/**
* jQuery Lightbox Plugin (balupton edition) - Lightboxes for jQuery
* Copyright (C) 2008 Benjamin Arthur Lupton
* http://jquery.com/plugins/project/jquerylightbox_bal
*
* This file is part of jQuery Lightbox (balupton edition).
*
* jQuery Lightbox (balupton edition) is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* jQuery Lightbox (balupton edition) is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with jQuery Lightbox (balupton edition). If not, see .
*
* @name jquery_lightbox: jquery.lightbox.js
* @package jQuery Lightbox Plugin (balupton edition)
* @version 1.3.0-rc1
* @date August 24, 2008
* @category jQuery plugin
* @author Benjamin "balupton" Lupton {@link http://www.balupton.com}
* @copyright (c) 2008 Benjamin Arthur Lupton {@link http://www.balupton.com}
* @license GNU Affero General Public License - {@link http://www.gnu.org/licenses/agpl.html}
* @example Visit {@link http://jquery.com/plugins/project/jquerylightbox_bal} for more information.
*/
// Start of our jQuery Plugin
(function($)
{ // Create our Plugin function, with $ as the argument (we pass the jQuery object over later)
// More info: http://docs.jquery.com/Plugins/Authoring#Custom_Alias
// Debug
$.log = $.log || function ( options )
{ // Can we debug? - Do we have firebug
var con = null;
if ( typeof console !== 'undefined' && typeof $.log !== 'undefined' )
{ con = console; }
else if ( typeof window.console !== 'undefined' && typeof window.$.log !== 'undefined')
{ con = window.console; }
// Do the log
if ( con )
{ // Do we support arguments?
if ( typeof arguments !== 'undefined' && arguments.length > 1)
{ con.log(arguments); return arguments; }
else
{ con.log(options); return options; }
}
};
// Pre-Req
$.params_to_json = $.params_to_json || function ( params )
{ // Turns a params string or url into an array of params
// Adjust
params = String(params);
// Remove url if need be
params = params.substring(params.indexOf('?')+1);
// params = params.substring(params.indexOf('#')+1);
// Change + to %20, the %20 is fixed up later with the decode
params = params.replace(/\+/g, '%20');
// Do we have JSON string
if ( params.substring(0,1) === '{' && params.substring(params.length-1) === '}' )
{ // We have a JSON string
return eval(decodeURIComponent(params));
}
// We have a params string
params = params.split(/\&|\&\;/);
var json = {};
// We have params
for ( var i = 0, n = params.length; i < n; ++i )
{
// Adjust
var param = params[i] || null;
if ( param === null ) { continue; }
param = param.split('=');
if ( param === null ) { continue; }
// ^ We now have "var=blah" into ["var","blah"]
// Get
var key = param[0] || null;
if ( key === null ) { continue; }
if ( typeof param[1] === 'undefined' ) { continue; }
var value = param[1];
// ^ We now have the parts
// Fix
key = decodeURIComponent(key);
value = decodeURIComponent(value);
try {
// value can be converted
value = eval(value);
} catch ( e ) {
// value is a normal string
}
// Set
// console.log({'key':key,'value':value}, split);
var keys = key.split('.');
if ( keys.length === 1 )
{ // Simple
json[key] = value;
}
else
{ // Advanced
var path = '';
for ( ii in keys )
{ //
key = keys[ii];
path += '.'+key;
eval('json'+path+' = json'+path+' || {}');
}
eval('json'+path+' = value');
}
// ^ We now have the parts added to your JSON object
}
return json;
};
// Declare our class
$.LightboxClass = function ( )
{ // This is the handler for our constructor
this.construct();
};
// Extend jQuery elements for Lightbox
$.fn.lightbox = function ( options )
{ // Init a el for Lightbox
// Eg. $('#gallery a').lightbox();
// If need be: Instantiate $.LightboxClass to $.Lightbox
$.Lightbox = $.Lightbox || new $.LightboxClass();
// Handle IE6 appropriatly
if ( $.Lightbox.ie6 && !$.Lightbox.ie6_support )
{ // We are IE6 and we want to ignore
return this; // chain
}
// Establish options
options = $.extend({start:false,events:true,activationMethod:'click'} /* default options */, options);
// Get group
var group = $(this);
// Events?
if ( options.events )
{ // Add events
$(group).unbind().bind(options.activationMethod, function(){
// Get obj
var obj = $(this);
// Get rel
// var rel = $(obj).attr('rel');
// Init group
if ( !$.Lightbox.init($(obj)[0], group) ) {
return false;
}
// Display lightbox
$.Lightbox.start();
// Cancel href
return false;
});
if ( options.activationMethod != 'click' ) $(group).click(function(){ return false; })
// Add style
$(group).addClass('lightbox-enabled');
}
// Start?
if ( options.start )
{ // Start
// Get obj
var obj = $(this);
// Get rel
// var rel = $(obj).attr('rel');
// Init group
if ( !$.Lightbox.init($(obj)[0], group) )
{ return this; }
// Display lightbox
if ( !$.Lightbox.start() )
{ return this; }
}
// And chain
return this;
};
// Define our class
$.extend($.LightboxClass.prototype,
{ // Our LightboxClass definition
// -----------------
// Everyting to do with images
images: {
// -----------------
// Variables
// Our array of images
list:[], /* [ {
src: 'url to image',
link: 'a link to a page',
title: 'title of the image',
name: 'name of the image',
description: 'description of the image'
} ], */
// The current active image
image: false,
// -----------------
// Functions
prev: function ( image )
{ // Get previous image
// Get previous from current?
if ( typeof image === 'undefined' )
{ image = this.active();
if ( !image ) { return image; }
}
// Is there a previous?
if ( this.first(image) )
{ return false; }
// Get the previous
return this.get(image.index-1);
},
next: function ( image )
{ // Get next image
// Get next from current?
if ( typeof image === 'undefined' )
{ image = this.active();
if ( !image ) { return image; }
}
// Is there a next?
if ( this.last(image) )
{ return false; }
// Get the next
return this.get(image.index+1);
},
first: function ( image )
{ //
// Get the first image?
if ( typeof image === 'undefined' )
{ return this.get(0); }
// Are we the first?
return image.index === 0;
},
last: function ( image )
{ //
// Get the last image?
if ( typeof image === 'undefined' )
{ return this.get(this.size()-1); }
// Are we the last?
return image.index === this.size()-1;
},
single: function ( )
{ // Are we only one
return this.size() === 1;
},
size: function ( )
{ // How many images do we have
return this.list.length;
},
empty: function ( )
{ // Are we empty
return this.size() === 0;
},
clear: function ( )
{ // Clear image arrray
this.list = [];
this.image = false;
},
active: function ( image )
{ // Set or get the active image
// Use false to reset
// Get the active image?
if ( typeof image === 'undefined' )
{ return this.image; }
// Set the ative image
if ( image !== false )
{ // Make sure image exists
image = this.get(image);
if ( !image )
{ // Error
return image;
}
}
// Set the active image
this.image = image;
return true;
},
add: function ( obj )
{
// Do we need to recurse?
if ( obj[0] )
{ // We have a lot of images
for ( var i = 0; i < obj.length; i++ )
{ this.add(obj[i]); }
return true;
}
// Default image
// Try and create a image
var image = this.create(obj);
if ( !image ) { return image; }
// Set image index
image.index = this.size();
// Push image
this.list.push(image);
// Success
return true;
},
create: function ( obj )
{ // Create image
// Define
var image = { // default
src: '',
title: 'Untitled',
description: '',
name: '',
index: -1,
color: null,
width: null,
height: null,
image: true
};
// Create
if ( obj.image )
{ // Already a image, so copy over values
image.src = obj.src || image.src;
image.title = obj.title || image.title;
image.description = obj.description || image.description;
image.name = obj.name || image.name;
image.color = obj.color || image.color;
image.width = obj.width || image.width;
image.height = obj.height || image.height;
image.index = obj.index || image.index;
}
else if ( obj.tagName )
{ // We are an element
obj = $(obj);
if ( obj.attr('src') || obj.attr('href') )
{
image.src = obj.attr('src') || obj.attr('href');
image.title = obj.attr('title') || obj.attr('alt') || image.title;
image.name = obj.attr('name') || '';
image.color = obj.css('background-color');
// Extract description from title
var s = image.title.indexOf(': ');
if ( s > 0 )
{ // Description exists
image.description = image.title.substring(s+2) || image.description;
image.title = image.title.substring(0,s) || image.title;
}
}
else
{ // Unsupported element
image = false;
}
}
else
{ // Unknown
image = false;
}
if ( !image )
{ // Error
$.log('ERROR', 'We dont know what we have:', obj);
return false;
}
// Success
return image;
},
get: function ( image )
{ // Get the active, or specified image
// Establish image
if ( typeof image === 'undefined' || image === null )
{ // Get the active image
return this.active();
}
else
if ( typeof image === 'number' )
{ // We have a index
// Get image
image = this.list[image] || false;
}
else
{ // Create
image = this.create(image);
if ( !image ) { return false; }
// Find
var f = false;
for ( var i = 0; i < this.size(); i++ )
{
var c = this.list[i];
if ( c.src === image.src && c.title === image.title && c.description === image.description )
{ f = c; }
}
// Found?
image = f;
}
// Determine image
if ( !image )
{ // Image doesn't exist
$.log('ERROR', 'The desired image doesn\'t exist: ', image, this.list);
return false;
}
// Return image
return image;
},
debug: function ( )
{
return $.Lightbox.debug(arguments);
}
},
// -----------------
// Options
constructed: false,
src: null, // the source location of our js file
baseurl: null,
files: {
// If you are doing a repack with packer (http://dean.edwards.name/packer/) then append ".packed" onto the js and css files before you pack it.
js: {
lightbox: '/static/js/jquery.lightbox2.js',
colorBlend: '/static/js/jquery.colorblend.pack.js'
},
css: {
lightbox: '/static/css/jquery.lightbox2.css'
},
images: {
prev: '/static/img/lightbox/prev.gif',
next: '/static/img/lightbox/next.gif',
blank: '/static/img/blank.gif',
loading: '/static/img/lightbox/loading.gif'
}
},
text: {
// For translating
image: 'Image',
of: 'of',
close: 'Close X',
closeInfo: 'You can also click anywhere outside the image to close.',
download: 'Direct link to download the image.',
help: {
close: 'Click to close',
interact: 'Hover to interact'
},
about: {
text: 'jQuery Lightbox Plugin (balupton edition)',
title: 'Licenced under the GNU Affero General Public License.',
link: 'http://jquery.com/plugins/project/jquerylightbox_bal'
}
},
show_linkback: false,
keys: {
close: 'c',
prev: 'p',
next: 'n'
},
handlers: {
// For custom actions
show: null
},
opacity: 0.75,
padding: null, // if null - autodetect
speed: 750, // Duration of effect, milliseconds
rel: 'lightbox', // What to look for in the rels
auto_relify: true, // should we automaticly do the rels?
scroll: 'follow', // should the lightbox scroll with the page?
ie6: null, // are we ie6?
ie6_support: true, // have ie6 support
ie6_upgrade: true, // show ie6 upgrade message
colorBlend: null, // null - auto-detect, true - force, false - no
// names of the options that can be modified
options: ['ie6_support', 'ie6_upgrade', 'colorBlend', 'baseurl', 'files', 'text', 'show_linkback', 'keys', 'opacity', 'padding', 'speed', 'rel', 'auto_relify', 'scroll_with'],
// -----------------
// Functions
construct: function ( options )
{ // Construct our Lightbox
// -------------------
// Prepare
// Initial construct
var initial = typeof this.constructed === 'undefined' || this.constructed === false;
this.constructed = true;
// Perform domReady
var domReady = initial;
// Prepare options
options = $.extend({}, options);
// -------------------
// Handle files
// Add baseurl
if ( initial && (typeof options.files === 'undefined') )
{ // Load the files like default
// Get the src of the first script tag that includes our js file (with or without an appendix)
this.src = $('script[src*='+this.files.js.lightbox+']:first').attr('src');
// Make sure we found ourselves
if ( !this.src )
{ // We didn't
// $.log('WARNING', 'Lightbox was not able to find it\'s javascript script tag necessary for auto-inclusion.');
// We don't work with files anymore, so don't care for domReady
domReady = false;
}
else
{ // We found ourself
// The baseurl is the src up until the start of our js file
this.baseurl = this.src.substring(0, this.src.indexOf(this.files.js.lightbox));
// Apply baseurl to files
var me = this;
$.each(this.files, function(group, val){
$.each(this, function(file, val){
me.files[group][file] = me.baseurl+val;
});
});
delete me;
// Now as we have source, we may have more params
options = $.extend(options, $.params_to_json(this.src));
}
}
else
if ( typeof options.files === 'object' )
{ // We have custom files
var me = this;
$.each(options.files, function(group, val){
$.each(this, function(file, val){
this[file] = me.baseurl+val;
});
});
delete me;
}
else
{ // Don't have any files, so no need to perform domReady
domReady = false;
}
// -------------------
// Apply options
for ( i in this.options )
{ // Cycle through the options
var name = this.options[i];
if ( (typeof options[name] === 'object') && (typeof this[name] === 'object') )
{ // We have a group like text or files
this[name] = $.extend(this[name], options[name]);
}
else if ( typeof options[name] !== 'undefined' )
{ // We have that option, so apply it
this[name] = options[name];
}
}
// -------------------
// Figure out what to do
// Handle IE6
if ( initial && navigator.userAgent.indexOf('MSIE 6') >= 0 )
{ // Is IE6
this.ie6 = true;
}
else
{ // We are not IE6
this.ie6 = false;
}
// -------------------
// Handle our DOM
if ( domReady || typeof options.colorBlend !== 'undefined' || typeof options.files === 'object' || typeof options.text === 'object' || typeof options.show_linkback !== 'undefined' || typeof options.scroll_with !== 'undefined' )
{ // We have reason to handle the dom
$(function() {
// DOM is ready, so fire our DOM handler
$.Lightbox.domReady();
});
}
// -------------------
// Finish Up
// All good
return true;
},
domReady: function ( )
{
// -------------------
// Include resources
// Grab resources
var bodyEl = document.getElementsByTagName($.browser.safari ? 'head' : 'body')[0];
var stylesheets = this.files.css;
var scripts = this.files.js;
// Handle IE6 appropriatly
if ( this.ie6 && this.ie6_upgrade )
{ // Add the upgrade message
scripts.ie6 = 'http://www.savethedevelopers.org/say.no.to.ie.6.js';
}
// colorBlend
if ( this.colorBlend === true && typeof $.colorBlend === 'undefined' )
{ // Force colorBlend
this.colorBlend = true;
// Leave file in place to be loaded
}
else
{ // We either have colorBlend or we don't
this.colorBlend = typeof $.colorBlend !== 'undefined';
// Remove colorBlend file
delete scripts.colorBlend;
}
// Include stylesheets
for ( stylesheet in stylesheets )
{
var linkEl = document.createElement('link');
linkEl.type = 'text/css';
linkEl.rel = 'stylesheet';
linkEl.media = 'screen';
linkEl.href = stylesheets[stylesheet];
linkEl.id = 'lightbox-stylesheet-'+stylesheet.replace(/[^a-zA-Z0-9]/g, '');
$('#'+linkEl.id).remove();
bodyEl.appendChild(linkEl);
}
// Include javascripts
for ( script in scripts )
{
var scriptEl = document.createElement('script');
scriptEl.type = 'text/javascript';
scriptEl.src = scripts[script];
scriptEl.id = 'lightbox-script-'+script.replace(/[^a-zA-Z0-9]/g, '');
$('#'+scriptEl.id).remove();
bodyEl.appendChild(scriptEl);
}
// Cleanup
delete scripts;
delete stylesheets;
delete bodyEl;
// -------------------
// Append display
// Append markup
$('#lightbox,#lightbox-overlay').remove();
$('body').append('
');
// Update Boxes - for some crazy reason this has to be before the hide in safari and konqueror
this.resizeBoxes();
this.repositionBoxes();
// Hide
$('#lightbox,#lightbox-overlay,#lightbox-overlay-text-interact').hide();
// -------------------
// Browser specifics
// Handle IE6
if ( this.ie6 && this.ie6_support )
{ // Support IE6
// IE6 does not support fixed positioning so absolute it
// ^ This is okay as we disable scrolling
$('#lightbox-overlay').css({
position: 'absolute',
top: '0px',
left: '0px'
});
}
// -------------------
// Preload Images
// Cycle and preload
$.each(this.files.images, function()
{ // Proload the image
var preloader = new Image();
preloader.onload = function() {
preloader.onload = null;
preloader = null;
}; preloader.src = this;
});
// -------------------
// Apply events
// If the window resizes, act appropriatly
$(window).unbind().resize(function ()
{ // The window has been resized
$.Lightbox.resizeBoxes('resized');
});
// If the window scrolls, act appropriatly
if ( this.scroll === 'follow' )
{ // We want to
$(window).scroll(function ()
{ // The window has scrolled
$.Lightbox.repositionBoxes();
});
}
// Prev
$('#lightbox-nav-btnPrev').unbind().hover(function() { // over
$(this).css({ 'background' : 'url(' + $.Lightbox.files.images.prev + ') left 45% no-repeat' });
},function() { // out
$(this).css({ 'background' : 'transparent url(' + $.Lightbox.files.images.blank + ') no-repeat' });
}).click(function() {
$.Lightbox.showImage($.Lightbox.images.prev());
return false;
});
// Next
$('#lightbox-nav-btnNext').unbind().hover(function() { // over
$(this).css({ 'background' : 'url(' + $.Lightbox.files.images.next + ') right 45% no-repeat' });
},function() { // out
$(this).css({ 'background' : 'transparent url(' + $.Lightbox.files.images.blank + ') no-repeat' });
}).click(function() {
$.Lightbox.showImage($.Lightbox.images.next());
return false;
});
// Help
if ( this.show_linkback )
{ // Linkback exists so add handler
$('#lightbox-overlay-text-about a').click(function(){window.open($.Lightbox.text.about.link); return false;});
}
$('#lightbox-overlay-text-close').unbind().hover(
function(){
$('#lightbox-overlay-text-interact').fadeIn();
},
function(){
$('#lightbox-overlay-text-interact').fadeOut();
}
);
// Image link
$('#lightbox-caption-title').click(function(){window.open($(this).attr('href')); return false;});
// Assign close clicks
$('#lightbox-overlay, #lightbox, #lightbox-loading-link, #lightbox-btnClose').unbind().click(function() {
$.Lightbox.finish();
return false;
});
// -------------------
// Finish Up
// Relify
if ( this.auto_relify )
{ // We want to relify, no the user
this.relify();
}
// All good
return true;
},
relify: function ( )
{ // Create event
//
var groups = {};
var groups_n = 0;
var orig_rel = this.rel;
// Create the groups
$.each($('[@rel*='+orig_rel+']'), function(index, obj){
// Get the group
var rel = $(obj).attr('rel');
// Are we really a group
if ( rel === orig_rel )
{ // We aren't
rel = groups_n; // we are individual
}
// Does the group exist
if ( typeof groups[rel] === 'undefined' )
{ // Make the group
groups[rel] = [];
groups_n++;
}
// Append the image
groups[rel].push(obj);
});
// Lightbox groups
$.each(groups, function(index, group){
$(group).lightbox();
});
// Done
return true;
},
init: function ( image, images )
{ // Init a batch of lightboxes
// Establish images
if ( typeof images === 'undefined' )
{
images = image;
image = 0;
}
// Clear
this.images.clear();
// Add images
if ( !this.images.add(images) )
{ return false; }
// Do we need to bother
if ( this.images.empty() )
{ // No images
$.log('WARNING', 'Lightbox started, but no images: ', image, images);
return false;
}
// Set active
if ( !this.images.active(image) )
{ return false; }
// Done
return true;
},
start: function ( )
{ // Display the lightbox
// We are alive
this.visible = true;
// Adjust scrolling
if ( this.scroll === 'disable' )
{ //
$(document.body).css('overflow', 'hidden');
}
// Fix attention seekers
$('embed, object, select').css('visibility', 'hidden');//.hide(); - don't use this, give it a go, find out why!
// Resize the boxes appropriatly
this.resizeBoxes('general');
// Reposition the Boxes
this.repositionBoxes({'speed':0});
// Hide things
$('#lightbox-infoFooter').hide(); // we hide this here because it makes the display smoother
$('#lightbox-image,#lightbox-nav,#lightbox-nav-btnPrev,#lightbox-nav-btnNext,#lightbox-infoBox').hide();
// Display the boxes
$('#lightbox-overlay').css('opacity',this.opacity).fadeIn(400, function(){
// Show the lightbox
$('#lightbox').fadeIn(300);
// Display first image
if ( !$.Lightbox.showImage($.Lightbox.images.active()) )
{ $.Lightbox.finish(); return false; }
});
// All done
return true;
},
finish: function ( )
{ // Get rid of lightbox
// Hide lightbox
$('#lightbox').hide();
$('#lightbox-overlay').fadeOut(function() { $('#lightbox-overlay').hide(); });
// Fix attention seekers
$('embed, object, select').css({ 'visibility' : 'visible' });//.show();
// Kill active image
this.images.active(false);
// Adjust scrolling
if ( this.scroll === 'disable' )
{ //
$(document.body).css('overflow', 'visible');
}
// We are dead
this.visible = false;
},
resizeBoxes: function ( type )
{ // Resize the boxes
// Used on transition or window resize
// Resize Overlay
if ( type !== 'transition' )
{ // We don't care for transition
var $body = $(this.ie6 ? document.body : document);
$('#lightbox-overlay').css({
width: $body.width(),
height: $body.height()
});
delete $body;
}
// We no longer care if we are general
if ( type === 'general' )
{ // Done
return true;
}
// Get image
var image = this.images.active();
if ( !image || !image.width || !this.visible )
{ // No image or no visible lightbox, so we don't care
$.log('WARNING', 'A resize occured while no image or no lightbox...');
return false;
}
// Resize image box
// i:image, w:window, b:box, c:current, n:new, d:difference
// Get image dimensions
var iWidth = image.width;
var iHeight = image.height;
// Get window dimensions
var wWidth = $(window).width();
var wHeight = $(window).height();
// Check if we are in size
// Lightbox can take up 4/5 of size
var maxWidth = Math.floor(wWidth*(4/5));
var maxHeight = Math.floor(wHeight*(4/5));
var resizeRatio;
while ( iWidth > maxWidth || iHeight > maxHeight )
{ // We need to resize
if ( iWidth > maxWidth )
{ // Resize width, then height proportionally
resizeRatio = maxWidth/iWidth;
iWidth = maxWidth;
iHeight = Math.floor(iHeight*resizeRatio);
}
if ( iHeight > maxHeight )
{ // Resize height, then width proportionally
resizeRatio = maxHeight/iHeight;
iHeight = maxHeight;
iWidth = Math.floor(iWidth*resizeRatio);
}
}
// Get current width and height
var cWidth = $('#lightbox-imageBox').width();
var cHeight = $('#lightbox-imageBox').height();
// Get the width and height of the selected image plus the padding
// padding*2 for both sides (left+right || top+bottom)
var nWidth = (iWidth + (this.padding * 2));
var nHeight = (iHeight + (this.padding * 2));
// Diferences
var dWidth = cWidth - nWidth;
var dHeight = cHeight - nHeight;
// Set the overlay buttons height and the infobox width
// Other dimensions specified by CSS
$('#lightbox-nav-btnPrev,#lightbox-nav-btnNext').css('height', nHeight);
$('#lightbox-infoBox').css('width', nWidth);
// Handle final action
if ( type === 'transition' )
{ // We are transition
// Do we need to wait? (just a nice effect to counter the other
if ( dWidth === 0 && dHeight === 0 )
{ // We are the same size
this.pause(this.speed/3);
this.showImage(null, 3);
}
else
{ // We are not the same size
// Animate
$('#lightbox-image').width(iWidth).height(iHeight);
$('#lightbox-imageBox').animate({width: nWidth, height: nHeight}, this.speed, function ( ) { $.Lightbox.showImage(null, 3); } );
this.repositionBoxes({'nHeight':nHeight, 'speed':this.speed});
}
}
else
{ // We are a resize
// Animate Lightbox
$('#lightbox-image').animate({width:iWidth, height:iHeight}, this.speed);
$('#lightbox-imageBox').animate({width: nWidth, height: nHeight}, this.speed);
this.repositionBoxes({'nHeight':nHeight, 'speed':this.speed});
}
// Done
return true;
},
repositioning: false, // are we currently repositioning
reposition_failsafe: false, // failsafe
repositionBoxes: function ( options )
{
// Prepare
if ( this.repositioning )
{ // Already here
this.reposition_failsafe = true;
return null;
}
this.repositioning = true;
// Options
options = $.extend({}, options);
options.callback = options.callback || null;
options.speed = options.speed || 'slow';
// Get page scroll
var pageScroll = this.getPageScroll();
// Figure it out
// alert($(window).height()+"\n"+$(document.body).height()+"\n"+$(document).height());
// var nHeight = options.nHeight || parseInt($('#lightbox').height(),10) || $(document).height()/3;
var nHeight = options.nHeight || parseInt($('#lightbox').height(),10);
// Display lightbox in center
// var nTop = pageScroll.yScroll + ($(document.body).height() /*frame height*/ - nHeight) / 2.5;
var nTop = pageScroll.yScroll + ($(window).height() /*frame height*/ - nHeight) / 2.5;
var nLeft = pageScroll.xScroll;
// Animate
var css = {
left: nLeft,
top: nTop
};
if (options.speed) {
$('#lightbox').animate(css, 'slow', function(){
if ( $.Lightbox.reposition_failsafe )
{ // Fire again
$.Lightbox.repositioning = $.Lightbox.reposition_failsafe = false;
$.Lightbox.repositionBoxes(options);
}
else
{ // Done
$.Lightbox.repositioning = false;
if ( options.callback )
{ // Call the user callback
options.callback();
}
}
});
}
else
{
$('#lightbox').css(css);
if ( this.reposition_failsafe )
{ // Fire again
this.repositioning = this.reposition_failsafe = false;
this.repositionBoxes(options);
}
else
{ // Done
this.repositioning = false;
}
}
// Done
return true;
},
visible: false,
showImage: function ( image, step )
{
// Establish image
image = this.images.get(image);
if ( !image ) { return image; }
// Default step
step = step || 1;
// Split up below for jsLint compliance
var skipped_step_1 = step > 1 && this.images.active().src !== image.src;
var skipped_step_2 = step > 2 && $('#lightbox-image').attr('src') !== image.src;
if ( skipped_step_1 || skipped_step_2 )
{ // Force step 1
$.log('We wanted to skip a few steps: ', image, step, skipped_step_1, skipped_step_2);
step = 1;
}
// What do we need to do
switch ( step )
{
// ---------------------------------
// We need to preload
case 1:
// Disable keyboard nav
this.KeyboardNav_Disable();
// Show the loading image
$('#lightbox-loading').show();
// Hide things
$('#lightbox-image,#lightbox-nav,#lightbox-nav-btnPrev,#lightbox-nav-btnNext,#lightbox-infoBox').hide();
// Remove show info events
$('#lightbox-imageBox').unbind();
// ^ Why? Because otherwise when the image is changing, the info pops out, not good!
// Make the image the active image
if ( !this.images.active(image) ) { return false; }
// Check if we need to preload
if ( image.width && image.height )
{ // We don't
// Continue to next step
this.showImage(null, 2);
}
else
{ // We do
// Create preloader
var preloader = new Image();
// Set callback
preloader.onload = function()
{ // We have preloaded the image
// Update image with our new info
image.width = preloader.width;
image.height = preloader.height;
// Continue to next step
$.Lightbox.showImage(null, 2);
// Kill preloader
preloader.onload = null;
preloader = null;
};
// Start preload
preloader.src = image.src;
}
// Done
break;
// ---------------------------------
// Resize the container
case 2:
// Apply image changes
$('#lightbox-image').attr('src', image.src);
// Set container border (Moved here for Konqueror fix - Credits to Blueyed)
if ( typeof this.padding === 'undefined' || this.padding === null || isNaN(this.padding) )
{ // Autodetect
this.padding = parseInt($('#lightbox-imageContainer').css('padding-left'), 10) || parseInt($('#lightbox-imageContainer').css('padding'), 10) || 0;
}
// Use colorBlend?
if ( this.colorBlend )
{ // We have colorBlend
$('#lightbox-overlay').colorBlend([{
param: 'background-color',
fromColor: $('#lightbox-overlay').css('background-color'),
toColor: image.color,
cycles: 1,
isFade: false
}]);
}
// Resize boxes
this.resizeBoxes('transition');
// ^ contains callback to next step
// Done
break;
// ---------------------------------
// Display the image
case 3:
// Hide loading
$('#lightbox-loading').hide();
// Animate image
$('#lightbox-image').fadeIn(500, function() {$.Lightbox.showImage(null, 4); });
// Start the proloading of other images
this.preloadNeighbours();
// Fire custom handler show
if ( this.handlers.show !== null )
{ // Fire it
this.handlers.show(image);
}
// Done
break;
// ---------------------------------
// Set image info / Set navigation
case 4:
// ---------------------------------
// Set image info
// Hide and set image info
$('#lightbox-caption-title').html(image.title || 'Untitled').attr('href', image.src).addClass('noicon');
$('#lightbox-caption-seperator').html(image.description ? ': ' : '');
$('#lightbox-caption-description').html(image.description || ' ');
// If we have a set, display image position
if ( this.images.size() > 1 )
{ // Display
$('#lightbox-currentNumber').html(this.text.image + ' ' + ( image.index + 1 ) + ' ' + this.text.of + ' ' + this.images.size());
} else
{ // Empty
$('#lightbox-currentNumber').html(' ');
}
// ---------------------------------
// Info events
// Apply event
$('#lightbox-imageBox').unbind('mouseover').mouseover(function(){
$('#lightbox-infoBox').slideDown('fast');
});
// Apply event
$('#lightbox-infoBox').unbind('mouseover').mouseover(function(){
$('#lightbox-infoFooter').slideDown('fast');
});
// ---------------------------------
// Set navigation
// Instead to define this configuration in CSS file, we define here. And it's need to IE. Just.
$('#lightbox-nav-btnPrev, #lightbox-nav-btnNext').css({ 'background' : 'transparent url(' + this.files.images.blank + ') no-repeat' });
// If not first, show previous button
if ( !this.images.first(image) ) {
// Not first, show button
$('#lightbox-nav-btnPrev').show();
}
// If not last, show next button
if ( !this.images.last(image) ) {
// Not first, show button
$('#lightbox-nav-btnNext').show();
}
// Make navigation active / show it
$('#lightbox-nav').show();
// Enable keyboard navigation
this.KeyboardNav_Enable();
// Done
break;
// ---------------------------------
// Error handling
default:
$.log('ERROR', 'Don\'t know what to do: ', image, step);
return this.showImage(image, 1);
// break;
}
// All done
return true;
},
preloadNeighbours: function ( )
{ // Preload all neighbour images
// Do we need to do this?
if ( this.images.single() || this.images.empty() )
{ return true; }
// Get active image
var image = this.images.active();
if ( !image ) { return image; }
// Load previous
var prev = this.images.prev(image);
var objNext;
if ( prev ) {
objNext = new Image();
objNext.src = prev.src;
}
// Load next
var next = this.images.next(image);
if ( next ) {
objNext = new Image();
objNext.src = next.src;
}
},
// --------------------------------------------------
// Things we don't really care about
KeyboardNav_Enable: function ( ) {
$(document).keydown(function(objEvent) {
$.Lightbox.KeyboardNav_Action(objEvent);
});
},
KeyboardNav_Disable: function ( ) {
$(document).unbind();
},
KeyboardNav_Action: function ( objEvent ) {
// Prepare
objEvent = objEvent || window.event;
// Get the keycode
var keycode = objEvent.keyCode;
var escapeKey = objEvent.DOM_VK_ESCAPE /* moz */ || 27;
// Get key
var key = String.fromCharCode(keycode).toLowerCase();
// Close?
if ( key === this.keys.close || keycode === escapeKey )
{ return $.Lightbox.finish(); }
// Prev?
if ( key === this.keys.prev || keycode === 37 )
{ // We want previous
return $.Lightbox.showImage($.Lightbox.images.prev());
}
// Next?
if ( key === this.keys.next || keycode === 39 )
{ // We want next
return $.Lightbox.showImage($.Lightbox.images.next());
}
// Unknown
return true;
},
getPageScroll: function ( ) {
var xScroll, yScroll;
if (self.pageYOffset)
{ // Some browser
yScroll = self.pageYOffset;
xScroll = self.pageXOffset;
} else if (document.documentElement && document.documentElement.scrollTop)
{ // Explorer 6 Strict
yScroll = document.documentElement.scrollTop;
xScroll = document.documentElement.scrollLeft;
} else if (document.body)
{ // All other browsers
yScroll = document.body.scrollTop;
xScroll = document.body.scrollLeft;
}
var arrayPageScroll = {'xScroll':xScroll,'yScroll':yScroll};
return arrayPageScroll;
},
pause: function ( ms ) {
var date = new Date();
var curDate = null;
do { curDate = new Date(); }
while ( curDate - date < ms);
}
}); // We have finished extending/defining our LightboxClass
// --------------------------------------------------
// Finish up
// Instantiate
if ( typeof $.Lightbox === 'undefined' )
{ //
$.Lightbox = new $.LightboxClass();
}
// Finished definition
})(jQuery); // We are done with our plugin, so lets call it with jQuery as the argument
