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Added new Option:scrollSectionToBottomFromBottom: true - If set to false navigation events will always scroll to the top of a section even if the viewport is at the botto
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/*! | |
* fullPage 2.8.1 | |
* https://github.com/alvarotrigo/fullPage.js | |
* @license MIT licensed | |
* | |
* Copyright (C) 2015 alvarotrigo.com - A project by Alvaro Trigo | |
*/ | |
(function(global, factory) { | |
'use strict'; | |
if (typeof define === 'function' && define.amd) { | |
define(['jquery'], function($) { | |
return factory($, global, global.document, global.Math); | |
}); | |
} else if (typeof exports !== 'undefined') { | |
module.exports = factory(require('jquery'), global, global.document, global.Math); | |
} else { | |
factory(jQuery, global, global.document, global.Math); | |
} | |
})(typeof window !== 'undefined' ? window : this, function($, window, document, Math, undefined) { | |
'use strict'; | |
// keeping central set of classnames and selectors | |
var WRAPPER = 'fullpage-wrapper'; | |
var WRAPPER_SEL = '.' + WRAPPER; | |
// slimscroll | |
var SCROLLABLE = 'fp-scrollable'; | |
var SCROLLABLE_SEL = '.' + SCROLLABLE; | |
// util | |
var RESPONSIVE = 'fp-responsive'; | |
var NO_TRANSITION = 'fp-notransition'; | |
var DESTROYED = 'fp-destroyed'; | |
var ENABLED = 'fp-enabled'; | |
var VIEWING_PREFIX = 'fp-viewing'; | |
var ACTIVE = 'active'; | |
var ACTIVE_SEL = '.' + ACTIVE; | |
var COMPLETELY = 'fp-completely'; | |
var COMPLETELY_SEL = '.' + COMPLETELY; | |
// section | |
var SECTION_DEFAULT_SEL = '.section'; | |
var SECTION = 'fp-section'; | |
var SECTION_SEL = '.' + SECTION; | |
var SECTION_ACTIVE_SEL = SECTION_SEL + ACTIVE_SEL; | |
var SECTION_FIRST_SEL = SECTION_SEL + ':first'; | |
var SECTION_LAST_SEL = SECTION_SEL + ':last'; | |
var TABLE_CELL = 'fp-tableCell'; | |
var TABLE_CELL_SEL = '.' + TABLE_CELL; | |
var AUTO_HEIGHT = 'fp-auto-height'; | |
var AUTO_HEIGHT_SEL = '.fp-auto-height'; | |
var NORMAL_SCROLL = 'fp-normal-scroll'; | |
var NORMAL_SCROLL_SEL = '.fp-normal-scroll'; | |
// section nav | |
var SECTION_NAV = 'fp-nav'; | |
var SECTION_NAV_SEL = '#' + SECTION_NAV; | |
var SECTION_NAV_TOOLTIP = 'fp-tooltip'; | |
var SECTION_NAV_TOOLTIP_SEL='.'+SECTION_NAV_TOOLTIP; | |
var SHOW_ACTIVE_TOOLTIP = 'fp-show-active'; | |
// slide | |
var SLIDE_DEFAULT_SEL = '.slide'; | |
var SLIDE = 'fp-slide'; | |
var SLIDE_SEL = '.' + SLIDE; | |
var SLIDE_ACTIVE_SEL = SLIDE_SEL + ACTIVE_SEL; | |
var SLIDES_WRAPPER = 'fp-slides'; | |
var SLIDES_WRAPPER_SEL = '.' + SLIDES_WRAPPER; | |
var SLIDES_CONTAINER = 'fp-slidesContainer'; | |
var SLIDES_CONTAINER_SEL = '.' + SLIDES_CONTAINER; | |
var TABLE = 'fp-table'; | |
// slide nav | |
var SLIDES_NAV = 'fp-slidesNav'; | |
var SLIDES_NAV_SEL = '.' + SLIDES_NAV; | |
var SLIDES_NAV_LINK_SEL = SLIDES_NAV_SEL + ' a'; | |
var SLIDES_ARROW = 'fp-controlArrow'; | |
var SLIDES_ARROW_SEL = '.' + SLIDES_ARROW; | |
var SLIDES_PREV = 'fp-prev'; | |
var SLIDES_PREV_SEL = '.' + SLIDES_PREV; | |
var SLIDES_ARROW_PREV = SLIDES_ARROW + ' ' + SLIDES_PREV; | |
var SLIDES_ARROW_PREV_SEL = SLIDES_ARROW_SEL + SLIDES_PREV_SEL; | |
var SLIDES_NEXT = 'fp-next'; | |
var SLIDES_NEXT_SEL = '.' + SLIDES_NEXT; | |
var SLIDES_ARROW_NEXT = SLIDES_ARROW + ' ' + SLIDES_NEXT; | |
var SLIDES_ARROW_NEXT_SEL = SLIDES_ARROW_SEL + SLIDES_NEXT_SEL; | |
var $window = $(window); | |
var $document = $(document); | |
// Default options for iScroll.js used when using scrollOverflow | |
var iscrollOptions = { | |
scrollbars: true, | |
mouseWheel: true, | |
hideScrollbars: false, | |
fadeScrollbars: false, | |
disableMouse: true, | |
//fixing bug in iScroll with links: https://github.com/cubiq/iscroll/issues/783 | |
click: true | |
}; | |
$.fn.fullpage = function(options) { | |
//only once my friend! | |
if($('html').hasClass(ENABLED)){ displayWarnings(); return; } | |
// common jQuery objects | |
var $htmlBody = $('html, body'); | |
var $body = $('body'); | |
var FP = $.fn.fullpage; | |
// Create some defaults, extending them with any options that were provided | |
options = $.extend({ | |
//navigation | |
menu: false, | |
anchors:[], | |
lockAnchors: false, | |
navigation: false, | |
navigationPosition: 'right', | |
navigationTooltips: [], | |
showActiveTooltip: false, | |
slidesNavigation: false, | |
slidesNavPosition: 'bottom', | |
scrollBar: false, | |
hybrid: false, | |
scrollSectionToBottomFromBottom: true, | |
//scrolling | |
css3: true, | |
scrollingSpeed: 700, | |
autoScrolling: true, | |
fitToSection: true, | |
fitToSectionDelay: 1000, | |
easing: 'easeInOutCubic', | |
easingcss3: 'ease', | |
loopBottom: false, | |
loopTop: false, | |
loopHorizontal: true, | |
continuousVertical: false, | |
normalScrollElements: null, | |
scrollOverflow: false, | |
scrollOverflowHandler: iscrollHandler, | |
scrollOverflowOptions: null, | |
touchSensitivity: 5, | |
normalScrollElementTouchThreshold: 5, | |
//Accessibility | |
keyboardScrolling: true, | |
animateAnchor: true, | |
recordHistory: true, | |
//design | |
controlArrows: true, | |
controlArrowColor: '#fff', | |
verticalCentered: true, | |
sectionsColor : [], | |
paddingTop: 0, | |
paddingBottom: 0, | |
fixedElements: null, | |
responsive: 0, //backwards compabitility with responsiveWiddth | |
responsiveWidth: 0, | |
responsiveHeight: 0, | |
//Custom selectors | |
sectionSelector: SECTION_DEFAULT_SEL, | |
slideSelector: SLIDE_DEFAULT_SEL, | |
//events | |
afterLoad: null, | |
onLeave: null, | |
afterRender: null, | |
afterResize: null, | |
afterReBuild: null, | |
afterSlideLoad: null, | |
onSlideLeave: null | |
}, options); | |
displayWarnings(); | |
//extending iScroll options with the user custom ones | |
iscrollOptions = $.extend(iscrollOptions, options.scrollOverflowOptions); | |
//easeInOutCubic animation included in the plugin | |
$.extend($.easing,{ easeInOutCubic: function (x, t, b, c, d) {if ((t/=d/2) < 1) return c/2*t*t*t + b;return c/2*((t-=2)*t*t + 2) + b;}}); | |
/** | |
* Sets the autoScroll option. | |
* It changes the scroll bar visibility and the history of the site as a result. | |
*/ | |
FP.setAutoScrolling = function(value, type){ | |
setVariableState('autoScrolling', value, type); | |
var element = $(SECTION_ACTIVE_SEL); | |
if(options.autoScrolling && !options.scrollBar){ | |
$htmlBody.css({ | |
'overflow' : 'hidden', | |
'height' : '100%' | |
}); | |
FP.setRecordHistory(originals.recordHistory, 'internal'); | |
//for IE touch devices | |
container.css({ | |
'-ms-touch-action': 'none', | |
'touch-action': 'none' | |
}); | |
if(element.length){ | |
//moving the container up | |
silentScroll(element.position().top); | |
} | |
}else{ | |
$htmlBody.css({ | |
'overflow' : 'visible', | |
'height' : 'initial' | |
}); | |
FP.setRecordHistory(false, 'internal'); | |
//for IE touch devices | |
container.css({ | |
'-ms-touch-action': '', | |
'touch-action': '' | |
}); | |
silentScroll(0); | |
//scrolling the page to the section with no animation | |
if (element.length) { | |
$htmlBody.scrollTop(element.position().top); | |
} | |
} | |
}; | |
/** | |
* Defines wheter to record the history for each hash change in the URL. | |
*/ | |
FP.setRecordHistory = function(value, type){ | |
setVariableState('recordHistory', value, type); | |
}; | |
/** | |
* Defines the scrolling speed | |
*/ | |
FP.setScrollingSpeed = function(value, type){ | |
setVariableState('scrollingSpeed', value, type); | |
}; | |
/** | |
* Sets fitToSection | |
*/ | |
FP.setFitToSection = function(value, type){ | |
setVariableState('fitToSection', value, type); | |
}; | |
/** | |
* Sets lockAnchors | |
*/ | |
FP.setLockAnchors = function(value){ | |
options.lockAnchors = value; | |
}; | |
/** | |
* Adds or remove the possiblity of scrolling through sections by using the mouse wheel or the trackpad. | |
*/ | |
FP.setMouseWheelScrolling = function (value){ | |
if(value){ | |
addMouseWheelHandler(); | |
addMiddleWheelHandler(); | |
}else{ | |
removeMouseWheelHandler(); | |
removeMiddleWheelHandler(); | |
} | |
}; | |
/** | |
* Adds or remove the possiblity of scrolling through sections by using the mouse wheel/trackpad or touch gestures. | |
* Optionally a second parameter can be used to specify the direction for which the action will be applied. | |
* | |
* @param directions string containing the direction or directions separated by comma. | |
*/ | |
FP.setAllowScrolling = function (value, directions){ | |
if(typeof directions !== 'undefined'){ | |
directions = directions.replace(/ /g,'').split(','); | |
$.each(directions, function (index, direction){ | |
setIsScrollAllowed(value, direction, 'm'); | |
}); | |
} | |
else if(value){ | |
FP.setMouseWheelScrolling(true); | |
addTouchHandler(); | |
}else{ | |
FP.setMouseWheelScrolling(false); | |
removeTouchHandler(); | |
} | |
}; | |
/** | |
* Adds or remove the possiblity of scrolling through sections by using the keyboard arrow keys | |
*/ | |
FP.setKeyboardScrolling = function (value, directions){ | |
if(typeof directions !== 'undefined'){ | |
directions = directions.replace(/ /g,'').split(','); | |
$.each(directions, function (index, direction){ | |
setIsScrollAllowed(value, direction, 'k'); | |
}); | |
}else{ | |
options.keyboardScrolling = value; | |
} | |
}; | |
/** | |
* Moves the page up one section. | |
*/ | |
FP.moveSectionUp = function(){ | |
var prev = $(SECTION_ACTIVE_SEL).prev(SECTION_SEL); | |
//looping to the bottom if there's no more sections above | |
if (!prev.length && (options.loopTop || options.continuousVertical)) { | |
prev = $(SECTION_SEL).last(); | |
} | |
if (prev.length) { | |
scrollPage(prev, null, true); | |
} | |
}; | |
/** | |
* Moves the page down one section. | |
*/ | |
FP.moveSectionDown = function (){ | |
var next = $(SECTION_ACTIVE_SEL).next(SECTION_SEL); | |
//looping to the top if there's no more sections below | |
if(!next.length && | |
(options.loopBottom || options.continuousVertical)){ | |
next = $(SECTION_SEL).first(); | |
} | |
if(next.length){ | |
scrollPage(next, null, false); | |
} | |
}; | |
/** | |
* Moves the page to the given section and slide with no animation. | |
* Anchors or index positions can be used as params. | |
*/ | |
FP.silentMoveTo = function(sectionAnchor, slideAnchor){ | |
FP.setScrollingSpeed (0, 'internal'); | |
FP.moveTo(sectionAnchor, slideAnchor); | |
FP.setScrollingSpeed (originals.scrollingSpeed, 'internal'); | |
}; | |
/** | |
* Moves the page to the given section and slide. | |
* Anchors or index positions can be used as params. | |
*/ | |
FP.moveTo = function (sectionAnchor, slideAnchor){ | |
var destiny = getSectionByAnchor(sectionAnchor); | |
if (typeof slideAnchor !== 'undefined'){ | |
scrollPageAndSlide(sectionAnchor, slideAnchor); | |
}else if(destiny.length > 0){ | |
scrollPage(destiny); | |
} | |
}; | |
/** | |
* Slides right the slider of the active section. | |
* Optional `section` param. | |
*/ | |
FP.moveSlideRight = function(section){ | |
moveSlide('next', section); | |
}; | |
/** | |
* Slides left the slider of the active section. | |
* Optional `section` param. | |
*/ | |
FP.moveSlideLeft = function(section){ | |
moveSlide('prev', section); | |
}; | |
/** | |
* When resizing is finished, we adjust the slides sizes and positions | |
*/ | |
FP.reBuild = function(resizing){ | |
if(container.hasClass(DESTROYED)){ return; } //nothing to do if the plugin was destroyed | |
isResizing = true; | |
windowsHeight = $window.height(); //updating global var | |
$(SECTION_SEL).each(function(){ | |
var slidesWrap = $(this).find(SLIDES_WRAPPER_SEL); | |
var slides = $(this).find(SLIDE_SEL); | |
//adjusting the height of the table-cell for IE and Firefox | |
if(options.verticalCentered){ | |
$(this).find(TABLE_CELL_SEL).css('height', getTableHeight($(this)) + 'px'); | |
} | |
$(this).css('height', windowsHeight + 'px'); | |
//resizing the scrolling divs | |
if(options.scrollOverflow){ | |
if(slides.length){ | |
slides.each(function(){ | |
createSlimScrolling($(this)); | |
}); | |
}else{ | |
createSlimScrolling($(this)); | |
} | |
} | |
//adjusting the position fo the FULL WIDTH slides... | |
if (slides.length > 1) { | |
landscapeScroll(slidesWrap, slidesWrap.find(SLIDE_ACTIVE_SEL)); | |
} | |
}); | |
var activeSection = $(SECTION_ACTIVE_SEL); | |
var sectionIndex = activeSection.index(SECTION_SEL); | |
//isn't it the first section? | |
if(sectionIndex){ | |
//adjusting the position for the current section | |
FP.silentMoveTo(sectionIndex + 1); | |
} | |
isResizing = false; | |
$.isFunction( options.afterResize ) && resizing && options.afterResize.call(container); | |
$.isFunction( options.afterReBuild ) && !resizing && options.afterReBuild.call(container); | |
}; | |
/** | |
* Turns fullPage.js to normal scrolling mode when the viewport `width` or `height` | |
* are smaller than the set limit values. | |
*/ | |
FP.setResponsive = function (active){ | |
var isResponsive = $body.hasClass(RESPONSIVE); | |
if(active){ | |
if(!isResponsive){ | |
FP.setAutoScrolling(false, 'internal'); | |
FP.setFitToSection(false, 'internal'); | |
$(SECTION_NAV_SEL).hide(); | |
$body.addClass(RESPONSIVE); | |
} | |
} | |
else if(isResponsive){ | |
FP.setAutoScrolling(originals.autoScrolling, 'internal'); | |
FP.setFitToSection(originals.autoScrolling, 'internal'); | |
$(SECTION_NAV_SEL).show(); | |
$body.removeClass(RESPONSIVE); | |
} | |
}; | |
//flag to avoid very fast sliding for landscape sliders | |
var slideMoving = false; | |
var isTouchDevice = navigator.userAgent.match(/(iPhone|iPod|iPad|Android|playbook|silk|BlackBerry|BB10|Windows Phone|Tizen|Bada|webOS|IEMobile|Opera Mini)/); | |
var isTouch = (('ontouchstart' in window) || (navigator.msMaxTouchPoints > 0) || (navigator.maxTouchPoints)); | |
var container = $(this); | |
var windowsHeight = $window.height(); | |
var isResizing = false; | |
var isWindowFocused = true; | |
var lastScrolledDestiny; | |
var lastScrolledSlide; | |
var canScroll = true; | |
var scrollings = []; | |
var nav; | |
var controlPressed; | |
var isScrollAllowed = {}; | |
isScrollAllowed.m = { 'up':true, 'down':true, 'left':true, 'right':true }; | |
isScrollAllowed.k = $.extend(true,{}, isScrollAllowed.m); | |
var originals = $.extend(true, {}, options); //deep copy | |
//timeouts | |
var resizeId; | |
var afterSectionLoadsId; | |
var afterSlideLoadsId; | |
var scrollId; | |
var scrollId2; | |
var keydownId; | |
if($(this).length){ | |
init(); | |
bindEvents(); | |
} | |
function init(){ | |
//if css3 is not supported, it will use jQuery animations | |
if(options.css3){ | |
options.css3 = support3d(); | |
} | |
options.scrollBar = options.scrollBar || options.hybrid; | |
setOptionsFromDOM(); | |
prepareDom(); | |
FP.setAllowScrolling(true); | |
FP.setAutoScrolling(options.autoScrolling, 'internal'); | |
//the starting point is a slide? | |
var activeSlide = $(SECTION_ACTIVE_SEL).find(SLIDE_ACTIVE_SEL); | |
//the active section isn't the first one? Is not the first slide of the first section? Then we load that section/slide by default. | |
if( activeSlide.length && ($(SECTION_ACTIVE_SEL).index(SECTION_SEL) !== 0 || ($(SECTION_ACTIVE_SEL).index(SECTION_SEL) === 0 && activeSlide.index() !== 0))){ | |
silentLandscapeScroll(activeSlide); | |
} | |
responsive(); | |
//setting the class for the body element | |
setBodyClass(); | |
if(document.readyState === 'complete'){ | |
scrollToAnchor(); | |
} | |
$window.on('load', scrollToAnchor); | |
} | |
function bindEvents(){ | |
$window | |
//when scrolling... | |
.on('scroll', scrollHandler) | |
//detecting any change on the URL to scroll to the given anchor link | |
//(a way to detect back history button as we play with the hashes on the URL) | |
.on('hashchange', hashChangeHandler) | |
//when opening a new tab (ctrl + t), `control` won't be pressed when comming back. | |
.blur(blurHandler) | |
//when resizing the site, we adjust the heights of the sections, slimScroll... | |
.resize(resizeHandler); | |
$document | |
//Sliding with arrow keys, both, vertical and horizontal | |
.keydown(keydownHandler) | |
//to prevent scrolling while zooming | |
.keyup(keyUpHandler) | |
//Scrolls to the section when clicking the navigation bullet | |
.on('click touchstart', SECTION_NAV_SEL + ' a', sectionBulletHandler) | |
//Scrolls the slider to the given slide destination for the given section | |
.on('click touchstart', SLIDES_NAV_LINK_SEL, slideBulletHandler) | |
.on('click', SECTION_NAV_TOOLTIP_SEL, tooltipTextHandler); | |
//Scrolling horizontally when clicking on the slider controls. | |
$(SECTION_SEL).on('click touchstart', SLIDES_ARROW_SEL, slideArrowHandler); | |
/** | |
* Applying normalScroll elements. | |
* Ignoring the scrolls over the specified selectors. | |
*/ | |
if(options.normalScrollElements){ | |
$document.on('mouseenter', options.normalScrollElements, function () { | |
FP.setMouseWheelScrolling(false); | |
}); | |
$document.on('mouseleave', options.normalScrollElements, function(){ | |
FP.setMouseWheelScrolling(true); | |
}); | |
} | |
} | |
/** | |
* Setting options from DOM elements if they are not provided. | |
*/ | |
function setOptionsFromDOM(){ | |
var sections = container.find(options.sectionSelector); | |
//no anchors option? Checking for them in the DOM attributes | |
if(!options.anchors.length){ | |
options.anchors = sections.filter('[data-anchor]').map(function(){ | |
return $(this).data('anchor').toString(); | |
}).get(); | |
} | |
//no tooltipos option? Checking for them in the DOM attributes | |
if(!options.navigationTooltips.length){ | |
options.navigationTooltips = sections.filter('[data-tooltip]').map(function(){ | |
return $(this).data('tooltip').toString(); | |
}).get(); | |
} | |
} | |
/** | |
* Works over the DOM structure to set it up for the current fullpage optionss. | |
*/ | |
function prepareDom(){ | |
container.css({ | |
'height': '100%', | |
'position': 'relative' | |
}); | |
//adding a class to recognize the container internally in the code | |
container.addClass(WRAPPER); | |
$('html').addClass(ENABLED); | |
//due to https://github.com/alvarotrigo/fullPage.js/issues/1502 | |
windowsHeight = $window.height(); | |
container.removeClass(DESTROYED); //in case it was destroyed before initilizing it again | |
addInternalSelectors(); | |
//styling the sections / slides / menu | |
$(SECTION_SEL).each(function(index){ | |
var section = $(this); | |
var slides = section.find(SLIDE_SEL); | |
var numSlides = slides.length; | |
styleSection(section, index); | |
styleMenu(section, index); | |
// if there's any slide | |
if (numSlides > 0) { | |
styleSlides(section, slides, numSlides); | |
}else{ | |
if(options.verticalCentered){ | |
addTableClass(section); | |
} | |
} | |
}); | |
//fixed elements need to be moved out of the plugin container due to problems with CSS3. | |
if(options.fixedElements && options.css3){ | |
$(options.fixedElements).appendTo($body); | |
} | |
//vertical centered of the navigation + active bullet | |
if(options.navigation){ | |
addVerticalNavigation(); | |
} | |
enableYoutubeAPI(); | |
enableVidemoAPI(); | |
if(options.scrollOverflow){ | |
if(document.readyState === 'complete'){ | |
createSlimScrollingHandler(); | |
} | |
//after DOM and images are loaded | |
$window.on('load', createSlimScrollingHandler); | |
}else{ | |
afterRenderActions(); | |
} | |
} | |
/** | |
* Styles the horizontal slides for a section. | |
*/ | |
function styleSlides(section, slides, numSlides){ | |
var sliderWidth = numSlides * 100; | |
var slideWidth = 100 / numSlides; | |
slides.wrapAll('<div class="' + SLIDES_CONTAINER + '" />'); | |
slides.parent().wrap('<div class="' + SLIDES_WRAPPER + '" />'); | |
section.find(SLIDES_CONTAINER_SEL).css('width', sliderWidth + '%'); | |
if(numSlides > 1){ | |
if(options.controlArrows){ | |
createSlideArrows(section); | |
} | |
if(options.slidesNavigation){ | |
addSlidesNavigation(section, numSlides); | |
} | |
} | |
slides.each(function(index) { | |
$(this).css('width', slideWidth + '%'); | |
if(options.verticalCentered){ | |
addTableClass($(this)); | |
} | |
}); | |
var startingSlide = section.find(SLIDE_ACTIVE_SEL); | |
//if the slide won't be an starting point, the default will be the first one | |
//the active section isn't the first one? Is not the first slide of the first section? Then we load that section/slide by default. | |
if( startingSlide.length && ($(SECTION_ACTIVE_SEL).index(SECTION_SEL) !== 0 || ($(SECTION_ACTIVE_SEL).index(SECTION_SEL) === 0 && startingSlide.index() !== 0))){ | |
silentLandscapeScroll(startingSlide); | |
}else{ | |
slides.eq(0).addClass(ACTIVE); | |
} | |
} | |
/** | |
* Styling vertical sections | |
*/ | |
function styleSection(section, index){ | |
//if no active section is defined, the 1st one will be the default one | |
if(!index && $(SECTION_ACTIVE_SEL).length === 0) { | |
section.addClass(ACTIVE); | |
} | |
section.css('height', windowsHeight + 'px'); | |
if(options.paddingTop){ | |
section.css('padding-top', options.paddingTop); | |
} | |
if(options.paddingBottom){ | |
section.css('padding-bottom', options.paddingBottom); | |
} | |
if (typeof options.sectionsColor[index] !== 'undefined') { | |
section.css('background-color', options.sectionsColor[index]); | |
} | |
if (typeof options.anchors[index] !== 'undefined') { | |
section.attr('data-anchor', options.anchors[index]); | |
} | |
} | |
/** | |
* Sets the data-anchor attributes to the menu elements and activates the current one. | |
*/ | |
function styleMenu(section, index){ | |
if (typeof options.anchors[index] !== 'undefined') { | |
//activating the menu / nav element on load | |
if(section.hasClass(ACTIVE)){ | |
activateMenuAndNav(options.anchors[index], index); | |
} | |
} | |
//moving the menu outside the main container if it is inside (avoid problems with fixed positions when using CSS3 tranforms) | |
if(options.menu && options.css3 && $(options.menu).closest(WRAPPER_SEL).length){ | |
$(options.menu).appendTo($body); | |
} | |
} | |
/** | |
* Adds internal classes to be able to provide customizable selectors | |
* keeping the link with the style sheet. | |
*/ | |
function addInternalSelectors(){ | |
//adding internal class names to void problem with common ones | |
$(options.sectionSelector).each(function(){ | |
$(this).addClass(SECTION); | |
}); | |
$(options.slideSelector).each(function(){ | |
$(this).addClass(SLIDE); | |
}); | |
} | |
/** | |
* Creates the control arrows for the given section | |
*/ | |
function createSlideArrows(section){ | |
section.find(SLIDES_WRAPPER_SEL).after('<div class="' + SLIDES_ARROW_PREV + '"></div><div class="' + SLIDES_ARROW_NEXT + '"></div>'); | |
if(options.controlArrowColor!='#fff'){ | |
section.find(SLIDES_ARROW_NEXT_SEL).css('border-color', 'transparent transparent transparent '+options.controlArrowColor); | |
section.find(SLIDES_ARROW_PREV_SEL).css('border-color', 'transparent '+ options.controlArrowColor + ' transparent transparent'); | |
} | |
if(!options.loopHorizontal){ | |
section.find(SLIDES_ARROW_PREV_SEL).hide(); | |
} | |
} | |
/** | |
* Creates a vertical navigation bar. | |
*/ | |
function addVerticalNavigation(){ | |
$body.append('<div id="' + SECTION_NAV + '"><ul></ul></div>'); | |
var nav = $(SECTION_NAV_SEL); | |
nav.addClass(function() { | |
return options.showActiveTooltip ? SHOW_ACTIVE_TOOLTIP + ' ' + options.navigationPosition : options.navigationPosition; | |
}); | |
for (var i = 0; i < $(SECTION_SEL).length; i++) { | |
var link = ''; | |
if (options.anchors.length) { | |
link = options.anchors[i]; | |
} | |
var li = '<li><a href="#' + link + '"><span></span></a>'; | |
// Only add tooltip if needed (defined by user) | |
var tooltip = options.navigationTooltips[i]; | |
if (typeof tooltip !== 'undefined' && tooltip !== '') { | |
li += '<div class="' + SECTION_NAV_TOOLTIP + ' ' + options.navigationPosition + '">' + tooltip + '</div>'; | |
} | |
li += '</li>'; | |
nav.find('ul').append(li); | |
} | |
//centering it vertically | |
$(SECTION_NAV_SEL).css('margin-top', '-' + ($(SECTION_NAV_SEL).height()/2) + 'px'); | |
//activating the current active section | |
$(SECTION_NAV_SEL).find('li').eq($(SECTION_ACTIVE_SEL).index(SECTION_SEL)).find('a').addClass(ACTIVE); | |
} | |
/** | |
* Creates the slim scroll scrollbar for the sections and slides inside them. | |
*/ | |
function createSlimScrollingHandler(){ | |
$(SECTION_SEL).each(function(){ | |
var slides = $(this).find(SLIDE_SEL); | |
if(slides.length){ | |
slides.each(function(){ | |
createSlimScrolling($(this)); | |
}); | |
}else{ | |
createSlimScrolling($(this)); | |
} | |
}); | |
afterRenderActions(); | |
} | |
/* | |
* Enables the Youtube videos API so we can control their flow if necessary. | |
*/ | |
function enableYoutubeAPI(){ | |
container.find('iframe[src*="youtube.com/embed/"]').each(function(){ | |
var sign = getUrlParamSign($(this).attr('src')); | |
$(this).attr('src', $(this).attr('src') + sign + 'enablejsapi=1'); | |
}); | |
} | |
/* | |
* Enables the Vimeo videos API so we can control their flow if necessary. | |
*/ | |
function enableVidemoAPI(){ | |
container.find('iframe[src*="player.vimeo.com/"]').each(function(){ | |
var sign = getUrlParamSign($(this).attr('src')); | |
$(this).attr('src', $(this).attr('src') + sign + 'api=1'); | |
}); | |
} | |
/* | |
* Returns the prefix sign to use for a new parameter in an existen URL. | |
* | |
* @return {String} ? | & | |
*/ | |
function getUrlParamSign(url){ | |
return ( !/\?/.test( url ) ) ? '?' : '&'; | |
} | |
/** | |
* Actions and callbacks to fire afterRender | |
*/ | |
function afterRenderActions(){ | |
var section = $(SECTION_ACTIVE_SEL); | |
section.addClass(COMPLETELY); | |
if(options.scrollOverflowHandler.afterRender){ | |
options.scrollOverflowHandler.afterRender(section); | |
} | |
lazyLoad(section); | |
playMedia(section); | |
$.isFunction( options.afterLoad ) && options.afterLoad.call(section, section.data('anchor'), (section.index(SECTION_SEL) + 1)); | |
$.isFunction( options.afterRender ) && options.afterRender.call(container); | |
} | |
var isScrolling = false; | |
var lastScroll = 0; | |
//when scrolling... | |
function scrollHandler(){ | |
var currentSection; | |
if(!options.autoScrolling || options.scrollBar){ | |
var currentScroll = $window.scrollTop(); | |
var scrollDirection = getScrollDirection(currentScroll); | |
var visibleSectionIndex = 0; | |
var screen_mid = currentScroll + ($window.height() / 2.0); | |
//taking the section which is showing more content in the viewport | |
var sections = document.querySelectorAll(SECTION_SEL); | |
for (var i = 0; i < sections.length; ++i) { | |
var section = sections[i]; | |
// Pick the the last section which passes the middle line of the screen. | |
if (section.offsetTop <= screen_mid) | |
{ | |
visibleSectionIndex = i; | |
} | |
} | |
if(isCompletelyInViewPort(scrollDirection)){ | |
if(!$(SECTION_ACTIVE_SEL).hasClass(COMPLETELY)){ | |
$(SECTION_ACTIVE_SEL).addClass(COMPLETELY).siblings().removeClass(COMPLETELY); | |
} | |
} | |
//geting the last one, the current one on the screen | |
currentSection = $(sections).eq(visibleSectionIndex); | |
//setting the visible section as active when manually scrolling | |
//executing only once the first time we reach the section | |
if(!currentSection.hasClass(ACTIVE)){ | |
isScrolling = true; | |
var leavingSection = $(SECTION_ACTIVE_SEL); | |
var leavingSectionIndex = leavingSection.index(SECTION_SEL) + 1; | |
var yMovement = getYmovement(currentSection); | |
var anchorLink = currentSection.data('anchor'); | |
var sectionIndex = currentSection.index(SECTION_SEL) + 1; | |
var activeSlide = currentSection.find(SLIDE_ACTIVE_SEL); | |
if(activeSlide.length){ | |
var slideAnchorLink = activeSlide.data('anchor'); | |
var slideIndex = activeSlide.index(); | |
} | |
if(canScroll){ | |
currentSection.addClass(ACTIVE).siblings().removeClass(ACTIVE); | |
$.isFunction( options.onLeave ) && options.onLeave.call( leavingSection, leavingSectionIndex, sectionIndex, yMovement); | |
$.isFunction( options.afterLoad ) && options.afterLoad.call( currentSection, anchorLink, sectionIndex); | |
lazyLoad(currentSection); | |
activateMenuAndNav(anchorLink, sectionIndex - 1); | |
if(options.anchors.length){ | |
//needed to enter in hashChange event when using the menu with anchor links | |
lastScrolledDestiny = anchorLink; | |
setState(slideIndex, slideAnchorLink, anchorLink, sectionIndex); | |
} | |
} | |
//small timeout in order to avoid entering in hashChange event when scrolling is not finished yet | |
clearTimeout(scrollId); | |
scrollId = setTimeout(function(){ | |
isScrolling = false; | |
}, 100); | |
} | |
if(options.fitToSection){ | |
//for the auto adjust of the viewport to fit a whole section | |
clearTimeout(scrollId2); | |
scrollId2 = setTimeout(function(){ | |
//checking fitToSection again in case it was set to false before the timeout delay | |
if(canScroll && options.fitToSection){ | |
//allows to scroll to an active section and | |
//if the section is already active, we prevent firing callbacks | |
if($(SECTION_ACTIVE_SEL).is(currentSection)){ | |
isResizing = true; | |
} | |
scrollPage($(SECTION_ACTIVE_SEL)); | |
isResizing = false; | |
} | |
}, options.fitToSectionDelay); | |
} | |
} | |
} | |
/** | |
* Determines whether the active section has seen in its whole or not. | |
*/ | |
function isCompletelyInViewPort(movement){ | |
var top = $(SECTION_ACTIVE_SEL).position().top; | |
var bottom = top + $window.height(); | |
if(movement == 'up'){ | |
return bottom >= ($window.scrollTop() + $window.height()); | |
} | |
return top <= $window.scrollTop(); | |
} | |
/** | |
* Gets the directon of the the scrolling fired by the scroll event. | |
*/ | |
function getScrollDirection(currentScroll){ | |
var direction = currentScroll > lastScroll ? 'down' : 'up'; | |
lastScroll = currentScroll; | |
return direction; | |
} | |
/** | |
* Determines the way of scrolling up or down: | |
* by 'automatically' scrolling a section or by using the default and normal scrolling. | |
*/ | |
function scrolling(type, scrollable){ | |
if (!isScrollAllowed.m[type]){ | |
return; | |
} | |
var check, scrollSection; | |
if(type == 'down'){ | |
check = 'bottom'; | |
scrollSection = FP.moveSectionDown; | |
}else{ | |
check = 'top'; | |
scrollSection = FP.moveSectionUp; | |
} | |
if(scrollable.length > 0 ){ | |
//is the scrollbar at the start/end of the scroll? | |
if(options.scrollOverflowHandler.isScrolled(check, scrollable)){ | |
scrollSection(); | |
}else{ | |
return true; | |
} | |
}else{ | |
// moved up/down | |
scrollSection(); | |
} | |
} | |
var touchStartY = 0; | |
var touchStartX = 0; | |
var touchEndY = 0; | |
var touchEndX = 0; | |
/* Detecting touch events | |
* As we are changing the top property of the page on scrolling, we can not use the traditional way to detect it. | |
* This way, the touchstart and the touch moves shows an small difference between them which is the | |
* used one to determine the direction. | |
*/ | |
function touchMoveHandler(event){ | |
var e = event.originalEvent; | |
// additional: if one of the normalScrollElements isn't within options.normalScrollElementTouchThreshold hops up the DOM chain | |
if (!checkParentForNormalScrollElement(event.target) && isReallyTouch(e) ) { | |
if(options.autoScrolling){ | |
//preventing the easing on iOS devices | |
event.preventDefault(); | |
} | |
var activeSection = $(SECTION_ACTIVE_SEL); | |
var scrollable = options.scrollOverflowHandler.scrollable(activeSection); | |
if (canScroll && !slideMoving) { //if theres any # | |
var touchEvents = getEventsPage(e); | |
touchEndY = touchEvents.y; | |
touchEndX = touchEvents.x; | |
//if movement in the X axys is greater than in the Y and the currect section has slides... | |
if (activeSection.find(SLIDES_WRAPPER_SEL).length && Math.abs(touchStartX - touchEndX) > (Math.abs(touchStartY - touchEndY))) { | |
//is the movement greater than the minimum resistance to scroll? | |
if (Math.abs(touchStartX - touchEndX) > ($window.outerWidth() / 100 * options.touchSensitivity)) { | |
if (touchStartX > touchEndX) { | |
if(isScrollAllowed.m.right){ | |
FP.moveSlideRight(); //next | |
} | |
} else { | |
if(isScrollAllowed.m.left){ | |
FP.moveSlideLeft(); //prev | |
} | |
} | |
} | |
} | |
//vertical scrolling (only when autoScrolling is enabled) | |
else if(options.autoScrolling){ | |
//is the movement greater than the minimum resistance to scroll? | |
if (Math.abs(touchStartY - touchEndY) > ($window.height() / 100 * options.touchSensitivity)) { | |
if (touchStartY > touchEndY) { | |
scrolling('down', scrollable); | |
} else if (touchEndY > touchStartY) { | |
scrolling('up', scrollable); | |
} | |
} | |
} | |
} | |
} | |
} | |
/** | |
* recursive function to loop up the parent nodes to check if one of them exists in options.normalScrollElements | |
* Currently works well for iOS - Android might need some testing | |
* @param {Element} el target element / jquery selector (in subsequent nodes) | |
* @param {int} hop current hop compared to options.normalScrollElementTouchThreshold | |
* @return {boolean} true if there is a match to options.normalScrollElements | |
*/ | |
function checkParentForNormalScrollElement (el, hop) { | |
hop = hop || 0; | |
var parent = $(el).parent(); | |
if (hop < options.normalScrollElementTouchThreshold && | |
parent.is(options.normalScrollElements) ) { | |
return true; | |
} else if (hop == options.normalScrollElementTouchThreshold) { | |
return false; | |
} else { | |
return checkParentForNormalScrollElement(parent, ++hop); | |
} | |
} | |
/** | |
* As IE >= 10 fires both touch and mouse events when using a mouse in a touchscreen | |
* this way we make sure that is really a touch event what IE is detecting. | |
*/ | |
function isReallyTouch(e){ | |
//if is not IE || IE is detecting `touch` or `pen` | |
return typeof e.pointerType === 'undefined' || e.pointerType != 'mouse'; | |
} | |
/** | |
* Handler for the touch start event. | |
*/ | |
function touchStartHandler(event){ | |
var e = event.originalEvent; | |
//stopping the auto scroll to adjust to a section | |
if(options.fitToSection){ | |
$htmlBody.stop(); | |
} | |
if(isReallyTouch(e)){ | |
var touchEvents = getEventsPage(e); | |
touchStartY = touchEvents.y; | |
touchStartX = touchEvents.x; | |
} | |
} | |
/** | |
* Gets the average of the last `number` elements of the given array. | |
*/ | |
function getAverage(elements, number){ | |
var sum = 0; | |
//taking `number` elements from the end to make the average, if there are not enought, 1 | |
var lastElements = elements.slice(Math.max(elements.length - number, 1)); | |
for(var i = 0; i < lastElements.length; i++){ | |
sum = sum + lastElements[i]; | |
} | |
return Math.ceil(sum/number); | |
} | |
/** | |
* Detecting mousewheel scrolling | |
* | |
* http://blogs.sitepointstatic.com/examples/tech/mouse-wheel/index.html | |
* http://www.sitepoint.com/html5-javascript-mouse-wheel/ | |
*/ | |
var prevTime = new Date().getTime(); | |
function MouseWheelHandler(e) { | |
var curTime = new Date().getTime(); | |
var isNormalScroll = $(COMPLETELY_SEL).hasClass(NORMAL_SCROLL); | |
//autoscrolling and not zooming? | |
if(options.autoScrolling && !controlPressed && !isNormalScroll){ | |
// cross-browser wheel delta | |
e = e || window.event; | |
var value = e.wheelDelta || -e.deltaY || -e.detail; | |
var delta = Math.max(-1, Math.min(1, value)); | |
var horizontalDetection = typeof e.wheelDeltaX !== 'undefined' || typeof e.deltaX !== 'undefined'; | |
var isScrollingVertically = (Math.abs(e.wheelDeltaX) < Math.abs(e.wheelDelta)) || (Math.abs(e.deltaX ) < Math.abs(e.deltaY) || !horizontalDetection); | |
//Limiting the array to 150 (lets not waste memory!) | |
if(scrollings.length > 149){ | |
scrollings.shift(); | |
} | |
//keeping record of the previous scrollings | |
scrollings.push(Math.abs(value)); | |
//preventing to scroll the site on mouse wheel when scrollbar is present | |
if(options.scrollBar){ | |
e.preventDefault ? e.preventDefault() : e.returnValue = false; | |
} | |
var activeSection = $(SECTION_ACTIVE_SEL); | |
var scrollable = options.scrollOverflowHandler.scrollable(activeSection); | |
//time difference between the last scroll and the current one | |
var timeDiff = curTime-prevTime; | |
prevTime = curTime; | |
//haven't they scrolled in a while? | |
//(enough to be consider a different scrolling action to scroll another section) | |
if(timeDiff > 200){ | |
//emptying the array, we dont care about old scrollings for our averages | |
scrollings = []; | |
} | |
if(canScroll){ | |
var averageEnd = getAverage(scrollings, 10); | |
var averageMiddle = getAverage(scrollings, 70); | |
var isAccelerating = averageEnd >= averageMiddle; | |
//to avoid double swipes... | |
if(isAccelerating && isScrollingVertically){ | |
//scrolling down? | |
if (delta < 0) { | |
scrolling('down', scrollable); | |
//scrolling up? | |
}else { | |
scrolling('up', scrollable); | |
} | |
} | |
} | |
return false; | |
} | |
if(options.fitToSection){ | |
//stopping the auto scroll to adjust to a section | |
$htmlBody.stop(); | |
} | |
} | |
/** | |
* Slides a slider to the given direction. | |
* Optional `section` param. | |
*/ | |
function moveSlide(direction, section){ | |
var activeSection = typeof section === 'undefined' ? $(SECTION_ACTIVE_SEL) : section; | |
var slides = activeSection.find(SLIDES_WRAPPER_SEL); | |
var numSlides = slides.find(SLIDE_SEL).length; | |
// more than one slide needed and nothing should be sliding | |
if (!slides.length || slideMoving || numSlides < 2) { | |
return; | |
} | |
var currentSlide = slides.find(SLIDE_ACTIVE_SEL); | |
var destiny = null; | |
if(direction === 'prev'){ | |
destiny = currentSlide.prev(SLIDE_SEL); | |
}else{ | |
destiny = currentSlide.next(SLIDE_SEL); | |
} | |
//isn't there a next slide in the secuence? | |
if(!destiny.length){ | |
//respect loopHorizontal settin | |
if (!options.loopHorizontal) return; | |
if(direction === 'prev'){ | |
destiny = currentSlide.siblings(':last'); | |
}else{ | |
destiny = currentSlide.siblings(':first'); | |
} | |
} | |
slideMoving = true; | |
landscapeScroll(slides, destiny); | |
} | |
/** | |
* Maintains the active slides in the viewport | |
* (Because he `scroll` animation might get lost with some actions, such as when using continuousVertical) | |
*/ | |
function keepSlidesPosition(){ | |
$(SLIDE_ACTIVE_SEL).each(function(){ | |
silentLandscapeScroll($(this), 'internal'); | |
}); | |
} | |
var previousDestTop = 0; | |
/** | |
* Returns the destination Y position based on the scrolling direction and | |
* the height of the section. | |
*/ | |
function getDestinationPosition(element){ | |
var elemPosition = element.position(); | |
//top of the desination will be at the top of the viewport | |
var position = elemPosition.top; | |
var isScrollingDown = elemPosition.top > previousDestTop; | |
var sectionBottom = position - windowsHeight + element.outerHeight(); | |
//is the destination element bigger than the viewport? | |
if(element.outerHeight() > windowsHeight){ | |
//scrolling up? | |
if(!isScrollingDown && options.scrollSectionToBottomFromBottom){ | |
position = sectionBottom; | |
} | |
} | |
//sections equal or smaller than the viewport height && scrolling down? || is resizing and its in the last section | |
else if(isScrollingDown || (isResizing && element.is(':last-child')) && options.scrollSectionToBottomFromBottom){ | |
//The bottom of the destination will be at the bottom of the viewport | |
position = sectionBottom; | |
} | |
/* | |
Keeping record of the last scrolled position to determine the scrolling direction. | |
No conventional methods can be used as the scroll bar might not be present | |
AND the section might not be active if it is auto-height and didnt reach the middle | |
of the viewport. | |
*/ | |
previousDestTop = position; | |
return position; | |
} | |
/** | |
* Scrolls the site to the given element and scrolls to the slide if a callback is given. | |
*/ | |
function scrollPage(element, callback, isMovementUp){ | |
if(typeof element === 'undefined'){ return; } //there's no element to scroll, leaving the function | |
var dtop = getDestinationPosition(element); | |
//local variables | |
var v = { | |
element: element, | |
callback: callback, | |
isMovementUp: isMovementUp, | |
dtop: dtop, | |
yMovement: getYmovement(element), | |
anchorLink: element.data('anchor'), | |
sectionIndex: element.index(SECTION_SEL), | |
activeSlide: element.find(SLIDE_ACTIVE_SEL), | |
activeSection: $(SECTION_ACTIVE_SEL), | |
leavingSection: $(SECTION_ACTIVE_SEL).index(SECTION_SEL) + 1, | |
//caching the value of isResizing at the momment the function is called | |
//because it will be checked later inside a setTimeout and the value might change | |
localIsResizing: isResizing | |
}; | |
//quiting when destination scroll is the same as the current one | |
if((v.activeSection.is(element) && !isResizing) || (options.scrollBar && $window.scrollTop() === v.dtop && !element.hasClass(AUTO_HEIGHT) )){ return; } | |
if(v.activeSlide.length){ | |
var slideAnchorLink = v.activeSlide.data('anchor'); | |
var slideIndex = v.activeSlide.index(); | |
} | |
// If continuousVertical && we need to wrap around | |
if (options.autoScrolling && options.continuousVertical && typeof (v.isMovementUp) !== "undefined" && | |
((!v.isMovementUp && v.yMovement == 'up') || // Intending to scroll down but about to go up or | |
(v.isMovementUp && v.yMovement == 'down'))) { // intending to scroll up but about to go down | |
v = createInfiniteSections(v); | |
} | |
//callback (onLeave) if the site is not just resizing and readjusting the slides | |
if($.isFunction(options.onLeave) && !v.localIsResizing){ | |
if(options.onLeave.call(v.activeSection, v.leavingSection, (v.sectionIndex + 1), v.yMovement) === false){ | |
return; | |
} | |
} | |
stopMedia(v.activeSection); | |
element.addClass(ACTIVE).siblings().removeClass(ACTIVE); | |
lazyLoad(element); | |
options.scrollOverflowHandler.onLeave(); | |
//preventing from activating the MouseWheelHandler event | |
//more than once if the page is scrolling | |
canScroll = false; | |
setState(slideIndex, slideAnchorLink, v.anchorLink, v.sectionIndex); | |
performMovement(v); | |
//flag to avoid callingn `scrollPage()` twice in case of using anchor links | |
lastScrolledDestiny = v.anchorLink; | |
//avoid firing it twice (as it does also on scroll) | |
activateMenuAndNav(v.anchorLink, v.sectionIndex); | |
} | |
/** | |
* Performs the movement (by CSS3 or by jQuery) | |
*/ | |
function performMovement(v){ | |
// using CSS3 translate functionality | |
if (options.css3 && options.autoScrolling && !options.scrollBar) { | |
var translate3d = 'translate3d(0px, -' + v.dtop + 'px, 0px)'; | |
transformContainer(translate3d, true); | |
//even when the scrollingSpeed is 0 there's a little delay, which might cause the | |
//scrollingSpeed to change in case of using silentMoveTo(); | |
if(options.scrollingSpeed){ | |
afterSectionLoadsId = setTimeout(function () { | |
afterSectionLoads(v); | |
}, options.scrollingSpeed); | |
}else{ | |
afterSectionLoads(v); | |
} | |
} | |
// using jQuery animate | |
else{ | |
var scrollSettings = getScrollSettings(v); | |
$(scrollSettings.element).animate( | |
scrollSettings.options, | |
options.scrollingSpeed, options.easing).promise().done(function () { //only one single callback in case of animating `html, body` | |
if(options.scrollBar){ | |
/* Hack! | |
The timeout prevents setting the most dominant section in the viewport as "active" when the user | |
scrolled to a smaller section by using the mousewheel (auto scrolling) rather than draging the scroll bar. | |
When using scrollBar:true It seems like the scroll events still getting propagated even after the scrolling animation has finished. | |
*/ | |
setTimeout(function(){ | |
afterSectionLoads(v); | |
},30); | |
}else{ | |
afterSectionLoads(v); | |
} | |
}); | |
} | |
} | |
/** | |
* Gets the scrolling settings depending on the plugin autoScrolling option | |
*/ | |
function getScrollSettings(v){ | |
var scroll = {}; | |
if(options.autoScrolling && !options.scrollBar){ | |
scroll.options = { 'top': -v.dtop}; | |
scroll.element = WRAPPER_SEL; | |
}else{ | |
scroll.options = { 'scrollTop': v.dtop}; | |
scroll.element = 'html, body'; | |
} | |
return scroll; | |
} | |
/** | |
* Adds sections before or after the current one to create the infinite effect. | |
*/ | |
function createInfiniteSections(v){ | |
// Scrolling down | |
if (!v.isMovementUp) { | |
// Move all previous sections to after the active section | |
$(SECTION_ACTIVE_SEL).after(v.activeSection.prevAll(SECTION_SEL).get().reverse()); | |
} | |
else { // Scrolling up | |
// Move all next sections to before the active section | |
$(SECTION_ACTIVE_SEL).before(v.activeSection.nextAll(SECTION_SEL)); | |
} | |
// Maintain the displayed position (now that we changed the element order) | |
silentScroll($(SECTION_ACTIVE_SEL).position().top); | |
// Maintain the active slides visible in the viewport | |
keepSlidesPosition(); | |
// save for later the elements that still need to be reordered | |
v.wrapAroundElements = v.activeSection; | |
// Recalculate animation variables | |
v.dtop = v.element.position().top; | |
v.yMovement = getYmovement(v.element); | |
return v; | |
} | |
/** | |
* Fix section order after continuousVertical changes have been animated | |
*/ | |
function continuousVerticalFixSectionOrder (v) { | |
// If continuousVertical is in effect (and autoScrolling would also be in effect then), | |
// finish moving the elements around so the direct navigation will function more simply | |
if (!v.wrapAroundElements || !v.wrapAroundElements.length) { | |
return; | |
} | |
if (v.isMovementUp) { | |
$(SECTION_FIRST_SEL).before(v.wrapAroundElements); | |
} | |
else { | |
$(SECTION_LAST_SEL).after(v.wrapAroundElements); | |
} | |
silentScroll($(SECTION_ACTIVE_SEL).position().top); | |
// Maintain the active slides visible in the viewport | |
keepSlidesPosition(); | |
} | |
/** | |
* Actions to do once the section is loaded. | |
*/ | |
function afterSectionLoads (v){ | |
continuousVerticalFixSectionOrder(v); | |
v.element.find('.fp-scrollable').mouseover(); | |
//callback (afterLoad) if the site is not just resizing and readjusting the slides | |
$.isFunction(options.afterLoad) && !v.localIsResizing && options.afterLoad.call(v.element, v.anchorLink, (v.sectionIndex + 1)); | |
options.scrollOverflowHandler.afterLoad(); | |
playMedia(v.element); | |
v.element.addClass(COMPLETELY).siblings().removeClass(COMPLETELY); | |
canScroll = true; | |
$.isFunction(v.callback) && v.callback.call(this); | |
} | |
/** | |
* Lazy loads image, video and audio elements. | |
*/ | |
function lazyLoad(destiny){ | |
var destiny = getSlideOrSection(destiny); | |
destiny.find('img[data-src], source[data-src], audio[data-src], iframe[data-src]').each(function(){ | |
$(this).attr('src', $(this).data('src')); | |
$(this).removeAttr('data-src'); | |
if($(this).is('source')){ | |
$(this).closest('video').get(0).load(); | |
} | |
}); | |
} | |
/** | |
* Plays video and audio elements. | |
*/ | |
function playMedia(destiny){ | |
var destiny = getSlideOrSection(destiny); | |
//playing HTML5 media elements | |
destiny.find('video, audio').each(function(){ | |
var element = $(this).get(0); | |
if( element.hasAttribute('data-autoplay') && typeof element.play === 'function' ) { | |
element.play(); | |
} | |
}); | |
//youtube videos | |
destiny.find('iframe[src*="youtube.com/embed/"]').each(function(){ | |
var element = $(this).get(0); | |
if( /youtube\.com\/embed\//.test($(this).attr('src')) && element.hasAttribute('data-autoplay')){ | |
element.contentWindow.postMessage('{"event":"command","func":"playVideo","args":""}', '*'); | |
} | |
}); | |
} | |
/** | |
* Stops video and audio elements. | |
*/ | |
function stopMedia(destiny){ | |
var destiny = getSlideOrSection(destiny); | |
//stopping HTML5 media elements | |
destiny.find('video, audio').each(function(){ | |
var element = $(this).get(0); | |
if( !element.hasAttribute('data-keepplaying') && typeof element.pause === 'function' ) { | |
element.pause(); | |
} | |
}); | |
//youtube videos | |
destiny.find('iframe[src*="youtube.com/embed/"]').each(function(){ | |
var element = $(this).get(0); | |
if( /youtube\.com\/embed\//.test($(this).attr('src')) && !element.hasAttribute('data-keepplaying')){ | |
$(this).get(0).contentWindow.postMessage('{"event":"command","func":"pauseVideo","args":""}','*'); | |
} | |
}); | |
} | |
/** | |
* Gets the active slide (or section) for the given section | |
*/ | |
function getSlideOrSection(destiny){ | |
var slide = destiny.find(SLIDE_ACTIVE_SEL); | |
if( slide.length ) { | |
destiny = $(slide); | |
} | |
return destiny; | |
} | |
/** | |
* Scrolls to the anchor in the URL when loading the site | |
*/ | |
function scrollToAnchor(){ | |
//getting the anchor link in the URL and deleting the `#` | |
var value = window.location.hash.replace('#', '').split('/'); | |
var section = decodeURIComponent(value[0]); | |
var slide = decodeURIComponent(value[1]); | |
if(section){ //if theres any # | |
if(options.animateAnchor){ | |
scrollPageAndSlide(section, slide); | |
}else{ | |
FP.silentMoveTo(section, slide); | |
} | |
} | |
} | |
/** | |
* Detecting any change on the URL to scroll to the given anchor link | |
* (a way to detect back history button as we play with the hashes on the URL) | |
*/ | |
function hashChangeHandler(){ | |
if(!isScrolling && !options.lockAnchors){ | |
var value = window.location.hash.replace('#', '').split('/'); | |
var section = decodeURIComponent(value[0]); | |
var slide = decodeURIComponent(value[1]); | |
//when moving to a slide in the first section for the first time (first time to add an anchor to the URL) | |
var isFirstSlideMove = (typeof lastScrolledDestiny === 'undefined'); | |
var isFirstScrollMove = (typeof lastScrolledDestiny === 'undefined' && typeof slide === 'undefined' && !slideMoving); | |
if(section.length){ | |
/*in order to call scrollpage() only once for each destination at a time | |
It is called twice for each scroll otherwise, as in case of using anchorlinks `hashChange` | |
event is fired on every scroll too.*/ | |
if ((section && section !== lastScrolledDestiny) && !isFirstSlideMove || isFirstScrollMove || (!slideMoving && lastScrolledSlide != slide )) { | |
scrollPageAndSlide(section, slide); | |
} | |
} | |
} | |
} | |
//Sliding with arrow keys, both, vertical and horizontal | |
function keydownHandler(e) { | |
clearTimeout(keydownId); | |
var activeElement = $(':focus'); | |
if(!activeElement.is('textarea') && !activeElement.is('input') && !activeElement.is('select') && | |
activeElement.attr('contentEditable') !== "true" && activeElement.attr('contentEditable') !== '' && | |
options.keyboardScrolling && options.autoScrolling){ | |
var keyCode = e.which; | |
//preventing the scroll with arrow keys & spacebar & Page Up & Down keys | |
var keyControls = [40, 38, 32, 33, 34]; | |
if($.inArray(keyCode, keyControls) > -1){ | |
e.preventDefault(); | |
} | |
controlPressed = e.ctrlKey; | |
keydownId = setTimeout(function(){ | |
onkeydown(e); | |
},150); | |
} | |
} | |
function tooltipTextHandler(){ | |
$(this).prev().trigger('click'); | |
} | |
//to prevent scrolling while zooming | |
function keyUpHandler(e){ | |
if(isWindowFocused){ //the keyup gets fired on new tab ctrl + t in Firefox | |
controlPressed = e.ctrlKey; | |
} | |
} | |
//binding the mousemove when the mouse's middle button is released | |
function mouseDownHandler(e){ | |
//middle button | |
if (e.which == 2){ | |
oldPageY = e.pageY; | |
container.on('mousemove', mouseMoveHandler); | |
} | |
} | |
//unbinding the mousemove when the mouse's middle button is released | |
function mouseUpHandler(e){ | |
//middle button | |
if (e.which == 2){ | |
container.off('mousemove'); | |
} | |
} | |
//Scrolling horizontally when clicking on the slider controls. | |
function slideArrowHandler(){ | |
var section = $(this).closest(SECTION_SEL); | |
if ($(this).hasClass(SLIDES_PREV)) { | |
if(isScrollAllowed.m.left){ | |
FP.moveSlideLeft(section); | |
} | |
} else { | |
if(isScrollAllowed.m.right){ | |
FP.moveSlideRight(section); | |
} | |
} | |
} | |
//when opening a new tab (ctrl + t), `control` won't be pressed when comming back. | |
function blurHandler(){ | |
isWindowFocused = false; | |
controlPressed = false; | |
} | |
//Scrolls to the section when clicking the navigation bullet | |
function sectionBulletHandler(e){ | |
e.preventDefault(); | |
var index = $(this).parent().index(); | |
scrollPage($(SECTION_SEL).eq(index)); | |
} | |
//Scrolls the slider to the given slide destination for the given section | |
function slideBulletHandler(e){ | |
e.preventDefault(); | |
var slides = $(this).closest(SECTION_SEL).find(SLIDES_WRAPPER_SEL); | |
var destiny = slides.find(SLIDE_SEL).eq($(this).closest('li').index()); | |
landscapeScroll(slides, destiny); | |
} | |
/** | |
* Keydown event | |
*/ | |
function onkeydown(e){ | |
var shiftPressed = e.shiftKey; | |
switch (e.which) { | |
//up | |
case 38: | |
case 33: | |
if(isScrollAllowed.k.up){ | |
FP.moveSectionUp(); | |
} | |
break; | |
//down | |
case 32: //spacebar | |
if(shiftPressed && isScrollAllowed.k.up){ | |
FP.moveSectionUp(); | |
break; | |
} | |
case 40: | |
case 34: | |
if(isScrollAllowed.k.down){ | |
FP.moveSectionDown(); | |
} | |
break; | |
//Home | |
case 36: | |
if(isScrollAllowed.k.up){ | |
FP.moveTo(1); | |
} | |
break; | |
//End | |
case 35: | |
if(isScrollAllowed.k.down){ | |
FP.moveTo( $(SECTION_SEL).length ); | |
} | |
break; | |
//left | |
case 37: | |
if(isScrollAllowed.k.left){ | |
FP.moveSlideLeft(); | |
} | |
break; | |
//right | |
case 39: | |
if(isScrollAllowed.k.right){ | |
FP.moveSlideRight(); | |
} | |
break; | |
default: | |
return; // exit this handler for other keys | |
} | |
} | |
/** | |
* Detecting the direction of the mouse movement. | |
* Used only for the middle button of the mouse. | |
*/ | |
var oldPageY = 0; | |
function mouseMoveHandler(e){ | |
if(canScroll){ | |
// moving up | |
if (e.pageY < oldPageY && isScrollAllowed.m.up){ | |
FP.moveSectionUp(); | |
} | |
// moving down | |
else if(e.pageY > oldPageY && isScrollAllowed.m.down){ | |
FP.moveSectionDown(); | |
} | |
} | |
oldPageY = e.pageY; | |
} | |
/** | |
* Scrolls horizontal sliders. | |
*/ | |
function landscapeScroll(slides, destiny){ | |
var destinyPos = destiny.position(); | |
var slideIndex = destiny.index(); | |
var section = slides.closest(SECTION_SEL); | |
var sectionIndex = section.index(SECTION_SEL); | |
var anchorLink = section.data('anchor'); | |
var slidesNav = section.find(SLIDES_NAV_SEL); | |
var slideAnchor = getAnchor(destiny); | |
var prevSlide = section.find(SLIDE_ACTIVE_SEL); | |
//caching the value of isResizing at the momment the function is called | |
//because it will be checked later inside a setTimeout and the value might change | |
var localIsResizing = isResizing; | |
if(options.onSlideLeave){ | |
var prevSlideIndex = prevSlide.index(); | |
var xMovement = getXmovement(prevSlideIndex, slideIndex); | |
//if the site is not just resizing and readjusting the slides | |
if(!localIsResizing && xMovement!=='none'){ | |
if($.isFunction( options.onSlideLeave )){ | |
if(options.onSlideLeave.call( prevSlide, anchorLink, (sectionIndex + 1), prevSlideIndex, xMovement, slideIndex ) === false){ | |
slideMoving = false; | |
return; | |
} | |
} | |
} | |
} | |
stopMedia(prevSlide); | |
destiny.addClass(ACTIVE).siblings().removeClass(ACTIVE); | |
if(!localIsResizing){ | |
lazyLoad(destiny); | |
} | |
if(!options.loopHorizontal && options.controlArrows){ | |
//hidding it for the fist slide, showing for the rest | |
section.find(SLIDES_ARROW_PREV_SEL).toggle(slideIndex!==0); | |
//hidding it for the last slide, showing for the rest | |
section.find(SLIDES_ARROW_NEXT_SEL).toggle(!destiny.is(':last-child')); | |
} | |
//only changing the URL if the slides are in the current section (not for resize re-adjusting) | |
if(section.hasClass(ACTIVE)){ | |
setState(slideIndex, slideAnchor, anchorLink, sectionIndex); | |
} | |
var afterSlideLoads = function(){ | |
//if the site is not just resizing and readjusting the slides | |
if(!localIsResizing){ | |
$.isFunction( options.afterSlideLoad ) && options.afterSlideLoad.call( destiny, anchorLink, (sectionIndex + 1), slideAnchor, slideIndex); | |
} | |
playMedia(destiny); | |
//letting them slide again | |
slideMoving = false; | |
}; | |
if(options.css3){ | |
var translate3d = 'translate3d(-' + Math.round(destinyPos.left) + 'px, 0px, 0px)'; | |
addAnimation(slides.find(SLIDES_CONTAINER_SEL), options.scrollingSpeed>0).css(getTransforms(translate3d)); | |
afterSlideLoadsId = setTimeout(function(){ | |
afterSlideLoads(); | |
}, options.scrollingSpeed, options.easing); | |
}else{ | |
slides.animate({ | |
scrollLeft : Math.round(destinyPos.left) | |
}, options.scrollingSpeed, options.easing, function() { | |
afterSlideLoads(); | |
}); | |
} | |
slidesNav.find(ACTIVE_SEL).removeClass(ACTIVE); | |
slidesNav.find('li').eq(slideIndex).find('a').addClass(ACTIVE); | |
} | |
var previousHeight = windowsHeight; | |
//when resizing the site, we adjust the heights of the sections, slimScroll... | |
function resizeHandler(){ | |
//checking if it needs to get responsive | |
responsive(); | |
// rebuild immediately on touch devices | |
if (isTouchDevice) { | |
var activeElement = $(document.activeElement); | |
//if the keyboard is NOT visible | |
if (!activeElement.is('textarea') && !activeElement.is('input') && !activeElement.is('select')) { | |
var currentHeight = $window.height(); | |
//making sure the change in the viewport size is enough to force a rebuild. (20 % of the window to avoid problems when hidding scroll bars) | |
if( Math.abs(currentHeight - previousHeight) > (20 * Math.max(previousHeight, currentHeight) / 100) ){ | |
FP.reBuild(true); | |
previousHeight = currentHeight; | |
} | |
} | |
}else{ | |
//in order to call the functions only when the resize is finished | |
//http://stackoverflow.com/questions/4298612/jquery-how-to-call-resize-event-only-once-its-finished-resizing | |
clearTimeout(resizeId); | |
resizeId = setTimeout(function(){ | |
FP.reBuild(true); | |
}, 350); | |
} | |
} | |
/** | |
* Checks if the site needs to get responsive and disables autoScrolling if so. | |
* A class `fp-responsive` is added to the plugin's container in case the user wants to use it for his own responsive CSS. | |
*/ | |
function responsive(){ | |
var widthLimit = options.responsive || options.responsiveWidth; //backwards compatiblity | |
var heightLimit = options.responsiveHeight; | |
//only calculating what we need. Remember its called on the resize event. | |
var isBreakingPointWidth = widthLimit && $window.outerWidth() < widthLimit; | |
var isBreakingPointHeight = heightLimit && $window.height() < heightLimit; | |
if(widthLimit && heightLimit){ | |
FP.setResponsive(isBreakingPointWidth || isBreakingPointHeight); | |
} | |
else if(widthLimit){ | |
FP.setResponsive(isBreakingPointWidth); | |
} | |
else if(heightLimit){ | |
FP.setResponsive(isBreakingPointHeight); | |
} | |
} | |
/** | |
* Adds transition animations for the given element | |
*/ | |
function addAnimation(element){ | |
var transition = 'all ' + options.scrollingSpeed + 'ms ' + options.easingcss3; | |
element.removeClass(NO_TRANSITION); | |
return element.css({ | |
'-webkit-transition': transition, | |
'transition': transition | |
}); | |
} | |
/** | |
* Remove transition animations for the given element | |
*/ | |
function removeAnimation(element){ | |
return element.addClass(NO_TRANSITION); | |
} | |
/** | |
* Activating the website navigation dots according to the given slide name. | |
*/ | |
function activateNavDots(name, sectionIndex){ | |
if(options.navigation){ | |
$(SECTION_NAV_SEL).find(ACTIVE_SEL).removeClass(ACTIVE); | |
if(name){ | |
$(SECTION_NAV_SEL).find('a[href="#' + name + '"]').addClass(ACTIVE); | |
}else{ | |
$(SECTION_NAV_SEL).find('li').eq(sectionIndex).find('a').addClass(ACTIVE); | |
} | |
} | |
} | |
/** | |
* Activating the website main menu elements according to the given slide name. | |
*/ | |
function activateMenuElement(name){ | |
if(options.menu){ | |
$(options.menu).find(ACTIVE_SEL).removeClass(ACTIVE); | |
$(options.menu).find('[data-menuanchor="'+name+'"]').addClass(ACTIVE); | |
} | |
} | |
/** | |
* Sets to active the current menu and vertical nav items. | |
*/ | |
function activateMenuAndNav(anchor, index){ | |
activateMenuElement(anchor); | |
activateNavDots(anchor, index); | |
} | |
/** | |
* Retuns `up` or `down` depending on the scrolling movement to reach its destination | |
* from the current section. | |
*/ | |
function getYmovement(destiny){ | |
var fromIndex = $(SECTION_ACTIVE_SEL).index(SECTION_SEL); | |
var toIndex = destiny.index(SECTION_SEL); | |
if( fromIndex == toIndex){ | |
return 'none'; | |
} | |
if(fromIndex > toIndex){ | |
return 'up'; | |
} | |
return 'down'; | |
} | |
/** | |
* Retuns `right` or `left` depending on the scrolling movement to reach its destination | |
* from the current slide. | |
*/ | |
function getXmovement(fromIndex, toIndex){ | |
if( fromIndex == toIndex){ | |
return 'none'; | |
} | |
if(fromIndex > toIndex){ | |
return 'left'; | |
} | |
return 'right'; | |
} | |
/** | |
* Checks if the element needs scrollbar and if the user wants to apply it. | |
* If so it creates it. | |
* | |
* @param {Object} element jQuery object of the section or slide | |
*/ | |
function createSlimScrolling(element){ | |
//User doesn't want scrollbar here? Sayonara baby! | |
if(element.hasClass('fp-noscroll')) return; | |
//needed to make `scrollHeight` work under Opera 12 | |
element.css('overflow', 'hidden'); | |
var scrollOverflowHandler = options.scrollOverflowHandler; | |
var wrap = scrollOverflowHandler.wrapContent(); | |
//in case element is a slide | |
var section = element.closest(SECTION_SEL); | |
var scrollable = scrollOverflowHandler.scrollable(element); | |
var contentHeight; | |
//if there was scroll, the contentHeight will be the one in the scrollable section | |
if(scrollable.length){ | |
contentHeight = scrollOverflowHandler.scrollHeight(element); | |
}else{ | |
contentHeight = element.get(0).scrollHeight; | |
if(options.verticalCentered){ | |
contentHeight = element.find(TABLE_CELL_SEL).get(0).scrollHeight; | |
} | |
} | |
var scrollHeight = windowsHeight - parseInt(section.css('padding-bottom')) - parseInt(section.css('padding-top')); | |
//needs scroll? | |
if ( contentHeight > scrollHeight) { | |
//was there already an scroll ? Updating it | |
if(scrollable.length){ | |
scrollOverflowHandler.update(element, scrollHeight); | |
} | |
//creating the scrolling | |
else{ | |
if(options.verticalCentered){ | |
element.find(TABLE_CELL_SEL).wrapInner(wrap); | |
}else{ | |
element.wrapInner(wrap); | |
} | |
scrollOverflowHandler.create(element, scrollHeight); | |
} | |
} | |
//removing the scrolling when it is not necessary anymore | |
else{ | |
scrollOverflowHandler.remove(element); | |
} | |
//undo | |
element.css('overflow', ''); | |
} | |
function addTableClass(element){ | |
element.addClass(TABLE).wrapInner('<div class="' + TABLE_CELL + '" style="height:' + getTableHeight(element) + 'px;" />'); | |
} | |
function getTableHeight(element){ | |
var sectionHeight = windowsHeight; | |
if(options.paddingTop || options.paddingBottom){ | |
var section = element; | |
if(!section.hasClass(SECTION)){ | |
section = element.closest(SECTION_SEL); | |
} | |
var paddings = parseInt(section.css('padding-top')) + parseInt(section.css('padding-bottom')); | |
sectionHeight = (windowsHeight - paddings); | |
} | |
return sectionHeight; | |
} | |
/** | |
* Adds a css3 transform property to the container class with or without animation depending on the animated param. | |
*/ | |
function transformContainer(translate3d, animated){ | |
if(animated){ | |
addAnimation(container); | |
}else{ | |
removeAnimation(container); | |
} | |
container.css(getTransforms(translate3d)); | |
//syncronously removing the class after the animation has been applied. | |
setTimeout(function(){ | |
container.removeClass(NO_TRANSITION); | |
},10); | |
} | |
/** | |
* Gets a section by its anchor / index | |
*/ | |
function getSectionByAnchor(sectionAnchor){ | |
//section | |
var section = container.find(SECTION_SEL + '[data-anchor="'+sectionAnchor+'"]'); | |
if(!section.length){ | |
section = $(SECTION_SEL).eq( (sectionAnchor -1) ); | |
} | |
return section; | |
} | |
/** | |
* Gets a slide inside a given section by its anchor / index | |
*/ | |
function getSlideByAnchor(slideAnchor, section){ | |
var slides = section.find(SLIDES_WRAPPER_SEL); | |
var slide = slides.find(SLIDE_SEL + '[data-anchor="'+slideAnchor+'"]'); | |
if(!slide.length){ | |
slide = slides.find(SLIDE_SEL).eq(slideAnchor); | |
} | |
return slide; | |
} | |
/** | |
* Scrolls to the given section and slide anchors | |
*/ | |
function scrollPageAndSlide(destiny, slide){ | |
var section = getSectionByAnchor(destiny); | |
//default slide | |
if (typeof slide === 'undefined') { | |
slide = 0; | |
} | |
//we need to scroll to the section and then to the slide | |
if (destiny !== lastScrolledDestiny && !section.hasClass(ACTIVE)){ | |
scrollPage(section, function(){ | |
scrollSlider(section, slide); | |
}); | |
} | |
//if we were already in the section | |
else{ | |
scrollSlider(section, slide); | |
} | |
} | |
/** | |
* Scrolls the slider to the given slide destination for the given section | |
*/ | |
function scrollSlider(section, slideAnchor){ | |
if(typeof slideAnchor !== 'undefined'){ | |
var slides = section.find(SLIDES_WRAPPER_SEL); | |
var destiny = getSlideByAnchor(slideAnchor, section); | |
if(destiny.length){ | |
landscapeScroll(slides, destiny); | |
} | |
} | |
} | |
/** | |
* Creates a landscape navigation bar with dots for horizontal sliders. | |
*/ | |
function addSlidesNavigation(section, numSlides){ | |
section.append('<div class="' + SLIDES_NAV + '"><ul></ul></div>'); | |
var nav = section.find(SLIDES_NAV_SEL); | |
//top or bottom | |
nav.addClass(options.slidesNavPosition); | |
for(var i=0; i< numSlides; i++){ | |
nav.find('ul').append('<li><a href="#"><span></span></a></li>'); | |
} | |
//centering it | |
nav.css('margin-left', '-' + (nav.width()/2) + 'px'); | |
nav.find('li').first().find('a').addClass(ACTIVE); | |
} | |
/** | |
* Sets the state of the website depending on the active section/slide. | |
* It changes the URL hash when needed and updates the body class. | |
*/ | |
function setState(slideIndex, slideAnchor, anchorLink, sectionIndex){ | |
var sectionHash = ''; | |
if(options.anchors.length && !options.lockAnchors){ | |
//isn't it the first slide? | |
if(slideIndex){ | |
if(typeof anchorLink !== 'undefined'){ | |
sectionHash = anchorLink; | |
} | |
//slide without anchor link? We take the index instead. | |
if(typeof slideAnchor === 'undefined'){ | |
slideAnchor = slideIndex; | |
} | |
lastScrolledSlide = slideAnchor; | |
setUrlHash(sectionHash + '/' + slideAnchor); | |
//first slide won't have slide anchor, just the section one | |
}else if(typeof slideIndex !== 'undefined'){ | |
lastScrolledSlide = slideAnchor; | |
setUrlHash(anchorLink); | |
} | |
//section without slides | |
else{ | |
setUrlHash(anchorLink); | |
} | |
} | |
setBodyClass(); | |
} | |
/** | |
* Sets the URL hash. | |
*/ | |
function setUrlHash(url){ | |
if(options.recordHistory){ | |
location.hash = url; | |
}else{ | |
//Mobile Chrome doesn't work the normal way, so... lets use HTML5 for phones :) | |
if(isTouchDevice || isTouch){ | |
window.history.replaceState(undefined, undefined, '#' + url); | |
}else{ | |
var baseUrl = window.location.href.split('#')[0]; | |
window.location.replace( baseUrl + '#' + url ); | |
} | |
} | |
} | |
/** | |
* Gets the anchor for the given slide / section. Its index will be used if there's none. | |
*/ | |
function getAnchor(element){ | |
var anchor = element.data('anchor'); | |
var index = element.index(); | |
//Slide without anchor link? We take the index instead. | |
if(typeof anchor === 'undefined'){ | |
anchor = index; | |
} | |
return anchor; | |
} | |
/** | |
* Sets a class for the body of the page depending on the active section / slide | |
*/ | |
function setBodyClass(){ | |
var section = $(SECTION_ACTIVE_SEL); | |
var slide = section.find(SLIDE_ACTIVE_SEL); | |
var sectionAnchor = getAnchor(section); | |
var slideAnchor = getAnchor(slide); | |
var text = String(sectionAnchor); | |
if(slide.length){ | |
text = text + '-' + slideAnchor; | |
} | |
//changing slash for dash to make it a valid CSS style | |
text = text.replace('/', '-').replace('#',''); | |
//removing previous anchor classes | |
var classRe = new RegExp('\\b\\s?' + VIEWING_PREFIX + '-[^\\s]+\\b', "g"); | |
$body[0].className = $body[0].className.replace(classRe, ''); | |
//adding the current anchor | |
$body.addClass(VIEWING_PREFIX + '-' + text); | |
} | |
/** | |
* Checks for translate3d support | |
* @return boolean | |
* http://stackoverflow.com/questions/5661671/detecting-transform-translate3d-support | |
*/ | |
function support3d() { | |
var el = document.createElement('p'), | |
has3d, | |
transforms = { | |
'webkitTransform':'-webkit-transform', | |
'OTransform':'-o-transform', | |
'msTransform':'-ms-transform', | |
'MozTransform':'-moz-transform', | |
'transform':'transform' | |
}; | |
// Add it to the body to get the computed style. | |
document.body.insertBefore(el, null); | |
for (var t in transforms) { | |
if (el.style[t] !== undefined) { | |
el.style[t] = 'translate3d(1px,1px,1px)'; | |
has3d = window.getComputedStyle(el).getPropertyValue(transforms[t]); | |
} | |
} | |
document.body.removeChild(el); | |
return (has3d !== undefined && has3d.length > 0 && has3d !== 'none'); | |
} | |
/** | |
* Removes the auto scrolling action fired by the mouse wheel and trackpad. | |
* After this function is called, the mousewheel and trackpad movements won't scroll through sections. | |
*/ | |
function removeMouseWheelHandler(){ | |
if (document.addEventListener) { | |
document.removeEventListener('mousewheel', MouseWheelHandler, false); //IE9, Chrome, Safari, Oper | |
document.removeEventListener('wheel', MouseWheelHandler, false); //Firefox | |
document.removeEventListener('MozMousePixelScroll', MouseWheelHandler, false); //old Firefox | |
} else { | |
document.detachEvent('onmousewheel', MouseWheelHandler); //IE 6/7/8 | |
} | |
} | |
/** | |
* Adds the auto scrolling action for the mouse wheel and trackpad. | |
* After this function is called, the mousewheel and trackpad movements will scroll through sections | |
* https://developer.mozilla.org/en-US/docs/Web/Events/wheel | |
*/ | |
function addMouseWheelHandler(){ | |
var prefix = ''; | |
var _addEventListener; | |
if (window.addEventListener){ | |
_addEventListener = "addEventListener"; | |
}else{ | |
_addEventListener = "attachEvent"; | |
prefix = 'on'; | |
} | |
// detect available wheel event | |
var support = 'onwheel' in document.createElement('div') ? 'wheel' : // Modern browsers support "wheel" | |
document.onmousewheel !== undefined ? 'mousewheel' : // Webkit and IE support at least "mousewheel" | |
'DOMMouseScroll'; // let's assume that remaining browsers are older Firefox | |
if(support == 'DOMMouseScroll'){ | |
document[ _addEventListener ](prefix + 'MozMousePixelScroll', MouseWheelHandler, false); | |
} | |
//handle MozMousePixelScroll in older Firefox | |
else{ | |
document[ _addEventListener ](prefix + support, MouseWheelHandler, false); | |
} | |
} | |
/** | |
* Binding the mousemove when the mouse's middle button is pressed | |
*/ | |
function addMiddleWheelHandler(){ | |
container | |
.on('mousedown', mouseDownHandler) | |
.on('mouseup', mouseUpHandler); | |
} | |
/** | |
* Unbinding the mousemove when the mouse's middle button is released | |
*/ | |
function removeMiddleWheelHandler(){ | |
container | |
.off('mousedown', mouseDownHandler) | |
.off('mouseup', mouseUpHandler); | |
} | |
/** | |
* Adds the possibility to auto scroll through sections on touch devices. | |
*/ | |
function addTouchHandler(){ | |
if(isTouchDevice || isTouch){ | |
//Microsoft pointers | |
var MSPointer = getMSPointer(); | |
$(WRAPPER_SEL).off('touchstart ' + MSPointer.down).on('touchstart ' + MSPointer.down, touchStartHandler); | |
$(WRAPPER_SEL).off('touchmove ' + MSPointer.move).on('touchmove ' + MSPointer.move, touchMoveHandler); | |
} | |
} | |
/** | |
* Removes the auto scrolling for touch devices. | |
*/ | |
function removeTouchHandler(){ | |
if(isTouchDevice || isTouch){ | |
//Microsoft pointers | |
var MSPointer = getMSPointer(); | |
$(WRAPPER_SEL).off('touchstart ' + MSPointer.down); | |
$(WRAPPER_SEL).off('touchmove ' + MSPointer.move); | |
} | |
} | |
/* | |
* Returns and object with Microsoft pointers (for IE<11 and for IE >= 11) | |
* http://msdn.microsoft.com/en-us/library/ie/dn304886(v=vs.85).aspx | |
*/ | |
function getMSPointer(){ | |
var pointer; | |
//IE >= 11 & rest of browsers | |
if(window.PointerEvent){ | |
pointer = { down: 'pointerdown', move: 'pointermove'}; | |
} | |
//IE < 11 | |
else{ | |
pointer = { down: 'MSPointerDown', move: 'MSPointerMove'}; | |
} | |
return pointer; | |
} | |
/** | |
* Gets the pageX and pageY properties depending on the browser. | |
* https://github.com/alvarotrigo/fullPage.js/issues/194#issuecomment-34069854 | |
*/ | |
function getEventsPage(e){ | |
var events = []; | |
events.y = (typeof e.pageY !== 'undefined' && (e.pageY || e.pageX) ? e.pageY : e.touches[0].pageY); | |
events.x = (typeof e.pageX !== 'undefined' && (e.pageY || e.pageX) ? e.pageX : e.touches[0].pageX); | |
//in touch devices with scrollBar:true, e.pageY is detected, but we have to deal with touch events. #1008 | |
if(isTouch && isReallyTouch(e) && options.scrollBar){ | |
events.y = e.touches[0].pageY; | |
events.x = e.touches[0].pageX; | |
} | |
return events; | |
} | |
/** | |
* Slides silently (with no animation) the active slider to the given slide. | |
*/ | |
function silentLandscapeScroll(activeSlide, noCallbacks){ | |
FP.setScrollingSpeed (0, 'internal'); | |
if(typeof noCallbacks !== 'undefined'){ | |
//preventing firing callbacks afterSlideLoad etc. | |
isResizing = true; | |
} | |
landscapeScroll(activeSlide.closest(SLIDES_WRAPPER_SEL), activeSlide); | |
if(typeof noCallbacks !== 'undefined'){ | |
isResizing = false; | |
} | |
FP.setScrollingSpeed(originals.scrollingSpeed, 'internal'); | |
} | |
/** | |
* Scrolls silently (with no animation) the page to the given Y position. | |
*/ | |
function silentScroll(top){ | |
if(options.scrollBar){ | |
container.scrollTop(top); | |
} | |
else if (options.css3) { | |
var translate3d = 'translate3d(0px, -' + top + 'px, 0px)'; | |
transformContainer(translate3d, false); | |
} | |
else { | |
container.css('top', -top); | |
} | |
} | |
/** | |
* Returns the cross-browser transform string. | |
*/ | |
function getTransforms(translate3d){ | |
return { | |
'-webkit-transform': translate3d, | |
'-moz-transform': translate3d, | |
'-ms-transform':translate3d, | |
'transform': translate3d | |
}; | |
} | |
/** | |
* Allowing or disallowing the mouse/swipe scroll in a given direction. (not for keyboard) | |
* @type m (mouse) or k (keyboard) | |
*/ | |
function setIsScrollAllowed(value, direction, type){ | |
switch (direction){ | |
case 'up': isScrollAllowed[type].up = value; break; | |
case 'down': isScrollAllowed[type].down = value; break; | |
case 'left': isScrollAllowed[type].left = value; break; | |
case 'right': isScrollAllowed[type].right = value; break; | |
case 'all': | |
if(type == 'm'){ | |
FP.setAllowScrolling(value); | |
}else{ | |
FP.setKeyboardScrolling(value); | |
} | |
} | |
} | |
/* | |
* Destroys fullpage.js plugin events and optinally its html markup and styles | |
*/ | |
FP.destroy = function(all){ | |
FP.setAutoScrolling(false, 'internal'); | |
FP.setAllowScrolling(false); | |
FP.setKeyboardScrolling(false); | |
container.addClass(DESTROYED); | |
clearTimeout(afterSlideLoadsId); | |
clearTimeout(afterSectionLoadsId); | |
clearTimeout(resizeId); | |
clearTimeout(scrollId); | |
clearTimeout(scrollId2); | |
$window | |
.off('scroll', scrollHandler) | |
.off('hashchange', hashChangeHandler) | |
.off('resize', resizeHandler); | |
$document | |
.off('click', SECTION_NAV_SEL + ' a') | |
.off('mouseenter', SECTION_NAV_SEL + ' li') | |
.off('mouseleave', SECTION_NAV_SEL + ' li') | |
.off('click', SLIDES_NAV_LINK_SEL) | |
.off('mouseover', options.normalScrollElements) | |
.off('mouseout', options.normalScrollElements); | |
$(SECTION_SEL) | |
.off('click', SLIDES_ARROW_SEL); | |
clearTimeout(afterSlideLoadsId); | |
clearTimeout(afterSectionLoadsId); | |
//lets make a mess! | |
if(all){ | |
destroyStructure(); | |
} | |
}; | |
/* | |
* Removes inline styles added by fullpage.js | |
*/ | |
function destroyStructure(){ | |
//reseting the `top` or `translate` properties to 0 | |
silentScroll(0); | |
$(SECTION_NAV_SEL + ', ' + SLIDES_NAV_SEL + ', ' + SLIDES_ARROW_SEL).remove(); | |
//removing inline styles | |
$(SECTION_SEL).css( { | |
'height': '', | |
'background-color' : '', | |
'padding': '' | |
}); | |
$(SLIDE_SEL).css( { | |
'width': '' | |
}); | |
container.css({ | |
'height': '', | |
'position': '', | |
'-ms-touch-action': '', | |
'touch-action': '' | |
}); | |
$htmlBody.css({ | |
'overflow': '', | |
'height': '' | |
}); | |
// remove .fp-enabled class | |
$('html').removeClass(ENABLED); | |
// remove all of the .fp-viewing- classes | |
$.each($body.get(0).className.split(/\s+/), function (index, className) { | |
if (className.indexOf(VIEWING_PREFIX) === 0) { | |
$body.removeClass(className); | |
} | |
}); | |
//removing added classes | |
$(SECTION_SEL + ', ' + SLIDE_SEL).each(function(){ | |
options.scrollOverflowHandler.remove($(this)); | |
$(this).removeClass(TABLE + ' ' + ACTIVE); | |
}); | |
removeAnimation(container); | |
//Unwrapping content | |
container.find(TABLE_CELL_SEL + ', ' + SLIDES_CONTAINER_SEL + ', ' + SLIDES_WRAPPER_SEL).each(function(){ | |
//unwrap not being use in case there's no child element inside and its just text | |
$(this).replaceWith(this.childNodes); | |
}); | |
//scrolling the page to the top with no animation | |
$htmlBody.scrollTop(0); | |
//removing selectors | |
var usedSelectors = [SECTION, SLIDE, SLIDES_CONTAINER]; | |
$.each(usedSelectors, function(index, value){ | |
$('.' + value).removeClass(value); | |
}); | |
} | |
/* | |
* Sets the state for a variable with multiple states (original, and temporal) | |
* Some variables such as `autoScrolling` or `recordHistory` might change automatically its state when using `responsive` or `autoScrolling:false`. | |
* This function is used to keep track of both states, the original and the temporal one. | |
* If type is not 'internal', then we assume the user is globally changing the variable. | |
*/ | |
function setVariableState(variable, value, type){ | |
options[variable] = value; | |
if(type !== 'internal'){ | |
originals[variable] = value; | |
} | |
} | |
/** | |
* Displays warnings | |
*/ | |
function displayWarnings(){ | |
if($('html').hasClass(ENABLED)){ | |
showError('error', 'Fullpage.js can only be initialized once and you are doing it multiple times!'); | |
return; | |
} | |
// Disable mutually exclusive settings | |
if (options.continuousVertical && | |
(options.loopTop || options.loopBottom)) { | |
options.continuousVertical = false; | |
showError('warn', 'Option `loopTop/loopBottom` is mutually exclusive with `continuousVertical`; `continuousVertical` disabled'); | |
} | |
if(options.scrollBar && options.scrollOverflow){ | |
showError('warn', 'Option `scrollBar` is mutually exclusive with `scrollOverflow`. Sections with scrollOverflow might not work well in Firefox'); | |
} | |
if(options.continuousVertical && options.scrollBar){ | |
options.continuousVertical = false; | |
showError('warn', 'Option `scrollBar` is mutually exclusive with `continuousVertical`; `continuousVertical` disabled'); | |
} | |
//anchors can not have the same value as any element ID or NAME | |
$.each(options.anchors, function(index, name){ | |
//case insensitive selectors (http://stackoverflow.com/a/19465187/1081396) | |
var nameAttr = $document.find('[name]').filter(function() { | |
return $(this).attr('name') && $(this).attr('name').toLowerCase() == name.toLowerCase(); | |
}); | |
var idAttr = $document.find('[id]').filter(function() { | |
return $(this).attr('id') && $(this).attr('id').toLowerCase() == name.toLowerCase(); | |
}); | |
if(idAttr.length || nameAttr.length ){ | |
showError('error', 'data-anchor tags can not have the same value as any `id` element on the site (or `name` element for IE).'); | |
idAttr.length && showError('error', '"' + name + '" is is being used by another element `id` property'); | |
nameAttr.length && showError('error', '"' + name + '" is is being used by another element `name` property'); | |
} | |
}); | |
} | |
/** | |
* Shows a message in the console of the given type. | |
*/ | |
function showError(type, text){ | |
console && console[type] && console[type]('fullPage: ' + text); | |
} | |
}; //end of $.fn.fullpage | |
if(typeof IScroll !== 'undefined'){ | |
/* | |
* Turns iScroll `mousewheel` option off dynamically | |
* https://github.com/cubiq/iscroll/issues/1036 | |
*/ | |
IScroll.prototype.wheelOn = function () { | |
this.wrapper.addEventListener('wheel', this); | |
this.wrapper.addEventListener('mousewheel', this); | |
this.wrapper.addEventListener('DOMMouseScroll', this); | |
}; | |
/* | |
* Turns iScroll `mousewheel` option on dynamically | |
* https://github.com/cubiq/iscroll/issues/1036 | |
*/ | |
IScroll.prototype.wheelOff = function () { | |
this.wrapper.removeEventListener('wheel', this); | |
this.wrapper.removeEventListener('mousewheel', this); | |
this.wrapper.removeEventListener('DOMMouseScroll', this); | |
}; | |
} | |
/** | |
* An object to handle overflow scrolling. | |
* This uses jquery.slimScroll to accomplish overflow scrolling. | |
* It is possible to pass in an alternate scrollOverflowHandler | |
* to the fullpage.js option that implements the same functions | |
* as this handler. | |
* | |
* @type {Object} | |
*/ | |
var iscrollHandler = { | |
refreshId: null, | |
iScrollInstances: [], | |
/** | |
* Turns off iScroll for the destination section. | |
* When scrolling very fast on some trackpads (and Apple laptops) the inertial scrolling would | |
* scroll the destination section/slide before the sections animations ends. | |
*/ | |
onLeave: function(){ | |
var scroller = $(SECTION_ACTIVE_SEL).find(SCROLLABLE_SEL).data('iscrollInstance'); | |
if(typeof scroller !== 'undefined' && scroller){ | |
scroller.wheelOff(); | |
} | |
}, | |
// Turns on iScroll on section load | |
afterLoad: function(){ | |
var scroller = $(SECTION_ACTIVE_SEL).find(SCROLLABLE_SEL).data('iscrollInstance'); | |
if(typeof scroller !== 'undefined' && scroller){ | |
scroller.wheelOn(); | |
} | |
}, | |
/** | |
* Called when overflow scrolling is needed for a section. | |
* | |
* @param {Object} element jQuery object containing current section | |
* @param {Number} scrollHeight Current window height in pixels | |
*/ | |
create: function(element, scrollHeight) { | |
var scrollable = element.find(SCROLLABLE_SEL); | |
scrollable.height(scrollHeight); | |
scrollable.each(function() { | |
var $this = jQuery(this); | |
var iScrollInstance = $this.data('iscrollInstance'); | |
if (iScrollInstance) { | |
$.each(iscrollHandler.iScrollInstances, function(){ | |
$(this).destroy(); | |
}); | |
} | |
iScrollInstance = new IScroll($this.get(0), iscrollOptions); | |
iscrollHandler.iScrollInstances.push(iScrollInstance); | |
$this.data('iscrollInstance', iScrollInstance); | |
}); | |
}, | |
/** | |
* Return a boolean depending on whether the scrollable element is a | |
* the end or at the start of the scrolling depending on the given type. | |
* | |
* @param {String} type Either 'top' or 'bottom' | |
* @param {Object} scrollable jQuery object for the scrollable element | |
* @return {Boolean} | |
*/ | |
isScrolled: function(type, scrollable) { | |
var scroller = scrollable.data('iscrollInstance'); | |
if (!scroller) { | |
return false; | |
} | |
if (type === 'top') { | |
return scroller.y >= 0 && !scrollable.scrollTop(); | |
} else if (type === 'bottom') { | |
return (0 - scroller.y) + scrollable.scrollTop() + 1 + scrollable.innerHeight() >= scrollable[0].scrollHeight; | |
} | |
}, | |
/** | |
* Returns the scrollable element for the given section. | |
* If there are landscape slides, will only return a scrollable element | |
* if it is in the active slide. | |
* | |
* @param {Object} activeSection jQuery object containing current section | |
* @return {Boolean} | |
*/ | |
scrollable: function(activeSection){ | |
// if there are landscape slides, we check if the scrolling bar is in the current one or not | |
if (activeSection.find(SLIDES_WRAPPER_SEL).length) { | |
return activeSection.find(SLIDE_ACTIVE_SEL).find(SCROLLABLE_SEL); | |
} | |
return activeSection.find(SCROLLABLE_SEL); | |
}, | |
/** | |
* Returns the scroll height of the wrapped content. | |
* If this is larger than the window height minus section padding, | |
* overflow scrolling is needed. | |
* | |
* @param {Object} element jQuery object containing current section | |
* @return {Number} | |
*/ | |
scrollHeight: function(element) { | |
return element.find(SCROLLABLE_SEL).children().first().get(0).scrollHeight; | |
}, | |
/** | |
* Called when overflow scrolling is no longer needed for a section. | |
* | |
* @param {Object} element jQuery object containing current section | |
*/ | |
remove: function(element) { | |
var scrollable = element.find(SCROLLABLE_SEL); | |
if (scrollable.length) { | |
var iScrollInstance = scrollable.data('iscrollInstance'); | |
iScrollInstance.destroy(); | |
scrollable.data('iscrollInstance', 'undefined'); | |
} | |
element.find(SCROLLABLE_SEL).children().first().children().first().unwrap().unwrap(); | |
}, | |
/** | |
* Called when overflow scrolling has already been setup but the | |
* window height has potentially changed. | |
* | |
* @param {Object} element jQuery object containing current section | |
* @param {Number} scrollHeight Current window height in pixels | |
*/ | |
update: function(element, scrollHeight) { | |
//using a timeout in order to execute the refresh function only once when `update` is called multiple times in a | |
//short period of time. | |
//it also comes on handy because iScroll requires the use of timeout when using `refresh`. | |
clearTimeout(iscrollHandler.refreshId); | |
iscrollHandler.refreshId = setTimeout(function(){ | |
$.each(iscrollHandler.iScrollInstances, function(){ | |
$(this).get(0).refresh(); | |
}); | |
}, 150); | |
//updating the wrappers height | |
element.find(SCROLLABLE_SEL).css('height', scrollHeight + 'px').parent().css('height', scrollHeight + 'px'); | |
}, | |
/** | |
* Called to get any additional elements needed to wrap the section | |
* content in order to facilitate overflow scrolling. | |
* | |
* @return {String|Object} Can be a string containing HTML, | |
* a DOM element, or jQuery object. | |
*/ | |
wrapContent: function() { | |
return '<div class="' + SCROLLABLE + '"><div class="fp-scroller"></div></div>'; | |
} | |
}; | |
}); |
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