LightboxOptions = Object.extend({ fileLoadingImage:'/images/loading.gif',fileBottomNavCloseImage: '/images/closelabel.gif',overlayOpacity: 0.8,animate: true, resizeSpeed: 7, borderSize: 10,labelImage: "Afbeelding",labelOf: "van"}, window.LightboxOptions || {});var Lightbox = Class.create();Lightbox.prototype = { imageArray: [], activeImage: undefined,initialize: function() {this.updateImageList();this.keyboardAction = this.keyboardAction.bindAsEventListener(this);if (LightboxOptions.resizeSpeed > 10) LightboxOptions.resizeSpeed = 10; if (LightboxOptions.resizeSpeed < 1)LightboxOptions.resizeSpeed = 1;this.resizeDuration = LightboxOptions.animate ? ((11 - LightboxOptions.resizeSpeed) * 0.15) : 0; this.overlayDuration = LightboxOptions.animate ? 0.2 : 0; var size = (LightboxOptions.animate ? 250 : 1) + 'px'; var objBody = $$('body')[0];objBody.appendChild(Builder.node('div',{id:'overlay'}));objBody.appendChild(Builder.node('div',{id:'lightbox'}, [ Builder.node('div',{id:'outerImageContainer'},Builder.node('div',{id:'imageContainer'}, [ Builder.node('img',{id:'lightboxImage'}),Builder.node('div',{id:'hoverNav'}, [ Builder.node('a',{id:'prevLink', href: '#' }), Builder.node('a',{id:'nextLink', href: '#' }) ]), Builder.node('div',{id:'loading'},Builder.node('a',{id:'loadingLink', href: '#' },Builder.node('img', {src: LightboxOptions.fileLoadingImage}) ) ) ]) ), Builder.node('div', {id:'imageDataContainer'}, Builder.node('div',{id:'imageData'}, [ Builder.node('div',{id:'imageDetails'}, [ Builder.node('span',{id:'caption'}), Builder.node('span',{id:'numberDisplay'}) ]), Builder.node('div',{id:'bottomNav'}, Builder.node('a',{id:'bottomNavClose', href: '#' }, Builder.node('img', { src: LightboxOptions.fileBottomNavCloseImage }) ) ) ]) ) ]));$('overlay').hide().observe('click', (function() { this.end(); }).bind(this));$('lightbox').hide().observe('click', (function(event) { if (event.element().id == 'lightbox') this.end(); }).bind(this));$('outerImageContainer').setStyle({ width: size, height: size });$('prevLink').observe('click', (function(event) { event.stop(); this.changeImage(this.activeImage - 1); }).bindAsEventListener(this));$('nextLink').observe('click', (function(event) { event.stop(); this.changeImage(this.activeImage + 1); }).bindAsEventListener(this));$('loadingLink').observe('click', (function(event) { event.stop(); this.end(); }).bind(this));$('bottomNavClose').observe('click', (function(event) { event.stop(); this.end(); }).bind(this));var th = this; (function(){ var ids ='overlay lightbox outerImageContainer imageContainer lightboxImage hoverNav prevLink nextLink loading loadingLink ' +'imageDataContainer imageData imageDetails caption numberDisplay bottomNav bottomNavClose';$w(ids).each(function(id){ th[id] = $(id); }); }).defer(); },updateImageList: function() {this.updateImageList = Prototype.emptyFunction;document.observe('click', (function(event){ var target = event.findElement('a[rel^=lightbox]') || event.findElement('area[rel^=lightbox]'); if (target) { event.stop(); this.start(target); } }).bind(this)); },start: function(imageLink) {$$('select', 'object', 'embed').each(function(node){ node.style.visibility = 'hidden' });var arrayPageSize = this.getPageSize(); $('overlay').setStyle({ width: arrayPageSize[0] + 'px', height: arrayPageSize[1] + 'px' });new Effect.Appear(this.overlay, { duration: this.overlayDuration, from: 0.0, to: LightboxOptions.overlayOpacity });this.imageArray = []; var imageNum = 0; if ((imageLink.rel == 'lightbox')){ this.imageArray.push([imageLink.href, imageLink.title]);} else { this.imageArray =$$(imageLink.tagName + '[href][rel="' + imageLink.rel + '"]'). collect(function(anchor){ return [anchor.href, anchor.title]; }). uniq();while (this.imageArray[imageNum][0] != imageLink.href) { imageNum++; } }var arrayPageScroll = document.viewport.getScrollOffsets(); var lightboxTop = arrayPageScroll[1] + (document.viewport.getHeight() / 10); var lightboxLeft = arrayPageScroll[0]; this.lightbox.setStyle({ top: lightboxTop + 'px', left: lightboxLeft + 'px' }).show();this.changeImage(imageNum); },changeImage: function(imageNum) { this.activeImage = imageNum;if (LightboxOptions.animate) this.loading.show(); this.lightboxImage.hide(); this.hoverNav.hide(); this.prevLink.hide(); this.nextLink.hide(); this.imageDataContainer.setStyle({opacity: .0001}); this.numberDisplay.hide();var imgPreloader = new Image();imgPreloader.onload = (function(){ this.lightboxImage.src = this.imageArray[this.activeImage][0]; this.resizeImageContainer(imgPreloader.width, imgPreloader.height); }).bind(this); imgPreloader.src = this.imageArray[this.activeImage][0]; },resizeImageContainer: function(imgWidth, imgHeight) {var widthCurrent= this.outerImageContainer.getWidth(); var heightCurrent = this.outerImageContainer.getHeight();var widthNew= (imgWidth+ LightboxOptions.borderSize * 2); var heightNew = (imgHeight + LightboxOptions.borderSize * 2);var xScale = (widthNew/ widthCurrent)* 100; var yScale = (heightNew / heightCurrent) * 100;var wDiff = widthCurrent - widthNew; var hDiff = heightCurrent - heightNew;if (hDiff != 0) new Effect.Scale(this.outerImageContainer, yScale, {scaleX: false, duration: this.resizeDuration, queue: 'front'});if (wDiff != 0) new Effect.Scale(this.outerImageContainer, xScale, {scaleY: false, duration: this.resizeDuration, delay: this.resizeDuration}); var timeout = 0; if ((hDiff == 0) && (wDiff == 0)){ timeout = 100; if (Prototype.Browser.IE) timeout = 250;}(function(){ this.prevLink.setStyle({ height: imgHeight + 'px' }); this.nextLink.setStyle({ height: imgHeight + 'px' }); this.imageDataContainer.setStyle({ width: widthNew + 'px' });this.showImage(); }).bind(this).delay(timeout / 1000); },showImage: function(){ this.loading.hide(); new Effect.Appear(this.lightboxImage, {duration: this.resizeDuration,queue: 'end',afterFinish: (function(){ this.updateDetails(); }).bind(this)}); this.preloadNeighborImages(); },updateDetails: function() {if (this.imageArray[this.activeImage][1] != ""){ this.caption.update(this.imageArray[this.activeImage][1]).show(); }if (this.imageArray.length > 1){ this.numberDisplay.update( LightboxOptions.labelImage + ' ' + (this.activeImage + 1) + ' ' + LightboxOptions.labelOf + '' + this.imageArray.length).show(); }new Effect.Parallel( [new Effect.SlideDown(this.imageDataContainer, { sync: true, duration: this.resizeDuration, from: 0.0, to: 1.0 }),new Effect.Appear(this.imageDataContainer, { sync: true, duration: this.resizeDuration })],{duration: this.resizeDuration,afterFinish: (function() { var arrayPageSize = this.getPageSize(); this.overlay.setStyle({ height: arrayPageSize[1] + 'px' }); this.updateNav(); }).bind(this) }); },updateNav: function() {this.hoverNav.show(); if (this.activeImage > 0) this.prevLink.show();if (this.activeImage < (this.imageArray.length - 1)) this.nextLink.show();this.enableKeyboardNav(); },enableKeyboardNav: function() { document.observe('keydown', this.keyboardAction);},disableKeyboardNav: function() { document.stopObserving('keydown', this.keyboardAction);},keyboardAction: function(event) { var keycode = event.keyCode;var escapeKey; if (event.DOM_VK_ESCAPE) {escapeKey = event.DOM_VK_ESCAPE; } else { escapeKey = 27; }var key = String.fromCharCode(keycode).toLowerCase();if (key.match(/x|o|c/) || (keycode == escapeKey)){ this.end(); } else if ((key == 'p') || (keycode == 37)){ if (this.activeImage != 0){ this.disableKeyboardNav(); this.changeImage(this.activeImage - 1); } } else if ((key == 'n') || (keycode == 39)){ if (this.activeImage != (this.imageArray.length - 1)){ this.disableKeyboardNav(); this.changeImage(this.activeImage + 1); } } },preloadNeighborImages: function(){ var preloadNextImage, preloadPrevImage; if (this.imageArray.length > this.activeImage + 1){ preloadNextImage = new Image(); preloadNextImage.src = this.imageArray[this.activeImage + 1][0]; } if (this.activeImage > 0){ preloadPrevImage = new Image(); preloadPrevImage.src = this.imageArray[this.activeImage - 1][0]; }},end: function() { this.disableKeyboardNav(); this.lightbox.hide(); new Effect.Fade(this.overlay, { duration: this.overlayDuration }); $$('select', 'object', 'embed').each(function(node){ node.style.visibility = 'visible' }); },getPageSize: function() { var xScroll, yScroll;if (window.innerHeight && window.scrollMaxY) {xScroll = window.innerWidth + window.scrollMaxX;yScroll = window.innerHeight + window.scrollMaxY;} else if (document.body.scrollHeight > document.body.offsetHeight){ xScroll = document.body.scrollWidth;yScroll = document.body.scrollHeight;} else { xScroll = document.body.offsetWidth;yScroll = document.body.offsetHeight;}var windowWidth, windowHeight;if (self.innerHeight) {if(document.documentElement.clientWidth){windowWidth = document.documentElement.clientWidth;} else {windowWidth = self.innerWidth;}windowHeight = self.innerHeight;} else if (document.documentElement && document.documentElement.clientHeight) { windowWidth = document.documentElement.clientWidth;windowHeight = document.documentElement.clientHeight;} else if (document.body) { windowWidth = document.body.clientWidth;windowHeight = document.body.clientHeight;}if(yScroll < windowHeight){pageHeight = windowHeight;} else {pageHeight = yScroll;}if(xScroll < windowWidth){pageWidth = xScroll;} else {pageWidth = windowWidth;}return [pageWidth,pageHeight];}};document.observe('dom:loaded', function () { new Lightbox(); });