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README.md
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codemirror.css
/* BASICS */
.CodeMirror {
/* Set height, width, borders, and global font properties here */
font-family: monospace;
height: 300px;
color: black;
}
/* PADDING */
.CodeMirror-lines {
padding: 4px 0; /* Vertical padding around content */
}
.CodeMirror pre {
padding: 0 4px; /* Horizontal padding of content */
}
.CodeMirror-scrollbar-filler, .CodeMirror-gutter-filler {
background-color: white; /* The little square between H and V scrollbars */
}
/* GUTTER */
.CodeMirror-gutters {
border-right: 1px solid #ddd;
background-color: #f7f7f7;
white-space: nowrap;
}
.CodeMirror-linenumbers {}
.CodeMirror-linenumber {
padding: 0 3px 0 5px;
min-width: 20px;
text-align: right;
color: #999;
white-space: nowrap;
}
.CodeMirror-guttermarker { color: black; }
.CodeMirror-guttermarker-subtle { color: #999; }
/* CURSOR */
.CodeMirror-cursor {
border-left: 1px solid black;
border-right: none;
width: 0;
}
/* Shown when moving in bi-directional text */
.CodeMirror div.CodeMirror-secondarycursor {
border-left: 1px solid silver;
}
.cm-fat-cursor .CodeMirror-cursor {
width: auto;
border: 0;
background: #7e7;
}
.cm-fat-cursor div.CodeMirror-cursors {
z-index: 1;
}
.cm-animate-fat-cursor {
width: auto;
border: 0;
-webkit-animation: blink 1.06s steps(1) infinite;
-moz-animation: blink 1.06s steps(1) infinite;
animation: blink 1.06s steps(1) infinite;
background-color: #7e7;
}
@-moz-keyframes blink {
0% {}
50% { background-color: transparent; }
100% {}
}
@-webkit-keyframes blink {
0% {}
50% { background-color: transparent; }
100% {}
}
@keyframes blink {
0% {}
50% { background-color: transparent; }
100% {}
}
/* Can style cursor different in overwrite (non-insert) mode */
.CodeMirror-overwrite .CodeMirror-cursor {}
.cm-tab { display: inline-block; text-decoration: inherit; }
.CodeMirror-ruler {
border-left: 1px solid #ccc;
position: absolute;
}
/* DEFAULT THEME */
.cm-s-default .cm-header {color: blue;}
.cm-s-default .cm-quote {color: #090;}
.cm-negative {color: #d44;}
.cm-positive {color: #292;}
.cm-header, .cm-strong {font-weight: bold;}
.cm-em {font-style: italic;}
.cm-link {text-decoration: underline;}
.cm-strikethrough {text-decoration: line-through;}
.cm-s-default .cm-keyword {color: #708;}
.cm-s-default .cm-atom {color: #219;}
.cm-s-default .cm-number {color: #164;}
.cm-s-default .cm-def {color: #00f;}
.cm-s-default .cm-variable,
.cm-s-default .cm-punctuation,
.cm-s-default .cm-property,
.cm-s-default .cm-operator {}
.cm-s-default .cm-variable-2 {color: #05a;}
.cm-s-default .cm-variable-3 {color: #085;}
.cm-s-default .cm-comment {color: #a50;}
.cm-s-default .cm-string {color: #a11;}
.cm-s-default .cm-string-2 {color: #f50;}
.cm-s-default .cm-meta {color: #555;}
.cm-s-default .cm-qualifier {color: #555;}
.cm-s-default .cm-builtin {color: #30a;}
.cm-s-default .cm-bracket {color: #997;}
.cm-s-default .cm-tag {color: #170;}
.cm-s-default .cm-attribute {color: #00c;}
.cm-s-default .cm-hr {color: #999;}
.cm-s-default .cm-link {color: #00c;}
.cm-s-default .cm-error {color: #f00;}
.cm-invalidchar {color: #f00;}
.CodeMirror-composing { border-bottom: 2px solid; }
/* Default styles for common addons */
div.CodeMirror span.CodeMirror-matchingbracket {color: #0f0;}
div.CodeMirror span.CodeMirror-nonmatchingbracket {color: #f22;}
.CodeMirror-matchingtag { background: rgba(255, 150, 0, .3); }
.CodeMirror-activeline-background {background: #e8f2ff;}
/* STOP */
/* The rest of this file contains styles related to the mechanics of
the editor. You probably shouldn't touch them. */
.CodeMirror {
position: relative;
overflow: hidden;
background: white;
}
.CodeMirror-scroll {
overflow: scroll !important; /* Things will break if this is overridden */
/* 30px is the magic margin used to hide the element's real scrollbars */
/* See overflow: hidden in .CodeMirror */
margin-bottom: -30px; margin-right: -30px;
padding-bottom: 30px;
height: 100%;
outline: none; /* Prevent dragging from highlighting the element */
position: relative;
}
.CodeMirror-sizer {
position: relative;
border-right: 30px solid transparent;
}
/* The fake, visible scrollbars. Used to force redraw during scrolling
before actuall scrolling happens, thus preventing shaking and
flickering artifacts. */
.CodeMirror-vscrollbar, .CodeMirror-hscrollbar, .CodeMirror-scrollbar-filler, .CodeMirror-gutter-filler {
position: absolute;
z-index: 6;
display: none;
}
.CodeMirror-vscrollbar {
right: 0; top: 0;
overflow-x: hidden;
overflow-y: scroll;
}
.CodeMirror-hscrollbar {
bottom: 0; left: 0;
overflow-y: hidden;
overflow-x: scroll;
}
.CodeMirror-scrollbar-filler {
right: 0; bottom: 0;
}
.CodeMirror-gutter-filler {
left: 0; bottom: 0;
}
.CodeMirror-gutters {
position: absolute; left: 0; top: 0;
z-index: 3;
}
.CodeMirror-gutter {
white-space: normal;
height: 100%;
display: inline-block;
margin-bottom: -30px;
/* Hack to make IE7 behave */
*zoom:1;
*display:inline;
}
.CodeMirror-gutter-wrapper {
position: absolute;
z-index: 4;
background: none !important;
border: none !important;
}
.CodeMirror-gutter-background {
position: absolute;
top: 0; bottom: 0;
z-index: 4;
}
.CodeMirror-gutter-elt {
position: absolute;
cursor: default;
z-index: 4;
}
.CodeMirror-gutter-wrapper {
-webkit-user-select: none;
-moz-user-select: none;
user-select: none;
}
.CodeMirror-lines {
cursor: text;
min-height: 1px; /* prevents collapsing before first draw */
}
.CodeMirror pre {
/* Reset some styles that the rest of the page might have set */
-moz-border-radius: 0; -webkit-border-radius: 0; border-radius: 0;
border-width: 0;
background: transparent;
font-family: inherit;
font-size: inherit;
margin: 0;
white-space: pre;
word-wrap: normal;
line-height: inherit;
color: inherit;
z-index: 2;
position: relative;
overflow: visible;
-webkit-tap-highlight-color: transparent;
}
.CodeMirror-wrap pre {
word-wrap: break-word;
white-space: pre-wrap;
word-break: normal;
}
.CodeMirror-linebackground {
position: absolute;
left: 0; right: 0; top: 0; bottom: 0;
z-index: 0;
}
.CodeMirror-linewidget {
position: relative;
z-index: 2;
overflow: auto;
}
.CodeMirror-widget {}
.CodeMirror-code {
outline: none;
}
/* Force content-box sizing for the elements where we expect it */
.CodeMirror-scroll,
.CodeMirror-sizer,
.CodeMirror-gutter,
.CodeMirror-gutters,
.CodeMirror-linenumber {
-moz-box-sizing: content-box;
box-sizing: content-box;
}
.CodeMirror-measure {
position: absolute;
width: 100%;
height: 0;
overflow: hidden;
visibility: hidden;
}
.CodeMirror-cursor { position: absolute; }
.CodeMirror-measure pre { position: static; }
div.CodeMirror-cursors {
visibility: hidden;
position: relative;
z-index: 3;
}
div.CodeMirror-dragcursors {
visibility: visible;
}
.CodeMirror-focused div.CodeMirror-cursors {
visibility: visible;
}
.CodeMirror-selected { background: #d9d9d9; }
.CodeMirror-focused .CodeMirror-selected { background: #d7d4f0; }
.CodeMirror-crosshair { cursor: crosshair; }
.CodeMirror-line::selection, .CodeMirror-line > span::selection, .CodeMirror-line > span > span::selection { background: #d7d4f0; }
.CodeMirror-line::-moz-selection, .CodeMirror-line > span::-moz-selection, .CodeMirror-line > span > span::-moz-selection { background: #d7d4f0; }
.cm-searching {
background: #ffa;
background: rgba(255, 255, 0, .4);
}
/* IE7 hack to prevent it from returning funny offsetTops on the spans */
.CodeMirror span { *vertical-align: text-bottom; }
/* Used to force a border model for a node */
.cm-force-border { padding-right: .1px; }
@media print {
/* Hide the cursor when printing */
.CodeMirror div.CodeMirror-cursors {
visibility: hidden;
}
}
/* See issue #2901 */
.cm-tab-wrap-hack:after { content: ''; }
/* Help users use markselection to safely style text background */
span.CodeMirror-selectedtext { background: none; }
Raw
codemirror.js
// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: http://codemirror.net/LICENSE
// This is CodeMirror (http://codemirror.net), a code editor
// implemented in JavaScript on top of the browser's DOM.
//
// You can find some technical background for some of the code below
// at http://marijnhaverbeke.nl/blog/#cm-internals .
(function(mod) {
if (typeof exports == "object" && typeof module == "object") // CommonJS
module.exports = mod();
else if (typeof define == "function" && define.amd) // AMD
return define([], mod);
else // Plain browser env
this.CodeMirror = mod();
})(function() {
"use strict";
// BROWSER SNIFFING
// Kludges for bugs and behavior differences that can't be feature
// detected are enabled based on userAgent etc sniffing.
var gecko = /gecko\/\d/i.test(navigator.userAgent);
var ie_upto10 = /MSIE \d/.test(navigator.userAgent);
var ie_11up = /Trident\/(?:[7-9]|\d{2,})\..*rv:(\d+)/.exec(navigator.userAgent);
var ie = ie_upto10 || ie_11up;
var ie_version = ie && (ie_upto10 ? document.documentMode || 6 : ie_11up[1]);
var webkit = /WebKit\//.test(navigator.userAgent);
var qtwebkit = webkit && /Qt\/\d+\.\d+/.test(navigator.userAgent);
var chrome = /Chrome\//.test(navigator.userAgent);
var presto = /Opera\//.test(navigator.userAgent);
var safari = /Apple Computer/.test(navigator.vendor);
var mac_geMountainLion = /Mac OS X 1\d\D([8-9]|\d\d)\D/.test(navigator.userAgent);
var phantom = /PhantomJS/.test(navigator.userAgent);
var ios = /AppleWebKit/.test(navigator.userAgent) && /Mobile\/\w+/.test(navigator.userAgent);
// This is woefully incomplete. Suggestions for alternative methods welcome.
var mobile = ios || /Android|webOS|BlackBerry|Opera Mini|Opera Mobi|IEMobile/i.test(navigator.userAgent);
var mac = ios || /Mac/.test(navigator.platform);
var windows = /win/i.test(navigator.platform);
var presto_version = presto && navigator.userAgent.match(/Version\/(\d*\.\d*)/);
if (presto_version) presto_version = Number(presto_version[1]);
if (presto_version && presto_version >= 15) { presto = false; webkit = true; }
// Some browsers use the wrong event properties to signal cmd/ctrl on OS X
var flipCtrlCmd = mac && (qtwebkit || presto && (presto_version == null || presto_version < 12.11));
var captureRightClick = gecko || (ie && ie_version >= 9);
// Optimize some code when these features are not used.
var sawReadOnlySpans = false, sawCollapsedSpans = false;
// EDITOR CONSTRUCTOR
// A CodeMirror instance represents an editor. This is the object
// that user code is usually dealing with.
function CodeMirror(place, options) {
if (!(this instanceof CodeMirror)) return new CodeMirror(place, options);
this.options = options = options ? copyObj(options) : {};
// Determine effective options based on given values and defaults.
copyObj(defaults, options, false);
setGuttersForLineNumbers(options);
var doc = options.value;
if (typeof doc == "string") doc = new Doc(doc, options.mode, null, options.lineSeparator);
this.doc = doc;
var input = new CodeMirror.inputStyles[options.inputStyle](this);
var display = this.display = new Display(place, doc, input);
display.wrapper.CodeMirror = this;
updateGutters(this);
themeChanged(this);
if (options.lineWrapping)
this.display.wrapper.className += " CodeMirror-wrap";
if (options.autofocus && !mobile) display.input.focus();
initScrollbars(this);
this.state = {
keyMaps: [], // stores maps added by addKeyMap
overlays: [], // highlighting overlays, as added by addOverlay
modeGen: 0, // bumped when mode/overlay changes, used to invalidate highlighting info
overwrite: false,
delayingBlurEvent: false,
focused: false,
suppressEdits: false, // used to disable editing during key handlers when in readOnly mode
pasteIncoming: false, cutIncoming: false, // help recognize paste/cut edits in input.poll
selectingText: false,
draggingText: false,
highlight: new Delayed(), // stores highlight worker timeout
keySeq: null, // Unfinished key sequence
specialChars: null
};
var cm = this;
// Override magic textarea content restore that IE sometimes does
// on our hidden textarea on reload
if (ie && ie_version < 11) setTimeout(function() { cm.display.input.reset(true); }, 20);
registerEventHandlers(this);
ensureGlobalHandlers();
startOperation(this);
this.curOp.forceUpdate = true;
attachDoc(this, doc);
if ((options.autofocus && !mobile) || cm.hasFocus())
setTimeout(bind(onFocus, this), 20);
else
onBlur(this);
for (var opt in optionHandlers) if (optionHandlers.hasOwnProperty(opt))
optionHandlers[opt](this, options[opt], Init);
maybeUpdateLineNumberWidth(this);
if (options.finishInit) options.finishInit(this);
for (var i = 0; i < initHooks.length; ++i) initHooks[i](this);
endOperation(this);
// Suppress optimizelegibility in Webkit, since it breaks text
// measuring on line wrapping boundaries.
if (webkit && options.lineWrapping &&
getComputedStyle(display.lineDiv).textRendering == "optimizelegibility")
display.lineDiv.style.textRendering = "auto";
}
// DISPLAY CONSTRUCTOR
// The display handles the DOM integration, both for input reading
// and content drawing. It holds references to DOM nodes and
// display-related state.
function Display(place, doc, input) {
var d = this;
this.input = input;
// Covers bottom-right square when both scrollbars are present.
d.scrollbarFiller = elt("div", null, "CodeMirror-scrollbar-filler");
d.scrollbarFiller.setAttribute("cm-not-content", "true");
// Covers bottom of gutter when coverGutterNextToScrollbar is on
// and h scrollbar is present.
d.gutterFiller = elt("div", null, "CodeMirror-gutter-filler");
d.gutterFiller.setAttribute("cm-not-content", "true");
// Will contain the actual code, positioned to cover the viewport.
d.lineDiv = elt("div", null, "CodeMirror-code");
// Elements are added to these to represent selection and cursors.
d.selectionDiv = elt("div", null, null, "position: relative; z-index: 1");
d.cursorDiv = elt("div", null, "CodeMirror-cursors");
// A visibility: hidden element used to find the size of things.
d.measure = elt("div", null, "CodeMirror-measure");
// When lines outside of the viewport are measured, they are drawn in this.
d.lineMeasure = elt("div", null, "CodeMirror-measure");
// Wraps everything that needs to exist inside the vertically-padded coordinate system
d.lineSpace = elt("div", [d.measure, d.lineMeasure, d.selectionDiv, d.cursorDiv, d.lineDiv],
null, "position: relative; outline: none");
// Moved around its parent to cover visible view.
d.mover = elt("div", [elt("div", [d.lineSpace], "CodeMirror-lines")], null, "position: relative");
// Set to the height of the document, allowing scrolling.
d.sizer = elt("div", [d.mover], "CodeMirror-sizer");
d.sizerWidth = null;
// Behavior of elts with overflow: auto and padding is
// inconsistent across browsers. This is used to ensure the
// scrollable area is big enough.
d.heightForcer = elt("div", null, null, "position: absolute; height: " + scrollerGap + "px; width: 1px;");
// Will contain the gutters, if any.
d.gutters = elt("div", null, "CodeMirror-gutters");
d.lineGutter = null;
// Actual scrollable element.
d.scroller = elt("div", [d.sizer, d.heightForcer, d.gutters], "CodeMirror-scroll");
d.scroller.setAttribute("tabIndex", "-1");
// The element in which the editor lives.
d.wrapper = elt("div", [d.scrollbarFiller, d.gutterFiller, d.scroller], "CodeMirror");
// Work around IE7 z-index bug (not perfect, hence IE7 not really being supported)
if (ie && ie_version < 8) { d.gutters.style.zIndex = -1; d.scroller.style.paddingRight = 0; }
if (!webkit && !(gecko && mobile)) d.scroller.draggable = true;
if (place) {
if (place.appendChild) place.appendChild(d.wrapper);
else place(d.wrapper);
}
// Current rendered range (may be bigger than the view window).
d.viewFrom = d.viewTo = doc.first;
d.reportedViewFrom = d.reportedViewTo = doc.first;
// Information about the rendered lines.
d.view = [];
d.renderedView = null;
// Holds info about a single rendered line when it was rendered
// for measurement, while not in view.
d.externalMeasured = null;
// Empty space (in pixels) above the view
d.viewOffset = 0;
d.lastWrapHeight = d.lastWrapWidth = 0;
d.updateLineNumbers = null;
d.nativeBarWidth = d.barHeight = d.barWidth = 0;
d.scrollbarsClipped = false;
// Used to only resize the line number gutter when necessary (when
// the amount of lines crosses a boundary that makes its width change)
d.lineNumWidth = d.lineNumInnerWidth = d.lineNumChars = null;
// Set to true when a non-horizontal-scrolling line widget is
// added. As an optimization, line widget aligning is skipped when
// this is false.
d.alignWidgets = false;
d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null;
// Tracks the maximum line length so that the horizontal scrollbar
// can be kept static when scrolling.
d.maxLine = null;
d.maxLineLength = 0;
d.maxLineChanged = false;
// Used for measuring wheel scrolling granularity
d.wheelDX = d.wheelDY = d.wheelStartX = d.wheelStartY = null;
// True when shift is held down.
d.shift = false;
// Used to track whether anything happened since the context menu
// was opened.
d.selForContextMenu = null;
d.activeTouch = null;
input.init(d);
}
// STATE UPDATES
// Used to get the editor into a consistent state again when options change.
function loadMode(cm) {
cm.doc.mode = CodeMirror.getMode(cm.options, cm.doc.modeOption);
resetModeState(cm);
}
function resetModeState(cm) {
cm.doc.iter(function(line) {
if (line.stateAfter) line.stateAfter = null;
if (line.styles) line.styles = null;
});
cm.doc.frontier = cm.doc.first;
startWorker(cm, 100);
cm.state.modeGen++;
if (cm.curOp) regChange(cm);
}
function wrappingChanged(cm) {
if (cm.options.lineWrapping) {
addClass(cm.display.wrapper, "CodeMirror-wrap");
cm.display.sizer.style.minWidth = "";
cm.display.sizerWidth = null;
} else {
rmClass(cm.display.wrapper, "CodeMirror-wrap");
findMaxLine(cm);
}
estimateLineHeights(cm);
regChange(cm);
clearCaches(cm);
setTimeout(function(){updateScrollbars(cm);}, 100);
}
// Returns a function that estimates the height of a line, to use as
// first approximation until the line becomes visible (and is thus
// properly measurable).
function estimateHeight(cm) {
var th = textHeight(cm.display), wrapping = cm.options.lineWrapping;
var perLine = wrapping && Math.max(5, cm.display.scroller.clientWidth / charWidth(cm.display) - 3);
return function(line) {
if (lineIsHidden(cm.doc, line)) return 0;
var widgetsHeight = 0;
if (line.widgets) for (var i = 0; i < line.widgets.length; i++) {
if (line.widgets[i].height) widgetsHeight += line.widgets[i].height;
}
if (wrapping)
return widgetsHeight + (Math.ceil(line.text.length / perLine) || 1) * th;
else
return widgetsHeight + th;
};
}
function estimateLineHeights(cm) {
var doc = cm.doc, est = estimateHeight(cm);
doc.iter(function(line) {
var estHeight = est(line);
if (estHeight != line.height) updateLineHeight(line, estHeight);
});
}
function themeChanged(cm) {
cm.display.wrapper.className = cm.display.wrapper.className.replace(/\s*cm-s-\S+/g, "") +
cm.options.theme.replace(/(^|\s)\s*/g, " cm-s-");
clearCaches(cm);
}
function guttersChanged(cm) {
updateGutters(cm);
regChange(cm);
setTimeout(function(){alignHorizontally(cm);}, 20);
}
// Rebuild the gutter elements, ensure the margin to the left of the
// code matches their width.
function updateGutters(cm) {
var gutters = cm.display.gutters, specs = cm.options.gutters;
removeChildren(gutters);
for (var i = 0; i < specs.length; ++i) {
var gutterClass = specs[i];
var gElt = gutters.appendChild(elt("div", null, "CodeMirror-gutter " + gutterClass));
if (gutterClass == "CodeMirror-linenumbers") {
cm.display.lineGutter = gElt;
gElt.style.width = (cm.display.lineNumWidth || 1) + "px";
}
}
gutters.style.display = i ? "" : "none";
updateGutterSpace(cm);
}
function updateGutterSpace(cm) {
var width = cm.display.gutters.offsetWidth;
cm.display.sizer.style.marginLeft = width + "px";
}
// Compute the character length of a line, taking into account
// collapsed ranges (see markText) that might hide parts, and join
// other lines onto it.
function lineLength(line) {
if (line.height == 0) return 0;
var len = line.text.length, merged, cur = line;
while (merged = collapsedSpanAtStart(cur)) {
var found = merged.find(0, true);
cur = found.from.line;
len += found.from.ch - found.to.ch;
}
cur = line;
while (merged = collapsedSpanAtEnd(cur)) {
var found = merged.find(0, true);
len -= cur.text.length - found.from.ch;
cur = found.to.line;
len += cur.text.length - found.to.ch;
}
return len;
}
// Find the longest line in the document.
function findMaxLine(cm) {
var d = cm.display, doc = cm.doc;
d.maxLine = getLine(doc, doc.first);
d.maxLineLength = lineLength(d.maxLine);
d.maxLineChanged = true;
doc.iter(function(line) {
var len = lineLength(line);
if (len > d.maxLineLength) {
d.maxLineLength = len;
d.maxLine = line;
}
});
}
// Make sure the gutters options contains the element
// "CodeMirror-linenumbers" when the lineNumbers option is true.
function setGuttersForLineNumbers(options) {
var found = indexOf(options.gutters, "CodeMirror-linenumbers");
if (found == -1 && options.lineNumbers) {
options.gutters = options.gutters.concat(["CodeMirror-linenumbers"]);
} else if (found > -1 && !options.lineNumbers) {
options.gutters = options.gutters.slice(0);
options.gutters.splice(found, 1);
}
}
// SCROLLBARS
// Prepare DOM reads needed to update the scrollbars. Done in one
// shot to minimize update/measure roundtrips.
function measureForScrollbars(cm) {
var d = cm.display, gutterW = d.gutters.offsetWidth;
var docH = Math.round(cm.doc.height + paddingVert(cm.display));
return {
clientHeight: d.scroller.clientHeight,
viewHeight: d.wrapper.clientHeight,
scrollWidth: d.scroller.scrollWidth, clientWidth: d.scroller.clientWidth,
viewWidth: d.wrapper.clientWidth,
barLeft: cm.options.fixedGutter ? gutterW : 0,
docHeight: docH,
scrollHeight: docH + scrollGap(cm) + d.barHeight,
nativeBarWidth: d.nativeBarWidth,
gutterWidth: gutterW
};
}
function NativeScrollbars(place, scroll, cm) {
this.cm = cm;
var vert = this.vert = elt("div", [elt("div", null, null, "min-width: 1px")], "CodeMirror-vscrollbar");
var horiz = this.horiz = elt("div", [elt("div", null, null, "height: 100%; min-height: 1px")], "CodeMirror-hscrollbar");
place(vert); place(horiz);
on(vert, "scroll", function() {
if (vert.clientHeight) scroll(vert.scrollTop, "vertical");
});
on(horiz, "scroll", function() {
if (horiz.clientWidth) scroll(horiz.scrollLeft, "horizontal");
});
this.checkedOverlay = false;
// Need to set a minimum width to see the scrollbar on IE7 (but must not set it on IE8).
if (ie && ie_version < 8) this.horiz.style.minHeight = this.vert.style.minWidth = "18px";
}
NativeScrollbars.prototype = copyObj({
update: function(measure) {
var needsH = measure.scrollWidth > measure.clientWidth + 1;
var needsV = measure.scrollHeight > measure.clientHeight + 1;
var sWidth = measure.nativeBarWidth;
if (needsV) {
this.vert.style.display = "block";
this.vert.style.bottom = needsH ? sWidth + "px" : "0";
var totalHeight = measure.viewHeight - (needsH ? sWidth : 0);
// A bug in IE8 can cause this value to be negative, so guard it.
this.vert.firstChild.style.height =
Math.max(0, measure.scrollHeight - measure.clientHeight + totalHeight) + "px";
} else {
this.vert.style.display = "";
this.vert.firstChild.style.height = "0";
}
if (needsH) {
this.horiz.style.display = "block";
this.horiz.style.right = needsV ? sWidth + "px" : "0";
this.horiz.style.left = measure.barLeft + "px";
var totalWidth = measure.viewWidth - measure.barLeft - (needsV ? sWidth : 0);
this.horiz.firstChild.style.width =
(measure.scrollWidth - measure.clientWidth + totalWidth) + "px";
} else {
this.horiz.style.display = "";
this.horiz.firstChild.style.width = "0";
}
if (!this.checkedOverlay && measure.clientHeight > 0) {
if (sWidth == 0) this.overlayHack();
this.checkedOverlay = true;
}
return {right: needsV ? sWidth : 0, bottom: needsH ? sWidth : 0};
},
setScrollLeft: function(pos) {
if (this.horiz.scrollLeft != pos) this.horiz.scrollLeft = pos;
},
setScrollTop: function(pos) {
if (this.vert.scrollTop != pos) this.vert.scrollTop = pos;
},
overlayHack: function() {
var w = mac && !mac_geMountainLion ? "12px" : "18px";
this.horiz.style.minHeight = this.vert.style.minWidth = w;
var self = this;
var barMouseDown = function(e) {
if (e_target(e) != self.vert && e_target(e) != self.horiz)
operation(self.cm, onMouseDown)(e);
};
on(this.vert, "mousedown", barMouseDown);
on(this.horiz, "mousedown", barMouseDown);
},
clear: function() {
var parent = this.horiz.parentNode;
parent.removeChild(this.horiz);
parent.removeChild(this.vert);
}
}, NativeScrollbars.prototype);
function NullScrollbars() {}
NullScrollbars.prototype = copyObj({
update: function() { return {bottom: 0, right: 0}; },
setScrollLeft: function() {},
setScrollTop: function() {},
clear: function() {}
}, NullScrollbars.prototype);
CodeMirror.scrollbarModel = {"native": NativeScrollbars, "null": NullScrollbars};
function initScrollbars(cm) {
if (cm.display.scrollbars) {
cm.display.scrollbars.clear();
if (cm.display.scrollbars.addClass)
rmClass(cm.display.wrapper, cm.display.scrollbars.addClass);
}
cm.display.scrollbars = new CodeMirror.scrollbarModel[cm.options.scrollbarStyle](function(node) {
cm.display.wrapper.insertBefore(node, cm.display.scrollbarFiller);
// Prevent clicks in the scrollbars from killing focus
on(node, "mousedown", function() {
if (cm.state.focused) setTimeout(function() { cm.display.input.focus(); }, 0);
});
node.setAttribute("cm-not-content", "true");
}, function(pos, axis) {
if (axis == "horizontal") setScrollLeft(cm, pos);
else setScrollTop(cm, pos);
}, cm);
if (cm.display.scrollbars.addClass)
addClass(cm.display.wrapper, cm.display.scrollbars.addClass);
}
function updateScrollbars(cm, measure) {
if (!measure) measure = measureForScrollbars(cm);
var startWidth = cm.display.barWidth, startHeight = cm.display.barHeight;
updateScrollbarsInner(cm, measure);
for (var i = 0; i < 4 && startWidth != cm.display.barWidth || startHeight != cm.display.barHeight; i++) {
if (startWidth != cm.display.barWidth && cm.options.lineWrapping)
updateHeightsInViewport(cm);
updateScrollbarsInner(cm, measureForScrollbars(cm));
startWidth = cm.display.barWidth; startHeight = cm.display.barHeight;
}
}
// Re-synchronize the fake scrollbars with the actual size of the
// content.
function updateScrollbarsInner(cm, measure) {
var d = cm.display;
var sizes = d.scrollbars.update(measure);
d.sizer.style.paddingRight = (d.barWidth = sizes.right) + "px";
d.sizer.style.paddingBottom = (d.barHeight = sizes.bottom) + "px";
if (sizes.right && sizes.bottom) {
d.scrollbarFiller.style.display = "block";
d.scrollbarFiller.style.height = sizes.bottom + "px";
d.scrollbarFiller.style.width = sizes.right + "px";
} else d.scrollbarFiller.style.display = "";
if (sizes.bottom && cm.options.coverGutterNextToScrollbar && cm.options.fixedGutter) {
d.gutterFiller.style.display = "block";
d.gutterFiller.style.height = sizes.bottom + "px";
d.gutterFiller.style.width = measure.gutterWidth + "px";
} else d.gutterFiller.style.display = "";
}
// Compute the lines that are visible in a given viewport (defaults
// the the current scroll position). viewport may contain top,
// height, and ensure (see op.scrollToPos) properties.
function visibleLines(display, doc, viewport) {
var top = viewport && viewport.top != null ? Math.max(0, viewport.top) : display.scroller.scrollTop;
top = Math.floor(top - paddingTop(display));
var bottom = viewport && viewport.bottom != null ? viewport.bottom : top + display.wrapper.clientHeight;
var from = lineAtHeight(doc, top), to = lineAtHeight(doc, bottom);
// Ensure is a {from: {line, ch}, to: {line, ch}} object, and
// forces those lines into the viewport (if possible).
if (viewport && viewport.ensure) {
var ensureFrom = viewport.ensure.from.line, ensureTo = viewport.ensure.to.line;
if (ensureFrom < from) {
from = ensureFrom;
to = lineAtHeight(doc, heightAtLine(getLine(doc, ensureFrom)) + display.wrapper.clientHeight);
} else if (Math.min(ensureTo, doc.lastLine()) >= to) {
from = lineAtHeight(doc, heightAtLine(getLine(doc, ensureTo)) - display.wrapper.clientHeight);
to = ensureTo;
}
}
return {from: from, to: Math.max(to, from + 1)};
}
// LINE NUMBERS
// Re-align line numbers and gutter marks to compensate for
// horizontal scrolling.
function alignHorizontally(cm) {
var display = cm.display, view = display.view;
if (!display.alignWidgets && (!display.gutters.firstChild || !cm.options.fixedGutter)) return;
var comp = compensateForHScroll(display) - display.scroller.scrollLeft + cm.doc.scrollLeft;
var gutterW = display.gutters.offsetWidth, left = comp + "px";
for (var i = 0; i < view.length; i++) if (!view[i].hidden) {
if (cm.options.fixedGutter && view[i].gutter)
view[i].gutter.style.left = left;
var align = view[i].alignable;
if (align) for (var j = 0; j < align.length; j++)
align[j].style.left = left;
}
if (cm.options.fixedGutter)
display.gutters.style.left = (comp + gutterW) + "px";
}
// Used to ensure that the line number gutter is still the right
// size for the current document size. Returns true when an update
// is needed.
function maybeUpdateLineNumberWidth(cm) {
if (!cm.options.lineNumbers) return false;
var doc = cm.doc, last = lineNumberFor(cm.options, doc.first + doc.size - 1), display = cm.display;
if (last.length != display.lineNumChars) {
var test = display.measure.appendChild(elt("div", [elt("div", last)],
"CodeMirror-linenumber CodeMirror-gutter-elt"));
var innerW = test.firstChild.offsetWidth, padding = test.offsetWidth - innerW;
display.lineGutter.style.width = "";
display.lineNumInnerWidth = Math.max(innerW, display.lineGutter.offsetWidth - padding) + 1;
display.lineNumWidth = display.lineNumInnerWidth + padding;
display.lineNumChars = display.lineNumInnerWidth ? last.length : -1;
display.lineGutter.style.width = display.lineNumWidth + "px";
updateGutterSpace(cm);
return true;
}
return false;
}
function lineNumberFor(options, i) {
return String(options.lineNumberFormatter(i + options.firstLineNumber));
}
// Computes display.scroller.scrollLeft + display.gutters.offsetWidth,
// but using getBoundingClientRect to get a sub-pixel-accurate
// result.
function compensateForHScroll(display) {
return display.scroller.getBoundingClientRect().left - display.sizer.getBoundingClientRect().left;
}
// DISPLAY DRAWING
function DisplayUpdate(cm, viewport, force) {
var display = cm.display;
this.viewport = viewport;
// Store some values that we'll need later (but don't want to force a relayout for)
this.visible = visibleLines(display, cm.doc, viewport);
this.editorIsHidden = !display.wrapper.offsetWidth;
this.wrapperHeight = display.wrapper.clientHeight;
this.wrapperWidth = display.wrapper.clientWidth;
this.oldDisplayWidth = displayWidth(cm);
this.force = force;
this.dims = getDimensions(cm);
this.events = [];
}
DisplayUpdate.prototype.signal = function(emitter, type) {
if (hasHandler(emitter, type))
this.events.push(arguments);
};
DisplayUpdate.prototype.finish = function() {
for (var i = 0; i < this.events.length; i++)
signal.apply(null, this.events[i]);
};
function maybeClipScrollbars(cm) {
var display = cm.display;
if (!display.scrollbarsClipped && display.scroller.offsetWidth) {
display.nativeBarWidth = display.scroller.offsetWidth - display.scroller.clientWidth;
display.heightForcer.style.height = scrollGap(cm) + "px";
display.sizer.style.marginBottom = -display.nativeBarWidth + "px";
display.sizer.style.borderRightWidth = scrollGap(cm) + "px";
display.scrollbarsClipped = true;
}
}
// Does the actual updating of the line display. Bails out
// (returning false) when there is nothing to be done and forced is
// false.
function updateDisplayIfNeeded(cm, update) {
var display = cm.display, doc = cm.doc;
if (update.editorIsHidden) {
resetView(cm);
return false;
}
// Bail out if the visible area is already rendered and nothing changed.
if (!update.force &&
update.visible.from >= display.viewFrom && update.visible.to <= display.viewTo &&
(display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo) &&
display.renderedView == display.view && countDirtyView(cm) == 0)
return false;
if (maybeUpdateLineNumberWidth(cm)) {
resetView(cm);
update.dims = getDimensions(cm);
}
// Compute a suitable new viewport (from & to)
var end = doc.first + doc.size;
var from = Math.max(update.visible.from - cm.options.viewportMargin, doc.first);
var to = Math.min(end, update.visible.to + cm.options.viewportMargin);
if (display.viewFrom < from && from - display.viewFrom < 20) from = Math.max(doc.first, display.viewFrom);
if (display.viewTo > to && display.viewTo - to < 20) to = Math.min(end, display.viewTo);
if (sawCollapsedSpans) {
from = visualLineNo(cm.doc, from);
to = visualLineEndNo(cm.doc, to);
}
var different = from != display.viewFrom || to != display.viewTo ||
display.lastWrapHeight != update.wrapperHeight || display.lastWrapWidth != update.wrapperWidth;
adjustView(cm, from, to);
display.viewOffset = heightAtLine(getLine(cm.doc, display.viewFrom));
// Position the mover div to align with the current scroll position
cm.display.mover.style.top = display.viewOffset + "px";
var toUpdate = countDirtyView(cm);
if (!different && toUpdate == 0 && !update.force && display.renderedView == display.view &&
(display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo))
return false;
// For big changes, we hide the enclosing element during the
// update, since that speeds up the operations on most browsers.
var focused = activeElt();
if (toUpdate > 4) display.lineDiv.style.display = "none";
patchDisplay(cm, display.updateLineNumbers, update.dims);
if (toUpdate > 4) display.lineDiv.style.display = "";
display.renderedView = display.view;
// There might have been a widget with a focused element that got
// hidden or updated, if so re-focus it.
if (focused && activeElt() != focused && focused.offsetHeight) focused.focus();
// Prevent selection and cursors from interfering with the scroll
// width and height.
removeChildren(display.cursorDiv);
removeChildren(display.selectionDiv);
display.gutters.style.height = display.sizer.style.minHeight = 0;
if (different) {
display.lastWrapHeight = update.wrapperHeight;
display.lastWrapWidth = update.wrapperWidth;
startWorker(cm, 400);
}
display.updateLineNumbers = null;
return true;
}
function postUpdateDisplay(cm, update) {
var viewport = update.viewport;
for (var first = true;; first = false) {
if (!first || !cm.options.lineWrapping || update.oldDisplayWidth == displayWidth(cm)) {
// Clip forced viewport to actual scrollable area.
if (viewport && viewport.top != null)
viewport = {top: Math.min(cm.doc.height + paddingVert(cm.display) - displayHeight(cm), viewport.top)};
// Updated line heights might result in the drawn area not
// actually covering the viewport. Keep looping until it does.
update.visible = visibleLines(cm.display, cm.doc, viewport);
if (update.visible.from >= cm.display.viewFrom && update.visible.to <= cm.display.viewTo)
break;
}
if (!updateDisplayIfNeeded(cm, update)) break;
updateHeightsInViewport(cm);
var barMeasure = measureForScrollbars(cm);
updateSelection(cm);
setDocumentHeight(cm, barMeasure);
updateScrollbars(cm, barMeasure);
}
update.signal(cm, "update", cm);
if (cm.display.viewFrom != cm.display.reportedViewFrom || cm.display.viewTo != cm.display.reportedViewTo) {
update.signal(cm, "viewportChange", cm, cm.display.viewFrom, cm.display.viewTo);
cm.display.reportedViewFrom = cm.display.viewFrom; cm.display.reportedViewTo = cm.display.viewTo;
}
}
function updateDisplaySimple(cm, viewport) {
var update = new DisplayUpdate(cm, viewport);
if (updateDisplayIfNeeded(cm, update)) {
updateHeightsInViewport(cm);
postUpdateDisplay(cm, update);
var barMeasure = measureForScrollbars(cm);
updateSelection(cm);
setDocumentHeight(cm, barMeasure);
updateScrollbars(cm, barMeasure);
update.finish();
}
}
function setDocumentHeight(cm, measure) {
cm.display.sizer.style.minHeight = measure.docHeight + "px";
var total = measure.docHeight + cm.display.barHeight;
cm.display.heightForcer.style.top = total + "px";
cm.display.gutters.style.height = Math.max(total + scrollGap(cm), measure.clientHeight) + "px";
}
// Read the actual heights of the rendered lines, and update their
// stored heights to match.
function updateHeightsInViewport(cm) {
var display = cm.display;
var prevBottom = display.lineDiv.offsetTop;
for (var i = 0; i < display.view.length; i++) {
var cur = display.view[i], height;
if (cur.hidden) continue;
if (ie && ie_version < 8) {
var bot = cur.node.offsetTop + cur.node.offsetHeight;
height = bot - prevBottom;
prevBottom = bot;
} else {
var box = cur.node.getBoundingClientRect();
height = box.bottom - box.top;
}
var diff = cur.line.height - height;
if (height < 2) height = textHeight(display);
if (diff > .001 || diff < -.001) {
updateLineHeight(cur.line, height);
updateWidgetHeight(cur.line);
if (cur.rest) for (var j = 0; j < cur.rest.length; j++)
updateWidgetHeight(cur.rest[j]);
}
}
}
// Read and store the height of line widgets associated with the
// given line.
function updateWidgetHeight(line) {
if (line.widgets) for (var i = 0; i < line.widgets.length; ++i)
line.widgets[i].height = line.widgets[i].node.offsetHeight;
}
// Do a bulk-read of the DOM positions and sizes needed to draw the
// view, so that we don't interleave reading and writing to the DOM.
function getDimensions(cm) {
var d = cm.display, left = {}, width = {};
var gutterLeft = d.gutters.clientLeft;
for (var n = d.gutters.firstChild, i = 0; n; n = n.nextSibling, ++i) {
left[cm.options.gutters[i]] = n.offsetLeft + n.clientLeft + gutterLeft;
width[cm.options.gutters[i]] = n.clientWidth;
}
return {fixedPos: compensateForHScroll(d),
gutterTotalWidth: d.gutters.offsetWidth,
gutterLeft: left,
gutterWidth: width,
wrapperWidth: d.wrapper.clientWidth};
}
// Sync the actual display DOM structure with display.view, removing
// nodes for lines that are no longer in view, and creating the ones
// that are not there yet, and updating the ones that are out of
// date.
function patchDisplay(cm, updateNumbersFrom, dims) {
var display = cm.display, lineNumbers = cm.options.lineNumbers;
var container = display.lineDiv, cur = container.firstChild;
function rm(node) {
var next = node.nextSibling;
// Works around a throw-scroll bug in OS X Webkit
if (webkit && mac && cm.display.currentWheelTarget == node)
node.style.display = "none";
else
node.parentNode.removeChild(node);
return next;
}
var view = display.view, lineN = display.viewFrom;
// Loop over the elements in the view, syncing cur (the DOM nodes
// in display.lineDiv) with the view as we go.
for (var i = 0; i < view.length; i++) {
var lineView = view[i];
if (lineView.hidden) {
} else if (!lineView.node || lineView.node.parentNode != container) { // Not drawn yet
var node = buildLineElement(cm, lineView, lineN, dims);
container.insertBefore(node, cur);
} else { // Already drawn
while (cur != lineView.node) cur = rm(cur);
var updateNumber = lineNumbers && updateNumbersFrom != null &&
updateNumbersFrom <= lineN && lineView.lineNumber;
if (lineView.changes) {
if (indexOf(lineView.changes, "gutter") > -1) updateNumber = false;
updateLineForChanges(cm, lineView, lineN, dims);
}
if (updateNumber) {
removeChildren(lineView.lineNumber);
lineView.lineNumber.appendChild(document.createTextNode(lineNumberFor(cm.options, lineN)));
}
cur = lineView.node.nextSibling;
}
lineN += lineView.size;
}
while (cur) cur = rm(cur);
}
// When an aspect of a line changes, a string is added to
// lineView.changes. This updates the relevant part of the line's
// DOM structure.
function updateLineForChanges(cm, lineView, lineN, dims) {
for (var j = 0; j < lineView.changes.length; j++) {
var type = lineView.changes[j];
if (type == "text") updateLineText(cm, lineView);
else if (type == "gutter") updateLineGutter(cm, lineView, lineN, dims);
else if (type == "class") updateLineClasses(lineView);
else if (type == "widget") updateLineWidgets(cm, lineView, dims);
}
lineView.changes = null;
}
// Lines with gutter elements, widgets or a background class need to
// be wrapped, and have the extra elements added to the wrapper div
function ensureLineWrapped(lineView) {
if (lineView.node == lineView.text) {
lineView.node = elt("div", null, null, "position: relative");
if (lineView.text.parentNode)
lineView.text.parentNode.replaceChild(lineView.node, lineView.text);
lineView.node.appendChild(lineView.text);
if (ie && ie_version < 8) lineView.node.style.zIndex = 2;
}
return lineView.node;
}
function updateLineBackground(lineView) {
var cls = lineView.bgClass ? lineView.bgClass + " " + (lineView.line.bgClass || "") : lineView.line.bgClass;
if (cls) cls += " CodeMirror-linebackground";
if (lineView.background) {
if (cls) lineView.background.className = cls;
else { lineView.background.parentNode.removeChild(lineView.background); lineView.background = null; }
} else if (cls) {
var wrap = ensureLineWrapped(lineView);
lineView.background = wrap.insertBefore(elt("div", null, cls), wrap.firstChild);
}
}
// Wrapper around buildLineContent which will reuse the structure
// in display.externalMeasured when possible.
function getLineContent(cm, lineView) {
var ext = cm.display.externalMeasured;
if (ext && ext.line == lineView.line) {
cm.display.externalMeasured = null;
lineView.measure = ext.measure;
return ext.built;
}
return buildLineContent(cm, lineView);
}
// Redraw the line's text. Interacts with the background and text
// classes because the mode may output tokens that influence these
// classes.
function updateLineText(cm, lineView) {
var cls = lineView.text.className;
var built = getLineContent(cm, lineView);
if (lineView.text == lineView.node) lineView.node = built.pre;
lineView.text.parentNode.replaceChild(built.pre, lineView.text);
lineView.text = built.pre;
if (built.bgClass != lineView.bgClass || built.textClass != lineView.textClass) {
lineView.bgClass = built.bgClass;
lineView.textClass = built.textClass;
updateLineClasses(lineView);
} else if (cls) {
lineView.text.className = cls;
}
}
function updateLineClasses(lineView) {
updateLineBackground(lineView);
if (lineView.line.wrapClass)
ensureLineWrapped(lineView).className = lineView.line.wrapClass;
else if (lineView.node != lineView.text)
lineView.node.className = "";
var textClass = lineView.textClass ? lineView.textClass + " " + (lineView.line.textClass || "") : lineView.line.textClass;
lineView.text.className = textClass || "";
}
function updateLineGutter(cm, lineView, lineN, dims) {
if (lineView.gutter) {
lineView.node.removeChild(lineView.gutter);
lineView.gutter = null;
}
if (lineView.gutterBackground) {
lineView.node.removeChild(lineView.gutterBackground);
lineView.gutterBackground = null;
}
if (lineView.line.gutterClass) {
var wrap = ensureLineWrapped(lineView);
lineView.gutterBackground = elt("div", null, "CodeMirror-gutter-background " + lineView.line.gutterClass,
"left: " + (cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth) +
"px; width: " + dims.gutterTotalWidth + "px");
wrap.insertBefore(lineView.gutterBackground, lineView.text);
}
var markers = lineView.line.gutterMarkers;
if (cm.options.lineNumbers || markers) {
var wrap = ensureLineWrapped(lineView);
var gutterWrap = lineView.gutter = elt("div", null, "CodeMirror-gutter-wrapper", "left: " +
(cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth) + "px");
cm.display.input.setUneditable(gutterWrap);
wrap.insertBefore(gutterWrap, lineView.text);
if (lineView.line.gutterClass)
gutterWrap.className += " " + lineView.line.gutterClass;
if (cm.options.lineNumbers && (!markers || !markers["CodeMirror-linenumbers"]))
lineView.lineNumber = gutterWrap.appendChild(
elt("div", lineNumberFor(cm.options, lineN),
"CodeMirror-linenumber CodeMirror-gutter-elt",
"left: " + dims.gutterLeft["CodeMirror-linenumbers"] + "px; width: "
+ cm.display.lineNumInnerWidth + "px"));
if (markers) for (var k = 0; k < cm.options.gutters.length; ++k) {
var id = cm.options.gutters[k], found = markers.hasOwnProperty(id) && markers[id];
if (found)
gutterWrap.appendChild(elt("div", [found], "CodeMirror-gutter-elt", "left: " +
dims.gutterLeft[id] + "px; width: " + dims.gutterWidth[id] + "px"));
}
}
}
function updateLineWidgets(cm, lineView, dims) {
if (lineView.alignable) lineView.alignable = null;
for (var node = lineView.node.firstChild, next; node; node = next) {
var next = node.nextSibling;
if (node.className == "CodeMirror-linewidget")
lineView.node.removeChild(node);
}
insertLineWidgets(cm, lineView, dims);
}
// Build a line's DOM representation from scratch
function buildLineElement(cm, lineView, lineN, dims) {
var built = getLineContent(cm, lineView);
lineView.text = lineView.node = built.pre;
if (built.bgClass) lineView.bgClass = built.bgClass;
if (built.textClass) lineView.textClass = built.textClass;
updateLineClasses(lineView);
updateLineGutter(cm, lineView, lineN, dims);
insertLineWidgets(cm, lineView, dims);
return lineView.node;
}
// A lineView may contain multiple logical lines (when merged by
// collapsed spans). The widgets for all of them need to be drawn.
function insertLineWidgets(cm, lineView, dims) {
insertLineWidgetsFor(cm, lineView.line, lineView, dims, true);
if (lineView.rest) for (var i = 0; i < lineView.rest.length; i++)
insertLineWidgetsFor(cm, lineView.rest[i], lineView, dims, false);
}
function insertLineWidgetsFor(cm, line, lineView, dims, allowAbove) {
if (!line.widgets) return;
var wrap = ensureLineWrapped(lineView);
for (var i = 0, ws = line.widgets; i < ws.length; ++i) {
var widget = ws[i], node = elt("div", [widget.node], "CodeMirror-linewidget");
if (!widget.handleMouseEvents) node.setAttribute("cm-ignore-events", "true");
positionLineWidget(widget, node, lineView, dims);
cm.display.input.setUneditable(node);
if (allowAbove && widget.above)
wrap.insertBefore(node, lineView.gutter || lineView.text);
else
wrap.appendChild(node);
signalLater(widget, "redraw");
}
}
function positionLineWidget(widget, node, lineView, dims) {
if (widget.noHScroll) {
(lineView.alignable || (lineView.alignable = [])).push(node);
var width = dims.wrapperWidth;
node.style.left = dims.fixedPos + "px";
if (!widget.coverGutter) {
width -= dims.gutterTotalWidth;
node.style.paddingLeft = dims.gutterTotalWidth + "px";
}
node.style.width = width + "px";
}
if (widget.coverGutter) {
node.style.zIndex = 5;
node.style.position = "relative";
if (!widget.noHScroll) node.style.marginLeft = -dims.gutterTotalWidth + "px";
}
}
// POSITION OBJECT
// A Pos instance represents a position within the text.
var Pos = CodeMirror.Pos = function(line, ch) {
if (!(this instanceof Pos)) return new Pos(line, ch);
this.line = line; this.ch = ch;
};
// Compare two positions, return 0 if they are the same, a negative
// number when a is less, and a positive number otherwise.
var cmp = CodeMirror.cmpPos = function(a, b) { return a.line - b.line || a.ch - b.ch; };
function copyPos(x) {return Pos(x.line, x.ch);}
function maxPos(a, b) { return cmp(a, b) < 0 ? b : a; }
function minPos(a, b) { return cmp(a, b) < 0 ? a : b; }
// INPUT HANDLING
function ensureFocus(cm) {
if (!cm.state.focused) { cm.display.input.focus(); onFocus(cm); }
}
function isReadOnly(cm) {
return cm.options.readOnly || cm.doc.cantEdit;
}
// This will be set to an array of strings when copying, so that,
// when pasting, we know what kind of selections the copied text
// was made out of.
var lastCopied = null;
function applyTextInput(cm, inserted, deleted, sel, origin) {
var doc = cm.doc;
cm.display.shift = false;
if (!sel) sel = doc.sel;
var paste = cm.state.pasteIncoming || origin == "paste";
var textLines = doc.splitLines(inserted), multiPaste = null;
// When pasing N lines into N selections, insert one line per selection
if (paste && sel.ranges.length > 1) {
if (lastCopied && lastCopied.join("\n") == inserted) {
if (sel.ranges.length % lastCopied.length == 0) {
multiPaste = [];
for (var i = 0; i < lastCopied.length; i++)
multiPaste.push(doc.splitLines(lastCopied[i]));
}
} else if (textLines.length == sel.ranges.length) {
multiPaste = map(textLines, function(l) { return [l]; });
}
}
// Normal behavior is to insert the new text into every selection
for (var i = sel.ranges.length - 1; i >= 0; i--) {
var range = sel.ranges[i];
var from = range.from(), to = range.to();
if (range.empty()) {
if (deleted && deleted > 0) // Handle deletion
from = Pos(from.line, from.ch - deleted);
else if (cm.state.overwrite && !paste) // Handle overwrite
to = Pos(to.line, Math.min(getLine(doc, to.line).text.length, to.ch + lst(textLines).length));
}
var updateInput = cm.curOp.updateInput;
var changeEvent = {from: from, to: to, text: multiPaste ? multiPaste[i % multiPaste.length] : textLines,
origin: origin || (paste ? "paste" : cm.state.cutIncoming ? "cut" : "+input")};
makeChange(cm.doc, changeEvent);
signalLater(cm, "inputRead", cm, changeEvent);
}
if (inserted && !paste)
triggerElectric(cm, inserted);
ensureCursorVisible(cm);
cm.curOp.updateInput = updateInput;
cm.curOp.typing = true;
cm.state.pasteIncoming = cm.state.cutIncoming = false;
}
function handlePaste(e, cm) {
var pasted = e.clipboardData && e.clipboardData.getData("text/plain");
if (pasted) {
e.preventDefault();
if (!isReadOnly(cm) && !cm.options.disableInput)
runInOp(cm, function() { applyTextInput(cm, pasted, 0, null, "paste"); });
return true;
}
}
function triggerElectric(cm, inserted) {
// When an 'electric' character is inserted, immediately trigger a reindent
if (!cm.options.electricChars || !cm.options.smartIndent) return;
var sel = cm.doc.sel;
for (var i = sel.ranges.length - 1; i >= 0; i--) {
var range = sel.ranges[i];
if (range.head.ch > 100 || (i && sel.ranges[i - 1].head.line == range.head.line)) continue;
var mode = cm.getModeAt(range.head);
var indented = false;
if (mode.electricChars) {
for (var j = 0; j < mode.electricChars.length; j++)
if (inserted.indexOf(mode.electricChars.charAt(j)) > -1) {
indented = indentLine(cm, range.head.line, "smart");
break;
}
} else if (mode.electricInput) {
if (mode.electricInput.test(getLine(cm.doc, range.head.line).text.slice(0, range.head.ch)))
indented = indentLine(cm, range.head.line, "smart");
}
if (indented) signalLater(cm, "electricInput", cm, range.head.line);
}
}
function copyableRanges(cm) {
var text = [], ranges = [];
for (var i = 0; i < cm.doc.sel.ranges.length; i++) {
var line = cm.doc.sel.ranges[i].head.line;
var lineRange = {anchor: Pos(line, 0), head: Pos(line + 1, 0)};
ranges.push(lineRange);
text.push(cm.getRange(lineRange.anchor, lineRange.head));
}
return {text: text, ranges: ranges};
}
function disableBrowserMagic(field) {
field.setAttribute("autocorrect", "off");
field.setAttribute("autocapitalize", "off");
field.setAttribute("spellcheck", "false");
}
// TEXTAREA INPUT STYLE
function TextareaInput(cm) {
this.cm = cm;
// See input.poll and input.reset
this.prevInput = "";
// Flag that indicates whether we expect input to appear real soon
// now (after some event like 'keypress' or 'input') and are
// polling intensively.
this.pollingFast = false;
// Self-resetting timeout for the poller
this.polling = new Delayed();
// Tracks when input.reset has punted to just putting a short
// string into the textarea instead of the full selection.
this.inaccurateSelection = false;
// Used to work around IE issue with selection being forgotten when focus moves away from textarea
this.hasSelection = false;
this.composing = null;
};
function hiddenTextarea() {
var te = elt("textarea", null, null, "position: absolute; padding: 0; width: 1px; height: 1em; outline: none");
var div = elt("div", [te], null, "overflow: hidden; position: relative; width: 3px; height: 0px;");
// The textarea is kept positioned near the cursor to prevent the
// fact that it'll be scrolled into view on input from scrolling
// our fake cursor out of view. On webkit, when wrap=off, paste is
// very slow. So make the area wide instead.
if (webkit) te.style.width = "1000px";
else te.setAttribute("wrap", "off");
// If border: 0; -- iOS fails to open keyboard (issue #1287)
if (ios) te.style.border = "1px solid black";
disableBrowserMagic(te);
return div;
}
TextareaInput.prototype = copyObj({
init: function(display) {
var input = this, cm = this.cm;
// Wraps and hides input textarea
var div = this.wrapper = hiddenTextarea();
// The semihidden textarea that is focused when the editor is
// focused, and receives input.
var te = this.textarea = div.firstChild;
display.wrapper.insertBefore(div, display.wrapper.firstChild);
// Needed to hide big blue blinking cursor on Mobile Safari (doesn't seem to work in iOS 8 anymore)
if (ios) te.style.width = "0px";
on(te, "input", function() {
if (ie && ie_version >= 9 && input.hasSelection) input.hasSelection = null;
input.poll();
});
on(te, "paste", function(e) {
if (handlePaste(e, cm)) return true;
cm.state.pasteIncoming = true;
input.fastPoll();
});
function prepareCopyCut(e) {
if (cm.somethingSelected()) {
lastCopied = cm.getSelections();
if (input.inaccurateSelection) {
input.prevInput = "";
input.inaccurateSelection = false;
te.value = lastCopied.join("\n");
selectInput(te);
}
} else if (!cm.options.lineWiseCopyCut) {
return;
} else {
var ranges = copyableRanges(cm);
lastCopied = ranges.text;
if (e.type == "cut") {
cm.setSelections(ranges.ranges, null, sel_dontScroll);
} else {
input.prevInput = "";
te.value = ranges.text.join("\n");
selectInput(te);
}
}
if (e.type == "cut") cm.state.cutIncoming = true;
}
on(te, "cut", prepareCopyCut);
on(te, "copy", prepareCopyCut);
on(display.scroller, "paste", function(e) {
if (eventInWidget(display, e)) return;
cm.state.pasteIncoming = true;
input.focus();
});
// Prevent normal selection in the editor (we handle our own)
on(display.lineSpace, "selectstart", function(e) {
if (!eventInWidget(display, e)) e_preventDefault(e);
});
on(te, "compositionstart", function() {
var start = cm.getCursor("from");
if (input.composing) input.composing.range.clear()
input.composing = {
start: start,
range: cm.markText(start, cm.getCursor("to"), {className: "CodeMirror-composing"})
};
});
on(te, "compositionend", function() {
if (input.composing) {
input.poll();
input.composing.range.clear();
input.composing = null;
}
});
},
prepareSelection: function() {
// Redraw the selection and/or cursor
var cm = this.cm, display = cm.display, doc = cm.doc;
var result = prepareSelection(cm);
// Move the hidden textarea near the cursor to prevent scrolling artifacts
if (cm.options.moveInputWithCursor) {
var headPos = cursorCoords(cm, doc.sel.primary().head, "div");
var wrapOff = display.wrapper.getBoundingClientRect(), lineOff = display.lineDiv.getBoundingClientRect();
result.teTop = Math.max(0, Math.min(display.wrapper.clientHeight - 10,
headPos.top + lineOff.top - wrapOff.top));
result.teLeft = Math.max(0, Math.min(display.wrapper.clientWidth - 10,
headPos.left + lineOff.left - wrapOff.left));
}
return result;
},
showSelection: function(drawn) {
var cm = this.cm, display = cm.display;
removeChildrenAndAdd(display.cursorDiv, drawn.cursors);
removeChildrenAndAdd(display.selectionDiv, drawn.selection);
if (drawn.teTop != null) {
this.wrapper.style.top = drawn.teTop + "px";
this.wrapper.style.left = drawn.teLeft + "px";
}
},
// Reset the input to correspond to the selection (or to be empty,
// when not typing and nothing is selected)
reset: function(typing) {
if (this.contextMenuPending) return;
var minimal, selected, cm = this.cm, doc = cm.doc;
if (cm.somethingSelected()) {
this.prevInput = "";
var range = doc.sel.primary();
minimal = hasCopyEvent &&
(range.to().line - range.from().line > 100 || (selected = cm.getSelection()).length > 1000);
var content = minimal ? "-" : selected || cm.getSelection();
this.textarea.value = content;
if (cm.state.focused) selectInput(this.textarea);
if (ie && ie_version >= 9) this.hasSelection = content;
} else if (!typing) {
this.prevInput = this.textarea.value = "";
if (ie && ie_version >= 9) this.hasSelection = null;
}
this.inaccurateSelection = minimal;
},
getField: function() { return this.textarea; },
supportsTouch: function() { return false; },
focus: function() {
if (this.cm.options.readOnly != "nocursor" && (!mobile || activeElt() != this.textarea)) {
try { this.textarea.focus(); }
catch (e) {} // IE8 will throw if the textarea is display: none or not in DOM
}
},
blur: function() { this.textarea.blur(); },
resetPosition: function() {
this.wrapper.style.top = this.wrapper.style.left = 0;
},
receivedFocus: function() { this.slowPoll(); },
// Poll for input changes, using the normal rate of polling. This
// runs as long as the editor is focused.
slowPoll: function() {
var input = this;
if (input.pollingFast) return;
input.polling.set(this.cm.options.pollInterval, function() {
input.poll();
if (input.cm.state.focused) input.slowPoll();
});
},
// When an event has just come in that is likely to add or change
// something in the input textarea, we poll faster, to ensure that
// the change appears on the screen quickly.
fastPoll: function() {
var missed = false, input = this;
input.pollingFast = true;
function p() {
var changed = input.poll();
if (!changed && !missed) {missed = true; input.polling.set(60, p);}
else {input.pollingFast = false; input.slowPoll();}
}
input.polling.set(20, p);
},
// Read input from the textarea, and update the document to match.
// When something is selected, it is present in the textarea, and
// selected (unless it is huge, in which case a placeholder is
// used). When nothing is selected, the cursor sits after previously
// seen text (can be empty), which is stored in prevInput (we must
// not reset the textarea when typing, because that breaks IME).
poll: function() {
var cm = this.cm, input = this.textarea, prevInput = this.prevInput;
// Since this is called a *lot*, try to bail out as cheaply as
// possible when it is clear that nothing happened. hasSelection
// will be the case when there is a lot of text in the textarea,
// in which case reading its value would be expensive.
if (this.contextMenuPending || !cm.state.focused ||
(hasSelection(input) && !prevInput && !this.composing) ||
isReadOnly(cm) || cm.options.disableInput || cm.state.keySeq)
return false;
var text = input.value;
// If nothing changed, bail.
if (text == prevInput && !cm.somethingSelected()) return false;
// Work around nonsensical selection resetting in IE9/10, and
// inexplicable appearance of private area unicode characters on
// some key combos in Mac (#2689).
if (ie && ie_version >= 9 && this.hasSelection === text ||
mac && /[\uf700-\uf7ff]/.test(text)) {
cm.display.input.reset();
return false;
}
if (cm.doc.sel == cm.display.selForContextMenu) {
var first = text.charCodeAt(0);
if (first == 0x200b && !prevInput) prevInput = "\u200b";
if (first == 0x21da) { this.reset(); return this.cm.execCommand("undo"); }
}
// Find the part of the input that is actually new
var same = 0, l = Math.min(prevInput.length, text.length);
while (same < l && prevInput.charCodeAt(same) == text.charCodeAt(same)) ++same;
var self = this;
runInOp(cm, function() {
applyTextInput(cm, text.slice(same), prevInput.length - same,
null, self.composing ? "*compose" : null);
// Don't leave long text in the textarea, since it makes further polling slow
if (text.length > 1000 || text.indexOf("\n") > -1) input.value = self.prevInput = "";
else self.prevInput = text;
if (self.composing) {
self.composing.range.clear();
self.composing.range = cm.markText(self.composing.start, cm.getCursor("to"),
{className: "CodeMirror-composing"});
}
});
return true;
},
ensurePolled: function() {
if (this.pollingFast && this.poll()) this.pollingFast = false;
},
onKeyPress: function() {
if (ie && ie_version >= 9) this.hasSelection = null;
this.fastPoll();
},
onContextMenu: function(e) {
var input = this, cm = input.cm, display = cm.display, te = input.textarea;
var pos = posFromMouse(cm, e), scrollPos = display.scroller.scrollTop;
if (!pos || presto) return; // Opera is difficult.
// Reset the current text selection only if the click is done outside of the selection
// and 'resetSelectionOnContextMenu' option is true.
var reset = cm.options.resetSelectionOnContextMenu;
if (reset && cm.doc.sel.contains(pos) == -1)
operation(cm, setSelection)(cm.doc, simpleSelection(pos), sel_dontScroll);
var oldCSS = te.style.cssText;
input.wrapper.style.position = "absolute";
te.style.cssText = "position: fixed; width: 30px; height: 30px; top: " + (e.clientY - 5) +
"px; left: " + (e.clientX - 5) + "px; z-index: 1000; background: " +
(ie ? "rgba(255, 255, 255, .05)" : "transparent") +
"; outline: none; border-width: 0; outline: none; overflow: hidden; opacity: .05; filter: alpha(opacity=5);";
if (webkit) var oldScrollY = window.scrollY; // Work around Chrome issue (#2712)
display.input.focus();
if (webkit) window.scrollTo(null, oldScrollY);
display.input.reset();
// Adds "Select all" to context menu in FF
if (!cm.somethingSelected()) te.value = input.prevInput = " ";
input.contextMenuPending = true;
display.selForContextMenu = cm.doc.sel;
clearTimeout(display.detectingSelectAll);
// Select-all will be greyed out if there's nothing to select, so
// this adds a zero-width space so that we can later check whether
// it got selected.
function prepareSelectAllHack() {
if (te.selectionStart != null) {
var selected = cm.somethingSelected();
var extval = "\u200b" + (selected ? te.value : "");
te.value = "\u21da"; // Used to catch context-menu undo
te.value = extval;
input.prevInput = selected ? "" : "\u200b";
te.selectionStart = 1; te.selectionEnd = extval.length;
// Re-set this, in case some other handler touched the
// selection in the meantime.
display.selForContextMenu = cm.doc.sel;
}
}
function rehide() {
input.contextMenuPending = false;
input.wrapper.style.position = "relative";
te.style.cssText = oldCSS;
if (ie && ie_version < 9) display.scrollbars.setScrollTop(display.scroller.scrollTop = scrollPos);
// Try to detect the user choosing select-all
if (te.selectionStart != null) {
if (!ie || (ie && ie_version < 9)) prepareSelectAllHack();
var i = 0, poll = function() {
if (display.selForContextMenu == cm.doc.sel && te.selectionStart == 0 &&
te.selectionEnd > 0 && input.prevInput == "\u200b")
operation(cm, commands.selectAll)(cm);
else if (i++ < 10) display.detectingSelectAll = setTimeout(poll, 500);
else display.input.reset();
};
display.detectingSelectAll = setTimeout(poll, 200);
}
}
if (ie && ie_version >= 9) prepareSelectAllHack();
if (captureRightClick) {
e_stop(e);
var mouseup = function() {
off(window, "mouseup", mouseup);
setTimeout(rehide, 20);
};
on(window, "mouseup", mouseup);
} else {
setTimeout(rehide, 50);
}
},
readOnlyChanged: function(val) {
if (!val) this.reset();
},
setUneditable: nothing,
needsContentAttribute: false
}, TextareaInput.prototype);
// CONTENTEDITABLE INPUT STYLE
function ContentEditableInput(cm) {
this.cm = cm;
this.lastAnchorNode = this.lastAnchorOffset = this.lastFocusNode = this.lastFocusOffset = null;
this.polling = new Delayed();
this.gracePeriod = false;
}
ContentEditableInput.prototype = copyObj({
init: function(display) {
var input = this, cm = input.cm;
var div = input.div = display.lineDiv;
disableBrowserMagic(div);
on(div, "paste", function(e) { handlePaste(e, cm); })
on(div, "compositionstart", function(e) {
var data = e.data;
input.composing = {sel: cm.doc.sel, data: data, startData: data};
if (!data) return;
var prim = cm.doc.sel.primary();
var line = cm.getLine(prim.head.line);
var found = line.indexOf(data, Math.max(0, prim.head.ch - data.length));
if (found > -1 && found <= prim.head.ch)
input.composing.sel = simpleSelection(Pos(prim.head.line, found),
Pos(prim.head.line, found + data.length));
});
on(div, "compositionupdate", function(e) {
input.composing.data = e.data;
});
on(div, "compositionend", function(e) {
var ours = input.composing;
if (!ours) return;
if (e.data != ours.startData && !/\u200b/.test(e.data))
ours.data = e.data;
// Need a small delay to prevent other code (input event,
// selection polling) from doing damage when fired right after
// compositionend.
setTimeout(function() {
if (!ours.handled)
input.applyComposition(ours);
if (input.composing == ours)
input.composing = null;
}, 50);
});
on(div, "touchstart", function() {
input.forceCompositionEnd();
});
on(div, "input", function() {
if (input.composing) return;
if (isReadOnly(cm) || !input.pollContent())
runInOp(input.cm, function() {regChange(cm);});
});
function onCopyCut(e) {
if (cm.somethingSelected()) {
lastCopied = cm.getSelections();
if (e.type == "cut") cm.replaceSelection("", null, "cut");
} else if (!cm.options.lineWiseCopyCut) {
return;
} else {
var ranges = copyableRanges(cm);
lastCopied = ranges.text;
if (e.type == "cut") {
cm.operation(function() {
cm.setSelections(ranges.ranges, 0, sel_dontScroll);
cm.replaceSelection("", null, "cut");
});
}
}
// iOS exposes the clipboard API, but seems to discard content inserted into it
if (e.clipboardData && !ios) {
e.preventDefault();
e.clipboardData.clearData();
e.clipboardData.setData("text/plain", lastCopied.join("\n"));
} else {
// Old-fashioned briefly-focus-a-textarea hack
var kludge = hiddenTextarea(), te = kludge.firstChild;
cm.display.lineSpace.insertBefore(kludge, cm.display.lineSpace.firstChild);
te.value = lastCopied.join("\n");
var hadFocus = document.activeElement;
selectInput(te);
setTimeout(function() {
cm.display.lineSpace.removeChild(kludge);
hadFocus.focus();
}, 50);
}
}
on(div, "copy", onCopyCut);
on(div, "cut", onCopyCut);
},
prepareSelection: function() {
var result = prepareSelection(this.cm, false);
result.focus = this.cm.state.focused;
return result;
},
showSelection: function(info) {
if (!info || !this.cm.display.view.length) return;
if (info.focus) this.showPrimarySelection();
this.showMultipleSelections(info);
},
showPrimarySelection: function() {
var sel = window.getSelection(), prim = this.cm.doc.sel.primary();
var curAnchor = domToPos(this.cm, sel.anchorNode, sel.anchorOffset);
var curFocus = domToPos(this.cm, sel.focusNode, sel.focusOffset);
if (curAnchor && !curAnchor.bad && curFocus && !curFocus.bad &&
cmp(minPos(curAnchor, curFocus), prim.from()) == 0 &&
cmp(maxPos(curAnchor, curFocus), prim.to()) == 0)
return;
var start = posToDOM(this.cm, prim.from());
var end = posToDOM(this.cm, prim.to());
if (!start && !end) return;
var view = this.cm.display.view;
var old = sel.rangeCount && sel.getRangeAt(0);
if (!start) {
start = {node: view[0].measure.map[2], offset: 0};
} else if (!end) { // FIXME dangerously hacky
var measure = view[view.length - 1].measure;
var map = measure.maps ? measure.maps[measure.maps.length - 1] : measure.map;
end = {node: map[map.length - 1], offset: map[map.length - 2] - map[map.length - 3]};
}
try { var rng = range(start.node, start.offset, end.offset, end.node); }
catch(e) {} // Our model of the DOM might be outdated, in which case the range we try to set can be impossible
if (rng) {
sel.removeAllRanges();
sel.addRange(rng);
if (old && sel.anchorNode == null) sel.addRange(old);
else if (gecko) this.startGracePeriod();
}
this.rememberSelection();
},
startGracePeriod: function() {
var input = this;
clearTimeout(this.gracePeriod);
this.gracePeriod = setTimeout(function() {
input.gracePeriod = false;
if (input.selectionChanged())
input.cm.operation(function() { input.cm.curOp.selectionChanged = true; });
}, 20);
},
showMultipleSelections: function(info) {
removeChildrenAndAdd(this.cm.display.cursorDiv, info.cursors);
removeChildrenAndAdd(this.cm.display.selectionDiv, info.selection);
},
rememberSelection: function() {
var sel = window.getSelection();
this.lastAnchorNode = sel.anchorNode; this.lastAnchorOffset = sel.anchorOffset;
this.lastFocusNode = sel.focusNode; this.lastFocusOffset = sel.focusOffset;
},
selectionInEditor: function() {
var sel = window.getSelection();
if (!sel.rangeCount) return false;
var node = sel.getRangeAt(0).commonAncestorContainer;
return contains(this.div, node);
},
focus: function() {
if (this.cm.options.readOnly != "nocursor") this.div.focus();
},
blur: function() { this.div.blur(); },
getField: function() { return this.div; },
supportsTouch: function() { return true; },
receivedFocus: function() {
var input = this;
if (this.selectionInEditor())
this.pollSelection();
else
runInOp(this.cm, function() { input.cm.curOp.selectionChanged = true; });
function poll() {
if (input.cm.state.focused) {
input.pollSelection();
input.polling.set(input.cm.options.pollInterval, poll);
}
}
this.polling.set(this.cm.options.pollInterval, poll);
},
selectionChanged: function() {
var sel = window.getSelection();
return sel.anchorNode != this.lastAnchorNode || sel.anchorOffset != this.lastAnchorOffset ||
sel.focusNode != this.lastFocusNode || sel.focusOffset != this.lastFocusOffset;
},
pollSelection: function() {
if (!this.composing && !this.gracePeriod && this.selectionChanged()) {
var sel = window.getSelection(), cm = this.cm;
this.rememberSelection();
var anchor = domToPos(cm, sel.anchorNode, sel.anchorOffset);
var head = domToPos(cm, sel.focusNode, sel.focusOffset);
if (anchor && head) runInOp(cm, function() {
setSelection(cm.doc, simpleSelection(anchor, head), sel_dontScroll);
if (anchor.bad || head.bad) cm.curOp.selectionChanged = true;
});
}
},
pollContent: function() {
var cm = this.cm, display = cm.display, sel = cm.doc.sel.primary();
var from = sel.from(), to = sel.to();
if (from.line < display.viewFrom || to.line > display.viewTo - 1) return false;
var fromIndex;
if (from.line == display.viewFrom || (fromIndex = findViewIndex(cm, from.line)) == 0) {
var fromLine = lineNo(display.view[0].line);
var fromNode = display.view[0].node;
} else {
var fromLine = lineNo(display.view[fromIndex].line);
var fromNode = display.view[fromIndex - 1].node.nextSibling;
}
var toIndex = findViewIndex(cm, to.line);
if (toIndex == display.view.length - 1) {
var toLine = display.viewTo - 1;
var toNode = display.lineDiv.lastChild;
} else {
var toLine = lineNo(display.view[toIndex + 1].line) - 1;
var toNode = display.view[toIndex + 1].node.previousSibling;
}
var newText = cm.doc.splitLines(domTextBetween(cm, fromNode, toNode, fromLine, toLine));
var oldText = getBetween(cm.doc, Pos(fromLine, 0), Pos(toLine, getLine(cm.doc, toLine).text.length));
while (newText.length > 1 && oldText.length > 1) {
if (lst(newText) == lst(oldText)) { newText.pop(); oldText.pop(); toLine--; }
else if (newText[0] == oldText[0]) { newText.shift(); oldText.shift(); fromLine++; }
else break;
}
var cutFront = 0, cutEnd = 0;
var newTop = newText[0], oldTop = oldText[0], maxCutFront = Math.min(newTop.length, oldTop.length);
while (cutFront < maxCutFront && newTop.charCodeAt(cutFront) == oldTop.charCodeAt(cutFront))
++cutFront;
var newBot = lst(newText), oldBot = lst(oldText);
var maxCutEnd = Math.min(newBot.length - (newText.length == 1 ? cutFront : 0),
oldBot.length - (oldText.length == 1 ? cutFront : 0));
while (cutEnd < maxCutEnd &&
newBot.charCodeAt(newBot.length - cutEnd - 1) == oldBot.charCodeAt(oldBot.length - cutEnd - 1))
++cutEnd;
newText[newText.length - 1] = newBot.slice(0, newBot.length - cutEnd);
newText[0] = newText[0].slice(cutFront);
var chFrom = Pos(fromLine, cutFront);
var chTo = Pos(toLine, oldText.length ? lst(oldText).length - cutEnd : 0);
if (newText.length > 1 || newText[0] || cmp(chFrom, chTo)) {
replaceRange(cm.doc, newText, chFrom, chTo, "+input");
return true;
}
},
ensurePolled: function() {
this.forceCompositionEnd();
},
reset: function() {
this.forceCompositionEnd();
},
forceCompositionEnd: function() {
if (!this.composing || this.composing.handled) return;
this.applyComposition(this.composing);
this.composing.handled = true;
this.div.blur();
this.div.focus();
},
applyComposition: function(composing) {
if (isReadOnly(this.cm))
operation(this.cm, regChange)(this.cm)
else if (composing.data && composing.data != composing.startData)
operation(this.cm, applyTextInput)(this.cm, composing.data, 0, composing.sel);
},
setUneditable: function(node) {
node.contentEditable = "false"
},
onKeyPress: function(e) {
e.preventDefault();
if (!isReadOnly(this.cm))
operation(this.cm, applyTextInput)(this.cm, String.fromCharCode(e.charCode == null ? e.keyCode : e.charCode), 0);
},
readOnlyChanged: function(val) {
this.div.contentEditable = String(val != "nocursor")
},
onContextMenu: nothing,
resetPosition: nothing,
needsContentAttribute: true
}, ContentEditableInput.prototype);
function posToDOM(cm, pos) {
var view = findViewForLine(cm, pos.line);
if (!view || view.hidden) return null;
var line = getLine(cm.doc, pos.line);
var info = mapFromLineView(view, line, pos.line);
var order = getOrder(line), side = "left";
if (order) {
var partPos = getBidiPartAt(order, pos.ch);
side = partPos % 2 ? "right" : "left";
}
var result = nodeAndOffsetInLineMap(info.map, pos.ch, side);
result.offset = result.collapse == "right" ? result.end : result.start;
return result;
}
function badPos(pos, bad) { if (bad) pos.bad = true; return pos; }
function domToPos(cm, node, offset) {
var lineNode;
if (node == cm.display.lineDiv) {
lineNode = cm.display.lineDiv.childNodes[offset];
if (!lineNode) return badPos(cm.clipPos(Pos(cm.display.viewTo - 1)), true);
node = null; offset = 0;
} else {
for (lineNode = node;; lineNode = lineNode.parentNode) {
if (!lineNode || lineNode == cm.display.lineDiv) return null;
if (lineNode.parentNode && lineNode.parentNode == cm.display.lineDiv) break;
}
}
for (var i = 0; i < cm.display.view.length; i++) {
var lineView = cm.display.view[i];
if (lineView.node == lineNode)
return locateNodeInLineView(lineView, node, offset);
}
}
function locateNodeInLineView(lineView, node, offset) {
var wrapper = lineView.text.firstChild, bad = false;
if (!node || !contains(wrapper, node)) return badPos(Pos(lineNo(lineView.line), 0), true);
if (node == wrapper) {
bad = true;
node = wrapper.childNodes[offset];
offset = 0;
if (!node) {
var line = lineView.rest ? lst(lineView.rest) : lineView.line;
return badPos(Pos(lineNo(line), line.text.length), bad);
}
}
var textNode = node.nodeType == 3 ? node : null, topNode = node;
if (!textNode && node.childNodes.length == 1 && node.firstChild.nodeType == 3) {
textNode = node.firstChild;
if (offset) offset = textNode.nodeValue.length;
}
while (topNode.parentNode != wrapper) topNode = topNode.parentNode;
var measure = lineView.measure, maps = measure.maps;
function find(textNode, topNode, offset) {
for (var i = -1; i < (maps ? maps.length : 0); i++) {
var map = i < 0 ? measure.map : maps[i];
for (var j = 0; j < map.length; j += 3) {
var curNode = map[j + 2];
if (curNode == textNode || curNode == topNode) {
var line = lineNo(i < 0 ? lineView.line : lineView.rest[i]);
var ch = map[j] + offset;
if (offset < 0 || curNode != textNode) ch = map[j + (offset ? 1 : 0)];
return Pos(line, ch);
}
}
}
}
var found = find(textNode, topNode, offset);
if (found) return badPos(found, bad);
// FIXME this is all really shaky. might handle the few cases it needs to handle, but likely to cause problems
for (var after = topNode.nextSibling, dist = textNode ? textNode.nodeValue.length - offset : 0; after; after = after.nextSibling) {
found = find(after, after.firstChild, 0);
if (found)
return badPos(Pos(found.line, found.ch - dist), bad);
else
dist += after.textContent.length;
}
for (var before = topNode.previousSibling, dist = offset; before; before = before.previousSibling) {
found = find(before, before.firstChild, -1);
if (found)
return badPos(Pos(found.line, found.ch + dist), bad);
else
dist += after.textContent.length;
}
}
function domTextBetween(cm, from, to, fromLine, toLine) {
var text = "", closing = false, lineSep = cm.doc.lineSeparator();
function recognizeMarker(id) { return function(marker) { return marker.id == id; }; }
function walk(node) {
if (node.nodeType == 1) {
var cmText = node.getAttribute("cm-text");
if (cmText != null) {
if (cmText == "") cmText = node.textContent.replace(/\u200b/g, "");
text += cmText;
return;
}
var markerID = node.getAttribute("cm-marker"), range;
if (markerID) {
var found = cm.findMarks(Pos(fromLine, 0), Pos(toLine + 1, 0), recognizeMarker(+markerID));
if (found.length && (range = found[0].find()))
text += getBetween(cm.doc, range.from, range.to).join(lineSep);
return;
}
if (node.getAttribute("contenteditable") == "false") return;
for (var i = 0; i < node.childNodes.length; i++)
walk(node.childNodes[i]);
if (/^(pre|div|p)$/i.test(node.nodeName))
closing = true;
} else if (node.nodeType == 3) {
var val = node.nodeValue;
if (!val) return;
if (closing) {
text += lineSep;
closing = false;
}
text += val;
}
}
for (;;) {
walk(from);
if (from == to) break;
from = from.nextSibling;
}
return text;
}
CodeMirror.inputStyles = {"textarea": TextareaInput, "contenteditable": ContentEditableInput};
// SELECTION / CURSOR
// Selection objects are immutable. A new one is created every time
// the selection changes. A selection is one or more non-overlapping
// (and non-touching) ranges, sorted, and an integer that indicates
// which one is the primary selection (the one that's scrolled into
// view, that getCursor returns, etc).
function Selection(ranges, primIndex) {
this.ranges = ranges;
this.primIndex = primIndex;
}
Selection.prototype = {
primary: function() { return this.ranges[this.primIndex]; },
equals: function(other) {
if (other == this) return true;
if (other.primIndex != this.primIndex || other.ranges.length != this.ranges.length) return false;
for (var i = 0; i < this.ranges.length; i++) {
var here = this.ranges[i], there = other.ranges[i];
if (cmp(here.anchor, there.anchor) != 0 || cmp(here.head, there.head) != 0) return false;
}
return true;
},
deepCopy: function() {
for (var out = [], i = 0; i < this.ranges.length; i++)
out[i] = new Range(copyPos(this.ranges[i].anchor), copyPos(this.ranges[i].head));
return new Selection(out, this.primIndex);
},
somethingSelected: function() {
for (var i = 0; i < this.ranges.length; i++)
if (!this.ranges[i].empty()) return true;
return false;
},
contains: function(pos, end) {
if (!end) end = pos;
for (var i = 0; i < this.ranges.length; i++) {
var range = this.ranges[i];
if (cmp(end, range.from()) >= 0 && cmp(pos, range.to()) <= 0)
return i;
}
return -1;
}
};
function Range(anchor, head) {
this.anchor = anchor; this.head = head;
}
Range.prototype = {
from: function() { return minPos(this.anchor, this.head); },
to: function() { return maxPos(this.anchor, this.head); },
empty: function() {
return this.head.line == this.anchor.line && this.head.ch == this.anchor.ch;
}
};
// Take an unsorted, potentially overlapping set of ranges, and
// build a selection out of it. 'Consumes' ranges array (modifying
// it).
function normalizeSelection(ranges, primIndex) {
var prim = ranges[primIndex];
ranges.sort(function(a, b) { return cmp(a.from(), b.from()); });
primIndex = indexOf(ranges, prim);
for (var i = 1; i < ranges.length; i++) {
var cur = ranges[i], prev = ranges[i - 1];
if (cmp(prev.to(), cur.from()) >= 0) {
var from = minPos(prev.from(), cur.from()), to = maxPos(prev.to(), cur.to());
var inv = prev.empty() ? cur.from() == cur.head : prev.from() == prev.head;
if (i <= primIndex) --primIndex;
ranges.splice(--i, 2, new Range(inv ? to : from, inv ? from : to));
}
}
return new Selection(ranges, primIndex);
}
function simpleSelection(anchor, head) {
return new Selection([new Range(anchor, head || anchor)], 0);
}
// Most of the external API clips given positions to make sure they
// actually exist within the document.
function clipLine(doc, n) {return Math.max(doc.first, Math.min(n, doc.first + doc.size - 1));}
function clipPos(doc, pos) {
if (pos.line < doc.first) return Pos(doc.first, 0);
var last = doc.first + doc.size - 1;
if (pos.line > last) return Pos(last, getLine(doc, last).text.length);
return clipToLen(pos, getLine(doc, pos.line).text.length);
}
function clipToLen(pos, linelen) {
var ch = pos.ch;
if (ch == null || ch > linelen) return Pos(pos.line, linelen);
else if (ch < 0) return Pos(pos.line, 0);
else return pos;
}
function isLine(doc, l) {return l >= doc.first && l < doc.first + doc.size;}
function clipPosArray(doc, array) {
for (var out = [], i = 0; i < array.length; i++) out[i] = clipPos(doc, array[i]);
return out;
}
// SELECTION UPDATES
// The 'scroll' parameter given to many of these indicated whether
// the new cursor position should be scrolled into view after
// modifying the selection.
// If shift is held or the extend flag is set, extends a range to
// include a given position (and optionally a second position).
// Otherwise, simply returns the range between the given positions.
// Used for cursor motion and such.
function extendRange(doc, range, head, other) {
if (doc.cm && doc.cm.display.shift || doc.extend) {
var anchor = range.anchor;
if (other) {
var posBefore = cmp(head, anchor) < 0;
if (posBefore != (cmp(other, anchor) < 0)) {
anchor = head;
head = other;
} else if (posBefore != (cmp(head, other) < 0)) {
head = other;
}
}
return new Range(anchor, head);
} else {
return new Range(other || head, head);
}
}
// Extend the primary selection range, discard the rest.
function extendSelection(doc, head, other, options) {
setSelection(doc, new Selection([extendRange(doc, doc.sel.primary(), head, other)], 0), options);
}
// Extend all selections (pos is an array of selections with length
// equal the number of selections)
function extendSelections(doc, heads, options) {
for (var out = [], i = 0; i < doc.sel.ranges.length; i++)
out[i] = extendRange(doc, doc.sel.ranges[i], heads[i], null);
var newSel = normalizeSelection(out, doc.sel.primIndex);
setSelection(doc, newSel, options);
}
// Updates a single range in the selection.
function replaceOneSelection(doc, i, range, options) {
var ranges = doc.sel.ranges.slice(0);
ranges[i] = range;
setSelection(doc, normalizeSelection(ranges, doc.sel.primIndex), options);
}
// Reset the selection to a single range.
function setSimpleSelection(doc, anchor, head, options) {
setSelection(doc, simpleSelection(anchor, head), options);
}
// Give beforeSelectionChange handlers a change to influence a
// selection update.
function filterSelectionChange(doc, sel) {
var obj = {
ranges: sel.ranges,
update: function(ranges) {
this.ranges = [];
for (var i = 0; i < ranges.length; i++)
this.ranges[i] = new Range(clipPos(doc, ranges[i].anchor),
clipPos(doc, ranges[i].head));
}
};
signal(doc, "beforeSelectionChange", doc, obj);
if (doc.cm) signal(doc.cm, "beforeSelectionChange", doc.cm, obj);
if (obj.ranges != sel.ranges) return normalizeSelection(obj.ranges, obj.ranges.length - 1);
else return sel;
}
function setSelectionReplaceHistory(doc, sel, options) {
var done = doc.history.done, last = lst(done);
if (last && last.ranges) {
done[done.length - 1] = sel;
setSelectionNoUndo(doc, sel, options);
} else {
setSelection(doc, sel, options);
}
}
// Set a new selection.
function setSelection(doc, sel, options) {
setSelectionNoUndo(doc, sel, options);
addSelectionToHistory(doc, doc.sel, doc.cm ? doc.cm.curOp.id : NaN, options);
}
function setSelectionNoUndo(doc, sel, options) {
if (hasHandler(doc, "beforeSelectionChange") || doc.cm && hasHandler(doc.cm, "beforeSelectionChange"))
sel = filterSelectionChange(doc, sel);
var bias = options && options.bias ||
(cmp(sel.primary().head, doc.sel.primary().head) < 0 ? -1 : 1);
setSelectionInner(doc, skipAtomicInSelection(doc, sel, bias, true));
if (!(options && options.scroll === false) && doc.cm)
ensureCursorVisible(doc.cm);
}
function setSelectionInner(doc, sel) {
if (sel.equals(doc.sel)) return;
doc.sel = sel;
if (doc.cm) {
doc.cm.curOp.updateInput = doc.cm.curOp.selectionChanged = true;
signalCursorActivity(doc.cm);
}
signalLater(doc, "cursorActivity", doc);
}
// Verify that the selection does not partially select any atomic
// marked ranges.
function reCheckSelection(doc) {
setSelectionInner(doc, skipAtomicInSelection(doc, doc.sel, null, false), sel_dontScroll);
}
// Return a selection that does not partially select any atomic
// ranges.
function skipAtomicInSelection(doc, sel, bias, mayClear) {
var out;
for (var i = 0; i < sel.ranges.length; i++) {
var range = sel.ranges[i];
var newAnchor = skipAtomic(doc, range.anchor, bias, mayClear);
var newHead = skipAtomic(doc, range.head, bias, mayClear);
if (out || newAnchor != range.anchor || newHead != range.head) {
if (!out) out = sel.ranges.slice(0, i);
out[i] = new Range(newAnchor, newHead);
}
}
return out ? normalizeSelection(out, sel.primIndex) : sel;
}
// Ensure a given position is not inside an atomic range.
function skipAtomic(doc, pos, bias, mayClear) {
var flipped = false, curPos = pos;
var dir = bias || 1;
doc.cantEdit = false;
search: for (;;) {
var line = getLine(doc, curPos.line);
if (line.markedSpans) {
for (var i = 0; i < line.markedSpans.length; ++i) {
var sp = line.markedSpans[i], m = sp.marker;
if ((sp.from == null || (m.inclusiveLeft ? sp.from <= curPos.ch : sp.from < curPos.ch)) &&
(sp.to == null || (m.inclusiveRight ? sp.to >= curPos.ch : sp.to > curPos.ch))) {
if (mayClear) {
signal(m, "beforeCursorEnter");
if (m.explicitlyCleared) {
if (!line.markedSpans) break;
else {--i; continue;}
}
}
if (!m.atomic) continue;
var newPos = m.find(dir < 0 ? -1 : 1);
if (cmp(newPos, curPos) == 0) {
newPos.ch += dir;
if (newPos.ch < 0) {
if (newPos.line > doc.first) newPos = clipPos(doc, Pos(newPos.line - 1));
else newPos = null;
} else if (newPos.ch > line.text.length) {
if (newPos.line < doc.first + doc.size - 1) newPos = Pos(newPos.line + 1, 0);
else newPos = null;
}
if (!newPos) {
if (flipped) {
// Driven in a corner -- no valid cursor position found at all
// -- try again *with* clearing, if we didn't already
if (!mayClear) return skipAtomic(doc, pos, bias, true);
// Otherwise, turn off editing until further notice, and return the start of the doc
doc.cantEdit = true;
return Pos(doc.first, 0);
}
flipped = true; newPos = pos; dir = -dir;
}
}
curPos = newPos;
continue search;
}
}
}
return curPos;
}
}
// SELECTION DRAWING
function updateSelection(cm) {
cm.display.input.showSelection(cm.display.input.prepareSelection());
}
function prepareSelection(cm, primary) {
var doc = cm.doc, result = {};
var curFragment = result.cursors = document.createDocumentFragment();
var selFragment = result.selection = document.createDocumentFragment();
for (var i = 0; i < doc.sel.ranges.length; i++) {
if (primary === false && i == doc.sel.primIndex) continue;
var range = doc.sel.ranges[i];
var collapsed = range.empty();
if (collapsed || cm.options.showCursorWhenSelecting)
drawSelectionCursor(cm, range.head, curFragment);
if (!collapsed)
drawSelectionRange(cm, range, selFragment);
}
return result;
}
// Draws a cursor for the given range
function drawSelectionCursor(cm, head, output) {
var pos = cursorCoords(cm, head, "div", null, null, !cm.options.singleCursorHeightPerLine);
var cursor = output.appendChild(elt("div", "\u00a0", "CodeMirror-cursor"));
cursor.style.left = pos.left + "px";
cursor.style.top = pos.top + "px";
cursor.style.height = Math.max(0, pos.bottom - pos.top) * cm.options.cursorHeight + "px";
if (pos.other) {
// Secondary cursor, shown when on a 'jump' in bi-directional text
var otherCursor = output.appendChild(elt("div", "\u00a0", "CodeMirror-cursor CodeMirror-secondarycursor"));
otherCursor.style.display = "";
otherCursor.style.left = pos.other.left + "px";
otherCursor.style.top = pos.other.top + "px";
otherCursor.style.height = (pos.other.bottom - pos.other.top) * .85 + "px";
}
}
// Draws the given range as a highlighted selection
function drawSelectionRange(cm, range, output) {
var display = cm.display, doc = cm.doc;
var fragment = document.createDocumentFragment();
var padding = paddingH(cm.display), leftSide = padding.left;
var rightSide = Math.max(display.sizerWidth, displayWidth(cm) - display.sizer.offsetLeft) - padding.right;
function add(left, top, width, bottom) {
if (top < 0) top = 0;
top = Math.round(top);
bottom = Math.round(bottom);
fragment.appendChild(elt("div", null, "CodeMirror-selected", "position: absolute; left: " + left +
"px; top: " + top + "px; width: " + (width == null ? rightSide - left : width) +
"px; height: " + (bottom - top) + "px"));
}
function drawForLine(line, fromArg, toArg) {
var lineObj = getLine(doc, line);
var lineLen = lineObj.text.length;
var start, end;
function coords(ch, bias) {
return charCoords(cm, Pos(line, ch), "div", lineObj, bias);
}
iterateBidiSections(getOrder(lineObj), fromArg || 0, toArg == null ? lineLen : toArg, function(from, to, dir) {
var leftPos = coords(from, "left"), rightPos, left, right;
if (from == to) {
rightPos = leftPos;
left = right = leftPos.left;
} else {
rightPos = coords(to - 1, "right");
if (dir == "rtl") { var tmp = leftPos; leftPos = rightPos; rightPos = tmp; }
left = leftPos.left;
right = rightPos.right;
}
if (fromArg == null && from == 0) left = leftSide;
if (rightPos.top - leftPos.top > 3) { // Different lines, draw top part
add(left, leftPos.top, null, leftPos.bottom);
left = leftSide;
if (leftPos.bottom < rightPos.top) add(left, leftPos.bottom, null, rightPos.top);
}
if (toArg == null && to == lineLen) right = rightSide;
if (!start || leftPos.top < start.top || leftPos.top == start.top && leftPos.left < start.left)
start = leftPos;
if (!end || rightPos.bottom > end.bottom || rightPos.bottom == end.bottom && rightPos.right > end.right)
end = rightPos;
if (left < leftSide + 1) left = leftSide;
add(left, rightPos.top, right - left, rightPos.bottom);
});
return {start: start, end: end};
}
var sFrom = range.from(), sTo = range.to();
if (sFrom.line == sTo.line) {
drawForLine(sFrom.line, sFrom.ch, sTo.ch);
} else {
var fromLine = getLine(doc, sFrom.line), toLine = getLine(doc, sTo.line);
var singleVLine = visualLine(fromLine) == visualLine(toLine);
var leftEnd = drawForLine(sFrom.line, sFrom.ch, singleVLine ? fromLine.text.length + 1 : null).end;
var rightStart = drawForLine(sTo.line, singleVLine ? 0 : null, sTo.ch).start;
if (singleVLine) {
if (leftEnd.top < rightStart.top - 2) {
add(leftEnd.right, leftEnd.top, null, leftEnd.bottom);
add(leftSide, rightStart.top, rightStart.left, rightStart.bottom);
} else {
add(leftEnd.right, leftEnd.top, rightStart.left - leftEnd.right, leftEnd.bottom);
}
}
if (leftEnd.bottom < rightStart.top)
add(leftSide, leftEnd.bottom, null, rightStart.top);
}
output.appendChild(fragment);
}
// Cursor-blinking
function restartBlink(cm) {
if (!cm.state.focused) return;
var display = cm.display;
clearInterval(display.blinker);
var on = true;
display.cursorDiv.style.visibility = "";
if (cm.options.cursorBlinkRate > 0)
display.blinker = setInterval(function() {
display.cursorDiv.style.visibility = (on = !on) ? "" : "hidden";
}, cm.options.cursorBlinkRate);
else if (cm.options.cursorBlinkRate < 0)
display.cursorDiv.style.visibility = "hidden";
}
// HIGHLIGHT WORKER
function startWorker(cm, time) {
if (cm.doc.mode.startState && cm.doc.frontier < cm.display.viewTo)
cm.state.highlight.set(time, bind(highlightWorker, cm));
}
function highlightWorker(cm) {
var doc = cm.doc;
if (doc.frontier < doc.first) doc.frontier = doc.first;
if (doc.frontier >= cm.display.viewTo) return;
var end = +new Date + cm.options.workTime;
var state = copyState(doc.mode, getStateBefore(cm, doc.frontier));
var changedLines = [];
doc.iter(doc.frontier, Math.min(doc.first + doc.size, cm.display.viewTo + 500), function(line) {
if (doc.frontier >= cm.display.viewFrom) { // Visible
var oldStyles = line.styles, tooLong = line.text.length > cm.options.maxHighlightLength;
var highlighted = highlightLine(cm, line, tooLong ? copyState(doc.mode, state) : state, true);
line.styles = highlighted.styles;
var oldCls = line.styleClasses, newCls = highlighted.classes;
if (newCls) line.styleClasses = newCls;
else if (oldCls) line.styleClasses = null;
var ischange = !oldStyles || oldStyles.length != line.styles.length ||
oldCls != newCls && (!oldCls || !newCls || oldCls.bgClass != newCls.bgClass || oldCls.textClass != newCls.textClass);
for (var i = 0; !ischange && i < oldStyles.length; ++i) ischange = oldStyles[i] != line.styles[i];
if (ischange) changedLines.push(doc.frontier);
line.stateAfter = tooLong ? state : copyState(doc.mode, state);
} else {
if (line.text.length <= cm.options.maxHighlightLength)
processLine(cm, line.text, state);
line.stateAfter = doc.frontier % 5 == 0 ? copyState(doc.mode, state) : null;
}
++doc.frontier;
if (+new Date > end) {
startWorker(cm, cm.options.workDelay);
return true;
}
});
if (changedLines.length) runInOp(cm, function() {
for (var i = 0; i < changedLines.length; i++)
regLineChange(cm, changedLines[i], "text");
});
}
// Finds the line to start with when starting a parse. Tries to
// find a line with a stateAfter, so that it can start with a
// valid state. If that fails, it returns the line with the
// smallest indentation, which tends to need the least context to
// parse correctly.
function findStartLine(cm, n, precise) {
var minindent, minline, doc = cm.doc;
var lim = precise ? -1 : n - (cm.doc.mode.innerMode ? 1000 : 100);
for (var search = n; search > lim; --search) {
if (search <= doc.first) return doc.first;
var line = getLine(doc, search - 1);
if (line.stateAfter && (!precise || search <= doc.frontier)) return search;
var indented = countColumn(line.text, null, cm.options.tabSize);
if (minline == null || minindent > indented) {
minline = search - 1;
minindent = indented;
}
}
return minline;
}
function getStateBefore(cm, n, precise) {
var doc = cm.doc, display = cm.display;
if (!doc.mode.startState) return true;
var pos = findStartLine(cm, n, precise), state = pos > doc.first && getLine(doc, pos-1).stateAfter;
if (!state) state = startState(doc.mode);
else state = copyState(doc.mode, state);
doc.iter(pos, n, function(line) {
processLine(cm, line.text, state);
var save = pos == n - 1 || pos % 5 == 0 || pos >= display.viewFrom && pos < display.viewTo;
line.stateAfter = save ? copyState(doc.mode, state) : null;
++pos;
});
if (precise) doc.frontier = pos;
return state;
}
// POSITION MEASUREMENT
function paddingTop(display) {return display.lineSpace.offsetTop;}
function paddingVert(display) {return display.mover.offsetHeight - display.lineSpace.offsetHeight;}
function paddingH(display) {
if (display.cachedPaddingH) return display.cachedPaddingH;
var e = removeChildrenAndAdd(display.measure, elt("pre", "x"));
var style = window.getComputedStyle ? window.getComputedStyle(e) : e.currentStyle;
var data = {left: parseInt(style.paddingLeft), right: parseInt(style.paddingRight)};
if (!isNaN(data.left) && !isNaN(data.right)) display.cachedPaddingH = data;
return data;
}
function scrollGap(cm) { return scrollerGap - cm.display.nativeBarWidth; }
function displayWidth(cm) {
return cm.display.scroller.clientWidth - scrollGap(cm) - cm.display.barWidth;
}
function displayHeight(cm) {
return cm.display.scroller.clientHeight - scrollGap(cm) - cm.display.barHeight;
}
// Ensure the lineView.wrapping.heights array is populated. This is
// an array of bottom offsets for the lines that make up a drawn
// line. When lineWrapping is on, there might be more than one
// height.
function ensureLineHeights(cm, lineView, rect) {
var wrapping = cm.options.lineWrapping;
var curWidth = wrapping && displayWidth(cm);
if (!lineView.measure.heights || wrapping && lineView.measure.width != curWidth) {
var heights = lineView.measure.heights = [];
if (wrapping) {
lineView.measure.width = curWidth;
var rects = lineView.text.firstChild.getClientRects();
for (var i = 0; i < rects.length - 1; i++) {
var cur = rects[i], next = rects[i + 1];
if (Math.abs(cur.bottom - next.bottom) > 2)
heights.push((cur.bottom + next.top) / 2 - rect.top);
}
}
heights.push(rect.bottom - rect.top);
}
}
// Find a line map (mapping character offsets to text nodes) and a
// measurement cache for the given line number. (A line view might
// contain multiple lines when collapsed ranges are present.)
function mapFromLineView(lineView, line, lineN) {
if (lineView.line == line)
return {map: lineView.measure.map, cache: lineView.measure.cache};
for (var i = 0; i < lineView.rest.length; i++)
if (lineView.rest[i] == line)
return {map: lineView.measure.maps[i], cache: lineView.measure.caches[i]};
for (var i = 0; i < lineView.rest.length; i++)
if (lineNo(lineView.rest[i]) > lineN)
return {map: lineView.measure.maps[i], cache: lineView.measure.caches[i], before: true};
}
// Render a line into the hidden node display.externalMeasured. Used
// when measurement is needed for a line that's not in the viewport.
function updateExternalMeasurement(cm, line) {
line = visualLine(line);
var lineN = lineNo(line);
var view = cm.display.externalMeasured = new LineView(cm.doc, line, lineN);
view.lineN = lineN;
var built = view.built = buildLineContent(cm, view);
view.text = built.pre;
removeChildrenAndAdd(cm.display.lineMeasure, built.pre);
return view;
}
// Get a {top, bottom, left, right} box (in line-local coordinates)
// for a given character.
function measureChar(cm, line, ch, bias) {
return measureCharPrepared(cm, prepareMeasureForLine(cm, line), ch, bias);
}
// Find a line view that corresponds to the given line number.
function findViewForLine(cm, lineN) {
if (lineN >= cm.display.viewFrom && lineN < cm.display.viewTo)
return cm.display.view[findViewIndex(cm, lineN)];
var ext = cm.display.externalMeasured;
if (ext && lineN >= ext.lineN && lineN < ext.lineN + ext.size)
return ext;
}
// Measurement can be split in two steps, the set-up work that
// applies to the whole line, and the measurement of the actual
// character. Functions like coordsChar, that need to do a lot of
// measurements in a row, can thus ensure that the set-up work is
// only done once.
function prepareMeasureForLine(cm, line) {
var lineN = lineNo(line);
var view = findViewForLine(cm, lineN);
if (view && !view.text) {
view = null;
} else if (view && view.changes) {
updateLineForChanges(cm, view, lineN, getDimensions(cm));
cm.curOp.forceUpdate = true;
}
if (!view)
view = updateExternalMeasurement(cm, line);
var info = mapFromLineView(view, line, lineN);
return {
line: line, view: view, rect: null,
map: info.map, cache: info.cache, before: info.before,
hasHeights: false
};
}
// Given a prepared measurement object, measures the position of an
// actual character (or fetches it from the cache).
function measureCharPrepared(cm, prepared, ch, bias, varHeight) {
if (prepared.before) ch = -1;
var key = ch + (bias || ""), found;
if (prepared.cache.hasOwnProperty(key)) {
found = prepared.cache[key];
} else {
if (!prepared.rect)
prepared.rect = prepared.view.text.getBoundingClientRect();
if (!prepared.hasHeights) {
ensureLineHeights(cm, prepared.view, prepared.rect);
prepared.hasHeights = true;
}
found = measureCharInner(cm, prepared, ch, bias);
if (!found.bogus) prepared.cache[key] = found;
}
return {left: found.left, right: found.right,
top: varHeight ? found.rtop : found.top,
bottom: varHeight ? found.rbottom : found.bottom};
}
var nullRect = {left: 0, right: 0, top: 0, bottom: 0};
function nodeAndOffsetInLineMap(map, ch, bias) {
var node, start, end, collapse;
// First, search the line map for the text node corresponding to,
// or closest to, the target character.
for (var i = 0; i < map.length; i += 3) {
var mStart = map[i], mEnd = map[i + 1];
if (ch < mStart) {
start = 0; end = 1;
collapse = "left";
} else if (ch < mEnd) {
start = ch - mStart;
end = start + 1;
} else if (i == map.length - 3 || ch == mEnd && map[i + 3] > ch) {
end = mEnd - mStart;
start = end - 1;
if (ch >= mEnd) collapse = "right";
}
if (start != null) {
node = map[i + 2];
if (mStart == mEnd && bias == (node.insertLeft ? "left" : "right"))
collapse = bias;
if (bias == "left" && start == 0)
while (i && map[i - 2] == map[i - 3] && map[i - 1].insertLeft) {
node = map[(i -= 3) + 2];
collapse = "left";
}
if (bias == "right" && start == mEnd - mStart)
while (i < map.length - 3 && map[i + 3] == map[i + 4] && !map[i + 5].insertLeft) {
node = map[(i += 3) + 2];
collapse = "right";
}
break;
}
}
return {node: node, start: start, end: end, collapse: collapse, coverStart: mStart, coverEnd: mEnd};
}
function measureCharInner(cm, prepared, ch, bias) {
var place = nodeAndOffsetInLineMap(prepared.map, ch, bias);
var node = place.node, start = place.start, end = place.end, collapse = place.collapse;
var rect;
if (node.nodeType == 3) { // If it is a text node, use a range to retrieve the coordinates.
for (var i = 0; i < 4; i++) { // Retry a maximum of 4 times when nonsense rectangles are returned
while (start && isExtendingChar(prepared.line.text.charAt(place.coverStart + start))) --start;
while (place.coverStart + end < place.coverEnd && isExtendingChar(prepared.line.text.charAt(place.coverStart + end))) ++end;
if (ie && ie_version < 9 && start == 0 && end == place.coverEnd - place.coverStart) {
rect = node.parentNode.getBoundingClientRect();
} else if (ie && cm.options.lineWrapping) {
var rects = range(node, start, end).getClientRects();
if (rects.length)
rect = rects[bias == "right" ? rects.length - 1 : 0];
else
rect = nullRect;
} else {
rect = range(node, start, end).getBoundingClientRect() || nullRect;
}
if (rect.left || rect.right || start == 0) break;
end = start;
start = start - 1;
collapse = "right";
}
if (ie && ie_version < 11) rect = maybeUpdateRectForZooming(cm.display.measure, rect);
} else { // If it is a widget, simply get the box for the whole widget.
if (start > 0) collapse = bias = "right";
var rects;
if (cm.options.lineWrapping && (rects = node.getClientRects()).length > 1)
rect = rects[bias == "right" ? rects.length - 1 : 0];
else
rect = node.getBoundingClientRect();
}
if (ie && ie_version < 9 && !start && (!rect || !rect.left && !rect.right)) {
var rSpan = node.parentNode.getClientRects()[0];
if (rSpan)
rect = {left: rSpan.left, right: rSpan.left + charWidth(cm.display), top: rSpan.top, bottom: rSpan.bottom};
else
rect = nullRect;
}
var rtop = rect.top - prepared.rect.top, rbot = rect.bottom - prepared.rect.top;
var mid = (rtop + rbot) / 2;
var heights = prepared.view.measure.heights;
for (var i = 0; i < heights.length - 1; i++)
if (mid < heights[i]) break;
var top = i ? heights[i - 1] : 0, bot = heights[i];
var result = {left: (collapse == "right" ? rect.right : rect.left) - prepared.rect.left,
right: (collapse == "left" ? rect.left : rect.right) - prepared.rect.left,
top: top, bottom: bot};
if (!rect.left && !rect.right) result.bogus = true;
if (!cm.options.singleCursorHeightPerLine) { result.rtop = rtop; result.rbottom = rbot; }
return result;
}
// Work around problem with bounding client rects on ranges being
// returned incorrectly when zoomed on IE10 and below.
function maybeUpdateRectForZooming(measure, rect) {
if (!window.screen || screen.logicalXDPI == null ||
screen.logicalXDPI == screen.deviceXDPI || !hasBadZoomedRects(measure))
return rect;
var scaleX = screen.logicalXDPI / screen.deviceXDPI;
var scaleY = screen.logicalYDPI / screen.deviceYDPI;
return {left: rect.left * scaleX, right: rect.right * scaleX,
top: rect.top * scaleY, bottom: rect.bottom * scaleY};
}
function clearLineMeasurementCacheFor(lineView) {
if (lineView.measure) {
lineView.measure.cache = {};
lineView.measure.heights = null;
if (lineView.rest) for (var i = 0; i < lineView.rest.length; i++)
lineView.measure.caches[i] = {};
}
}
function clearLineMeasurementCache(cm) {
cm.display.externalMeasure = null;
removeChildren(cm.display.lineMeasure);
for (var i = 0; i < cm.display.view.length; i++)
clearLineMeasurementCacheFor(cm.display.view[i]);
}
function clearCaches(cm) {
clearLineMeasurementCache(cm);
cm.display.cachedCharWidth = cm.display.cachedTextHeight = cm.display.cachedPaddingH = null;
if (!cm.options.lineWrapping) cm.display.maxLineChanged = true;
cm.display.lineNumChars = null;
}
function pageScrollX() { return window.pageXOffset || (document.documentElement || document.body).scrollLeft; }
function pageScrollY() { return window.pageYOffset || (document.documentElement || document.body).scrollTop; }
// Converts a {top, bottom, left, right} box from line-local
// coordinates into another coordinate system. Context may be one of
// "line", "div" (display.lineDiv), "local"/null (editor), "window",
// or "page".
function intoCoordSystem(cm, lineObj, rect, context) {
if (lineObj.widgets) for (var i = 0; i < lineObj.widgets.length; ++i) if (lineObj.widgets[i].above) {
var size = widgetHeight(lineObj.widgets[i]);
rect.top += size; rect.bottom += size;
}
if (context == "line") return rect;
if (!context) context = "local";
var yOff = heightAtLine(lineObj);
if (context == "local") yOff += paddingTop(cm.display);
else yOff -= cm.display.viewOffset;
if (context == "page" || context == "window") {
var lOff = cm.display.lineSpace.getBoundingClientRect();
yOff += lOff.top + (context == "window" ? 0 : pageScrollY());
var xOff = lOff.left + (context == "window" ? 0 : pageScrollX());
rect.left += xOff; rect.right += xOff;
}
rect.top += yOff; rect.bottom += yOff;
return rect;
}
// Coverts a box from "div" coords to another coordinate system.
// Context may be "window", "page", "div", or "local"/null.
function fromCoordSystem(cm, coords, context) {
if (context == "div") return coords;
var left = coords.left, top = coords.top;
// First move into "page" coordinate system
if (context == "page") {
left -= pageScrollX();
top -= pageScrollY();
} else if (context == "local" || !context) {
var localBox = cm.display.sizer.getBoundingClientRect();
left += localBox.left;
top += localBox.top;
}
var lineSpaceBox = cm.display.lineSpace.getBoundingClientRect();
return {left: left - lineSpaceBox.left, top: top - lineSpaceBox.top};
}
function charCoords(cm, pos, context, lineObj, bias) {
if (!lineObj) lineObj = getLine(cm.doc, pos.line);
return intoCoordSystem(cm, lineObj, measureChar(cm, lineObj, pos.ch, bias), context);
}
// Returns a box for a given cursor position, which may have an
// 'other' property containing the position of the secondary cursor
// on a bidi boundary.
function cursorCoords(cm, pos, context, lineObj, preparedMeasure, varHeight) {
lineObj = lineObj || getLine(cm.doc, pos.line);
if (!preparedMeasure) preparedMeasure = prepareMeasureForLine(cm, lineObj);
function get(ch, right) {
var m = measureCharPrepared(cm, preparedMeasure, ch, right ? "right" : "left", varHeight);
if (right) m.left = m.right; else m.right = m.left;
return intoCoordSystem(cm, lineObj, m, context);
}
function getBidi(ch, partPos) {
var part = order[partPos], right = part.level % 2;
if (ch == bidiLeft(part) && partPos && part.level < order[partPos - 1].level) {
part = order[--partPos];
ch = bidiRight(part) - (part.level % 2 ? 0 : 1);
right = true;
} else if (ch == bidiRight(part) && partPos < order.length - 1 && part.level < order[partPos + 1].level) {
part = order[++partPos];
ch = bidiLeft(part) - part.level % 2;
right = false;
}
if (right && ch == part.to && ch > part.from) return get(ch - 1);
return get(ch, right);
}
var order = getOrder(lineObj), ch = pos.ch;
if (!order) return get(ch);
var partPos = getBidiPartAt(order, ch);
var val = getBidi(ch, partPos);
if (bidiOther != null) val.other = getBidi(ch, bidiOther);
return val;
}
// Used to cheaply estimate the coordinates for a position. Used for
// intermediate scroll updates.
function estimateCoords(cm, pos) {
var left = 0, pos = clipPos(cm.doc, pos);
if (!cm.options.lineWrapping) left = charWidth(cm.display) * pos.ch;
var lineObj = getLine(cm.doc, pos.line);
var top = heightAtLine(lineObj) + paddingTop(cm.display);
return {left: left, right: left, top: top, bottom: top + lineObj.height};
}
// Positions returned by coordsChar contain some extra information.
// xRel is the relative x position of the input coordinates compared
// to the found position (so xRel > 0 means the coordinates are to
// the right of the character position, for example). When outside
// is true, that means the coordinates lie outside the line's
// vertical range.
function PosWithInfo(line, ch, outside, xRel) {
var pos = Pos(line, ch);
pos.xRel = xRel;
if (outside) pos.outside = true;
return pos;
}
// Compute the character position closest to the given coordinates.
// Input must be lineSpace-local ("div" coordinate system).
function coordsChar(cm, x, y) {
var doc = cm.doc;
y += cm.display.viewOffset;
if (y < 0) return PosWithInfo(doc.first, 0, true, -1);
var lineN = lineAtHeight(doc, y), last = doc.first + doc.size - 1;
if (lineN > last)
return PosWithInfo(doc.first + doc.size - 1, getLine(doc, last).text.length, true, 1);
if (x < 0) x = 0;
var lineObj = getLine(doc, lineN);
for (;;) {
var found = coordsCharInner(cm, lineObj, lineN, x, y);
var merged = collapsedSpanAtEnd(lineObj);
var mergedPos = merged && merged.find(0, true);
if (merged && (found.ch > mergedPos.from.ch || found.ch == mergedPos.from.ch && found.xRel > 0))
lineN = lineNo(lineObj = mergedPos.to.line);
else
return found;
}
}
function coordsCharInner(cm, lineObj, lineNo, x, y) {
var innerOff = y - heightAtLine(lineObj);
var wrongLine = false, adjust = 2 * cm.display.wrapper.clientWidth;
var preparedMeasure = prepareMeasureForLine(cm, lineObj);
function getX(ch) {
var sp = cursorCoords(cm, Pos(lineNo, ch), "line", lineObj, preparedMeasure);
wrongLine = true;
if (innerOff > sp.bottom) return sp.left - adjust;
else if (innerOff < sp.top) return sp.left + adjust;
else wrongLine = false;
return sp.left;
}
var bidi = getOrder(lineObj), dist = lineObj.text.length;
var from = lineLeft(lineObj), to = lineRight(lineObj);
var fromX = getX(from), fromOutside = wrongLine, toX = getX(to), toOutside = wrongLine;
if (x > toX) return PosWithInfo(lineNo, to, toOutside, 1);
// Do a binary search between these bounds.
for (;;) {
if (bidi ? to == from || to == moveVisually(lineObj, from, 1) : to - from <= 1) {
var ch = x < fromX || x - fromX <= toX - x ? from : to;
var xDiff = x - (ch == from ? fromX : toX);
while (isExtendingChar(lineObj.text.charAt(ch))) ++ch;
var pos = PosWithInfo(lineNo, ch, ch == from ? fromOutside : toOutside,
xDiff < -1 ? -1 : xDiff > 1 ? 1 : 0);
return pos;
}
var step = Math.ceil(dist / 2), middle = from + step;
if (bidi) {
middle = from;
for (var i = 0; i < step; ++i) middle = moveVisually(lineObj, middle, 1);
}
var middleX = getX(middle);
if (middleX > x) {to = middle; toX = middleX; if (toOutside = wrongLine) toX += 1000; dist = step;}
else {from = middle; fromX = middleX; fromOutside = wrongLine; dist -= step;}
}
}
var measureText;
// Compute the default text height.
function textHeight(display) {
if (display.cachedTextHeight != null) return display.cachedTextHeight;
if (measureText == null) {
measureText = elt("pre");
// Measure a bunch of lines, for browsers that compute
// fractional heights.
for (var i = 0; i < 49; ++i) {
measureText.appendChild(document.createTextNode("x"));
measureText.appendChild(elt("br"));
}
measureText.appendChild(document.createTextNode("x"));
}
removeChildrenAndAdd(display.measure, measureText);
var height = measureText.offsetHeight / 50;
if (height > 3) display.cachedTextHeight = height;
removeChildren(display.measure);
return height || 1;
}
// Compute the default character width.
function charWidth(display) {
if (display.cachedCharWidth != null) return display.cachedCharWidth;
var anchor = elt("span", "xxxxxxxxxx");
var pre = elt("pre", [anchor]);
removeChildrenAndAdd(display.measure, pre);
var rect = anchor.getBoundingClientRect(), width = (rect.right - rect.left) / 10;
if (width > 2) display.cachedCharWidth = width;
return width || 10;
}
// OPERATIONS
// Operations are used to wrap a series of changes to the editor
// state in such a way that each change won't have to update the
// cursor and display (which would be awkward, slow, and
// error-prone). Instead, display updates are batched and then all
// combined and executed at once.
var operationGroup = null;
var nextOpId = 0;
// Start a new operation.
function startOperation(cm) {
cm.curOp = {
cm: cm,
viewChanged: false, // Flag that indicates that lines might need to be redrawn
startHeight: cm.doc.height, // Used to detect need to update scrollbar
forceUpdate: false, // Used to force a redraw
updateInput: null, // Whether to reset the input textarea
typing: false, // Whether this reset should be careful to leave existing text (for compositing)
changeObjs: null, // Accumulated changes, for firing change events
cursorActivityHandlers: null, // Set of handlers to fire cursorActivity on
cursorActivityCalled: 0, // Tracks which cursorActivity handlers have been called already
selectionChanged: false, // Whether the selection needs to be redrawn
updateMaxLine: false, // Set when the widest line needs to be determined anew
scrollLeft: null, scrollTop: null, // Intermediate scroll position, not pushed to DOM yet
scrollToPos: null, // Used to scroll to a specific position
focus: false,
id: ++nextOpId // Unique ID
};
if (operationGroup) {
operationGroup.ops.push(cm.curOp);
} else {
cm.curOp.ownsGroup = operationGroup = {
ops: [cm.curOp],
delayedCallbacks: []
};
}
}
function fireCallbacksForOps(group) {
// Calls delayed callbacks and cursorActivity handlers until no
// new ones appear
var callbacks = group.delayedCallbacks, i = 0;
do {
for (; i < callbacks.length; i++)
callbacks[i].call(null);
for (var j = 0; j < group.ops.length; j++) {
var op = group.ops[j];
if (op.cursorActivityHandlers)
while (op.cursorActivityCalled < op.cursorActivityHandlers.length)
op.cursorActivityHandlers[op.cursorActivityCalled++].call(null, op.cm);
}
} while (i < callbacks.length);
}
// Finish an operation, updating the display and signalling delayed events
function endOperation(cm) {
var op = cm.curOp, group = op.ownsGroup;
if (!group) return;
try { fireCallbacksForOps(group); }
finally {
operationGroup = null;
for (var i = 0; i < group.ops.length; i++)
group.ops[i].cm.curOp = null;
endOperations(group);
}
}
// The DOM updates done when an operation finishes are batched so
// that the minimum number of relayouts are required.
function endOperations(group) {
var ops = group.ops;
for (var i = 0; i < ops.length; i++) // Read DOM
endOperation_R1(ops[i]);
for (var i = 0; i < ops.length; i++) // Write DOM (maybe)
endOperation_W1(ops[i]);
for (var i = 0; i < ops.length; i++) // Read DOM
endOperation_R2(ops[i]);
for (var i = 0; i < ops.length; i++) // Write DOM (maybe)
endOperation_W2(ops[i]);
for (var i = 0; i < ops.length; i++) // Read DOM
endOperation_finish(ops[i]);
}
function endOperation_R1(op) {
var cm = op.cm, display = cm.display;
maybeClipScrollbars(cm);
if (op.updateMaxLine) findMaxLine(cm);
op.mustUpdate = op.viewChanged || op.forceUpdate || op.scrollTop != null ||
op.scrollToPos && (op.scrollToPos.from.line < display.viewFrom ||
op.scrollToPos.to.line >= display.viewTo) ||
display.maxLineChanged && cm.options.lineWrapping;
op.update = op.mustUpdate &&
new DisplayUpdate(cm, op.mustUpdate && {top: op.scrollTop, ensure: op.scrollToPos}, op.forceUpdate);
}
function endOperation_W1(op) {
op.updatedDisplay = op.mustUpdate && updateDisplayIfNeeded(op.cm, op.update);
}
function endOperation_R2(op) {
var cm = op.cm, display = cm.display;
if (op.updatedDisplay) updateHeightsInViewport(cm);
op.barMeasure = measureForScrollbars(cm);
// If the max line changed since it was last measured, measure it,
// and ensure the document's width matches it.
// updateDisplay_W2 will use these properties to do the actual resizing
if (display.maxLineChanged && !cm.options.lineWrapping) {
op.adjustWidthTo = measureChar(cm, display.maxLine, display.maxLine.text.length).left + 3;
cm.display.sizerWidth = op.adjustWidthTo;
op.barMeasure.scrollWidth =
Math.max(display.scroller.clientWidth, display.sizer.offsetLeft + op.adjustWidthTo + scrollGap(cm) + cm.display.barWidth);
op.maxScrollLeft = Math.max(0, display.sizer.offsetLeft + op.adjustWidthTo - displayWidth(cm));
}
if (op.updatedDisplay || op.selectionChanged)
op.preparedSelection = display.input.prepareSelection();
}
function endOperation_W2(op) {
var cm = op.cm;
if (op.adjustWidthTo != null) {
cm.display.sizer.style.minWidth = op.adjustWidthTo + "px";
if (op.maxScrollLeft < cm.doc.scrollLeft)
setScrollLeft(cm, Math.min(cm.display.scroller.scrollLeft, op.maxScrollLeft), true);
cm.display.maxLineChanged = false;
}
if (op.preparedSelection)
cm.display.input.showSelection(op.preparedSelection);
if (op.updatedDisplay)
setDocumentHeight(cm, op.barMeasure);
if (op.updatedDisplay || op.startHeight != cm.doc.height)
updateScrollbars(cm, op.barMeasure);
if (op.selectionChanged) restartBlink(cm);
if (cm.state.focused && op.updateInput)
cm.display.input.reset(op.typing);
if (op.focus && op.focus == activeElt()) ensureFocus(op.cm);
}
function endOperation_finish(op) {
var cm = op.cm, display = cm.display, doc = cm.doc;
if (op.updatedDisplay) postUpdateDisplay(cm, op.update);
// Abort mouse wheel delta measurement, when scrolling explicitly
if (display.wheelStartX != null && (op.scrollTop != null || op.scrollLeft != null || op.scrollToPos))
display.wheelStartX = display.wheelStartY = null;
// Propagate the scroll position to the actual DOM scroller
if (op.scrollTop != null && (display.scroller.scrollTop != op.scrollTop || op.forceScroll)) {
doc.scrollTop = Math.max(0, Math.min(display.scroller.scrollHeight - display.scroller.clientHeight, op.scrollTop));
display.scrollbars.setScrollTop(doc.scrollTop);
display.scroller.scrollTop = doc.scrollTop;
}
if (op.scrollLeft != null && (display.scroller.scrollLeft != op.scrollLeft || op.forceScroll)) {
doc.scrollLeft = Math.max(0, Math.min(display.scroller.scrollWidth - displayWidth(cm), op.scrollLeft));
display.scrollbars.setScrollLeft(doc.scrollLeft);
display.scroller.scrollLeft = doc.scrollLeft;
alignHorizontally(cm);
}
// If we need to scroll a specific position into view, do so.
if (op.scrollToPos) {
var coords = scrollPosIntoView(cm, clipPos(doc, op.scrollToPos.from),
clipPos(doc, op.scrollToPos.to), op.scrollToPos.margin);
if (op.scrollToPos.isCursor && cm.state.focused) maybeScrollWindow(cm, coords);
}
// Fire events for markers that are hidden/unidden by editing or
// undoing
var hidden = op.maybeHiddenMarkers, unhidden = op.maybeUnhiddenMarkers;
if (hidden) for (var i = 0; i < hidden.length; ++i)
if (!hidden[i].lines.length) signal(hidden[i], "hide");
if (unhidden) for (var i = 0; i < unhidden.length; ++i)
if (unhidden[i].lines.length) signal(unhidden[i], "unhide");
if (display.wrapper.offsetHeight)
doc.scrollTop = cm.display.scroller.scrollTop;
// Fire change events, and delayed event handlers
if (op.changeObjs)
signal(cm, "changes", cm, op.changeObjs);
if (op.update)
op.update.finish();
}
// Run the given function in an operation
function runInOp(cm, f) {
if (cm.curOp) return f();
startOperation(cm);
try { return f(); }
finally { endOperation(cm); }
}
// Wraps a function in an operation. Returns the wrapped function.
function operation(cm, f) {
return function() {
if (cm.curOp) return f.apply(cm, arguments);
startOperation(cm);
try { return f.apply(cm, arguments); }
finally { endOperation(cm); }
};
}
// Used to add methods to editor and doc instances, wrapping them in
// operations.
function methodOp(f) {
return function() {
if (this.curOp) return f.apply(this, arguments);
startOperation(this);
try { return f.apply(this, arguments); }
finally { endOperation(this); }
};
}
function docMethodOp(f) {
return function() {
var cm = this.cm;
if (!cm || cm.curOp) return f.apply(this, arguments);
startOperation(cm);
try { return f.apply(this, arguments); }
finally { endOperation(cm); }
};
}
// VIEW TRACKING
// These objects are used to represent the visible (currently drawn)
// part of the document. A LineView may correspond to multiple
// logical lines, if those are connected by collapsed ranges.
function LineView(doc, line, lineN) {
// The starting line
this.line = line;
// Continuing lines, if any
this.rest = visualLineContinued(line);
// Number of logical lines in this visual line
this.size = this.rest ? lineNo(lst(this.rest)) - lineN + 1 : 1;
this.node = this.text = null;
this.hidden = lineIsHidden(doc, line);
}
// Create a range of LineView objects for the given lines.
function buildViewArray(cm, from, to) {
var array = [], nextPos;
for (var pos = from; pos < to; pos = nextPos) {
var view = new LineView(cm.doc, getLine(cm.doc, pos), pos);
nextPos = pos + view.size;
array.push(view);
}
return array;
}
// Updates the display.view data structure for a given change to the
// document. From and to are in pre-change coordinates. Lendiff is
// the amount of lines added or subtracted by the change. This is
// used for changes that span multiple lines, or change the way
// lines are divided into visual lines. regLineChange (below)
// registers single-line changes.
function regChange(cm, from, to, lendiff) {
if (from == null) from = cm.doc.first;
if (to == null) to = cm.doc.first + cm.doc.size;
if (!lendiff) lendiff = 0;
var display = cm.display;
if (lendiff && to < display.viewTo &&
(display.updateLineNumbers == null || display.updateLineNumbers > from))
display.updateLineNumbers = from;
cm.curOp.viewChanged = true;
if (from >= display.viewTo) { // Change after
if (sawCollapsedSpans && visualLineNo(cm.doc, from) < display.viewTo)
resetView(cm);
} else if (to <= display.viewFrom) { // Change before
if (sawCollapsedSpans && visualLineEndNo(cm.doc, to + lendiff) > display.viewFrom) {
resetView(cm);
} else {
display.viewFrom += lendiff;
display.viewTo += lendiff;
}
} else if (from <= display.viewFrom && to >= display.viewTo) { // Full overlap
resetView(cm);
} else if (from <= display.viewFrom) { // Top overlap
var cut = viewCuttingPoint(cm, to, to + lendiff, 1);
if (cut) {
display.view = display.view.slice(cut.index);
display.viewFrom = cut.lineN;
display.viewTo += lendiff;
} else {
resetView(cm);
}
} else if (to >= display.viewTo) { // Bottom overlap
var cut = viewCuttingPoint(cm, from, from, -1);
if (cut) {
display.view = display.view.slice(0, cut.index);
display.viewTo = cut.lineN;
} else {
resetView(cm);
}
} else { // Gap in the middle
var cutTop = viewCuttingPoint(cm, from, from, -1);
var cutBot = viewCuttingPoint(cm, to, to + lendiff, 1);
if (cutTop && cutBot) {
display.view = display.view.slice(0, cutTop.index)
.concat(buildViewArray(cm, cutTop.lineN, cutBot.lineN))
.concat(display.view.slice(cutBot.index));
display.viewTo += lendiff;
} else {
resetView(cm);
}
}
var ext = display.externalMeasured;
if (ext) {
if (to < ext.lineN)
ext.lineN += lendiff;
else if (from < ext.lineN + ext.size)
display.externalMeasured = null;
}
}
// Register a change to a single line. Type must be one of "text",
// "gutter", "class", "widget"
function regLineChange(cm, line, type) {
cm.curOp.viewChanged = true;
var display = cm.display, ext = cm.display.externalMeasured;
if (ext && line >= ext.lineN && line < ext.lineN + ext.size)
display.externalMeasured = null;
if (line < display.viewFrom || line >= display.viewTo) return;
var lineView = display.view[findViewIndex(cm, line)];
if (lineView.node == null) return;
var arr = lineView.changes || (lineView.changes = []);
if (indexOf(arr, type) == -1) arr.push(type);
}
// Clear the view.
function resetView(cm) {
cm.display.viewFrom = cm.display.viewTo = cm.doc.first;
cm.display.view = [];
cm.display.viewOffset = 0;
}
// Find the view element corresponding to a given line. Return null
// when the line isn't visible.
function findViewIndex(cm, n) {
if (n >= cm.display.viewTo) return null;
n -= cm.display.viewFrom;
if (n < 0) return null;
var view = cm.display.view;
for (var i = 0; i < view.length; i++) {
n -= view[i].size;
if (n < 0) return i;
}
}
function viewCuttingPoint(cm, oldN, newN, dir) {
var index = findViewIndex(cm, oldN), diff, view = cm.display.view;
if (!sawCollapsedSpans || newN == cm.doc.first + cm.doc.size)
return {index: index, lineN: newN};
for (var i = 0, n = cm.display.viewFrom; i < index; i++)
n += view[i].size;
if (n != oldN) {
if (dir > 0) {
if (index == view.length - 1) return null;
diff = (n + view[index].size) - oldN;
index++;
} else {
diff = n - oldN;
}
oldN += diff; newN += diff;
}
while (visualLineNo(cm.doc, newN) != newN) {
if (index == (dir < 0 ? 0 : view.length - 1)) return null;
newN += dir * view[index - (dir < 0 ? 1 : 0)].size;
index += dir;
}
return {index: index, lineN: newN};
}
// Force the view to cover a given range, adding empty view element
// or clipping off existing ones as needed.
function adjustView(cm, from, to) {
var display = cm.display, view = display.view;
if (view.length == 0 || from >= display.viewTo || to <= display.viewFrom) {
display.view = buildViewArray(cm, from, to);
display.viewFrom = from;
} else {
if (display.viewFrom > from)
display.view = buildViewArray(cm, from, display.viewFrom).concat(display.view);
else if (display.viewFrom < from)
display.view = display.view.slice(findViewIndex(cm, from));
display.viewFrom = from;
if (display.viewTo < to)
display.view = display.view.concat(buildViewArray(cm, display.viewTo, to));
else if (display.viewTo > to)
display.view = display.view.slice(0, findViewIndex(cm, to));
}
display.viewTo = to;
}
// Count the number of lines in the view whose DOM representation is
// out of date (or nonexistent).
function countDirtyView(cm) {
var view = cm.display.view, dirty = 0;
for (var i = 0; i < view.length; i++) {
var lineView = view[i];
if (!lineView.hidden && (!lineView.node || lineView.changes)) ++dirty;
}
return dirty;
}
// EVENT HANDLERS
// Attach the necessary event handlers when initializing the editor
function registerEventHandlers(cm) {
var d = cm.display;
on(d.scroller, "mousedown", operation(cm, onMouseDown));
// Older IE's will not fire a second mousedown for a double click
if (ie && ie_version < 11)
on(d.scroller, "dblclick", operation(cm, function(e) {
if (signalDOMEvent(cm, e)) return;
var pos = posFromMouse(cm, e);
if (!pos || clickInGutter(cm, e) || eventInWidget(cm.display, e)) return;
e_preventDefault(e);
var word = cm.findWordAt(pos);
extendSelection(cm.doc, word.anchor, word.head);
}));
else
on(d.scroller, "dblclick", function(e) { signalDOMEvent(cm, e) || e_preventDefault(e); });
// Some browsers fire contextmenu *after* opening the menu, at
// which point we can't mess with it anymore. Context menu is
// handled in onMouseDown for these browsers.
if (!captureRightClick) on(d.scroller, "contextmenu", function(e) {onContextMenu(cm, e);});
// Used to suppress mouse event handling when a touch happens
var touchFinished, prevTouch = {end: 0};
function finishTouch() {
if (d.activeTouch) {
touchFinished = setTimeout(function() {d.activeTouch = null;}, 1000);
prevTouch = d.activeTouch;
prevTouch.end = +new Date;
}
};
function isMouseLikeTouchEvent(e) {
if (e.touches.length != 1) return false;
var touch = e.touches[0];
return touch.radiusX <= 1 && touch.radiusY <= 1;
}
function farAway(touch, other) {
if (other.left == null) return true;
var dx = other.left - touch.left, dy = other.top - touch.top;
return dx * dx + dy * dy > 20 * 20;
}
on(d.scroller, "touchstart", function(e) {
if (!isMouseLikeTouchEvent(e)) {
clearTimeout(touchFinished);
var now = +new Date;
d.activeTouch = {start: now, moved: false,
prev: now - prevTouch.end <= 300 ? prevTouch : null};
if (e.touches.length == 1) {
d.activeTouch.left = e.touches[0].pageX;
d.activeTouch.top = e.touches[0].pageY;
}
}
});
on(d.scroller, "touchmove", function() {
if (d.activeTouch) d.activeTouch.moved = true;
});
on(d.scroller, "touchend", function(e) {
var touch = d.activeTouch;
if (touch && !eventInWidget(d, e) && touch.left != null &&
!touch.moved && new Date - touch.start < 300) {
var pos = cm.coordsChar(d.activeTouch, "page"), range;
if (!touch.prev || farAway(touch, touch.prev)) // Single tap
range = new Range(pos, pos);
else if (!touch.prev.prev || farAway(touch, touch.prev.prev)) // Double tap
range = cm.findWordAt(pos);
else // Triple tap
range = new Range(Pos(pos.line, 0), clipPos(cm.doc, Pos(pos.line + 1, 0)));
cm.setSelection(range.anchor, range.head);
cm.focus();
e_preventDefault(e);
}
finishTouch();
});
on(d.scroller, "touchcancel", finishTouch);
// Sync scrolling between fake scrollbars and real scrollable
// area, ensure viewport is updated when scrolling.
on(d.scroller, "scroll", function() {
if (d.scroller.clientHeight) {
setScrollTop(cm, d.scroller.scrollTop);
setScrollLeft(cm, d.scroller.scrollLeft, true);
signal(cm, "scroll", cm);
}
});
// Listen to wheel events in order to try and update the viewport on time.
on(d.scroller, "mousewheel", function(e){onScrollWheel(cm, e);});
on(d.scroller, "DOMMouseScroll", function(e){onScrollWheel(cm, e);});
// Prevent wrapper from ever scrolling
on(d.wrapper, "scroll", function() { d.wrapper.scrollTop = d.wrapper.scrollLeft = 0; });
d.dragFunctions = {
enter: function(e) {if (!signalDOMEvent(cm, e)) e_stop(e);},
over: function(e) {if (!signalDOMEvent(cm, e)) { onDragOver(cm, e); e_stop(e); }},
start: function(e){onDragStart(cm, e);},
drop: operation(cm, onDrop),
leave: function() {clearDragCursor(cm);}
};
var inp = d.input.getField();
on(inp, "keyup", function(e) { onKeyUp.call(cm, e); });
on(inp, "keydown", operation(cm, onKeyDown));
on(inp, "keypress", operation(cm, onKeyPress));
on(inp, "focus", bind(onFocus, cm));
on(inp, "blur", bind(onBlur, cm));
}
function dragDropChanged(cm, value, old) {
var wasOn = old && old != CodeMirror.Init;
if (!value != !wasOn) {
var funcs = cm.display.dragFunctions;
var toggle = value ? on : off;
toggle(cm.display.scroller, "dragstart", funcs.start);
toggle(cm.display.scroller, "dragenter", funcs.enter);
toggle(cm.display.scroller, "dragover", funcs.over);
toggle(cm.display.scroller, "dragleave", funcs.leave);
toggle(cm.display.scroller, "drop", funcs.drop);
}
}
// Called when the window resizes
function onResize(cm) {
var d = cm.display;
if (d.lastWrapHeight == d.wrapper.clientHeight && d.lastWrapWidth == d.wrapper.clientWidth)
return;
// Might be a text scaling operation, clear size caches.
d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null;
d.scrollbarsClipped = false;
cm.setSize();
}
// MOUSE EVENTS
// Return true when the given mouse event happened in a widget
function eventInWidget(display, e) {
for (var n = e_target(e); n != display.wrapper; n = n.parentNode) {
if (!n || (n.nodeType == 1 && n.getAttribute("cm-ignore-events") == "true") ||
(n.parentNode == display.sizer && n != display.mover))
return true;
}
}
// Given a mouse event, find the corresponding position. If liberal
// is false, it checks whether a gutter or scrollbar was clicked,
// and returns null if it was. forRect is used by rectangular
// selections, and tries to estimate a character position even for
// coordinates beyond the right of the text.
function posFromMouse(cm, e, liberal, forRect) {
var display = cm.display;
if (!liberal && e_target(e).getAttribute("cm-not-content") == "true") return null;
var x, y, space = display.lineSpace.getBoundingClientRect();
// Fails unpredictably on IE[67] when mouse is dragged around quickly.
try { x = e.clientX - space.left; y = e.clientY - space.top; }
catch (e) { return null; }
var coords = coordsChar(cm, x, y), line;
if (forRect && coords.xRel == 1 && (line = getLine(cm.doc, coords.line).text).length == coords.ch) {
var colDiff = countColumn(line, line.length, cm.options.tabSize) - line.length;
coords = Pos(coords.line, Math.max(0, Math.round((x - paddingH(cm.display).left) / charWidth(cm.display)) - colDiff));
}
return coords;
}
// A mouse down can be a single click, double click, triple click,
// start of selection drag, start of text drag, new cursor
// (ctrl-click), rectangle drag (alt-drag), or xwin
// middle-click-paste. Or it might be a click on something we should
// not interfere with, such as a scrollbar or widget.
function onMouseDown(e) {
var cm = this, display = cm.display;
if (display.activeTouch && display.input.supportsTouch() || signalDOMEvent(cm, e)) return;
display.shift = e.shiftKey;
if (eventInWidget(display, e)) {
if (!webkit) {
// Briefly turn off draggability, to allow widgets to do
// normal dragging things.
display.scroller.draggable = false;
setTimeout(function(){display.scroller.draggable = true;}, 100);
}
return;
}
if (clickInGutter(cm, e)) return;
var start = posFromMouse(cm, e);
window.focus();
switch (e_button(e)) {
case 1:
// #3261: make sure, that we're not starting a second selection
if (cm.state.selectingText)
cm.state.selectingText(e);
else if (start)
leftButtonDown(cm, e, start);
else if (e_target(e) == display.scroller)
e_preventDefault(e);
break;
case 2:
if (webkit) cm.state.lastMiddleDown = +new Date;
if (start) extendSelection(cm.doc, start);
setTimeout(function() {display.input.focus();}, 20);
e_preventDefault(e);
break;
case 3:
if (captureRightClick) onContextMenu(cm, e);
else delayBlurEvent(cm);
break;
}
}
var lastClick, lastDoubleClick;
function leftButtonDown(cm, e, start) {
if (ie) setTimeout(bind(ensureFocus, cm), 0);
else cm.curOp.focus = activeElt();
var now = +new Date, type;
if (lastDoubleClick && lastDoubleClick.time > now - 400 && cmp(lastDoubleClick.pos, start) == 0) {
type = "triple";
} else if (lastClick && lastClick.time > now - 400 && cmp(lastClick.pos, start) == 0) {
type = "double";
lastDoubleClick = {time: now, pos: start};
} else {
type = "single";
lastClick = {time: now, pos: start};
}
var sel = cm.doc.sel, modifier = mac ? e.metaKey : e.ctrlKey, contained;
if (cm.options.dragDrop && dragAndDrop && !isReadOnly(cm) &&
type == "single" && (contained = sel.contains(start)) > -1 &&
(cmp((contained = sel.ranges[contained]).from(), start) < 0 || start.xRel > 0) &&
(cmp(contained.to(), start) > 0 || start.xRel < 0))
leftButtonStartDrag(cm, e, start, modifier);
else
leftButtonSelect(cm, e, start, type, modifier);
}
// Start a text drag. When it ends, see if any dragging actually
// happen, and treat as a click if it didn't.
function leftButtonStartDrag(cm, e, start, modifier) {
var display = cm.display, startTime = +new Date;
var dragEnd = operation(cm, function(e2) {
if (webkit) display.scroller.draggable = false;
cm.state.draggingText = false;
off(document, "mouseup", dragEnd);
off(display.scroller, "drop", dragEnd);
if (Math.abs(e.clientX - e2.clientX) + Math.abs(e.clientY - e2.clientY) < 10) {
e_preventDefault(e2);
if (!modifier && +new Date - 200 < startTime)
extendSelection(cm.doc, start);
// Work around unexplainable focus problem in IE9 (#2127) and Chrome (#3081)
if (webkit || ie && ie_version == 9)
setTimeout(function() {document.body.focus(); display.input.focus();}, 20);
else
display.input.focus();
}
});
// Let the drag handler handle this.
if (webkit) display.scroller.draggable = true;
cm.state.draggingText = dragEnd;
// IE's approach to draggable
if (display.scroller.dragDrop) display.scroller.dragDrop();
on(document, "mouseup", dragEnd);
on(display.scroller, "drop", dragEnd);
}
// Normal selection, as opposed to text dragging.
function leftButtonSelect(cm, e, start, type, addNew) {
var display = cm.display, doc = cm.doc;
e_preventDefault(e);
var ourRange, ourIndex, startSel = doc.sel, ranges = startSel.ranges;
if (addNew && !e.shiftKey) {
ourIndex = doc.sel.contains(start);
if (ourIndex > -1)
ourRange = ranges[ourIndex];
else
ourRange = new Range(start, start);
} else {
ourRange = doc.sel.primary();
ourIndex = doc.sel.primIndex;
}
if (e.altKey) {
type = "rect";
if (!addNew) ourRange = new Range(start, start);
start = posFromMouse(cm, e, true, true);
ourIndex = -1;
} else if (type == "double") {
var word = cm.findWordAt(start);
if (cm.display.shift || doc.extend)
ourRange = extendRange(doc, ourRange, word.anchor, word.head);
else
ourRange = word;
} else if (type == "triple") {
var line = new Range(Pos(start.line, 0), clipPos(doc, Pos(start.line + 1, 0)));
if (cm.display.shift || doc.extend)
ourRange = extendRange(doc, ourRange, line.anchor, line.head);
else
ourRange = line;
} else {
ourRange = extendRange(doc, ourRange, start);
}
if (!addNew) {
ourIndex = 0;
setSelection(doc, new Selection([ourRange], 0), sel_mouse);
startSel = doc.sel;
} else if (ourIndex == -1) {
ourIndex = ranges.length;
setSelection(doc, normalizeSelection(ranges.concat([ourRange]), ourIndex),
{scroll: false, origin: "*mouse"});
} else if (ranges.length > 1 && ranges[ourIndex].empty() && type == "single" && !e.shiftKey) {
setSelection(doc, normalizeSelection(ranges.slice(0, ourIndex).concat(ranges.slice(ourIndex + 1)), 0),
{scroll: false, origin: "*mouse"});
startSel = doc.sel;
} else {
replaceOneSelection(doc, ourIndex, ourRange, sel_mouse);
}
var lastPos = start;
function extendTo(pos) {
if (cmp(lastPos, pos) == 0) return;
lastPos = pos;
if (type == "rect") {
var ranges = [], tabSize = cm.options.tabSize;
var startCol = countColumn(getLine(doc, start.line).text, start.ch, tabSize);
var posCol = countColumn(getLine(doc, pos.line).text, pos.ch, tabSize);
var left = Math.min(startCol, posCol), right = Math.max(startCol, posCol);
for (var line = Math.min(start.line, pos.line), end = Math.min(cm.lastLine(), Math.max(start.line, pos.line));
line <= end; line++) {
var text = getLine(doc, line).text, leftPos = findColumn(text, left, tabSize);
if (left == right)
ranges.push(new Range(Pos(line, leftPos), Pos(line, leftPos)));
else if (text.length > leftPos)
ranges.push(new Range(Pos(line, leftPos), Pos(line, findColumn(text, right, tabSize))));
}
if (!ranges.length) ranges.push(new Range(start, start));
setSelection(doc, normalizeSelection(startSel.ranges.slice(0, ourIndex).concat(ranges), ourIndex),
{origin: "*mouse", scroll: false});
cm.scrollIntoView(pos);
} else {
var oldRange = ourRange;
var anchor = oldRange.anchor, head = pos;
if (type != "single") {
if (type == "double")
var range = cm.findWordAt(pos);
else
var range = new Range(Pos(pos.line, 0), clipPos(doc, Pos(pos.line + 1, 0)));
if (cmp(range.anchor, anchor) > 0) {
head = range.head;
anchor = minPos(oldRange.from(), range.anchor);
} else {
head = range.anchor;
anchor = maxPos(oldRange.to(), range.head);
}
}
var ranges = startSel.ranges.slice(0);
ranges[ourIndex] = new Range(clipPos(doc, anchor), head);
setSelection(doc, normalizeSelection(ranges, ourIndex), sel_mouse);
}
}
var editorSize = display.wrapper.getBoundingClientRect();
// Used to ensure timeout re-tries don't fire when another extend
// happened in the meantime (clearTimeout isn't reliable -- at
// least on Chrome, the timeouts still happen even when cleared,
// if the clear happens after their scheduled firing time).
var counter = 0;
function extend(e) {
var curCount = ++counter;
var cur = posFromMouse(cm, e, true, type == "rect");
if (!cur) return;
if (cmp(cur, lastPos) != 0) {
cm.curOp.focus = activeElt();
extendTo(cur);
var visible = visibleLines(display, doc);
if (cur.line >= visible.to || cur.line < visible.from)
setTimeout(operation(cm, function(){if (counter == curCount) extend(e);}), 150);
} else {
var outside = e.clientY < editorSize.top ? -20 : e.clientY > editorSize.bottom ? 20 : 0;
if (outside) setTimeout(operation(cm, function() {
if (counter != curCount) return;
display.scroller.scrollTop += outside;
extend(e);
}), 50);
}
}
function done(e) {
cm.state.selectingText = false;
counter = Infinity;
e_preventDefault(e);
display.input.focus();
off(document, "mousemove", move);
off(document, "mouseup", up);
doc.history.lastSelOrigin = null;
}
var move = operation(cm, function(e) {
if (!e_button(e)) done(e);
else extend(e);
});
var up = operation(cm, done);
cm.state.selectingText = up;
on(document, "mousemove", move);
on(document, "mouseup", up);
}
// Determines whether an event happened in the gutter, and fires the
// handlers for the corresponding event.
function gutterEvent(cm, e, type, prevent, signalfn) {
try { var mX = e.clientX, mY = e.clientY; }
catch(e) { return false; }
if (mX >= Math.floor(cm.display.gutters.getBoundingClientRect().right)) return false;
if (prevent) e_preventDefault(e);
var display = cm.display;
var lineBox = display.lineDiv.getBoundingClientRect();
if (mY > lineBox.bottom || !hasHandler(cm, type)) return e_defaultPrevented(e);
mY -= lineBox.top - display.viewOffset;
for (var i = 0; i < cm.options.gutters.length; ++i) {
var g = display.gutters.childNodes[i];
if (g && g.getBoundingClientRect().right >= mX) {
var line = lineAtHeight(cm.doc, mY);
var gutter = cm.options.gutters[i];
signalfn(cm, type, cm, line, gutter, e);
return e_defaultPrevented(e);
}
}
}
function clickInGutter(cm, e) {
return gutterEvent(cm, e, "gutterClick", true, signalLater);
}
// Kludge to work around strange IE behavior where it'll sometimes
// re-fire a series of drag-related events right after the drop (#1551)
var lastDrop = 0;
function onDrop(e) {
var cm = this;
clearDragCursor(cm);
if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e))
return;
e_preventDefault(e);
if (ie) lastDrop = +new Date;
var pos = posFromMouse(cm, e, true), files = e.dataTransfer.files;
if (!pos || isReadOnly(cm)) return;
// Might be a file drop, in which case we simply extract the text
// and insert it.
if (files && files.length && window.FileReader && window.File) {
var n = files.length, text = Array(n), read = 0;
var loadFile = function(file, i) {
var reader = new FileReader;
reader.onload = operation(cm, function() {
text[i] = reader.result;
if (++read == n) {
pos = clipPos(cm.doc, pos);
var change = {from: pos, to: pos,
text: cm.doc.splitLines(text.join(cm.doc.lineSeparator())),
origin: "paste"};
makeChange(cm.doc, change);
setSelectionReplaceHistory(cm.doc, simpleSelection(pos, changeEnd(change)));
}
});
reader.readAsText(file);
};
for (var i = 0; i < n; ++i) loadFile(files[i], i);
} else { // Normal drop
// Don't do a replace if the drop happened inside of the selected text.
if (cm.state.draggingText && cm.doc.sel.contains(pos) > -1) {
cm.state.draggingText(e);
// Ensure the editor is re-focused
setTimeout(function() {cm.display.input.focus();}, 20);
return;
}
try {
var text = e.dataTransfer.getData("Text");
if (text) {
if (cm.state.draggingText && !(mac ? e.altKey : e.ctrlKey))
var selected = cm.listSelections();
setSelectionNoUndo(cm.doc, simpleSelection(pos, pos));
if (selected) for (var i = 0; i < selected.length; ++i)
replaceRange(cm.doc, "", selected[i].anchor, selected[i].head, "drag");
cm.replaceSelection(text, "around", "paste");
cm.display.input.focus();
}
}
catch(e){}
}
}
function onDragStart(cm, e) {
if (ie && (!cm.state.draggingText || +new Date - lastDrop < 100)) { e_stop(e); return; }
if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e)) return;
e.dataTransfer.setData("Text", cm.getSelection());
// Use dummy image instead of default browsers image.
// Recent Safari (~6.0.2) have a tendency to segfault when this happens, so we don't do it there.
if (e.dataTransfer.setDragImage && !safari) {
var img = elt("img", null, null, "position: fixed; left: 0; top: 0;");
img.src = "data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==";
if (presto) {
img.width = img.height = 1;
cm.display.wrapper.appendChild(img);
// Force a relayout, or Opera won't use our image for some obscure reason
img._top = img.offsetTop;
}
e.dataTransfer.setDragImage(img, 0, 0);
if (presto) img.parentNode.removeChild(img);
}
}
function onDragOver(cm, e) {
var pos = posFromMouse(cm, e);
if (!pos) return;
var frag = document.createDocumentFragment();
drawSelectionCursor(cm, pos, frag);
if (!cm.display.dragCursor) {
cm.display.dragCursor = elt("div", null, "CodeMirror-cursors CodeMirror-dragcursors");
cm.display.lineSpace.insertBefore(cm.display.dragCursor, cm.display.cursorDiv);
}
removeChildrenAndAdd(cm.display.dragCursor, frag);
}
function clearDragCursor(cm) {
if (cm.display.dragCursor) {
cm.display.lineSpace.removeChild(cm.display.dragCursor);
cm.display.dragCursor = null;
}
}
// SCROLL EVENTS
// Sync the scrollable area and scrollbars, ensure the viewport
// covers the visible area.
function setScrollTop(cm, val) {
if (Math.abs(cm.doc.scrollTop - val) < 2) return;
cm.doc.scrollTop = val;
if (!gecko) updateDisplaySimple(cm, {top: val});
if (cm.display.scroller.scrollTop != val) cm.display.scroller.scrollTop = val;
cm.display.scrollbars.setScrollTop(val);
if (gecko) updateDisplaySimple(cm);
startWorker(cm, 100);
}
// Sync scroller and scrollbar, ensure the gutter elements are
// aligned.
function setScrollLeft(cm, val, isScroller) {
if (isScroller ? val == cm.doc.scrollLeft : Math.abs(cm.doc.scrollLeft - val) < 2) return;
val = Math.min(val, cm.display.scroller.scrollWidth - cm.display.scroller.clientWidth);
cm.doc.scrollLeft = val;
alignHorizontally(cm);
if (cm.display.scroller.scrollLeft != val) cm.display.scroller.scrollLeft = val;
cm.display.scrollbars.setScrollLeft(val);
}
// Since the delta values reported on mouse wheel events are
// unstandardized between browsers and even browser versions, and
// generally horribly unpredictable, this code starts by measuring
// the scroll effect that the first few mouse wheel events have,
// and, from that, detects the way it can convert deltas to pixel
// offsets afterwards.
//
// The reason we want to know the amount a wheel event will scroll
// is that it gives us a chance to update the display before the
// actual scrolling happens, reducing flickering.
var wheelSamples = 0, wheelPixelsPerUnit = null;
// Fill in a browser-detected starting value on browsers where we
// know one. These don't have to be accurate -- the result of them
// being wrong would just be a slight flicker on the first wheel
// scroll (if it is large enough).
if (ie) wheelPixelsPerUnit = -.53;
else if (gecko) wheelPixelsPerUnit = 15;
else if (chrome) wheelPixelsPerUnit = -.7;
else if (safari) wheelPixelsPerUnit = -1/3;
var wheelEventDelta = function(e) {
var dx = e.wheelDeltaX, dy = e.wheelDeltaY;
if (dx == null && e.detail && e.axis == e.HORIZONTAL_AXIS) dx = e.detail;
if (dy == null && e.detail && e.axis == e.VERTICAL_AXIS) dy = e.detail;
else if (dy == null) dy = e.wheelDelta;
return {x: dx, y: dy};
};
CodeMirror.wheelEventPixels = function(e) {
var delta = wheelEventDelta(e);
delta.x *= wheelPixelsPerUnit;
delta.y *= wheelPixelsPerUnit;
return delta;
};
function onScrollWheel(cm, e) {
var delta = wheelEventDelta(e), dx = delta.x, dy = delta.y;
var display = cm.display, scroll = display.scroller;
// Quit if there's nothing to scroll here
if (!(dx && scroll.scrollWidth > scroll.clientWidth ||
dy && scroll.scrollHeight > scroll.clientHeight)) return;
// Webkit browsers on OS X abort momentum scrolls when the target
// of the scroll event is removed from the scrollable element.
// This hack (see related code in patchDisplay) makes sure the
// element is kept around.
if (dy && mac && webkit) {
outer: for (var cur = e.target, view = display.view; cur != scroll; cur = cur.parentNode) {
for (var i = 0; i < view.length; i++) {
if (view[i].node == cur) {
cm.display.currentWheelTarget = cur;
break outer;
}
}
}
}
// On some browsers, horizontal scrolling will cause redraws to
// happen before the gutter has been realigned, causing it to
// wriggle around in a most unseemly way. When we have an
// estimated pixels/delta value, we just handle horizontal
// scrolling entirely here. It'll be slightly off from native, but
// better than glitching out.
if (dx && !gecko && !presto && wheelPixelsPerUnit != null) {
if (dy)
setScrollTop(cm, Math.max(0, Math.min(scroll.scrollTop + dy * wheelPixelsPerUnit, scroll.scrollHeight - scroll.clientHeight)));
setScrollLeft(cm, Math.max(0, Math.min(scroll.scrollLeft + dx * wheelPixelsPerUnit, scroll.scrollWidth - scroll.clientWidth)));
e_preventDefault(e);
display.wheelStartX = null; // Abort measurement, if in progress
return;
}
// 'Project' the visible viewport to cover the area that is being
// scrolled into view (if we know enough to estimate it).
if (dy && wheelPixelsPerUnit != null) {
var pixels = dy * wheelPixelsPerUnit;
var top = cm.doc.scrollTop, bot = top + display.wrapper.clientHeight;
if (pixels < 0) top = Math.max(0, top + pixels - 50);
else bot = Math.min(cm.doc.height, bot + pixels + 50);
updateDisplaySimple(cm, {top: top, bottom: bot});
}
if (wheelSamples < 20) {
if (display.wheelStartX == null) {
display.wheelStartX = scroll.scrollLeft; display.wheelStartY = scroll.scrollTop;
display.wheelDX = dx; display.wheelDY = dy;
setTimeout(function() {
if (display.wheelStartX == null) return;
var movedX = scroll.scrollLeft - display.wheelStartX;
var movedY = scroll.scrollTop - display.wheelStartY;
var sample = (movedY && display.wheelDY && movedY / display.wheelDY) ||
(movedX && display.wheelDX && movedX / display.wheelDX);
display.wheelStartX = display.wheelStartY = null;
if (!sample) return;
wheelPixelsPerUnit = (wheelPixelsPerUnit * wheelSamples + sample) / (wheelSamples + 1);
++wheelSamples;
}, 200);
} else {
display.wheelDX += dx; display.wheelDY += dy;
}
}
}
// KEY EVENTS
// Run a handler that was bound to a key.
function doHandleBinding(cm, bound, dropShift) {
if (typeof bound == "string") {
bound = commands[bound];
if (!bound) return false;
}
// Ensure previous input has been read, so that the handler sees a
// consistent view of the document
cm.display.input.ensurePolled();
var prevShift = cm.display.shift, done = false;
try {
if (isReadOnly(cm)) cm.state.suppressEdits = true;
if (dropShift) cm.display.shift = false;
done = bound(cm) != Pass;
} finally {
cm.display.shift = prevShift;
cm.state.suppressEdits = false;
}
return done;
}
function lookupKeyForEditor(cm, name, handle) {
for (var i = 0; i < cm.state.keyMaps.length; i++) {
var result = lookupKey(name, cm.state.keyMaps[i], handle, cm);
if (result) return result;
}
return (cm.options.extraKeys && lookupKey(name, cm.options.extraKeys, handle, cm))
|| lookupKey(name, cm.options.keyMap, handle, cm);
}
var stopSeq = new Delayed;
function dispatchKey(cm, name, e, handle) {
var seq = cm.state.keySeq;
if (seq) {
if (isModifierKey(name)) return "handled";
stopSeq.set(50, function() {
if (cm.state.keySeq == seq) {
cm.state.keySeq = null;
cm.display.input.reset();
}
});
name = seq + " " + name;
}
var result = lookupKeyForEditor(cm, name, handle);
if (result == "multi")
cm.state.keySeq = name;
if (result == "handled")
signalLater(cm, "keyHandled", cm, name, e);
if (result == "handled" || result == "multi") {
e_preventDefault(e);
restartBlink(cm);
}
if (seq && !result && /\'$/.test(name)) {
e_preventDefault(e);
return true;
}
return !!result;
}
// Handle a key from the keydown event.
function handleKeyBinding(cm, e) {
var name = keyName(e, true);
if (!name) return false;
if (e.shiftKey && !cm.state.keySeq) {
// First try to resolve full name (including 'Shift-'). Failing
// that, see if there is a cursor-motion command (starting with
// 'go') bound to the keyname without 'Shift-'.
return dispatchKey(cm, "Shift-" + name, e, function(b) {return doHandleBinding(cm, b, true);})
|| dispatchKey(cm, name, e, function(b) {
if (typeof b == "string" ? /^go[A-Z]/.test(b) : b.motion)
return doHandleBinding(cm, b);
});
} else {
return dispatchKey(cm, name, e, function(b) { return doHandleBinding(cm, b); });
}
}
// Handle a key from the keypress event
function handleCharBinding(cm, e, ch) {
return dispatchKey(cm, "'" + ch + "'", e,
function(b) { return doHandleBinding(cm, b, true); });
}
var lastStoppedKey = null;
function onKeyDown(e) {
var cm = this;
cm.curOp.focus = activeElt();
if (signalDOMEvent(cm, e)) return;
// IE does strange things with escape.
if (ie && ie_version < 11 && e.keyCode == 27) e.returnValue = false;
var code = e.keyCode;
cm.display.shift = code == 16 || e.shiftKey;
var handled = handleKeyBinding(cm, e);
if (presto) {
lastStoppedKey = handled ? code : null;
// Opera has no cut event... we try to at least catch the key combo
if (!handled && code == 88 && !hasCopyEvent && (mac ? e.metaKey : e.ctrlKey))
cm.replaceSelection("", null, "cut");
}
// Turn mouse into crosshair when Alt is held on Mac.
if (code == 18 && !/\bCodeMirror-crosshair\b/.test(cm.display.lineDiv.className))
showCrossHair(cm);
}
function showCrossHair(cm) {
var lineDiv = cm.display.lineDiv;
addClass(lineDiv, "CodeMirror-crosshair");
function up(e) {
if (e.keyCode == 18 || !e.altKey) {
rmClass(lineDiv, "CodeMirror-crosshair");
off(document, "keyup", up);
off(document, "mouseover", up);
}
}
on(document, "keyup", up);
on(document, "mouseover", up);
}
function onKeyUp(e) {
if (e.keyCode == 16) this.doc.sel.shift = false;
signalDOMEvent(this, e);
}
function onKeyPress(e) {
var cm = this;
if (eventInWidget(cm.display, e) || signalDOMEvent(cm, e) || e.ctrlKey && !e.altKey || mac && e.metaKey) return;
var keyCode = e.keyCode, charCode = e.charCode;
if (presto && keyCode == lastStoppedKey) {lastStoppedKey = null; e_preventDefault(e); return;}
if ((presto && (!e.which || e.which < 10)) && handleKeyBinding(cm, e)) return;
var ch = String.fromCharCode(charCode == null ? keyCode : charCode);
if (handleCharBinding(cm, e, ch)) return;
cm.display.input.onKeyPress(e);
}
// FOCUS/BLUR EVENTS
function delayBlurEvent(cm) {
cm.state.delayingBlurEvent = true;
setTimeout(function() {
if (cm.state.delayingBlurEvent) {
cm.state.delayingBlurEvent = false;
onBlur(cm);
}
}, 100);
}
function onFocus(cm) {
if (cm.state.delayingBlurEvent) cm.state.delayingBlurEvent = false;
if (cm.options.readOnly == "nocursor") return;
if (!cm.state.focused) {
signal(cm, "focus", cm);
cm.state.focused = true;
addClass(cm.display.wrapper, "CodeMirror-focused");
// This test prevents this from firing when a context
// menu is closed (since the input reset would kill the
// select-all detection hack)
if (!cm.curOp && cm.display.selForContextMenu != cm.doc.sel) {
cm.display.input.reset();
if (webkit) setTimeout(function() { cm.display.input.reset(true); }, 20); // Issue #1730
}
cm.display.input.receivedFocus();
}
restartBlink(cm);
}
function onBlur(cm) {
if (cm.state.delayingBlurEvent) return;
if (cm.state.focused) {
signal(cm, "blur", cm);
cm.state.focused = false;
rmClass(cm.display.wrapper, "CodeMirror-focused");
}
clearInterval(cm.display.blinker);
setTimeout(function() {if (!cm.state.focused) cm.display.shift = false;}, 150);
}
// CONTEXT MENU HANDLING
// To make the context menu work, we need to briefly unhide the
// textarea (making it as unobtrusive as possible) to let the
// right-click take effect on it.
function onContextMenu(cm, e) {
if (eventInWidget(cm.display, e) || contextMenuInGutter(cm, e)) return;
cm.display.input.onContextMenu(e);
}
function contextMenuInGutter(cm, e) {
if (!hasHandler(cm, "gutterContextMenu")) return false;
return gutterEvent(cm, e, "gutterContextMenu", false, signal);
}
// UPDATING
// Compute the position of the end of a change (its 'to' property
// refers to the pre-change end).
var changeEnd = CodeMirror.changeEnd = function(change) {
if (!change.text) return change.to;
return Pos(change.from.line + change.text.length - 1,
lst(change.text).length + (change.text.length == 1 ? change.from.ch : 0));
};
// Adjust a position to refer to the post-change position of the
// same text, or the end of the change if the change covers it.
function adjustForChange(pos, change) {
if (cmp(pos, change.from) < 0) return pos;
if (cmp(pos, change.to) <= 0) return changeEnd(change);
var line = pos.line + change.text.length - (change.to.line - change.from.line) - 1, ch = pos.ch;
if (pos.line == change.to.line) ch += changeEnd(change).ch - change.to.ch;
return Pos(line, ch);
}
function computeSelAfterChange(doc, change) {
var out = [];
for (var i = 0; i < doc.sel.ranges.length; i++) {
var range = doc.sel.ranges[i];
out.push(new Range(adjustForChange(range.anchor, change),
adjustForChange(range.head, change)));
}
return normalizeSelection(out, doc.sel.primIndex);
}
function offsetPos(pos, old, nw) {
if (pos.line == old.line)
return Pos(nw.line, pos.ch - old.ch + nw.ch);
else
return Pos(nw.line + (pos.line - old.line), pos.ch);
}
// Used by replaceSelections to allow moving the selection to the
// start or around the replaced test. Hint may be "start" or "around".
function computeReplacedSel(doc, changes, hint) {
var out = [];
var oldPrev = Pos(doc.first, 0), newPrev = oldPrev;
for (var i = 0; i < changes.length; i++) {
var change = changes[i];
var from = offsetPos(change.from, oldPrev, newPrev);
var to = offsetPos(changeEnd(change), oldPrev, newPrev);
oldPrev = change.to;
newPrev = to;
if (hint == "around") {
var range = doc.sel.ranges[i], inv = cmp(range.head, range.anchor) < 0;
out[i] = new Range(inv ? to : from, inv ? from : to);
} else {
out[i] = new Range(from, from);
}
}
return new Selection(out, doc.sel.primIndex);
}
// Allow "beforeChange" event handlers to influence a change
function filterChange(doc, change, update) {
var obj = {
canceled: false,
from: change.from,
to: change.to,
text: change.text,
origin: change.origin,
cancel: function() { this.canceled = true; }
};
if (update) obj.update = function(from, to, text, origin) {
if (from) this.from = clipPos(doc, from);
if (to) this.to = clipPos(doc, to);
if (text) this.text = text;
if (origin !== undefined) this.origin = origin;
};
signal(doc, "beforeChange", doc, obj);
if (doc.cm) signal(doc.cm, "beforeChange", doc.cm, obj);
if (obj.canceled) return null;
return {from: obj.from, to: obj.to, text: obj.text, origin: obj.origin};
}
// Apply a change to a document, and add it to the document's
// history, and propagating it to all linked documents.
function makeChange(doc, change, ignoreReadOnly) {
if (doc.cm) {
if (!doc.cm.curOp) return operation(doc.cm, makeChange)(doc, change, ignoreReadOnly);
if (doc.cm.state.suppressEdits) return;
}
if (hasHandler(doc, "beforeChange") || doc.cm && hasHandler(doc.cm, "beforeChange")) {
change = filterChange(doc, change, true);
if (!change) return;
}
// Possibly split or suppress the update based on the presence
// of read-only spans in its range.
var split = sawReadOnlySpans && !ignoreReadOnly && removeReadOnlyRanges(doc, change.from, change.to);
if (split) {
for (var i = split.length - 1; i >= 0; --i)
makeChangeInner(doc, {from: split[i].from, to: split[i].to, text: i ? [""] : change.text});
} else {
makeChangeInner(doc, change);
}
}
function makeChangeInner(doc, change) {
if (change.text.length == 1 && change.text[0] == "" && cmp(change.from, change.to) == 0) return;
var selAfter = computeSelAfterChange(doc, change);
addChangeToHistory(doc, change, selAfter, doc.cm ? doc.cm.curOp.id : NaN);
makeChangeSingleDoc(doc, change, selAfter, stretchSpansOverChange(doc, change));
var rebased = [];
linkedDocs(doc, function(doc, sharedHist) {
if (!sharedHist && indexOf(rebased, doc.history) == -1) {
rebaseHist(doc.history, change);
rebased.push(doc.history);
}
makeChangeSingleDoc(doc, change, null, stretchSpansOverChange(doc, change));
});
}
// Revert a change stored in a document's history.
function makeChangeFromHistory(doc, type, allowSelectionOnly) {
if (doc.cm && doc.cm.state.suppressEdits) return;
var hist = doc.history, event, selAfter = doc.sel;
var source = type == "undo" ? hist.done : hist.undone, dest = type == "undo" ? hist.undone : hist.done;
// Verify that there is a useable event (so that ctrl-z won't
// needlessly clear selection events)
for (var i = 0; i < source.length; i++) {
event = source[i];
if (allowSelectionOnly ? event.ranges && !event.equals(doc.sel) : !event.ranges)
break;
}
if (i == source.length) return;
hist.lastOrigin = hist.lastSelOrigin = null;
for (;;) {
event = source.pop();
if (event.ranges) {
pushSelectionToHistory(event, dest);
if (allowSelectionOnly && !event.equals(doc.sel)) {
setSelection(doc, event, {clearRedo: false});
return;
}
selAfter = event;
}
else break;
}
// Build up a reverse change object to add to the opposite history
// stack (redo when undoing, and vice versa).
var antiChanges = [];
pushSelectionToHistory(selAfter, dest);
dest.push({changes: antiChanges, generation: hist.generation});
hist.generation = event.generation || ++hist.maxGeneration;
var filter = hasHandler(doc, "beforeChange") || doc.cm && hasHandler(doc.cm, "beforeChange");
for (var i = event.changes.length - 1; i >= 0; --i) {
var change = event.changes[i];
change.origin = type;
if (filter && !filterChange(doc, change, false)) {
source.length = 0;
return;
}
antiChanges.push(historyChangeFromChange(doc, change));
var after = i ? computeSelAfterChange(doc, change) : lst(source);
makeChangeSingleDoc(doc, change, after, mergeOldSpans(doc, change));
if (!i && doc.cm) doc.cm.scrollIntoView({from: change.from, to: changeEnd(change)});
var rebased = [];
// Propagate to the linked documents
linkedDocs(doc, function(doc, sharedHist) {
if (!sharedHist && indexOf(rebased, doc.history) == -1) {
rebaseHist(doc.history, change);
rebased.push(doc.history);
}
makeChangeSingleDoc(doc, change, null, mergeOldSpans(doc, change));
});
}
}
// Sub-views need their line numbers shifted when text is added
// above or below them in the parent document.
function shiftDoc(doc, distance) {
if (distance == 0) return;
doc.first += distance;
doc.sel = new Selection(map(doc.sel.ranges, function(range) {
return new Range(Pos(range.anchor.line + distance, range.anchor.ch),
Pos(range.head.line + distance, range.head.ch));
}), doc.sel.primIndex);
if (doc.cm) {
regChange(doc.cm, doc.first, doc.first - distance, distance);
for (var d = doc.cm.display, l = d.viewFrom; l < d.viewTo; l++)
regLineChange(doc.cm, l, "gutter");
}
}
// More lower-level change function, handling only a single document
// (not linked ones).
function makeChangeSingleDoc(doc, change, selAfter, spans) {
if (doc.cm && !doc.cm.curOp)
return operation(doc.cm, makeChangeSingleDoc)(doc, change, selAfter, spans);
if (change.to.line < doc.first) {
shiftDoc(doc, change.text.length - 1 - (change.to.line - change.from.line));
return;
}
if (change.from.line > doc.lastLine()) return;
// Clip the change to the size of this doc
if (change.from.line < doc.first) {
var shift = change.text.length - 1 - (doc.first - change.from.line);
shiftDoc(doc, shift);
change = {from: Pos(doc.first, 0), to: Pos(change.to.line + shift, change.to.ch),
text: [lst(change.text)], origin: change.origin};
}
var last = doc.lastLine();
if (change.to.line > last) {
change = {from: change.from, to: Pos(last, getLine(doc, last).text.length),
text: [change.text[0]], origin: change.origin};
}
change.removed = getBetween(doc, change.from, change.to);
if (!selAfter) selAfter = computeSelAfterChange(doc, change);
if (doc.cm) makeChangeSingleDocInEditor(doc.cm, change, spans);
else updateDoc(doc, change, spans);
setSelectionNoUndo(doc, selAfter, sel_dontScroll);
}
// Handle the interaction of a change to a document with the editor
// that this document is part of.
function makeChangeSingleDocInEditor(cm, change, spans) {
var doc = cm.doc, display = cm.display, from = change.from, to = change.to;
var recomputeMaxLength = false, checkWidthStart = from.line;
if (!cm.options.lineWrapping) {
checkWidthStart = lineNo(visualLine(getLine(doc, from.line)));
doc.iter(checkWidthStart, to.line + 1, function(line) {
if (line == display.maxLine) {
recomputeMaxLength = true;
return true;
}
});
}
if (doc.sel.contains(change.from, change.to) > -1)
signalCursorActivity(cm);
updateDoc(doc, change, spans, estimateHeight(cm));
if (!cm.options.lineWrapping) {
doc.iter(checkWidthStart, from.line + change.text.length, function(line) {
var len = lineLength(line);
if (len > display.maxLineLength) {
display.maxLine = line;
display.maxLineLength = len;
display.maxLineChanged = true;
recomputeMaxLength = false;
}
});
if (recomputeMaxLength) cm.curOp.updateMaxLine = true;
}
// Adjust frontier, schedule worker
doc.frontier = Math.min(doc.frontier, from.line);
startWorker(cm, 400);
var lendiff = change.text.length - (to.line - from.line) - 1;
// Remember that these lines changed, for updating the display
if (change.full)
regChange(cm);
else if (from.line == to.line && change.text.length == 1 && !isWholeLineUpdate(cm.doc, change))
regLineChange(cm, from.line, "text");
else
regChange(cm, from.line, to.line + 1, lendiff);
var changesHandler = hasHandler(cm, "changes"), changeHandler = hasHandler(cm, "change");
if (changeHandler || changesHandler) {
var obj = {
from: from, to: to,
text: change.text,
removed: change.removed,
origin: change.origin
};
if (changeHandler) signalLater(cm, "change", cm, obj);
if (changesHandler) (cm.curOp.changeObjs || (cm.curOp.changeObjs = [])).push(obj);
}
cm.display.selForContextMenu = null;
}
function replaceRange(doc, code, from, to, origin) {
if (!to) to = from;
if (cmp(to, from) < 0) { var tmp = to; to = from; from = tmp; }
if (typeof code == "string") code = doc.splitLines(code);
makeChange(doc, {from: from, to: to, text: code, origin: origin});
}
// SCROLLING THINGS INTO VIEW
// If an editor sits on the top or bottom of the window, partially
// scrolled out of view, this ensures that the cursor is visible.
function maybeScrollWindow(cm, coords) {
if (signalDOMEvent(cm, "scrollCursorIntoView")) return;
var display = cm.display, box = display.sizer.getBoundingClientRect(), doScroll = null;
if (coords.top + box.top < 0) doScroll = true;
else if (coords.bottom + box.top > (window.innerHeight || document.documentElement.clientHeight)) doScroll = false;
if (doScroll != null && !phantom) {
var scrollNode = elt("div", "\u200b", null, "position: absolute; top: " +
(coords.top - display.viewOffset - paddingTop(cm.display)) + "px; height: " +
(coords.bottom - coords.top + scrollGap(cm) + display.barHeight) + "px; left: " +
coords.left + "px; width: 2px;");
cm.display.lineSpace.appendChild(scrollNode);
scrollNode.scrollIntoView(doScroll);
cm.display.lineSpace.removeChild(scrollNode);
}
}
// Scroll a given position into view (immediately), verifying that
// it actually became visible (as line heights are accurately
// measured, the position of something may 'drift' during drawing).
function scrollPosIntoView(cm, pos, end, margin) {
if (margin == null) margin = 0;
for (var limit = 0; limit < 5; limit++) {
var changed = false, coords = cursorCoords(cm, pos);
var endCoords = !end || end == pos ? coords : cursorCoords(cm, end);
var scrollPos = calculateScrollPos(cm, Math.min(coords.left, endCoords.left),
Math.min(coords.top, endCoords.top) - margin,
Math.max(coords.left, endCoords.left),
Math.max(coords.bottom, endCoords.bottom) + margin);
var startTop = cm.doc.scrollTop, startLeft = cm.doc.scrollLeft;
if (scrollPos.scrollTop != null) {
setScrollTop(cm, scrollPos.scrollTop);
if (Math.abs(cm.doc.scrollTop - startTop) > 1) changed = true;
}
if (scrollPos.scrollLeft != null) {
setScrollLeft(cm, scrollPos.scrollLeft);
if (Math.abs(cm.doc.scrollLeft - startLeft) > 1) changed = true;
}
if (!changed) break;
}
return coords;
}
// Scroll a given set of coordinates into view (immediately).
function scrollIntoView(cm, x1, y1, x2, y2) {
var scrollPos = calculateScrollPos(cm, x1, y1, x2, y2);
if (scrollPos.scrollTop != null) setScrollTop(cm, scrollPos.scrollTop);
if (scrollPos.scrollLeft != null) setScrollLeft(cm, scrollPos.scrollLeft);
}
// Calculate a new scroll position needed to scroll the given
// rectangle into view. Returns an object with scrollTop and
// scrollLeft properties. When these are undefined, the
// vertical/horizontal position does not need to be adjusted.
function calculateScrollPos(cm, x1, y1, x2, y2) {
var display = cm.display, snapMargin = textHeight(cm.display);
if (y1 < 0) y1 = 0;
var screentop = cm.curOp && cm.curOp.scrollTop != null ? cm.curOp.scrollTop : display.scroller.scrollTop;
var screen = displayHeight(cm), result = {};
if (y2 - y1 > screen) y2 = y1 + screen;
var docBottom = cm.doc.height + paddingVert(display);
var atTop = y1 < snapMargin, atBottom = y2 > docBottom - snapMargin;
if (y1 < screentop) {
result.scrollTop = atTop ? 0 : y1;
} else if (y2 > screentop + screen) {
var newTop = Math.min(y1, (atBottom ? docBottom : y2) - screen);
if (newTop != screentop) result.scrollTop = newTop;
}
var screenleft = cm.curOp && cm.curOp.scrollLeft != null ? cm.curOp.scrollLeft : display.scroller.scrollLeft;
var screenw = displayWidth(cm) - (cm.options.fixedGutter ? display.gutters.offsetWidth : 0);
var tooWide = x2 - x1 > screenw;
if (tooWide) x2 = x1 + screenw;
if (x1 < 10)
result.scrollLeft = 0;
else if (x1 < screenleft)
result.scrollLeft = Math.max(0, x1 - (tooWide ? 0 : 10));
else if (x2 > screenw + screenleft - 3)
result.scrollLeft = x2 + (tooWide ? 0 : 10) - screenw;
return result;
}
// Store a relative adjustment to the scroll position in the current
// operation (to be applied when the operation finishes).
function addToScrollPos(cm, left, top) {
if (left != null || top != null) resolveScrollToPos(cm);
if (left != null)
cm.curOp.scrollLeft = (cm.curOp.scrollLeft == null ? cm.doc.scrollLeft : cm.curOp.scrollLeft) + left;
if (top != null)
cm.curOp.scrollTop = (cm.curOp.scrollTop == null ? cm.doc.scrollTop : cm.curOp.scrollTop) + top;
}
// Make sure that at the end of the operation the current cursor is
// shown.
function ensureCursorVisible(cm) {
resolveScrollToPos(cm);
var cur = cm.getCursor(), from = cur, to = cur;
if (!cm.options.lineWrapping) {
from = cur.ch ? Pos(cur.line, cur.ch - 1) : cur;
to = Pos(cur.line, cur.ch + 1);
}
cm.curOp.scrollToPos = {from: from, to: to, margin: cm.options.cursorScrollMargin, isCursor: true};
}
// When an operation has its scrollToPos property set, and another
// scroll action is applied before the end of the operation, this
// 'simulates' scrolling that position into view in a cheap way, so
// that the effect of intermediate scroll commands is not ignored.
function resolveScrollToPos(cm) {
var range = cm.curOp.scrollToPos;
if (range) {
cm.curOp.scrollToPos = null;
var from = estimateCoords(cm, range.from), to = estimateCoords(cm, range.to);
var sPos = calculateScrollPos(cm, Math.min(from.left, to.left),
Math.min(from.top, to.top) - range.margin,
Math.max(from.right, to.right),
Math.max(from.bottom, to.bottom) + range.margin);
cm.scrollTo(sPos.scrollLeft, sPos.scrollTop);
}
}
// API UTILITIES
// Indent the given line. The how parameter can be "smart",
// "add"/null, "subtract", or "prev". When aggressive is false
// (typically set to true for forced single-line indents), empty
// lines are not indented, and places where the mode returns Pass
// are left alone.
function indentLine(cm, n, how, aggressive) {
var doc = cm.doc, state;
if (how == null) how = "add";
if (how == "smart") {
// Fall back to "prev" when the mode doesn't have an indentation
// method.
if (!doc.mode.indent) how = "prev";
else state = getStateBefore(cm, n);
}
var tabSize = cm.options.tabSize;
var line = getLine(doc, n), curSpace = countColumn(line.text, null, tabSize);
if (line.stateAfter) line.stateAfter = null;
var curSpaceString = line.text.match(/^\s*/)[0], indentation;
if (!aggressive && !/\S/.test(line.text)) {
indentation = 0;
how = "not";
} else if (how == "smart") {
indentation = doc.mode.indent(state, line.text.slice(curSpaceString.length), line.text);
if (indentation == Pass || indentation > 150) {
if (!aggressive) return;
how = "prev";
}
}
if (how == "prev") {
if (n > doc.first) indentation = countColumn(getLine(doc, n-1).text, null, tabSize);
else indentation = 0;
} else if (how == "add") {
indentation = curSpace + cm.options.indentUnit;
} else if (how == "subtract") {
indentation = curSpace - cm.options.indentUnit;
} else if (typeof how == "number") {
indentation = curSpace + how;
}
indentation = Math.max(0, indentation);
var indentString = "", pos = 0;
if (cm.options.indentWithTabs)
for (var i = Math.floor(indentation / tabSize); i; --i) {pos += tabSize; indentString += "\t";}
if (pos < indentation) indentString += spaceStr(indentation - pos);
if (indentString != curSpaceString) {
replaceRange(doc, indentString, Pos(n, 0), Pos(n, curSpaceString.length), "+input");
line.stateAfter = null;
return true;
} else {
// Ensure that, if the cursor was in the whitespace at the start
// of the line, it is moved to the end of that space.
for (var i = 0; i < doc.sel.ranges.length; i++) {
var range = doc.sel.ranges[i];
if (range.head.line == n && range.head.ch < curSpaceString.length) {
var pos = Pos(n, curSpaceString.length);
replaceOneSelection(doc, i, new Range(pos, pos));
break;
}
}
}
}
// Utility for applying a change to a line by handle or number,
// returning the number and optionally registering the line as
// changed.
function changeLine(doc, handle, changeType, op) {
var no = handle, line = handle;
if (typeof handle == "number") line = getLine(doc, clipLine(doc, handle));
else no = lineNo(handle);
if (no == null) return null;
if (op(line, no) && doc.cm) regLineChange(doc.cm, no, changeType);
return line;
}
// Helper for deleting text near the selection(s), used to implement
// backspace, delete, and similar functionality.
function deleteNearSelection(cm, compute) {
var ranges = cm.doc.sel.ranges, kill = [];
// Build up a set of ranges to kill first, merging overlapping
// ranges.
for (var i = 0; i < ranges.length; i++) {
var toKill = compute(ranges[i]);
while (kill.length && cmp(toKill.from, lst(kill).to) <= 0) {
var replaced = kill.pop();
if (cmp(replaced.from, toKill.from) < 0) {
toKill.from = replaced.from;
break;
}
}
kill.push(toKill);
}
// Next, remove those actual ranges.
runInOp(cm, function() {
for (var i = kill.length - 1; i >= 0; i--)
replaceRange(cm.doc, "", kill[i].from, kill[i].to, "+delete");
ensureCursorVisible(cm);
});
}
// Used for horizontal relative motion. Dir is -1 or 1 (left or
// right), unit can be "char", "column" (like char, but doesn't
// cross line boundaries), "word" (across next word), or "group" (to
// the start of next group of word or non-word-non-whitespace
// chars). The visually param controls whether, in right-to-left
// text, direction 1 means to move towards the next index in the
// string, or towards the character to the right of the current
// position. The resulting position will have a hitSide=true
// property if it reached the end of the document.
function findPosH(doc, pos, dir, unit, visually) {
var line = pos.line, ch = pos.ch, origDir = dir;
var lineObj = getLine(doc, line);
var possible = true;
function findNextLine() {
var l = line + dir;
if (l < doc.first || l >= doc.first + doc.size) return (possible = false);
line = l;
return lineObj = getLine(doc, l);
}
function moveOnce(boundToLine) {
var next = (visually ? moveVisually : moveLogically)(lineObj, ch, dir, true);
if (next == null) {
if (!boundToLine && findNextLine()) {
if (visually) ch = (dir < 0 ? lineRight : lineLeft)(lineObj);
else ch = dir < 0 ? lineObj.text.length : 0;
} else return (possible = false);
} else ch = next;
return true;
}
if (unit == "char") moveOnce();
else if (unit == "column") moveOnce(true);
else if (unit == "word" || unit == "group") {
var sawType = null, group = unit == "group";
var helper = doc.cm && doc.cm.getHelper(pos, "wordChars");
for (var first = true;; first = false) {
if (dir < 0 && !moveOnce(!first)) break;
var cur = lineObj.text.charAt(ch) || "\n";
var type = isWordChar(cur, helper) ? "w"
: group && cur == "\n" ? "n"
: !group || /\s/.test(cur) ? null
: "p";
if (group && !first && !type) type = "s";
if (sawType && sawType != type) {
if (dir < 0) {dir = 1; moveOnce();}
break;
}
if (type) sawType = type;
if (dir > 0 && !moveOnce(!first)) break;
}
}
var result = skipAtomic(doc, Pos(line, ch), origDir, true);
if (!possible) result.hitSide = true;
return result;
}
// For relative vertical movement. Dir may be -1 or 1. Unit can be
// "page" or "line". The resulting position will have a hitSide=true
// property if it reached the end of the document.
function findPosV(cm, pos, dir, unit) {
var doc = cm.doc, x = pos.left, y;
if (unit == "page") {
var pageSize = Math.min(cm.display.wrapper.clientHeight, window.innerHeight || document.documentElement.clientHeight);
y = pos.top + dir * (pageSize - (dir < 0 ? 1.5 : .5) * textHeight(cm.display));
} else if (unit == "line") {
y = dir > 0 ? pos.bottom + 3 : pos.top - 3;
}
for (;;) {
var target = coordsChar(cm, x, y);
if (!target.outside) break;
if (dir < 0 ? y <= 0 : y >= doc.height) { target.hitSide = true; break; }
y += dir * 5;
}
return target;
}
// EDITOR METHODS
// The publicly visible API. Note that methodOp(f) means
// 'wrap f in an operation, performed on its `this` parameter'.
// This is not the complete set of editor methods. Most of the
// methods defined on the Doc type are also injected into
// CodeMirror.prototype, for backwards compatibility and
// convenience.
CodeMirror.prototype = {
constructor: CodeMirror,
focus: function(){window.focus(); this.display.input.focus();},
setOption: function(option, value) {
var options = this.options, old = options[option];
if (options[option] == value && option != "mode") return;
options[option] = value;
if (optionHandlers.hasOwnProperty(option))
operation(this, optionHandlers[option])(this, value, old);
},
getOption: function(option) {return this.options[option];},
getDoc: function() {return this.doc;},
addKeyMap: function(map, bottom) {
this.state.keyMaps[bottom ? "push" : "unshift"](getKeyMap(map));
},
removeKeyMap: function(map) {
var maps = this.state.keyMaps;
for (var i = 0; i < maps.length; ++i)
if (maps[i] == map || maps[i].name == map) {
maps.splice(i, 1);
return true;
}
},
addOverlay: methodOp(function(spec, options) {
var mode = spec.token ? spec : CodeMirror.getMode(this.options, spec);
if (mode.startState) throw new Error("Overlays may not be stateful.");
this.state.overlays.push({mode: mode, modeSpec: spec, opaque: options && options.opaque});
this.state.modeGen++;
regChange(this);
}),
removeOverlay: methodOp(function(spec) {
var overlays = this.state.overlays;
for (var i = 0; i < overlays.length; ++i) {
var cur = overlays[i].modeSpec;
if (cur == spec || typeof spec == "string" && cur.name == spec) {
overlays.splice(i, 1);
this.state.modeGen++;
regChange(this);
return;
}
}
}),
indentLine: methodOp(function(n, dir, aggressive) {
if (typeof dir != "string" && typeof dir != "number") {
if (dir == null) dir = this.options.smartIndent ? "smart" : "prev";
else dir = dir ? "add" : "subtract";
}
if (isLine(this.doc, n)) indentLine(this, n, dir, aggressive);
}),
indentSelection: methodOp(function(how) {
var ranges = this.doc.sel.ranges, end = -1;
for (var i = 0; i < ranges.length; i++) {
var range = ranges[i];
if (!range.empty()) {
var from = range.from(), to = range.to();
var start = Math.max(end, from.line);
end = Math.min(this.lastLine(), to.line - (to.ch ? 0 : 1)) + 1;
for (var j = start; j < end; ++j)
indentLine(this, j, how);
var newRanges = this.doc.sel.ranges;
if (from.ch == 0 && ranges.length == newRanges.length && newRanges[i].from().ch > 0)
replaceOneSelection(this.doc, i, new Range(from, newRanges[i].to()), sel_dontScroll);
} else if (range.head.line > end) {
indentLine(this, range.head.line, how, true);
end = range.head.line;
if (i == this.doc.sel.primIndex) ensureCursorVisible(this);
}
}
}),
// Fetch the parser token for a given character. Useful for hacks
// that want to inspect the mode state (say, for completion).
getTokenAt: function(pos, precise) {
return takeToken(this, pos, precise);
},
getLineTokens: function(line, precise) {
return takeToken(this, Pos(line), precise, true);
},
getTokenTypeAt: function(pos) {
pos = clipPos(this.doc, pos);
var styles = getLineStyles(this, getLine(this.doc, pos.line));
var before = 0, after = (styles.length - 1) / 2, ch = pos.ch;
var type;
if (ch == 0) type = styles[2];
else for (;;) {
var mid = (before + after) >> 1;
if ((mid ? styles[mid * 2 - 1] : 0) >= ch) after = mid;
else if (styles[mid * 2 + 1] < ch) before = mid + 1;
else { type = styles[mid * 2 + 2]; break; }
}
var cut = type ? type.indexOf("cm-overlay ") : -1;
return cut < 0 ? type : cut == 0 ? null : type.slice(0, cut - 1);
},
getModeAt: function(pos) {
var mode = this.doc.mode;
if (!mode.innerMode) return mode;
return CodeMirror.innerMode(mode, this.getTokenAt(pos).state).mode;
},
getHelper: function(pos, type) {
return this.getHelpers(pos, type)[0];
},
getHelpers: function(pos, type) {
var found = [];
if (!helpers.hasOwnProperty(type)) return found;
var help = helpers[type], mode = this.getModeAt(pos);
if (typeof mode[type] == "string") {
if (help[mode[type]]) found.push(help[mode[type]]);
} else if (mode[type]) {
for (var i = 0; i < mode[type].length; i++) {
var val = help[mode[type][i]];
if (val) found.push(val);
}
} else if (mode.helperType && help[mode.helperType]) {
found.push(help[mode.helperType]);
} else if (help[mode.name]) {
found.push(help[mode.name]);
}
for (var i = 0; i < help._global.length; i++) {
var cur = help._global[i];
if (cur.pred(mode, this) && indexOf(found, cur.val) == -1)
found.push(cur.val);
}
return found;
},
getStateAfter: function(line, precise) {
var doc = this.doc;
line = clipLine(doc, line == null ? doc.first + doc.size - 1: line);
return getStateBefore(this, line + 1, precise);
},
cursorCoords: function(start, mode) {
var pos, range = this.doc.sel.primary();
if (start == null) pos = range.head;
else if (typeof start == "object") pos = clipPos(this.doc, start);
else pos = start ? range.from() : range.to();
return cursorCoords(this, pos, mode || "page");
},
charCoords: function(pos, mode) {
return charCoords(this, clipPos(this.doc, pos), mode || "page");
},
coordsChar: function(coords, mode) {
coords = fromCoordSystem(this, coords, mode || "page");
return coordsChar(this, coords.left, coords.top);
},
lineAtHeight: function(height, mode) {
height = fromCoordSystem(this, {top: height, left: 0}, mode || "page").top;
return lineAtHeight(this.doc, height + this.display.viewOffset);
},
heightAtLine: function(line, mode) {
var end = false, lineObj;
if (typeof line == "number") {
var last = this.doc.first + this.doc.size - 1;
if (line < this.doc.first) line = this.doc.first;
else if (line > last) { line = last; end = true; }
lineObj = getLine(this.doc, line);
} else {
lineObj = line;
}
return intoCoordSystem(this, lineObj, {top: 0, left: 0}, mode || "page").top +
(end ? this.doc.height - heightAtLine(lineObj) : 0);
},
defaultTextHeight: function() { return textHeight(this.display); },
defaultCharWidth: function() { return charWidth(this.display); },
setGutterMarker: methodOp(function(line, gutterID, value) {
return changeLine(this.doc, line, "gutter", function(line) {
var markers = line.gutterMarkers || (line.gutterMarkers = {});
markers[gutterID] = value;
if (!value && isEmpty(markers)) line.gutterMarkers = null;
return true;
});
}),
clearGutter: methodOp(function(gutterID) {
var cm = this, doc = cm.doc, i = doc.first;
doc.iter(function(line) {
if (line.gutterMarkers && line.gutterMarkers[gutterID]) {
line.gutterMarkers[gutterID] = null;
regLineChange(cm, i, "gutter");
if (isEmpty(line.gutterMarkers)) line.gutterMarkers = null;
}
++i;
});
}),
lineInfo: function(line) {
if (typeof line == "number") {
if (!isLine(this.doc, line)) return null;
var n = line;
line = getLine(this.doc, line);
if (!line) return null;
} else {
var n = lineNo(line);
if (n == null) return null;
}
return {line: n, handle: line, text: line.text, gutterMarkers: line.gutterMarkers,
textClass: line.textClass, bgClass: line.bgClass, wrapClass: line.wrapClass,
widgets: line.widgets};
},
getViewport: function() { return {from: this.display.viewFrom, to: this.display.viewTo};},
addWidget: function(pos, node, scroll, vert, horiz) {
var display = this.display;
pos = cursorCoords(this, clipPos(this.doc, pos));
var top = pos.bottom, left = pos.left;
node.style.position = "absolute";
node.setAttribute("cm-ignore-events", "true");
this.display.input.setUneditable(node);
display.sizer.appendChild(node);
if (vert == "over") {
top = pos.top;
} else if (vert == "above" || vert == "near") {
var vspace = Math.max(display.wrapper.clientHeight, this.doc.height),
hspace = Math.max(display.sizer.clientWidth, display.lineSpace.clientWidth);
// Default to positioning above (if specified and possible); otherwise default to positioning below
if ((vert == 'above' || pos.bottom + node.offsetHeight > vspace) && pos.top > node.offsetHeight)
top = pos.top - node.offsetHeight;
else if (pos.bottom + node.offsetHeight <= vspace)
top = pos.bottom;
if (left + node.offsetWidth > hspace)
left = hspace - node.offsetWidth;
}
node.style.top = top + "px";
node.style.left = node.style.right = "";
if (horiz == "right") {
left = display.sizer.clientWidth - node.offsetWidth;
node.style.right = "0px";
} else {
if (horiz == "left") left = 0;
else if (horiz == "middle") left = (display.sizer.clientWidth - node.offsetWidth) / 2;
node.style.left = left + "px";
}
if (scroll)
scrollIntoView(this, left, top, left + node.offsetWidth, top + node.offsetHeight);
},
triggerOnKeyDown: methodOp(onKeyDown),
triggerOnKeyPress: methodOp(onKeyPress),
triggerOnKeyUp: onKeyUp,
execCommand: function(cmd) {
if (commands.hasOwnProperty(cmd))
return commands[cmd].call(null, this);
},
triggerElectric: methodOp(function(text) { triggerElectric(this, text); }),
findPosH: function(from, amount, unit, visually) {
var dir = 1;
if (amount < 0) { dir = -1; amount = -amount; }
for (var i = 0, cur = clipPos(this.doc, from); i < amount; ++i) {
cur = findPosH(this.doc, cur, dir, unit, visually);
if (cur.hitSide) break;
}
return cur;
},
moveH: methodOp(function(dir, unit) {
var cm = this;
cm.extendSelectionsBy(function(range) {
if (cm.display.shift || cm.doc.extend || range.empty())
return findPosH(cm.doc, range.head, dir, unit, cm.options.rtlMoveVisually);
else
return dir < 0 ? range.from() : range.to();
}, sel_move);
}),
deleteH: methodOp(function(dir, unit) {
var sel = this.doc.sel, doc = this.doc;
if (sel.somethingSelected())
doc.replaceSelection("", null, "+delete");
else
deleteNearSelection(this, function(range) {
var other = findPosH(doc, range.head, dir, unit, false);
return dir < 0 ? {from: other, to: range.head} : {from: range.head, to: other};
});
}),
findPosV: function(from, amount, unit, goalColumn) {
var dir = 1, x = goalColumn;
if (amount < 0) { dir = -1; amount = -amount; }
for (var i = 0, cur = clipPos(this.doc, from); i < amount; ++i) {
var coords = cursorCoords(this, cur, "div");
if (x == null) x = coords.left;
else coords.left = x;
cur = findPosV(this, coords, dir, unit);
if (cur.hitSide) break;
}
return cur;
},
moveV: methodOp(function(dir, unit) {
var cm = this, doc = this.doc, goals = [];
var collapse = !cm.display.shift && !doc.extend && doc.sel.somethingSelected();
doc.extendSelectionsBy(function(range) {
if (collapse)
return dir < 0 ? range.from() : range.to();
var headPos = cursorCoords(cm, range.head, "div");
if (range.goalColumn != null) headPos.left = range.goalColumn;
goals.push(headPos.left);
var pos = findPosV(cm, headPos, dir, unit);
if (unit == "page" && range == doc.sel.primary())
addToScrollPos(cm, null, charCoords(cm, pos, "div").top - headPos.top);
return pos;
}, sel_move);
if (goals.length) for (var i = 0; i < doc.sel.ranges.length; i++)
doc.sel.ranges[i].goalColumn = goals[i];
}),
// Find the word at the given position (as returned by coordsChar).
findWordAt: function(pos) {
var doc = this.doc, line = getLine(doc, pos.line).text;
var start = pos.ch, end = pos.ch;
if (line) {
var helper = this.getHelper(pos, "wordChars");
if ((pos.xRel < 0 || end == line.length) && start) --start; else ++end;
var startChar = line.charAt(start);
var check = isWordChar(startChar, helper)
? function(ch) { return isWordChar(ch, helper); }
: /\s/.test(startChar) ? function(ch) {return /\s/.test(ch);}
: function(ch) {return !/\s/.test(ch) && !isWordChar(ch);};
while (start > 0 && check(line.charAt(start - 1))) --start;
while (end < line.length && check(line.charAt(end))) ++end;
}
return new Range(Pos(pos.line, start), Pos(pos.line, end));
},
toggleOverwrite: function(value) {
if (value != null && value == this.state.overwrite) return;
if (this.state.overwrite = !this.state.overwrite)
addClass(this.display.cursorDiv, "CodeMirror-overwrite");
else
rmClass(this.display.cursorDiv, "CodeMirror-overwrite");
signal(this, "overwriteToggle", this, this.state.overwrite);
},
hasFocus: function() { return this.display.input.getField() == activeElt(); },
scrollTo: methodOp(function(x, y) {
if (x != null || y != null) resolveScrollToPos(this);
if (x != null) this.curOp.scrollLeft = x;
if (y != null) this.curOp.scrollTop = y;
}),
getScrollInfo: function() {
var scroller = this.display.scroller;
return {left: scroller.scrollLeft, top: scroller.scrollTop,
height: scroller.scrollHeight - scrollGap(this) - this.display.barHeight,
width: scroller.scrollWidth - scrollGap(this) - this.display.barWidth,
clientHeight: displayHeight(this), clientWidth: displayWidth(this)};
},
scrollIntoView: methodOp(function(range, margin) {
if (range == null) {
range = {from: this.doc.sel.primary().head, to: null};
if (margin == null) margin = this.options.cursorScrollMargin;
} else if (typeof range == "number") {
range = {from: Pos(range, 0), to: null};
} else if (range.from == null) {
range = {from: range, to: null};
}
if (!range.to) range.to = range.from;
range.margin = margin || 0;
if (range.from.line != null) {
resolveScrollToPos(this);
this.curOp.scrollToPos = range;
} else {
var sPos = calculateScrollPos(this, Math.min(range.from.left, range.to.left),
Math.min(range.from.top, range.to.top) - range.margin,
Math.max(range.from.right, range.to.right),
Math.max(range.from.bottom, range.to.bottom) + range.margin);
this.scrollTo(sPos.scrollLeft, sPos.scrollTop);
}
}),
setSize: methodOp(function(width, height) {
var cm = this;
function interpret(val) {
return typeof val == "number" || /^\d+$/.test(String(val)) ? val + "px" : val;
}
if (width != null) cm.display.wrapper.style.width = interpret(width);
if (height != null) cm.display.wrapper.style.height = interpret(height);
if (cm.options.lineWrapping) clearLineMeasurementCache(this);
var lineNo = cm.display.viewFrom;
cm.doc.iter(lineNo, cm.display.viewTo, function(line) {
if (line.widgets) for (var i = 0; i < line.widgets.length; i++)
if (line.widgets[i].noHScroll) { regLineChange(cm, lineNo, "widget"); break; }
++lineNo;
});
cm.curOp.forceUpdate = true;
signal(cm, "refresh", this);
}),
operation: function(f){return runInOp(this, f);},
refresh: methodOp(function() {
var oldHeight = this.display.cachedTextHeight;
regChange(this);
this.curOp.forceUpdate = true;
clearCaches(this);
this.scrollTo(this.doc.scrollLeft, this.doc.scrollTop);
updateGutterSpace(this);
if (oldHeight == null || Math.abs(oldHeight - textHeight(this.display)) > .5)
estimateLineHeights(this);
signal(this, "refresh", this);
}),
swapDoc: methodOp(function(doc) {
var old = this.doc;
old.cm = null;
attachDoc(this, doc);
clearCaches(this);
this.display.input.reset();
this.scrollTo(doc.scrollLeft, doc.scrollTop);
this.curOp.forceScroll = true;
signalLater(this, "swapDoc", this, old);
return old;
}),
getInputField: function(){return this.display.input.getField();},
getWrapperElement: function(){return this.display.wrapper;},
getScrollerElement: function(){return this.display.scroller;},
getGutterElement: function(){return this.display.gutters;}
};
eventMixin(CodeMirror);
// OPTION DEFAULTS
// The default configuration options.
var defaults = CodeMirror.defaults = {};
// Functions to run when options are changed.
var optionHandlers = CodeMirror.optionHandlers = {};
function option(name, deflt, handle, notOnInit) {
CodeMirror.defaults[name] = deflt;
if (handle) optionHandlers[name] =
notOnInit ? function(cm, val, old) {if (old != Init) handle(cm, val, old);} : handle;
}
// Passed to option handlers when there is no old value.
var Init = CodeMirror.Init = {toString: function(){return "CodeMirror.Init";}};
// These two are, on init, called from the constructor because they
// have to be initialized before the editor can start at all.
option("value", "", function(cm, val) {
cm.setValue(val);
}, true);
option("mode", null, function(cm, val) {
cm.doc.modeOption = val;
loadMode(cm);
}, true);
option("indentUnit", 2, loadMode, true);
option("indentWithTabs", false);
option("smartIndent", true);
option("tabSize", 4, function(cm) {
resetModeState(cm);
clearCaches(cm);
regChange(cm);
}, true);
option("lineSeparator", null, function(cm, val) {
cm.doc.lineSep = val;
if (!val) return;
var newBreaks = [], lineNo = cm.doc.first;
cm.doc.iter(function(line) {
for (var pos = 0;;) {
var found = line.text.indexOf(val, pos);
if (found == -1) break;
pos = found + val.length;
newBreaks.push(Pos(lineNo, found));
}
lineNo++;
});
for (var i = newBreaks.length - 1; i >= 0; i--)
replaceRange(cm.doc, val, newBreaks[i], Pos(newBreaks[i].line, newBreaks[i].ch + val.length))
});
option("specialChars", /[\t\u0000-\u0019\u00ad\u200b-\u200f\u2028\u2029\ufeff]/g, function(cm, val, old) {
cm.state.specialChars = new RegExp(val.source + (val.test("\t") ? "" : "|\t"), "g");
if (old != CodeMirror.Init) cm.refresh();
});
option("specialCharPlaceholder", defaultSpecialCharPlaceholder, function(cm) {cm.refresh();}, true);
option("electricChars", true);
option("inputStyle", mobile ? "contenteditable" : "textarea", function() {
throw new Error("inputStyle can not (yet) be changed in a running editor"); // FIXME
}, true);
option("rtlMoveVisually", !windows);
option("wholeLineUpdateBefore", true);
option("theme", "default", function(cm) {
themeChanged(cm);
guttersChanged(cm);
}, true);
option("keyMap", "default", function(cm, val, old) {
var next = getKeyMap(val);
var prev = old != CodeMirror.Init && getKeyMap(old);
if (prev && prev.detach) prev.detach(cm, next);
if (next.attach) next.attach(cm, prev || null);
});
option("extraKeys", null);
option("lineWrapping", false, wrappingChanged, true);
option("gutters", [], function(cm) {
setGuttersForLineNumbers(cm.options);
guttersChanged(cm);
}, true);
option("fixedGutter", true, function(cm, val) {
cm.display.gutters.style.left = val ? compensateForHScroll(cm.display) + "px" : "0";
cm.refresh();
}, true);
option("coverGutterNextToScrollbar", false, function(cm) {updateScrollbars(cm);}, true);
option("scrollbarStyle", "native", function(cm) {
initScrollbars(cm);
updateScrollbars(cm);
cm.display.scrollbars.setScrollTop(cm.doc.scrollTop);
cm.display.scrollbars.setScrollLeft(cm.doc.scrollLeft);
}, true);
option("lineNumbers", false, function(cm) {
setGuttersForLineNumbers(cm.options);
guttersChanged(cm);
}, true);
option("firstLineNumber", 1, guttersChanged, true);
option("lineNumberFormatter", function(integer) {return integer;}, guttersChanged, true);
option("showCursorWhenSelecting", false, updateSelection, true);
option("resetSelectionOnContextMenu", true);
option("lineWiseCopyCut", true);
option("readOnly", false, function(cm, val) {
if (val == "nocursor") {
onBlur(cm);
cm.display.input.blur();
cm.display.disabled = true;
} else {
cm.display.disabled = false;
}
cm.display.input.readOnlyChanged(val)
});
option("disableInput", false, function(cm, val) {if (!val) cm.display.input.reset();}, true);
option("dragDrop", true, dragDropChanged);
option("cursorBlinkRate", 530);
option("cursorScrollMargin", 0);
option("cursorHeight", 1, updateSelection, true);
option("singleCursorHeightPerLine", true, updateSelection, true);
option("workTime", 100);
option("workDelay", 100);
option("flattenSpans", true, resetModeState, true);
option("addModeClass", false, resetModeState, true);
option("pollInterval", 100);
option("undoDepth", 200, function(cm, val){cm.doc.history.undoDepth = val;});
option("historyEventDelay", 1250);
option("viewportMargin", 10, function(cm){cm.refresh();}, true);
option("maxHighlightLength", 10000, resetModeState, true);
option("moveInputWithCursor", true, function(cm, val) {
if (!val) cm.display.input.resetPosition();
});
option("tabindex", null, function(cm, val) {
cm.display.input.getField().tabIndex = val || "";
});
option("autofocus", null);
// MODE DEFINITION AND QUERYING
// Known modes, by name and by MIME
var modes = CodeMirror.modes = {}, mimeModes = CodeMirror.mimeModes = {};
// Extra arguments are stored as the mode's dependencies, which is
// used by (legacy) mechanisms like loadmode.js to automatically
// load a mode. (Preferred mechanism is the require/define calls.)
CodeMirror.defineMode = function(name, mode) {
if (!CodeMirror.defaults.mode && name != "null") CodeMirror.defaults.mode = name;
if (arguments.length > 2)
mode.dependencies = Array.prototype.slice.call(arguments, 2);
modes[name] = mode;
};
CodeMirror.defineMIME = function(mime, spec) {
mimeModes[mime] = spec;
};
// Given a MIME type, a {name, ...options} config object, or a name
// string, return a mode config object.
CodeMirror.resolveMode = function(spec) {
if (typeof spec == "string" && mimeModes.hasOwnProperty(spec)) {
spec = mimeModes[spec];
} else if (spec && typeof spec.name == "string" && mimeModes.hasOwnProperty(spec.name)) {
var found = mimeModes[spec.name];
if (typeof found == "string") found = {name: found};
spec = createObj(found, spec);
spec.name = found.name;
} else if (typeof spec == "string" && /^[\w\-]+\/[\w\-]+\+xml$/.test(spec)) {
return CodeMirror.resolveMode("application/xml");
}
if (typeof spec == "string") return {name: spec};
else return spec || {name: "null"};
};
// Given a mode spec (anything that resolveMode accepts), find and
// initialize an actual mode object.
CodeMirror.getMode = function(options, spec) {
var spec = CodeMirror.resolveMode(spec);
var mfactory = modes[spec.name];
if (!mfactory) return CodeMirror.getMode(options, "text/plain");
var modeObj = mfactory(options, spec);
if (modeExtensions.hasOwnProperty(spec.name)) {
var exts = modeExtensions[spec.name];
for (var prop in exts) {
if (!exts.hasOwnProperty(prop)) continue;
if (modeObj.hasOwnProperty(prop)) modeObj["_" + prop] = modeObj[prop];
modeObj[prop] = exts[prop];
}
}
modeObj.name = spec.name;
if (spec.helperType) modeObj.helperType = spec.helperType;
if (spec.modeProps) for (var prop in spec.modeProps)
modeObj[prop] = spec.modeProps[prop];
return modeObj;
};
// Minimal default mode.
CodeMirror.defineMode("null", function() {
return {token: function(stream) {stream.skipToEnd();}};
});
CodeMirror.defineMIME("text/plain", "null");
// This can be used to attach properties to mode objects from
// outside the actual mode definition.
var modeExtensions = CodeMirror.modeExtensions = {};
CodeMirror.extendMode = function(mode, properties) {
var exts = modeExtensions.hasOwnProperty(mode) ? modeExtensions[mode] : (modeExtensions[mode] = {});
copyObj(properties, exts);
};
// EXTENSIONS
CodeMirror.defineExtension = function(name, func) {
CodeMirror.prototype[name] = func;
};
CodeMirror.defineDocExtension = function(name, func) {
Doc.prototype[name] = func;
};
CodeMirror.defineOption = option;
var initHooks = [];
CodeMirror.defineInitHook = function(f) {initHooks.push(f);};
var helpers = CodeMirror.helpers = {};
CodeMirror.registerHelper = function(type, name, value) {
if (!helpers.hasOwnProperty(type)) helpers[type] = CodeMirror[type] = {_global: []};
helpers[type][name] = value;
};
CodeMirror.registerGlobalHelper = function(type, name, predicate, value) {
CodeMirror.registerHelper(type, name, value);
helpers[type]._global.push({pred: predicate, val: value});
};
// MODE STATE HANDLING
// Utility functions for working with state. Exported because nested
// modes need to do this for their inner modes.
var copyState = CodeMirror.copyState = function(mode, state) {
if (state === true) return state;
if (mode.copyState) return mode.copyState(state);
var nstate = {};
for (var n in state) {
var val = state[n];
if (val instanceof Array) val = val.concat([]);
nstate[n] = val;
}
return nstate;
};
var startState = CodeMirror.startState = function(mode, a1, a2) {
return mode.startState ? mode.startState(a1, a2) : true;
};
// Given a mode and a state (for that mode), find the inner mode and
// state at the position that the state refers to.
CodeMirror.innerMode = function(mode, state) {
while (mode.innerMode) {
var info = mode.innerMode(state);
if (!info || info.mode == mode) break;
state = info.state;
mode = info.mode;
}
return info || {mode: mode, state: state};
};
// STANDARD COMMANDS
// Commands are parameter-less actions that can be performed on an
// editor, mostly used for keybindings.
var commands = CodeMirror.commands = {
selectAll: function(cm) {cm.setSelection(Pos(cm.firstLine(), 0), Pos(cm.lastLine()), sel_dontScroll);},
singleSelection: function(cm) {
cm.setSelection(cm.getCursor("anchor"), cm.getCursor("head"), sel_dontScroll);
},
killLine: function(cm) {
deleteNearSelection(cm, function(range) {
if (range.empty()) {
var len = getLine(cm.doc, range.head.line).text.length;
if (range.head.ch == len && range.head.line < cm.lastLine())
return {from: range.head, to: Pos(range.head.line + 1, 0)};
else
return {from: range.head, to: Pos(range.head.line, len)};
} else {
return {from: range.from(), to: range.to()};
}
});
},
deleteLine: function(cm) {
deleteNearSelection(cm, function(range) {
return {from: Pos(range.from().line, 0),
to: clipPos(cm.doc, Pos(range.to().line + 1, 0))};
});
},
delLineLeft: function(cm) {
deleteNearSelection(cm, function(range) {
return {from: Pos(range.from().line, 0), to: range.from()};
});
},
delWrappedLineLeft: function(cm) {
deleteNearSelection(cm, function(range) {
var top = cm.charCoords(range.head, "div").top + 5;
var leftPos = cm.coordsChar({left: 0, top: top}, "div");
return {from: leftPos, to: range.from()};
});
},
delWrappedLineRight: function(cm) {
deleteNearSelection(cm, function(range) {
var top = cm.charCoords(range.head, "div").top + 5;
var rightPos = cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, "div");
return {from: range.from(), to: rightPos };
});
},
undo: function(cm) {cm.undo();},
redo: function(cm) {cm.redo();},
undoSelection: function(cm) {cm.undoSelection();},
redoSelection: function(cm) {cm.redoSelection();},
goDocStart: function(cm) {cm.extendSelection(Pos(cm.firstLine(), 0));},
goDocEnd: function(cm) {cm.extendSelection(Pos(cm.lastLine()));},
goLineStart: function(cm) {
cm.extendSelectionsBy(function(range) { return lineStart(cm, range.head.line); },
{origin: "+move", bias: 1});
},
goLineStartSmart: function(cm) {
cm.extendSelectionsBy(function(range) {
return lineStartSmart(cm, range.head);
}, {origin: "+move", bias: 1});
},
goLineEnd: function(cm) {
cm.extendSelectionsBy(function(range) { return lineEnd(cm, range.head.line); },
{origin: "+move", bias: -1});
},
goLineRight: function(cm) {
cm.extendSelectionsBy(function(range) {
var top = cm.charCoords(range.head, "div").top + 5;
return cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, "div");
}, sel_move);
},
goLineLeft: function(cm) {
cm.extendSelectionsBy(function(range) {
var top = cm.charCoords(range.head, "div").top + 5;
return cm.coordsChar({left: 0, top: top}, "div");
}, sel_move);
},
goLineLeftSmart: function(cm) {
cm.extendSelectionsBy(function(range) {
var top = cm.charCoords(range.head, "div").top + 5;
var pos = cm.coordsChar({left: 0, top: top}, "div");
if (pos.ch < cm.getLine(pos.line).search(/\S/)) return lineStartSmart(cm, range.head);
return pos;
}, sel_move);
},
goLineUp: function(cm) {cm.moveV(-1, "line");},
goLineDown: function(cm) {cm.moveV(1, "line");},
goPageUp: function(cm) {cm.moveV(-1, "page");},
goPageDown: function(cm) {cm.moveV(1, "page");},
goCharLeft: function(cm) {cm.moveH(-1, "char");},
goCharRight: function(cm) {cm.moveH(1, "char");},
goColumnLeft: function(cm) {cm.moveH(-1, "column");},
goColumnRight: function(cm) {cm.moveH(1, "column");},
goWordLeft: function(cm) {cm.moveH(-1, "word");},
goGroupRight: function(cm) {cm.moveH(1, "group");},
goGroupLeft: function(cm) {cm.moveH(-1, "group");},
goWordRight: function(cm) {cm.moveH(1, "word");},
delCharBefore: function(cm) {cm.deleteH(-1, "char");},
delCharAfter: function(cm) {cm.deleteH(1, "char");},
delWordBefore: function(cm) {cm.deleteH(-1, "word");},
delWordAfter: function(cm) {cm.deleteH(1, "word");},
delGroupBefore: function(cm) {cm.deleteH(-1, "group");},
delGroupAfter: function(cm) {cm.deleteH(1, "group");},
indentAuto: function(cm) {cm.indentSelection("smart");},
indentMore: function(cm) {cm.indentSelection("add");},
indentLess: function(cm) {cm.indentSelection("subtract");},
insertTab: function(cm) {cm.replaceSelection("\t");},
insertSoftTab: function(cm) {
var spaces = [], ranges = cm.listSelections(), tabSize = cm.options.tabSize;
for (var i = 0; i < ranges.length; i++) {
var pos = ranges[i].from();
var col = countColumn(cm.getLine(pos.line), pos.ch, tabSize);
spaces.push(new Array(tabSize - col % tabSize + 1).join(" "));
}
cm.replaceSelections(spaces);
},
defaultTab: function(cm) {
if (cm.somethingSelected()) cm.indentSelection("add");
else cm.execCommand("insertTab");
},
transposeChars: function(cm) {
runInOp(cm, function() {
var ranges = cm.listSelections(), newSel = [];
for (var i = 0; i < ranges.length; i++) {
var cur = ranges[i].head, line = getLine(cm.doc, cur.line).text;
if (line) {
if (cur.ch == line.length) cur = new Pos(cur.line, cur.ch - 1);
if (cur.ch > 0) {
cur = new Pos(cur.line, cur.ch + 1);
cm.replaceRange(line.charAt(cur.ch - 1) + line.charAt(cur.ch - 2),
Pos(cur.line, cur.ch - 2), cur, "+transpose");
} else if (cur.line > cm.doc.first) {
var prev = getLine(cm.doc, cur.line - 1).text;
if (prev)
cm.replaceRange(line.charAt(0) + cm.doc.lineSeparator() +
prev.charAt(prev.length - 1),
Pos(cur.line - 1, prev.length - 1), Pos(cur.line, 1), "+transpose");
}
}
newSel.push(new Range(cur, cur));
}
cm.setSelections(newSel);
});
},
newlineAndIndent: function(cm) {
runInOp(cm, function() {
var len = cm.listSelections().length;
for (var i = 0; i < len; i++) {
var range = cm.listSelections()[i];
cm.replaceRange(cm.doc.lineSeparator(), range.anchor, range.head, "+input");
cm.indentLine(range.from().line + 1, null, true);
ensureCursorVisible(cm);
}
});
},
toggleOverwrite: function(cm) {cm.toggleOverwrite();}
};
// STANDARD KEYMAPS
var keyMap = CodeMirror.keyMap = {};
keyMap.basic = {
"Left": "goCharLeft", "Right": "goCharRight", "Up": "goLineUp", "Down": "goLineDown",
"End": "goLineEnd", "Home": "goLineStartSmart", "PageUp": "goPageUp", "PageDown": "goPageDown",
"Delete": "delCharAfter", "Backspace": "delCharBefore", "Shift-Backspace": "delCharBefore",
"Tab": "defaultTab", "Shift-Tab": "indentAuto",
"Enter": "newlineAndIndent", "Insert": "toggleOverwrite",
"Esc": "singleSelection"
};
// Note that the save and find-related commands aren't defined by
// default. User code or addons can define them. Unknown commands
// are simply ignored.
keyMap.pcDefault = {
"Ctrl-A": "selectAll", "Ctrl-D": "deleteLine", "Ctrl-Z": "undo", "Shift-Ctrl-Z": "redo", "Ctrl-Y": "redo",
"Ctrl-Home": "goDocStart", "Ctrl-End": "goDocEnd", "Ctrl-Up": "goLineUp", "Ctrl-Down": "goLineDown",
"Ctrl-Left": "goGroupLeft", "Ctrl-Right": "goGroupRight", "Alt-Left": "goLineStart", "Alt-Right": "goLineEnd",
"Ctrl-Backspace": "delGroupBefore", "Ctrl-Delete": "delGroupAfter", "Ctrl-S": "save", "Ctrl-F": "find",
"Ctrl-G": "findNext", "Shift-Ctrl-G": "findPrev", "Shift-Ctrl-F": "replace", "Shift-Ctrl-R": "replaceAll",
"Ctrl-[": "indentLess", "Ctrl-]": "indentMore",
"Ctrl-U": "undoSelection", "Shift-Ctrl-U": "redoSelection", "Alt-U": "redoSelection",
fallthrough: "basic"
};
// Very basic readline/emacs-style bindings, which are standard on Mac.
keyMap.emacsy = {
"Ctrl-F": "goCharRight", "Ctrl-B": "goCharLeft", "Ctrl-P": "goLineUp", "Ctrl-N": "goLineDown",
"Alt-F": "goWordRight", "Alt-B": "goWordLeft", "Ctrl-A": "goLineStart", "Ctrl-E": "goLineEnd",
"Ctrl-V": "goPageDown", "Shift-Ctrl-V": "goPageUp", "Ctrl-D": "delCharAfter", "Ctrl-H": "delCharBefore",
"Alt-D": "delWordAfter", "Alt-Backspace": "delWordBefore", "Ctrl-K": "killLine", "Ctrl-T": "transposeChars"
};
keyMap.macDefault = {
"Cmd-A": "selectAll", "Cmd-D": "deleteLine", "Cmd-Z": "undo", "Shift-Cmd-Z": "redo", "Cmd-Y": "redo",
"Cmd-Home": "goDocStart", "Cmd-Up": "goDocStart", "Cmd-End": "goDocEnd", "Cmd-Down": "goDocEnd", "Alt-Left": "goGroupLeft",
"Alt-Right": "goGroupRight", "Cmd-Left": "goLineLeft", "Cmd-Right": "goLineRight", "Alt-Backspace": "delGroupBefore",
"Ctrl-Alt-Backspace": "delGroupAfter", "Alt-Delete": "delGroupAfter", "Cmd-S": "save", "Cmd-F": "find",
"Cmd-G": "findNext", "Shift-Cmd-G": "findPrev", "Cmd-Alt-F": "replace", "Shift-Cmd-Alt-F": "replaceAll",
"Cmd-[": "indentLess", "Cmd-]": "indentMore", "Cmd-Backspace": "delWrappedLineLeft", "Cmd-Delete": "delWrappedLineRight",
"Cmd-U": "undoSelection", "Shift-Cmd-U": "redoSelection", "Ctrl-Up": "goDocStart", "Ctrl-Down": "goDocEnd",
fallthrough: ["basic", "emacsy"]
};
keyMap["default"] = mac ? keyMap.macDefault : keyMap.pcDefault;
// KEYMAP DISPATCH
function normalizeKeyName(name) {
var parts = name.split(/-(?!$)/), name = parts[parts.length - 1];
var alt, ctrl, shift, cmd;
for (var i = 0; i < parts.length - 1; i++) {
var mod = parts[i];
if (/^(cmd|meta|m)$/i.test(mod)) cmd = true;
else if (/^a(lt)?$/i.test(mod)) alt = true;
else if (/^(c|ctrl|control)$/i.test(mod)) ctrl = true;
else if (/^s(hift)$/i.test(mod)) shift = true;
else throw new Error("Unrecognized modifier name: " + mod);
}
if (alt) name = "Alt-" + name;
if (ctrl) name = "Ctrl-" + name;
if (cmd) name = "Cmd-" + name;
if (shift) name = "Shift-" + name;
return name;
}
// This is a kludge to keep keymaps mostly working as raw objects
// (backwards compatibility) while at the same time support features
// like normalization and multi-stroke key bindings. It compiles a
// new normalized keymap, and then updates the old object to reflect
// this.
CodeMirror.normalizeKeyMap = function(keymap) {
var copy = {};
for (var keyname in keymap) if (keymap.hasOwnProperty(keyname)) {
var value = keymap[keyname];
if (/^(name|fallthrough|(de|at)tach)$/.test(keyname)) continue;
if (value == "...") { delete keymap[keyname]; continue; }
var keys = map(keyname.split(" "), normalizeKeyName);
for (var i = 0; i < keys.length; i++) {
var val, name;
if (i == keys.length - 1) {
name = keys.join(" ");
val = value;
} else {
name = keys.slice(0, i + 1).join(" ");
val = "...";
}
var prev = copy[name];
if (!prev) copy[name] = val;
else if (prev != val) throw new Error("Inconsistent bindings for " + name);
}
delete keymap[keyname];
}
for (var prop in copy) keymap[prop] = copy[prop];
return keymap;
};
var lookupKey = CodeMirror.lookupKey = function(key, map, handle, context) {
map = getKeyMap(map);
var found = map.call ? map.call(key, context) : map[key];
if (found === false) return "nothing";
if (found === "...") return "multi";
if (found != null && handle(found)) return "handled";
if (map.fallthrough) {
if (Object.prototype.toString.call(map.fallthrough) != "[object Array]")
return lookupKey(key, map.fallthrough, handle, context);
for (var i = 0; i < map.fallthrough.length; i++) {
var result = lookupKey(key, map.fallthrough[i], handle, context);
if (result) return result;
}
}
};
// Modifier key presses don't count as 'real' key presses for the
// purpose of keymap fallthrough.
var isModifierKey = CodeMirror.isModifierKey = function(value) {
var name = typeof value == "string" ? value : keyNames[value.keyCode];
return name == "Ctrl" || name == "Alt" || name == "Shift" || name == "Mod";
};
// Look up the name of a key as indicated by an event object.
var keyName = CodeMirror.keyName = function(event, noShift) {
if (presto && event.keyCode == 34 && event["char"]) return false;
var base = keyNames[event.keyCode], name = base;
if (name == null || event.altGraphKey) return false;
if (event.altKey && base != "Alt") name = "Alt-" + name;
if ((flipCtrlCmd ? event.metaKey : event.ctrlKey) && base != "Ctrl") name = "Ctrl-" + name;
if ((flipCtrlCmd ? event.ctrlKey : event.metaKey) && base != "Cmd") name = "Cmd-" + name;
if (!noShift && event.shiftKey && base != "Shift") name = "Shift-" + name;
return name;
};
function getKeyMap(val) {
return typeof val == "string" ? keyMap[val] : val;
}
// FROMTEXTAREA
CodeMirror.fromTextArea = function(textarea, options) {
options = options ? copyObj(options) : {};
options.value = textarea.value;
if (!options.tabindex && textarea.tabIndex)
options.tabindex = textarea.tabIndex;
if (!options.placeholder && textarea.placeholder)
options.placeholder = textarea.placeholder;
// Set autofocus to true if this textarea is focused, or if it has
// autofocus and no other element is focused.
if (options.autofocus == null) {
var hasFocus = activeElt();
options.autofocus = hasFocus == textarea ||
textarea.getAttribute("autofocus") != null && hasFocus == document.body;
}
function save() {textarea.value = cm.getValue();}
if (textarea.form) {
on(textarea.form, "submit", save);
// Deplorable hack to make the submit method do the right thing.
if (!options.leaveSubmitMethodAlone) {
var form = textarea.form, realSubmit = form.submit;
try {
var wrappedSubmit = form.submit = function() {
save();
form.submit = realSubmit;
form.submit();
form.submit = wrappedSubmit;
};
} catch(e) {}
}
}
options.finishInit = function(cm) {
cm.save = save;
cm.getTextArea = function() { return textarea; };
cm.toTextArea = function() {
cm.toTextArea = isNaN; // Prevent this from being ran twice
save();
textarea.parentNode.removeChild(cm.getWrapperElement());
textarea.style.display = "";
if (textarea.form) {
off(textarea.form, "submit", save);
if (typeof textarea.form.submit == "function")
textarea.form.submit = realSubmit;
}
};
};
textarea.style.display = "none";
var cm = CodeMirror(function(node) {
textarea.parentNode.insertBefore(node, textarea.nextSibling);
}, options);
return cm;
};
// STRING STREAM
// Fed to the mode parsers, provides helper functions to make
// parsers more succinct.
var StringStream = CodeMirror.StringStream = function(string, tabSize) {
this.pos = this.start = 0;
this.string = string;
this.tabSize = tabSize || 8;
this.lastColumnPos = this.lastColumnValue = 0;
this.lineStart = 0;
};
StringStream.prototype = {
eol: function() {return this.pos >= this.string.length;},
sol: function() {return this.pos == this.lineStart;},
peek: function() {return this.string.charAt(this.pos) || undefined;},
next: function() {
if (this.pos < this.string.length)
return this.string.charAt(this.pos++);
},
eat: function(match) {
var ch = this.string.charAt(this.pos);
if (typeof match == "string") var ok = ch == match;
else var ok = ch && (match.test ? match.test(ch) : match(ch));
if (ok) {++this.pos; return ch;}
},
eatWhile: function(match) {
var start = this.pos;
while (this.eat(match)){}
return this.pos > start;
},
eatSpace: function() {
var start = this.pos;
while (/[\s\u00a0]/.test(this.string.charAt(this.pos))) ++this.pos;
return this.pos > start;
},
skipToEnd: function() {this.pos = this.string.length;},
skipTo: function(ch) {
var found = this.string.indexOf(ch, this.pos);
if (found > -1) {this.pos = found; return true;}
},
backUp: function(n) {this.pos -= n;},
column: function() {
if (this.lastColumnPos < this.start) {
this.lastColumnValue = countColumn(this.string, this.start, this.tabSize, this.lastColumnPos, this.lastColumnValue);
this.lastColumnPos = this.start;
}
return this.lastColumnValue - (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0);
},
indentation: function() {
return countColumn(this.string, null, this.tabSize) -
(this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0);
},
match: function(pattern, consume, caseInsensitive) {
if (typeof pattern == "string") {
var cased = function(str) {return caseInsensitive ? str.toLowerCase() : str;};
var substr = this.string.substr(this.pos, pattern.length);
if (cased(substr) == cased(pattern)) {
if (consume !== false) this.pos += pattern.length;
return true;
}
} else {
var match = this.string.slice(this.pos).match(pattern);
if (match && match.index > 0) return null;
if (match && consume !== false) this.pos += match[0].length;
return match;
}
},
current: function(){return this.string.slice(this.start, this.pos);},
hideFirstChars: function(n, inner) {
this.lineStart += n;
try { return inner(); }
finally { this.lineStart -= n; }
}
};
// TEXTMARKERS
// Created with markText and setBookmark methods. A TextMarker is a
// handle that can be used to clear or find a marked position in the
// document. Line objects hold arrays (markedSpans) containing
// {from, to, marker} object pointing to such marker objects, and
// indicating that such a marker is present on that line. Multiple
// lines may point to the same marker when it spans across lines.
// The spans will have null for their from/to properties when the
// marker continues beyond the start/end of the line. Markers have
// links back to the lines they currently touch.
var nextMarkerId = 0;
var TextMarker = CodeMirror.TextMarker = function(doc, type) {
this.lines = [];
this.type = type;
this.doc = doc;
this.id = ++nextMarkerId;
};
eventMixin(TextMarker);
// Clear the marker.
TextMarker.prototype.clear = function() {
if (this.explicitlyCleared) return;
var cm = this.doc.cm, withOp = cm && !cm.curOp;
if (withOp) startOperation(cm);
if (hasHandler(this, "clear")) {
var found = this.find();
if (found) signalLater(this, "clear", found.from, found.to);
}
var min = null, max = null;
for (var i = 0; i < this.lines.length; ++i) {
var line = this.lines[i];
var span = getMarkedSpanFor(line.markedSpans, this);
if (cm && !this.collapsed) regLineChange(cm, lineNo(line), "text");
else if (cm) {
if (span.to != null) max = lineNo(line);
if (span.from != null) min = lineNo(line);
}
line.markedSpans = removeMarkedSpan(line.markedSpans, span);
if (span.from == null && this.collapsed && !lineIsHidden(this.doc, line) && cm)
updateLineHeight(line, textHeight(cm.display));
}
if (cm && this.collapsed && !cm.options.lineWrapping) for (var i = 0; i < this.lines.length; ++i) {
var visual = visualLine(this.lines[i]), len = lineLength(visual);
if (len > cm.display.maxLineLength) {
cm.display.maxLine = visual;
cm.display.maxLineLength = len;
cm.display.maxLineChanged = true;
}
}
if (min != null && cm && this.collapsed) regChange(cm, min, max + 1);
this.lines.length = 0;
this.explicitlyCleared = true;
if (this.atomic && this.doc.cantEdit) {
this.doc.cantEdit = false;
if (cm) reCheckSelection(cm.doc);
}
if (cm) signalLater(cm, "markerCleared", cm, this);
if (withOp) endOperation(cm);
if (this.parent) this.parent.clear();
};
// Find the position of the marker in the document. Returns a {from,
// to} object by default. Side can be passed to get a specific side
// -- 0 (both), -1 (left), or 1 (right). When lineObj is true, the
// Pos objects returned contain a line object, rather than a line
// number (used to prevent looking up the same line twice).
TextMarker.prototype.find = function(side, lineObj) {
if (side == null && this.type == "bookmark") side = 1;
var from, to;
for (var i = 0; i < this.lines.length; ++i) {
var line = this.lines[i];
var span = getMarkedSpanFor(line.markedSpans, this);
if (span.from != null) {
from = Pos(lineObj ? line : lineNo(line), span.from);
if (side == -1) return from;
}
if (span.to != null) {
to = Pos(lineObj ? line : lineNo(line), span.to);
if (side == 1) return to;
}
}
return from && {from: from, to: to};
};
// Signals that the marker's widget changed, and surrounding layout
// should be recomputed.
TextMarker.prototype.changed = function() {
var pos = this.find(-1, true), widget = this, cm = this.doc.cm;
if (!pos || !cm) return;
runInOp(cm, function() {
var line = pos.line, lineN = lineNo(pos.line);
var view = findViewForLine(cm, lineN);
if (view) {
clearLineMeasurementCacheFor(view);
cm.curOp.selectionChanged = cm.curOp.forceUpdate = true;
}
cm.curOp.updateMaxLine = true;
if (!lineIsHidden(widget.doc, line) && widget.height != null) {
var oldHeight = widget.height;
widget.height = null;
var dHeight = widgetHeight(widget) - oldHeight;
if (dHeight)
updateLineHeight(line, line.height + dHeight);
}
});
};
TextMarker.prototype.attachLine = function(line) {
if (!this.lines.length && this.doc.cm) {
var op = this.doc.cm.curOp;
if (!op.maybeHiddenMarkers || indexOf(op.maybeHiddenMarkers, this) == -1)
(op.maybeUnhiddenMarkers || (op.maybeUnhiddenMarkers = [])).push(this);
}
this.lines.push(line);
};
TextMarker.prototype.detachLine = function(line) {
this.lines.splice(indexOf(this.lines, line), 1);
if (!this.lines.length && this.doc.cm) {
var op = this.doc.cm.curOp;
(op.maybeHiddenMarkers || (op.maybeHiddenMarkers = [])).push(this);
}
};
// Collapsed markers have unique ids, in order to be able to order
// them, which is needed for uniquely determining an outer marker
// when they overlap (they may nest, but not partially overlap).
var nextMarkerId = 0;
// Create a marker, wire it up to the right lines, and
function markText(doc, from, to, options, type) {
// Shared markers (across linked documents) are handled separately
// (markTextShared will call out to this again, once per
// document).
if (options && options.shared) return markTextShared(doc, from, to, options, type);
// Ensure we are in an operation.
if (doc.cm && !doc.cm.curOp) return operation(doc.cm, markText)(doc, from, to, options, type);
var marker = new TextMarker(doc, type), diff = cmp(from, to);
if (options) copyObj(options, marker, false);
// Don't connect empty markers unless clearWhenEmpty is false
if (diff > 0 || diff == 0 && marker.clearWhenEmpty !== false)
return marker;
if (marker.replacedWith) {
// Showing up as a widget implies collapsed (widget replaces text)
marker.collapsed = true;
marker.widgetNode = elt("span", [marker.replacedWith], "CodeMirror-widget");
if (!options.handleMouseEvents) marker.widgetNode.setAttribute("cm-ignore-events", "true");
if (options.insertLeft) marker.widgetNode.insertLeft = true;
}
if (marker.collapsed) {
if (conflictingCollapsedRange(doc, from.line, from, to, marker) ||
from.line != to.line && conflictingCollapsedRange(doc, to.line, from, to, marker))
throw new Error("Inserting collapsed marker partially overlapping an existing one");
sawCollapsedSpans = true;
}
if (marker.addToHistory)
addChangeToHistory(doc, {from: from, to: to, origin: "markText"}, doc.sel, NaN);
var curLine = from.line, cm = doc.cm, updateMaxLine;
doc.iter(curLine, to.line + 1, function(line) {
if (cm && marker.collapsed && !cm.options.lineWrapping && visualLine(line) == cm.display.maxLine)
updateMaxLine = true;
if (marker.collapsed && curLine != from.line) updateLineHeight(line, 0);
addMarkedSpan(line, new MarkedSpan(marker,
curLine == from.line ? from.ch : null,
curLine == to.line ? to.ch : null));
++curLine;
});
// lineIsHidden depends on the presence of the spans, so needs a second pass
if (marker.collapsed) doc.iter(from.line, to.line + 1, function(line) {
if (lineIsHidden(doc, line)) updateLineHeight(line, 0);
});
if (marker.clearOnEnter) on(marker, "beforeCursorEnter", function() { marker.clear(); });
if (marker.readOnly) {
sawReadOnlySpans = true;
if (doc.history.done.length || doc.history.undone.length)
doc.clearHistory();
}
if (marker.collapsed) {
marker.id = ++nextMarkerId;
marker.atomic = true;
}
if (cm) {
// Sync editor state
if (updateMaxLine) cm.curOp.updateMaxLine = true;
if (marker.collapsed)
regChange(cm, from.line, to.line + 1);
else if (marker.className || marker.title || marker.startStyle || marker.endStyle || marker.css)
for (var i = from.line; i <= to.line; i++) regLineChange(cm, i, "text");
if (marker.atomic) reCheckSelection(cm.doc);
signalLater(cm, "markerAdded", cm, marker);
}
return marker;
}
// SHARED TEXTMARKERS
// A shared marker spans multiple linked documents. It is
// implemented as a meta-marker-object controlling multiple normal
// markers.
var SharedTextMarker = CodeMirror.SharedTextMarker = function(markers, primary) {
this.markers = markers;
this.primary = primary;
for (var i = 0; i < markers.length; ++i)
markers[i].parent = this;
};
eventMixin(SharedTextMarker);
SharedTextMarker.prototype.clear = function() {
if (this.explicitlyCleared) return;
this.explicitlyCleared = true;
for (var i = 0; i < this.markers.length; ++i)
this.markers[i].clear();
signalLater(this, "clear");
};
SharedTextMarker.prototype.find = function(side, lineObj) {
return this.primary.find(side, lineObj);
};
function markTextShared(doc, from, to, options, type) {
options = copyObj(options);
options.shared = false;
var markers = [markText(doc, from, to, options, type)], primary = markers[0];
var widget = options.widgetNode;
linkedDocs(doc, function(doc) {
if (widget) options.widgetNode = widget.cloneNode(true);
markers.push(markText(doc, clipPos(doc, from), clipPos(doc, to), options, type));
for (var i = 0; i < doc.linked.length; ++i)
if (doc.linked[i].isParent) return;
primary = lst(markers);
});
return new SharedTextMarker(markers, primary);
}
function findSharedMarkers(doc) {
return doc.findMarks(Pos(doc.first, 0), doc.clipPos(Pos(doc.lastLine())),
function(m) { return m.parent; });
}
function copySharedMarkers(doc, markers) {
for (var i = 0; i < markers.length; i++) {
var marker = markers[i], pos = marker.find();
var mFrom = doc.clipPos(pos.from), mTo = doc.clipPos(pos.to);
if (cmp(mFrom, mTo)) {
var subMark = markText(doc, mFrom, mTo, marker.primary, marker.primary.type);
marker.markers.push(subMark);
subMark.parent = marker;
}
}
}
function detachSharedMarkers(markers) {
for (var i = 0; i < markers.length; i++) {
var marker = markers[i], linked = [marker.primary.doc];;
linkedDocs(marker.primary.doc, function(d) { linked.push(d); });
for (var j = 0; j < marker.markers.length; j++) {
var subMarker = marker.markers[j];
if (indexOf(linked, subMarker.doc) == -1) {
subMarker.parent = null;
marker.markers.splice(j--, 1);
}
}
}
}
// TEXTMARKER SPANS
function MarkedSpan(marker, from, to) {
this.marker = marker;
this.from = from; this.to = to;
}
// Search an array of spans for a span matching the given marker.
function getMarkedSpanFor(spans, marker) {
if (spans) for (var i = 0; i < spans.length; ++i) {
var span = spans[i];
if (span.marker == marker) return span;
}
}
// Remove a span from an array, returning undefined if no spans are
// left (we don't store arrays for lines without spans).
function removeMarkedSpan(spans, span) {
for (var r, i = 0; i < spans.length; ++i)
if (spans[i] != span) (r || (r = [])).push(spans[i]);
return r;
}
// Add a span to a line.
function addMarkedSpan(line, span) {
line.markedSpans = line.markedSpans ? line.markedSpans.concat([span]) : [span];
span.marker.attachLine(line);
}
// Used for the algorithm that adjusts markers for a change in the
// document. These functions cut an array of spans at a given
// character position, returning an array of remaining chunks (or
// undefined if nothing remains).
function markedSpansBefore(old, startCh, isInsert) {
if (old) for (var i = 0, nw; i < old.length; ++i) {
var span = old[i], marker = span.marker;
var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= startCh : span.from < startCh);
if (startsBefore || span.from == startCh && marker.type == "bookmark" && (!isInsert || !span.marker.insertLeft)) {
var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= startCh : span.to > startCh);
(nw || (nw = [])).push(new MarkedSpan(marker, span.from, endsAfter ? null : span.to));
}
}
return nw;
}
function markedSpansAfter(old, endCh, isInsert) {
if (old) for (var i = 0, nw; i < old.length; ++i) {
var span = old[i], marker = span.marker;
var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= endCh : span.to > endCh);
if (endsAfter || span.from == endCh && marker.type == "bookmark" && (!isInsert || span.marker.insertLeft)) {
var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= endCh : span.from < endCh);
(nw || (nw = [])).push(new MarkedSpan(marker, startsBefore ? null : span.from - endCh,
span.to == null ? null : span.to - endCh));
}
}
return nw;
}
// Given a change object, compute the new set of marker spans that
// cover the line in which the change took place. Removes spans
// entirely within the change, reconnects spans belonging to the
// same marker that appear on both sides of the change, and cuts off
// spans partially within the change. Returns an array of span
// arrays with one element for each line in (after) the change.
function stretchSpansOverChange(doc, change) {
if (change.full) return null;
var oldFirst = isLine(doc, change.from.line) && getLine(doc, change.from.line).markedSpans;
var oldLast = isLine(doc, change.to.line) && getLine(doc, change.to.line).markedSpans;
if (!oldFirst && !oldLast) return null;
var startCh = change.from.ch, endCh = change.to.ch, isInsert = cmp(change.from, change.to) == 0;
// Get the spans that 'stick out' on both sides
var first = markedSpansBefore(oldFirst, startCh, isInsert);
var last = markedSpansAfter(oldLast, endCh, isInsert);
// Next, merge those two ends
var sameLine = change.text.length == 1, offset = lst(change.text).length + (sameLine ? startCh : 0);
if (first) {
// Fix up .to properties of first
for (var i = 0; i < first.length; ++i) {
var span = first[i];
if (span.to == null) {
var found = getMarkedSpanFor(last, span.marker);
if (!found) span.to = startCh;
else if (sameLine) span.to = found.to == null ? null : found.to + offset;
}
}
}
if (last) {
// Fix up .from in last (or move them into first in case of sameLine)
for (var i = 0; i < last.length; ++i) {
var span = last[i];
if (span.to != null) span.to += offset;
if (span.from == null) {
var found = getMarkedSpanFor(first, span.marker);
if (!found) {
span.from = offset;
if (sameLine) (first || (first = [])).push(span);
}
} else {
span.from += offset;
if (sameLine) (first || (first = [])).push(span);
}
}
}
// Make sure we didn't create any zero-length spans
if (first) first = clearEmptySpans(first);
if (last && last != first) last = clearEmptySpans(last);
var newMarkers = [first];
if (!sameLine) {
// Fill gap with whole-line-spans
var gap = change.text.length - 2, gapMarkers;
if (gap > 0 && first)
for (var i = 0; i < first.length; ++i)
if (first[i].to == null)
(gapMarkers || (gapMarkers = [])).push(new MarkedSpan(first[i].marker, null, null));
for (var i = 0; i < gap; ++i)
newMarkers.push(gapMarkers);
newMarkers.push(last);
}
return newMarkers;
}
// Remove spans that are empty and don't have a clearWhenEmpty
// option of false.
function clearEmptySpans(spans) {
for (var i = 0; i < spans.length; ++i) {
var span = spans[i];
if (span.from != null && span.from == span.to && span.marker.clearWhenEmpty !== false)
spans.splice(i--, 1);
}
if (!spans.length) return null;
return spans;
}
// Used for un/re-doing changes from the history. Combines the
// result of computing the existing spans with the set of spans that
// existed in the history (so that deleting around a span and then
// undoing brings back the span).
function mergeOldSpans(doc, change) {
var old = getOldSpans(doc, change);
var stretched = stretchSpansOverChange(doc, change);
if (!old) return stretched;
if (!stretched) return old;
for (var i = 0; i < old.length; ++i) {
var oldCur = old[i], stretchCur = stretched[i];
if (oldCur && stretchCur) {
spans: for (var j = 0; j < stretchCur.length; ++j) {
var span = stretchCur[j];
for (var k = 0; k < oldCur.length; ++k)
if (oldCur[k].marker == span.marker) continue spans;
oldCur.push(span);
}
} else if (stretchCur) {
old[i] = stretchCur;
}
}
return old;
}
// Used to 'clip' out readOnly ranges when making a change.
function removeReadOnlyRanges(doc, from, to) {
var markers = null;
doc.iter(from.line, to.line + 1, function(line) {
if (line.markedSpans) for (var i = 0; i < line.markedSpans.length; ++i) {
var mark = line.markedSpans[i].marker;
if (mark.readOnly && (!markers || indexOf(markers, mark) == -1))
(markers || (markers = [])).push(mark);
}
});
if (!markers) return null;
var parts = [{from: from, to: to}];
for (var i = 0; i < markers.length; ++i) {
var mk = markers[i], m = mk.find(0);
for (var j = 0; j < parts.length; ++j) {
var p = parts[j];
if (cmp(p.to, m.from) < 0 || cmp(p.from, m.to) > 0) continue;
var newParts = [j, 1], dfrom = cmp(p.from, m.from), dto = cmp(p.to, m.to);
if (dfrom < 0 || !mk.inclusiveLeft && !dfrom)
newParts.push({from: p.from, to: m.from});
if (dto > 0 || !mk.inclusiveRight && !dto)
newParts.push({from: m.to, to: p.to});
parts.splice.apply(parts, newParts);
j += newParts.length - 1;
}
}
return parts;
}
// Connect or disconnect spans from a line.
function detachMarkedSpans(line) {
var spans = line.markedSpans;
if (!spans) return;
for (var i = 0; i < spans.length; ++i)
spans[i].marker.detachLine(line);
line.markedSpans = null;
}
function attachMarkedSpans(line, spans) {
if (!spans) return;
for (var i = 0; i < spans.length; ++i)
spans[i].marker.attachLine(line);
line.markedSpans = spans;
}
// Helpers used when computing which overlapping collapsed span
// counts as the larger one.
function extraLeft(marker) { return marker.inclusiveLeft ? -1 : 0; }
function extraRight(marker) { return marker.inclusiveRight ? 1 : 0; }
// Returns a number indicating which of two overlapping collapsed
// spans is larger (and thus includes the other). Falls back to
// comparing ids when the spans cover exactly the same range.
function compareCollapsedMarkers(a, b) {
var lenDiff = a.lines.length - b.lines.length;
if (lenDiff != 0) return lenDiff;
var aPos = a.find(), bPos = b.find();
var fromCmp = cmp(aPos.from, bPos.from) || extraLeft(a) - extraLeft(b);
if (fromCmp) return -fromCmp;
var toCmp = cmp(aPos.to, bPos.to) || extraRight(a) - extraRight(b);
if (toCmp) return toCmp;
return b.id - a.id;
}
// Find out whether a line ends or starts in a collapsed span. If
// so, return the marker for that span.
function collapsedSpanAtSide(line, start) {
var sps = sawCollapsedSpans && line.markedSpans, found;
if (sps) for (var sp, i = 0; i < sps.length; ++i) {
sp = sps[i];
if (sp.marker.collapsed && (start ? sp.from : sp.to) == null &&
(!found || compareCollapsedMarkers(found, sp.marker) < 0))
found = sp.marker;
}
return found;
}
function collapsedSpanAtStart(line) { return collapsedSpanAtSide(line, true); }
function collapsedSpanAtEnd(line) { return collapsedSpanAtSide(line, false); }
// Test whether there exists a collapsed span that partially
// overlaps (covers the start or end, but not both) of a new span.
// Such overlap is not allowed.
function conflictingCollapsedRange(doc, lineNo, from, to, marker) {
var line = getLine(doc, lineNo);
var sps = sawCollapsedSpans && line.markedSpans;
if (sps) for (var i = 0; i < sps.length; ++i) {
var sp = sps[i];
if (!sp.marker.collapsed) continue;
var found = sp.marker.find(0);
var fromCmp = cmp(found.from, from) || extraLeft(sp.marker) - extraLeft(marker);
var toCmp = cmp(found.to, to) || extraRight(sp.marker) - extraRight(marker);
if (fromCmp >= 0 && toCmp <= 0 || fromCmp <= 0 && toCmp >= 0) continue;
if (fromCmp <= 0 && (cmp(found.to, from) > 0 || (sp.marker.inclusiveRight && marker.inclusiveLeft)) ||
fromCmp >= 0 && (cmp(found.from, to) < 0 || (sp.marker.inclusiveLeft && marker.inclusiveRight)))
return true;
}
}
// A visual line is a line as drawn on the screen. Folding, for
// example, can cause multiple logical lines to appear on the same
// visual line. This finds the start of the visual line that the
// given line is part of (usually that is the line itself).
function visualLine(line) {
var merged;
while (merged = collapsedSpanAtStart(line))
line = merged.find(-1, true).line;
return line;
}
// Returns an array of logical lines that continue the visual line
// started by the argument, or undefined if there are no such lines.
function visualLineContinued(line) {
var merged, lines;
while (merged = collapsedSpanAtEnd(line)) {
line = merged.find(1, true).line;
(lines || (lines = [])).push(line);
}
return lines;
}
// Get the line number of the start of the visual line that the
// given line number is part of.
function visualLineNo(doc, lineN) {
var line = getLine(doc, lineN), vis = visualLine(line);
if (line == vis) return lineN;
return lineNo(vis);
}
// Get the line number of the start of the next visual line after
// the given line.
function visualLineEndNo(doc, lineN) {
if (lineN > doc.lastLine()) return lineN;
var line = getLine(doc, lineN), merged;
if (!lineIsHidden(doc, line)) return lineN;
while (merged = collapsedSpanAtEnd(line))
line = merged.find(1, true).line;
return lineNo(line) + 1;
}
// Compute whether a line is hidden. Lines count as hidden when they
// are part of a visual line that starts with another line, or when
// they are entirely covered by collapsed, non-widget span.
function lineIsHidden(doc, line) {
var sps = sawCollapsedSpans && line.markedSpans;
if (sps) for (var sp, i = 0; i < sps.length; ++i) {
sp = sps[i];
if (!sp.marker.collapsed) continue;
if (sp.from == null) return true;
if (sp.marker.widgetNode) continue;
if (sp.from == 0 && sp.marker.inclusiveLeft && lineIsHiddenInner(doc, line, sp))
return true;
}
}
function lineIsHiddenInner(doc, line, span) {
if (span.to == null) {
var end = span.marker.find(1, true);
return lineIsHiddenInner(doc, end.line, getMarkedSpanFor(end.line.markedSpans, span.marker));
}
if (span.marker.inclusiveRight && span.to == line.text.length)
return true;
for (var sp, i = 0; i < line.markedSpans.length; ++i) {
sp = line.markedSpans[i];
if (sp.marker.collapsed && !sp.marker.widgetNode && sp.from == span.to &&
(sp.to == null || sp.to != span.from) &&
(sp.marker.inclusiveLeft || span.marker.inclusiveRight) &&
lineIsHiddenInner(doc, line, sp)) return true;
}
}
// LINE WIDGETS
// Line widgets are block elements displayed above or below a line.
var LineWidget = CodeMirror.LineWidget = function(doc, node, options) {
if (options) for (var opt in options) if (options.hasOwnProperty(opt))
this[opt] = options[opt];
this.doc = doc;
this.node = node;
};
eventMixin(LineWidget);
function adjustScrollWhenAboveVisible(cm, line, diff) {
if (heightAtLine(line) < ((cm.curOp && cm.curOp.scrollTop) || cm.doc.scrollTop))
addToScrollPos(cm, null, diff);
}
LineWidget.prototype.clear = function() {
var cm = this.doc.cm, ws = this.line.widgets, line = this.line, no = lineNo(line);
if (no == null || !ws) return;
for (var i = 0; i < ws.length; ++i) if (ws[i] == this) ws.splice(i--, 1);
if (!ws.length) line.widgets = null;
var height = widgetHeight(this);
updateLineHeight(line, Math.max(0, line.height - height));
if (cm) runInOp(cm, function() {
adjustScrollWhenAboveVisible(cm, line, -height);
regLineChange(cm, no, "widget");
});
};
LineWidget.prototype.changed = function() {
var oldH = this.height, cm = this.doc.cm, line = this.line;
this.height = null;
var diff = widgetHeight(this) - oldH;
if (!diff) return;
updateLineHeight(line, line.height + diff);
if (cm) runInOp(cm, function() {
cm.curOp.forceUpdate = true;
adjustScrollWhenAboveVisible(cm, line, diff);
});
};
function widgetHeight(widget) {
if (widget.height != null) return widget.height;
var cm = widget.doc.cm;
if (!cm) return 0;
if (!contains(document.body, widget.node)) {
var parentStyle = "position: relative;";
if (widget.coverGutter)
parentStyle += "margin-left: -" + cm.display.gutters.offsetWidth + "px;";
if (widget.noHScroll)
parentStyle += "width: " + cm.display.wrapper.clientWidth + "px;";
removeChildrenAndAdd(cm.display.measure, elt("div", [widget.node], null, parentStyle));
}
return widget.height = widget.node.offsetHeight;
}
function addLineWidget(doc, handle, node, options) {
var widget = new LineWidget(doc, node, options);
var cm = doc.cm;
if (cm && widget.noHScroll) cm.display.alignWidgets = true;
changeLine(doc, handle, "widget", function(line) {
var widgets = line.widgets || (line.widgets = []);
if (widget.insertAt == null) widgets.push(widget);
else widgets.splice(Math.min(widgets.length - 1, Math.max(0, widget.insertAt)), 0, widget);
widget.line = line;
if (cm && !lineIsHidden(doc, line)) {
var aboveVisible = heightAtLine(line) < doc.scrollTop;
updateLineHeight(line, line.height + widgetHeight(widget));
if (aboveVisible) addToScrollPos(cm, null, widget.height);
cm.curOp.forceUpdate = true;
}
return true;
});
return widget;
}
// LINE DATA STRUCTURE
// Line objects. These hold state related to a line, including
// highlighting info (the styles array).
var Line = CodeMirror.Line = function(text, markedSpans, estimateHeight) {
this.text = text;
attachMarkedSpans(this, markedSpans);
this.height = estimateHeight ? estimateHeight(this) : 1;
};
eventMixin(Line);
Line.prototype.lineNo = function() { return lineNo(this); };
// Change the content (text, markers) of a line. Automatically
// invalidates cached information and tries to re-estimate the
// line's height.
function updateLine(line, text, markedSpans, estimateHeight) {
line.text = text;
if (line.stateAfter) line.stateAfter = null;
if (line.styles) line.styles = null;
if (line.order != null) line.order = null;
detachMarkedSpans(line);
attachMarkedSpans(line, markedSpans);
var estHeight = estimateHeight ? estimateHeight(line) : 1;
if (estHeight != line.height) updateLineHeight(line, estHeight);
}
// Detach a line from the document tree and its markers.
function cleanUpLine(line) {
line.parent = null;
detachMarkedSpans(line);
}
function extractLineClasses(type, output) {
if (type) for (;;) {
var lineClass = type.match(/(?:^|\s+)line-(background-)?(\S+)/);
if (!lineClass) break;
type = type.slice(0, lineClass.index) + type.slice(lineClass.index + lineClass[0].length);
var prop = lineClass[1] ? "bgClass" : "textClass";
if (output[prop] == null)
output[prop] = lineClass[2];
else if (!(new RegExp("(?:^|\s)" + lineClass[2] + "(?:$|\s)")).test(output[prop]))
output[prop] += " " + lineClass[2];
}
return type;
}
function callBlankLine(mode, state) {
if (mode.blankLine) return mode.blankLine(state);
if (!mode.innerMode) return;
var inner = CodeMirror.innerMode(mode, state);
if (inner.mode.blankLine) return inner.mode.blankLine(inner.state);
}
function readToken(mode, stream, state, inner) {
for (var i = 0; i < 10; i++) {
if (inner) inner[0] = CodeMirror.innerMode(mode, state).mode;
var style = mode.token(stream, state);
if (stream.pos > stream.start) return style;
}
throw new Error("Mode " + mode.name + " failed to advance stream.");
}
// Utility for getTokenAt and getLineTokens
function takeToken(cm, pos, precise, asArray) {
function getObj(copy) {
return {start: stream.start, end: stream.pos,
string: stream.current(),
type: style || null,
state: copy ? copyState(doc.mode, state) : state};
}
var doc = cm.doc, mode = doc.mode, style;
pos = clipPos(doc, pos);
var line = getLine(doc, pos.line), state = getStateBefore(cm, pos.line, precise);
var stream = new StringStream(line.text, cm.options.tabSize), tokens;
if (asArray) tokens = [];
while ((asArray || stream.pos < pos.ch) && !stream.eol()) {
stream.start = stream.pos;
style = readToken(mode, stream, state);
if (asArray) tokens.push(getObj(true));
}
return asArray ? tokens : getObj();
}
// Run the given mode's parser over a line, calling f for each token.
function runMode(cm, text, mode, state, f, lineClasses, forceToEnd) {
var flattenSpans = mode.flattenSpans;
if (flattenSpans == null) flattenSpans = cm.options.flattenSpans;
var curStart = 0, curStyle = null;
var stream = new StringStream(text, cm.options.tabSize), style;
var inner = cm.options.addModeClass && [null];
if (text == "") extractLineClasses(callBlankLine(mode, state), lineClasses);
while (!stream.eol()) {
if (stream.pos > cm.options.maxHighlightLength) {
flattenSpans = false;
if (forceToEnd) processLine(cm, text, state, stream.pos);
stream.pos = text.length;
style = null;
} else {
style = extractLineClasses(readToken(mode, stream, state, inner), lineClasses);
}
if (inner) {
var mName = inner[0].name;
if (mName) style = "m-" + (style ? mName + " " + style : mName);
}
if (!flattenSpans || curStyle != style) {
while (curStart < stream.start) {
curStart = Math.min(stream.start, curStart + 50000);
f(curStart, curStyle);
}
curStyle = style;
}
stream.start = stream.pos;
}
while (curStart < stream.pos) {
// Webkit seems to refuse to render text nodes longer than 57444 characters
var pos = Math.min(stream.pos, curStart + 50000);
f(pos, curStyle);
curStart = pos;
}
}
// Compute a style array (an array starting with a mode generation
// -- for invalidation -- followed by pairs of end positions and
// style strings), which is used to highlight the tokens on the
// line.
function highlightLine(cm, line, state, forceToEnd) {
// A styles array always starts with a number identifying the
// mode/overlays that it is based on (for easy invalidation).
var st = [cm.state.modeGen], lineClasses = {};
// Compute the base array of styles
runMode(cm, line.text, cm.doc.mode, state, function(end, style) {
st.push(end, style);
}, lineClasses, forceToEnd);
// Run overlays, adjust style array.
for (var o = 0; o < cm.state.overlays.length; ++o) {
var overlay = cm.state.overlays[o], i = 1, at = 0;
runMode(cm, line.text, overlay.mode, true, function(end, style) {
var start = i;
// Ensure there's a token end at the current position, and that i points at it
while (at < end) {
var i_end = st[i];
if (i_end > end)
st.splice(i, 1, end, st[i+1], i_end);
i += 2;
at = Math.min(end, i_end);
}
if (!style) return;
if (overlay.opaque) {
st.splice(start, i - start, end, "cm-overlay " + style);
i = start + 2;
} else {
for (; start < i; start += 2) {
var cur = st[start+1];
st[start+1] = (cur ? cur + " " : "") + "cm-overlay " + style;
}
}
}, lineClasses);
}
return {styles: st, classes: lineClasses.bgClass || lineClasses.textClass ? lineClasses : null};
}
function getLineStyles(cm, line, updateFrontier) {
if (!line.styles || line.styles[0] != cm.state.modeGen) {
var state = getStateBefore(cm, lineNo(line));
var result = highlightLine(cm, line, line.text.length > cm.options.maxHighlightLength ? copyState(cm.doc.mode, state) : state);
line.stateAfter = state;
line.styles = result.styles;
if (result.classes) line.styleClasses = result.classes;
else if (line.styleClasses) line.styleClasses = null;
if (updateFrontier === cm.doc.frontier) cm.doc.frontier++;
}
return line.styles;
}
// Lightweight form of highlight -- proceed over this line and
// update state, but don't save a style array. Used for lines that
// aren't currently visible.
function processLine(cm, text, state, startAt) {
var mode = cm.doc.mode;
var stream = new StringStream(text, cm.options.tabSize);
stream.start = stream.pos = startAt || 0;
if (text == "") callBlankLine(mode, state);
while (!stream.eol()) {
readToken(mode, stream, state);
stream.start = stream.pos;
}
}
// Convert a style as returned by a mode (either null, or a string
// containing one or more styles) to a CSS style. This is cached,
// and also looks for line-wide styles.
var styleToClassCache = {}, styleToClassCacheWithMode = {};
function interpretTokenStyle(style, options) {
if (!style || /^\s*$/.test(style)) return null;
var cache = options.addModeClass ? styleToClassCacheWithMode : styleToClassCache;
return cache[style] ||
(cache[style] = style.replace(/\S+/g, "cm-$&"));
}
// Render the DOM representation of the text of a line. Also builds
// up a 'line map', which points at the DOM nodes that represent
// specific stretches of text, and is used by the measuring code.
// The returned object contains the DOM node, this map, and
// information about line-wide styles that were set by the mode.
function buildLineContent(cm, lineView) {
// The padding-right forces the element to have a 'border', which
// is needed on Webkit to be able to get line-level bounding
// rectangles for it (in measureChar).
var content = elt("span", null, null, webkit ? "padding-right: .1px" : null);
var builder = {pre: elt("pre", [content], "CodeMirror-line"), content: content,
col: 0, pos: 0, cm: cm,
splitSpaces: (ie || webkit) && cm.getOption("lineWrapping")};
lineView.measure = {};
// Iterate over the logical lines that make up this visual line.
for (var i = 0; i <= (lineView.rest ? lineView.rest.length : 0); i++) {
var line = i ? lineView.rest[i - 1] : lineView.line, order;
builder.pos = 0;
builder.addToken = buildToken;
// Optionally wire in some hacks into the token-rendering
// algorithm, to deal with browser quirks.
if (hasBadBidiRects(cm.display.measure) && (order = getOrder(line)))
builder.addToken = buildTokenBadBidi(builder.addToken, order);
builder.map = [];
var allowFrontierUpdate = lineView != cm.display.externalMeasured && lineNo(line);
insertLineContent(line, builder, getLineStyles(cm, line, allowFrontierUpdate));
if (line.styleClasses) {
if (line.styleClasses.bgClass)
builder.bgClass = joinClasses(line.styleClasses.bgClass, builder.bgClass || "");
if (line.styleClasses.textClass)
builder.textClass = joinClasses(line.styleClasses.textClass, builder.textClass || "");
}
// Ensure at least a single node is present, for measuring.
if (builder.map.length == 0)
builder.map.push(0, 0, builder.content.appendChild(zeroWidthElement(cm.display.measure)));
// Store the map and a cache object for the current logical line
if (i == 0) {
lineView.measure.map = builder.map;
lineView.measure.cache = {};
} else {
(lineView.measure.maps || (lineView.measure.maps = [])).push(builder.map);
(lineView.measure.caches || (lineView.measure.caches = [])).push({});
}
}
// See issue #2901
if (webkit && /\bcm-tab\b/.test(builder.content.lastChild.className))
builder.content.className = "cm-tab-wrap-hack";
signal(cm, "renderLine", cm, lineView.line, builder.pre);
if (builder.pre.className)
builder.textClass = joinClasses(builder.pre.className, builder.textClass || "");
return builder;
}
function defaultSpecialCharPlaceholder(ch) {
var token = elt("span", "\u2022", "cm-invalidchar");
token.title = "\\u" + ch.charCodeAt(0).toString(16);
token.setAttribute("aria-label", token.title);
return token;
}
// Build up the DOM representation for a single token, and add it to
// the line map. Takes care to render special characters separately.
function buildToken(builder, text, style, startStyle, endStyle, title, css) {
if (!text) return;
var displayText = builder.splitSpaces ? text.replace(/ {3,}/g, splitSpaces) : text;
var special = builder.cm.state.specialChars, mustWrap = false;
if (!special.test(text)) {
builder.col += text.length;
var content = document.createTextNode(displayText);
builder.map.push(builder.pos, builder.pos + text.length, content);
if (ie && ie_version < 9) mustWrap = true;
builder.pos += text.length;
} else {
var content = document.createDocumentFragment(), pos = 0;
while (true) {
special.lastIndex = pos;
var m = special.exec(text);
var skipped = m ? m.index - pos : text.length - pos;
if (skipped) {
var txt = document.createTextNode(displayText.slice(pos, pos + skipped));
if (ie && ie_version < 9) content.appendChild(elt("span", [txt]));
else content.appendChild(txt);
builder.map.push(builder.pos, builder.pos + skipped, txt);
builder.col += skipped;
builder.pos += skipped;
}
if (!m) break;
pos += skipped + 1;
if (m[0] == "\t") {
var tabSize = builder.cm.options.tabSize, tabWidth = tabSize - builder.col % tabSize;
var txt = content.appendChild(elt("span", spaceStr(tabWidth), "cm-tab"));
txt.setAttribute("role", "presentation");
txt.setAttribute("cm-text", "\t");
builder.col += tabWidth;
} else if (m[0] == "\r" || m[0] == "\n") {
var txt = content.appendChild(elt("span", m[0] == "\r" ? "\u240d" : "\u2424", "cm-invalidchar"));
txt.setAttribute("cm-text", m[0]);
builder.col += 1;
} else {
var txt = builder.cm.options.specialCharPlaceholder(m[0]);
txt.setAttribute("cm-text", m[0]);
if (ie && ie_version < 9) content.appendChild(elt("span", [txt]));
else content.appendChild(txt);
builder.col += 1;
}
builder.map.push(builder.pos, builder.pos + 1, txt);
builder.pos++;
}
}
if (style || startStyle || endStyle || mustWrap || css) {
var fullStyle = style || "";
if (startStyle) fullStyle += startStyle;
if (endStyle) fullStyle += endStyle;
var token = elt("span", [content], fullStyle, css);
if (title) token.title = title;
return builder.content.appendChild(token);
}
builder.content.appendChild(content);
}
function splitSpaces(old) {
var out = " ";
for (var i = 0; i < old.length - 2; ++i) out += i % 2 ? " " : "\u00a0";
out += " ";
return out;
}
// Work around nonsense dimensions being reported for stretches of
// right-to-left text.
function buildTokenBadBidi(inner, order) {
return function(builder, text, style, startStyle, endStyle, title, css) {
style = style ? style + " cm-force-border" : "cm-force-border";
var start = builder.pos, end = start + text.length;
for (;;) {
// Find the part that overlaps with the start of this text
for (var i = 0; i < order.length; i++) {
var part = order[i];
if (part.to > start && part.from <= start) break;
}
if (part.to >= end) return inner(builder, text, style, startStyle, endStyle, title, css);
inner(builder, text.slice(0, part.to - start), style, startStyle, null, title, css);
startStyle = null;
text = text.slice(part.to - start);
start = part.to;
}
};
}
function buildCollapsedSpan(builder, size, marker, ignoreWidget) {
var widget = !ignoreWidget && marker.widgetNode;
if (widget) builder.map.push(builder.pos, builder.pos + size, widget);
if (!ignoreWidget && builder.cm.display.input.needsContentAttribute) {
if (!widget)
widget = builder.content.appendChild(document.createElement("span"));
widget.setAttribute("cm-marker", marker.id);
}
if (widget) {
builder.cm.display.input.setUneditable(widget);
builder.content.appendChild(widget);
}
builder.pos += size;
}
// Outputs a number of spans to make up a line, taking highlighting
// and marked text into account.
function insertLineContent(line, builder, styles) {
var spans = line.markedSpans, allText = line.text, at = 0;
if (!spans) {
for (var i = 1; i < styles.length; i+=2)
builder.addToken(builder, allText.slice(at, at = styles[i]), interpretTokenStyle(styles[i+1], builder.cm.options));
return;
}
var len = allText.length, pos = 0, i = 1, text = "", style, css;
var nextChange = 0, spanStyle, spanEndStyle, spanStartStyle, title, collapsed;
for (;;) {
if (nextChange == pos) { // Update current marker set
spanStyle = spanEndStyle = spanStartStyle = title = css = "";
collapsed = null; nextChange = Infinity;
var foundBookmarks = [];
for (var j = 0; j < spans.length; ++j) {
var sp = spans[j], m = sp.marker;
if (m.type == "bookmark" && sp.from == pos && m.widgetNode) {
foundBookmarks.push(m);
} else if (sp.from <= pos && (sp.to == null || sp.to > pos || m.collapsed && sp.to == pos && sp.from == pos)) {
if (sp.to != null && sp.to != pos && nextChange > sp.to) {
nextChange = sp.to;
spanEndStyle = "";
}
if (m.className) spanStyle += " " + m.className;
if (m.css) css = m.css;
if (m.startStyle && sp.from == pos) spanStartStyle += " " + m.startStyle;
if (m.endStyle && sp.to == nextChange) spanEndStyle += " " + m.endStyle;
if (m.title && !title) title = m.title;
if (m.collapsed && (!collapsed || compareCollapsedMarkers(collapsed.marker, m) < 0))
collapsed = sp;
} else if (sp.from > pos && nextChange > sp.from) {
nextChange = sp.from;
}
}
if (collapsed && (collapsed.from || 0) == pos) {
buildCollapsedSpan(builder, (collapsed.to == null ? len + 1 : collapsed.to) - pos,
collapsed.marker, collapsed.from == null);
if (collapsed.to == null) return;
if (collapsed.to == pos) collapsed = false;
}
if (!collapsed && foundBookmarks.length) for (var j = 0; j < foundBookmarks.length; ++j)
buildCollapsedSpan(builder, 0, foundBookmarks[j]);
}
if (pos >= len) break;
var upto = Math.min(len, nextChange);
while (true) {
if (text) {
var end = pos + text.length;
if (!collapsed) {
var tokenText = end > upto ? text.slice(0, upto - pos) : text;
builder.addToken(builder, tokenText, style ? style + spanStyle : spanStyle,
spanStartStyle, pos + tokenText.length == nextChange ? spanEndStyle : "", title, css);
}
if (end >= upto) {text = text.slice(upto - pos); pos = upto; break;}
pos = end;
spanStartStyle = "";
}
text = allText.slice(at, at = styles[i++]);
style = interpretTokenStyle(styles[i++], builder.cm.options);
}
}
}
// DOCUMENT DATA STRUCTURE
// By default, updates that start and end at the beginning of a line
// are treated specially, in order to make the association of line
// widgets and marker elements with the text behave more intuitive.
function isWholeLineUpdate(doc, change) {
return change.from.ch == 0 && change.to.ch == 0 && lst(change.text) == "" &&
(!doc.cm || doc.cm.options.wholeLineUpdateBefore);
}
// Perform a change on the document data structure.
function updateDoc(doc, change, markedSpans, estimateHeight) {
function spansFor(n) {return markedSpans ? markedSpans[n] : null;}
function update(line, text, spans) {
updateLine(line, text, spans, estimateHeight);
signalLater(line, "change", line, change);
}
function linesFor(start, end) {
for (var i = start, result = []; i < end; ++i)
result.push(new Line(text[i], spansFor(i), estimateHeight));
return result;
}
var from = change.from, to = change.to, text = change.text;
var firstLine = getLine(doc, from.line), lastLine = getLine(doc, to.line);
var lastText = lst(text), lastSpans = spansFor(text.length - 1), nlines = to.line - from.line;
// Adjust the line structure
if (change.full) {
doc.insert(0, linesFor(0, text.length));
doc.remove(text.length, doc.size - text.length);
} else if (isWholeLineUpdate(doc, change)) {
// This is a whole-line replace. Treated specially to make
// sure line objects move the way they are supposed to.
var added = linesFor(0, text.length - 1);
update(lastLine, lastLine.text, lastSpans);
if (nlines) doc.remove(from.line, nlines);
if (added.length) doc.insert(from.line, added);
} else if (firstLine == lastLine) {
if (text.length == 1) {
update(firstLine, firstLine.text.slice(0, from.ch) + lastText + firstLine.text.slice(to.ch), lastSpans);
} else {
var added = linesFor(1, text.length - 1);
added.push(new Line(lastText + firstLine.text.slice(to.ch), lastSpans, estimateHeight));
update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0));
doc.insert(from.line + 1, added);
}
} else if (text.length == 1) {
update(firstLine, firstLine.text.slice(0, from.ch) + text[0] + lastLine.text.slice(to.ch), spansFor(0));
doc.remove(from.line + 1, nlines);
} else {
update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0));
update(lastLine, lastText + lastLine.text.slice(to.ch), lastSpans);
var added = linesFor(1, text.length - 1);
if (nlines > 1) doc.remove(from.line + 1, nlines - 1);
doc.insert(from.line + 1, added);
}
signalLater(doc, "change", doc, change);
}
// The document is represented as a BTree consisting of leaves, with
// chunk of lines in them, and branches, with up to ten leaves or
// other branch nodes below them. The top node is always a branch
// node, and is the document object itself (meaning it has
// additional methods and properties).
//
// All nodes have parent links. The tree is used both to go from
// line numbers to line objects, and to go from objects to numbers.
// It also indexes by height, and is used to convert between height
// and line object, and to find the total height of the document.
//
// See also http://marijnhaverbeke.nl/blog/codemirror-line-tree.html
function LeafChunk(lines) {
this.lines = lines;
this.parent = null;
for (var i = 0, height = 0; i < lines.length; ++i) {
lines[i].parent = this;
height += lines[i].height;
}
this.height = height;
}
LeafChunk.prototype = {
chunkSize: function() { return this.lines.length; },
// Remove the n lines at offset 'at'.
removeInner: function(at, n) {
for (var i = at, e = at + n; i < e; ++i) {
var line = this.lines[i];
this.height -= line.height;
cleanUpLine(line);
signalLater(line, "delete");
}
this.lines.splice(at, n);
},
// Helper used to collapse a small branch into a single leaf.
collapse: function(lines) {
lines.push.apply(lines, this.lines);
},
// Insert the given array of lines at offset 'at', count them as
// having the given height.
insertInner: function(at, lines, height) {
this.height += height;
this.lines = this.lines.slice(0, at).concat(lines).concat(this.lines.slice(at));
for (var i = 0; i < lines.length; ++i) lines[i].parent = this;
},
// Used to iterate over a part of the tree.
iterN: function(at, n, op) {
for (var e = at + n; at < e; ++at)
if (op(this.lines[at])) return true;
}
};
function BranchChunk(children) {
this.children = children;
var size = 0, height = 0;
for (var i = 0; i < children.length; ++i) {
var ch = children[i];
size += ch.chunkSize(); height += ch.height;
ch.parent = this;
}
this.size = size;
this.height = height;
this.parent = null;
}
BranchChunk.prototype = {
chunkSize: function() { return this.size; },
removeInner: function(at, n) {
this.size -= n;
for (var i = 0; i < this.children.length; ++i) {
var child = this.children[i], sz = child.chunkSize();
if (at < sz) {
var rm = Math.min(n, sz - at), oldHeight = child.height;
child.removeInner(at, rm);
this.height -= oldHeight - child.height;
if (sz == rm) { this.children.splice(i--, 1); child.parent = null; }
if ((n -= rm) == 0) break;
at = 0;
} else at -= sz;
}
// If the result is smaller than 25 lines, ensure that it is a
// single leaf node.
if (this.size - n < 25 &&
(this.children.length > 1 || !(this.children[0] instanceof LeafChunk))) {
var lines = [];
this.collapse(lines);
this.children = [new LeafChunk(lines)];
this.children[0].parent = this;
}
},
collapse: function(lines) {
for (var i = 0; i < this.children.length; ++i) this.children[i].collapse(lines);
},
insertInner: function(at, lines, height) {
this.size += lines.length;
this.height += height;
for (var i = 0; i < this.children.length; ++i) {
var child = this.children[i], sz = child.chunkSize();
if (at <= sz) {
child.insertInner(at, lines, height);
if (child.lines && child.lines.length > 50) {
while (child.lines.length > 50) {
var spilled = child.lines.splice(child.lines.length - 25, 25);
var newleaf = new LeafChunk(spilled);
child.height -= newleaf.height;
this.children.splice(i + 1, 0, newleaf);
newleaf.parent = this;
}
this.maybeSpill();
}
break;
}
at -= sz;
}
},
// When a node has grown, check whether it should be split.
maybeSpill: function() {
if (this.children.length <= 10) return;
var me = this;
do {
var spilled = me.children.splice(me.children.length - 5, 5);
var sibling = new BranchChunk(spilled);
if (!me.parent) { // Become the parent node
var copy = new BranchChunk(me.children);
copy.parent = me;
me.children = [copy, sibling];
me = copy;
} else {
me.size -= sibling.size;
me.height -= sibling.height;
var myIndex = indexOf(me.parent.children, me);
me.parent.children.splice(myIndex + 1, 0, sibling);
}
sibling.parent = me.parent;
} while (me.children.length > 10);
me.parent.maybeSpill();
},
iterN: function(at, n, op) {
for (var i = 0; i < this.children.length; ++i) {
var child = this.children[i], sz = child.chunkSize();
if (at < sz) {
var used = Math.min(n, sz - at);
if (child.iterN(at, used, op)) return true;
if ((n -= used) == 0) break;
at = 0;
} else at -= sz;
}
}
};
var nextDocId = 0;
var Doc = CodeMirror.Doc = function(text, mode, firstLine, lineSep) {
if (!(this instanceof Doc)) return new Doc(text, mode, firstLine, lineSep);
if (firstLine == null) firstLine = 0;
BranchChunk.call(this, [new LeafChunk([new Line("", null)])]);
this.first = firstLine;
this.scrollTop = this.scrollLeft = 0;
this.cantEdit = false;
this.cleanGeneration = 1;
this.frontier = firstLine;
var start = Pos(firstLine, 0);
this.sel = simpleSelection(start);
this.history = new History(null);
this.id = ++nextDocId;
this.modeOption = mode;
this.lineSep = lineSep;
if (typeof text == "string") text = this.splitLines(text);
updateDoc(this, {from: start, to: start, text: text});
setSelection(this, simpleSelection(start), sel_dontScroll);
};
Doc.prototype = createObj(BranchChunk.prototype, {
constructor: Doc,
// Iterate over the document. Supports two forms -- with only one
// argument, it calls that for each line in the document. With
// three, it iterates over the range given by the first two (with
// the second being non-inclusive).
iter: function(from, to, op) {
if (op) this.iterN(from - this.first, to - from, op);
else this.iterN(this.first, this.first + this.size, from);
},
// Non-public interface for adding and removing lines.
insert: function(at, lines) {
var height = 0;
for (var i = 0; i < lines.length; ++i) height += lines[i].height;
this.insertInner(at - this.first, lines, height);
},
remove: function(at, n) { this.removeInner(at - this.first, n); },
// From here, the methods are part of the public interface. Most
// are also available from CodeMirror (editor) instances.
getValue: function(lineSep) {
var lines = getLines(this, this.first, this.first + this.size);
if (lineSep === false) return lines;
return lines.join(lineSep || this.lineSeparator());
},
setValue: docMethodOp(function(code) {
var top = Pos(this.first, 0), last = this.first + this.size - 1;
makeChange(this, {from: top, to: Pos(last, getLine(this, last).text.length),
text: this.splitLines(code), origin: "setValue", full: true}, true);
setSelection(this, simpleSelection(top));
}),
replaceRange: function(code, from, to, origin) {
from = clipPos(this, from);
to = to ? clipPos(this, to) : from;
replaceRange(this, code, from, to, origin);
},
getRange: function(from, to, lineSep) {
var lines = getBetween(this, clipPos(this, from), clipPos(this, to));
if (lineSep === false) return lines;
return lines.join(lineSep || this.lineSeparator());
},
getLine: function(line) {var l = this.getLineHandle(line); return l && l.text;},
getLineHandle: function(line) {if (isLine(this, line)) return getLine(this, line);},
getLineNumber: function(line) {return lineNo(line);},
getLineHandleVisualStart: function(line) {
if (typeof line == "number") line = getLine(this, line);
return visualLine(line);
},
lineCount: function() {return this.size;},
firstLine: function() {return this.first;},
lastLine: function() {return this.first + this.size - 1;},
clipPos: function(pos) {return clipPos(this, pos);},
getCursor: function(start) {
var range = this.sel.primary(), pos;
if (start == null || start == "head") pos = range.head;
else if (start == "anchor") pos = range.anchor;
else if (start == "end" || start == "to" || start === false) pos = range.to();
else pos = range.from();
return pos;
},
listSelections: function() { return this.sel.ranges; },
somethingSelected: function() {return this.sel.somethingSelected();},
setCursor: docMethodOp(function(line, ch, options) {
setSimpleSelection(this, clipPos(this, typeof line == "number" ? Pos(line, ch || 0) : line), null, options);
}),
setSelection: docMethodOp(function(anchor, head, options) {
setSimpleSelection(this, clipPos(this, anchor), clipPos(this, head || anchor), options);
}),
extendSelection: docMethodOp(function(head, other, options) {
extendSelection(this, clipPos(this, head), other && clipPos(this, other), options);
}),
extendSelections: docMethodOp(function(heads, options) {
extendSelections(this, clipPosArray(this, heads, options));
}),
extendSelectionsBy: docMethodOp(function(f, options) {
extendSelections(this, map(this.sel.ranges, f), options);
}),
setSelections: docMethodOp(function(ranges, primary, options) {
if (!ranges.length) return;
for (var i = 0, out = []; i < ranges.length; i++)
out[i] = new Range(clipPos(this, ranges[i].anchor),
clipPos(this, ranges[i].head));
if (primary == null) primary = Math.min(ranges.length - 1, this.sel.primIndex);
setSelection(this, normalizeSelection(out, primary), options);
}),
addSelection: docMethodOp(function(anchor, head, options) {
var ranges = this.sel.ranges.slice(0);
ranges.push(new Range(clipPos(this, anchor), clipPos(this, head || anchor)));
setSelection(this, normalizeSelection(ranges, ranges.length - 1), options);
}),
getSelection: function(lineSep) {
var ranges = this.sel.ranges, lines;
for (var i = 0; i < ranges.length; i++) {
var sel = getBetween(this, ranges[i].from(), ranges[i].to());
lines = lines ? lines.concat(sel) : sel;
}
if (lineSep === false) return lines;
else return lines.join(lineSep || this.lineSeparator());
},
getSelections: function(lineSep) {
var parts = [], ranges = this.sel.ranges;
for (var i = 0; i < ranges.length; i++) {
var sel = getBetween(this, ranges[i].from(), ranges[i].to());
if (lineSep !== false) sel = sel.join(lineSep || this.lineSeparator());
parts[i] = sel;
}
return parts;
},
replaceSelection: function(code, collapse, origin) {
var dup = [];
for (var i = 0; i < this.sel.ranges.length; i++)
dup[i] = code;
this.replaceSelections(dup, collapse, origin || "+input");
},
replaceSelections: docMethodOp(function(code, collapse, origin) {
var changes = [], sel = this.sel;
for (var i = 0; i < sel.ranges.length; i++) {
var range = sel.ranges[i];
changes[i] = {from: range.from(), to: range.to(), text: this.splitLines(code[i]), origin: origin};
}
var newSel = collapse && collapse != "end" && computeReplacedSel(this, changes, collapse);
for (var i = changes.length - 1; i >= 0; i--)
makeChange(this, changes[i]);
if (newSel) setSelectionReplaceHistory(this, newSel);
else if (this.cm) ensureCursorVisible(this.cm);
}),
undo: docMethodOp(function() {makeChangeFromHistory(this, "undo");}),
redo: docMethodOp(function() {makeChangeFromHistory(this, "redo");}),
undoSelection: docMethodOp(function() {makeChangeFromHistory(this, "undo", true);}),
redoSelection: docMethodOp(function() {makeChangeFromHistory(this, "redo", true);}),
setExtending: function(val) {this.extend = val;},
getExtending: function() {return this.extend;},
historySize: function() {
var hist = this.history, done = 0, undone = 0;
for (var i = 0; i < hist.done.length; i++) if (!hist.done[i].ranges) ++done;
for (var i = 0; i < hist.undone.length; i++) if (!hist.undone[i].ranges) ++undone;
return {undo: done, redo: undone};
},
clearHistory: function() {this.history = new History(this.history.maxGeneration);},
markClean: function() {
this.cleanGeneration = this.changeGeneration(true);
},
changeGeneration: function(forceSplit) {
if (forceSplit)
this.history.lastOp = this.history.lastSelOp = this.history.lastOrigin = null;
return this.history.generation;
},
isClean: function (gen) {
return this.history.generation == (gen || this.cleanGeneration);
},
getHistory: function() {
return {done: copyHistoryArray(this.history.done),
undone: copyHistoryArray(this.history.undone)};
},
setHistory: function(histData) {
var hist = this.history = new History(this.history.maxGeneration);
hist.done = copyHistoryArray(histData.done.slice(0), null, true);
hist.undone = copyHistoryArray(histData.undone.slice(0), null, true);
},
addLineClass: docMethodOp(function(handle, where, cls) {
return changeLine(this, handle, where == "gutter" ? "gutter" : "class", function(line) {
var prop = where == "text" ? "textClass"
: where == "background" ? "bgClass"
: where == "gutter" ? "gutterClass" : "wrapClass";
if (!line[prop]) line[prop] = cls;
else if (classTest(cls).test(line[prop])) return false;
else line[prop] += " " + cls;
return true;
});
}),
removeLineClass: docMethodOp(function(handle, where, cls) {
return changeLine(this, handle, where == "gutter" ? "gutter" : "class", function(line) {
var prop = where == "text" ? "textClass"
: where == "background" ? "bgClass"
: where == "gutter" ? "gutterClass" : "wrapClass";
var cur = line[prop];
if (!cur) return false;
else if (cls == null) line[prop] = null;
else {
var found = cur.match(classTest(cls));
if (!found) return false;
var end = found.index + found[0].length;
line[prop] = cur.slice(0, found.index) + (!found.index || end == cur.length ? "" : " ") + cur.slice(end) || null;
}
return true;
});
}),
addLineWidget: docMethodOp(function(handle, node, options) {
return addLineWidget(this, handle, node, options);
}),
removeLineWidget: function(widget) { widget.clear(); },
markText: function(from, to, options) {
return markText(this, clipPos(this, from), clipPos(this, to), options, "range");
},
setBookmark: function(pos, options) {
var realOpts = {replacedWith: options && (options.nodeType == null ? options.widget : options),
insertLeft: options && options.insertLeft,
clearWhenEmpty: false, shared: options && options.shared,
handleMouseEvents: options && options.handleMouseEvents};
pos = clipPos(this, pos);
return markText(this, pos, pos, realOpts, "bookmark");
},
findMarksAt: function(pos) {
pos = clipPos(this, pos);
var markers = [], spans = getLine(this, pos.line).markedSpans;
if (spans) for (var i = 0; i < spans.length; ++i) {
var span = spans[i];
if ((span.from == null || span.from <= pos.ch) &&
(span.to == null || span.to >= pos.ch))
markers.push(span.marker.parent || span.marker);
}
return markers;
},
findMarks: function(from, to, filter) {
from = clipPos(this, from); to = clipPos(this, to);
var found = [], lineNo = from.line;
this.iter(from.line, to.line + 1, function(line) {
var spans = line.markedSpans;
if (spans) for (var i = 0; i < spans.length; i++) {
var span = spans[i];
if (!(lineNo == from.line && from.ch > span.to ||
span.from == null && lineNo != from.line||
lineNo == to.line && span.from > to.ch) &&
(!filter || filter(span.marker)))
found.push(span.marker.parent || span.marker);
}
++lineNo;
});
return found;
},
getAllMarks: function() {
var markers = [];
this.iter(function(line) {
var sps = line.markedSpans;
if (sps) for (var i = 0; i < sps.length; ++i)
if (sps[i].from != null) markers.push(sps[i].marker);
});
return markers;
},
posFromIndex: function(off) {
var ch, lineNo = this.first;
this.iter(function(line) {
var sz = line.text.length + 1;
if (sz > off) { ch = off; return true; }
off -= sz;
++lineNo;
});
return clipPos(this, Pos(lineNo, ch));
},
indexFromPos: function (coords) {
coords = clipPos(this, coords);
var index = coords.ch;
if (coords.line < this.first || coords.ch < 0) return 0;
this.iter(this.first, coords.line, function (line) {
index += line.text.length + 1;
});
return index;
},
copy: function(copyHistory) {
var doc = new Doc(getLines(this, this.first, this.first + this.size),
this.modeOption, this.first, this.lineSep);
doc.scrollTop = this.scrollTop; doc.scrollLeft = this.scrollLeft;
doc.sel = this.sel;
doc.extend = false;
if (copyHistory) {
doc.history.undoDepth = this.history.undoDepth;
doc.setHistory(this.getHistory());
}
return doc;
},
linkedDoc: function(options) {
if (!options) options = {};
var from = this.first, to = this.first + this.size;
if (options.from != null && options.from > from) from = options.from;
if (options.to != null && options.to < to) to = options.to;
var copy = new Doc(getLines(this, from, to), options.mode || this.modeOption, from, this.lineSep);
if (options.sharedHist) copy.history = this.history;
(this.linked || (this.linked = [])).push({doc: copy, sharedHist: options.sharedHist});
copy.linked = [{doc: this, isParent: true, sharedHist: options.sharedHist}];
copySharedMarkers(copy, findSharedMarkers(this));
return copy;
},
unlinkDoc: function(other) {
if (other instanceof CodeMirror) other = other.doc;
if (this.linked) for (var i = 0; i < this.linked.length; ++i) {
var link = this.linked[i];
if (link.doc != other) continue;
this.linked.splice(i, 1);
other.unlinkDoc(this);
detachSharedMarkers(findSharedMarkers(this));
break;
}
// If the histories were shared, split them again
if (other.history == this.history) {
var splitIds = [other.id];
linkedDocs(other, function(doc) {splitIds.push(doc.id);}, true);
other.history = new History(null);
other.history.done = copyHistoryArray(this.history.done, splitIds);
other.history.undone = copyHistoryArray(this.history.undone, splitIds);
}
},
iterLinkedDocs: function(f) {linkedDocs(this, f);},
getMode: function() {return this.mode;},
getEditor: function() {return this.cm;},
splitLines: function(str) {
if (this.lineSep) return str.split(this.lineSep);
return splitLinesAuto(str);
},
lineSeparator: function() { return this.lineSep || "\n"; }
});
// Public alias.
Doc.prototype.eachLine = Doc.prototype.iter;
// Set up methods on CodeMirror's prototype to redirect to the editor's document.
var dontDelegate = "iter insert remove copy getEditor constructor".split(" ");
for (var prop in Doc.prototype) if (Doc.prototype.hasOwnProperty(prop) && indexOf(dontDelegate, prop) < 0)
CodeMirror.prototype[prop] = (function(method) {
return function() {return method.apply(this.doc, arguments);};
})(Doc.prototype[prop]);
eventMixin(Doc);
// Call f for all linked documents.
function linkedDocs(doc, f, sharedHistOnly) {
function propagate(doc, skip, sharedHist) {
if (doc.linked) for (var i = 0; i < doc.linked.length; ++i) {
var rel = doc.linked[i];
if (rel.doc == skip) continue;
var shared = sharedHist && rel.sharedHist;
if (sharedHistOnly && !shared) continue;
f(rel.doc, shared);
propagate(rel.doc, doc, shared);
}
}
propagate(doc, null, true);
}
// Attach a document to an editor.
function attachDoc(cm, doc) {
if (doc.cm) throw new Error("This document is already in use.");
cm.doc = doc;
doc.cm = cm;
estimateLineHeights(cm);
loadMode(cm);
if (!cm.options.lineWrapping) findMaxLine(cm);
cm.options.mode = doc.modeOption;
regChange(cm);
}
// LINE UTILITIES
// Find the line object corresponding to the given line number.
function getLine(doc, n) {
n -= doc.first;
if (n < 0 || n >= doc.size) throw new Error("There is no line " + (n + doc.first) + " in the document.");
for (var chunk = doc; !chunk.lines;) {
for (var i = 0;; ++i) {
var child = chunk.children[i], sz = child.chunkSize();
if (n < sz) { chunk = child; break; }
n -= sz;
}
}
return chunk.lines[n];
}
// Get the part of a document between two positions, as an array of
// strings.
function getBetween(doc, start, end) {
var out = [], n = start.line;
doc.iter(start.line, end.line + 1, function(line) {
var text = line.text;
if (n == end.line) text = text.slice(0, end.ch);
if (n == start.line) text = text.slice(start.ch);
out.push(text);
++n;
});
return out;
}
// Get the lines between from and to, as array of strings.
function getLines(doc, from, to) {
var out = [];
doc.iter(from, to, function(line) { out.push(line.text); });
return out;
}
// Update the height of a line, propagating the height change
// upwards to parent nodes.
function updateLineHeight(line, height) {
var diff = height - line.height;
if (diff) for (var n = line; n; n = n.parent) n.height += diff;
}
// Given a line object, find its line number by walking up through
// its parent links.
function lineNo(line) {
if (line.parent == null) return null;
var cur = line.parent, no = indexOf(cur.lines, line);
for (var chunk = cur.parent; chunk; cur = chunk, chunk = chunk.parent) {
for (var i = 0;; ++i) {
if (chunk.children[i] == cur) break;
no += chunk.children[i].chunkSize();
}
}
return no + cur.first;
}
// Find the line at the given vertical position, using the height
// information in the document tree.
function lineAtHeight(chunk, h) {
var n = chunk.first;
outer: do {
for (var i = 0; i < chunk.children.length; ++i) {
var child = chunk.children[i], ch = child.height;
if (h < ch) { chunk = child; continue outer; }
h -= ch;
n += child.chunkSize();
}
return n;
} while (!chunk.lines);
for (var i = 0; i < chunk.lines.length; ++i) {
var line = chunk.lines[i], lh = line.height;
if (h < lh) break;
h -= lh;
}
return n + i;
}
// Find the height above the given line.
function heightAtLine(lineObj) {
lineObj = visualLine(lineObj);
var h = 0, chunk = lineObj.parent;
for (var i = 0; i < chunk.lines.length; ++i) {
var line = chunk.lines[i];
if (line == lineObj) break;
else h += line.height;
}
for (var p = chunk.parent; p; chunk = p, p = chunk.parent) {
for (var i = 0; i < p.children.length; ++i) {
var cur = p.children[i];
if (cur == chunk) break;
else h += cur.height;
}
}
return h;
}
// Get the bidi ordering for the given line (and cache it). Returns
// false for lines that are fully left-to-right, and an array of
// BidiSpan objects otherwise.
function getOrder(line) {
var order = line.order;
if (order == null) order = line.order = bidiOrdering(line.text);
return order;
}
// HISTORY
function History(startGen) {
// Arrays of change events and selections. Doing something adds an
// event to done and clears undo. Undoing moves events from done
// to undone, redoing moves them in the other direction.
this.done = []; this.undone = [];
this.undoDepth = Infinity;
// Used to track when changes can be merged into a single undo
// event
this.lastModTime = this.lastSelTime = 0;
this.lastOp = this.lastSelOp = null;
this.lastOrigin = this.lastSelOrigin = null;
// Used by the isClean() method
this.generation = this.maxGeneration = startGen || 1;
}
// Create a history change event from an updateDoc-style change
// object.
function historyChangeFromChange(doc, change) {
var histChange = {from: copyPos(change.from), to: changeEnd(change), text: getBetween(doc, change.from, change.to)};
attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1);
linkedDocs(doc, function(doc) {attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1);}, true);
return histChange;
}
// Pop all selection events off the end of a history array. Stop at
// a change event.
function clearSelectionEvents(array) {
while (array.length) {
var last = lst(array);
if (last.ranges) array.pop();
else break;
}
}
// Find the top change event in the history. Pop off selection
// events that are in the way.
function lastChangeEvent(hist, force) {
if (force) {
clearSelectionEvents(hist.done);
return lst(hist.done);
} else if (hist.done.length && !lst(hist.done).ranges) {
return lst(hist.done);
} else if (hist.done.length > 1 && !hist.done[hist.done.length - 2].ranges) {
hist.done.pop();
return lst(hist.done);
}
}
// Register a change in the history. Merges changes that are within
// a single operation, ore are close together with an origin that
// allows merging (starting with "+") into a single event.
function addChangeToHistory(doc, change, selAfter, opId) {
var hist = doc.history;
hist.undone.length = 0;
var time = +new Date, cur;
if ((hist.lastOp == opId ||
hist.lastOrigin == change.origin && change.origin &&
((change.origin.charAt(0) == "+" && doc.cm && hist.lastModTime > time - doc.cm.options.historyEventDelay) ||
change.origin.charAt(0) == "*")) &&
(cur = lastChangeEvent(hist, hist.lastOp == opId))) {
// Merge this change into the last event
var last = lst(cur.changes);
if (cmp(change.from, change.to) == 0 && cmp(change.from, last.to) == 0) {
// Optimized case for simple insertion -- don't want to add
// new changesets for every character typed
last.to = changeEnd(change);
} else {
// Add new sub-event
cur.changes.push(historyChangeFromChange(doc, change));
}
} else {
// Can not be merged, start a new event.
var before = lst(hist.done);
if (!before || !before.ranges)
pushSelectionToHistory(doc.sel, hist.done);
cur = {changes: [historyChangeFromChange(doc, change)],
generation: hist.generation};
hist.done.push(cur);
while (hist.done.length > hist.undoDepth) {
hist.done.shift();
if (!hist.done[0].ranges) hist.done.shift();
}
}
hist.done.push(selAfter);
hist.generation = ++hist.maxGeneration;
hist.lastModTime = hist.lastSelTime = time;
hist.lastOp = hist.lastSelOp = opId;
hist.lastOrigin = hist.lastSelOrigin = change.origin;
if (!last) signal(doc, "historyAdded");
}
function selectionEventCanBeMerged(doc, origin, prev, sel) {
var ch = origin.charAt(0);
return ch == "*" ||
ch == "+" &&
prev.ranges.length == sel.ranges.length &&
prev.somethingSelected() == sel.somethingSelected() &&
new Date - doc.history.lastSelTime <= (doc.cm ? doc.cm.options.historyEventDelay : 500);
}
// Called whenever the selection changes, sets the new selection as
// the pending selection in the history, and pushes the old pending
// selection into the 'done' array when it was significantly
// different (in number of selected ranges, emptiness, or time).
function addSelectionToHistory(doc, sel, opId, options) {
var hist = doc.history, origin = options && options.origin;
// A new event is started when the previous origin does not match
// the current, or the origins don't allow matching. Origins
// starting with * are always merged, those starting with + are
// merged when similar and close together in time.
if (opId == hist.lastSelOp ||
(origin && hist.lastSelOrigin == origin &&
(hist.lastModTime == hist.lastSelTime && hist.lastOrigin == origin ||
selectionEventCanBeMerged(doc, origin, lst(hist.done), sel))))
hist.done[hist.done.length - 1] = sel;
else
pushSelectionToHistory(sel, hist.done);
hist.lastSelTime = +new Date;
hist.lastSelOrigin = origin;
hist.lastSelOp = opId;
if (options && options.clearRedo !== false)
clearSelectionEvents(hist.undone);
}
function pushSelectionToHistory(sel, dest) {
var top = lst(dest);
if (!(top && top.ranges && top.equals(sel)))
dest.push(sel);
}
// Used to store marked span information in the history.
function attachLocalSpans(doc, change, from, to) {
var existing = change["spans_" + doc.id], n = 0;
doc.iter(Math.max(doc.first, from), Math.min(doc.first + doc.size, to), function(line) {
if (line.markedSpans)
(existing || (existing = change["spans_" + doc.id] = {}))[n] = line.markedSpans;
++n;
});
}
// When un/re-doing restores text containing marked spans, those
// that have been explicitly cleared should not be restored.
function removeClearedSpans(spans) {
if (!spans) return null;
for (var i = 0, out; i < spans.length; ++i) {
if (spans[i].marker.explicitlyCleared) { if (!out) out = spans.slice(0, i); }
else if (out) out.push(spans[i]);
}
return !out ? spans : out.length ? out : null;
}
// Retrieve and filter the old marked spans stored in a change event.
function getOldSpans(doc, change) {
var found = change["spans_" + doc.id];
if (!found) return null;
for (var i = 0, nw = []; i < change.text.length; ++i)
nw.push(removeClearedSpans(found[i]));
return nw;
}
// Used both to provide a JSON-safe object in .getHistory, and, when
// detaching a document, to split the history in two
function copyHistoryArray(events, newGroup, instantiateSel) {
for (var i = 0, copy = []; i < events.length; ++i) {
var event = events[i];
if (event.ranges) {
copy.push(instantiateSel ? Selection.prototype.deepCopy.call(event) : event);
continue;
}
var changes = event.changes, newChanges = [];
copy.push({changes: newChanges});
for (var j = 0; j < changes.length; ++j) {
var change = changes[j], m;
newChanges.push({from: change.from, to: change.to, text: change.text});
if (newGroup) for (var prop in change) if (m = prop.match(/^spans_(\d+)$/)) {
if (indexOf(newGroup, Number(m[1])) > -1) {
lst(newChanges)[prop] = change[prop];
delete change[prop];
}
}
}
}
return copy;
}
// Rebasing/resetting history to deal with externally-sourced changes
function rebaseHistSelSingle(pos, from, to, diff) {
if (to < pos.line) {
pos.line += diff;
} else if (from < pos.line) {
pos.line = from;
pos.ch = 0;
}
}
// Tries to rebase an array of history events given a change in the
// document. If the change touches the same lines as the event, the
// event, and everything 'behind' it, is discarded. If the change is
// before the event, the event's positions are updated. Uses a
// copy-on-write scheme for the positions, to avoid having to
// reallocate them all on every rebase, but also avoid problems with
// shared position objects being unsafely updated.
function rebaseHistArray(array, from, to, diff) {
for (var i = 0; i < array.length; ++i) {
var sub = array[i], ok = true;
if (sub.ranges) {
if (!sub.copied) { sub = array[i] = sub.deepCopy(); sub.copied = true; }
for (var j = 0; j < sub.ranges.length; j++) {
rebaseHistSelSingle(sub.ranges[j].anchor, from, to, diff);
rebaseHistSelSingle(sub.ranges[j].head, from, to, diff);
}
continue;
}
for (var j = 0; j < sub.changes.length; ++j) {
var cur = sub.changes[j];
if (to < cur.from.line) {
cur.from = Pos(cur.from.line + diff, cur.from.ch);
cur.to = Pos(cur.to.line + diff, cur.to.ch);
} else if (from <= cur.to.line) {
ok = false;
break;
}
}
if (!ok) {
array.splice(0, i + 1);
i = 0;
}
}
}
function rebaseHist(hist, change) {
var from = change.from.line, to = change.to.line, diff = change.text.length - (to - from) - 1;
rebaseHistArray(hist.done, from, to, diff);
rebaseHistArray(hist.undone, from, to, diff);
}
// EVENT UTILITIES
// Due to the fact that we still support jurassic IE versions, some
// compatibility wrappers are needed.
var e_preventDefault = CodeMirror.e_preventDefault = function(e) {
if (e.preventDefault) e.preventDefault();
else e.returnValue = false;
};
var e_stopPropagation = CodeMirror.e_stopPropagation = function(e) {
if (e.stopPropagation) e.stopPropagation();
else e.cancelBubble = true;
};
function e_defaultPrevented(e) {
return e.defaultPrevented != null ? e.defaultPrevented : e.returnValue == false;
}
var e_stop = CodeMirror.e_stop = function(e) {e_preventDefault(e); e_stopPropagation(e);};
function e_target(e) {return e.target || e.srcElement;}
function e_button(e) {
var b = e.which;
if (b == null) {
if (e.button & 1) b = 1;
else if (e.button & 2) b = 3;
else if (e.button & 4) b = 2;
}
if (mac && e.ctrlKey && b == 1) b = 3;
return b;
}
// EVENT HANDLING
// Lightweight event framework. on/off also work on DOM nodes,
// registering native DOM handlers.
var on = CodeMirror.on = function(emitter, type, f) {
if (emitter.addEventListener)
emitter.addEventListener(type, f, false);
else if (emitter.attachEvent)
emitter.attachEvent("on" + type, f);
else {
var map = emitter._handlers || (emitter._handlers = {});
var arr = map[type] || (map[type] = []);
arr.push(f);
}
};
var off = CodeMirror.off = function(emitter, type, f) {
if (emitter.removeEventListener)
emitter.removeEventListener(type, f, false);
else if (emitter.detachEvent)
emitter.detachEvent("on" + type, f);
else {
var arr = emitter._handlers && emitter._handlers[type];
if (!arr) return;
for (var i = 0; i < arr.length; ++i)
if (arr[i] == f) { arr.splice(i, 1); break; }
}
};
var signal = CodeMirror.signal = function(emitter, type /*, values...*/) {
var arr = emitter._handlers && emitter._handlers[type];
if (!arr) return;
var args = Array.prototype.slice.call(arguments, 2);
for (var i = 0; i < arr.length; ++i) arr[i].apply(null, args);
};
var orphanDelayedCallbacks = null;
// Often, we want to signal events at a point where we are in the
// middle of some work, but don't want the handler to start calling
// other methods on the editor, which might be in an inconsistent
// state or simply not expect any other events to happen.
// signalLater looks whether there are any handlers, and schedules
// them to be executed when the last operation ends, or, if no
// operation is active, when a timeout fires.
function signalLater(emitter, type /*, values...*/) {
var arr = emitter._handlers && emitter._handlers[type];
if (!arr) return;
var args = Array.prototype.slice.call(arguments, 2), list;
if (operationGroup) {
list = operationGroup.delayedCallbacks;
} else if (orphanDelayedCallbacks) {
list = orphanDelayedCallbacks;
} else {
list = orphanDelayedCallbacks = [];
setTimeout(fireOrphanDelayed, 0);
}
function bnd(f) {return function(){f.apply(null, args);};};
for (var i = 0; i < arr.length; ++i)
list.push(bnd(arr[i]));
}
function fireOrphanDelayed() {
var delayed = orphanDelayedCallbacks;
orphanDelayedCallbacks = null;
for (var i = 0; i < delayed.length; ++i) delayed[i]();
}
// The DOM events that CodeMirror handles can be overridden by
// registering a (non-DOM) handler on the editor for the event name,
// and preventDefault-ing the event in that handler.
function signalDOMEvent(cm, e, override) {
if (typeof e == "string")
e = {type: e, preventDefault: function() { this.defaultPrevented = true; }};
signal(cm, override || e.type, cm, e);
return e_defaultPrevented(e) || e.codemirrorIgnore;
}
function signalCursorActivity(cm) {
var arr = cm._handlers && cm._handlers.cursorActivity;
if (!arr) return;
var set = cm.curOp.cursorActivityHandlers || (cm.curOp.cursorActivityHandlers = []);
for (var i = 0; i < arr.length; ++i) if (indexOf(set, arr[i]) == -1)
set.push(arr[i]);
}
function hasHandler(emitter, type) {
var arr = emitter._handlers && emitter._handlers[type];
return arr && arr.length > 0;
}
// Add on and off methods to a constructor's prototype, to make
// registering events on such objects more convenient.
function eventMixin(ctor) {
ctor.prototype.on = function(type, f) {on(this, type, f);};
ctor.prototype.off = function(type, f) {off(this, type, f);};
}
// MISC UTILITIES
// Number of pixels added to scroller and sizer to hide scrollbar
var scrollerGap = 30;
// Returned or thrown by various protocols to signal 'I'm not
// handling this'.
var Pass = CodeMirror.Pass = {toString: function(){return "CodeMirror.Pass";}};
// Reused option objects for setSelection & friends
var sel_dontScroll = {scroll: false}, sel_mouse = {origin: "*mouse"}, sel_move = {origin: "+move"};
function Delayed() {this.id = null;}
Delayed.prototype.set = function(ms, f) {
clearTimeout(this.id);
this.id = setTimeout(f, ms);
};
// Counts the column offset in a string, taking tabs into account.
// Used mostly to find indentation.
var countColumn = CodeMirror.countColumn = function(string, end, tabSize, startIndex, startValue) {
if (end == null) {
end = string.search(/[^\s\u00a0]/);
if (end == -1) end = string.length;
}
for (var i = startIndex || 0, n = startValue || 0;;) {
var nextTab = string.indexOf("\t", i);
if (nextTab < 0 || nextTab >= end)
return n + (end - i);
n += nextTab - i;
n += tabSize - (n % tabSize);
i = nextTab + 1;
}
};
// The inverse of countColumn -- find the offset that corresponds to
// a particular column.
var findColumn = CodeMirror.findColumn = function(string, goal, tabSize) {
for (var pos = 0, col = 0;;) {
var nextTab = string.indexOf("\t", pos);
if (nextTab == -1) nextTab = string.length;
var skipped = nextTab - pos;
if (nextTab == string.length || col + skipped >= goal)
return pos + Math.min(skipped, goal - col);
col += nextTab - pos;
col += tabSize - (col % tabSize);
pos = nextTab + 1;
if (col >= goal) return pos;
}
}
var spaceStrs = [""];
function spaceStr(n) {
while (spaceStrs.length <= n)
spaceStrs.push(lst(spaceStrs) + " ");
return spaceStrs[n];
}
function lst(arr) { return arr[arr.length-1]; }
var selectInput = function(node) { node.select(); };
if (ios) // Mobile Safari apparently has a bug where select() is broken.
selectInput = function(node) { node.selectionStart = 0; node.selectionEnd = node.value.length; };
else if (ie) // Suppress mysterious IE10 errors
selectInput = function(node) { try { node.select(); } catch(_e) {} };
function indexOf(array, elt) {
for (var i = 0; i < array.length; ++i)
if (array[i] == elt) return i;
return -1;
}
function map(array, f) {
var out = [];
for (var i = 0; i < array.length; i++) out[i] = f(array[i], i);
return out;
}
function nothing() {}
function createObj(base, props) {
var inst;
if (Object.create) {
inst = Object.create(base);
} else {
nothing.prototype = base;
inst = new nothing();
}
if (props) copyObj(props, inst);
return inst;
};
function copyObj(obj, target, overwrite) {
if (!target) target = {};
for (var prop in obj)
if (obj.hasOwnProperty(prop) && (overwrite !== false || !target.hasOwnProperty(prop)))
target[prop] = obj[prop];
return target;
}
function bind(f) {
var args = Array.prototype.slice.call(arguments, 1);
return function(){return f.apply(null, args);};
}
var nonASCIISingleCaseWordChar = /[\u00df\u0587\u0590-\u05f4\u0600-\u06ff\u3040-\u309f\u30a0-\u30ff\u3400-\u4db5\u4e00-\u9fcc\uac00-\ud7af]/;
var isWordCharBasic = CodeMirror.isWordChar = function(ch) {
return /\w/.test(ch) || ch > "\x80" &&
(ch.toUpperCase() != ch.toLowerCase() || nonASCIISingleCaseWordChar.test(ch));
};
function isWordChar(ch, helper) {
if (!helper) return isWordCharBasic(ch);
if (helper.source.indexOf("\\w") > -1 && isWordCharBasic(ch)) return true;
return helper.test(ch);
}
function isEmpty(obj) {
for (var n in obj) if (obj.hasOwnProperty(n) && obj[n]) return false;
return true;
}
// Extending unicode characters. A series of a non-extending char +
// any number of extending chars is treated as a single unit as far
// as editing and measuring is concerned. This is not fully correct,
// since some scripts/fonts/browsers also treat other configurations
// of code points as a group.
var extendingChars = /[\u0300-\u036f\u0483-\u0489\u0591-\u05bd\u05bf\u05c1\u05c2\u05c4\u05c5\u05c7\u0610-\u061a\u064b-\u065e\u0670\u06d6-\u06dc\u06de-\u06e4\u06e7\u06e8\u06ea-\u06ed\u0711\u0730-\u074a\u07a6-\u07b0\u07eb-\u07f3\u0816-\u0819\u081b-\u0823\u0825-\u0827\u0829-\u082d\u0900-\u0902\u093c\u0941-\u0948\u094d\u0951-\u0955\u0962\u0963\u0981\u09bc\u09be\u09c1-\u09c4\u09cd\u09d7\u09e2\u09e3\u0a01\u0a02\u0a3c\u0a41\u0a42\u0a47\u0a48\u0a4b-\u0a4d\u0a51\u0a70\u0a71\u0a75\u0a81\u0a82\u0abc\u0ac1-\u0ac5\u0ac7\u0ac8\u0acd\u0ae2\u0ae3\u0b01\u0b3c\u0b3e\u0b3f\u0b41-\u0b44\u0b4d\u0b56\u0b57\u0b62\u0b63\u0b82\u0bbe\u0bc0\u0bcd\u0bd7\u0c3e-\u0c40\u0c46-\u0c48\u0c4a-\u0c4d\u0c55\u0c56\u0c62\u0c63\u0cbc\u0cbf\u0cc2\u0cc6\u0ccc\u0ccd\u0cd5\u0cd6\u0ce2\u0ce3\u0d3e\u0d41-\u0d44\u0d4d\u0d57\u0d62\u0d63\u0dca\u0dcf\u0dd2-\u0dd4\u0dd6\u0ddf\u0e31\u0e34-\u0e3a\u0e47-\u0e4e\u0eb1\u0eb4-\u0eb9\u0ebb\u0ebc\u0ec8-\u0ecd\u0f18\u0f19\u0f35\u0f37\u0f39\u0f71-\u0f7e\u0f80-\u0f84\u0f86\u0f87\u0f90-\u0f97\u0f99-\u0fbc\u0fc6\u102d-\u1030\u1032-\u1037\u1039\u103a\u103d\u103e\u1058\u1059\u105e-\u1060\u1071-\u1074\u1082\u1085\u1086\u108d\u109d\u135f\u1712-\u1714\u1732-\u1734\u1752\u1753\u1772\u1773\u17b7-\u17bd\u17c6\u17c9-\u17d3\u17dd\u180b-\u180d\u18a9\u1920-\u1922\u1927\u1928\u1932\u1939-\u193b\u1a17\u1a18\u1a56\u1a58-\u1a5e\u1a60\u1a62\u1a65-\u1a6c\u1a73-\u1a7c\u1a7f\u1b00-\u1b03\u1b34\u1b36-\u1b3a\u1b3c\u1b42\u1b6b-\u1b73\u1b80\u1b81\u1ba2-\u1ba5\u1ba8\u1ba9\u1c2c-\u1c33\u1c36\u1c37\u1cd0-\u1cd2\u1cd4-\u1ce0\u1ce2-\u1ce8\u1ced\u1dc0-\u1de6\u1dfd-\u1dff\u200c\u200d\u20d0-\u20f0\u2cef-\u2cf1\u2de0-\u2dff\u302a-\u302f\u3099\u309a\ua66f-\ua672\ua67c\ua67d\ua6f0\ua6f1\ua802\ua806\ua80b\ua825\ua826\ua8c4\ua8e0-\ua8f1\ua926-\ua92d\ua947-\ua951\ua980-\ua982\ua9b3\ua9b6-\ua9b9\ua9bc\uaa29-\uaa2e\uaa31\uaa32\uaa35\uaa36\uaa43\uaa4c\uaab0\uaab2-\uaab4\uaab7\uaab8\uaabe\uaabf\uaac1\uabe5\uabe8\uabed\udc00-\udfff\ufb1e\ufe00-\ufe0f\ufe20-\ufe26\uff9e\uff9f]/;
function isExtendingChar(ch) { return ch.charCodeAt(0) >= 768 && extendingChars.test(ch); }
// DOM UTILITIES
function elt(tag, content, className, style) {
var e = document.createElement(tag);
if (className) e.className = className;
if (style) e.style.cssText = style;
if (typeof content == "string") e.appendChild(document.createTextNode(content));
else if (content) for (var i = 0; i < content.length; ++i) e.appendChild(content[i]);
return e;
}
var range;
if (document.createRange) range = function(node, start, end, endNode) {
var r = document.createRange();
r.setEnd(endNode || node, end);
r.setStart(node, start);
return r;
};
else range = function(node, start, end) {
var r = document.body.createTextRange();
try { r.moveToElementText(node.parentNode); }
catch(e) { return r; }
r.collapse(true);
r.moveEnd("character", end);
r.moveStart("character", start);
return r;
};
function removeChildren(e) {
for (var count = e.childNodes.length; count > 0; --count)
e.removeChild(e.firstChild);
return e;
}
function removeChildrenAndAdd(parent, e) {
return removeChildren(parent).appendChild(e);
}
var contains = CodeMirror.contains = function(parent, child) {
if (child.nodeType == 3) // Android browser always returns false when child is a textnode
child = child.parentNode;
if (parent.contains)
return parent.contains(child);
do {
if (child.nodeType == 11) child = child.host;
if (child == parent) return true;
} while (child = child.parentNode);
};
function activeElt() {
var activeElement = document.activeElement;
while (activeElement && activeElement.root && activeElement.root.activeElement)
activeElement = activeElement.root.activeElement;
return activeElement;
}
// Older versions of IE throws unspecified error when touching
// document.activeElement in some cases (during loading, in iframe)
if (ie && ie_version < 11) activeElt = function() {
try { return document.activeElement; }
catch(e) { return document.body; }
};
function classTest(cls) { return new RegExp("(^|\\s)" + cls + "(?:$|\\s)\\s*"); }
var rmClass = CodeMirror.rmClass = function(node, cls) {
var current = node.className;
var match = classTest(cls).exec(current);
if (match) {
var after = current.slice(match.index + match[0].length);
node.className = current.slice(0, match.index) + (after ? match[1] + after : "");
}
};
var addClass = CodeMirror.addClass = function(node, cls) {
var current = node.className;
if (!classTest(cls).test(current)) node.className += (current ? " " : "") + cls;
};
function joinClasses(a, b) {
var as = a.split(" ");
for (var i = 0; i < as.length; i++)
if (as[i] && !classTest(as[i]).test(b)) b += " " + as[i];
return b;
}
// WINDOW-WIDE EVENTS
// These must be handled carefully, because naively registering a
// handler for each editor will cause the editors to never be
// garbage collected.
function forEachCodeMirror(f) {
if (!document.body.getElementsByClassName) return;
var byClass = document.body.getElementsByClassName("CodeMirror");
for (var i = 0; i < byClass.length; i++) {
var cm = byClass[i].CodeMirror;
if (cm) f(cm);
}
}
var globalsRegistered = false;
function ensureGlobalHandlers() {
if (globalsRegistered) return;
registerGlobalHandlers();
globalsRegistered = true;
}
function registerGlobalHandlers() {
// When the window resizes, we need to refresh active editors.
var resizeTimer;
on(window, "resize", function() {
if (resizeTimer == null) resizeTimer = setTimeout(function() {
resizeTimer = null;
forEachCodeMirror(onResize);
}, 100);
});
// When the window loses focus, we want to show the editor as blurred
on(window, "blur", function() {
forEachCodeMirror(onBlur);
});
}
// FEATURE DETECTION
// Detect drag-and-drop
var dragAndDrop = function() {
// There is *some* kind of drag-and-drop support in IE6-8, but I
// couldn't get it to work yet.
if (ie && ie_version < 9) return false;
var div = elt('div');
return "draggable" in div || "dragDrop" in div;
}();
var zwspSupported;
function zeroWidthElement(measure) {
if (zwspSupported == null) {
var test = elt("span", "\u200b");
removeChildrenAndAdd(measure, elt("span", [test, document.createTextNode("x")]));
if (measure.firstChild.offsetHeight != 0)
zwspSupported = test.offsetWidth <= 1 && test.offsetHeight > 2 && !(ie && ie_version < 8);
}
var node = zwspSupported ? elt("span", "\u200b") :
elt("span", "\u00a0", null, "display: inline-block; width: 1px; margin-right: -1px");
node.setAttribute("cm-text", "");
return node;
}
// Feature-detect IE's crummy client rect reporting for bidi text
var badBidiRects;
function hasBadBidiRects(measure) {
if (badBidiRects != null) return badBidiRects;
var txt = removeChildrenAndAdd(measure, document.createTextNode("A\u062eA"));
var r0 = range(txt, 0, 1).getBoundingClientRect();
if (!r0 || r0.left == r0.right) return false; // Safari returns null in some cases (#2780)
var r1 = range(txt, 1, 2).getBoundingClientRect();
return badBidiRects = (r1.right - r0.right < 3);
}
// See if "".split is the broken IE version, if so, provide an
// alternative way to split lines.
var splitLinesAuto = CodeMirror.splitLines = "\n\nb".split(/\n/).length != 3 ? function(string) {
var pos = 0, result = [], l = string.length;
while (pos <= l) {
var nl = string.indexOf("\n", pos);
if (nl == -1) nl = string.length;
var line = string.slice(pos, string.charAt(nl - 1) == "\r" ? nl - 1 : nl);
var rt = line.indexOf("\r");
if (rt != -1) {
result.push(line.slice(0, rt));
pos += rt + 1;
} else {
result.push(line);
pos = nl + 1;
}
}
return result;
} : function(string){return string.split(/\r\n?|\n/);};
var hasSelection = window.getSelection ? function(te) {
try { return te.selectionStart != te.selectionEnd; }
catch(e) { return false; }
} : function(te) {
try {var range = te.ownerDocument.selection.createRange();}
catch(e) {}
if (!range || range.parentElement() != te) return false;
return range.compareEndPoints("StartToEnd", range) != 0;
};
var hasCopyEvent = (function() {
var e = elt("div");
if ("oncopy" in e) return true;
e.setAttribute("oncopy", "return;");
return typeof e.oncopy == "function";
})();
var badZoomedRects = null;
function hasBadZoomedRects(measure) {
if (badZoomedRects != null) return badZoomedRects;
var node = removeChildrenAndAdd(measure, elt("span", "x"));
var normal = node.getBoundingClientRect();
var fromRange = range(node, 0, 1).getBoundingClientRect();
return badZoomedRects = Math.abs(normal.left - fromRange.left) > 1;
}
// KEY NAMES
var keyNames = CodeMirror.keyNames = {
3: "Enter", 8: "Backspace", 9: "Tab", 13: "Enter", 16: "Shift", 17: "Ctrl", 18: "Alt",
19: "Pause", 20: "CapsLock", 27: "Esc", 32: "Space", 33: "PageUp", 34: "PageDown", 35: "End",
36: "Home", 37: "Left", 38: "Up", 39: "Right", 40: "Down", 44: "PrintScrn", 45: "Insert",
46: "Delete", 59: ";", 61: "=", 91: "Mod", 92: "Mod", 93: "Mod",
106: "*", 107: "=", 109: "-", 110: ".", 111: "/", 127: "Delete",
173: "-", 186: ";", 187: "=", 188: ",", 189: "-", 190: ".", 191: "/", 192: "`", 219: "[", 220: "\\",
221: "]", 222: "'", 63232: "Up", 63233: "Down", 63234: "Left", 63235: "Right", 63272: "Delete",
63273: "Home", 63275: "End", 63276: "PageUp", 63277: "PageDown", 63302: "Insert"
};
(function() {
// Number keys
for (var i = 0; i < 10; i++) keyNames[i + 48] = keyNames[i + 96] = String(i);
// Alphabetic keys
for (var i = 65; i <= 90; i++) keyNames[i] = String.fromCharCode(i);
// Function keys
for (var i = 1; i <= 12; i++) keyNames[i + 111] = keyNames[i + 63235] = "F" + i;
})();
// BIDI HELPERS
function iterateBidiSections(order, from, to, f) {
if (!order) return f(from, to, "ltr");
var found = false;
for (var i = 0; i < order.length; ++i) {
var part = order[i];
if (part.from < to && part.to > from || from == to && part.to == from) {
f(Math.max(part.from, from), Math.min(part.to, to), part.level == 1 ? "rtl" : "ltr");
found = true;
}
}
if (!found) f(from, to, "ltr");
}
function bidiLeft(part) { return part.level % 2 ? part.to : part.from; }
function bidiRight(part) { return part.level % 2 ? part.from : part.to; }
function lineLeft(line) { var order = getOrder(line); return order ? bidiLeft(order[0]) : 0; }
function lineRight(line) {
var order = getOrder(line);
if (!order) return line.text.length;
return bidiRight(lst(order));
}
function lineStart(cm, lineN) {
var line = getLine(cm.doc, lineN);
var visual = visualLine(line);
if (visual != line) lineN = lineNo(visual);
var order = getOrder(visual);
var ch = !order ? 0 : order[0].level % 2 ? lineRight(visual) : lineLeft(visual);
return Pos(lineN, ch);
}
function lineEnd(cm, lineN) {
var merged, line = getLine(cm.doc, lineN);
while (merged = collapsedSpanAtEnd(line)) {
line = merged.find(1, true).line;
lineN = null;
}
var order = getOrder(line);
var ch = !order ? line.text.length : order[0].level % 2 ? lineLeft(line) : lineRight(line);
return Pos(lineN == null ? lineNo(line) : lineN, ch);
}
function lineStartSmart(cm, pos) {
var start = lineStart(cm, pos.line);
var line = getLine(cm.doc, start.line);
var order = getOrder(line);
if (!order || order[0].level == 0) {
var firstNonWS = Math.max(0, line.text.search(/\S/));
var inWS = pos.line == start.line && pos.ch <= firstNonWS && pos.ch;
return Pos(start.line, inWS ? 0 : firstNonWS);
}
return start;
}
function compareBidiLevel(order, a, b) {
var linedir = order[0].level;
if (a == linedir) return true;
if (b == linedir) return false;
return a < b;
}
var bidiOther;
function getBidiPartAt(order, pos) {
bidiOther = null;
for (var i = 0, found; i < order.length; ++i) {
var cur = order[i];
if (cur.from < pos && cur.to > pos) return i;
if ((cur.from == pos || cur.to == pos)) {
if (found == null) {
found = i;
} else if (compareBidiLevel(order, cur.level, order[found].level)) {
if (cur.from != cur.to) bidiOther = found;
return i;
} else {
if (cur.from != cur.to) bidiOther = i;
return found;
}
}
}
return found;
}
function moveInLine(line, pos, dir, byUnit) {
if (!byUnit) return pos + dir;
do pos += dir;
while (pos > 0 && isExtendingChar(line.text.charAt(pos)));
return pos;
}
// This is needed in order to move 'visually' through bi-directional
// text -- i.e., pressing left should make the cursor go left, even
// when in RTL text. The tricky part is the 'jumps', where RTL and
// LTR text touch each other. This often requires the cursor offset
// to move more than one unit, in order to visually move one unit.
function moveVisually(line, start, dir, byUnit) {
var bidi = getOrder(line);
if (!bidi) return moveLogically(line, start, dir, byUnit);
var pos = getBidiPartAt(bidi, start), part = bidi[pos];
var target = moveInLine(line, start, part.level % 2 ? -dir : dir, byUnit);
for (;;) {
if (target > part.from && target < part.to) return target;
if (target == part.from || target == part.to) {
if (getBidiPartAt(bidi, target) == pos) return target;
part = bidi[pos += dir];
return (dir > 0) == part.level % 2 ? part.to : part.from;
} else {
part = bidi[pos += dir];
if (!part) return null;
if ((dir > 0) == part.level % 2)
target = moveInLine(line, part.to, -1, byUnit);
else
target = moveInLine(line, part.from, 1, byUnit);
}
}
}
function moveLogically(line, start, dir, byUnit) {
var target = start + dir;
if (byUnit) while (target > 0 && isExtendingChar(line.text.charAt(target))) target += dir;
return target < 0 || target > line.text.length ? null : target;
}
// Bidirectional ordering algorithm
// See http://unicode.org/reports/tr9/tr9-13.html for the algorithm
// that this (partially) implements.
// One-char codes used for character types:
// L (L): Left-to-Right
// R (R): Right-to-Left
// r (AL): Right-to-Left Arabic
// 1 (EN): European Number
// + (ES): European Number Separator
// % (ET): European Number Terminator
// n (AN): Arabic Number
// , (CS): Common Number Separator
// m (NSM): Non-Spacing Mark
// b (BN): Boundary Neutral
// s (B): Paragraph Separator
// t (S): Segment Separator
// w (WS): Whitespace
// N (ON): Other Neutrals
// Returns null if characters are ordered as they appear
// (left-to-right), or an array of sections ({from, to, level}
// objects) in the order in which they occur visually.
var bidiOrdering = (function() {
// Character types for codepoints 0 to 0xff
var lowTypes = "bbbbbbbbbtstwsbbbbbbbbbbbbbbssstwNN%%%NNNNNN,N,N1111111111NNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNbbbbbbsbbbbbbbbbbbbbbbbbbbbbbbbbb,N%%%%NNNNLNNNNN%%11NLNNN1LNNNNNLLLLLLLLLLLLLLLLLLLLLLLNLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLN";
// Character types for codepoints 0x600 to 0x6ff
var arabicTypes = "rrrrrrrrrrrr,rNNmmmmmmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmmrrrrrrrnnnnnnnnnn%nnrrrmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmmmmmmmNmmmm";
function charType(code) {
if (code <= 0xf7) return lowTypes.charAt(code);
else if (0x590 <= code && code <= 0x5f4) return "R";
else if (0x600 <= code && code <= 0x6ed) return arabicTypes.charAt(code - 0x600);
else if (0x6ee <= code && code <= 0x8ac) return "r";
else if (0x2000 <= code && code <= 0x200b) return "w";
else if (code == 0x200c) return "b";
else return "L";
}
var bidiRE = /[\u0590-\u05f4\u0600-\u06ff\u0700-\u08ac]/;
var isNeutral = /[stwN]/, isStrong = /[LRr]/, countsAsLeft = /[Lb1n]/, countsAsNum = /[1n]/;
// Browsers seem to always treat the boundaries of block elements as being L.
var outerType = "L";
function BidiSpan(level, from, to) {
this.level = level;
this.from = from; this.to = to;
}
return function(str) {
if (!bidiRE.test(str)) return false;
var len = str.length, types = [];
for (var i = 0, type; i < len; ++i)
types.push(type = charType(str.charCodeAt(i)));
// W1. Examine each non-spacing mark (NSM) in the level run, and
// change the type of the NSM to the type of the previous
// character. If the NSM is at the start of the level run, it will
// get the type of sor.
for (var i = 0, prev = outerType; i < len; ++i) {
var type = types[i];
if (type == "m") types[i] = prev;
else prev = type;
}
// W2. Search backwards from each instance of a European number
// until the first strong type (R, L, AL, or sor) is found. If an
// AL is found, change the type of the European number to Arabic
// number.
// W3. Change all ALs to R.
for (var i = 0, cur = outerType; i < len; ++i) {
var type = types[i];
if (type == "1" && cur == "r") types[i] = "n";
else if (isStrong.test(type)) { cur = type; if (type == "r") types[i] = "R"; }
}
// W4. A single European separator between two European numbers
// changes to a European number. A single common separator between
// two numbers of the same type changes to that type.
for (var i = 1, prev = types[0]; i < len - 1; ++i) {
var type = types[i];
if (type == "+" && prev == "1" && types[i+1] == "1") types[i] = "1";
else if (type == "," && prev == types[i+1] &&
(prev == "1" || prev == "n")) types[i] = prev;
prev = type;
}
// W5. A sequence of European terminators adjacent to European
// numbers changes to all European numbers.
// W6. Otherwise, separators and terminators change to Other
// Neutral.
for (var i = 0; i < len; ++i) {
var type = types[i];
if (type == ",") types[i] = "N";
else if (type == "%") {
for (var end = i + 1; end < len && types[end] == "%"; ++end) {}
var replace = (i && types[i-1] == "!") || (end < len && types[end] == "1") ? "1" : "N";
for (var j = i; j < end; ++j) types[j] = replace;
i = end - 1;
}
}
// W7. Search backwards from each instance of a European number
// until the first strong type (R, L, or sor) is found. If an L is
// found, then change the type of the European number to L.
for (var i = 0, cur = outerType; i < len; ++i) {
var type = types[i];
if (cur == "L" && type == "1") types[i] = "L";
else if (isStrong.test(type)) cur = type;
}
// N1. A sequence of neutrals takes the direction of the
// surrounding strong text if the text on both sides has the same
// direction. European and Arabic numbers act as if they were R in
// terms of their influence on neutrals. Start-of-level-run (sor)
// and end-of-level-run (eor) are used at level run boundaries.
// N2. Any remaining neutrals take the embedding direction.
for (var i = 0; i < len; ++i) {
if (isNeutral.test(types[i])) {
for (var end = i + 1; end < len && isNeutral.test(types[end]); ++end) {}
var before = (i ? types[i-1] : outerType) == "L";
var after = (end < len ? types[end] : outerType) == "L";
var replace = before || after ? "L" : "R";
for (var j = i; j < end; ++j) types[j] = replace;
i = end - 1;
}
}
// Here we depart from the documented algorithm, in order to avoid
// building up an actual levels array. Since there are only three
// levels (0, 1, 2) in an implementation that doesn't take
// explicit embedding into account, we can build up the order on
// the fly, without following the level-based algorithm.
var order = [], m;
for (var i = 0; i < len;) {
if (countsAsLeft.test(types[i])) {
var start = i;
for (++i; i < len && countsAsLeft.test(types[i]); ++i) {}
order.push(new BidiSpan(0, start, i));
} else {
var pos = i, at = order.length;
for (++i; i < len && types[i] != "L"; ++i) {}
for (var j = pos; j < i;) {
if (countsAsNum.test(types[j])) {
if (pos < j) order.splice(at, 0, new BidiSpan(1, pos, j));
var nstart = j;
for (++j; j < i && countsAsNum.test(types[j]); ++j) {}
order.splice(at, 0, new BidiSpan(2, nstart, j));
pos = j;
} else ++j;
}
if (pos < i) order.splice(at, 0, new BidiSpan(1, pos, i));
}
}
if (order[0].level == 1 && (m = str.match(/^\s+/))) {
order[0].from = m[0].length;
order.unshift(new BidiSpan(0, 0, m[0].length));
}
if (lst(order).level == 1 && (m = str.match(/\s+$/))) {
lst(order).to -= m[0].length;
order.push(new BidiSpan(0, len - m[0].length, len));
}
if (order[0].level == 2)
order.unshift(new BidiSpan(1, order[0].to, order[0].to));
if (order[0].level != lst(order).level)
order.push(new BidiSpan(order[0].level, len, len));
return order;
};
})();
// THE END
CodeMirror.version = "5.7.0";
return CodeMirror;
});
Raw
css.js
// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: http://codemirror.net/LICENSE
(function(mod) {
if (typeof exports == "object" && typeof module == "object") // CommonJS
mod(require("../../lib/codemirror"));
else if (typeof define == "function" && define.amd) // AMD
define(["../../lib/codemirror"], mod);
else // Plain browser env
mod(CodeMirror);
})(function(CodeMirror) {
"use strict";
CodeMirror.defineMode("css", function(config, parserConfig) {
var provided = parserConfig;
if (!parserConfig.propertyKeywords) parserConfig = CodeMirror.resolveMode("text/css");
parserConfig.inline = provided.inline;
var indentUnit = config.indentUnit,
tokenHooks = parserConfig.tokenHooks,
documentTypes = parserConfig.documentTypes || {},
mediaTypes = parserConfig.mediaTypes || {},
mediaFeatures = parserConfig.mediaFeatures || {},
mediaValueKeywords = parserConfig.mediaValueKeywords || {},
propertyKeywords = parserConfig.propertyKeywords || {},
nonStandardPropertyKeywords = parserConfig.nonStandardPropertyKeywords || {},
fontProperties = parserConfig.fontProperties || {},
counterDescriptors = parserConfig.counterDescriptors || {},
colorKeywords = parserConfig.colorKeywords || {},
valueKeywords = parserConfig.valueKeywords || {},
allowNested = parserConfig.allowNested,
supportsAtComponent = parserConfig.supportsAtComponent === true;
var type, override;
function ret(style, tp) { type = tp; return style; }
// Tokenizers
function tokenBase(stream, state) {
var ch = stream.next();
if (tokenHooks[ch]) {
var result = tokenHooks[ch](stream, state);
if (result !== false) return result;
}
if (ch == "@") {
stream.eatWhile(/[\w\\\-]/);
return ret("def", stream.current());
} else if (ch == "=" || (ch == "~" || ch == "|") && stream.eat("=")) {
return ret(null, "compare");
} else if (ch == "\"" || ch == "'") {
state.tokenize = tokenString(ch);
return state.tokenize(stream, state);
} else if (ch == "#") {
stream.eatWhile(/[\w\\\-]/);
return ret("atom", "hash");
} else if (ch == "!") {
stream.match(/^\s*\w*/);
return ret("keyword", "important");
} else if (/\d/.test(ch) || ch == "." && stream.eat(/\d/)) {
stream.eatWhile(/[\w.%]/);
return ret("number", "unit");
} else if (ch === "-") {
if (/[\d.]/.test(stream.peek())) {
stream.eatWhile(/[\w.%]/);
return ret("number", "unit");
} else if (stream.match(/^-[\w\\\-]+/)) {
stream.eatWhile(/[\w\\\-]/);
if (stream.match(/^\s*:/, false))
return ret("variable-2", "variable-definition");
return ret("variable-2", "variable");
} else if (stream.match(/^\w+-/)) {
return ret("meta", "meta");
}
} else if (/[,+>*\/]/.test(ch)) {
return ret(null, "select-op");
} else if (ch == "." && stream.match(/^-?[_a-z][_a-z0-9-]*/i)) {
return ret("qualifier", "qualifier");
} else if (/[:;{}\[\]\(\)]/.test(ch)) {
return ret(null, ch);
} else if ((ch == "u" && stream.match(/rl(-prefix)?\(/)) ||
(ch == "d" && stream.match("omain(")) ||
(ch == "r" && stream.match("egexp("))) {
stream.backUp(1);
state.tokenize = tokenParenthesized;
return ret("property", "word");
} else if (/[\w\\\-]/.test(ch)) {
stream.eatWhile(/[\w\\\-]/);
return ret("property", "word");
} else {
return ret(null, null);
}
}
function tokenString(quote) {
return function(stream, state) {
var escaped = false, ch;
while ((ch = stream.next()) != null) {
if (ch == quote && !escaped) {
if (quote == ")") stream.backUp(1);
break;
}
escaped = !escaped && ch == "\\";
}
if (ch == quote || !escaped && quote != ")") state.tokenize = null;
return ret("string", "string");
};
}
function tokenParenthesized(stream, state) {
stream.next(); // Must be '('
if (!stream.match(/\s*[\"\')]/, false))
state.tokenize = tokenString(")");
else
state.tokenize = null;
return ret(null, "(");
}
// Context management
function Context(type, indent, prev) {
this.type = type;
this.indent = indent;
this.prev = prev;
}
function pushContext(state, stream, type, indent) {
state.context = new Context(type, stream.indentation() + (indent === false ? 0 : indentUnit), state.context);
return type;
}
function popContext(state) {
if (state.context.prev)
state.context = state.context.prev;
return state.context.type;
}
function pass(type, stream, state) {
return states[state.context.type](type, stream, state);
}
function popAndPass(type, stream, state, n) {
for (var i = n || 1; i > 0; i--)
state.context = state.context.prev;
return pass(type, stream, state);
}
// Parser
function wordAsValue(stream) {
var word = stream.current().toLowerCase();
if (valueKeywords.hasOwnProperty(word))
override = "atom";
else if (colorKeywords.hasOwnProperty(word))
override = "keyword";
else
override = "variable";
}
var states = {};
states.top = function(type, stream, state) {
if (type == "{") {
return pushContext(state, stream, "block");
} else if (type == "}" && state.context.prev) {
return popContext(state);
} else if (supportsAtComponent && /@component/.test(type)) {
return pushContext(state, stream, "atComponentBlock");
} else if (/^@(-moz-)?document$/.test(type)) {
return pushContext(state, stream, "documentTypes");
} else if (/^@(media|supports|(-moz-)?document|import)$/.test(type)) {
return pushContext(state, stream, "atBlock");
} else if (/^@(font-face|counter-style)/.test(type)) {
state.stateArg = type;
return "restricted_atBlock_before";
} else if (/^@(-(moz|ms|o|webkit)-)?keyframes$/.test(type)) {
return "keyframes";
} else if (type && type.charAt(0) == "@") {
return pushContext(state, stream, "at");
} else if (type == "hash") {
override = "builtin";
} else if (type == "word") {
override = "tag";
} else if (type == "variable-definition") {
return "maybeprop";
} else if (type == "interpolation") {
return pushContext(state, stream, "interpolation");
} else if (type == ":") {
return "pseudo";
} else if (allowNested && type == "(") {
return pushContext(state, stream, "parens");
}
return state.context.type;
};
states.block = function(type, stream, state) {
if (type == "word") {
var word = stream.current().toLowerCase();
if (propertyKeywords.hasOwnProperty(word)) {
override = "property";
return "maybeprop";
} else if (nonStandardPropertyKeywords.hasOwnProperty(word)) {
override = "string-2";
return "maybeprop";
} else if (allowNested) {
override = stream.match(/^\s*:(?:\s|$)/, false) ? "property" : "tag";
return "block";
} else {
override += " error";
return "maybeprop";
}
} else if (type == "meta") {
return "block";
} else if (!allowNested && (type == "hash" || type == "qualifier")) {
override = "error";
return "block";
} else {
return states.top(type, stream, state);
}
};
states.maybeprop = function(type, stream, state) {
if (type == ":") return pushContext(state, stream, "prop");
return pass(type, stream, state);
};
states.prop = function(type, stream, state) {
if (type == ";") return popContext(state);
if (type == "{" && allowNested) return pushContext(state, stream, "propBlock");
if (type == "}" || type == "{") return popAndPass(type, stream, state);
if (type == "(") return pushContext(state, stream, "parens");
if (type == "hash" && !/^#([0-9a-fA-f]{3}|[0-9a-fA-f]{6})$/.test(stream.current())) {
override += " error";
} else if (type == "word") {
wordAsValue(stream);
} else if (type == "interpolation") {
return pushContext(state, stream, "interpolation");
}
return "prop";
};
states.propBlock = function(type, _stream, state) {
if (type == "}") return popContext(state);
if (type == "word") { override = "property"; return "maybeprop"; }
return state.context.type;
};
states.parens = function(type, stream, state) {
if (type == "{" || type == "}") return popAndPass(type, stream, state);
if (type == ")") return popContext(state);
if (type == "(") return pushContext(state, stream, "parens");
if (type == "interpolation") return pushContext(state, stream, "interpolation");
if (type == "word") wordAsValue(stream);
return "parens";
};
states.pseudo = function(type, stream, state) {
if (type == "word") {
override = "variable-3";
return state.context.type;
}
return pass(type, stream, state);
};
states.documentTypes = function(type, stream, state) {
if (type == "word" && documentTypes.hasOwnProperty(stream.current())) {
override = "tag";
return state.context.type;
} else {
return states.atBlock(type, stream, state);
}
};
states.atBlock = function(type, stream, state) {
if (type == "(") return pushContext(state, stream, "atBlock_parens");
if (type == "}" || type == ";") return popAndPass(type, stream, state);
if (type == "{") return popContext(state) && pushContext(state, stream, allowNested ? "block" : "top");
if (type == "word") {
var word = stream.current().toLowerCase();
if (word == "only" || word == "not" || word == "and" || word == "or")
override = "keyword";
else if (mediaTypes.hasOwnProperty(word))
override = "attribute";
else if (mediaFeatures.hasOwnProperty(word))
override = "property";
else if (mediaValueKeywords.hasOwnProperty(word))
override = "keyword";
else if (propertyKeywords.hasOwnProperty(word))
override = "property";
else if (nonStandardPropertyKeywords.hasOwnProperty(word))
override = "string-2";
else if (valueKeywords.hasOwnProperty(word))
override = "atom";
else if (colorKeywords.hasOwnProperty(word))
override = "keyword";
else
override = "error";
}
return state.context.type;
};
states.atComponentBlock = function(type, stream, state) {
if (type == "}")
return popAndPass(type, stream, state);
if (type == "{")
return popContext(state) && pushContext(state, stream, allowNested ? "block" : "top", false);
if (type == "word")
override = "error";
return state.context.type;
};
states.atBlock_parens = function(type, stream, state) {
if (type == ")") return popContext(state);
if (type == "{" || type == "}") return popAndPass(type, stream, state, 2);
return states.atBlock(type, stream, state);
};
states.restricted_atBlock_before = function(type, stream, state) {
if (type == "{")
return pushContext(state, stream, "restricted_atBlock");
if (type == "word" && state.stateArg == "@counter-style") {
override = "variable";
return "restricted_atBlock_before";
}
return pass(type, stream, state);
};
states.restricted_atBlock = function(type, stream, state) {
if (type == "}") {
state.stateArg = null;
return popContext(state);
}
if (type == "word") {
if ((state.stateArg == "@font-face" && !fontProperties.hasOwnProperty(stream.current().toLowerCase())) ||
(state.stateArg == "@counter-style" && !counterDescriptors.hasOwnProperty(stream.current().toLowerCase())))
override = "error";
else
override = "property";
return "maybeprop";
}
return "restricted_atBlock";
};
states.keyframes = function(type, stream, state) {
if (type == "word") { override = "variable"; return "keyframes"; }
if (type == "{") return pushContext(state, stream, "top");
return pass(type, stream, state);
};
states.at = function(type, stream, state) {
if (type == ";") return popContext(state);
if (type == "{" || type == "}") return popAndPass(type, stream, state);
if (type == "word") override = "tag";
else if (type == "hash") override = "builtin";
return "at";
};
states.interpolation = function(type, stream, state) {
if (type == "}") return popContext(state);
if (type == "{" || type == ";") return popAndPass(type, stream, state);
if (type == "word") override = "variable";
else if (type != "variable" && type != "(" && type != ")") override = "error";
return "interpolation";
};
return {
startState: function(base) {
return {tokenize: null,
state: parserConfig.inline ? "block" : "top",
stateArg: null,
context: new Context(parserConfig.inline ? "block" : "top", base || 0, null)};
},
token: function(stream, state) {
if (!state.tokenize && stream.eatSpace()) return null;
var style = (state.tokenize || tokenBase)(stream, state);
if (style && typeof style == "object") {
type = style[1];
style = style[0];
}
override = style;
state.state = states[state.state](type, stream, state);
return override;
},
indent: function(state, textAfter) {
var cx = state.context, ch = textAfter && textAfter.charAt(0);
var indent = cx.indent;
if (cx.type == "prop" && (ch == "}" || ch == ")")) cx = cx.prev;
if (cx.prev) {
if (ch == "}" && (cx.type == "block" || cx.type == "top" ||
cx.type == "interpolation" || cx.type == "restricted_atBlock")) {
// Resume indentation from parent context.
cx = cx.prev;
indent = cx.indent;
} else if (ch == ")" && (cx.type == "parens" || cx.type == "atBlock_parens") ||
ch == "{" && (cx.type == "at" || cx.type == "atBlock")) {
// Dedent relative to current context.
indent = Math.max(0, cx.indent - indentUnit);
cx = cx.prev;
}
}
return indent;
},
electricChars: "}",
blockCommentStart: "/*",
blockCommentEnd: "*/",
fold: "brace"
};
});
function keySet(array) {
var keys = {};
for (var i = 0; i < array.length; ++i) {
keys[array[i]] = true;
}
return keys;
}
var documentTypes_ = [
"domain", "regexp", "url", "url-prefix"
], documentTypes = keySet(documentTypes_);
var mediaTypes_ = [
"all", "aural", "braille", "handheld", "print", "projection", "screen",
"tty", "tv", "embossed"
], mediaTypes = keySet(mediaTypes_);
var mediaFeatures_ = [
"width", "min-width", "max-width", "height", "min-height", "max-height",
"device-width", "min-device-width", "max-device-width", "device-height",
"min-device-height", "max-device-height", "aspect-ratio",
"min-aspect-ratio", "max-aspect-ratio", "device-aspect-ratio",
"min-device-aspect-ratio", "max-device-aspect-ratio", "color", "min-color",
"max-color", "color-index", "min-color-index", "max-color-index",
"monochrome", "min-monochrome", "max-monochrome", "resolution",
"min-resolution", "max-resolution", "scan", "grid", "orientation",
"device-pixel-ratio", "min-device-pixel-ratio", "max-device-pixel-ratio",
"pointer", "any-pointer", "hover", "any-hover"
], mediaFeatures = keySet(mediaFeatures_);
var mediaValueKeywords_ = [
"landscape", "portrait", "none", "coarse", "fine", "on-demand", "hover",
"interlace", "progressive"
], mediaValueKeywords = keySet(mediaValueKeywords_);
var propertyKeywords_ = [
"align-content", "align-items", "align-self", "alignment-adjust",
"alignment-baseline", "anchor-point", "animation", "animation-delay",
"animation-direction", "animation-duration", "animation-fill-mode",
"animation-iteration-count", "animation-name", "animation-play-state",
"animation-timing-function", "appearance", "azimuth", "backface-visibility",
"background", "background-attachment", "background-clip", "background-color",
"background-image", "background-origin", "background-position",
"background-repeat", "background-size", "baseline-shift", "binding",
"bleed", "bookmark-label", "bookmark-level", "bookmark-state",
"bookmark-target", "border", "border-bottom", "border-bottom-color",
"border-bottom-left-radius", "border-bottom-right-radius",
"border-bottom-style", "border-bottom-width", "border-collapse",
"border-color", "border-image", "border-image-outset",
"border-image-repeat", "border-image-slice", "border-image-source",
"border-image-width", "border-left", "border-left-color",
"border-left-style", "border-left-width", "border-radius", "border-right",
"border-right-color", "border-right-style", "border-right-width",
"border-spacing", "border-style", "border-top", "border-top-color",
"border-top-left-radius", "border-top-right-radius", "border-top-style",
"border-top-width", "border-width", "bottom", "box-decoration-break",
"box-shadow", "box-sizing", "break-after", "break-before", "break-inside",
"caption-side", "clear", "clip", "color", "color-profile", "column-count",
"column-fill", "column-gap", "column-rule", "column-rule-color",
"column-rule-style", "column-rule-width", "column-span", "column-width",
"columns", "content", "counter-increment", "counter-reset", "crop", "cue",
"cue-after", "cue-before", "cursor", "direction", "display",
"dominant-baseline", "drop-initial-after-adjust",
"drop-initial-after-align", "drop-initial-before-adjust",
"drop-initial-before-align", "drop-initial-size", "drop-initial-value",
"elevation", "empty-cells", "fit", "fit-position", "flex", "flex-basis",
"flex-direction", "flex-flow", "flex-grow", "flex-shrink", "flex-wrap",
"float", "float-offset", "flow-from", "flow-into", "font", "font-feature-settings",
"font-family", "font-kerning", "font-language-override", "font-size", "font-size-adjust",
"font-stretch", "font-style", "font-synthesis", "font-variant",
"font-variant-alternates", "font-variant-caps", "font-variant-east-asian",
"font-variant-ligatures", "font-variant-numeric", "font-variant-position",
"font-weight", "grid", "grid-area", "grid-auto-columns", "grid-auto-flow",
"grid-auto-position", "grid-auto-rows", "grid-column", "grid-column-end",
"grid-column-start", "grid-row", "grid-row-end", "grid-row-start",
"grid-template", "grid-template-areas", "grid-template-columns",
"grid-template-rows", "hanging-punctuation", "height", "hyphens",
"icon", "image-orientation", "image-rendering", "image-resolution",
"inline-box-align", "justify-content", "left", "letter-spacing",
"line-break", "line-height", "line-stacking", "line-stacking-ruby",
"line-stacking-shift", "line-stacking-strategy", "list-style",
"list-style-image", "list-style-position", "list-style-type", "margin",
"margin-bottom", "margin-left", "margin-right", "margin-top",
"marker-offset", "marks", "marquee-direction", "marquee-loop",
"marquee-play-count", "marquee-speed", "marquee-style", "max-height",
"max-width", "min-height", "min-width", "move-to", "nav-down", "nav-index",
"nav-left", "nav-right", "nav-up", "object-fit", "object-position",
"opacity", "order", "orphans", "outline",
"outline-color", "outline-offset", "outline-style", "outline-width",
"overflow", "overflow-style", "overflow-wrap", "overflow-x", "overflow-y",
"padding", "padding-bottom", "padding-left", "padding-right", "padding-top",
"page", "page-break-after", "page-break-before", "page-break-inside",
"page-policy", "pause", "pause-after", "pause-before", "perspective",
"perspective-origin", "pitch", "pitch-range", "play-during", "position",
"presentation-level", "punctuation-trim", "quotes", "region-break-after",
"region-break-before", "region-break-inside", "region-fragment",
"rendering-intent", "resize", "rest", "rest-after", "rest-before", "richness",
"right", "rotation", "rotation-point", "ruby-align", "ruby-overhang",
"ruby-position", "ruby-span", "shape-image-threshold", "shape-inside", "shape-margin",
"shape-outside", "size", "speak", "speak-as", "speak-header",
"speak-numeral", "speak-punctuation", "speech-rate", "stress", "string-set",
"tab-size", "table-layout", "target", "target-name", "target-new",
"target-position", "text-align", "text-align-last", "text-decoration",
"text-decoration-color", "text-decoration-line", "text-decoration-skip",
"text-decoration-style", "text-emphasis", "text-emphasis-color",
"text-emphasis-position", "text-emphasis-style", "text-height",
"text-indent", "text-justify", "text-outline", "text-overflow", "text-shadow",
"text-size-adjust", "text-space-collapse", "text-transform", "text-underline-position",
"text-wrap", "top", "transform", "transform-origin", "transform-style",
"transition", "transition-delay", "transition-duration",
"transition-property", "transition-timing-function", "unicode-bidi",
"vertical-align", "visibility", "voice-balance", "voice-duration",
"voice-family", "voice-pitch", "voice-range", "voice-rate", "voice-stress",
"voice-volume", "volume", "white-space", "widows", "width", "word-break",
"word-spacing", "word-wrap", "z-index",
// SVG-specific
"clip-path", "clip-rule", "mask", "enable-background", "filter", "flood-color",
"flood-opacity", "lighting-color", "stop-color", "stop-opacity", "pointer-events",
"color-interpolation", "color-interpolation-filters",
"color-rendering", "fill", "fill-opacity", "fill-rule", "image-rendering",
"marker", "marker-end", "marker-mid", "marker-start", "shape-rendering", "stroke",
"stroke-dasharray", "stroke-dashoffset", "stroke-linecap", "stroke-linejoin",
"stroke-miterlimit", "stroke-opacity", "stroke-width", "text-rendering",
"baseline-shift", "dominant-baseline", "glyph-orientation-horizontal",
"glyph-orientation-vertical", "text-anchor", "writing-mode"
], propertyKeywords = keySet(propertyKeywords_);
var nonStandardPropertyKeywords_ = [
"scrollbar-arrow-color", "scrollbar-base-color", "scrollbar-dark-shadow-color",
"scrollbar-face-color", "scrollbar-highlight-color", "scrollbar-shadow-color",
"scrollbar-3d-light-color", "scrollbar-track-color", "shape-inside",
"searchfield-cancel-button", "searchfield-decoration", "searchfield-results-button",
"searchfield-results-decoration", "zoom"
], nonStandardPropertyKeywords = keySet(nonStandardPropertyKeywords_);
var fontProperties_ = [
"font-family", "src", "unicode-range", "font-variant", "font-feature-settings",
"font-stretch", "font-weight", "font-style"
], fontProperties = keySet(fontProperties_);
var counterDescriptors_ = [
"additive-symbols", "fallback", "negative", "pad", "prefix", "range",
"speak-as", "suffix", "symbols", "system"
], counterDescriptors = keySet(counterDescriptors_);
var colorKeywords_ = [
"aliceblue", "antiquewhite", "aqua", "aquamarine", "azure", "beige",
"bisque", "black", "blanchedalmond", "blue", "blueviolet", "brown",
"burlywood", "cadetblue", "chartreuse", "chocolate", "coral", "cornflowerblue",
"cornsilk", "crimson", "cyan", "darkblue", "darkcyan", "darkgoldenrod",
"darkgray", "darkgreen", "darkkhaki", "darkmagenta", "darkolivegreen",
"darkorange", "darkorchid", "darkred", "darksalmon", "darkseagreen",
"darkslateblue", "darkslategray", "darkturquoise", "darkviolet",
"deeppink", "deepskyblue", "dimgray", "dodgerblue", "firebrick",
"floralwhite", "forestgreen", "fuchsia", "gainsboro", "ghostwhite",
"gold", "goldenrod", "gray", "grey", "green", "greenyellow", "honeydew",
"hotpink", "indianred", "indigo", "ivory", "khaki", "lavender",
"lavenderblush", "lawngreen", "lemonchiffon", "lightblue", "lightcoral",
"lightcyan", "lightgoldenrodyellow", "lightgray", "lightgreen", "lightpink",
"lightsalmon", "lightseagreen", "lightskyblue", "lightslategray",
"lightsteelblue", "lightyellow", "lime", "limegreen", "linen", "magenta",
"maroon", "mediumaquamarine", "mediumblue", "mediumorchid", "mediumpurple",
"mediumseagreen", "mediumslateblue", "mediumspringgreen", "mediumturquoise",
"mediumvioletred", "midnightblue", "mintcream", "mistyrose", "moccasin",
"navajowhite", "navy", "oldlace", "olive", "olivedrab", "orange", "orangered",
"orchid", "palegoldenrod", "palegreen", "paleturquoise", "palevioletred",
"papayawhip", "peachpuff", "peru", "pink", "plum", "powderblue",
"purple", "rebeccapurple", "red", "rosybrown", "royalblue", "saddlebrown",
"salmon", "sandybrown", "seagreen", "seashell", "sienna", "silver", "skyblue",
"slateblue", "slategray", "snow", "springgreen", "steelblue", "tan",
"teal", "thistle", "tomato", "turquoise", "violet", "wheat", "white",
"whitesmoke", "yellow", "yellowgreen"
], colorKeywords = keySet(colorKeywords_);
var valueKeywords_ = [
"above", "absolute", "activeborder", "additive", "activecaption", "afar",
"after-white-space", "ahead", "alias", "all", "all-scroll", "alphabetic", "alternate",
"always", "amharic", "amharic-abegede", "antialiased", "appworkspace",
"arabic-indic", "armenian", "asterisks", "attr", "auto", "avoid", "avoid-column", "avoid-page",
"avoid-region", "background", "backwards", "baseline", "below", "bidi-override", "binary",
"bengali", "blink", "block", "block-axis", "bold", "bolder", "border", "border-box",
"both", "bottom", "break", "break-all", "break-word", "bullets", "button", "button-bevel",
"buttonface", "buttonhighlight", "buttonshadow", "buttontext", "calc", "cambodian",
"capitalize", "caps-lock-indicator", "caption", "captiontext", "caret",
"cell", "center", "checkbox", "circle", "cjk-decimal", "cjk-earthly-branch",
"cjk-heavenly-stem", "cjk-ideographic", "clear", "clip", "close-quote",
"col-resize", "collapse", "column", "column-reverse", "compact", "condensed", "contain", "content",
"content-box", "context-menu", "continuous", "copy", "counter", "counters", "cover", "crop",
"cross", "crosshair", "currentcolor", "cursive", "cyclic", "dashed", "decimal",
"decimal-leading-zero", "default", "default-button", "destination-atop",
"destination-in", "destination-out", "destination-over", "devanagari",
"disc", "discard", "disclosure-closed", "disclosure-open", "document",
"dot-dash", "dot-dot-dash",
"dotted", "double", "down", "e-resize", "ease", "ease-in", "ease-in-out", "ease-out",
"element", "ellipse", "ellipsis", "embed", "end", "ethiopic", "ethiopic-abegede",
"ethiopic-abegede-am-et", "ethiopic-abegede-gez", "ethiopic-abegede-ti-er",
"ethiopic-abegede-ti-et", "ethiopic-halehame-aa-er",
"ethiopic-halehame-aa-et", "ethiopic-halehame-am-et",
"ethiopic-halehame-gez", "ethiopic-halehame-om-et",
"ethiopic-halehame-sid-et", "ethiopic-halehame-so-et",
"ethiopic-halehame-ti-er", "ethiopic-halehame-ti-et", "ethiopic-halehame-tig",
"ethiopic-numeric", "ew-resize", "expanded", "extends", "extra-condensed",
"extra-expanded", "fantasy", "fast", "fill", "fixed", "flat", "flex", "flex-end", "flex-start", "footnotes",
"forwards", "from", "geometricPrecision", "georgian", "graytext", "groove",
"gujarati", "gurmukhi", "hand", "hangul", "hangul-consonant", "hebrew",
"help", "hidden", "hide", "higher", "highlight", "highlighttext",
"hiragana", "hiragana-iroha", "horizontal", "hsl", "hsla", "icon", "ignore",
"inactiveborder", "inactivecaption", "inactivecaptiontext", "infinite",
"infobackground", "infotext", "inherit", "initial", "inline", "inline-axis",
"inline-block", "inline-flex", "inline-table", "inset", "inside", "intrinsic", "invert",
"italic", "japanese-formal", "japanese-informal", "justify", "kannada",
"katakana", "katakana-iroha", "keep-all", "khmer",
"korean-hangul-formal", "korean-hanja-formal", "korean-hanja-informal",
"landscape", "lao", "large", "larger", "left", "level", "lighter",
"line-through", "linear", "linear-gradient", "lines", "list-item", "listbox", "listitem",
"local", "logical", "loud", "lower", "lower-alpha", "lower-armenian",
"lower-greek", "lower-hexadecimal", "lower-latin", "lower-norwegian",
"lower-roman", "lowercase", "ltr", "malayalam", "match", "matrix", "matrix3d",
"media-controls-background", "media-current-time-display",
"media-fullscreen-button", "media-mute-button", "media-play-button",
"media-return-to-realtime-button", "media-rewind-button",
"media-seek-back-button", "media-seek-forward-button", "media-slider",
"media-sliderthumb", "media-time-remaining-display", "media-volume-slider",
"media-volume-slider-container", "media-volume-sliderthumb", "medium",
"menu", "menulist", "menulist-button", "menulist-text",
"menulist-textfield", "menutext", "message-box", "middle", "min-intrinsic",
"mix", "mongolian", "monospace", "move", "multiple", "myanmar", "n-resize",
"narrower", "ne-resize", "nesw-resize", "no-close-quote", "no-drop",
"no-open-quote", "no-repeat", "none", "normal", "not-allowed", "nowrap",
"ns-resize", "numbers", "numeric", "nw-resize", "nwse-resize", "oblique", "octal", "open-quote",
"optimizeLegibility", "optimizeSpeed", "oriya", "oromo", "outset",
"outside", "outside-shape", "overlay", "overline", "padding", "padding-box",
"painted", "page", "paused", "persian", "perspective", "plus-darker", "plus-lighter",
"pointer", "polygon", "portrait", "pre", "pre-line", "pre-wrap", "preserve-3d",
"progress", "push-button", "radial-gradient", "radio", "read-only",
"read-write", "read-write-plaintext-only", "rectangle", "region",
"relative", "repeat", "repeating-linear-gradient",
"repeating-radial-gradient", "repeat-x", "repeat-y", "reset", "reverse",
"rgb", "rgba", "ridge", "right", "rotate", "rotate3d", "rotateX", "rotateY",
"rotateZ", "round", "row", "row-resize", "row-reverse", "rtl", "run-in", "running",
"s-resize", "sans-serif", "scale", "scale3d", "scaleX", "scaleY", "scaleZ",
"scroll", "scrollbar", "se-resize", "searchfield",
"searchfield-cancel-button", "searchfield-decoration",
"searchfield-results-button", "searchfield-results-decoration",
"semi-condensed", "semi-expanded", "separate", "serif", "show", "sidama",
"simp-chinese-formal", "simp-chinese-informal", "single",
"skew", "skewX", "skewY", "skip-white-space", "slide", "slider-horizontal",
"slider-vertical", "sliderthumb-horizontal", "sliderthumb-vertical", "slow",
"small", "small-caps", "small-caption", "smaller", "solid", "somali",
"source-atop", "source-in", "source-out", "source-over", "space", "space-around", "space-between", "spell-out", "square",
"square-button", "start", "static", "status-bar", "stretch", "stroke", "sub",
"subpixel-antialiased", "super", "sw-resize", "symbolic", "symbols", "table",
"table-caption", "table-cell", "table-column", "table-column-group",
"table-footer-group", "table-header-group", "table-row", "table-row-group",
"tamil",
"telugu", "text", "text-bottom", "text-top", "textarea", "textfield", "thai",
"thick", "thin", "threeddarkshadow", "threedface", "threedhighlight",
"threedlightshadow", "threedshadow", "tibetan", "tigre", "tigrinya-er",
"tigrinya-er-abegede", "tigrinya-et", "tigrinya-et-abegede", "to", "top",
"trad-chinese-formal", "trad-chinese-informal",
"translate", "translate3d", "translateX", "translateY", "translateZ",
"transparent", "ultra-condensed", "ultra-expanded", "underline", "up",
"upper-alpha", "upper-armenian", "upper-greek", "upper-hexadecimal",
"upper-latin", "upper-norwegian", "upper-roman", "uppercase", "urdu", "url",
"var", "vertical", "vertical-text", "visible", "visibleFill", "visiblePainted",
"visibleStroke", "visual", "w-resize", "wait", "wave", "wider",
"window", "windowframe", "windowtext", "words", "wrap", "wrap-reverse", "x-large", "x-small", "xor",
"xx-large", "xx-small"
], valueKeywords = keySet(valueKeywords_);
var allWords = documentTypes_.concat(mediaTypes_).concat(mediaFeatures_).concat(mediaValueKeywords_)
.concat(propertyKeywords_).concat(nonStandardPropertyKeywords_).concat(colorKeywords_)
.concat(valueKeywords_);
CodeMirror.registerHelper("hintWords", "css", allWords);
function tokenCComment(stream, state) {
var maybeEnd = false, ch;
while ((ch = stream.next()) != null) {
if (maybeEnd && ch == "/") {
state.tokenize = null;
break;
}
maybeEnd = (ch == "*");
}
return ["comment", "comment"];
}
CodeMirror.defineMIME("text/css", {
documentTypes: documentTypes,
mediaTypes: mediaTypes,
mediaFeatures: mediaFeatures,
mediaValueKeywords: mediaValueKeywords,
propertyKeywords: propertyKeywords,
nonStandardPropertyKeywords: nonStandardPropertyKeywords,
fontProperties: fontProperties,
counterDescriptors: counterDescriptors,
colorKeywords: colorKeywords,
valueKeywords: valueKeywords,
tokenHooks: {
"/": function(stream, state) {
if (!stream.eat("*")) return false;
state.tokenize = tokenCComment;
return tokenCComment(stream, state);
}
},
name: "css"
});
CodeMirror.defineMIME("text/x-scss", {
mediaTypes: mediaTypes,
mediaFeatures: mediaFeatures,
mediaValueKeywords: mediaValueKeywords,
propertyKeywords: propertyKeywords,
nonStandardPropertyKeywords: nonStandardPropertyKeywords,
colorKeywords: colorKeywords,
valueKeywords: valueKeywords,
fontProperties: fontProperties,
allowNested: true,
tokenHooks: {
"/": function(stream, state) {
if (stream.eat("/")) {
stream.skipToEnd();
return ["comment", "comment"];
} else if (stream.eat("*")) {
state.tokenize = tokenCComment;
return tokenCComment(stream, state);
} else {
return ["operator", "operator"];
}
},
":": function(stream) {
if (stream.match(/\s*\{/))
return [null, "{"];
return false;
},
"$": function(stream) {
stream.match(/^[\w-]+/);
if (stream.match(/^\s*:/, false))
return ["variable-2", "variable-definition"];
return ["variable-2", "variable"];
},
"#": function(stream) {
if (!stream.eat("{")) return false;
return [null, "interpolation"];
}
},
name: "css",
helperType: "scss"
});
CodeMirror.defineMIME("text/x-less", {
mediaTypes: mediaTypes,
mediaFeatures: mediaFeatures,
mediaValueKeywords: mediaValueKeywords,
propertyKeywords: propertyKeywords,
nonStandardPropertyKeywords: nonStandardPropertyKeywords,
colorKeywords: colorKeywords,
valueKeywords: valueKeywords,
fontProperties: fontProperties,
allowNested: true,
tokenHooks: {
"/": function(stream, state) {
if (stream.eat("/")) {
stream.skipToEnd();
return ["comment", "comment"];
} else if (stream.eat("*")) {
state.tokenize = tokenCComment;
return tokenCComment(stream, state);
} else {
return ["operator", "operator"];
}
},
"@": function(stream) {
if (stream.eat("{")) return [null, "interpolation"];
if (stream.match(/^(charset|document|font-face|import|(-(moz|ms|o|webkit)-)?keyframes|media|namespace|page|supports)\b/, false)) return false;
stream.eatWhile(/[\w\\\-]/);
if (stream.match(/^\s*:/, false))
return ["variable-2", "variable-definition"];
return ["variable-2", "variable"];
},
"&": function() {
return ["atom", "atom"];
}
},
name: "css",
helperType: "less"
});
CodeMirror.defineMIME("text/x-gss", {
documentTypes: documentTypes,
mediaTypes: mediaTypes,
mediaFeatures: mediaFeatures,
propertyKeywords: propertyKeywords,
nonStandardPropertyKeywords: nonStandardPropertyKeywords,
fontProperties: fontProperties,
counterDescriptors: counterDescriptors,
colorKeywords: colorKeywords,
valueKeywords: valueKeywords,
supportsAtComponent: true,
tokenHooks: {
"/": function(stream, state) {
if (!stream.eat("*")) return false;
state.tokenize = tokenCComment;
return tokenCComment(stream, state);
}
},
name: "css",
helperType: "gss"
});
});
Raw
htmlmixed.js
// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: http://codemirror.net/LICENSE
(function(mod) {
if (typeof exports == "object" && typeof module == "object") // CommonJS
mod(require("../../lib/codemirror"), require("../xml/xml"), require("../javascript/javascript"), require("../css/css"));
else if (typeof define == "function" && define.amd) // AMD
define(["../../lib/codemirror", "../xml/xml", "../javascript/javascript", "../css/css"], mod);
else // Plain browser env
mod(CodeMirror);
})(function(CodeMirror) {
"use strict";
var defaultTags = {
script: [
["lang", /(javascript|babel)/i, "javascript"],
["type", /^(?:text|application)\/(?:x-)?(?:java|ecma)script$|^$/i, "javascript"],
["type", /./, "text/plain"],
[null, null, "javascript"]
],
style: [
["lang", /^css$/i, "css"],
["type", /^(text\/)?(x-)?(stylesheet|css)$/i, "css"],
["type", /./, "text/plain"],
[null, null, "css"]
]
};
function maybeBackup(stream, pat, style) {
var cur = stream.current(), close = cur.search(pat);
if (close > -1) {
stream.backUp(cur.length - close);
} else if (cur.match(/<\/?$/)) {
stream.backUp(cur.length);
if (!stream.match(pat, false)) stream.match(cur);
}
return style;
}
var attrRegexpCache = {};
function getAttrRegexp(attr) {
var regexp = attrRegexpCache[attr];
if (regexp) return regexp;
return attrRegexpCache[attr] = new RegExp("\\s+" + attr + "\\s*=\\s*('|\")?([^'\"]+)('|\")?\\s*");
}
function getAttrValue(stream, attr) {
var pos = stream.pos, match;
while (pos >= 0 && stream.string.charAt(pos) !== "<") pos--;
if (pos < 0) return pos;
if (match = stream.string.slice(pos, stream.pos).match(getAttrRegexp(attr)))
return match[2];
return "";
}
function getTagRegexp(tagName, anchored) {
return new RegExp((anchored ? "^" : "") + "<\/\s*" + tagName + "\s*>", "i");
}
function addTags(from, to) {
for (var tag in from) {
var dest = to[tag] || (to[tag] = []);
var source = from[tag];
for (var i = source.length - 1; i >= 0; i--)
dest.unshift(source[i])
}
}
function findMatchingMode(tagInfo, stream) {
for (var i = 0; i < tagInfo.length; i++) {
var spec = tagInfo[i];
if (!spec[0] || spec[1].test(getAttrValue(stream, spec[0]))) return spec[2];
}
}
CodeMirror.defineMode("htmlmixed", function (config, parserConfig) {
var htmlMode = CodeMirror.getMode(config, {
name: "xml",
htmlMode: true,
multilineTagIndentFactor: parserConfig.multilineTagIndentFactor,
multilineTagIndentPastTag: parserConfig.multilineTagIndentPastTag
});
var tags = {};
var configTags = parserConfig && parserConfig.tags, configScript = parserConfig && parserConfig.scriptTypes;
addTags(defaultTags, tags);
if (configTags) addTags(configTags, tags);
if (configScript) for (var i = configScript.length - 1; i >= 0; i--)
tags.script.unshift(["type", configScript[i].matches, configScript[i].mode])
function html(stream, state) {
var tagName = state.htmlState.tagName;
var tagInfo = tagName && tags[tagName.toLowerCase()];
var style = htmlMode.token(stream, state.htmlState), modeSpec;
if (tagInfo && /\btag\b/.test(style) && stream.current() === ">" &&
(modeSpec = findMatchingMode(tagInfo, stream))) {
var mode = CodeMirror.getMode(config, modeSpec);
var endTagA = getTagRegexp(tagName, true), endTag = getTagRegexp(tagName, false);
state.token = function (stream, state) {
if (stream.match(endTagA, false)) {
state.token = html;
state.localState = state.localMode = null;
return null;
}
return maybeBackup(stream, endTag, state.localMode.token(stream, state.localState));
};
state.localMode = mode;
state.localState = CodeMirror.startState(mode, htmlMode.indent(state.htmlState, ""));
}
return style;
};
return {
startState: function () {
var state = htmlMode.startState();
return {token: html, localMode: null, localState: null, htmlState: state};
},
copyState: function (state) {
var local;
if (state.localState) {
local = CodeMirror.copyState(state.localMode, state.localState);
}
return {token: state.token, localMode: state.localMode, localState: local,
htmlState: CodeMirror.copyState(htmlMode, state.htmlState)};
},
token: function (stream, state) {
return state.token(stream, state);
},
indent: function (state, textAfter) {
if (!state.localMode || /^\s*<\//.test(textAfter))
return htmlMode.indent(state.htmlState, textAfter);
else if (state.localMode.indent)
return state.localMode.indent(state.localState, textAfter);
else
return CodeMirror.Pass;
},
innerMode: function (state) {
return {state: state.localState || state.htmlState, mode: state.localMode || htmlMode};
}
};
}, "xml", "javascript", "css");
CodeMirror.defineMIME("text/html", "htmlmixed");
});
Raw
index.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Jade Editor</title>
<link rel="stylesheet" href="codemirror.css">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/skeleton/2.0.4/skeleton.min.css">
<script src="codemirror.js"></script>
<script src="javascript.js"></script>
<script src="css.js"></script>
<script src="xml.js"></script>
<script src="htmlmixed.js"></script>
<script src="jade.js"></script>
<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/jade/1.11.0/jade.min.js"></script>
<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/zepto/1.1.6/zepto.min.js"></script>
<style>
html, body {
margin: 0;
height: 100%;
}
.CodeMirror {
border: solid 1px #aaa;
height: auto;
min-height: 300px;
}
.header {
font-size: 12px;
font-weight: bold;
text-transform: uppercase;
padding: 10px 0;
border-bottom: solid 1px #0FA0CE;
margin-bottom: 10px;
}
.rendered-html {
background-color: #f5f5f5;
border: solid 1px #aaa;
min-height: 278px;
height: auto;
padding: 10px;
}
.rendered-html {
font-size: 14px;
font-family: 'Helvetica neue', Helvetica;
}
.rendered-html h1 {
font-size: 2.1rem;
font-weight: bold;
margin-bottom: 4px;
}
.rendered-html h2 {
font-size: 1.8rem;
font-weight: bold;
margin-bottom: 4px;
}
.rendered-html h3 {
font-size: 1.6rem;
font-weight: bold;
margin-bottom: 4px;
}
.rendered-html h4 {
font-size: 1.4rem;
font-weight: bold;
margin-bottom: 4px;
}
.lang-ref {
text-align: right;
text-transform: none;
}
.lang-ref a {
color: #aaa;
text-decoration: none;
margin-left: 10px;
}
.app-name {
color: #0FA0CE;
}
</style>
</head>
<body>
<div class="container header">
<div class="row">
<div class="eight columns">
<span class="app-name">jade live preview</span>
</div>
<div class="four columns lang-ref">
<a href="http://jade-lang.com/reference/" target="_blank">Jade Reference</a>
<a href="https://gist.github.com/pnavarrc/cdd92c979cdd5b548285" target="_blank">GitHub</a>
<a href="https://gist.github.com/pnavarrc/cdd92c979cdd5b548285#file-readme-md" target="_blank">About</a>
</div>
</div>
</div>
<div class="container jade-editor">
<div class="row">
<div class="six columns">
<textarea id="jade-source">
h1 Jade Live Preview
p A minimal editor with a live preview for&nbsp;
a(href="http://jade-lang.com/") Jade.
</textarea>
</div>
<div class="six columns">
<div id="rendered" class="rendered-html"></div>
</div>
</div>
</div>
<script>
var editorOptions = {
mode: {name: 'jade', alignCDATA: true},
lineNumbers: true,
tabSize: 2,
lineWrapping: true,
indentWithTabs: false
};
function updateRendered() {
var jadeSource = editor.getValue(),
jadeCompiled = jade.compile(jadeSource);
$('#rendered').html(jadeCompiled());
}
var editor = CodeMirror.fromTextArea($('#jade-source').get(0), editorOptions);
updateRendered();
editor.on('changes', updateRendered);
</script>
</body>
</html>
Raw
jade.js
// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: http://codemirror.net/LICENSE
(function(mod) {
if (typeof exports == "object" && typeof module == "object") // CommonJS
mod(require("../../lib/codemirror"), require("../javascript/javascript"), require("../css/css"), require("../htmlmixed/htmlmixed"));
else if (typeof define == "function" && define.amd) // AMD
define(["../../lib/codemirror", "../javascript/javascript", "../css/css", "../htmlmixed/htmlmixed"], mod);
else // Plain browser env
mod(CodeMirror);
})(function(CodeMirror) {
"use strict";
CodeMirror.defineMode('jade', function (config) {
// token types
var KEYWORD = 'keyword';
var DOCTYPE = 'meta';
var ID = 'builtin';
var CLASS = 'qualifier';
var ATTRS_NEST = {
'{': '}',
'(': ')',
'[': ']'
};
var jsMode = CodeMirror.getMode(config, 'javascript');
function State() {
this.javaScriptLine = false;
this.javaScriptLineExcludesColon = false;
this.javaScriptArguments = false;
this.javaScriptArgumentsDepth = 0;
this.isInterpolating = false;
this.interpolationNesting = 0;
this.jsState = jsMode.startState();
this.restOfLine = '';
this.isIncludeFiltered = false;
this.isEach = false;
this.lastTag = '';
this.scriptType = '';
// Attributes Mode
this.isAttrs = false;
this.attrsNest = [];
this.inAttributeName = true;
this.attributeIsType = false;
this.attrValue = '';
// Indented Mode
this.indentOf = Infinity;
this.indentToken = '';
this.innerMode = null;
this.innerState = null;
this.innerModeForLine = false;
}
/**
* Safely copy a state
*
* @return {State}
*/
State.prototype.copy = function () {
var res = new State();
res.javaScriptLine = this.javaScriptLine;
res.javaScriptLineExcludesColon = this.javaScriptLineExcludesColon;
res.javaScriptArguments = this.javaScriptArguments;
res.javaScriptArgumentsDepth = this.javaScriptArgumentsDepth;
res.isInterpolating = this.isInterpolating;
res.interpolationNesting = this.intpolationNesting;
res.jsState = CodeMirror.copyState(jsMode, this.jsState);
res.innerMode = this.innerMode;
if (this.innerMode && this.innerState) {
res.innerState = CodeMirror.copyState(this.innerMode, this.innerState);
}
res.restOfLine = this.restOfLine;
res.isIncludeFiltered = this.isIncludeFiltered;
res.isEach = this.isEach;
res.lastTag = this.lastTag;
res.scriptType = this.scriptType;
res.isAttrs = this.isAttrs;
res.attrsNest = this.attrsNest.slice();
res.inAttributeName = this.inAttributeName;
res.attributeIsType = this.attributeIsType;
res.attrValue = this.attrValue;
res.indentOf = this.indentOf;
res.indentToken = this.indentToken;
res.innerModeForLine = this.innerModeForLine;
return res;
};
function javaScript(stream, state) {
if (stream.sol()) {
// if javaScriptLine was set at end of line, ignore it
state.javaScriptLine = false;
state.javaScriptLineExcludesColon = false;
}
if (state.javaScriptLine) {
if (state.javaScriptLineExcludesColon && stream.peek() === ':') {
state.javaScriptLine = false;
state.javaScriptLineExcludesColon = false;
return;
}
var tok = jsMode.token(stream, state.jsState);
if (stream.eol()) state.javaScriptLine = false;
return tok || true;
}
}
function javaScriptArguments(stream, state) {
if (state.javaScriptArguments) {
if (state.javaScriptArgumentsDepth === 0 && stream.peek() !== '(') {
state.javaScriptArguments = false;
return;
}
if (stream.peek() === '(') {
state.javaScriptArgumentsDepth++;
} else if (stream.peek() === ')') {
state.javaScriptArgumentsDepth--;
}
if (state.javaScriptArgumentsDepth === 0) {
state.javaScriptArguments = false;
return;
}
var tok = jsMode.token(stream, state.jsState);
return tok || true;
}
}
function yieldStatement(stream) {
if (stream.match(/^yield\b/)) {
return 'keyword';
}
}
function doctype(stream) {
if (stream.match(/^(?:doctype) *([^\n]+)?/)) {
return DOCTYPE;
}
}
function interpolation(stream, state) {
if (stream.match('#{')) {
state.isInterpolating = true;
state.interpolationNesting = 0;
return 'punctuation';
}
}
function interpolationContinued(stream, state) {
if (state.isInterpolating) {
if (stream.peek() === '}') {
state.interpolationNesting--;
if (state.interpolationNesting < 0) {
stream.next();
state.isInterpolating = false;
return 'puncutation';
}
} else if (stream.peek() === '{') {
state.interpolationNesting++;
}
return jsMode.token(stream, state.jsState) || true;
}
}
function caseStatement(stream, state) {
if (stream.match(/^case\b/)) {
state.javaScriptLine = true;
return KEYWORD;
}
}
function when(stream, state) {
if (stream.match(/^when\b/)) {
state.javaScriptLine = true;
state.javaScriptLineExcludesColon = true;
return KEYWORD;
}
}
function defaultStatement(stream) {
if (stream.match(/^default\b/)) {
return KEYWORD;
}
}
function extendsStatement(stream, state) {
if (stream.match(/^extends?\b/)) {
state.restOfLine = 'string';
return KEYWORD;
}
}
function append(stream, state) {
if (stream.match(/^append\b/)) {
state.restOfLine = 'variable';
return KEYWORD;
}
}
function prepend(stream, state) {
if (stream.match(/^prepend\b/)) {
state.restOfLine = 'variable';
return KEYWORD;
}
}
function block(stream, state) {
if (stream.match(/^block\b *(?:(prepend|append)\b)?/)) {
state.restOfLine = 'variable';
return KEYWORD;
}
}
function include(stream, state) {
if (stream.match(/^include\b/)) {
state.restOfLine = 'string';
return KEYWORD;
}
}
function includeFiltered(stream, state) {
if (stream.match(/^include:([a-zA-Z0-9\-]+)/, false) && stream.match('include')) {
state.isIncludeFiltered = true;
return KEYWORD;
}
}
function includeFilteredContinued(stream, state) {
if (state.isIncludeFiltered) {
var tok = filter(stream, state);
state.isIncludeFiltered = false;
state.restOfLine = 'string';
return tok;
}
}
function mixin(stream, state) {
if (stream.match(/^mixin\b/)) {
state.javaScriptLine = true;
return KEYWORD;
}
}
function call(stream, state) {
if (stream.match(/^\+([-\w]+)/)) {
if (!stream.match(/^\( *[-\w]+ *=/, false)) {
state.javaScriptArguments = true;
state.javaScriptArgumentsDepth = 0;
}
return 'variable';
}
if (stream.match(/^\+#{/, false)) {
stream.next();
state.mixinCallAfter = true;
return interpolation(stream, state);
}
}
function callArguments(stream, state) {
if (state.mixinCallAfter) {
state.mixinCallAfter = false;
if (!stream.match(/^\( *[-\w]+ *=/, false)) {
state.javaScriptArguments = true;
state.javaScriptArgumentsDepth = 0;
}
return true;
}
}
function conditional(stream, state) {
if (stream.match(/^(if|unless|else if|else)\b/)) {
state.javaScriptLine = true;
return KEYWORD;
}
}
function each(stream, state) {
if (stream.match(/^(- *)?(each|for)\b/)) {
state.isEach = true;
return KEYWORD;
}
}
function eachContinued(stream, state) {
if (state.isEach) {
if (stream.match(/^ in\b/)) {
state.javaScriptLine = true;
state.isEach = false;
return KEYWORD;
} else if (stream.sol() || stream.eol()) {
state.isEach = false;
} else if (stream.next()) {
while (!stream.match(/^ in\b/, false) && stream.next());
return 'variable';
}
}
}
function whileStatement(stream, state) {
if (stream.match(/^while\b/)) {
state.javaScriptLine = true;
return KEYWORD;
}
}
function tag(stream, state) {
var captures;
if (captures = stream.match(/^(\w(?:[-:\w]*\w)?)\/?/)) {
state.lastTag = captures[1].toLowerCase();
if (state.lastTag === 'script') {
state.scriptType = 'application/javascript';
}
return 'tag';
}
}
function filter(stream, state) {
if (stream.match(/^:([\w\-]+)/)) {
var innerMode;
if (config && config.innerModes) {
innerMode = config.innerModes(stream.current().substring(1));
}
if (!innerMode) {
innerMode = stream.current().substring(1);
}
if (typeof innerMode === 'string') {
innerMode = CodeMirror.getMode(config, innerMode);
}
setInnerMode(stream, state, innerMode);
return 'atom';
}
}
function code(stream, state) {
if (stream.match(/^(!?=|-)/)) {
state.javaScriptLine = true;
return 'punctuation';
}
}
function id(stream) {
if (stream.match(/^#([\w-]+)/)) {
return ID;
}
}
function className(stream) {
if (stream.match(/^\.([\w-]+)/)) {
return CLASS;
}
}
function attrs(stream, state) {
if (stream.peek() == '(') {
stream.next();
state.isAttrs = true;
state.attrsNest = [];
state.inAttributeName = true;
state.attrValue = '';
state.attributeIsType = false;
return 'punctuation';
}
}
function attrsContinued(stream, state) {
if (state.isAttrs) {
if (ATTRS_NEST[stream.peek()]) {
state.attrsNest.push(ATTRS_NEST[stream.peek()]);
}
if (state.attrsNest[state.attrsNest.length - 1] === stream.peek()) {
state.attrsNest.pop();
} else if (stream.eat(')')) {
state.isAttrs = false;
return 'punctuation';
}
if (state.inAttributeName && stream.match(/^[^=,\)!]+/)) {
if (stream.peek() === '=' || stream.peek() === '!') {
state.inAttributeName = false;
state.jsState = jsMode.startState();
if (state.lastTag === 'script' && stream.current().trim().toLowerCase() === 'type') {
state.attributeIsType = true;
} else {
state.attributeIsType = false;
}
}
return 'attribute';
}
var tok = jsMode.token(stream, state.jsState);
if (state.attributeIsType && tok === 'string') {
state.scriptType = stream.current().toString();
}
if (state.attrsNest.length === 0 && (tok === 'string' || tok === 'variable' || tok === 'keyword')) {
try {
Function('', 'var x ' + state.attrValue.replace(/,\s*$/, '').replace(/^!/, ''));
state.inAttributeName = true;
state.attrValue = '';
stream.backUp(stream.current().length);
return attrsContinued(stream, state);
} catch (ex) {
//not the end of an attribute
}
}
state.attrValue += stream.current();
return tok || true;
}
}
function attributesBlock(stream, state) {
if (stream.match(/^&attributes\b/)) {
state.javaScriptArguments = true;
state.javaScriptArgumentsDepth = 0;
return 'keyword';
}
}
function indent(stream) {
if (stream.sol() && stream.eatSpace()) {
return 'indent';
}
}
function comment(stream, state) {
if (stream.match(/^ *\/\/(-)?([^\n]*)/)) {
state.indentOf = stream.indentation();
state.indentToken = 'comment';
return 'comment';
}
}
function colon(stream) {
if (stream.match(/^: */)) {
return 'colon';
}
}
function text(stream, state) {
if (stream.match(/^(?:\| ?| )([^\n]+)/)) {
return 'string';
}
if (stream.match(/^(<[^\n]*)/, false)) {
// html string
setInnerMode(stream, state, 'htmlmixed');
state.innerModeForLine = true;
return innerMode(stream, state, true);
}
}
function dot(stream, state) {
if (stream.eat('.')) {
var innerMode = null;
if (state.lastTag === 'script' && state.scriptType.toLowerCase().indexOf('javascript') != -1) {
innerMode = state.scriptType.toLowerCase().replace(/"|'/g, '');
} else if (state.lastTag === 'style') {
innerMode = 'css';
}
setInnerMode(stream, state, innerMode);
return 'dot';
}
}
function fail(stream) {
stream.next();
return null;
}
function setInnerMode(stream, state, mode) {
mode = CodeMirror.mimeModes[mode] || mode;
mode = config.innerModes ? config.innerModes(mode) || mode : mode;
mode = CodeMirror.mimeModes[mode] || mode;
mode = CodeMirror.getMode(config, mode);
state.indentOf = stream.indentation();
if (mode && mode.name !== 'null') {
state.innerMode = mode;
} else {
state.indentToken = 'string';
}
}
function innerMode(stream, state, force) {
if (stream.indentation() > state.indentOf || (state.innerModeForLine && !stream.sol()) || force) {
if (state.innerMode) {
if (!state.innerState) {
state.innerState = state.innerMode.startState ? state.innerMode.startState(stream.indentation()) : {};
}
return stream.hideFirstChars(state.indentOf + 2, function () {
return state.innerMode.token(stream, state.innerState) || true;
});
} else {
stream.skipToEnd();
return state.indentToken;
}
} else if (stream.sol()) {
state.indentOf = Infinity;
state.indentToken = null;
state.innerMode = null;
state.innerState = null;
}
}
function restOfLine(stream, state) {
if (stream.sol()) {
// if restOfLine was set at end of line, ignore it
state.restOfLine = '';
}
if (state.restOfLine) {
stream.skipToEnd();
var tok = state.restOfLine;
state.restOfLine = '';
return tok;
}
}
function startState() {
return new State();
}
function copyState(state) {
return state.copy();
}
/**
* Get the next token in the stream
*
* @param {Stream} stream
* @param {State} state
*/
function nextToken(stream, state) {
var tok = innerMode(stream, state)
|| restOfLine(stream, state)
|| interpolationContinued(stream, state)
|| includeFilteredContinued(stream, state)
|| eachContinued(stream, state)
|| attrsContinued(stream, state)
|| javaScript(stream, state)
|| javaScriptArguments(stream, state)
|| callArguments(stream, state)
|| yieldStatement(stream, state)
|| doctype(stream, state)
|| interpolation(stream, state)
|| caseStatement(stream, state)
|| when(stream, state)
|| defaultStatement(stream, state)
|| extendsStatement(stream, state)
|| append(stream, state)
|| prepend(stream, state)
|| block(stream, state)
|| include(stream, state)
|| includeFiltered(stream, state)
|| mixin(stream, state)
|| call(stream, state)
|| conditional(stream, state)
|| each(stream, state)
|| whileStatement(stream, state)
|| tag(stream, state)
|| filter(stream, state)
|| code(stream, state)
|| id(stream, state)
|| className(stream, state)
|| attrs(stream, state)
|| attributesBlock(stream, state)
|| indent(stream, state)
|| text(stream, state)
|| comment(stream, state)
|| colon(stream, state)
|| dot(stream, state)
|| fail(stream, state);
return tok === true ? null : tok;
}
return {
startState: startState,
copyState: copyState,
token: nextToken
};
});
CodeMirror.defineMIME('text/x-jade', 'jade');
});
Raw
javascript.js
// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: http://codemirror.net/LICENSE
// TODO actually recognize syntax of TypeScript constructs
(function(mod) {
if (typeof exports == "object" && typeof module == "object") // CommonJS
mod(require("../../lib/codemirror"));
else if (typeof define == "function" && define.amd) // AMD
define(["../../lib/codemirror"], mod);
else // Plain browser env
mod(CodeMirror);
})(function(CodeMirror) {
"use strict";
CodeMirror.defineMode("javascript", function(config, parserConfig) {
var indentUnit = config.indentUnit;
var statementIndent = parserConfig.statementIndent;
var jsonldMode = parserConfig.jsonld;
var jsonMode = parserConfig.json || jsonldMode;
var isTS = parserConfig.typescript;
var wordRE = parserConfig.wordCharacters || /[\w$\xa1-\uffff]/;
// Tokenizer
var keywords = function(){
function kw(type) {return {type: type, style: "keyword"};}
var A = kw("keyword a"), B = kw("keyword b"), C = kw("keyword c");
var operator = kw("operator"), atom = {type: "atom", style: "atom"};
var jsKeywords = {
"if": kw("if"), "while": A, "with": A, "else": B, "do": B, "try": B, "finally": B,
"return": C, "break": C, "continue": C, "new": C, "delete": C, "throw": C, "debugger": C,
"var": kw("var"), "const": kw("var"), "let": kw("var"),
"async": kw("async"), "function": kw("function"), "catch": kw("catch"),
"for": kw("for"), "switch": kw("switch"), "case": kw("case"), "default": kw("default"),
"in": operator, "typeof": operator, "instanceof": operator,
"true": atom, "false": atom, "null": atom, "undefined": atom, "NaN": atom, "Infinity": atom,
"this": kw("this"), "class": kw("class"), "super": kw("atom"),
"await": C, "yield": C, "export": kw("export"), "import": kw("import"), "extends": C
};
// Extend the 'normal' keywords with the TypeScript language extensions
if (isTS) {
var type = {type: "variable", style: "variable-3"};
var tsKeywords = {
// object-like things
"interface": kw("interface"),
"extends": kw("extends"),
"constructor": kw("constructor"),
// scope modifiers
"public": kw("public"),
"private": kw("private"),
"protected": kw("protected"),
"static": kw("static"),
// types
"string": type, "number": type, "bool": type, "any": type
};
for (var attr in tsKeywords) {
jsKeywords[attr] = tsKeywords[attr];
}
}
return jsKeywords;
}();
var isOperatorChar = /[+\-*&%=<>!?|~^]/;
var isJsonldKeyword = /^@(context|id|value|language|type|container|list|set|reverse|index|base|vocab|graph)"/;
function readRegexp(stream) {
var escaped = false, next, inSet = false;
while ((next = stream.next()) != null) {
if (!escaped) {
if (next == "/" && !inSet) return;
if (next == "[") inSet = true;
else if (inSet && next == "]") inSet = false;
}
escaped = !escaped && next == "\\";
}
}
// Used as scratch variables to communicate multiple values without
// consing up tons of objects.
var type, content;
function ret(tp, style, cont) {
type = tp; content = cont;
return style;
}
function tokenBase(stream, state) {
var ch = stream.next();
if (ch == '"' || ch == "'") {
state.tokenize = tokenString(ch);
return state.tokenize(stream, state);
} else if (ch == "." && stream.match(/^\d+(?:[eE][+\-]?\d+)?/)) {
return ret("number", "number");
} else if (ch == "." && stream.match("..")) {
return ret("spread", "meta");
} else if (/[\[\]{}\(\),;\:\.]/.test(ch)) {
return ret(ch);
} else if (ch == "=" && stream.eat(">")) {
return ret("=>", "operator");
} else if (ch == "0" && stream.eat(/x/i)) {
stream.eatWhile(/[\da-f]/i);
return ret("number", "number");
} else if (ch == "0" && stream.eat(/o/i)) {
stream.eatWhile(/[0-7]/i);
return ret("number", "number");
} else if (ch == "0" && stream.eat(/b/i)) {
stream.eatWhile(/[01]/i);
return ret("number", "number");
} else if (/\d/.test(ch)) {
stream.match(/^\d*(?:\.\d*)?(?:[eE][+\-]?\d+)?/);
return ret("number", "number");
} else if (ch == "/") {
if (stream.eat("*")) {
state.tokenize = tokenComment;
return tokenComment(stream, state);
} else if (stream.eat("/")) {
stream.skipToEnd();
return ret("comment", "comment");
} else if (state.lastType == "operator" || state.lastType == "keyword c" ||
state.lastType == "sof" || /^[\[{}\(,;:]$/.test(state.lastType)) {
readRegexp(stream);
stream.match(/^\b(([gimyu])(?![gimyu]*\2))+\b/);
return ret("regexp", "string-2");
} else {
stream.eatWhile(isOperatorChar);
return ret("operator", "operator", stream.current());
}
} else if (ch == "`") {
state.tokenize = tokenQuasi;
return tokenQuasi(stream, state);
} else if (ch == "#") {
stream.skipToEnd();
return ret("error", "error");
} else if (isOperatorChar.test(ch)) {
stream.eatWhile(isOperatorChar);
return ret("operator", "operator", stream.current());
} else if (wordRE.test(ch)) {
stream.eatWhile(wordRE);
var word = stream.current(), known = keywords.propertyIsEnumerable(word) && keywords[word];
return (known && state.lastType != ".") ? ret(known.type, known.style, word) :
ret("variable", "variable", word);
}
}
function tokenString(quote) {
return function(stream, state) {
var escaped = false, next;
if (jsonldMode && stream.peek() == "@" && stream.match(isJsonldKeyword)){
state.tokenize = tokenBase;
return ret("jsonld-keyword", "meta");
}
while ((next = stream.next()) != null) {
if (next == quote && !escaped) break;
escaped = !escaped && next == "\\";
}
if (!escaped) state.tokenize = tokenBase;
return ret("string", "string");
};
}
function tokenComment(stream, state) {
var maybeEnd = false, ch;
while (ch = stream.next()) {
if (ch == "/" && maybeEnd) {
state.tokenize = tokenBase;
break;
}
maybeEnd = (ch == "*");
}
return ret("comment", "comment");
}
function tokenQuasi(stream, state) {
var escaped = false, next;
while ((next = stream.next()) != null) {
if (!escaped && (next == "`" || next == "$" && stream.eat("{"))) {
state.tokenize = tokenBase;
break;
}
escaped = !escaped && next == "\\";
}
return ret("quasi", "string-2", stream.current());
}
var brackets = "([{}])";
// This is a crude lookahead trick to try and notice that we're
// parsing the argument patterns for a fat-arrow function before we
// actually hit the arrow token. It only works if the arrow is on
// the same line as the arguments and there's no strange noise
// (comments) in between. Fallback is to only notice when we hit the
// arrow, and not declare the arguments as locals for the arrow
// body.
function findFatArrow(stream, state) {
if (state.fatArrowAt) state.fatArrowAt = null;
var arrow = stream.string.indexOf("=>", stream.start);
if (arrow < 0) return;
var depth = 0, sawSomething = false;
for (var pos = arrow - 1; pos >= 0; --pos) {
var ch = stream.string.charAt(pos);
var bracket = brackets.indexOf(ch);
if (bracket >= 0 && bracket < 3) {
if (!depth) { ++pos; break; }
if (--depth == 0) break;
} else if (bracket >= 3 && bracket < 6) {
++depth;
} else if (wordRE.test(ch)) {
sawSomething = true;
} else if (/["'\/]/.test(ch)) {
return;
} else if (sawSomething && !depth) {
++pos;
break;
}
}
if (sawSomething && !depth) state.fatArrowAt = pos;
}
// Parser
var atomicTypes = {"atom": true, "number": true, "variable": true, "string": true, "regexp": true, "this": true, "jsonld-keyword": true};
function JSLexical(indented, column, type, align, prev, info) {
this.indented = indented;
this.column = column;
this.type = type;
this.prev = prev;
this.info = info;
if (align != null) this.align = align;
}
function inScope(state, varname) {
for (var v = state.localVars; v; v = v.next)
if (v.name == varname) return true;
for (var cx = state.context; cx; cx = cx.prev) {
for (var v = cx.vars; v; v = v.next)
if (v.name == varname) return true;
}
}
function parseJS(state, style, type, content, stream) {
var cc = state.cc;
// Communicate our context to the combinators.
// (Less wasteful than consing up a hundred closures on every call.)
cx.state = state; cx.stream = stream; cx.marked = null, cx.cc = cc; cx.style = style;
if (!state.lexical.hasOwnProperty("align"))
state.lexical.align = true;
while(true) {
var combinator = cc.length ? cc.pop() : jsonMode ? expression : statement;
if (combinator(type, content)) {
while(cc.length && cc[cc.length - 1].lex)
cc.pop()();
if (cx.marked) return cx.marked;
if (type == "variable" && inScope(state, content)) return "variable-2";
return style;
}
}
}
// Combinator utils
var cx = {state: null, column: null, marked: null, cc: null};
function pass() {
for (var i = arguments.length - 1; i >= 0; i--) cx.cc.push(arguments[i]);
}
function cont() {
pass.apply(null, arguments);
return true;
}
function register(varname) {
function inList(list) {
for (var v = list; v; v = v.next)
if (v.name == varname) return true;
return false;
}
var state = cx.state;
if (state.context) {
cx.marked = "def";
if (inList(state.localVars)) return;
state.localVars = {name: varname, next: state.localVars};
} else {
if (inList(state.globalVars)) return;
if (parserConfig.globalVars)
state.globalVars = {name: varname, next: state.globalVars};
}
}
// Combinators
var defaultVars = {name: "this", next: {name: "arguments"}};
function pushcontext() {
cx.state.context = {prev: cx.state.context, vars: cx.state.localVars};
cx.state.localVars = defaultVars;
}
function popcontext() {
cx.state.localVars = cx.state.context.vars;
cx.state.context = cx.state.context.prev;
}
function pushlex(type, info) {
var result = function() {
var state = cx.state, indent = state.indented;
if (state.lexical.type == "stat") indent = state.lexical.indented;
else for (var outer = state.lexical; outer && outer.type == ")" && outer.align; outer = outer.prev)
indent = outer.indented;
state.lexical = new JSLexical(indent, cx.stream.column(), type, null, state.lexical, info);
};
result.lex = true;
return result;
}
function poplex() {
var state = cx.state;
if (state.lexical.prev) {
if (state.lexical.type == ")")
state.indented = state.lexical.indented;
state.lexical = state.lexical.prev;
}
}
poplex.lex = true;
function expect(wanted) {
function exp(type) {
if (type == wanted) return cont();
else if (wanted == ";") return pass();
else return cont(exp);
};
return exp;
}
function statement(type, value) {
if (type == "var") return cont(pushlex("vardef", value.length), vardef, expect(";"), poplex);
if (type == "keyword a") return cont(pushlex("form"), expression, statement, poplex);
if (type == "keyword b") return cont(pushlex("form"), statement, poplex);
if (type == "{") return cont(pushlex("}"), block, poplex);
if (type == ";") return cont();
if (type == "if") {
if (cx.state.lexical.info == "else" && cx.state.cc[cx.state.cc.length - 1] == poplex)
cx.state.cc.pop()();
return cont(pushlex("form"), expression, statement, poplex, maybeelse);
}
if (type == "function") return cont(functiondef);
if (type == "for") return cont(pushlex("form"), forspec, statement, poplex);
if (type == "variable") return cont(pushlex("stat"), maybelabel);
if (type == "switch") return cont(pushlex("form"), expression, pushlex("}", "switch"), expect("{"),
block, poplex, poplex);
if (type == "case") return cont(expression, expect(":"));
if (type == "default") return cont(expect(":"));
if (type == "catch") return cont(pushlex("form"), pushcontext, expect("("), funarg, expect(")"),
statement, poplex, popcontext);
if (type == "class") return cont(pushlex("form"), className, poplex);
if (type == "export") return cont(pushlex("stat"), afterExport, poplex);
if (type == "import") return cont(pushlex("stat"), afterImport, poplex);
return pass(pushlex("stat"), expression, expect(";"), poplex);
}
function expression(type) {
return expressionInner(type, false);
}
function expressionNoComma(type) {
return expressionInner(type, true);
}
function expressionInner(type, noComma) {
if (cx.state.fatArrowAt == cx.stream.start) {
var body = noComma ? arrowBodyNoComma : arrowBody;
if (type == "(") return cont(pushcontext, pushlex(")"), commasep(pattern, ")"), poplex, expect("=>"), body, popcontext);
else if (type == "variable") return pass(pushcontext, pattern, expect("=>"), body, popcontext);
}
var maybeop = noComma ? maybeoperatorNoComma : maybeoperatorComma;
if (atomicTypes.hasOwnProperty(type)) return cont(maybeop);
if (type == "async") return cont(expression);
if (type == "function") return cont(functiondef, maybeop);
if (type == "keyword c") return cont(noComma ? maybeexpressionNoComma : maybeexpression);
if (type == "(") return cont(pushlex(")"), maybeexpression, comprehension, expect(")"), poplex, maybeop);
if (type == "operator" || type == "spread") return cont(noComma ? expressionNoComma : expression);
if (type == "[") return cont(pushlex("]"), arrayLiteral, poplex, maybeop);
if (type == "{") return contCommasep(objprop, "}", null, maybeop);
if (type == "quasi") { return pass(quasi, maybeop); }
return cont();
}
function maybeexpression(type) {
if (type.match(/[;\}\)\],]/)) return pass();
return pass(expression);
}
function maybeexpressionNoComma(type) {
if (type.match(/[;\}\)\],]/)) return pass();
return pass(expressionNoComma);
}
function maybeoperatorComma(type, value) {
if (type == ",") return cont(expression);
return maybeoperatorNoComma(type, value, false);
}
function maybeoperatorNoComma(type, value, noComma) {
var me = noComma == false ? maybeoperatorComma : maybeoperatorNoComma;
var expr = noComma == false ? expression : expressionNoComma;
if (type == "=>") return cont(pushcontext, noComma ? arrowBodyNoComma : arrowBody, popcontext);
if (type == "operator") {
if (/\+\+|--/.test(value)) return cont(me);
if (value == "?") return cont(expression, expect(":"), expr);
return cont(expr);
}
if (type == "quasi") { return pass(quasi, me); }
if (type == ";") return;
if (type == "(") return contCommasep(expressionNoComma, ")", "call", me);
if (type == ".") return cont(property, me);
if (type == "[") return cont(pushlex("]"), maybeexpression, expect("]"), poplex, me);
}
function quasi(type, value) {
if (type != "quasi") return pass();
if (value.slice(value.length - 2) != "${") return cont(quasi);
return cont(expression, continueQuasi);
}
function continueQuasi(type) {
if (type == "}") {
cx.marked = "string-2";
cx.state.tokenize = tokenQuasi;
return cont(quasi);
}
}
function arrowBody(type) {
findFatArrow(cx.stream, cx.state);
return pass(type == "{" ? statement : expression);
}
function arrowBodyNoComma(type) {
findFatArrow(cx.stream, cx.state);
return pass(type == "{" ? statement : expressionNoComma);
}
function maybelabel(type) {
if (type == ":") return cont(poplex, statement);
return pass(maybeoperatorComma, expect(";"), poplex);
}
function property(type) {
if (type == "variable") {cx.marked = "property"; return cont();}
}
function objprop(type, value) {
if (type == "async") {
return cont(objprop);
} else if (type == "variable" || cx.style == "keyword") {
cx.marked = "property";
if (value == "get" || value == "set") return cont(getterSetter);
return cont(afterprop);
} else if (type == "number" || type == "string") {
cx.marked = jsonldMode ? "property" : (cx.style + " property");
return cont(afterprop);
} else if (type == "jsonld-keyword") {
return cont(afterprop);
} else if (type == "[") {
return cont(expression, expect("]"), afterprop);
}
}
function getterSetter(type) {
if (type != "variable") return pass(afterprop);
cx.marked = "property";
return cont(functiondef);
}
function afterprop(type) {
if (type == ":") return cont(expressionNoComma);
if (type == "(") return pass(functiondef);
}
function commasep(what, end) {
function proceed(type) {
if (type == ",") {
var lex = cx.state.lexical;
if (lex.info == "call") lex.pos = (lex.pos || 0) + 1;
return cont(what, proceed);
}
if (type == end) return cont();
return cont(expect(end));
}
return function(type) {
if (type == end) return cont();
return pass(what, proceed);
};
}
function contCommasep(what, end, info) {
for (var i = 3; i < arguments.length; i++)
cx.cc.push(arguments[i]);
return cont(pushlex(end, info), commasep(what, end), poplex);
}
function block(type) {
if (type == "}") return cont();
return pass(statement, block);
}
function maybetype(type) {
if (isTS && type == ":") return cont(typedef);
}
function maybedefault(_, value) {
if (value == "=") return cont(expressionNoComma);
}
function typedef(type) {
if (type == "variable") {cx.marked = "variable-3"; return cont();}
}
function vardef() {
return pass(pattern, maybetype, maybeAssign, vardefCont);
}
function pattern(type, value) {
if (type == "variable") { register(value); return cont(); }
if (type == "[") return contCommasep(pattern, "]");
if (type == "{") return contCommasep(proppattern, "}");
}
function proppattern(type, value) {
if (type == "variable" && !cx.stream.match(/^\s*:/, false)) {
register(value);
return cont(maybeAssign);
}
if (type == "variable") cx.marked = "property";
return cont(expect(":"), pattern, maybeAssign);
}
function maybeAssign(_type, value) {
if (value == "=") return cont(expressionNoComma);
}
function vardefCont(type) {
if (type == ",") return cont(vardef);
}
function maybeelse(type, value) {
if (type == "keyword b" && value == "else") return cont(pushlex("form", "else"), statement, poplex);
}
function forspec(type) {
if (type == "(") return cont(pushlex(")"), forspec1, expect(")"), poplex);
}
function forspec1(type) {
if (type == "var") return cont(vardef, expect(";"), forspec2);
if (type == ";") return cont(forspec2);
if (type == "variable") return cont(formaybeinof);
return pass(expression, expect(";"), forspec2);
}
function formaybeinof(_type, value) {
if (value == "in" || value == "of") { cx.marked = "keyword"; return cont(expression); }
return cont(maybeoperatorComma, forspec2);
}
function forspec2(type, value) {
if (type == ";") return cont(forspec3);
if (value == "in" || value == "of") { cx.marked = "keyword"; return cont(expression); }
return pass(expression, expect(";"), forspec3);
}
function forspec3(type) {
if (type != ")") cont(expression);
}
function functiondef(type, value) {
if (value == "*") {cx.marked = "keyword"; return cont(functiondef);}
if (type == "variable") {register(value); return cont(functiondef);}
if (type == "(") return cont(pushcontext, pushlex(")"), commasep(funarg, ")"), poplex, statement, popcontext);
}
function funarg(type) {
if (type == "spread") return cont(funarg);
return pass(pattern, maybetype, maybedefault);
}
function className(type, value) {
if (type == "variable") {register(value); return cont(classNameAfter);}
}
function classNameAfter(type, value) {
if (value == "extends") return cont(expression, classNameAfter);
if (type == "{") return cont(pushlex("}"), classBody, poplex);
}
function classBody(type, value) {
if (type == "variable" || cx.style == "keyword") {
if (value == "static") {
cx.marked = "keyword";
return cont(classBody);
}
cx.marked = "property";
if (value == "get" || value == "set") return cont(classGetterSetter, functiondef, classBody);
return cont(functiondef, classBody);
}
if (value == "*") {
cx.marked = "keyword";
return cont(classBody);
}
if (type == ";") return cont(classBody);
if (type == "}") return cont();
}
function classGetterSetter(type) {
if (type != "variable") return pass();
cx.marked = "property";
return cont();
}
function afterExport(_type, value) {
if (value == "*") { cx.marked = "keyword"; return cont(maybeFrom, expect(";")); }
if (value == "default") { cx.marked = "keyword"; return cont(expression, expect(";")); }
return pass(statement);
}
function afterImport(type) {
if (type == "string") return cont();
return pass(importSpec, maybeFrom);
}
function importSpec(type, value) {
if (type == "{") return contCommasep(importSpec, "}");
if (type == "variable") register(value);
if (value == "*") cx.marked = "keyword";
return cont(maybeAs);
}
function maybeAs(_type, value) {
if (value == "as") { cx.marked = "keyword"; return cont(importSpec); }
}
function maybeFrom(_type, value) {
if (value == "from") { cx.marked = "keyword"; return cont(expression); }
}
function arrayLiteral(type) {
if (type == "]") return cont();
return pass(expressionNoComma, maybeArrayComprehension);
}
function maybeArrayComprehension(type) {
if (type == "for") return pass(comprehension, expect("]"));
if (type == ",") return cont(commasep(maybeexpressionNoComma, "]"));
return pass(commasep(expressionNoComma, "]"));
}
function comprehension(type) {
if (type == "for") return cont(forspec, comprehension);
if (type == "if") return cont(expression, comprehension);
}
function isContinuedStatement(state, textAfter) {
return state.lastType == "operator" || state.lastType == "," ||
isOperatorChar.test(textAfter.charAt(0)) ||
/[,.]/.test(textAfter.charAt(0));
}
// Interface
return {
startState: function(basecolumn) {
var state = {
tokenize: tokenBase,
lastType: "sof",
cc: [],
lexical: new JSLexical((basecolumn || 0) - indentUnit, 0, "block", false),
localVars: parserConfig.localVars,
context: parserConfig.localVars && {vars: parserConfig.localVars},
indented: 0
};
if (parserConfig.globalVars && typeof parserConfig.globalVars == "object")
state.globalVars = parserConfig.globalVars;
return state;
},
token: function(stream, state) {
if (stream.sol()) {
if (!state.lexical.hasOwnProperty("align"))
state.lexical.align = false;
state.indented = stream.indentation();
findFatArrow(stream, state);
}
if (state.tokenize != tokenComment && stream.eatSpace()) return null;
var style = state.tokenize(stream, state);
if (type == "comment") return style;
state.lastType = type == "operator" && (content == "++" || content == "--") ? "incdec" : type;
return parseJS(state, style, type, content, stream);
},
indent: function(state, textAfter) {
if (state.tokenize == tokenComment) return CodeMirror.Pass;
if (state.tokenize != tokenBase) return 0;
var firstChar = textAfter && textAfter.charAt(0), lexical = state.lexical;
// Kludge to prevent 'maybelse' from blocking lexical scope pops
if (!/^\s*else\b/.test(textAfter)) for (var i = state.cc.length - 1; i >= 0; --i) {
var c = state.cc[i];
if (c == poplex) lexical = lexical.prev;
else if (c != maybeelse) break;
}
if (lexical.type == "stat" && firstChar == "}") lexical = lexical.prev;
if (statementIndent && lexical.type == ")" && lexical.prev.type == "stat")
lexical = lexical.prev;
var type = lexical.type, closing = firstChar == type;
if (type == "vardef") return lexical.indented + (state.lastType == "operator" || state.lastType == "," ? lexical.info + 1 : 0);
else if (type == "form" && firstChar == "{") return lexical.indented;
else if (type == "form") return lexical.indented + indentUnit;
else if (type == "stat")
return lexical.indented + (isContinuedStatement(state, textAfter) ? statementIndent || indentUnit : 0);
else if (lexical.info == "switch" && !closing && parserConfig.doubleIndentSwitch != false)
return lexical.indented + (/^(?:case|default)\b/.test(textAfter) ? indentUnit : 2 * indentUnit);
else if (lexical.align) return lexical.column + (closing ? 0 : 1);
else return lexical.indented + (closing ? 0 : indentUnit);
},
electricInput: /^\s*(?:case .*?:|default:|\{|\})$/,
blockCommentStart: jsonMode ? null : "/*",
blockCommentEnd: jsonMode ? null : "*/",
lineComment: jsonMode ? null : "//",
fold: "brace",
closeBrackets: "()[]{}''\"\"``",
helperType: jsonMode ? "json" : "javascript",
jsonldMode: jsonldMode,
jsonMode: jsonMode
};
});
CodeMirror.registerHelper("wordChars", "javascript", /[\w$]/);
CodeMirror.defineMIME("text/javascript", "javascript");
CodeMirror.defineMIME("text/ecmascript", "javascript");
CodeMirror.defineMIME("application/javascript", "javascript");
CodeMirror.defineMIME("application/x-javascript", "javascript");
CodeMirror.defineMIME("application/ecmascript", "javascript");
CodeMirror.defineMIME("application/json", {name: "javascript", json: true});
CodeMirror.defineMIME("application/x-json", {name: "javascript", json: true});
CodeMirror.defineMIME("application/ld+json", {name: "javascript", jsonld: true});
CodeMirror.defineMIME("text/typescript", { name: "javascript", typescript: true });
CodeMirror.defineMIME("application/typescript", { name: "javascript", typescript: true });
});
Raw
xml.js
// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: http://codemirror.net/LICENSE
(function(mod) {
if (typeof exports == "object" && typeof module == "object") // CommonJS
mod(require("../../lib/codemirror"));
else if (typeof define == "function" && define.amd) // AMD
define(["../../lib/codemirror"], mod);
else // Plain browser env
mod(CodeMirror);
})(function(CodeMirror) {
"use strict";
CodeMirror.defineMode("xml", function(config, parserConfig) {
var indentUnit = config.indentUnit;
var multilineTagIndentFactor = parserConfig.multilineTagIndentFactor || 1;
var multilineTagIndentPastTag = parserConfig.multilineTagIndentPastTag;
if (multilineTagIndentPastTag == null) multilineTagIndentPastTag = true;
var Kludges = parserConfig.htmlMode ? {
autoSelfClosers: {'area': true, 'base': true, 'br': true, 'col': true, 'command': true,
'embed': true, 'frame': true, 'hr': true, 'img': true, 'input': true,
'keygen': true, 'link': true, 'meta': true, 'param': true, 'source': true,
'track': true, 'wbr': true, 'menuitem': true},
implicitlyClosed: {'dd': true, 'li': true, 'optgroup': true, 'option': true, 'p': true,
'rp': true, 'rt': true, 'tbody': true, 'td': true, 'tfoot': true,
'th': true, 'tr': true},
contextGrabbers: {
'dd': {'dd': true, 'dt': true},
'dt': {'dd': true, 'dt': true},
'li': {'li': true},
'option': {'option': true, 'optgroup': true},
'optgroup': {'optgroup': true},
'p': {'address': true, 'article': true, 'aside': true, 'blockquote': true, 'dir': true,
'div': true, 'dl': true, 'fieldset': true, 'footer': true, 'form': true,
'h1': true, 'h2': true, 'h3': true, 'h4': true, 'h5': true, 'h6': true,
'header': true, 'hgroup': true, 'hr': true, 'menu': true, 'nav': true, 'ol': true,
'p': true, 'pre': true, 'section': true, 'table': true, 'ul': true},
'rp': {'rp': true, 'rt': true},
'rt': {'rp': true, 'rt': true},
'tbody': {'tbody': true, 'tfoot': true},
'td': {'td': true, 'th': true},
'tfoot': {'tbody': true},
'th': {'td': true, 'th': true},
'thead': {'tbody': true, 'tfoot': true},
'tr': {'tr': true}
},
doNotIndent: {"pre": true},
allowUnquoted: true,
allowMissing: true,
caseFold: true
} : {
autoSelfClosers: {},
implicitlyClosed: {},
contextGrabbers: {},
doNotIndent: {},
allowUnquoted: false,
allowMissing: false,
caseFold: false
};
var alignCDATA = parserConfig.alignCDATA;
// Return variables for tokenizers
var type, setStyle;
function inText(stream, state) {
function chain(parser) {
state.tokenize = parser;
return parser(stream, state);
}
var ch = stream.next();
if (ch == "<") {
if (stream.eat("!")) {
if (stream.eat("[")) {
if (stream.match("CDATA[")) return chain(inBlock("atom", "]]>"));
else return null;
} else if (stream.match("--")) {
return chain(inBlock("comment", "-->"));
} else if (stream.match("DOCTYPE", true, true)) {
stream.eatWhile(/[\w\._\-]/);
return chain(doctype(1));
} else {
return null;
}
} else if (stream.eat("?")) {
stream.eatWhile(/[\w\._\-]/);
state.tokenize = inBlock("meta", "?>");
return "meta";
} else {
type = stream.eat("/") ? "closeTag" : "openTag";
state.tokenize = inTag;
return "tag bracket";
}
} else if (ch == "&") {
var ok;
if (stream.eat("#")) {
if (stream.eat("x")) {
ok = stream.eatWhile(/[a-fA-F\d]/) && stream.eat(";");
} else {
ok = stream.eatWhile(/[\d]/) && stream.eat(";");
}
} else {
ok = stream.eatWhile(/[\w\.\-:]/) && stream.eat(";");
}
return ok ? "atom" : "error";
} else {
stream.eatWhile(/[^&<]/);
return null;
}
}
inText.isInText = true;
function inTag(stream, state) {
var ch = stream.next();
if (ch == ">" || (ch == "/" && stream.eat(">"))) {
state.tokenize = inText;
type = ch == ">" ? "endTag" : "selfcloseTag";
return "tag bracket";
} else if (ch == "=") {
type = "equals";
return null;
} else if (ch == "<") {
state.tokenize = inText;
state.state = baseState;
state.tagName = state.tagStart = null;
var next = state.tokenize(stream, state);
return next ? next + " tag error" : "tag error";
} else if (/[\'\"]/.test(ch)) {
state.tokenize = inAttribute(ch);
state.stringStartCol = stream.column();
return state.tokenize(stream, state);
} else {
stream.match(/^[^\s\u00a0=<>\"\']*[^\s\u00a0=<>\"\'\/]/);
return "word";
}
}
function inAttribute(quote) {
var closure = function(stream, state) {
while (!stream.eol()) {
if (stream.next() == quote) {
state.tokenize = inTag;
break;
}
}
return "string";
};
closure.isInAttribute = true;
return closure;
}
function inBlock(style, terminator) {
return function(stream, state) {
while (!stream.eol()) {
if (stream.match(terminator)) {
state.tokenize = inText;
break;
}
stream.next();
}
return style;
};
}
function doctype(depth) {
return function(stream, state) {
var ch;
while ((ch = stream.next()) != null) {
if (ch == "<") {
state.tokenize = doctype(depth + 1);
return state.tokenize(stream, state);
} else if (ch == ">") {
if (depth == 1) {
state.tokenize = inText;
break;
} else {
state.tokenize = doctype(depth - 1);
return state.tokenize(stream, state);
}
}
}
return "meta";
};
}
function Context(state, tagName, startOfLine) {
this.prev = state.context;
this.tagName = tagName;
this.indent = state.indented;
this.startOfLine = startOfLine;
if (Kludges.doNotIndent.hasOwnProperty(tagName) || (state.context && state.context.noIndent))
this.noIndent = true;
}
function popContext(state) {
if (state.context) state.context = state.context.prev;
}
function maybePopContext(state, nextTagName) {
var parentTagName;
while (true) {
if (!state.context) {
return;
}
parentTagName = state.context.tagName;
if (!Kludges.contextGrabbers.hasOwnProperty(parentTagName) ||
!Kludges.contextGrabbers[parentTagName].hasOwnProperty(nextTagName)) {
return;
}
popContext(state);
}
}
function baseState(type, stream, state) {
if (type == "openTag") {
state.tagStart = stream.column();
return tagNameState;
} else if (type == "closeTag") {
return closeTagNameState;
} else {
return baseState;
}
}
function tagNameState(type, stream, state) {
if (type == "word") {
state.tagName = stream.current();
setStyle = "tag";
return attrState;
} else {
setStyle = "error";
return tagNameState;
}
}
function closeTagNameState(type, stream, state) {
if (type == "word") {
var tagName = stream.current();
if (state.context && state.context.tagName != tagName &&
Kludges.implicitlyClosed.hasOwnProperty(state.context.tagName))
popContext(state);
if (state.context && state.context.tagName == tagName) {
setStyle = "tag";
return closeState;
} else {
setStyle = "tag error";
return closeStateErr;
}
} else {
setStyle = "error";
return closeStateErr;
}
}
function closeState(type, _stream, state) {
if (type != "endTag") {
setStyle = "error";
return closeState;
}
popContext(state);
return baseState;
}
function closeStateErr(type, stream, state) {
setStyle = "error";
return closeState(type, stream, state);
}
function attrState(type, _stream, state) {
if (type == "word") {
setStyle = "attribute";
return attrEqState;
} else if (type == "endTag" || type == "selfcloseTag") {
var tagName = state.tagName, tagStart = state.tagStart;
state.tagName = state.tagStart = null;
if (type == "selfcloseTag" ||
Kludges.autoSelfClosers.hasOwnProperty(tagName)) {
maybePopContext(state, tagName);
} else {
maybePopContext(state, tagName);
state.context = new Context(state, tagName, tagStart == state.indented);
}
return baseState;
}
setStyle = "error";
return attrState;
}
function attrEqState(type, stream, state) {
if (type == "equals") return attrValueState;
if (!Kludges.allowMissing) setStyle = "error";
return attrState(type, stream, state);
}
function attrValueState(type, stream, state) {
if (type == "string") return attrContinuedState;
if (type == "word" && Kludges.allowUnquoted) {setStyle = "string"; return attrState;}
setStyle = "error";
return attrState(type, stream, state);
}
function attrContinuedState(type, stream, state) {
if (type == "string") return attrContinuedState;
return attrState(type, stream, state);
}
return {
startState: function() {
return {tokenize: inText,
state: baseState,
indented: 0,
tagName: null, tagStart: null,
context: null};
},
token: function(stream, state) {
if (!state.tagName && stream.sol())
state.indented = stream.indentation();
if (stream.eatSpace()) return null;
type = null;
var style = state.tokenize(stream, state);
if ((style || type) && style != "comment") {
setStyle = null;
state.state = state.state(type || style, stream, state);
if (setStyle)
style = setStyle == "error" ? style + " error" : setStyle;
}
return style;
},
indent: function(state, textAfter, fullLine) {
var context = state.context;
// Indent multi-line strings (e.g. css).
if (state.tokenize.isInAttribute) {
if (state.tagStart == state.indented)
return state.stringStartCol + 1;
else
return state.indented + indentUnit;
}
if (context && context.noIndent) return CodeMirror.Pass;
if (state.tokenize != inTag && state.tokenize != inText)
return fullLine ? fullLine.match(/^(\s*)/)[0].length : 0;
// Indent the starts of attribute names.
if (state.tagName) {
if (multilineTagIndentPastTag)
return state.tagStart + state.tagName.length + 2;
else
return state.tagStart + indentUnit * multilineTagIndentFactor;
}
if (alignCDATA && /<!\[CDATA\[/.test(textAfter)) return 0;
var tagAfter = textAfter && /^<(\/)?([\w_:\.-]*)/.exec(textAfter);
if (tagAfter && tagAfter[1]) { // Closing tag spotted
while (context) {
if (context.tagName == tagAfter[2]) {
context = context.prev;
break;
} else if (Kludges.implicitlyClosed.hasOwnProperty(context.tagName)) {
context = context.prev;
} else {
break;
}
}
} else if (tagAfter) { // Opening tag spotted
while (context) {
var grabbers = Kludges.contextGrabbers[context.tagName];
if (grabbers && grabbers.hasOwnProperty(tagAfter[2]))
context = context.prev;
else
break;
}
}
while (context && !context.startOfLine)
context = context.prev;
if (context) return context.indent + indentUnit;
else return 0;
},
electricInput: /<\/[\s\w:]+>$/,
blockCommentStart: "<!--",
blockCommentEnd: "-->",
configuration: parserConfig.htmlMode ? "html" : "xml",
helperType: parserConfig.htmlMode ? "html" : "xml"
};
});
CodeMirror.defineMIME("text/xml", "xml");
CodeMirror.defineMIME("application/xml", "xml");
if (!CodeMirror.mimeModes.hasOwnProperty("text/html"))
CodeMirror.defineMIME("text/html", {name: "xml", htmlMode: true});
});
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