-/*
- Lightbox JS: Fullsize Image Overlays
- by Lokesh Dhakar - http://www.huddletogether.com
- For more information on this script, visit:
- http://huddletogether.com/projects/lightbox/
-
- Licensed under the Creative Commons Attribution 2.5 License - http://creativecommons.org/licenses/by/2.5/
- (basically, do anything you want, just leave my name and link)
-
- Table of Contents
- -----------------
- Configuration
-
- Functions
- - getPageScroll()
- - getPageSize()
- - pause()
- - getKey()
- - listenKey()
- - showLightbox()
- - hideLightbox()
- - initLightbox()
- - addLoadEvent()
-
- Function Calls
- - addLoadEvent(initLightbox)
-
-*/
-
-
-
-//
-// Configuration
-//
-
-// If you would like to use a custom loading image or close button reference them in the next two lines.
-var loadingImage = 'loading.gif';
-var closeButton = 'close.gif';
-
-
-
-
-
-//
-// getPageScroll()
-// Returns array with x,y page scroll values.
-// Core code from - quirksmode.org
-//
-function getPageScroll(){
-
- var yScroll;
-
- if (self.pageYOffset) {
- yScroll = self.pageYOffset;
- } else if (document.documentElement && document.documentElement.scrollTop){ // Explorer 6 Strict
- yScroll = document.documentElement.scrollTop;
- } else if (document.body) {// all other Explorers
- yScroll = document.body.scrollTop;
- }
-
- arrayPageScroll = new Array('',yScroll)
- return arrayPageScroll;
-}
-
-
-
-//
-// getPageSize()
-// Returns array with page width, height and window width, height
-// Core code from - quirksmode.org
-// Edit for Firefox by pHaez
-//
-function getPageSize(){
-
- var xScroll, yScroll;
-
- if (window.innerHeight && window.scrollMaxY) {
- xScroll = document.body.scrollWidth;
- yScroll = window.innerHeight + window.scrollMaxY;
- } else if (document.body.scrollHeight > document.body.offsetHeight){ // all but Explorer Mac
- xScroll = document.body.scrollWidth;
- yScroll = document.body.scrollHeight;
- } else { // Explorer Mac...would also work in Explorer 6 Strict, Mozilla and Safari
- xScroll = document.body.offsetWidth;
- yScroll = document.body.offsetHeight;
- }
-
- var windowWidth, windowHeight;
- if (self.innerHeight) { // all except Explorer
- windowWidth = self.innerWidth;
- windowHeight = self.innerHeight;
- } else if (document.documentElement && document.documentElement.clientHeight) { // Explorer 6 Strict Mode
- windowWidth = document.documentElement.clientWidth;
- windowHeight = document.documentElement.clientHeight;
- } else if (document.body) { // other Explorers
- windowWidth = document.body.clientWidth;
- windowHeight = document.body.clientHeight;
- }
-
- // for small pages with total height less then height of the viewport
- if(yScroll < windowHeight){
- pageHeight = windowHeight;
- } else {
- pageHeight = yScroll;
- }
-
- // for small pages with total width less then width of the viewport
- if(xScroll < windowWidth){
- pageWidth = windowWidth;
- } else {
- pageWidth = xScroll;
- }
-
-
- arrayPageSize = new Array(pageWidth,pageHeight,windowWidth,windowHeight)
- return arrayPageSize;
-}
-
-
-//
-// pause(numberMillis)
-// Pauses code execution for specified time. Uses busy code, not good.
-// Code from http://www.faqts.com/knowledge_base/view.phtml/aid/1602
-//
-function pause(numberMillis) {
- var now = new Date();
- var exitTime = now.getTime() + numberMillis;
- while (true) {
- now = new Date();
- if (now.getTime() > exitTime)
- return;
- }
-}
-
-//
-// getKey(key)
-// Gets keycode. If 'x' is pressed then it hides the lightbox.
-//
-
-function getKey(e){
- if (e == null) { // ie
- keycode = event.keyCode;
- } else { // mozilla
- keycode = e.which;
- }
- key = String.fromCharCode(keycode).toLowerCase();
-
- if(key == 'x'){ hideLightbox(); }
-}
-
-
-//
-// listenKey()
-//
-function listenKey () { document.onkeypress = getKey; }
-
-
-//
-// showLightbox()
-// Preloads images. Pleaces new image in lightbox then centers and displays.
-//
-function showLightbox(objLink)
-{
- // prep objects
- var objOverlay = document.getElementById('overlay');
- var objLightbox = document.getElementById('lightbox');
- var objCaption = document.getElementById('lightboxCaption');
- var objImage = document.getElementById('lightboxImage');
- var objLoadingImage = document.getElementById('loadingImage');
- var objLightboxDetails = document.getElementById('lightboxDetails');
-
-
- var arrayPageSize = getPageSize();
- var arrayPageScroll = getPageScroll();
-
- // center loadingImage if it exists
- if (objLoadingImage) {
- objLoadingImage.style.top = (arrayPageScroll[1] + ((arrayPageSize[3] - 35 - objLoadingImage.height) / 2) + 'px');
- objLoadingImage.style.left = (((arrayPageSize[0] - 20 - objLoadingImage.width) / 2) + 'px');
- objLoadingImage.style.display = 'block';
- }
-
- // set height of Overlay to take up whole page and show
- objOverlay.style.height = (arrayPageSize[1] + 'px');
- objOverlay.style.display = 'block';
-
- // preload image
- imgPreload = new Image();
-
- imgPreload.onload=function(){
- objImage.src = objLink.href;
-
- // center lightbox and make sure that the top and left values are not negative
- // and the image placed outside the viewport
- var lightboxTop = arrayPageScroll[1] + ((arrayPageSize[3] - 35 - imgPreload.height) / 2);
- var lightboxLeft = ((arrayPageSize[0] - 20 - imgPreload.width) / 2);
+/**************************************************************
+
+ Script : Lightbox
+ Version : 1.5
+ Authors : Samuel Birch
+ Desc : Extended version of Slimbox
+ Licence : Open Source MIT Licence
+
+**************************************************************/
+
+var Lightbox = {
+
+ init: function(options){
+ this.options = Object.extend({
+ resizeDuration: 400,
+ resizeTransition: Fx.Transitions.sineInOut,
+ initialWidth: 250,
+ initialHeight: 250,
+ animateCaption: {In:true,Out:true},
+ container: document.body,
+ showControls: false,
+ showNumbers: true,
+ descriptions: false,
+ opacity: 0.8
+ }, 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(this.options.container);
+
+ 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(this.options.container);
+ this.image = new Element('div').setProperty('id', 'lbImage').injectInside(this.center);
- objLightbox.style.top = (lightboxTop < 0) ? "0px" : lightboxTop + "px";
- objLightbox.style.left = (lightboxLeft < 0) ? "0px" : lightboxLeft + "px";
-
-
- objLightboxDetails.style.width = imgPreload.width + 'px';
+ this.bottomContainer = new Element('div').setProperty('id', 'lbBottomContainer').setStyle('display', 'none').injectInside(this.options.container);
+ this.bottom = new Element('div').setProperty('id', 'lbBottom').injectInside(this.bottomContainer);
- if(objLink.getAttribute('title')){
- objCaption.style.display = 'block';
- //objCaption.style.width = imgPreload.width + 'px';
- objCaption.innerHTML = objLink.getAttribute('title');
- } else {
- objCaption.style.display = 'none';
+ if(this.options.showControls){
+ this.controlDiv = new Element('div').setProperty('id','lbControls').injectInside(this.bottom);
+ }else{
+ this.controlDiv = this.image;
}
-
- // A small pause between the image loading and displaying is required with IE,
- // this prevents the previous image displaying for a short burst causing flicker.
- if (navigator.appVersion.indexOf("MSIE")!=-1){
- pause(250);
- }
-
- if (objLoadingImage) { objLoadingImage.style.display = 'none'; }
-
- // Hide select boxes as they will 'peek' through the image in IE
- selects = document.getElementsByTagName("select");
- for (i = 0; i != selects.length; i++) {
- selects[i].style.visibility = "hidden";
- }
+ this.prevLink = new Element('a').setProperties({id: 'lbPrevLink', href: '#'}).setStyle('display', 'none').injectInside(this.controlDiv);
+ this.nextLink = this.prevLink.clone().setProperty('id', 'lbNextLink').injectInside(this.controlDiv);
+ this.prevLink.onclick = this.previous.bind(this);
+ this.nextLink.onclick = this.next.bind(this);
-
- objLightbox.style.display = 'block';
-
- // After image is loaded, update the overlay height as the new image might have
- // increased the overall page height.
- arrayPageSize = getPageSize();
- objOverlay.style.height = (arrayPageSize[1] + 'px');
+ this.closeButton = new Element('a').setProperties({id: 'lbCloseLink', href: '#'}).injectInside(this.bottom)
+ this.closeButton.onclick = this.overlay.onclick = this.close.bind(this);
- // Check for 'x' keypress
- listenKey();
-
- return false;
- }
-
- imgPreload.src = objLink.href;
-
-}
-
-
-
-
-
-//
-// hideLightbox()
-//
-function hideLightbox()
-{
- // get objects
- objOverlay = document.getElementById('overlay');
- objLightbox = document.getElementById('lightbox');
-
- // hide lightbox and overlay
- objOverlay.style.display = 'none';
- objLightbox.style.display = 'none';
-
- // make select boxes visible
- selects = document.getElementsByTagName("select");
- for (i = 0; i != selects.length; i++) {
- selects[i].style.visibility = "visible";
- }
-
- // disable keypress listener
- document.onkeypress = '';
-}
-
+ this.caption = new Element('div').setProperty('id', 'lbCaption').injectInside(this.bottom);
+ if(this.options.descriptions != false){
+ this.options.descriptions = $$(this.options.descriptions);
+ this.description = new Element('div').setProperty('id', 'lbDescription').injectInside(this.bottom);
+ }
+ if(this.options.showNumbers){
+ 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();
+ },
-//
-// initLightbox()
-// Function runs on window load, going through link tags looking for rel="lightbox".
-// These links receive onclick events that enable the lightbox display for their targets.
-// The function also inserts html markup at the top of the page which will be used as a
-// container for the overlay pattern and the inline image.
-//
-function initLightbox()
-{
+ click: function(link){
- if (!document.getElementsByTagName){ return; }
- var anchors = document.getElementsByTagName("a");
-
- // loop through all anchor tags
- for (var i=0; i<anchors.length; i++){
- var anchor = anchors[i];
-
- if (anchor.getAttribute("href") && (anchor.getAttribute("rel") == "lightbox")){
- anchor.onclick = function () {showLightbox(this); return false;}
+ this.options.descriptions.each(function(el,i){
+ if(el.hasClass(link.id)){
+ this.linkLoc = i;
+ }
+ },this);
+
+ 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.window = {};
+ this.window.height = window.getScrollHeight();
+ this.window.width = window.getScrollWidth();
+ this.window.top = window.getScrollTop();
+ this.window.left = window.getScrollLeft();
+ this.center.setStyles({top: this.top+'px', display: ''});
+ this.fx.overlay.start(this.options.opacity);
+ return this.changeImage(imageNum);
+ },
+
+ position: function(){
+ if(this.options.container == document.body){
+ var h = window.getScrollHeight()+'px';
+ var w = window.getScrollWidth()+'px';
+ this.overlay.setStyles({top: '0px', height: h, width: w});
+ }else{
+ var myCoords = this.options.container.getCoordinates();
+ this.overlay.setStyles({
+ top: myCoords.top+'px',
+ height: myCoords.height+'px',
+ left: myCoords.left+'px',
+ width: myCoords.width+'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();
}
- }
-
- // the rest of this code inserts html at the top of the page that looks like this:
- //
- // <div id="overlay">
- // <a href="#" onclick="hideLightbox(); return false;"><img id="loadingImage" /></a>
- // </div>
- // <div id="lightbox">
- // <a href="#" onclick="hideLightbox(); return false;" title="Click anywhere to close image">
- // <img id="closeButton" />
- // <img id="lightboxImage" />
- // </a>
- // <div id="lightboxDetails">
- // <div id="lightboxCaption"></div>
- // <div id="keyboardMsg"></div>
- // </div>
- // </div>
-
- var objBody = document.getElementsByTagName("body").item(0);
-
- // create overlay div and hardcode some functional styles (aesthetic styles are in CSS file)
- var objOverlay = document.createElement("div");
- objOverlay.setAttribute('id','overlay');
- objOverlay.onclick = function () {hideLightbox(); return false;}
- objOverlay.style.display = 'none';
- objOverlay.style.position = 'absolute';
- objOverlay.style.top = '0';
- objOverlay.style.left = '0';
- objOverlay.style.zIndex = '90';
- objOverlay.style.width = '100%';
- objBody.insertBefore(objOverlay, objBody.firstChild);
-
- var arrayPageSize = getPageSize();
- var arrayPageScroll = getPageScroll();
-
- // preload and create loader image
- var imgPreloader = new Image();
-
- // if loader image found, create link to hide lightbox and create loadingimage
- imgPreloader.onload=function(){
-
- var objLoadingImageLink = document.createElement("a");
- objLoadingImageLink.setAttribute('href','#');
- objLoadingImageLink.onclick = function () {hideLightbox(); return false;}
- objOverlay.appendChild(objLoadingImageLink);
+ },
+
+ previous: function(){
+ this.linkLoc --;
+ return this.changeImage(this.activeImage-1);
+ },
+
+ next: function(){
+ this.linkLoc ++;
+ 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;
+ if(this.options.animateCaption.In && this.bottom.offsetHeight){
+ this.prevLink.style.display = this.nextLink.style.display = 'none';
+ this.bottom.effect('margin-top', {duration: 300, onComplete: this.loadImage.bind(this)}).start(-this.bottom.offsetHeight);
+ }else{
+ this.bottomContainer.style.display = this.prevLink.style.display = this.nextLink.style.display = 'none';
+ this.loadImage();
+ }
+ this.fx.image.hide();
+ this.center.className = 'lbLoading';
- var objLoadingImage = document.createElement("img");
- objLoadingImage.src = incPrefix + loadingImage;
- objLoadingImage.setAttribute('id','loadingImage');
- objLoadingImage.style.position = 'absolute';
- objLoadingImage.style.zIndex = '150';
- objLoadingImageLink.appendChild(objLoadingImage);
-
- imgPreloader.onload=function(){}; // clear onLoad, as IE will flip out w/animated gifs
-
- return false;
- }
-
- imgPreloader.src = incPrefix + loadingImage;
-
- // create lightbox div, same note about styles as above
- var objLightbox = document.createElement("div");
- objLightbox.setAttribute('id','lightbox');
- objLightbox.style.display = 'none';
- objLightbox.style.position = 'absolute';
- objLightbox.style.zIndex = '100';
- objBody.insertBefore(objLightbox, objOverlay.nextSibling);
-
- // create link
- var objLink = document.createElement("a");
- objLink.setAttribute('href','#');
- objLink.setAttribute('title','Click to close');
- objLink.onclick = function () {hideLightbox(); return false;}
- objLightbox.appendChild(objLink);
-
- // preload and create close button image
- var imgPreloadCloseButton = new Image();
-
- // if close button image found,
- imgPreloadCloseButton.onload=function(){
-
- var objCloseButton = document.createElement("img");
- objCloseButton.src = incPrefix + closeButton;
- objCloseButton.setAttribute('id','closeButton');
- objCloseButton.style.position = 'absolute';
- objCloseButton.style.zIndex = '200';
- objLink.appendChild(objCloseButton);
-
return false;
- }
-
- imgPreloadCloseButton.src = incPrefix + closeButton;
-
- // create image
- var objImage = document.createElement("img");
- objImage.setAttribute('id','lightboxImage');
- objLink.appendChild(objImage);
+ },
- // create details div, a container for the caption and keyboard message
- var objLightboxDetails = document.createElement("div");
- objLightboxDetails.setAttribute('id','lightboxDetails');
- objLightbox.appendChild(objLightboxDetails);
-
- // create caption
- var objCaption = document.createElement("div");
- objCaption.setAttribute('id','lightboxCaption');
- objCaption.style.display = 'none';
- objLightboxDetails.appendChild(objCaption);
-
- // create keyboard message
- var objKeyboardMsg = document.createElement("div");
- objKeyboardMsg.setAttribute('id','keyboardMsg');
- objKeyboardMsg.innerHTML = 'press <kbd>x</kbd> to close';
- objLightboxDetails.appendChild(objKeyboardMsg);
-
-
-}
-
-
-
-
-//
-// addLoadEvent()
-// Adds event to window.onload without overwriting currently assigned onload functions.
-// Function found at Simon Willison's weblog - http://simon.incutio.com/
-//
-function addLoadEvent(func)
-{
- var oldonload = window.onload;
- if (typeof window.onload != 'function'){
- window.onload = func;
- } else {
- window.onload = function(){
- oldonload();
- func();
+ loadImage: function(){
+ this.preload = new Image();
+ this.preload.onload = this.nextEffect.bind(this);
+ this.preload.src = this.images[this.activeImage][0];
+ },
+
+ 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';
+ if(this.options.showControls){
+ this.image.style.height = this.preload.height+'px';
+ }else{
+ this.image.style.height = this.prevLink.style.height = this.nextLink.style.height = this.preload.height+'px';
+ }
+
+ this.caption.setHTML(this.images[this.activeImage][1] || '');
+ if(this.options.descriptions != false){
+ if(this.description.getFirst()){this.description.getFirst().remove()};
+ var cl = this.options.descriptions[this.linkLoc].clone();
+ cl.setStyle('display', 'block').injectInside(this.description);
+ }
+ if(this.options.showNumbers){
+ 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);
+ var extra = this.caption.getStyle('height').toInt();
+ if(this.options.descriptions != false){extra += this.description.getStyle('height').toInt()}
+ if(this.options.showControls){extra += this.controlDiv.getStyle('height').toInt()}
+ if(this.options.showNumbers){extra += this.number.getStyle('height').toInt()}
+ var num = (extra-(this.closeButton.getStyle('height').toInt()*2));
+ if(num < 0){num=0}
+ this.closeButton.setStyle('marginTop', num+'px');
+ if(this.activeImage != 0) this.prevLink.style.display = '';
+ if(this.activeImage != (this.images.length - 1)) this.nextLink.style.display = '';
+ break;
+ case 4:
+ if (this.options.animateCaption.Out){
+ this.fx.bottom.set(-this.bottom.offsetHeight);
+ this.bottomContainer.style.height = '';
+ this.fx.bottom.start(0);
+ break;
+ }
+ this.bottomContainer.style.height = '';
+ case 5:
+ 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);
+ this.overlay.setStyles({height: this.window.height+'px', width: this.window.width+'px'});
+ return false;
}
-}
-
+};
+/*************************************************************/
-addLoadEvent(initLightbox); // run initLightbox onLoad
projects / mkgallery.git / commitdiff