my goal is that the image container and image size will be set to a constant width while keeping the correct ,aspect ratio
even when set inside an iframe (facebook iframe)
i didnt find a plugin for this
any help would be appreciated
the lightbox js
// -----------------------------------------------------------------------------------
//
// Lightbox v2.04
// by Lokesh Dhakar - http://www.lokeshdhakar.com
// Last Modification: 2/9/08
//
// For more information, visit:
// http://lokeshdhakar.com/projects/lightbox2/
//
// Modification by Fabian Lange - blog.hma-info.de
// - Integration of automatic resize from Michael R. Bagnall - elusivemind.net & Sebastien Grosjean - ZenCocoon.com
// - do not display caption of previous image if new image has none
// - moved opera hack to resolve disortion in FireFox
// - readded window sizes to getPageSize()
//
// Licensed under the Creative Commons Attribution 2.5 License - http://creativecommons.org/licenses/by/2.5/
// - Free for use in both personal and commercial projects
// - Attribution requires leaving author name, author link, and the license info intact.
//
// Thanks: Scott Upton(uptonic.com), Peter-Paul Koch(quirksmode.com), and Thomas Fuchs(mir.aculo.us) for ideas, libs, and snippets.
// Artemy Tregubenko (arty.name) for cleanup and help in updating to latest ver of proto-aculous.
//
// -----------------------------------------------------------------------------------
/*
Table of Contents
-----------------
Configuration
Lightbox Class Declaration
- initialize()
- updateImageList()
- start()
- changeImage()
- adjustImageSize()
- resizeImageContainer()
- showImage()
- updateDetails()
- updateNav()
- enableKeyboardNav()
- disableKeyboardNav()
- keyboardAction()
- preloadNeighborImages()
- getPageSize()
- end()
Function Calls
- document.observe()
*/
// -----------------------------------------------------------------------------------
//
// Configurationl
//
LightboxOptions = Object.extend({
fileLoadingImage: '/images/lightbox/loading.gif',
fileBottomNavCloseImage: '/images/lightbox/closelabel.gif',
overlayOpacity: 0.7, // controls transparency of shadow overlay
animate: true, // toggles resizing animations
resizeSpeed: 8, // controls the speed of the image resizing animations (1=slowest and 10=fastest)
borderSize: 10, //if you adjust the padding in the CSS, you will need to update this variable
featBrowser: false, // set it to true or false to choose to auto-adjust the maximum size to the browser
breathingSize: 50, // control the minimum space around the image box
// When grouping images this is used to write: Image # of #.
// Change it for non-english localization
labelImage: "Bild",
labelOf: "von"
}, window.LightboxOptions || {});
// -----------------------------------------------------------------------------------
var Lightbox = Class.create();
Lightbox.prototype = {
imageArray: [],
activeImage: undefined,
// initialize()
// Constructor runs on completion of the DOM loading. Calls updateImageList and then
// the function inserts html at the bottom of the page which is used to display the shadow
// overlay and the image container.
//
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; // shadow fade in/out duration
// When Lightbox starts it will resize itself from 250 by 250 to the current image dimension.
// If animations are turned off, it will be hidden as to prevent a flicker of a
// white 250 by 250 box.
var size = (LightboxOptions.animate ? 250 : 1) + 'px';
// Code inserts html at the bottom of the page that looks similar to this:
//
// <div id="overlay"></div>
// <div id="lightbox">
// <div id="outerImageContainer">
// <div id="imageContainer">
// <img id="lightboxImage">
// <div style="" id="hoverNav">
// <a href="#" id="prevLink"></a>
// <a href="#" id="nextLink"></a>
// </div>
// <div id="loading">
// <a href="#" id="loadingLink">
// <img src="images/loading.gif">
// </a>
// </div>
// </div>
// </div>
// <div id="imageDataContainer">
// <div id="imageData">
// <div id="imageDetails">
// <span id="caption"></span>
// <span id="numberDisplay"></span>
// </div>
// <div id="bottomNav">
// <a href="#" id="bottomNavClose">
// <img src="images/close.gif">
// </a>
// </div>
// </div>
// </div>
// </div>
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()
// Loops through anchor tags looking for 'lightbox' references and applies onclick
// events to appropriate links. You can rerun after dynamically adding images w/ajax.
//
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()
// Display overlay and lightbox. If image is part of a set, add siblings to imageArray.
//
start: function(imageLink) {
$$('select', 'object', 'embed').each(function(node){ node.style.visibility = 'hidden' });
// stretch overlay to fill page and fade in
var arrayPageSize = this.getPageSize();
$('overlay').setStyle({height: arrayPageSize[3] + 'px' });
new Effect.Appear(this.overlay, { duration: this.overlayDuration, from: 0.0, to: LightboxOptions.overlayOpacity });
this.imageArray = [];
var imageNum = 0;
if ((imageLink.rel == 'lightbox')){
// if image is NOT part of a set, add single image to imageArray
this.imageArray.push([imageLink.href, imageLink.title]);
} else {
// if image is part of a set..
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++; }
}
// calculate top and left offset for the lightbox
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();
if (LightboxOptions.featBrowser == true) { Event.observe(window, 'resize', (function(e) {this.adjustImageSize(true); }).bind(this)); }
this.changeImage(imageNum);
},
//
// changeImage()
// Hide most elements and preload image in preparation for resizing image container.
//
changeImage: function(imageNum) {
this.activeImage = imageNum; // update global var
// hide elements during transition
if (LightboxOptions.animate) this.loading.show();
this.lightboxImage.hide();
this.hoverNav.hide();
this.prevLink.hide();
this.nextLink.hide();
this.imageDataContainer.hide();
this.numberDisplay.hide();
var imgPreloader = new Image();
// once image is preloaded, resize image container
imgPreloader.onload = (function(){
this.lightboxImage.src = this.imageArray[this.activeImage][0];
this.imageArray[this.activeImage][2] = imgPreloader.width;
this.imageArray[this.activeImage][3] = imgPreloader.height;
this.adjustImageSize(false);
}).bind(this);
imgPreloader.src = this.imageArray[this.activeImage][0];
},
//
// adjustImageSize()
// adjust image size if option featBrowser is set to true
//
adjustImageSize: function( recall ) {
// get image size
imgWidth = this.imageArray[this.activeImage][2];
imgHeight = this.imageArray[this.activeImage][3];
var arrayPageSize = this.getPageSize();
// adjust image size if featBrowser option is set to true
if (LightboxOptions.featBrowser == true) {
// calculate proportions
var imageProportion = imgWidth / imgHeight;
var winProportion = arrayPageSize[2] / arrayPageSize[3];
if (imageProportion > winProportion) {
// calculate max width base on page width
var maxWidth = arrayPageSize[2] - (LightboxOptions.borderSize * 4) - (LightboxOptions.breathingSize * 2);
var maxHeight = Math.round(maxWidth / imageProportion);
} else {
// calculate maw height base on page height
var maxHeight = arrayPageSize[3] - (LightboxOptions.borderSize * 5) - (arrayPageSize[3] / 15) - LightboxOptions.breathingSize;
var maxWidth = Math.round(maxHeight * imageProportion);
}
if (imgWidth > maxWidth || imgHeight > maxHeight) {
imgWidth = maxWidth;
imgHeight = maxHeight;
}
}
this.overlay.setStyle({ height: arrayPageSize[3] + 'px' });
this.lightboxImage.setStyle({ height: imgHeight + 'px', width: imgWidth + 'px'});
if (recall == true) {
this.outerImageContainer.setStyle({height: (imgHeight + (LightboxOptions.borderSize * 2)) + 'px', width: (imgWidth + (LightboxOptions.borderSize * 2)) + 'px'});
this.imageDataContainer.setStyle({ width: (imgWidth + (LightboxOptions.borderSize * 2)) + 'px' });
} else {
this.resizeImageContainer(imgWidth, imgHeight);
}
},
//
// resizeImageContainer()
//
resizeImageContainer: function(imgWidth, imgHeight) {
// get current width and height
var widthCurrent = this.outerImageContainer.getWidth();
var heightCurrent = this.outerImageContainer.getHeight();
// get new width and height
var widthNew = (imgWidth + LightboxOptions.borderSize * 2);
var heightNew = (imgHeight + LightboxOptions.borderSize * 2);
// scalars based on change from old to new
var xScale = (widthNew / widthCurrent) * 100;
var yScale = (heightNew / heightCurrent) * 100;
// calculate size difference between new and old image, and resize if necessary
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});
// if new and old image are same size and no scaling transition is necessary,
// do a quick pause to prevent image flicker.
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()
// Display image and begin preloading neighbors.
//
showImage: function(){
this.loading.hide();
new Effect.Appear(this.lightboxImage, {
duration: this.resizeDuration,
queue: 'end',
afterFinish: (function(){ this.updateDetails(); }).bind(this)
});
this.preloadNeighborImages();
},
//
// updateDetails()
// Display caption, image number, and bottom nav.
//
updateDetails: function() {
this.caption.update(this.imageArray[this.activeImage][1] ? this.imageArray[this.activeImage][1] : "").show();
// if image is part of set display 'Image x of x'
if (this.imageArray.length > 1){
this.numberDisplay.update( LightboxOptions.labelImage + ' ' + (this.activeImage + 1) + ' ' + LightboxOptions.labelOf + ' ' + this.imageArray.length).show();
}
//opera 9 hack moved here
this.imageDataContainer.setStyle({opacity: .0001});
this.imageDataContainer.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() {
this.updateNav();
}).bind(this)
}
);
},
//
// updateNav()
// Display appropriate previous and next hover navigation.
//
updateNav: function() {
this.hoverNav.show();
// if not first image in set, display prev image button
if (this.activeImage > 0) this.prevLink.show();
// if not last image in set, display next image button
if (this.activeImage < (this.imageArray.length - 1)) this.nextLink.show();
this.enableKeyboardNav();
},
//
// enableKeyboardNav()
//
enableKeyboardNav: function() {
document.observe('keydown', this.keyboardAction);
},
//
// disableKeyboardNav()
//
disableKeyboardNav: function() {
document.stopObserving('keydown', this.keyboardAction);
},
//
// keyboardAction()
//
keyboardAction: function(event) {
var keycode = event.keyCode;
var escapeKey;
if (event.DOM_VK_ESCAPE) { // mozilla
escapeKey = event.DOM_VK_ESCAPE;
} else { // ie
escapeKey = 27;
}
var key = String.fromCharCode(keycode).toLowerCase();
if (key.match(/x|o|c/) || (keycode == escapeKey)){ // close lightbox
this.end();
} else if ((key == 'p') || (keycode == 37)){ // display previous image
if (this.activeImage != 0){
this.disableKeyboardNav();
this.changeImage(this.activeImage - 1);
}
} else if ((key == 'n') || (keycode == 39)){ // display next image
if (this.activeImage != (this.imageArray.length - 1)){
this.disableKeyboardNav();
this.changeImage(this.activeImage + 1);
}
}
},
//
// preloadNeighborImages()
// Preload previous and next images.
//
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()
//
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()
//
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){ // 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
if(document.documentElement.clientWidth){
windowWidth = document.documentElement.clientWidth;
} else {
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 = xScroll;
} else {
pageWidth = windowWidth;
}
return [pageWidth,pageHeight,windowWidth,windowHeight];
}
}
document.observe('dom:loaded', function () { new Lightbox(); });
my goal is that the image container and image size will be set to a constant width while keeping the correct ,aspect ratio even when set inside an iframe (facebook iframe) i didnt find a plugin for this any help would be appreciated the lightbox js // ----------------------------------------------------------------------------------- // // Lightbox v2.04 // by Lokesh Dhakar - http://www.lokeshdhakar.com // Last Modification: 2/9/08 // // For more information, visit: // http://lokeshdhakar.com/projects/lightbox2/ // // Modification by Fabian Lange - blog.hma-info.de // - Integration of automatic resize from Michael R. Bagnall - elusivemind.net & Sebastien Grosjean - ZenCocoon.com // - do not display caption of previous image if new image has none // - moved opera hack to resolve disortion in FireFox // - readded window sizes to getPageSize() // // Licensed under the Creative Commons Attribution 2.5 License - http://creativecommons.org/licenses/by/2.5/ // - Free for use in both personal and commercial projects // - Attribution requires leaving author name, author link, and the license info intact. // // Thanks: Scott Upton(uptonic.com), Peter-Paul Koch(quirksmode.com), and Thomas Fuchs(mir.aculo.us) for ideas, libs, and snippets. // Artemy Tregubenko (arty.name) for cleanup and help in updating to latest ver of proto-aculous. // // ----------------------------------------------------------------------------------- /* Table of Contents ----------------- Configuration Lightbox Class Declaration - initialize() - updateImageList() - start() - changeImage() - adjustImageSize() - resizeImageContainer() - showImage() - updateDetails() - updateNav() - enableKeyboardNav() - disableKeyboardNav() - keyboardAction() - preloadNeighborImages() - getPageSize() - end() Function Calls - document.observe() */ // ----------------------------------------------------------------------------------- // // Configurationl // LightboxOptions = Object.extend({ fileLoadingImage: '/images/lightbox/loading.gif', fileBottomNavCloseImage: '/images/lightbox/closelabel.gif', overlayOpacity: 0.7, // controls transparency of shadow overlay animate: true, // toggles resizing animations resizeSpeed: 8, // controls the speed of the image resizing animations (1=slowest and 10=fastest) borderSize: 10, //if you adjust the padding in the CSS, you will need to update this variable featBrowser: false, // set it to true or false to choose to auto-adjust the maximum size to the browser breathingSize: 50, // control the minimum space around the image box // When grouping images this is used to write: Image # of #. // Change it for non-english localization labelImage: "Bild", labelOf: "von" }, window.LightboxOptions || {}); // ----------------------------------------------------------------------------------- var Lightbox = Class.create(); Lightbox.prototype = { imageArray: [], activeImage: undefined, // initialize() // Constructor runs on completion of the DOM loading. Calls updateImageList and then // the function inserts html at the bottom of the page which is used to display the shadow // overlay and the image container. // 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; // shadow fade in/out duration // When Lightbox starts it will resize itself from 250 by 250 to the current image dimension. // If animations are turned off, it will be hidden as to prevent a flicker of a // white 250 by 250 box. var size = (LightboxOptions.animate ? 250 : 1) + 'px'; // Code inserts html at the bottom of the page that looks similar to this: // // <div id="overlay"></div> // <div id="lightbox"> // <div id="outerImageContainer"> // <div id="imageContainer"> // <img id="lightboxImage"> // <div style="" id="hoverNav"> // <a href="#" id="prevLink"></a> // <a href="#" id="nextLink"></a> // </div> // <div id="loading"> // <a href="#" id="loadingLink"> // <img src="images/loading.gif"> // </a> // </div> // </div> // </div> // <div id="imageDataContainer"> // <div id="imageData"> // <div id="imageDetails"> // <span id="caption"></span> // <span id="numberDisplay"></span> // </div> // <div id="bottomNav"> // <a href="#" id="bottomNavClose"> // <img src="images/close.gif"> // </a> // </div> // </div> // </div> // </div> 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() // Loops through anchor tags looking for 'lightbox' references and applies onclick // events to appropriate links. You can rerun after dynamically adding images w/ajax. // 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() // Display overlay and lightbox. If image is part of a set, add siblings to imageArray. // start: function(imageLink) { $$('select', 'object', 'embed').each(function(node){ node.style.visibility = 'hidden' }); // stretch overlay to fill page and fade in var arrayPageSize = this.getPageSize(); $('overlay').setStyle({height: arrayPageSize[3] + 'px' }); new Effect.Appear(this.overlay, { duration: this.overlayDuration, from: 0.0, to: LightboxOptions.overlayOpacity }); this.imageArray = []; var imageNum = 0; if ((imageLink.rel == 'lightbox')){ // if image is NOT part of a set, add single image to imageArray this.imageArray.push([imageLink.href, imageLink.title]); } else { // if image is part of a set.. 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++; } } // calculate top and left offset for the lightbox 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(); if (LightboxOptions.featBrowser == true) { Event.observe(window, 'resize', (function(e) {this.adjustImageSize(true); }).bind(this)); } this.changeImage(imageNum); }, // // changeImage() // Hide most elements and preload image in preparation for resizing image container. // changeImage: function(imageNum) { this.activeImage = imageNum; // update global var // hide elements during transition if (LightboxOptions.animate) this.loading.show(); this.lightboxImage.hide(); this.hoverNav.hide(); this.prevLink.hide(); this.nextLink.hide(); this.imageDataContainer.hide(); this.numberDisplay.hide(); var imgPreloader = new Image(); // once image is preloaded, resize image container imgPreloader.onload = (function(){ this.lightboxImage.src = this.imageArray[this.activeImage][0]; this.imageArray[this.activeImage][2] = imgPreloader.width; this.imageArray[this.activeImage][3] = imgPreloader.height; this.adjustImageSize(false); }).bind(this); imgPreloader.src = this.imageArray[this.activeImage][0]; }, // // adjustImageSize() // adjust image size if option featBrowser is set to true // adjustImageSize: function( recall ) { // get image size imgWidth = this.imageArray[this.activeImage][2]; imgHeight = this.imageArray[this.activeImage][3]; var arrayPageSize = this.getPageSize(); // adjust image size if featBrowser option is set to true if (LightboxOptions.featBrowser == true) { // calculate proportions var imageProportion = imgWidth / imgHeight; var winProportion = arrayPageSize[2] / arrayPageSize[3]; if (imageProportion > winProportion) { // calculate max width base on page width var maxWidth = arrayPageSize[2] - (LightboxOptions.borderSize * 4) - (LightboxOptions.breathingSize * 2); var maxHeight = Math.round(maxWidth / imageProportion); } else { // calculate maw height base on page height var maxHeight = arrayPageSize[3] - (LightboxOptions.borderSize * 5) - (arrayPageSize[3] / 15) - LightboxOptions.breathingSize; var maxWidth = Math.round(maxHeight * imageProportion); } if (imgWidth > maxWidth || imgHeight > maxHeight) { imgWidth = maxWidth; imgHeight = maxHeight; } } this.overlay.setStyle({ height: arrayPageSize[3] + 'px' }); this.lightboxImage.setStyle({ height: imgHeight + 'px', width: imgWidth + 'px'}); if (recall == true) { this.outerImageContainer.setStyle({height: (imgHeight + (LightboxOptions.borderSize * 2)) + 'px', width: (imgWidth + (LightboxOptions.borderSize * 2)) + 'px'}); this.imageDataContainer.setStyle({ width: (imgWidth + (LightboxOptions.borderSize * 2)) + 'px' }); } else { this.resizeImageContainer(imgWidth, imgHeight); } }, // // resizeImageContainer() // resizeImageContainer: function(imgWidth, imgHeight) { // get current width and height var widthCurrent = this.outerImageContainer.getWidth(); var heightCurrent = this.outerImageContainer.getHeight(); // get new width and height var widthNew = (imgWidth + LightboxOptions.borderSize * 2); var heightNew = (imgHeight + LightboxOptions.borderSize * 2); // scalars based on change from old to new var xScale = (widthNew / widthCurrent) * 100; var yScale = (heightNew / heightCurrent) * 100; // calculate size difference between new and old image, and resize if necessary 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}); // if new and old image are same size and no scaling transition is necessary, // do a quick pause to prevent image flicker. 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() // Display image and begin preloading neighbors. // showImage: function(){ this.loading.hide(); new Effect.Appear(this.lightboxImage, { duration: this.resizeDuration, queue: 'end', afterFinish: (function(){ this.updateDetails(); }).bind(this) }); this.preloadNeighborImages(); }, // // updateDetails() // Display caption, image number, and bottom nav. // updateDetails: function() { this.caption.update(this.imageArray[this.activeImage][1] ? this.imageArray[this.activeImage][1] : "").show(); // if image is part of set display 'Image x of x' if (this.imageArray.length > 1){ this.numberDisplay.update( LightboxOptions.labelImage + ' ' + (this.activeImage + 1) + ' ' + LightboxOptions.labelOf + ' ' + this.imageArray.length).show(); } //opera 9 hack moved here this.imageDataContainer.setStyle({opacity: .0001}); this.imageDataContainer.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() { this.updateNav(); }).bind(this) } ); }, // // updateNav() // Display appropriate previous and next hover navigation. // updateNav: function() { this.hoverNav.show(); // if not first image in set, display prev image button if (this.activeImage > 0) this.prevLink.show(); // if not last image in set, display next image button if (this.activeImage < (this.imageArray.length - 1)) this.nextLink.show(); this.enableKeyboardNav(); }, // // enableKeyboardNav() // enableKeyboardNav: function() { document.observe('keydown', this.keyboardAction); }, // // disableKeyboardNav() // disableKeyboardNav: function() { document.stopObserving('keydown', this.keyboardAction); }, // // keyboardAction() // keyboardAction: function(event) { var keycode = event.keyCode; var escapeKey; if (event.DOM_VK_ESCAPE) { // mozilla escapeKey = event.DOM_VK_ESCAPE; } else { // ie escapeKey = 27; } var key = String.fromCharCode(keycode).toLowerCase(); if (key.match(/x|o|c/) || (keycode == escapeKey)){ // close lightbox this.end(); } else if ((key == 'p') || (keycode == 37)){ // display previous image if (this.activeImage != 0){ this.disableKeyboardNav(); this.changeImage(this.activeImage - 1); } } else if ((key == 'n') || (keycode == 39)){ // display next image if (this.activeImage != (this.imageArray.length - 1)){ this.disableKeyboardNav(); this.changeImage(this.activeImage + 1); } } }, // // preloadNeighborImages() // Preload previous and next images. // 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() // 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() // 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){ // 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 if(document.documentElement.clientWidth){ windowWidth = document.documentElement.clientWidth; } else { 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 = xScroll; } else { pageWidth = windowWidth; } return [pageWidth,pageHeight,windowWidth,windowHeight]; } } document.observe('dom:loaded', function () { new Lightbox(); });