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Adds swipe to archive gestures for Google's Inbox
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| // ==UserScript== | |
| // @name Swipe to Archive for Inbox | |
| // @namespace maurizi.org | |
| // @description Swipe to Archive for Google's Inbox | |
| // @include https://inbox.google.com/ | |
| // @include https://inbox.google.com/u/0/ | |
| // @include https://inbox.google.com/u/1/ | |
| // @include https://inbox.google.com/u/2/ | |
| // @include https://inbox.google.com/u/3/ | |
| // @include https://inbox.google.com/u/4/ | |
| // @version 1 | |
| // @grant none | |
| // ==/UserScript== | |
| /*! @license | |
| Slip.js 1.2.0 | |
| © 2014 Kornel Lesiński <[email protected]>. All rights reserved. | |
| Redistribution and use in source and binary forms, with or without modification, | |
| are permitted provided that the following conditions are met: | |
| 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. | |
| 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and | |
| the following disclaimer in the documentation and/or other materials provided with the distribution. | |
| THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, | |
| INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | |
| DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR | |
| SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, | |
| WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE | |
| USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| */ | |
| window['Slip'] = (function(){ | |
| 'use strict'; | |
| var damnYouChrome = /Chrome\/[34]/.test(navigator.userAgent); // For bugs that can't be programmatically detected :( Intended to catch all versions of Chrome 30-40 | |
| var needsBodyHandlerHack = damnYouChrome; // Otherwise I _sometimes_ don't get any touchstart events and only clicks instead. | |
| /* When dragging elements down in Chrome (tested 34-37) dragged element may appear below stationary elements. | |
| Looks like WebKit bug #61824, but iOS Safari doesn't have that problem. */ | |
| var compositorDoesNotOrderLayers = damnYouChrome; | |
| // -webkit-mess | |
| var testElement = document.createElement('div'); | |
| var transitionPrefix = "webkitTransition" in testElement.style ? "webkitTransition" : "transition"; | |
| var transformPrefix = "webkitTransform" in testElement.style ? "webkitTransform" : "transform"; | |
| var transformProperty = transformPrefix === "webkitTransform" ? "-webkit-transform" : "transform"; | |
| var userSelectPrefix = "webkitUserSelect" in testElement.style ? "webkitUserSelect" : "userSelect"; | |
| testElement.style[transformPrefix] = 'translateZ(0)'; | |
| var hwLayerMagic = testElement.style[transformPrefix] ? 'translateZ(0) ' : ''; | |
| var hwTopLayerMagic = testElement.style[transformPrefix] ? 'translateZ(1px) ' : ''; | |
| testElement = null; | |
| var globalInstances = 0; | |
| var attachedBodyHandlerHack = false; | |
| var nullHandler = function(){}; | |
| function Slip(container, options) { | |
| if ('string' === typeof container) container = document.querySelector(container); | |
| if (!container || !container.addEventListener) throw new Error("Please specify DOM node to attach to"); | |
| if (!this || this === window) return new Slip(container, options); | |
| this.options = options = options || {}; | |
| this.options.keepSwipingPercent = options.keepSwipingPercent || 0; | |
| this.options.minimumSwipeVelocity = options.minimumSwipeVelocity || 1; | |
| this.options.minimumSwipeTime = options.minimumSwipeTime || 110; | |
| // Functions used for as event handlers need usable `this` and must not change to be removable | |
| this.cancel = this.setState.bind(this, this.states.idle); | |
| this.onTouchStart = this.onTouchStart.bind(this); | |
| this.onTouchMove = this.onTouchMove.bind(this); | |
| this.onTouchEnd = this.onTouchEnd.bind(this); | |
| this.onMouseDown = this.onMouseDown.bind(this); | |
| this.onMouseMove = this.onMouseMove.bind(this); | |
| this.onMouseUp = this.onMouseUp.bind(this); | |
| this.onMouseLeave = this.onMouseLeave.bind(this); | |
| this.onSelection = this.onSelection.bind(this); | |
| this.setState(this.states.idle); | |
| this.attach(container); | |
| } | |
| function getTransform(node) { | |
| var transform = node.style[transformPrefix]; | |
| if (transform) { | |
| return { | |
| value:transform, | |
| original:transform, | |
| }; | |
| } | |
| if (window.getComputedStyle) { | |
| var style = window.getComputedStyle(node).getPropertyValue(transformProperty); | |
| if (style && style !== 'none') return {value:style, original:''}; | |
| } | |
| return {value:'', original:''}; | |
| } | |
| function findIndex(target, nodes) { | |
| var originalIndex = 0; | |
| var listCount = 0; | |
| for (var i=0; i < nodes.length; i++) { | |
| if (nodes[i].nodeType === 1) { | |
| listCount++; | |
| if (nodes[i] === target.node) { | |
| originalIndex = listCount-1; | |
| } | |
| } | |
| } | |
| return originalIndex; | |
| } | |
| // All functions in states are going to be executed in context of Slip object | |
| Slip.prototype = { | |
| container: null, | |
| options: {}, | |
| state: null, | |
| target: null, // the tapped/swiped/reordered node with height and backed up styles | |
| usingTouch: false, // there's no good way to detect touchscreen preference other than receiving a touch event (really, trust me). | |
| mouseHandlersAttached: false, | |
| startPosition: null, // x,y,time where first touch began | |
| latestPosition: null, // x,y,time where the finger is currently | |
| previousPosition: null, // x,y,time where the finger was ~100ms ago (for velocity calculation) | |
| canPreventScrolling: false, | |
| states: { | |
| idle: function idleStateInit() { | |
| this.target = null; | |
| this.usingTouch = false; | |
| this.removeMouseHandlers(); | |
| return { | |
| allowTextSelection: true, | |
| }; | |
| }, | |
| undecided: function undecidedStateInit() { | |
| this.target.height = this.target.node.offsetHeight; | |
| this.target.node.style[transitionPrefix] = ''; | |
| if (!this.dispatch(this.target.originalTarget, 'beforewait')) { | |
| if (this.dispatch(this.target.originalTarget, 'beforereorder')) { | |
| this.setState(this.states.reorder); | |
| } | |
| } else { | |
| var holdTimer = setTimeout(function(){ | |
| var move = this.getAbsoluteMovement(); | |
| if (this.canPreventScrolling && move.x < 15 && move.y < 25) { | |
| if (this.dispatch(this.target.originalTarget, 'beforereorder')) { | |
| this.setState(this.states.reorder); | |
| } | |
| } | |
| }.bind(this), 300); | |
| } | |
| return { | |
| leaveState: function() { | |
| clearTimeout(holdTimer); | |
| }, | |
| onMove: function() { | |
| var move = this.getAbsoluteMovement(); | |
| if (move.x > 20 && move.y < Math.max(100, this.target.height)) { | |
| if (this.dispatch(this.target.originalTarget, 'beforeswipe', {directionX: move.directionX, directionY: move.directionY})) { | |
| this.setState(this.states.swipe); | |
| return false; | |
| } else { | |
| this.setState(this.states.idle); | |
| } | |
| } | |
| if (move.y > 20) { | |
| this.setState(this.states.idle); | |
| } | |
| // Chrome likes sideways scrolling :( | |
| if (move.x > move.y*1.2) return false; | |
| }, | |
| onLeave: function() { | |
| this.setState(this.states.idle); | |
| }, | |
| onEnd: function() { | |
| var allowDefault = this.dispatch(this.target.originalTarget, 'tap'); | |
| this.setState(this.states.idle); | |
| return allowDefault; | |
| }, | |
| }; | |
| }, | |
| swipe: function swipeStateInit() { | |
| var swipeSuccess = false; | |
| var container = this.container; | |
| var originalIndex = findIndex(this.target, this.container.childNodes); | |
| container.className += ' slip-swiping-container'; | |
| function removeClass() { | |
| container.className = container.className.replace(/(?:^| )slip-swiping-container/,''); | |
| } | |
| this.target.height = this.target.node.offsetHeight; | |
| return { | |
| leaveState: function() { | |
| if (swipeSuccess) { | |
| this.animateSwipe(function(target){ | |
| target.node.style[transformPrefix] = target.baseTransform.original; | |
| target.node.style[transitionPrefix] = ''; | |
| if (this.dispatch(target.node, 'afterswipe')) { | |
| removeClass(); | |
| return true; | |
| } else { | |
| this.animateToZero(undefined, target); | |
| } | |
| }.bind(this)); | |
| } else { | |
| this.animateToZero(removeClass); | |
| this.dispatch(this.target.node, 'cancelswipe'); | |
| } | |
| }, | |
| onMove: function() { | |
| var move = this.getTotalMovement(); | |
| if (Math.abs(move.y) < this.target.height+20) { | |
| this.target.node.style[transformPrefix] = 'translate(' + move.x + 'px,0) ' + hwLayerMagic + this.target.baseTransform.value; | |
| return false; | |
| } else { | |
| this.setState(this.states.idle); | |
| } | |
| }, | |
| onLeave: function() { | |
| this.state.onEnd.call(this); | |
| }, | |
| onEnd: function() { | |
| var move = this.getAbsoluteMovement(); | |
| var velocity = move.x / move.time; | |
| // How far out has the item been swiped? | |
| var swipedPercent = Math.abs((this.startPosition.x - this.previousPosition.x) / this.container.clientWidth) * 100; | |
| var swiped = (velocity > this.options.minimumSwipeVelocity && move.time > this.options.minimumSwipeTime) || (this.options.keepSwipingPercent && swipedPercent > this.options.keepSwipingPercent); | |
| if (swiped) { | |
| if (this.dispatch(this.target.node, 'swipe', {direction: move.directionX, originalIndex: originalIndex})) { | |
| swipeSuccess = true; // can't animate here, leaveState overrides anim | |
| } | |
| } | |
| this.setState(this.states.idle); | |
| return !swiped; | |
| }, | |
| }; | |
| }, | |
| reorder: function reorderStateInit() { | |
| this.target.height = this.target.node.offsetHeight; | |
| var nodes = this.container.childNodes; | |
| var originalIndex = findIndex(this.target, nodes); | |
| var mouseOutsideTimer; | |
| var zero = this.target.node.offsetTop + this.target.height/2; | |
| var otherNodes = []; | |
| for(var i=0; i < nodes.length; i++) { | |
| if (nodes[i].nodeType != 1 || nodes[i] === this.target.node) continue; | |
| var t = nodes[i].offsetTop; | |
| nodes[i].style[transitionPrefix] = transformProperty + ' 0.2s ease-in-out'; | |
| otherNodes.push({ | |
| node: nodes[i], | |
| baseTransform: getTransform(nodes[i]), | |
| pos: t + (t < zero ? nodes[i].offsetHeight : 0) - zero, | |
| }); | |
| } | |
| this.target.node.className += ' slip-reordering'; | |
| this.target.node.style.zIndex = '99999'; | |
| this.target.node.style[userSelectPrefix] = 'none'; | |
| if (compositorDoesNotOrderLayers) { | |
| // Chrome's compositor doesn't sort 2D layers | |
| this.container.style.webkitTransformStyle = 'preserve-3d'; | |
| } | |
| function setPosition() { | |
| /*jshint validthis:true */ | |
| if (mouseOutsideTimer) { | |
| // don't care where the mouse is as long as it moves | |
| clearTimeout(mouseOutsideTimer); mouseOutsideTimer = null; | |
| } | |
| var move = this.getTotalMovement(); | |
| this.target.node.style[transformPrefix] = 'translate(0,' + move.y + 'px) ' + hwTopLayerMagic + this.target.baseTransform.value; | |
| var height = this.target.height; | |
| otherNodes.forEach(function(o){ | |
| var off = 0; | |
| if (o.pos < 0 && move.y < 0 && o.pos > move.y) { | |
| off = height; | |
| } | |
| else if (o.pos > 0 && move.y > 0 && o.pos < move.y) { | |
| off = -height; | |
| } | |
| // FIXME: should change accelerated/non-accelerated state lazily | |
| o.node.style[transformPrefix] = off ? 'translate(0,'+off+'px) ' + hwLayerMagic + o.baseTransform.value : o.baseTransform.original; | |
| }); | |
| return false; | |
| } | |
| setPosition.call(this); | |
| return { | |
| leaveState: function() { | |
| if (mouseOutsideTimer) clearTimeout(mouseOutsideTimer); | |
| if (compositorDoesNotOrderLayers) { | |
| this.container.style.webkitTransformStyle = ''; | |
| } | |
| this.target.node.className = this.target.node.className.replace(/(?:^| )slip-reordering/,''); | |
| this.target.node.style[userSelectPrefix] = ''; | |
| this.animateToZero(function(target){ | |
| target.node.style.zIndex = ''; | |
| }); | |
| otherNodes.forEach(function(o){ | |
| o.node.style[transformPrefix] = o.baseTransform.original; | |
| o.node.style[transitionPrefix] = ''; // FIXME: animate to new position | |
| }); | |
| }, | |
| onMove: setPosition, | |
| onLeave: function() { | |
| // don't let element get stuck if mouse left the window | |
| // but don't cancel immediately as it'd be annoying near window edges | |
| if (mouseOutsideTimer) clearTimeout(mouseOutsideTimer); | |
| mouseOutsideTimer = setTimeout(function(){ | |
| mouseOutsideTimer = null; | |
| this.cancel(); | |
| }.bind(this), 700); | |
| }, | |
| onEnd: function() { | |
| var move = this.getTotalMovement(); | |
| if (move.y < 0) { | |
| for(var i=0; i < otherNodes.length; i++) { | |
| if (otherNodes[i].pos > move.y) { | |
| this.dispatch(this.target.node, 'reorder', {spliceIndex:i, insertBefore:otherNodes[i].node, originalIndex: originalIndex}); | |
| break; | |
| } | |
| } | |
| } else { | |
| for(var i=otherNodes.length-1; i >= 0; i--) { | |
| if (otherNodes[i].pos < move.y) { | |
| this.dispatch(this.target.node, 'reorder', {spliceIndex:i+1, insertBefore:otherNodes[i+1] ? otherNodes[i+1].node : null, originalIndex: originalIndex}); | |
| break; | |
| } | |
| } | |
| } | |
| this.setState(this.states.idle); | |
| return false; | |
| }, | |
| }; | |
| }, | |
| }, | |
| attach: function(container) { | |
| globalInstances++; | |
| if (this.container) this.detach(); | |
| // In some cases taps on list elements send *only* click events and no touch events. Spotted only in Chrome 32+ | |
| // Having event listener on body seems to solve the issue (although AFAIK may disable smooth scrolling as a side-effect) | |
| if (!attachedBodyHandlerHack && needsBodyHandlerHack) { | |
| attachedBodyHandlerHack = true; | |
| document.body.addEventListener('touchstart', nullHandler, false); | |
| } | |
| this.container = container; | |
| this.otherNodes = []; | |
| // selection on iOS interferes with reordering | |
| document.addEventListener("selectionchange", this.onSelection, false); | |
| // cancel is called e.g. when iOS detects multitasking gesture | |
| this.container.addEventListener('touchcancel', this.cancel, false); | |
| this.container.addEventListener('touchstart', this.onTouchStart, false); | |
| this.container.addEventListener('touchmove', this.onTouchMove, false); | |
| this.container.addEventListener('touchend', this.onTouchEnd, false); | |
| this.container.addEventListener('mousedown', this.onMouseDown, false); | |
| // mousemove and mouseup are attached dynamically | |
| }, | |
| detach: function() { | |
| this.cancel(); | |
| this.container.removeEventListener('mousedown', this.onMouseDown, false); | |
| this.container.removeEventListener('touchend', this.onTouchEnd, false); | |
| this.container.removeEventListener('touchmove', this.onTouchMove, false); | |
| this.container.removeEventListener('touchstart', this.onTouchStart, false); | |
| this.container.removeEventListener('touchcancel', this.cancel, false); | |
| document.removeEventListener("selectionchange", this.onSelection, false); | |
| globalInstances--; | |
| if (!globalInstances && attachedBodyHandlerHack) { | |
| attachedBodyHandlerHack = false; | |
| document.body.removeEventListener('touchstart', nullHandler, false); | |
| } | |
| }, | |
| setState: function(newStateCtor){ | |
| if (this.state) { | |
| if (this.state.ctor === newStateCtor) return; | |
| if (this.state.leaveState) this.state.leaveState.call(this); | |
| } | |
| // Must be re-entrant in case ctor changes state | |
| var prevState = this.state; | |
| var nextState = newStateCtor.call(this); | |
| if (this.state === prevState) { | |
| nextState.ctor = newStateCtor; | |
| this.state = nextState; | |
| } | |
| }, | |
| findTargetNode: function(targetNode) { | |
| while(targetNode && targetNode.parentNode !== this.container) { | |
| targetNode = targetNode.parentNode; | |
| } | |
| return targetNode; | |
| }, | |
| onSelection: function(e) { | |
| var isRelated = e.target === document || this.findTargetNode(e); | |
| if (!isRelated) return; | |
| if (e.cancelable || e.defaultPrevented) { | |
| if (!this.state.allowTextSelection) { | |
| e.preventDefault(); | |
| } | |
| } else { | |
| // iOS doesn't allow selection to be prevented | |
| this.setState(this.states.idle); | |
| } | |
| }, | |
| addMouseHandlers: function() { | |
| // unlike touch events, mousemove/up is not conveniently fired on the same element, | |
| // but I don't need to listen to unrelated events all the time | |
| if (!this.mouseHandlersAttached) { | |
| this.mouseHandlersAttached = true; | |
| document.documentElement.addEventListener('mouseleave', this.onMouseLeave, false); | |
| window.addEventListener('mousemove', this.onMouseMove, true); | |
| window.addEventListener('mouseup', this.onMouseUp, true); | |
| window.addEventListener('blur', this.cancel, false); | |
| } | |
| }, | |
| removeMouseHandlers: function() { | |
| if (this.mouseHandlersAttached) { | |
| this.mouseHandlersAttached = false; | |
| document.documentElement.removeEventListener('mouseleave', this.onMouseLeave, false); | |
| window.removeEventListener('mousemove', this.onMouseMove, true); | |
| window.removeEventListener('mouseup', this.onMouseUp, true); | |
| window.removeEventListener('blur', this.cancel, false); | |
| } | |
| }, | |
| onMouseLeave: function(e) { | |
| if (this.usingTouch) return; | |
| if (e.target === document.documentElement || e.relatedTarget === document.documentElement) { | |
| if (this.state.onLeave) { | |
| this.state.onLeave.call(this); | |
| } | |
| } | |
| }, | |
| onMouseDown: function(e) { | |
| if (this.usingTouch || e.button != 0 || !this.setTarget(e)) return; | |
| this.addMouseHandlers(); // mouseup, etc. | |
| this.canPreventScrolling = true; // or rather it doesn't apply to mouse | |
| this.startAtPosition({ | |
| x: e.clientX, | |
| y: e.clientY, | |
| time: e.timeStamp, | |
| }); | |
| }, | |
| onTouchStart: function(e) { | |
| this.usingTouch = true; | |
| this.canPreventScrolling = true; | |
| // This implementation cares only about single touch | |
| if (e.touches.length > 1) { | |
| this.setState(this.states.idle); | |
| return; | |
| } | |
| if (!this.setTarget(e)) return; | |
| this.startAtPosition({ | |
| x: e.touches[0].clientX, | |
| y: e.touches[0].clientY - window.scrollY, | |
| time: e.timeStamp, | |
| }); | |
| }, | |
| setTarget: function(e) { | |
| var targetNode = this.findTargetNode(e.target); | |
| if (!targetNode) { | |
| this.setState(this.states.idle); | |
| return false; | |
| } | |
| //check for a scrollable parent | |
| var scrollContainer = targetNode.parentNode; | |
| while (scrollContainer){ | |
| if (scrollContainer.scrollHeight > scrollContainer.clientHeight && window.getComputedStyle(scrollContainer)['overflow-y'] != 'visible') break; | |
| else scrollContainer = scrollContainer.parentNode; | |
| } | |
| this.target = { | |
| originalTarget: e.target, | |
| node: targetNode, | |
| scrollContainer: scrollContainer, | |
| baseTransform: getTransform(targetNode), | |
| }; | |
| return true; | |
| }, | |
| startAtPosition: function(pos) { | |
| this.startPosition = this.previousPosition = this.latestPosition = pos; | |
| this.setState(this.states.undecided); | |
| }, | |
| updatePosition: function(e, pos) { | |
| if(this.target == null) | |
| return; | |
| this.latestPosition = pos; | |
| var triggerOffset = 40, | |
| offset = 0; | |
| var scrollable = this.target.scrollContainer || document.body, | |
| containerRect = scrollable.getBoundingClientRect(), | |
| targetRect = this.target.node.getBoundingClientRect(), | |
| bottomOffset = Math.min(containerRect.bottom, window.innerHeight) - targetRect.bottom, | |
| topOffset = targetRect.top - Math.max(containerRect.top, 0); | |
| if (bottomOffset < triggerOffset){ | |
| offset = triggerOffset - bottomOffset; | |
| } | |
| else if (topOffset < triggerOffset){ | |
| offset = topOffset - triggerOffset; | |
| } | |
| var prevScrollTop = scrollable.scrollTop; | |
| scrollable.scrollTop += offset; | |
| if (prevScrollTop != scrollable.scrollTop) this.startPosition.y += prevScrollTop-scrollable.scrollTop; | |
| if (this.state.onMove) { | |
| if (this.state.onMove.call(this) === false) { | |
| e.preventDefault(); | |
| } | |
| } | |
| // sample latestPosition 100ms for velocity | |
| if (this.latestPosition.time - this.previousPosition.time > 100) { | |
| this.previousPosition = this.latestPosition; | |
| } | |
| }, | |
| onMouseMove: function(e) { | |
| this.updatePosition(e, { | |
| x: e.clientX, | |
| y: e.clientY, | |
| time: e.timeStamp, | |
| }); | |
| }, | |
| onTouchMove: function(e) { | |
| this.updatePosition(e, { | |
| x: e.touches[0].clientX, | |
| y: e.touches[0].clientY - window.scrollY, | |
| time: e.timeStamp, | |
| }); | |
| // In Apple's touch model only the first move event after touchstart can prevent scrolling (and event.cancelable is broken) | |
| this.canPreventScrolling = false; | |
| }, | |
| onMouseUp: function(e) { | |
| if (this.usingTouch || e.button !== 0) return; | |
| if (this.state.onEnd && false === this.state.onEnd.call(this)) { | |
| e.preventDefault(); | |
| } | |
| }, | |
| onTouchEnd: function(e) { | |
| if (e.touches.length > 1) { | |
| this.cancel(); | |
| } else if (this.state.onEnd && false === this.state.onEnd.call(this)) { | |
| e.preventDefault(); | |
| } | |
| }, | |
| getTotalMovement: function() { | |
| return { | |
| x:this.latestPosition.x - this.startPosition.x, | |
| y:this.latestPosition.y - this.startPosition.y, | |
| }; | |
| }, | |
| getAbsoluteMovement: function() { | |
| return { | |
| x: Math.abs(this.latestPosition.x - this.startPosition.x), | |
| y: Math.abs(this.latestPosition.y - this.startPosition.y), | |
| time:this.latestPosition.time - this.startPosition.time, | |
| directionX:this.latestPosition.x - this.startPosition.x < 0 ? 'left' : 'right', | |
| directionY:this.latestPosition.y - this.startPosition.y < 0 ? 'up' : 'down', | |
| }; | |
| }, | |
| dispatch: function(targetNode, eventName, detail) { | |
| var event = document.createEvent('CustomEvent'); | |
| if (event && event.initCustomEvent) { | |
| event.initCustomEvent('slip:' + eventName, true, true, detail); | |
| } else { | |
| event = document.createEvent('Event'); | |
| event.initEvent('slip:' + eventName, true, true); | |
| event.detail = detail; | |
| } | |
| return targetNode.dispatchEvent(event); | |
| }, | |
| getSiblings: function(target) { | |
| var siblings = []; | |
| var tmp = target.node.nextSibling; | |
| while(tmp) { | |
| if (tmp.nodeType == 1) siblings.push({ | |
| node: tmp, | |
| baseTransform: getTransform(tmp), | |
| }); | |
| tmp = tmp.nextSibling; | |
| } | |
| return siblings; | |
| }, | |
| animateToZero: function(callback, target) { | |
| // save, because this.target/container could change during animation | |
| target = target || this.target; | |
| target.node.style[transitionPrefix] = transformProperty + ' 0.1s ease-out'; | |
| target.node.style[transformPrefix] = 'translate(0,0) ' + hwLayerMagic + target.baseTransform.value; | |
| setTimeout(function(){ | |
| target.node.style[transitionPrefix] = ''; | |
| target.node.style[transformPrefix] = target.baseTransform.original; | |
| if (callback) callback.call(this, target); | |
| }.bind(this), 101); | |
| }, | |
| animateSwipe: function(callback) { | |
| var target = this.target; | |
| var siblings = this.getSiblings(target); | |
| var emptySpaceTransform = 'translate(0,' + this.target.height + 'px) ' + hwLayerMagic + ' '; | |
| // FIXME: animate with real velocity | |
| target.node.style[transitionPrefix] = 'all 0.1s linear'; | |
| target.node.style[transformPrefix] = ' translate(' + (this.getTotalMovement().x > 0 ? '' : '-') + '100%,0) ' + hwLayerMagic + target.baseTransform.value; | |
| setTimeout(function(){ | |
| if (callback.call(this, target)) { | |
| siblings.forEach(function(o){ | |
| o.node.style[transitionPrefix] = ''; | |
| o.node.style[transformPrefix] = emptySpaceTransform + o.baseTransform.value; | |
| }); | |
| setTimeout(function(){ | |
| siblings.forEach(function(o){ | |
| o.node.style[transitionPrefix] = transformProperty + ' 0.1s ease-in-out'; | |
| o.node.style[transformPrefix] = 'translate(0,0) ' + hwLayerMagic + o.baseTransform.value; | |
| }); | |
| setTimeout(function(){ | |
| siblings.forEach(function(o){ | |
| o.node.style[transitionPrefix] = ''; | |
| o.node.style[transformPrefix] = o.baseTransform.original; | |
| }); | |
| },101); | |
| }, 1); | |
| } | |
| }.bind(this), 101); | |
| }, | |
| }; | |
| // AMD | |
| if ('function' === typeof define && define.amd) { | |
| define(function(){ | |
| return Slip; | |
| }); | |
| } | |
| return Slip; | |
| })(); | |
| /* | |
| Slip - swiping and reordering in lists of elements on touch screens, no fuss. | |
| Fires these events on list elements: | |
| • slip:swipe | |
| When swipe has been done and user has lifted finger off the screen. | |
| If you execute event.preventDefault() the element will be animated back to original position. | |
| Otherwise it will be animated off the list and set to display:none. | |
| • slip:beforeswipe | |
| Fired before first swipe movement starts. | |
| If you execute event.preventDefault() then element will not move at all. | |
| • slip:reorder | |
| Element has been dropped in new location. event.detail contains the location: | |
| • insertBefore: DOM node before which element has been dropped (null is the end of the list). Use with node.insertBefore(). | |
| • spliceIndex: Index of element before which current element has been dropped, not counting the element iself. | |
| For use with Array.splice() if the list is reflecting objects in some array. | |
| • slip:beforereorder | |
| When reordering movement starts. | |
| Element being reordered gets class `slip-reordering`. | |
| If you execute event.preventDefault() then element will not move at all. | |
| • slip:beforewait | |
| If you execute event.preventDefault() then reordering will begin immediately, blocking ability to scroll the page. | |
| • slip:tap | |
| When element was tapped without being swiped/reordered. | |
| • slip:cancelswipe | |
| Fired when the user stops dragging and the element returns to its original position. | |
| Usage: | |
| CSS: | |
| You should set `user-select:none` (and WebKit prefixes, sigh) on list elements, | |
| otherwise unstoppable and glitchy text selection in iOS will get in the way. | |
| You should set `overflow-x: hidden` on the container or body to prevent horizontal scrollbar | |
| appearing when elements are swiped off the list. | |
| var list = document.querySelector('ul#slippylist'); | |
| new Slip(list); | |
| list.addEventListener('slip:beforeswipe', function(e) { | |
| if (shouldNotSwipe(e.target)) e.preventDefault(); | |
| }); | |
| list.addEventListener('slip:swipe', function(e) { | |
| // e.target swiped | |
| if (thatWasSwipeToRemove) { | |
| e.target.parentNode.removeChild(e.target); | |
| } else { | |
| e.preventDefault(); // will animate back to original position | |
| } | |
| }); | |
| list.addEventListener('slip:beforereorder', function(e) { | |
| if (shouldNotReorder(e.target)) e.preventDefault(); | |
| }); | |
| list.addEventListener('slip:reorder', function(e) { | |
| // e.target reordered. | |
| if (reorderedOK) { | |
| e.target.parentNode.insertBefore(e.target, e.detail.insertBefore); | |
| } else { | |
| e.preventDefault(); | |
| } | |
| }); | |
| Requires: | |
| • Touch events | |
| • CSS transforms | |
| • Function.bind() | |
| Caveats: | |
| • Elements must not change size while reordering or swiping takes place (otherwise it will be visually out of sync) | |
| */ | |
| /*! @license | |
| Slip.js 1.2.0 | |
| © 2014 Kornel Lesiński <[email protected]>. All rights reserved. | |
| Redistribution and use in source and binary forms, with or without modification, | |
| are permitted provided that the following conditions are met: | |
| 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. | |
| 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and | |
| the following disclaimer in the documentation and/or other materials provided with the distribution. | |
| THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, | |
| INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | |
| DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR | |
| SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, | |
| WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE | |
| USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| */ | |
| window['Slip'] = (function(){ | |
| 'use strict'; | |
| var damnYouChrome = /Chrome\/[34]/.test(navigator.userAgent); // For bugs that can't be programmatically detected :( Intended to catch all versions of Chrome 30-40 | |
| var needsBodyHandlerHack = damnYouChrome; // Otherwise I _sometimes_ don't get any touchstart events and only clicks instead. | |
| /* When dragging elements down in Chrome (tested 34-37) dragged element may appear below stationary elements. | |
| Looks like WebKit bug #61824, but iOS Safari doesn't have that problem. */ | |
| var compositorDoesNotOrderLayers = damnYouChrome; | |
| // -webkit-mess | |
| var testElement = document.createElement('div'); | |
| var transitionPrefix = "webkitTransition" in testElement.style ? "webkitTransition" : "transition"; | |
| var transformPrefix = "webkitTransform" in testElement.style ? "webkitTransform" : "transform"; | |
| var transformProperty = transformPrefix === "webkitTransform" ? "-webkit-transform" : "transform"; | |
| var userSelectPrefix = "webkitUserSelect" in testElement.style ? "webkitUserSelect" : "userSelect"; | |
| testElement.style[transformPrefix] = 'translateZ(0)'; | |
| var hwLayerMagic = testElement.style[transformPrefix] ? 'translateZ(0) ' : ''; | |
| var hwTopLayerMagic = testElement.style[transformPrefix] ? 'translateZ(1px) ' : ''; | |
| testElement = null; | |
| var globalInstances = 0; | |
| var attachedBodyHandlerHack = false; | |
| var nullHandler = function(){}; | |
| function Slip(container, options) { | |
| if ('string' === typeof container) container = document.querySelector(container); | |
| if (!container || !container.addEventListener) throw new Error("Please specify DOM node to attach to"); | |
| if (!this || this === window) return new Slip(container, options); | |
| this.options = options = options || {}; | |
| this.options.keepSwipingPercent = options.keepSwipingPercent || 0; | |
| this.options.minimumSwipeVelocity = options.minimumSwipeVelocity || 1; | |
| this.options.minimumSwipeTime = options.minimumSwipeTime || 110; | |
| // Functions used for as event handlers need usable `this` and must not change to be removable | |
| this.cancel = this.setState.bind(this, this.states.idle); | |
| this.onTouchStart = this.onTouchStart.bind(this); | |
| this.onTouchMove = this.onTouchMove.bind(this); | |
| this.onTouchEnd = this.onTouchEnd.bind(this); | |
| this.onMouseDown = this.onMouseDown.bind(this); | |
| this.onMouseMove = this.onMouseMove.bind(this); | |
| this.onMouseUp = this.onMouseUp.bind(this); | |
| this.onMouseLeave = this.onMouseLeave.bind(this); | |
| this.onSelection = this.onSelection.bind(this); | |
| this.setState(this.states.idle); | |
| this.attach(container); | |
| } | |
| function getTransform(node) { | |
| var transform = node.style[transformPrefix]; | |
| if (transform) { | |
| return { | |
| value:transform, | |
| original:transform, | |
| }; | |
| } | |
| if (window.getComputedStyle) { | |
| var style = window.getComputedStyle(node).getPropertyValue(transformProperty); | |
| if (style && style !== 'none') return {value:style, original:''}; | |
| } | |
| return {value:'', original:''}; | |
| } | |
| function findIndex(target, nodes) { | |
| var originalIndex = 0; | |
| var listCount = 0; | |
| for (var i=0; i < nodes.length; i++) { | |
| if (nodes[i].nodeType === 1) { | |
| listCount++; | |
| if (nodes[i] === target.node) { | |
| originalIndex = listCount-1; | |
| } | |
| } | |
| } | |
| return originalIndex; | |
| } | |
| // All functions in states are going to be executed in context of Slip object | |
| Slip.prototype = { | |
| container: null, | |
| options: {}, | |
| state: null, | |
| target: null, // the tapped/swiped/reordered node with height and backed up styles | |
| usingTouch: false, // there's no good way to detect touchscreen preference other than receiving a touch event (really, trust me). | |
| mouseHandlersAttached: false, | |
| startPosition: null, // x,y,time where first touch began | |
| latestPosition: null, // x,y,time where the finger is currently | |
| previousPosition: null, // x,y,time where the finger was ~100ms ago (for velocity calculation) | |
| canPreventScrolling: false, | |
| states: { | |
| idle: function idleStateInit() { | |
| this.target = null; | |
| this.usingTouch = false; | |
| this.removeMouseHandlers(); | |
| return { | |
| allowTextSelection: true, | |
| }; | |
| }, | |
| undecided: function undecidedStateInit() { | |
| this.target.height = this.target.node.offsetHeight; | |
| this.target.node.style[transitionPrefix] = ''; | |
| if (!this.dispatch(this.target.originalTarget, 'beforewait')) { | |
| if (this.dispatch(this.target.originalTarget, 'beforereorder')) { | |
| this.setState(this.states.reorder); | |
| } | |
| } else { | |
| var holdTimer = setTimeout(function(){ | |
| var move = this.getAbsoluteMovement(); | |
| if (this.canPreventScrolling && move.x < 15 && move.y < 25) { | |
| if (this.dispatch(this.target.originalTarget, 'beforereorder')) { | |
| this.setState(this.states.reorder); | |
| } | |
| } | |
| }.bind(this), 300); | |
| } | |
| return { | |
| leaveState: function() { | |
| clearTimeout(holdTimer); | |
| }, | |
| onMove: function() { | |
| var move = this.getAbsoluteMovement(); | |
| if (move.x > 20 && move.y < Math.max(100, this.target.height)) { | |
| if (this.dispatch(this.target.originalTarget, 'beforeswipe', {directionX: move.directionX, directionY: move.directionY})) { | |
| this.setState(this.states.swipe); | |
| return false; | |
| } else { | |
| this.setState(this.states.idle); | |
| } | |
| } | |
| if (move.y > 20) { | |
| this.setState(this.states.idle); | |
| } | |
| // Chrome likes sideways scrolling :( | |
| if (move.x > move.y*1.2) return false; | |
| }, | |
| onLeave: function() { | |
| this.setState(this.states.idle); | |
| }, | |
| onEnd: function() { | |
| var allowDefault = this.dispatch(this.target.originalTarget, 'tap'); | |
| this.setState(this.states.idle); | |
| return allowDefault; | |
| }, | |
| }; | |
| }, | |
| swipe: function swipeStateInit() { | |
| var swipeSuccess = false; | |
| var container = this.container; | |
| var originalIndex = findIndex(this.target, this.container.childNodes); | |
| container.className += ' slip-swiping-container'; | |
| function removeClass() { | |
| container.className = container.className.replace(/(?:^| )slip-swiping-container/,''); | |
| } | |
| this.target.height = this.target.node.offsetHeight; | |
| return { | |
| leaveState: function() { | |
| if (swipeSuccess) { | |
| this.animateSwipe(function(target){ | |
| target.node.style[transformPrefix] = target.baseTransform.original; | |
| target.node.style[transitionPrefix] = ''; | |
| if (this.dispatch(target.node, 'afterswipe')) { | |
| removeClass(); | |
| return true; | |
| } else { | |
| this.animateToZero(undefined, target); | |
| } | |
| }.bind(this)); | |
| } else { | |
| this.animateToZero(removeClass); | |
| this.dispatch(this.target.node, 'cancelswipe'); | |
| } | |
| }, | |
| onMove: function() { | |
| var move = this.getTotalMovement(); | |
| if (Math.abs(move.y) < this.target.height+20) { | |
| this.target.node.style[transformPrefix] = 'translate(' + move.x + 'px,0) ' + hwLayerMagic + this.target.baseTransform.value; | |
| return false; | |
| } else { | |
| this.setState(this.states.idle); | |
| } | |
| }, | |
| onLeave: function() { | |
| this.state.onEnd.call(this); | |
| }, | |
| onEnd: function() { | |
| var move = this.getAbsoluteMovement(); | |
| var velocity = move.x / move.time; | |
| // How far out has the item been swiped? | |
| var swipedPercent = Math.abs((this.startPosition.x - this.previousPosition.x) / this.container.clientWidth) * 100; | |
| var swiped = (velocity > this.options.minimumSwipeVelocity && move.time > this.options.minimumSwipeTime) || (this.options.keepSwipingPercent && swipedPercent > this.options.keepSwipingPercent); | |
| if (swiped) { | |
| if (this.dispatch(this.target.node, 'swipe', {direction: move.directionX, originalIndex: originalIndex})) { | |
| swipeSuccess = true; // can't animate here, leaveState overrides anim | |
| } | |
| } | |
| this.setState(this.states.idle); | |
| return !swiped; | |
| }, | |
| }; | |
| }, | |
| reorder: function reorderStateInit() { | |
| this.target.height = this.target.node.offsetHeight; | |
| var nodes = this.container.childNodes; | |
| var originalIndex = findIndex(this.target, nodes); | |
| var mouseOutsideTimer; | |
| var zero = this.target.node.offsetTop + this.target.height/2; | |
| var otherNodes = []; | |
| for(var i=0; i < nodes.length; i++) { | |
| if (nodes[i].nodeType != 1 || nodes[i] === this.target.node) continue; | |
| var t = nodes[i].offsetTop; | |
| nodes[i].style[transitionPrefix] = transformProperty + ' 0.2s ease-in-out'; | |
| otherNodes.push({ | |
| node: nodes[i], | |
| baseTransform: getTransform(nodes[i]), | |
| pos: t + (t < zero ? nodes[i].offsetHeight : 0) - zero, | |
| }); | |
| } | |
| this.target.node.className += ' slip-reordering'; | |
| this.target.node.style.zIndex = '99999'; | |
| this.target.node.style[userSelectPrefix] = 'none'; | |
| if (compositorDoesNotOrderLayers) { | |
| // Chrome's compositor doesn't sort 2D layers | |
| this.container.style.webkitTransformStyle = 'preserve-3d'; | |
| } | |
| function setPosition() { | |
| /*jshint validthis:true */ | |
| if (mouseOutsideTimer) { | |
| // don't care where the mouse is as long as it moves | |
| clearTimeout(mouseOutsideTimer); mouseOutsideTimer = null; | |
| } | |
| var move = this.getTotalMovement(); | |
| this.target.node.style[transformPrefix] = 'translate(0,' + move.y + 'px) ' + hwTopLayerMagic + this.target.baseTransform.value; | |
| var height = this.target.height; | |
| otherNodes.forEach(function(o){ | |
| var off = 0; | |
| if (o.pos < 0 && move.y < 0 && o.pos > move.y) { | |
| off = height; | |
| } | |
| else if (o.pos > 0 && move.y > 0 && o.pos < move.y) { | |
| off = -height; | |
| } | |
| // FIXME: should change accelerated/non-accelerated state lazily | |
| o.node.style[transformPrefix] = off ? 'translate(0,'+off+'px) ' + hwLayerMagic + o.baseTransform.value : o.baseTransform.original; | |
| }); | |
| return false; | |
| } | |
| setPosition.call(this); | |
| return { | |
| leaveState: function() { | |
| if (mouseOutsideTimer) clearTimeout(mouseOutsideTimer); | |
| if (compositorDoesNotOrderLayers) { | |
| this.container.style.webkitTransformStyle = ''; | |
| } | |
| this.target.node.className = this.target.node.className.replace(/(?:^| )slip-reordering/,''); | |
| this.target.node.style[userSelectPrefix] = ''; | |
| this.animateToZero(function(target){ | |
| target.node.style.zIndex = ''; | |
| }); | |
| otherNodes.forEach(function(o){ | |
| o.node.style[transformPrefix] = o.baseTransform.original; | |
| o.node.style[transitionPrefix] = ''; // FIXME: animate to new position | |
| }); | |
| }, | |
| onMove: setPosition, | |
| onLeave: function() { | |
| // don't let element get stuck if mouse left the window | |
| // but don't cancel immediately as it'd be annoying near window edges | |
| if (mouseOutsideTimer) clearTimeout(mouseOutsideTimer); | |
| mouseOutsideTimer = setTimeout(function(){ | |
| mouseOutsideTimer = null; | |
| this.cancel(); | |
| }.bind(this), 700); | |
| }, | |
| onEnd: function() { | |
| var move = this.getTotalMovement(); | |
| if (move.y < 0) { | |
| for(var i=0; i < otherNodes.length; i++) { | |
| if (otherNodes[i].pos > move.y) { | |
| this.dispatch(this.target.node, 'reorder', {spliceIndex:i, insertBefore:otherNodes[i].node, originalIndex: originalIndex}); | |
| break; | |
| } | |
| } | |
| } else { | |
| for(var i=otherNodes.length-1; i >= 0; i--) { | |
| if (otherNodes[i].pos < move.y) { | |
| this.dispatch(this.target.node, 'reorder', {spliceIndex:i+1, insertBefore:otherNodes[i+1] ? otherNodes[i+1].node : null, originalIndex: originalIndex}); | |
| break; | |
| } | |
| } | |
| } | |
| this.setState(this.states.idle); | |
| return false; | |
| }, | |
| }; | |
| }, | |
| }, | |
| attach: function(container) { | |
| globalInstances++; | |
| if (this.container) this.detach(); | |
| // In some cases taps on list elements send *only* click events and no touch events. Spotted only in Chrome 32+ | |
| // Having event listener on body seems to solve the issue (although AFAIK may disable smooth scrolling as a side-effect) | |
| if (!attachedBodyHandlerHack && needsBodyHandlerHack) { | |
| attachedBodyHandlerHack = true; | |
| document.body.addEventListener('touchstart', nullHandler, false); | |
| } | |
| this.container = container; | |
| this.otherNodes = []; | |
| // selection on iOS interferes with reordering | |
| document.addEventListener("selectionchange", this.onSelection, false); | |
| // cancel is called e.g. when iOS detects multitasking gesture | |
| this.container.addEventListener('touchcancel', this.cancel, false); | |
| this.container.addEventListener('touchstart', this.onTouchStart, false); | |
| this.container.addEventListener('touchmove', this.onTouchMove, false); | |
| this.container.addEventListener('touchend', this.onTouchEnd, false); | |
| this.container.addEventListener('mousedown', this.onMouseDown, false); | |
| // mousemove and mouseup are attached dynamically | |
| }, | |
| detach: function() { | |
| this.cancel(); | |
| this.container.removeEventListener('mousedown', this.onMouseDown, false); | |
| this.container.removeEventListener('touchend', this.onTouchEnd, false); | |
| this.container.removeEventListener('touchmove', this.onTouchMove, false); | |
| this.container.removeEventListener('touchstart', this.onTouchStart, false); | |
| this.container.removeEventListener('touchcancel', this.cancel, false); | |
| document.removeEventListener("selectionchange", this.onSelection, false); | |
| globalInstances--; | |
| if (!globalInstances && attachedBodyHandlerHack) { | |
| attachedBodyHandlerHack = false; | |
| document.body.removeEventListener('touchstart', nullHandler, false); | |
| } | |
| }, | |
| setState: function(newStateCtor){ | |
| if (this.state) { | |
| if (this.state.ctor === newStateCtor) return; | |
| if (this.state.leaveState) this.state.leaveState.call(this); | |
| } | |
| // Must be re-entrant in case ctor changes state | |
| var prevState = this.state; | |
| var nextState = newStateCtor.call(this); | |
| if (this.state === prevState) { | |
| nextState.ctor = newStateCtor; | |
| this.state = nextState; | |
| } | |
| }, | |
| findTargetNode: function(targetNode) { | |
| while(targetNode && targetNode.parentNode !== this.container) { | |
| targetNode = targetNode.parentNode; | |
| } | |
| return targetNode; | |
| }, | |
| onSelection: function(e) { | |
| var isRelated = e.target === document || this.findTargetNode(e); | |
| if (!isRelated) return; | |
| if (e.cancelable || e.defaultPrevented) { | |
| if (!this.state.allowTextSelection) { | |
| e.preventDefault(); | |
| } | |
| } else { | |
| // iOS doesn't allow selection to be prevented | |
| this.setState(this.states.idle); | |
| } | |
| }, | |
| addMouseHandlers: function() { | |
| // unlike touch events, mousemove/up is not conveniently fired on the same element, | |
| // but I don't need to listen to unrelated events all the time | |
| if (!this.mouseHandlersAttached) { | |
| this.mouseHandlersAttached = true; | |
| document.documentElement.addEventListener('mouseleave', this.onMouseLeave, false); | |
| window.addEventListener('mousemove', this.onMouseMove, true); | |
| window.addEventListener('mouseup', this.onMouseUp, true); | |
| window.addEventListener('blur', this.cancel, false); | |
| } | |
| }, | |
| removeMouseHandlers: function() { | |
| if (this.mouseHandlersAttached) { | |
| this.mouseHandlersAttached = false; | |
| document.documentElement.removeEventListener('mouseleave', this.onMouseLeave, false); | |
| window.removeEventListener('mousemove', this.onMouseMove, true); | |
| window.removeEventListener('mouseup', this.onMouseUp, true); | |
| window.removeEventListener('blur', this.cancel, false); | |
| } | |
| }, | |
| onMouseLeave: function(e) { | |
| if (this.usingTouch) return; | |
| if (e.target === document.documentElement || e.relatedTarget === document.documentElement) { | |
| if (this.state.onLeave) { | |
| this.state.onLeave.call(this); | |
| } | |
| } | |
| }, | |
| onMouseDown: function(e) { | |
| if (this.usingTouch || e.button != 0 || !this.setTarget(e)) return; | |
| this.addMouseHandlers(); // mouseup, etc. | |
| this.canPreventScrolling = true; // or rather it doesn't apply to mouse | |
| this.startAtPosition({ | |
| x: e.clientX, | |
| y: e.clientY, | |
| time: e.timeStamp, | |
| }); | |
| }, | |
| onTouchStart: function(e) { | |
| this.usingTouch = true; | |
| this.canPreventScrolling = true; | |
| // This implementation cares only about single touch | |
| if (e.touches.length > 1) { | |
| this.setState(this.states.idle); | |
| return; | |
| } | |
| if (!this.setTarget(e)) return; | |
| this.startAtPosition({ | |
| x: e.touches[0].clientX, | |
| y: e.touches[0].clientY - window.scrollY, | |
| time: e.timeStamp, | |
| }); | |
| }, | |
| setTarget: function(e) { | |
| var targetNode = this.findTargetNode(e.target); | |
| if (!targetNode) { | |
| this.setState(this.states.idle); | |
| return false; | |
| } | |
| //check for a scrollable parent | |
| var scrollContainer = targetNode.parentNode; | |
| while (scrollContainer){ | |
| if (scrollContainer.scrollHeight > scrollContainer.clientHeight && window.getComputedStyle(scrollContainer)['overflow-y'] != 'visible') break; | |
| else scrollContainer = scrollContainer.parentNode; | |
| } | |
| this.target = { | |
| originalTarget: e.target, | |
| node: targetNode, | |
| scrollContainer: scrollContainer, | |
| baseTransform: getTransform(targetNode), | |
| }; | |
| return true; | |
| }, | |
| startAtPosition: function(pos) { | |
| this.startPosition = this.previousPosition = this.latestPosition = pos; | |
| this.setState(this.states.undecided); | |
| }, | |
| updatePosition: function(e, pos) { | |
| if(this.target == null) | |
| return; | |
| this.latestPosition = pos; | |
| var triggerOffset = 40, | |
| offset = 0; | |
| var scrollable = this.target.scrollContainer || document.body, | |
| containerRect = scrollable.getBoundingClientRect(), | |
| targetRect = this.target.node.getBoundingClientRect(), | |
| bottomOffset = Math.min(containerRect.bottom, window.innerHeight) - targetRect.bottom, | |
| topOffset = targetRect.top - Math.max(containerRect.top, 0); | |
| if (bottomOffset < triggerOffset){ | |
| offset = triggerOffset - bottomOffset; | |
| } | |
| else if (topOffset < triggerOffset){ | |
| offset = topOffset - triggerOffset; | |
| } | |
| var prevScrollTop = scrollable.scrollTop; | |
| scrollable.scrollTop += offset; | |
| if (prevScrollTop != scrollable.scrollTop) this.startPosition.y += prevScrollTop-scrollable.scrollTop; | |
| if (this.state.onMove) { | |
| if (this.state.onMove.call(this) === false) { | |
| e.preventDefault(); | |
| } | |
| } | |
| // sample latestPosition 100ms for velocity | |
| if (this.latestPosition.time - this.previousPosition.time > 100) { | |
| this.previousPosition = this.latestPosition; | |
| } | |
| }, | |
| onMouseMove: function(e) { | |
| this.updatePosition(e, { | |
| x: e.clientX, | |
| y: e.clientY, | |
| time: e.timeStamp, | |
| }); | |
| }, | |
| onTouchMove: function(e) { | |
| this.updatePosition(e, { | |
| x: e.touches[0].clientX, | |
| y: e.touches[0].clientY - window.scrollY, | |
| time: e.timeStamp, | |
| }); | |
| // In Apple's touch model only the first move event after touchstart can prevent scrolling (and event.cancelable is broken) | |
| this.canPreventScrolling = false; | |
| }, | |
| onMouseUp: function(e) { | |
| if (this.usingTouch || e.button !== 0) return; | |
| if (this.state.onEnd && false === this.state.onEnd.call(this)) { | |
| e.preventDefault(); | |
| } | |
| }, | |
| onTouchEnd: function(e) { | |
| if (e.touches.length > 1) { | |
| this.cancel(); | |
| } else if (this.state.onEnd && false === this.state.onEnd.call(this)) { | |
| e.preventDefault(); | |
| } | |
| }, | |
| getTotalMovement: function() { | |
| return { | |
| x:this.latestPosition.x - this.startPosition.x, | |
| y:this.latestPosition.y - this.startPosition.y, | |
| }; | |
| }, | |
| getAbsoluteMovement: function() { | |
| return { | |
| x: Math.abs(this.latestPosition.x - this.startPosition.x), | |
| y: Math.abs(this.latestPosition.y - this.startPosition.y), | |
| time:this.latestPosition.time - this.startPosition.time, | |
| directionX:this.latestPosition.x - this.startPosition.x < 0 ? 'left' : 'right', | |
| directionY:this.latestPosition.y - this.startPosition.y < 0 ? 'up' : 'down', | |
| }; | |
| }, | |
| dispatch: function(targetNode, eventName, detail) { | |
| var event = document.createEvent('CustomEvent'); | |
| if (event && event.initCustomEvent) { | |
| event.initCustomEvent('slip:' + eventName, true, true, detail); | |
| } else { | |
| event = document.createEvent('Event'); | |
| event.initEvent('slip:' + eventName, true, true); | |
| event.detail = detail; | |
| } | |
| return targetNode.dispatchEvent(event); | |
| }, | |
| getSiblings: function(target) { | |
| var siblings = []; | |
| var tmp = target.node.nextSibling; | |
| while(tmp) { | |
| if (tmp.nodeType == 1) siblings.push({ | |
| node: tmp, | |
| baseTransform: getTransform(tmp), | |
| }); | |
| tmp = tmp.nextSibling; | |
| } | |
| return siblings; | |
| }, | |
| animateToZero: function(callback, target) { | |
| // save, because this.target/container could change during animation | |
| target = target || this.target; | |
| target.node.style[transitionPrefix] = transformProperty + ' 0.1s ease-out'; | |
| target.node.style[transformPrefix] = 'translate(0,0) ' + hwLayerMagic + target.baseTransform.value; | |
| setTimeout(function(){ | |
| target.node.style[transitionPrefix] = ''; | |
| target.node.style[transformPrefix] = target.baseTransform.original; | |
| if (callback) callback.call(this, target); | |
| }.bind(this), 101); | |
| }, | |
| animateSwipe: function(callback) { | |
| var target = this.target; | |
| var siblings = this.getSiblings(target); | |
| var emptySpaceTransform = 'translate(0,' + this.target.height + 'px) ' + hwLayerMagic + ' '; | |
| // FIXME: animate with real velocity | |
| target.node.style[transitionPrefix] = 'all 0.1s linear'; | |
| target.node.style[transformPrefix] = ' translate(' + (this.getTotalMovement().x > 0 ? '' : '-') + '100%,0) ' + hwLayerMagic + target.baseTransform.value; | |
| setTimeout(function(){ | |
| if (callback.call(this, target)) { | |
| siblings.forEach(function(o){ | |
| o.node.style[transitionPrefix] = ''; | |
| o.node.style[transformPrefix] = emptySpaceTransform + o.baseTransform.value; | |
| }); | |
| setTimeout(function(){ | |
| siblings.forEach(function(o){ | |
| o.node.style[transitionPrefix] = transformProperty + ' 0.1s ease-in-out'; | |
| o.node.style[transformPrefix] = 'translate(0,0) ' + hwLayerMagic + o.baseTransform.value; | |
| }); | |
| setTimeout(function(){ | |
| siblings.forEach(function(o){ | |
| o.node.style[transitionPrefix] = ''; | |
| o.node.style[transformPrefix] = o.baseTransform.original; | |
| }); | |
| },101); | |
| }, 1); | |
| } | |
| }.bind(this), 101); | |
| }, | |
| }; | |
| // AMD | |
| if ('function' === typeof define && define.amd) { | |
| define(function(){ | |
| return Slip; | |
| }); | |
| } | |
| return Slip; | |
| })(); | |
| function closest(elem, selector) { | |
| var matchesSelector = elem.matches || elem.msMatchesSelector; | |
| while (elem) { | |
| if (matchesSelector.bind(elem)(selector)) { | |
| return elem; | |
| } else { | |
| elem = elem.parentNode; | |
| } | |
| } | |
| return false; | |
| } | |
| var dom = { | |
| containers: '.scroll-list-section-body', | |
| items: '.scroll-list-item', | |
| archiveButton: '[jsaction="click:global.archive"],[jsaction="global.archive"]', | |
| snoozeButton: '[jsaction^="click:"][jsaction*="toggle_snooze_menu"]' | |
| }; | |
| var sheet = window.document.styleSheets[0] | |
| // Add CSS rules to prevent text selection of subject lines, which messes with swiping | |
| sheet.insertRule('.scroll-list-item.top-level-item:not(.scroll-list-item-open) * { user-select: none; -moz-user-select: none; -webkit-user-select: none; -ms-user-select: none; }', sheet.cssRules.length); | |
| // Add rules for showing the background green or yellow | |
| sheet.insertRule(".scroll-list-section-body.swipe-right { background-color: green; }", sheet.cssRules.length); | |
| sheet.insertRule(".scroll-list-section-body.swipe-left { background-color: orange; }", sheet.cssRules.length); | |
| // We record which elements we've already wired up events for in this list | |
| var handledScrollSections = []; | |
| function setupEvents() { | |
| // There are two main selector here - the first is for bundles and unbundled email, the second is for emails inside bundled email groups | |
| var scrollSections = document.querySelectorAll(dom.containers); | |
| for(var i = 0; i < scrollSections.length; i++) { | |
| var elem = scrollSections[i]; | |
| if (handledScrollSections.indexOf(elem) === -1) { | |
| setupEventsForSection(elem); | |
| handledScrollSections.push(elem); | |
| } | |
| } | |
| } | |
| function setupEventsForSection(elem) { | |
| new Slip(elem, {keepSwipingPercent: 50}); | |
| elem.addEventListener('slip:beforeswipe', function(e) { | |
| var container = closest(e.target, dom.containers); | |
| var swipedItem = closest(e.target, dom.items); | |
| var matchesSelector = swipedItem.matches || swipedItem.msMatchesSelector; | |
| // TODO: Enable snoozing after I figure out how to trigger it :( | |
| if (e.detail.directionX === "left" || matchesSelector.bind(swipedItem)('.scroll-list-item-open')) { | |
| e.preventDefault(); | |
| console.log('left'); | |
| return; | |
| } | |
| container.classList.remove('swipe-right'); | |
| container.classList.remove('swipe-left'); | |
| if (e.detail.directionX === "left") { | |
| container.classList.add('swipe-left'); | |
| } else { | |
| container.classList.add('swipe-right'); | |
| } | |
| console.log('end'); | |
| }); | |
| // When swiping is done remove backgrounds from containers | |
| elem.addEventListener('slip:afterswipe', function(e) { | |
| var container = closest(e.target, dom.containers); | |
| container.classList.remove('swipe-right'); | |
| container.classList.remove('swipe-left'); | |
| }); | |
| elem.addEventListener('slip:cancelswipe', function(e) { | |
| var container = closest(e.target, dom.containers); | |
| container.classList.remove('swipe-right'); | |
| container.classList.remove('swipe-left'); | |
| }); | |
| elem.addEventListener('slip:swipe', function(e) { | |
| e.preventDefault(); | |
| var event = new MouseEvent('click', { | |
| 'view': window, | |
| 'bubbles': true, | |
| 'cancelable': true | |
| }); | |
| if (e.detail.direction === "right") { | |
| var button = e.target.querySelector(dom.archiveButton); | |
| } else { | |
| return; | |
| // TODO: This *does* get the button, but triggering a click on it does nothing... | |
| var button = e.target.querySelector(dom.snoozeButton); | |
| } | |
| button.dispatchEvent(event); | |
| }); | |
| } | |
| // Call setupEvents once when the page loads | |
| setupEvents(); | |
| // This is the container of all of the scroll sections, we'll listen for DOM changes to wire up events for new emails | |
| var mainContainer = document.querySelector('[role="list"][aria-multiselectable="false"]'); | |
| // Setup MutationObserver to wire events when new emails are added | |
| var observer = new MutationObserver(setupEvents); | |
| observer.observe(mainContainer, {subtree: true, childList: true}); |
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