"
Team:Panama/jd.gallery.js
From 2010.igem.org
// declaring the class var gallery = { initialize: function(element, options) { this.setOptions({ showArrows: true, // buttons forward and backword showCarousel: false, // picture thumbnails showInfopane: true, // the text over the images embedLinks: false, fadeDuration: 500, timed: false, delay: 6000, preloader: true, preloaderImage: true, preloaderErrorImage: true, /* Data retrieval */ manualData: [], populateFrom: false, populateData: true, destroyAfterPopulate: true, elementSelector: "div.imageElement", titleSelector: "h3", subtitleSelector: "p", linkSelector: "a.open", imageSelector: "img.full", thumbnailSelector: "img.thumbnail", defaultTransition: "fade", /* InfoPane options */ slideInfoZoneOpacity: 0.7, slideInfoZoneSlide: true, /* Carousel options */ carouselMinimizedOpacity: 0.4, carouselMinimizedHeight: 20, carouselMaximizedOpacity: 0.9, thumbHeight: 75, thumbWidth: 100, thumbSpacing: 10, thumbIdleOpacity: 0.2, textShowCarousel: 'Pictures', showCarouselLabel: true, thumbCloseCarousel: true, useThumbGenerator: false, thumbGenerator: 'resizer.php', useExternalCarousel: false, carouselElement: false, carouselHorizontal: true, activateCarouselScroller: true, carouselPreloader: true, textPreloadingCarousel: 'Loading...', /* CSS Classes */ baseClass: 'jdGallery', withArrowsClass: 'withArrows', /* Plugins: HistoryManager */ useHistoryManager: false, customHistoryKey: false }, options); this.fireEvent('onInit'); this.currentIter = 0; this.lastIter = 0; this.maxIter = 0; this.galleryElement = element; this.galleryData = this.options.manualData; this.galleryInit = 1; this.galleryElements = Array(); this.thumbnailElements = Array(); this.galleryElement.addClass(this.options.baseClass);
this.populateFrom = element; if (this.options.populateFrom) this.populateFrom = this.options.populateFrom; if (this.options.populateData) this.populateData(); element.style.display="block";
if (this.options.useHistoryManager) this.initHistory();
if (this.options.embedLinks) { this.currentLink = new Element('a').addClass('open').setProperties({ href: '#', title: }).injectInside(element); if ((!this.options.showArrows) && (!this.options.showCarousel)) this.galleryElement = element = this.currentLink; else this.currentLink.setStyle('display', 'none'); }
this.constructElements(); if ((this.galleryData.length>1)&&(this.options.showArrows)) { var leftArrow = new Element('a').addClass('left').addEvent( 'click', this.prevItem.bind(this) ).injectInside(element); var rightArrow = new Element('a').addClass('right').addEvent( 'click', this.nextItem.bind(this) ).injectInside(element); this.galleryElement.addClass(this.options.withArrowsClass); } this.loadingElement = new Element('div').addClass('loadingElement').injectInside(element); if (this.options.showInfopane) this.initInfoSlideshow(); if (this.options.showCarousel) this.initCarousel(); this.doSlideShow(1); }, populateData: function() { currentArrayPlace = this.galleryData.length; options = this.options; var data = $A(this.galleryData); data.extend(this.populateGallery(this.populateFrom, currentArrayPlace)); this.galleryData = data; this.fireEvent('onPopulated'); }, populateGallery: function(element, startNumber) { var data = []; options = this.options; currentArrayPlace = startNumber; element.getElements(options.elementSelector).each(function(el) { elementDict = { image: el.getElement(options.imageSelector).getProperty('src'), number: currentArrayPlace, transition: this.options.defaultTransition }; elementDict.extend = $extend; if ((options.showInfopane) | (options.showCarousel)) elementDict.extend({ title: el.getElement(options.titleSelector).innerHTML, description: el.getElement(options.subtitleSelector).innerHTML }); if (options.embedLinks) elementDict.extend({ link: el.getElement(options.linkSelector).href||false, linkTitle: el.getElement(options.linkSelector).title||false, linkTarget: el.getElement(options.linkSelector).getProperty('target')||false }); if ((!options.useThumbGenerator) && (options.showCarousel)) elementDict.extend({ thumbnail: el.getElement(options.thumbnailSelector).getProperty('src') }); else if (options.useThumbGenerator) elementDict.extend({ thumbnail: options.thumbGenerator + '?imgfile=' + elementDict.image + '&max_width=' + options.thumbWidth + '&max_height=' + options.thumbHeight });
data.extend([elementDict]); currentArrayPlace++; if (this.options.destroyAfterPopulate) el.remove(); }); return data; }, constructElements: function() { el = this.galleryElement; this.maxIter = this.galleryData.length; var currentImg; for(i=0;i<this.galleryData.length;i++) { var currentImg = new Fx.Styles( new Element('div').addClass('slideElement').setStyles({ 'position':'absolute', 'left':'0px', 'right':'0px', 'margin':'0px', 'padding':'0px', 'backgroundPosition':"center center", 'opacity':'0' }).injectInside(el), 'opacity', {duration: this.options.fadeDuration} ); if (this.options.preloader) { currentImg.source = this.galleryData[i].image; currentImg.loaded = false; currentImg.load = function(imageStyle) { if (!imageStyle.loaded) { new Asset.image(imageStyle.source, { 'onload' : function(img){ img.element.setStyle( 'backgroundImage', "url('" + img.source + "')") img.loaded = true; }.bind(this, imageStyle) }); } }.pass(currentImg, this); } else { currentImg.element.setStyle('backgroundImage', "url('" + this.galleryData[i].image + "')"); } this.galleryElements[parseInt(i)] = currentImg; } }, destroySlideShow: function(element) { var myClassName = element.className; var newElement = new Element('div').addClass('myClassName'); element.parentNode.replaceChild(newElement, element); }, startSlideShow: function() { this.fireEvent('onStart'); this.loadingElement.style.display = "none"; this.lastIter = this.maxIter - 1; this.currentIter = 0; this.galleryInit = 0; this.galleryElements[parseInt(this.currentIter)].set({opacity: 1}); if (this.options.showInfopane) this.showInfoSlideShow.delay(1000, this); var textShowCarousel = formatString(this.options.textShowCarousel, this.currentIter+1, this.maxIter); if (this.options.showCarousel&&(!this.options.carouselPreloader)) this.carouselBtn.setHTML(textShowCarousel).setProperty('title', textShowCarousel); this.prepareTimer(); if (this.options.embedLinks) this.makeLink(this.currentIter); }, nextItem: function() { this.fireEvent('onNextCalled'); this.nextIter = this.currentIter+1; if (this.nextIter >= this.maxIter) this.nextIter = 0; this.galleryInit = 0; this.goTo(this.nextIter); }, prevItem: function() { this.fireEvent('onPreviousCalled'); this.nextIter = this.currentIter-1; if (this.nextIter <= -1) this.nextIter = this.maxIter - 1; this.galleryInit = 0; this.goTo(this.nextIter); }, goTo: function(num) { this.clearTimer(); if(this.options.preloader) { this.galleryElements[num].load(); if (num==0) this.galleryElements[this.maxIter - 1].load(); else this.galleryElements[num - 1].load(); if (num==(this.maxIter - 1)) this.galleryElements[0].load(); else this.galleryElements[num + 1].load();
} if (this.options.embedLinks) this.clearLink(); if (this.options.showInfopane) { this.slideInfoZone.clearChain(); this.hideInfoSlideShow().chain(this.changeItem.pass(num, this)); } else this.currentChangeDelay = this.changeItem.delay(500, this, num); if (this.options.embedLinks) this.makeLink(num); this.prepareTimer(); /*if (this.options.showCarousel) this.clearThumbnailsHighlights();*/ }, changeItem: function(num) { this.fireEvent('onStartChanging'); this.galleryInit = 0; if (this.currentIter != num) { for(i=0;i<this.maxIter;i++) { if ((i != this.currentIter)) this.galleryElements[i].set({opacity: 0}); } gallery.Transitions[this.galleryData[num].transition].pass([ this.galleryElements[this.currentIter], this.galleryElements[num], this.currentIter, num], this)(); this.currentIter = num; } var textShowCarousel = formatString(this.options.textShowCarousel, num+1, this.maxIter); if (this.options.showCarousel) this.carouselBtn.setHTML(textShowCarousel).setProperty('title', textShowCarousel); this.doSlideShow.bind(this)(); this.fireEvent('onChanged'); }, clearTimer: function() { if (this.options.timed) $clear(this.timer); }, prepareTimer: function() { if (this.options.timed) this.timer = this.nextItem.delay(this.options.delay, this); }, doSlideShow: function(position) { if (this.galleryInit == 1) { imgPreloader = new Image(); imgPreloader.onload=function(){ this.startSlideShow.delay(10, this); }.bind(this); imgPreloader.src = this.galleryData[0].image; if(this.options.preloader) this.galleryElements[0].load(); } else { if (this.options.showInfopane) { if (this.options.showInfopane) { this.showInfoSlideShow.delay((500 + this.options.fadeDuration), this); } else if ((this.options.showCarousel)&&(this.options.activateCarouselScroller)) this.centerCarouselOn(position); } } }, createCarousel: function() { var carouselElement; if (!this.options.useExternalCarousel) { var carouselContainerElement = new Element('div').addClass('carouselContainer').injectInside(this.galleryElement); this.carouselContainer = new Fx.Styles(carouselContainerElement, {transition: Fx.Transitions.expoOut}); this.carouselContainer.normalHeight = carouselContainerElement.offsetHeight; this.carouselContainer.set({'opacity': this.options.carouselMinimizedOpacity, 'top': (this.options.carouselMinimizedHeight - this.carouselContainer.normalHeight)}); this.carouselBtn = new Element('a').addClass('carouselBtn').setProperties({ title: this.options.textShowCarousel }).injectInside(carouselContainerElement); if(this.options.carouselPreloader) this.carouselBtn.setHTML(this.options.textPreloadingCarousel); else this.carouselBtn.setHTML(this.options.textShowCarousel); this.carouselBtn.addEvent( 'click', function () { this.carouselContainer.clearTimer(); this.toggleCarousel(); }.bind(this) ); this.carouselActive = false;
carouselElement = new Element('div').addClass('carousel').injectInside(carouselContainerElement); this.carousel = new Fx.Styles(carouselElement); } else { carouselElement = $(this.options.carouselElement).addClass('jdExtCarousel'); } this.carouselElement = new Fx.Styles(carouselElement, {transition: Fx.Transitions.expoOut}); this.carouselElement.normalHeight = carouselElement.offsetHeight; if (this.options.showCarouselLabel) this.carouselLabel = new Element('p').addClass('label').injectInside(carouselElement); carouselWrapper = new Element('div').addClass('carouselWrapper').injectInside(carouselElement); this.carouselWrapper = new Fx.Styles(carouselWrapper, {transition: Fx.Transitions.expoOut}); this.carouselWrapper.normalHeight = carouselWrapper.offsetHeight; this.carouselInner = new Element('div').addClass('carouselInner').injectInside(carouselWrapper); if (this.options.activateCarouselScroller) { this.carouselWrapper.scroller = new Scroller(carouselWrapper, { area: 100, velocity: 0.2 })
this.carouselWrapper.elementScroller = new Fx.Scroll(carouselWrapper, { duration: 400, onStart: this.carouselWrapper.scroller.stop.bind(this.carouselWrapper.scroller), onComplete: this.carouselWrapper.scroller.start.bind(this.carouselWrapper.scroller) }); } }, fillCarousel: function() { this.constructThumbnails(); this.carouselInner.normalWidth = ((this.maxIter * (this.options.thumbWidth + this.options.thumbSpacing + 2))+this.options.thumbSpacing) + "px"; this.carouselInner.style.width = this.carouselInner.normalWidth; }, initCarousel: function () { this.createCarousel(); this.fillCarousel(); if (this.options.carouselPreloader) this.preloadThumbnails(); }, flushCarousel: function() { this.thumbnailElements.each(function(myFx) { myFx.element.remove(); myFx = myFx.element = null; }); this.thumbnailElements = []; }, toggleCarousel: function() { if (this.carouselActive) this.hideCarousel(); else this.showCarousel(); }, showCarousel: function () { this.fireEvent('onShowCarousel'); this.carouselContainer.start({ 'opacity': this.options.carouselMaximizedOpacity, 'top': 0 }).chain(function() { this.carouselActive = true; this.carouselWrapper.scroller.start(); this.fireEvent('onCarouselShown'); this.carouselContainer.options.onComplete = null; }.bind(this)); }, hideCarousel: function () { this.fireEvent('onHideCarousel'); var targetTop = this.options.carouselMinimizedHeight - this.carouselContainer.normalHeight; this.carouselContainer.start({ 'opacity': this.options.carouselMinimizedOpacity, 'top': targetTop }).chain(function() { this.carouselActive = false; this.carouselWrapper.scroller.stop(); this.fireEvent('onCarouselHidden'); this.carouselContainer.options.onComplete = null; }.bind(this)); }, constructThumbnails: function () { element = this.carouselInner; for(i=0;i<this.galleryData.length;i++) { var currentImg = new Fx.Style(new Element ('div').addClass("thumbnail").setStyles({ backgroundImage: "url('" + this.galleryData[i].thumbnail + "')", backgroundPosition: "center center", backgroundRepeat: 'no-repeat', marginLeft: this.options.thumbSpacing + "px", width: this.options.thumbWidth + "px", height: this.options.thumbHeight + "px" }).injectInside(element), "opacity", {duration: 200}).set(this.options.thumbIdleOpacity); currentImg.element.addEvents({ 'mouseover': function (myself) { myself.clearTimer(); myself.start(0.99); if (this.options.showCarouselLabel) $(this.carouselLabel).setHTML('' + (myself.relatedImage.number + 1) + "/" + this.maxIter + ": " + myself.relatedImage.title); }.pass(currentImg, this), 'mouseout': function (myself) { myself.clearTimer(); myself.start(this.options.thumbIdleOpacity); }.pass(currentImg, this), 'click': function (myself) { this.goTo(myself.relatedImage.number); if (this.options.thumbCloseCarousel) this.hideCarousel(); }.pass(currentImg, this) });
currentImg.relatedImage = this.galleryData[i]; this.thumbnailElements[parseInt(i)] = currentImg; } }, log: function(value) { if(console.log) console.log(value); }, preloadThumbnails: function() { var thumbnails = []; for(i=0;i<this.galleryData.length;i++) { thumbnails[parseInt(i)] = this.galleryData[i].thumbnail; } this.thumbnailPreloader = new Preloader(); this.thumbnailPreloader.addEvent('onComplete', function() { var textShowCarousel = formatString(this.options.textShowCarousel, this.currentIter+1, this.maxIter); this.carouselBtn.setHTML(textShowCarousel).setProperty('title', textShowCarousel); }.bind(this)); this.thumbnailPreloader.load(thumbnails); }, clearThumbnailsHighlights: function() { for(i=0;i<this.galleryData.length;i++) { this.thumbnailElements[i].clearTimer(); this.thumbnailElements[i].start(0.2); } }, changeThumbnailsSize: function(width, height) { for(i=0;i<this.galleryData.length;i++) { this.thumbnailElements[i].clearTimer(); this.thumbnailElements[i].element.setStyles({ 'width': width + "px", 'height': height + "px" }); } }, centerCarouselOn: function(num) { if (!this.carouselWallMode) { var carouselElement = this.thumbnailElements[num]; var position = carouselElement.element.offsetLeft + (carouselElement.element.offsetWidth / 2); var carouselWidth = this.carouselWrapper.element.offsetWidth; var carouselInnerWidth = this.carouselInner.offsetWidth; var diffWidth = carouselWidth / 2; var scrollPos = position-diffWidth; this.carouselWrapper.elementScroller.scrollTo = (scrollPos,0); } }, initInfoSlideshow: function() { /*if (this.slideInfoZone.element) this.slideInfoZone.element.remove();*/ this.slideInfoZone = new Fx.Styles(new Element('div').addClass('slideInfoZone').injectInside($(this.galleryElement))).set({'opacity':0}); var slideInfoZoneTitle = new Element('h2').injectInside(this.slideInfoZone.element); var slideInfoZoneDescription = new Element('p').injectInside(this.slideInfoZone.element); this.slideInfoZone.normalHeight = this.slideInfoZone.element.offsetHeight; this.slideInfoZone.element.setStyle('opacity',0); }, changeInfoSlideShow: function() { this.hideInfoSlideShow.delay(10, this); this.showInfoSlideShow.delay(500, this); }, showInfoSlideShow: function() { this.fireEvent('onShowInfopane'); this.slideInfoZone.clearTimer(); element = this.slideInfoZone.element; element.getElement('h2').setHTML(this.galleryData[this.currentIter].title); element.getElement('p').setHTML(this.galleryData[this.currentIter].description); if(this.options.slideInfoZoneSlide) this.slideInfoZone.start({'opacity': [0, this.options.slideInfoZoneOpacity], 'height': [0, this.slideInfoZone.normalHeight]}); else this.slideInfoZone.start({'opacity': [0, this.options.slideInfoZoneOpacity]}); if (this.options.showCarousel) this.slideInfoZone.chain(this.centerCarouselOn.pass(this.currentIter, this)); return this.slideInfoZone; }, hideInfoSlideShow: function() { this.fireEvent('onHideInfopane'); this.slideInfoZone.clearTimer(); if(this.options.slideInfoZoneSlide) this.slideInfoZone.start({'opacity': 0, 'height': 0}); else this.slideInfoZone.start({'opacity': 0}); return this.slideInfoZone; }, makeLink: function(num) { this.currentLink.setProperties({ href: this.galleryData[num].link, title: this.galleryData[num].linkTitle }) if (!((this.options.embedLinks) && (!this.options.showArrows) && (!this.options.showCarousel))) this.currentLink.setStyle('display', 'block'); }, clearLink: function() { this.currentLink.setProperties({href: , title: }); if (!((this.options.embedLinks) && (!this.options.showArrows) && (!this.options.showCarousel))) this.currentLink.setStyle('display', 'none'); }, /* To change the gallery data, those two functions : */ flushGallery: function() { this.galleryElements.each(function(myFx) { myFx.element.remove(); myFx = myFx.element = null; }); this.galleryElements = []; }, changeData: function(data) { this.galleryData = data; this.clearTimer(); this.flushGallery(); if (this.options.showCarousel) this.flushCarousel(); this.constructElements(); if (this.options.showCarousel) this.fillCarousel(); if (this.options.showInfopane) this.hideInfoSlideShow(); this.galleryInit=1; this.lastIter=0; this.currentIter=0; this.doSlideShow(1); }, /* Plugins: HistoryManager */ initHistory: function() { this.fireEvent('onHistoryInit'); this.historyKey = this.galleryElement.id + '-picture'; if (this.options.customHistoryKey) this.historyKey = this.options.customHistoryKey(); this.history = HistoryManager.register( this.historyKey, [1], function(values) { if (parseInt(values[0])-1 < this.maxIter) this.goTo(parseInt(values[0])-1); }.bind(this), function(values) { return [this.historyKey, '(', values[0], ')'].join(); }.bind(this), this.historyKey + '\\((\\d+)\\)'); this.addEvent('onChanged', function(){ this.history.setValue(0, this.currentIter+1); }.bind(this)); this.fireEvent('onHistoryInited'); } }; gallery = new Class(gallery); gallery.implement(new Events); gallery.implement(new Options);
gallery.Transitions = new Abstract ({ fade: function(oldFx, newFx, oldPos, newPos){ oldFx.options.transition = newFx.options.transition = Fx.Transitions.linear; oldFx.options.duration = newFx.options.duration = this.options.fadeDuration; if (newPos > oldPos) newFx.start({opacity: 1}); else { newFx.set({opacity: 1}); oldFx.start({opacity: 0}); } }, crossfade: function(oldFx, newFx, oldPos, newPos){ oldFx.options.transition = newFx.options.transition = Fx.Transitions.linear; oldFx.options.duration = newFx.options.duration = this.options.fadeDuration; newFx.start({opacity: 1}); oldFx.start({opacity: 0}); }, fadebg: function(oldFx, newFx, oldPos, newPos){ oldFx.options.transition = newFx.options.transition = Fx.Transitions.linear; oldFx.options.duration = newFx.options.duration = this.options.fadeDuration / 2; oldFx.start({opacity: 0}).chain(newFx.start.pass([{opacity: 1}], newFx)); } });
/* All code copyright 2007 Jonathan Schemoul */
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Follows: Preloader (class) * Simple class for preloading images with support for progress reporting * Copyright 2007 Tomocchino. * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
var Preloader = new Class({
Implements: [Events, Options],
options: {
root : ,
period : 100
},
initialize: function(options){
this.setOptions(options);
},
load: function(sources) {
this.index = 0;
this.images = [];
this.sources = this.temps = sources;
this.total = this. sources.length;
this.fireEvent('onStart', [this.index, this.total]);
this.timer = this.progress.periodical(this.options.period, this);
this.sources.each(function(source, index){
this.images[index] = new Asset.image(this.options.root + source, {
'onload' : function(){ this.index++; if(this.images[index]) this.fireEvent('onLoad', [this.images[index], index, source]); }.bind(this),
'onerror' : function(){ this.index++; this.fireEvent('onError', [this.images.splice(index, 1), index, source]); }.bind(this),
'onabort' : function(){ this.index++; this.fireEvent('onError', [this.images.splice(index, 1), index, source]); }.bind(this)
});
}, this);
},
progress: function() {
this.fireEvent('onProgress', [Math.min(this.index, this.total), this.total]);
if(this.index >= this.total) this.complete();
},
complete: function(){
$clear(this.timer);
this.fireEvent('onComplete', [this.images]);
},
cancel: function(){
$clear(this.timer);
}
});
Preloader.implement(new Events, new Options);
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Follows: formatString (function) * Original name: Yahoo.Tools.printf * Copyright Yahoo. * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
function formatString() { var num = arguments.length; var oStr = arguments[0]; for (var i = 1; i < num; i++) { var pattern = "\\{" + (i-1) + "\\}"; var re = new RegExp(pattern, "g"); oStr = oStr.replace(re, arguments[i]); } return oStr; }
