/* Slimbox v1.3 - The ultimate lightweight Lightbox clone .current by Christophe Beyls (http://www.digitalia.be) - MIT-style license. Inspired by the original Lightbox v2 by Lokesh Dhakar. */ var Lightbox = { init: function(options){ this.options = Object.extend({ resizeDuration: 400, resizeTransition: Fx.Transitions.sineInOut, initialWidth: 250, initialHeight: 250, animateCaption: true }, options || {}); this.anchors = []; $each(document.links, function(el){ if (el.rel && el.rel.test(/^lightbox/i)){ el.onclick = this.click.pass(el, this); this.anchors.push(el); } }, this); this.eventKeyDown = this.keyboardListener.bindAsEventListener(this); this.eventPosition = this.position.bind(this); this.overlay = new Element('div').setProperty('id', 'lbOverlay').injectInside(document.body); this.center = new Element('div').setProperty('id', 'lbCenter').setStyles({width: this.options.initialWidth+'px', height: this.options.initialHeight+'px', marginLeft: '-'+(this.options.initialWidth/2)+'px', display: 'none'}).injectInside(document.body); this.image = new Element('div').setProperty('id', 'lbImage').injectInside(this.center); this.prevLink = new Element('a').setProperties({id: 'lbPrevLink', href: '#'}).setStyle('display', 'none').injectInside(this.image); this.nextLink = this.prevLink.clone().setProperty('id', 'lbNextLink').injectInside(this.image); this.prevLink.onclick = this.previous.bind(this); this.nextLink.onclick = this.next.bind(this); this.bottomContainer = new Element('div').setProperty('id', 'lbBottomContainer').setStyle('display', 'none').injectInside(document.body); this.bottom = new Element('div').setProperty('id', 'lbBottom').injectInside(this.bottomContainer); new Element('a').setProperties({id: 'lbCloseLink', href: '#'}).injectInside(this.bottom).onclick = this.overlay.onclick = this.close.bind(this); this.caption = new Element('div').setProperty('id', 'lbCaption').injectInside(this.bottom); this.number = new Element('div').setProperty('id', 'lbNumber').injectInside(this.bottom); new Element('div').setStyle('clear', 'both').injectInside(this.bottom); var nextEffect = this.nextEffect.bind(this); this.fx = { overlay: this.overlay.effect('opacity', {duration: 500}).hide(), resize: this.center.effects({duration: this.options.resizeDuration, transition: this.options.resizeTransition, onComplete: nextEffect}), image: this.image.effect('opacity', {duration: 500, onComplete: nextEffect}), bottom: this.bottom.effect('margin-top', {duration: 400, onComplete: nextEffect}) }; this.preloadPrev = new Image(); this.preloadNext = new Image(); }, click: function(link){ if (link.rel.length == 8) return this.show(link.href, link.title); var j, imageNum, images = []; this.anchors.each(function(el){ if (el.rel == link.rel){ for (j = 0; j < images.length; j++) if(images[j][0] == el.href) break; if (j == images.length){ images.push([el.href, el.title]); if (el.href == link.href) imageNum = j; } } }, this); return this.open(images, imageNum); }, show: function(url, title){ return this.open([[url, title]], 0); }, open: function(images, imageNum){ this.images = images; this.position(); this.setup(true); this.top = window.getScrollTop() + (window.getHeight() / 15); this.center.setStyles({top: this.top+'px', display: ''}); this.fx.overlay.start(0.8); return this.changeImage(imageNum); }, position: function(){ this.overlay.setStyles({top: window.getScrollTop()+'px', height: window.getHeight()+'px'}); }, setup: function(open){ var elements = $A(document.getElementsByTagName('object')); if (window.ie) elements.extend(document.getElementsByTagName('select')); elements.each(function(el){ el.style.visibility = open ? 'hidden' : ''; }); var fn = open ? 'addEvent' : 'removeEvent'; window[fn]('scroll', this.eventPosition)[fn]('resize', this.eventPosition); document[fn]('keydown', this.eventKeyDown); this.step = 0; }, keyboardListener: function(event){ switch (event.keyCode){ case 27: case 88: case 67: this.close(); break; case 37: case 80: this.previous(); break; case 39: case 78: this.next(); } }, previous: function(){ return this.changeImage(this.activeImage-1); }, next: function(){ return this.changeImage(this.activeImage+1); }, changeImage: function(imageNum){ if (this.step || (imageNum < 0) || (imageNum >= this.images.length)) return false; this.step = 1; this.activeImage = imageNum; this.bottomContainer.style.display = this.prevLink.style.display = this.nextLink.style.display = 'none'; this.fx.image.hide(); this.center.className = 'lbLoading'; this.preload = new Image(); this.preload.onload = this.nextEffect.bind(this); this.preload.src = this.images[imageNum][0]; return false; }, nextEffect: function(){ switch (this.step++){ case 1: this.center.className = ''; this.image.style.backgroundImage = 'url('+this.images[this.activeImage][0]+')'; this.image.style.width = this.bottom.style.width = this.preload.width+'px'; this.image.style.height = this.prevLink.style.height = this.nextLink.style.height = this.preload.height+'px'; this.caption.setHTML(this.images[this.activeImage][1] || ''); this.number.setHTML((this.images.length == 1) ? '' : 'Image '+(this.activeImage+1)+' of '+this.images.length); if (this.activeImage) this.preloadPrev.src = this.images[this.activeImage-1][0]; if (this.activeImage != (this.images.length - 1)) this.preloadNext.src = this.images[this.activeImage+1][0]; if (this.center.clientHeight != this.image.offsetHeight){ this.fx.resize.start({height: this.image.offsetHeight}); break; } this.step++; case 2: if (this.center.clientWidth != this.image.offsetWidth){ this.fx.resize.start({width: this.image.offsetWidth, marginLeft: -this.image.offsetWidth/2}); break; } this.step++; case 3: this.bottomContainer.setStyles({top: (this.top + this.center.clientHeight)+'px', height: '0px', marginLeft: this.center.style.marginLeft, display: ''}); this.fx.image.start(1); break; case 4: if (this.options.animateCaption){ this.fx.bottom.set(-this.bottom.offsetHeight); this.bottomContainer.style.height = ''; this.fx.bottom.start(0); break; } this.bottomContainer.style.height = ''; case 5: if (this.activeImage) this.prevLink.style.display = ''; if (this.activeImage != (this.images.length - 1)) this.nextLink.style.display = ''; this.step = 0; } }, close: function(){ if (this.step < 0) return; this.step = -1; if (this.preload){ this.preload.onload = Class.empty; this.preload = null; } for (var f in this.fx) this.fx[f].stop(); this.center.style.display = this.bottomContainer.style.display = 'none'; this.fx.overlay.chain(this.setup.pass(false, this)).start(0); return false; } }; window.addEvent('domready', Lightbox.init.bind(Lightbox));