app/assets/javascripts/galleria-1.4.2.js
/**
* Galleria v 1.4.2 2014-08-07
* http://galleria.io
*
* Licensed under the MIT license
* https://raw.github.com/aino/galleria/master/LICENSE
*
*/
(function( $, window, Galleria, undef ) {
/*global jQuery, navigator, Image, module, define */
// some references
var doc = window.document,
$doc = $( doc ),
$win = $( window ),
// native prototypes
protoArray = Array.prototype,
// internal constants
VERSION = 1.41,
DEBUG = true,
TIMEOUT = 30000,
DUMMY = false,
NAV = navigator.userAgent.toLowerCase(),
HASH = window.location.hash.replace(/#\//, ''),
PROT = window.location.protocol,
M = Math,
F = function(){},
FALSE = function() { return false; },
IE = (function() {
var v = 3,
div = doc.createElement( 'div' ),
all = div.getElementsByTagName( 'i' );
do {
div.innerHTML = '<!--[if gt IE ' + (++v) + ']><i></i><![endif]-->';
} while ( all[0] );
return v > 4 ? v : doc.documentMode || undef;
}() ),
DOM = function() {
return {
html: doc.documentElement,
body: doc.body,
head: doc.getElementsByTagName('head')[0],
title: doc.title
};
},
IFRAME = window.parent !== window.self,
// list of Galleria events
_eventlist = 'data ready thumbnail loadstart loadfinish image play pause progress ' +
'fullscreen_enter fullscreen_exit idle_enter idle_exit rescale ' +
'lightbox_open lightbox_close lightbox_image',
_events = (function() {
var evs = [];
$.each( _eventlist.split(' '), function( i, ev ) {
evs.push( ev );
// legacy events
if ( /_/.test( ev ) ) {
evs.push( ev.replace( /_/g, '' ) );
}
});
return evs;
}()),
// legacy options
// allows the old my_setting syntax and converts it to camel case
_legacyOptions = function( options ) {
var n;
if ( typeof options !== 'object' ) {
// return whatever it was...
return options;
}
$.each( options, function( key, value ) {
if ( /^[a-z]+_/.test( key ) ) {
n = '';
$.each( key.split('_'), function( i, k ) {
n += i > 0 ? k.substr( 0, 1 ).toUpperCase() + k.substr( 1 ) : k;
});
options[ n ] = value;
delete options[ key ];
}
});
return options;
},
_patchEvent = function( type ) {
// allow 'image' instead of Galleria.IMAGE
if ( $.inArray( type, _events ) > -1 ) {
return Galleria[ type.toUpperCase() ];
}
return type;
},
// video providers
_video = {
youtube: {
reg: /https?:\/\/(?:[a-zA_Z]{2,3}.)?(?:youtube\.com\/watch\?)((?:[\w\d\-\_\=]+&(?:amp;)?)*v(?:<[A-Z]+>)?=([0-9a-zA-Z\-\_]+))/i,
embed: function() {
return 'http://www.youtube.com/embed/' + this.id;
},
getUrl: function() {
return PROT + '//gdata.youtube.com/feeds/api/videos/' + this.id + '?v=2&alt=json-in-script&callback=?';
},
get_thumb: function(data) {
return data.entry.media$group.media$thumbnail[2].url;
},
get_image: function(data) {
if ( data.entry.yt$hd ) {
return PROT + '//img.youtube.com/vi/'+this.id+'/maxresdefault.jpg';
}
return data.entry.media$group.media$thumbnail[3].url;
}
},
vimeo: {
reg: /https?:\/\/(?:www\.)?(vimeo\.com)\/(?:hd#)?([0-9]+)/i,
embed: function() {
return 'http://player.vimeo.com/video/' + this.id;
},
getUrl: function() {
return PROT + '//vimeo.com/api/v2/video/' + this.id + '.json?callback=?';
},
get_thumb: function( data ) {
return data[0].thumbnail_medium;
},
get_image: function( data ) {
return data[0].thumbnail_large;
}
},
dailymotion: {
reg: /https?:\/\/(?:www\.)?(dailymotion\.com)\/video\/([^_]+)/,
embed: function() {
return PROT + '//www.dailymotion.com/embed/video/' + this.id;
},
getUrl: function() {
return 'https://api.dailymotion.com/video/' + this.id + '?fields=thumbnail_240_url,thumbnail_720_url&callback=?';
},
get_thumb: function( data ) {
return data.thumbnail_240_url;
},
get_image: function( data ) {
return data.thumbnail_720_url;
}
},
_inst: []
},
Video = function( type, id ) {
for( var i=0; i<_video._inst.length; i++ ) {
if ( _video._inst[i].id === id && _video._inst[i].type == type ) {
return _video._inst[i];
}
}
this.type = type;
this.id = id;
this.readys = [];
_video._inst.push(this);
var self = this;
$.extend( this, _video[type] );
$.getJSON( this.getUrl(), function(data) {
self.data = data;
$.each( self.readys, function( i, fn ) {
fn( self.data );
});
self.readys = [];
});
this.getMedia = function( type, callback, fail ) {
fail = fail || F;
var self = this;
var success = function( data ) {
callback( self['get_'+type]( data ) );
};
try {
if ( self.data ) {
success( self.data );
} else {
self.readys.push( success );
}
} catch(e) {
fail();
}
};
},
// utility for testing the video URL and getting the video ID
_videoTest = function( url ) {
var match;
for ( var v in _video ) {
match = url && _video[v].reg && url.match( _video[v].reg );
if( match && match.length ) {
return {
id: match[2],
provider: v
};
}
}
return false;
},
// native fullscreen handler
_nativeFullscreen = {
support: (function() {
var html = DOM().html;
return !IFRAME && ( html.requestFullscreen || html.msRequestFullscreen || html.mozRequestFullScreen || html.webkitRequestFullScreen );
}()),
callback: F,
enter: function( instance, callback, elem ) {
this.instance = instance;
this.callback = callback || F;
elem = elem || DOM().html;
if ( elem.requestFullscreen ) {
elem.requestFullscreen();
}
else if ( elem.msRequestFullscreen ) {
elem.msRequestFullscreen();
}
else if ( elem.mozRequestFullScreen ) {
elem.mozRequestFullScreen();
}
else if ( elem.webkitRequestFullScreen ) {
elem.webkitRequestFullScreen();
}
},
exit: function( callback ) {
this.callback = callback || F;
if ( doc.exitFullscreen ) {
doc.exitFullscreen();
}
else if ( doc.msExitFullscreen ) {
doc.msExitFullscreen();
}
else if ( doc.mozCancelFullScreen ) {
doc.mozCancelFullScreen();
}
else if ( doc.webkitCancelFullScreen ) {
doc.webkitCancelFullScreen();
}
},
instance: null,
listen: function() {
if ( !this.support ) {
return;
}
var handler = function() {
if ( !_nativeFullscreen.instance ) {
return;
}
var fs = _nativeFullscreen.instance._fullscreen;
if ( doc.fullscreen || doc.mozFullScreen || doc.webkitIsFullScreen || ( doc.msFullscreenElement && doc.msFullscreenElement !== null ) ) {
fs._enter( _nativeFullscreen.callback );
} else {
fs._exit( _nativeFullscreen.callback );
}
};
doc.addEventListener( 'fullscreenchange', handler, false );
doc.addEventListener( 'MSFullscreenChange', handler, false );
doc.addEventListener( 'mozfullscreenchange', handler, false );
doc.addEventListener( 'webkitfullscreenchange', handler, false );
}
},
// the internal gallery holder
_galleries = [],
// the internal instance holder
_instances = [],
// flag for errors
_hasError = false,
// canvas holder
_canvas = false,
// instance pool, holds the galleries until themeLoad is triggered
_pool = [],
// Run galleries from theme trigger
_loadedThemes = [],
_themeLoad = function( theme ) {
_loadedThemes.push(theme);
// run the instances we have in the pool
// and apply the last theme if not specified
$.each( _pool, function( i, instance ) {
if ( instance._options.theme == theme.name || (!instance._initialized && !instance._options.theme) ) {
instance.theme = theme;
instance._init.call( instance );
}
});
},
// the Utils singleton
Utils = (function() {
return {
// legacy support for clearTimer
clearTimer: function( id ) {
$.each( Galleria.get(), function() {
this.clearTimer( id );
});
},
// legacy support for addTimer
addTimer: function( id ) {
$.each( Galleria.get(), function() {
this.addTimer( id );
});
},
array : function( obj ) {
return protoArray.slice.call(obj, 0);
},
create : function( className, nodeName ) {
nodeName = nodeName || 'div';
var elem = doc.createElement( nodeName );
elem.className = className;
return elem;
},
removeFromArray : function( arr, elem ) {
$.each(arr, function(i, el) {
if ( el == elem ) {
arr.splice(i, 1);
return false;
}
});
return arr;
},
getScriptPath : function( src ) {
// the currently executing script is always the last
src = src || $('script:last').attr('src');
var slices = src.split('/');
if (slices.length == 1) {
return '';
}
slices.pop();
return slices.join('/') + '/';
},
// CSS3 transitions, added in 1.2.4
animate : (function() {
// detect transition
var transition = (function( style ) {
var props = 'transition WebkitTransition MozTransition OTransition'.split(' '),
i;
// disable css3 animations in opera until stable
if ( window.opera ) {
return false;
}
for ( i = 0; props[i]; i++ ) {
if ( typeof style[ props[ i ] ] !== 'undefined' ) {
return props[ i ];
}
}
return false;
}(( doc.body || doc.documentElement).style ));
// map transitionend event
var endEvent = {
MozTransition: 'transitionend',
OTransition: 'oTransitionEnd',
WebkitTransition: 'webkitTransitionEnd',
transition: 'transitionend'
}[ transition ];
// map bezier easing conversions
var easings = {
_default: [0.25, 0.1, 0.25, 1],
galleria: [0.645, 0.045, 0.355, 1],
galleriaIn: [0.55, 0.085, 0.68, 0.53],
galleriaOut: [0.25, 0.46, 0.45, 0.94],
ease: [0.25, 0, 0.25, 1],
linear: [0.25, 0.25, 0.75, 0.75],
'ease-in': [0.42, 0, 1, 1],
'ease-out': [0, 0, 0.58, 1],
'ease-in-out': [0.42, 0, 0.58, 1]
};
// function for setting transition css for all browsers
var setStyle = function( elem, value, suffix ) {
var css = {};
suffix = suffix || 'transition';
$.each( 'webkit moz ms o'.split(' '), function() {
css[ '-' + this + '-' + suffix ] = value;
});
elem.css( css );
};
// clear styles
var clearStyle = function( elem ) {
setStyle( elem, 'none', 'transition' );
if ( Galleria.WEBKIT && Galleria.TOUCH ) {
setStyle( elem, 'translate3d(0,0,0)', 'transform' );
if ( elem.data('revert') ) {
elem.css( elem.data('revert') );
elem.data('revert', null);
}
}
};
// various variables
var change, strings, easing, syntax, revert, form, css;
// the actual animation method
return function( elem, to, options ) {
// extend defaults
options = $.extend({
duration: 400,
complete: F,
stop: false
}, options);
// cache jQuery instance
elem = $( elem );
if ( !options.duration ) {
elem.css( to );
options.complete.call( elem[0] );
return;
}
// fallback to jQuery's animate if transition is not supported
if ( !transition ) {
elem.animate(to, options);
return;
}
// stop
if ( options.stop ) {
// clear the animation
elem.off( endEvent );
clearStyle( elem );
}
// see if there is a change
change = false;
$.each( to, function( key, val ) {
css = elem.css( key );
if ( Utils.parseValue( css ) != Utils.parseValue( val ) ) {
change = true;
}
// also add computed styles for FF
elem.css( key, css );
});
if ( !change ) {
window.setTimeout( function() {
options.complete.call( elem[0] );
}, options.duration );
return;
}
// the css strings to be applied
strings = [];
// the easing bezier
easing = options.easing in easings ? easings[ options.easing ] : easings._default;
// the syntax
syntax = ' ' + options.duration + 'ms' + ' cubic-bezier(' + easing.join(',') + ')';
// add a tiny timeout so that the browsers catches any css changes before animating
window.setTimeout( (function(elem, endEvent, to, syntax) {
return function() {
// attach the end event
elem.one(endEvent, (function( elem ) {
return function() {
// clear the animation
clearStyle(elem);
// run the complete method
options.complete.call(elem[0]);
};
}( elem )));
// do the webkit translate3d for better performance on iOS
if( Galleria.WEBKIT && Galleria.TOUCH ) {
revert = {};
form = [0,0,0];
$.each( ['left', 'top'], function(i, m) {
if ( m in to ) {
form[ i ] = ( Utils.parseValue( to[ m ] ) - Utils.parseValue(elem.css( m )) ) + 'px';
revert[ m ] = to[ m ];
delete to[ m ];
}
});
if ( form[0] || form[1]) {
elem.data('revert', revert);
strings.push('-webkit-transform' + syntax);
// 3d animate
setStyle( elem, 'translate3d(' + form.join(',') + ')', 'transform');
}
}
// push the animation props
$.each(to, function( p, val ) {
strings.push(p + syntax);
});
// set the animation styles
setStyle( elem, strings.join(',') );
// animate
elem.css( to );
};
}(elem, endEvent, to, syntax)), 2);
};
}()),
removeAlpha : function( elem ) {
if ( elem instanceof jQuery ) {
elem = elem[0];
}
if ( IE < 9 && elem ) {
var style = elem.style,
currentStyle = elem.currentStyle,
filter = currentStyle && currentStyle.filter || style.filter || "";
if ( /alpha/.test( filter ) ) {
style.filter = filter.replace( /alpha\([^)]*\)/i, '' );
}
}
},
forceStyles : function( elem, styles ) {
elem = $(elem);
if ( elem.attr( 'style' ) ) {
elem.data( 'styles', elem.attr( 'style' ) ).removeAttr( 'style' );
}
elem.css( styles );
},
revertStyles : function() {
$.each( Utils.array( arguments ), function( i, elem ) {
elem = $( elem );
elem.removeAttr( 'style' );
elem.attr('style',''); // "fixes" webkit bug
if ( elem.data( 'styles' ) ) {
elem.attr( 'style', elem.data('styles') ).data( 'styles', null );
}
});
},
moveOut : function( elem ) {
Utils.forceStyles( elem, {
position: 'absolute',
left: -10000
});
},
moveIn : function() {
Utils.revertStyles.apply( Utils, Utils.array( arguments ) );
},
hide : function( elem, speed, callback ) {
callback = callback || F;
var $elem = $(elem);
elem = $elem[0];
// save the value if not exist
if (! $elem.data('opacity') ) {
$elem.data('opacity', $elem.css('opacity') );
}
// always hide
var style = { opacity: 0 };
if (speed) {
var complete = IE < 9 && elem ? function() {
Utils.removeAlpha( elem );
elem.style.visibility = 'hidden';
callback.call( elem );
} : callback;
Utils.animate( elem, style, {
duration: speed,
complete: complete,
stop: true
});
} else {
if ( IE < 9 && elem ) {
Utils.removeAlpha( elem );
elem.style.visibility = 'hidden';
} else {
$elem.css( style );
}
}
},
show : function( elem, speed, callback ) {
callback = callback || F;
var $elem = $(elem);
elem = $elem[0];
// bring back saved opacity
var saved = parseFloat( $elem.data('opacity') ) || 1,
style = { opacity: saved };
// animate or toggle
if (speed) {
if ( IE < 9 ) {
$elem.css('opacity', 0);
elem.style.visibility = 'visible';
}
var complete = IE < 9 && elem ? function() {
if ( style.opacity == 1 ) {
Utils.removeAlpha( elem );
}
callback.call( elem );
} : callback;
Utils.animate( elem, style, {
duration: speed,
complete: complete,
stop: true
});
} else {
if ( IE < 9 && style.opacity == 1 && elem ) {
Utils.removeAlpha( elem );
elem.style.visibility = 'visible';
} else {
$elem.css( style );
}
}
},
wait : function(options) {
Galleria._waiters = Galleria._waiters || [];
options = $.extend({
until : FALSE,
success : F,
error : function() { Galleria.raise('Could not complete wait function.'); },
timeout: 3000
}, options);
var start = Utils.timestamp(),
elapsed,
now,
tid,
fn = function() {
now = Utils.timestamp();
elapsed = now - start;
Utils.removeFromArray( Galleria._waiters, tid );
if ( options.until( elapsed ) ) {
options.success();
return false;
}
if (typeof options.timeout == 'number' && now >= start + options.timeout) {
options.error();
return false;
}
Galleria._waiters.push( tid = window.setTimeout(fn, 10) );
};
Galleria._waiters.push( tid = window.setTimeout(fn, 10) );
},
toggleQuality : function( img, force ) {
if ( ( IE !== 7 && IE !== 8 ) || !img || img.nodeName.toUpperCase() != 'IMG' ) {
return;
}
if ( typeof force === 'undefined' ) {
force = img.style.msInterpolationMode === 'nearest-neighbor';
}
img.style.msInterpolationMode = force ? 'bicubic' : 'nearest-neighbor';
},
insertStyleTag : function( styles, id ) {
if ( id && $( '#'+id ).length ) {
return;
}
var style = doc.createElement( 'style' );
if ( id ) {
style.id = id;
}
DOM().head.appendChild( style );
if ( style.styleSheet ) { // IE
style.styleSheet.cssText = styles;
} else {
var cssText = doc.createTextNode( styles );
style.appendChild( cssText );
}
},
// a loadscript method that works for local scripts
loadScript: function( url, callback ) {
var done = false,
script = $('<scr'+'ipt>').attr({
src: url,
async: true
}).get(0);
// Attach handlers for all browsers
script.onload = script.onreadystatechange = function() {
if ( !done && (!this.readyState ||
this.readyState === 'loaded' || this.readyState === 'complete') ) {
done = true;
// Handle memory leak in IE
script.onload = script.onreadystatechange = null;
if (typeof callback === 'function') {
callback.call( this, this );
}
}
};
DOM().head.appendChild( script );
},
// parse anything into a number
parseValue: function( val ) {
if (typeof val === 'number') {
return val;
} else if (typeof val === 'string') {
var arr = val.match(/\-?\d|\./g);
return arr && arr.constructor === Array ? arr.join('')*1 : 0;
} else {
return 0;
}
},
// timestamp abstraction
timestamp: function() {
return new Date().getTime();
},
loadCSS : function( href, id, callback ) {
var link,
length;
// look for manual css
$('link[rel=stylesheet]').each(function() {
if ( new RegExp( href ).test( this.href ) ) {
link = this;
return false;
}
});
if ( typeof id === 'function' ) {
callback = id;
id = undef;
}
callback = callback || F; // dirty
// if already present, return
if ( link ) {
callback.call( link, link );
return link;
}
// save the length of stylesheets to check against
length = doc.styleSheets.length;
// check for existing id
if( $( '#' + id ).length ) {
$( '#' + id ).attr( 'href', href );
length--;
} else {
link = $( '<link>' ).attr({
rel: 'stylesheet',
href: href,
id: id
}).get(0);
var styles = $('link[rel="stylesheet"], style');
if ( styles.length ) {
styles.get(0).parentNode.insertBefore( link, styles[0] );
} else {
DOM().head.appendChild( link );
}
if ( IE && length >= 31 ) {
Galleria.raise( 'You have reached the browser stylesheet limit (31)', true );
return;
}
}
if ( typeof callback === 'function' ) {
// First check for dummy element (new in 1.2.8)
var $loader = $('<s>').attr( 'id', 'galleria-loader' ).hide().appendTo( DOM().body );
Utils.wait({
until: function() {
return $loader.height() == 1;
},
success: function() {
$loader.remove();
callback.call( link, link );
},
error: function() {
$loader.remove();
// If failed, tell the dev to download the latest theme
Galleria.raise( 'Theme CSS could not load after 20 sec. ' + ( Galleria.QUIRK ?
'Your browser is in Quirks Mode, please add a correct doctype.' :
'Please download the latest theme at http://galleria.io/customer/.' ), true );
},
timeout: 5000
});
}
return link;
}
};
}()),
// play icon
_playIcon = function( container ) {
var css = '.galleria-videoicon{width:60px;height:60px;position:absolute;top:50%;left:50%;z-index:1;' +
'margin:-30px 0 0 -30px;cursor:pointer;background:#000;background:rgba(0,0,0,.8);border-radius:3px;-webkit-transition:all 150ms}' +
'.galleria-videoicon i{width:0px;height:0px;border-style:solid;border-width:10px 0 10px 16px;display:block;' +
'border-color:transparent transparent transparent #ffffff;margin:20px 0 0 22px}.galleria-image:hover .galleria-videoicon{background:#000}';
Utils.insertStyleTag( css, 'galleria-videoicon' );
return $( Utils.create( 'galleria-videoicon' ) ).html( '<i></i>' ).appendTo( container )
.click( function() { $( this ).siblings( 'img' ).mouseup(); });
},
// the transitions holder
_transitions = (function() {
var _slide = function(params, complete, fade, door) {
var easing = this.getOptions('easing'),
distance = this.getStageWidth(),
from = { left: distance * ( params.rewind ? -1 : 1 ) },
to = { left: 0 };
if ( fade ) {
from.opacity = 0;
to.opacity = 1;
} else {
from.opacity = 1;
}
$(params.next).css(from);
Utils.animate(params.next, to, {
duration: params.speed,
complete: (function( elems ) {
return function() {
complete();
elems.css({
left: 0
});
};
}( $( params.next ).add( params.prev ) )),
queue: false,
easing: easing
});
if (door) {
params.rewind = !params.rewind;
}
if (params.prev) {
from = { left: 0 };
to = { left: distance * ( params.rewind ? 1 : -1 ) };
if ( fade ) {
from.opacity = 1;
to.opacity = 0;
}
$(params.prev).css(from);
Utils.animate(params.prev, to, {
duration: params.speed,
queue: false,
easing: easing,
complete: function() {
$(this).css('opacity', 0);
}
});
}
};
return {
active: false,
init: function( effect, params, complete ) {
if ( _transitions.effects.hasOwnProperty( effect ) ) {
_transitions.effects[ effect ].call( this, params, complete );
}
},
effects: {
fade: function(params, complete) {
$(params.next).css({
opacity: 0,
left: 0
});
Utils.animate(params.next, {
opacity: 1
},{
duration: params.speed,
complete: complete
});
if (params.prev) {
$(params.prev).css('opacity',1).show();
Utils.animate(params.prev, {
opacity: 0
},{
duration: params.speed
});
}
},
flash: function(params, complete) {
$(params.next).css({
opacity: 0,
left: 0
});
if (params.prev) {
Utils.animate( params.prev, {
opacity: 0
},{
duration: params.speed/2,
complete: function() {
Utils.animate( params.next, {
opacity:1
},{
duration: params.speed,
complete: complete
});
}
});
} else {
Utils.animate( params.next, {
opacity: 1
},{
duration: params.speed,
complete: complete
});
}
},
pulse: function(params, complete) {
if (params.prev) {
$(params.prev).hide();
}
$(params.next).css({
opacity: 0,
left: 0
}).show();
Utils.animate(params.next, {
opacity:1
},{
duration: params.speed,
complete: complete
});
},
slide: function(params, complete) {
_slide.apply( this, Utils.array( arguments ) );
},
fadeslide: function(params, complete) {
_slide.apply( this, Utils.array( arguments ).concat( [true] ) );
},
doorslide: function(params, complete) {
_slide.apply( this, Utils.array( arguments ).concat( [false, true] ) );
}
}
};
}());
// listen to fullscreen
_nativeFullscreen.listen();
// create special click:fast event for fast touch interaction
$.event.special['click:fast'] = {
propagate: true,
add: function(handleObj) {
var getCoords = function(e) {
if ( e.touches && e.touches.length ) {
var touch = e.touches[0];
return {
x: touch.pageX,
y: touch.pageY
};
}
};
var def = {
touched: false,
touchdown: false,
coords: { x:0, y:0 },
evObj: {}
};
$(this).data({
clickstate: def,
timer: 0
}).on('touchstart.fast', function(e) {
window.clearTimeout($(this).data('timer'));
$(this).data('clickstate', {
touched: true,
touchdown: true,
coords: getCoords(e.originalEvent),
evObj: e
});
}).on('touchmove.fast', function(e) {
var coords = getCoords(e.originalEvent),
state = $(this).data('clickstate'),
distance = Math.max(
Math.abs(state.coords.x - coords.x),
Math.abs(state.coords.y - coords.y)
);
if ( distance > 6 ) {
$(this).data('clickstate', $.extend(state, {
touchdown: false
}));
}
}).on('touchend.fast', function(e) {
var $this = $(this),
state = $this.data('clickstate');
if(state.touchdown) {
handleObj.handler.call(this, e);
}
$this.data('timer', window.setTimeout(function() {
$this.data('clickstate', def);
}, 400));
}).on('click.fast', function(e) {
var state = $(this).data('clickstate');
if ( state.touched ) {
return false;
}
$(this).data('clickstate', def);
handleObj.handler.call(this, e);
});
},
remove: function() {
$(this).off('touchstart.fast touchmove.fast touchend.fast click.fast');
}
};
// trigger resize on orientationchange (IOS7)
$win.on( 'orientationchange', function() {
$(this).resize();
});
/**
The main Galleria class
@class
@constructor
@example var gallery = new Galleria();
@author http://aino.se
@requires jQuery
*/
Galleria = function() {
var self = this;
// internal options
this._options = {};
// flag for controlling play/pause
this._playing = false;
// internal interval for slideshow
this._playtime = 5000;
// internal variable for the currently active image
this._active = null;
// the internal queue, arrayified
this._queue = { length: 0 };
// the internal data array
this._data = [];
// the internal dom collection
this._dom = {};
// the internal thumbnails array
this._thumbnails = [];
// the internal layers array
this._layers = [];
// internal init flag
this._initialized = false;
// internal firstrun flag
this._firstrun = false;
// global stagewidth/height
this._stageWidth = 0;
this._stageHeight = 0;
// target holder
this._target = undef;
// bind hashes
this._binds = [];
// instance id
this._id = parseInt(M.random()*10000, 10);
// add some elements
var divs = 'container stage images image-nav image-nav-left image-nav-right ' +
'info info-text info-title info-description ' +
'thumbnails thumbnails-list thumbnails-container thumb-nav-left thumb-nav-right ' +
'loader counter tooltip',
spans = 'current total';
$.each( divs.split(' '), function( i, elemId ) {
self._dom[ elemId ] = Utils.create( 'galleria-' + elemId );
});
$.each( spans.split(' '), function( i, elemId ) {
self._dom[ elemId ] = Utils.create( 'galleria-' + elemId, 'span' );
});
// the internal keyboard object
// keeps reference of the keybinds and provides helper methods for binding keys
var keyboard = this._keyboard = {
keys : {
'UP': 38,
'DOWN': 40,
'LEFT': 37,
'RIGHT': 39,
'RETURN': 13,
'ESCAPE': 27,
'BACKSPACE': 8,
'SPACE': 32
},
map : {},
bound: false,
press: function(e) {
var key = e.keyCode || e.which;
if ( key in keyboard.map && typeof keyboard.map[key] === 'function' ) {
keyboard.map[key].call(self, e);
}
},
attach: function(map) {
var key, up;
for( key in map ) {
if ( map.hasOwnProperty( key ) ) {
up = key.toUpperCase();
if ( up in keyboard.keys ) {
keyboard.map[ keyboard.keys[up] ] = map[key];
} else {
keyboard.map[ up ] = map[key];
}
}
}
if ( !keyboard.bound ) {
keyboard.bound = true;
$doc.on('keydown', keyboard.press);
}
},
detach: function() {
keyboard.bound = false;
keyboard.map = {};
$doc.off('keydown', keyboard.press);
}
};
// internal controls for keeping track of active / inactive images
var controls = this._controls = {
0: undef,
1: undef,
active : 0,
swap : function() {
controls.active = controls.active ? 0 : 1;
},
getActive : function() {
return self._options.swipe ? controls.slides[ self._active ] : controls[ controls.active ];
},
getNext : function() {
return self._options.swipe ? controls.slides[ self.getNext( self._active ) ] : controls[ 1 - controls.active ];
},
slides : [],
frames: [],
layers: []
};
// internal carousel object
var carousel = this._carousel = {
// shortcuts
next: self.$('thumb-nav-right'),
prev: self.$('thumb-nav-left'),
// cache the width
width: 0,
// track the current position
current: 0,
// cache max value
max: 0,
// save all hooks for each width in an array
hooks: [],
// update the carousel
// you can run this method anytime, f.ex on window.resize
update: function() {
var w = 0,
h = 0,
hooks = [0];
$.each( self._thumbnails, function( i, thumb ) {
if ( thumb.ready ) {
w += thumb.outerWidth || $( thumb.container ).outerWidth( true );
// Due to a bug in jquery, outerwidth() returns the floor of the actual outerwidth,
// if the browser is zoom to a value other than 100%. height() returns the floating point value.
var containerWidth = $( thumb.container).width();
w += containerWidth - M.floor(containerWidth);
hooks[ i+1 ] = w;
h = M.max( h, thumb.outerHeight || $( thumb.container).outerHeight( true ) );
}
});
self.$( 'thumbnails' ).css({
width: w,
height: h
});
carousel.max = w;
carousel.hooks = hooks;
carousel.width = self.$( 'thumbnails-list' ).width();
carousel.setClasses();
self.$( 'thumbnails-container' ).toggleClass( 'galleria-carousel', w > carousel.width );
// one extra calculation
carousel.width = self.$( 'thumbnails-list' ).width();
// todo: fix so the carousel moves to the left
},
bindControls: function() {
var i;
carousel.next.on( 'click:fast', function(e) {
e.preventDefault();
if ( self._options.carouselSteps === 'auto' ) {
for ( i = carousel.current; i < carousel.hooks.length; i++ ) {
if ( carousel.hooks[i] - carousel.hooks[ carousel.current ] > carousel.width ) {
carousel.set(i - 2);
break;
}
}
} else {
carousel.set( carousel.current + self._options.carouselSteps);
}
});
carousel.prev.on( 'click:fast', function(e) {
e.preventDefault();
if ( self._options.carouselSteps === 'auto' ) {
for ( i = carousel.current; i >= 0; i-- ) {
if ( carousel.hooks[ carousel.current ] - carousel.hooks[i] > carousel.width ) {
carousel.set( i + 2 );
break;
} else if ( i === 0 ) {
carousel.set( 0 );
break;
}
}
} else {
carousel.set( carousel.current - self._options.carouselSteps );
}
});
},
// calculate and set positions
set: function( i ) {
i = M.max( i, 0 );
while ( carousel.hooks[i - 1] + carousel.width >= carousel.max && i >= 0 ) {
i--;
}
carousel.current = i;
carousel.animate();
},
// get the last position
getLast: function(i) {
return ( i || carousel.current ) - 1;
},
// follow the active image
follow: function(i) {
//don't follow if position fits
if ( i === 0 || i === carousel.hooks.length - 2 ) {
carousel.set( i );
return;
}
// calculate last position
var last = carousel.current;
while( carousel.hooks[last] - carousel.hooks[ carousel.current ] <
carousel.width && last <= carousel.hooks.length ) {
last ++;
}
// set position
if ( i - 1 < carousel.current ) {
carousel.set( i - 1 );
} else if ( i + 2 > last) {
carousel.set( i - last + carousel.current + 2 );
}
},
// helper for setting disabled classes
setClasses: function() {
carousel.prev.toggleClass( 'disabled', !carousel.current );
carousel.next.toggleClass( 'disabled', carousel.hooks[ carousel.current ] + carousel.width >= carousel.max );
},
// the animation method
animate: function(to) {
carousel.setClasses();
var num = carousel.hooks[ carousel.current ] * -1;
if ( isNaN( num ) ) {
return;
}
// FF 24 bug
self.$( 'thumbnails' ).css('left', function() {
return $(this).css('left');
});
Utils.animate(self.get( 'thumbnails' ), {
left: num
},{
duration: self._options.carouselSpeed,
easing: self._options.easing,
queue: false
});
}
};
// tooltip control
// added in 1.2
var tooltip = this._tooltip = {
initialized : false,
open: false,
timer: 'tooltip' + self._id,
swapTimer: 'swap' + self._id,
init: function() {
tooltip.initialized = true;
var css = '.galleria-tooltip{padding:3px 8px;max-width:50%;background:#ffe;color:#000;z-index:3;position:absolute;font-size:11px;line-height:1.3;' +
'opacity:0;box-shadow:0 0 2px rgba(0,0,0,.4);-moz-box-shadow:0 0 2px rgba(0,0,0,.4);-webkit-box-shadow:0 0 2px rgba(0,0,0,.4);}';
Utils.insertStyleTag( css, 'galleria-tooltip' );
self.$( 'tooltip' ).css({
opacity: 0.8,
visibility: 'visible',
display: 'none'
});
},
// move handler
move: function( e ) {
var mouseX = self.getMousePosition(e).x,
mouseY = self.getMousePosition(e).y,
$elem = self.$( 'tooltip' ),
x = mouseX,
y = mouseY,
height = $elem.outerHeight( true ) + 1,
width = $elem.outerWidth( true ),
limitY = height + 15;
var maxX = self.$( 'container' ).width() - width - 2,
maxY = self.$( 'container' ).height() - height - 2;
if ( !isNaN(x) && !isNaN(y) ) {
x += 10;
y -= ( height+8 );
x = M.max( 0, M.min( maxX, x ) );
y = M.max( 0, M.min( maxY, y ) );
if( mouseY < limitY ) {
y = limitY;
}
$elem.css({ left: x, top: y });
}
},
// bind elements to the tooltip
// you can bind multiple elementIDs using { elemID : function } or { elemID : string }
// you can also bind single DOM elements using bind(elem, string)
bind: function( elem, value ) {
// todo: revise if alternative tooltip is needed for mobile devices
if (Galleria.TOUCH) {
return;
}
if (! tooltip.initialized ) {
tooltip.init();
}
var mouseout = function() {
self.$( 'container' ).off( 'mousemove', tooltip.move );
self.clearTimer( tooltip.timer );
self.$( 'tooltip' ).stop().animate({
opacity: 0
}, 200, function() {
self.$( 'tooltip' ).hide();
self.addTimer( tooltip.swapTimer, function() {
tooltip.open = false;
}, 1000);
});
};
var hover = function( elem, value) {
tooltip.define( elem, value );
$( elem ).hover(function() {
self.clearTimer( tooltip.swapTimer );
self.$('container').off( 'mousemove', tooltip.move ).on( 'mousemove', tooltip.move ).trigger( 'mousemove' );
tooltip.show( elem );
self.addTimer( tooltip.timer, function() {
self.$( 'tooltip' ).stop().show().animate({
opacity: 1
});
tooltip.open = true;
}, tooltip.open ? 0 : 500);
}, mouseout).click(mouseout);
};
if ( typeof value === 'string' ) {
hover( ( elem in self._dom ? self.get( elem ) : elem ), value );
} else {
// asume elemID here
$.each( elem, function( elemID, val ) {
hover( self.get(elemID), val );
});
}
},
show: function( elem ) {
elem = $( elem in self._dom ? self.get(elem) : elem );
var text = elem.data( 'tt' ),
mouseup = function( e ) {
// attach a tiny settimeout to make sure the new tooltip is filled
window.setTimeout( (function( ev ) {
return function() {
tooltip.move( ev );
};
}( e )), 10);
elem.off( 'mouseup', mouseup );
};
text = typeof text === 'function' ? text() : text;
if ( ! text ) {
return;
}
self.$( 'tooltip' ).html( text.replace(/\s/, ' ') );
// trigger mousemove on mouseup in case of click
elem.on( 'mouseup', mouseup );
},
define: function( elem, value ) {
// we store functions, not strings
if (typeof value !== 'function') {
var s = value;
value = function() {
return s;
};
}
elem = $( elem in self._dom ? self.get(elem) : elem ).data('tt', value);
tooltip.show( elem );
}
};
// internal fullscreen control
var fullscreen = this._fullscreen = {
scrolled: 0,
crop: undef,
active: false,
prev: $(),
beforeEnter: function(fn){ fn(); },
beforeExit: function(fn){ fn(); },
keymap: self._keyboard.map,
parseCallback: function( callback, enter ) {
return _transitions.active ? function() {
if ( typeof callback == 'function' ) {
callback.call(self);
}
var active = self._controls.getActive(),
next = self._controls.getNext();
self._scaleImage( next );
self._scaleImage( active );
if ( enter && self._options.trueFullscreen ) {
// Firefox bug, revise later
$( active.container ).add( next.container ).trigger( 'transitionend' );
}
} : callback;
},
enter: function( callback ) {
fullscreen.beforeEnter(function() {
callback = fullscreen.parseCallback( callback, true );
if ( self._options.trueFullscreen && _nativeFullscreen.support ) {
// do some stuff prior animation for wmoother transitions
fullscreen.active = true;
Utils.forceStyles( self.get('container'), {
width: '100%',
height: '100%'
});
self.rescale();
if ( Galleria.MAC ) {
if ( !( Galleria.SAFARI && /version\/[1-5]/.test(NAV)) ) {
self.$('container').css('opacity', 0).addClass('fullscreen');
window.setTimeout(function() {
fullscreen.scale();
self.$('container').css('opacity', 1);
}, 50);
} else {
self.$('stage').css('opacity', 0);
window.setTimeout(function() {
fullscreen.scale();
self.$('stage').css('opacity', 1);
},4);
}
} else {
self.$('container').addClass('fullscreen');
}
$win.resize( fullscreen.scale );
_nativeFullscreen.enter( self, callback, self.get('container') );
} else {
fullscreen.scrolled = $win.scrollTop();
if( !Galleria.TOUCH ) {
window.scrollTo(0, 0);
}
fullscreen._enter( callback );
}
});
},
_enter: function( callback ) {
fullscreen.active = true;
if ( IFRAME ) {
fullscreen.iframe = (function() {
var elem,
refer = doc.referrer,
test = doc.createElement('a'),
loc = window.location;
test.href = refer;
if( test.protocol != loc.protocol ||
test.hostname != loc.hostname ||
test.port != loc.port ) {
Galleria.raise('Parent fullscreen not available. Iframe protocol, domains and ports must match.');
return false;
}
fullscreen.pd = window.parent.document;
$( fullscreen.pd ).find('iframe').each(function() {
var idoc = this.contentDocument || this.contentWindow.document;
if ( idoc === doc ) {
elem = this;
return false;
}
});
return elem;
}());
}
// hide the image until rescale is complete
Utils.hide( self.getActiveImage() );
if ( IFRAME && fullscreen.iframe ) {
fullscreen.iframe.scrolled = $( window.parent ).scrollTop();
window.parent.scrollTo(0, 0);
}
var data = self.getData(),
options = self._options,
inBrowser = !self._options.trueFullscreen || !_nativeFullscreen.support,
htmlbody = {
height: '100%',
overflow: 'hidden',
margin:0,
padding:0
};
if (inBrowser) {
self.$('container').addClass('fullscreen');
fullscreen.prev = self.$('container').prev();
if ( !fullscreen.prev.length ) {
fullscreen.parent = self.$( 'container' ).parent();
}
// move
self.$( 'container' ).appendTo( 'body' );
// begin styleforce
Utils.forceStyles(self.get('container'), {
position: Galleria.TOUCH ? 'absolute' : 'fixed',
top: 0,
left: 0,
width: '100%',
height: '100%',
zIndex: 10000
});
Utils.forceStyles( DOM().html, htmlbody );
Utils.forceStyles( DOM().body, htmlbody );
}
if ( IFRAME && fullscreen.iframe ) {
Utils.forceStyles( fullscreen.pd.documentElement, htmlbody );
Utils.forceStyles( fullscreen.pd.body, htmlbody );
Utils.forceStyles( fullscreen.iframe, $.extend( htmlbody, {
width: '100%',
height: '100%',
top: 0,
left: 0,
position: 'fixed',
zIndex: 10000,
border: 'none'
}));
}
// temporarily attach some keys
// save the old ones first in a cloned object
fullscreen.keymap = $.extend({}, self._keyboard.map);
self.attachKeyboard({
escape: self.exitFullscreen,
right: self.next,
left: self.prev
});
// temporarily save the crop
fullscreen.crop = options.imageCrop;
// set fullscreen options
if ( options.fullscreenCrop != undef ) {
options.imageCrop = options.fullscreenCrop;
}
// swap to big image if it's different from the display image
if ( data && data.big && data.image !== data.big ) {
var big = new Galleria.Picture(),
cached = big.isCached( data.big ),
index = self.getIndex(),
thumb = self._thumbnails[ index ];
self.trigger( {
type: Galleria.LOADSTART,
cached: cached,
rewind: false,
index: index,
imageTarget: self.getActiveImage(),
thumbTarget: thumb,
galleriaData: data
});
big.load( data.big, function( big ) {
self._scaleImage( big, {
complete: function( big ) {
self.trigger({
type: Galleria.LOADFINISH,
cached: cached,
index: index,
rewind: false,
imageTarget: big.image,
thumbTarget: thumb
});
var image = self._controls.getActive().image;
if ( image ) {
$( image ).width( big.image.width ).height( big.image.height )
.attr( 'style', $( big.image ).attr('style') )
.attr( 'src', big.image.src );
}
}
});
});
var n = self.getNext(index),
p = new Galleria.Picture(),
ndata = self.getData( n );
p.preload( self.isFullscreen() && ndata.big ? ndata.big : ndata.image );
}
// init the first rescale and attach callbacks
self.rescale(function() {
self.addTimer(false, function() {
// show the image after 50 ms
if ( inBrowser ) {
Utils.show( self.getActiveImage() );
}
if (typeof callback === 'function') {
callback.call( self );
}
self.rescale();
}, 100);
self.trigger( Galleria.FULLSCREEN_ENTER );
});
if ( !inBrowser ) {
Utils.show( self.getActiveImage() );
} else {
$win.resize( fullscreen.scale );
}
},
scale : function() {
self.rescale();
},
exit: function( callback ) {
fullscreen.beforeExit(function() {
callback = fullscreen.parseCallback( callback );
if ( self._options.trueFullscreen && _nativeFullscreen.support ) {
_nativeFullscreen.exit( callback );
} else {
fullscreen._exit( callback );
}
});
},
_exit: function( callback ) {
fullscreen.active = false;
var inBrowser = !self._options.trueFullscreen || !_nativeFullscreen.support,
$container = self.$( 'container' ).removeClass( 'fullscreen' );
// move back
if ( fullscreen.parent ) {
fullscreen.parent.prepend( $container );
} else {
$container.insertAfter( fullscreen.prev );
}
if ( inBrowser ) {
Utils.hide( self.getActiveImage() );
// revert all styles
Utils.revertStyles( self.get('container'), DOM().html, DOM().body );
// scroll back
if( !Galleria.TOUCH ) {
window.scrollTo(0, fullscreen.scrolled);
}
// reload iframe src manually
var frame = self._controls.frames[ self._controls.active ];
if ( frame && frame.image ) {
frame.image.src = frame.image.src;
}
}
if ( IFRAME && fullscreen.iframe ) {
Utils.revertStyles( fullscreen.pd.documentElement, fullscreen.pd.body, fullscreen.iframe );
if ( fullscreen.iframe.scrolled ) {
window.parent.scrollTo(0, fullscreen.iframe.scrolled );
}
}
// detach all keyboard events and apply the old keymap
self.detachKeyboard();
self.attachKeyboard( fullscreen.keymap );
// bring back cached options
self._options.imageCrop = fullscreen.crop;
// return to original image
var big = self.getData().big,
image = self._controls.getActive().image;
if ( !self.getData().iframe && image && big && big == image.src ) {
window.setTimeout(function(src) {
return function() {
image.src = src;
};
}( self.getData().image ), 1 );
}
self.rescale(function() {
self.addTimer(false, function() {
// show the image after 50 ms
if ( inBrowser ) {
Utils.show( self.getActiveImage() );
}
if ( typeof callback === 'function' ) {
callback.call( self );
}
$win.trigger( 'resize' );
}, 50);
self.trigger( Galleria.FULLSCREEN_EXIT );
});
$win.off('resize', fullscreen.scale);
}
};
// the internal idle object for controlling idle states
var idle = this._idle = {
trunk: [],
bound: false,
active: false,
add: function(elem, to, from, hide) {
if ( !elem || Galleria.TOUCH ) {
return;
}
if (!idle.bound) {
idle.addEvent();
}
elem = $(elem);
if ( typeof from == 'boolean' ) {
hide = from;
from = {};
}
from = from || {};
var extract = {},
style;
for ( style in to ) {
if ( to.hasOwnProperty( style ) ) {
extract[ style ] = elem.css( style );
}
}
elem.data('idle', {
from: $.extend( extract, from ),
to: to,
complete: true,
busy: false
});
if ( !hide ) {
idle.addTimer();
} else {
elem.css( to );
}
idle.trunk.push(elem);
},
remove: function(elem) {
elem = $(elem);
$.each(idle.trunk, function(i, el) {
if ( el && el.length && !el.not(elem).length ) {
elem.css( elem.data( 'idle' ).from );
idle.trunk.splice(i, 1);
}
});
if (!idle.trunk.length) {
idle.removeEvent();
self.clearTimer( idle.timer );
}
},
addEvent : function() {
idle.bound = true;
self.$('container').on( 'mousemove click', idle.showAll );
if ( self._options.idleMode == 'hover' ) {
self.$('container').on( 'mouseleave', idle.hide );
}
},
removeEvent : function() {
idle.bound = false;
self.$('container').on( 'mousemove click', idle.showAll );
if ( self._options.idleMode == 'hover' ) {
self.$('container').off( 'mouseleave', idle.hide );
}
},
addTimer : function() {
if( self._options.idleMode == 'hover' ) {
return;
}
self.addTimer( 'idle', function() {
idle.hide();
}, self._options.idleTime );
},
hide : function() {
if ( !self._options.idleMode || self.getIndex() === false ) {
return;
}
self.trigger( Galleria.IDLE_ENTER );
var len = idle.trunk.length;
$.each( idle.trunk, function(i, elem) {
var data = elem.data('idle');
if (! data) {
return;
}
elem.data('idle').complete = false;
Utils.animate( elem, data.to, {
duration: self._options.idleSpeed,
complete: function() {
if ( i == len-1 ) {
idle.active = false;
}
}
});
});
},
showAll : function() {
self.clearTimer( 'idle' );
$.each( idle.trunk, function( i, elem ) {
idle.show( elem );
});
},
show: function(elem) {
var data = elem.data('idle');
if ( !idle.active || ( !data.busy && !data.complete ) ) {
data.busy = true;
self.trigger( Galleria.IDLE_EXIT );
self.clearTimer( 'idle' );
Utils.animate( elem, data.from, {
duration: self._options.idleSpeed/2,
complete: function() {
idle.active = true;
$(elem).data('idle').busy = false;
$(elem).data('idle').complete = true;
}
});
}
idle.addTimer();
}
};
// internal lightbox object
// creates a predesigned lightbox for simple popups of images in galleria
var lightbox = this._lightbox = {
width : 0,
height : 0,
initialized : false,
active : null,
image : null,
elems : {},
keymap: false,
init : function() {
if ( lightbox.initialized ) {
return;
}
lightbox.initialized = true;
// create some elements to work with
var elems = 'overlay box content shadow title info close prevholder prev nextholder next counter image',
el = {},
op = self._options,
css = '',
abs = 'position:absolute;',
prefix = 'lightbox-',
cssMap = {
overlay: 'position:fixed;display:none;opacity:'+op.overlayOpacity+';filter:alpha(opacity='+(op.overlayOpacity*100)+
');top:0;left:0;width:100%;height:100%;background:'+op.overlayBackground+';z-index:99990',
box: 'position:fixed;display:none;width:400px;height:400px;top:50%;left:50%;margin-top:-200px;margin-left:-200px;z-index:99991',
shadow: abs+'background:#000;width:100%;height:100%;',
content: abs+'background-color:#fff;top:10px;left:10px;right:10px;bottom:10px;overflow:hidden',
info: abs+'bottom:10px;left:10px;right:10px;color:#444;font:11px/13px arial,sans-serif;height:13px',
close: abs+'top:10px;right:10px;height:20px;width:20px;background:#fff;text-align:center;cursor:pointer;color:#444;font:16px/22px arial,sans-serif;z-index:99999',
image: abs+'top:10px;left:10px;right:10px;bottom:30px;overflow:hidden;display:block;',
prevholder: abs+'width:50%;top:0;bottom:40px;cursor:pointer;',
nextholder: abs+'width:50%;top:0;bottom:40px;right:-1px;cursor:pointer;',
prev: abs+'top:50%;margin-top:-20px;height:40px;width:30px;background:#fff;left:20px;display:none;text-align:center;color:#000;font:bold 16px/36px arial,sans-serif',
next: abs+'top:50%;margin-top:-20px;height:40px;width:30px;background:#fff;right:20px;left:auto;display:none;font:bold 16px/36px arial,sans-serif;text-align:center;color:#000',
title: 'float:left',
counter: 'float:right;margin-left:8px;'
},
hover = function(elem) {
return elem.hover(
function() { $(this).css( 'color', '#bbb' ); },
function() { $(this).css( 'color', '#444' ); }
);
},
appends = {};
// fix for navigation hovers transparent background event "feature"
var exs = '';
if ( IE > 7 ) {
exs = IE < 9 ? 'background:#000;filter:alpha(opacity=0);' : 'background:rgba(0,0,0,0);';
} else {
exs = 'z-index:99999';
}
cssMap.nextholder += exs;
cssMap.prevholder += exs;
// create and insert CSS
$.each(cssMap, function( key, value ) {
css += '.galleria-'+prefix+key+'{'+value+'}';
});
css += '.galleria-'+prefix+'box.iframe .galleria-'+prefix+'prevholder,'+
'.galleria-'+prefix+'box.iframe .galleria-'+prefix+'nextholder{'+
'width:100px;height:100px;top:50%;margin-top:-70px}';
Utils.insertStyleTag( css, 'galleria-lightbox' );
// create the elements
$.each(elems.split(' '), function( i, elemId ) {
self.addElement( 'lightbox-' + elemId );
el[ elemId ] = lightbox.elems[ elemId ] = self.get( 'lightbox-' + elemId );
});
// initiate the image
lightbox.image = new Galleria.Picture();
// append the elements
$.each({
box: 'shadow content close prevholder nextholder',
info: 'title counter',
content: 'info image',
prevholder: 'prev',
nextholder: 'next'
}, function( key, val ) {
var arr = [];
$.each( val.split(' '), function( i, prop ) {
arr.push( prefix + prop );
});
appends[ prefix+key ] = arr;
});
self.append( appends );
$( el.image ).append( lightbox.image.container );
$( DOM().body ).append( el.overlay, el.box );
// add the prev/next nav and bind some controls
hover( $( el.close ).on( 'click:fast', lightbox.hide ).html('×') );
$.each( ['Prev','Next'], function(i, dir) {
var $d = $( el[ dir.toLowerCase() ] ).html( /v/.test( dir ) ? '‹ ' : ' ›' ),
$e = $( el[ dir.toLowerCase()+'holder'] );
$e.on( 'click:fast', function() {
lightbox[ 'show' + dir ]();
});
// IE7 and touch devices will simply show the nav
if ( IE < 8 || Galleria.TOUCH ) {
$d.show();
return;
}
$e.hover( function() {
$d.show();
}, function(e) {
$d.stop().fadeOut( 200 );
});
});
$( el.overlay ).on( 'click:fast', lightbox.hide );
// the lightbox animation is slow on ipad
if ( Galleria.IPAD ) {
self._options.lightboxTransitionSpeed = 0;
}
},
rescale: function(event) {
// calculate
var width = M.min( $win.width()-40, lightbox.width ),
height = M.min( $win.height()-60, lightbox.height ),
ratio = M.min( width / lightbox.width, height / lightbox.height ),
destWidth = M.round( lightbox.width * ratio ) + 40,
destHeight = M.round( lightbox.height * ratio ) + 60,
to = {
width: destWidth,
height: destHeight,
'margin-top': M.ceil( destHeight / 2 ) *- 1,
'margin-left': M.ceil( destWidth / 2 ) *- 1
};
// if rescale event, don't animate
if ( event ) {
$( lightbox.elems.box ).css( to );
} else {
$( lightbox.elems.box ).animate( to, {
duration: self._options.lightboxTransitionSpeed,
easing: self._options.easing,
complete: function() {
var image = lightbox.image,
speed = self._options.lightboxFadeSpeed;
self.trigger({
type: Galleria.LIGHTBOX_IMAGE,
imageTarget: image.image
});
$( image.container ).show();
$( image.image ).animate({ opacity: 1 }, speed);
Utils.show( lightbox.elems.info, speed );
}
});
}
},
hide: function() {
// remove the image
lightbox.image.image = null;
$win.off('resize', lightbox.rescale);
$( lightbox.elems.box ).hide().find( 'iframe' ).remove();
Utils.hide( lightbox.elems.info );
self.detachKeyboard();
self.attachKeyboard( lightbox.keymap );
lightbox.keymap = false;
Utils.hide( lightbox.elems.overlay, 200, function() {
$( this ).hide().css( 'opacity', self._options.overlayOpacity );
self.trigger( Galleria.LIGHTBOX_CLOSE );
});
},
showNext: function() {
lightbox.show( self.getNext( lightbox.active ) );
},
showPrev: function() {
lightbox.show( self.getPrev( lightbox.active ) );
},
show: function(index) {
lightbox.active = index = typeof index === 'number' ? index : self.getIndex() || 0;
if ( !lightbox.initialized ) {
lightbox.init();
}
// trigger the event
self.trigger( Galleria.LIGHTBOX_OPEN );
// temporarily attach some keys
// save the old ones first in a cloned object
if ( !lightbox.keymap ) {
lightbox.keymap = $.extend({}, self._keyboard.map);
self.attachKeyboard({
escape: lightbox.hide,
right: lightbox.showNext,
left: lightbox.showPrev
});
}
$win.off('resize', lightbox.rescale );
var data = self.getData(index),
total = self.getDataLength(),
n = self.getNext( index ),
ndata, p, i;
Utils.hide( lightbox.elems.info );
try {
for ( i = self._options.preload; i > 0; i-- ) {
p = new Galleria.Picture();
ndata = self.getData( n );
p.preload( ndata.big ? ndata.big : ndata.image );
n = self.getNext( n );
}
} catch(e) {}
lightbox.image.isIframe = ( data.iframe && !data.image );
$( lightbox.elems.box ).toggleClass( 'iframe', lightbox.image.isIframe );
$( lightbox.image.container ).find( '.galleria-videoicon' ).remove();
lightbox.image.load( data.big || data.image || data.iframe, function( image ) {
if ( image.isIframe ) {
var cw = $(window).width(),
ch = $(window).height();
if ( image.video && self._options.maxVideoSize ) {
var r = M.min( self._options.maxVideoSize/cw, self._options.maxVideoSize/ch );
if ( r < 1 ) {
cw *= r;
ch *= r;
}
}
lightbox.width = cw;
lightbox.height = ch;
} else {
lightbox.width = image.original.width;
lightbox.height = image.original.height;
}
$( image.image ).css({
width: image.isIframe ? '100%' : '100.1%',
height: image.isIframe ? '100%' : '100.1%',
top: 0,
bottom: 0,
zIndex: 99998,
opacity: 0,
visibility: 'visible'
}).parent().height('100%');
lightbox.elems.title.innerHTML = data.title || '';
lightbox.elems.counter.innerHTML = (index + 1) + ' / ' + total;
$win.resize( lightbox.rescale );
lightbox.rescale();
if( data.image && data.iframe ) {
$( lightbox.elems.box ).addClass('iframe');
if ( data.video ) {
var $icon = _playIcon( image.container ).hide();
window.setTimeout(function() {
$icon.fadeIn(200);
}, 200);
}
$( image.image ).css( 'cursor', 'pointer' ).mouseup((function(data, image) {
return function(e) {
$( lightbox.image.container ).find( '.galleria-videoicon' ).remove();
e.preventDefault();
image.isIframe = true;
image.load( data.iframe + ( data.video ? '&autoplay=1' : '' ), {
width: '100%',
height: IE < 8 ? $( lightbox.image.container ).height() : '100%'
});
};
}(data, image)));
}
});
$( lightbox.elems.overlay ).show().css( 'visibility', 'visible' );
$( lightbox.elems.box ).show();
}
};
// the internal timeouts object
// provides helper methods for controlling timeouts
var _timer = this._timer = {
trunk: {},
add: function( id, fn, delay, loop ) {
id = id || new Date().getTime();
loop = loop || false;
this.clear( id );
if ( loop ) {
var old = fn;
fn = function() {
old();
_timer.add( id, fn, delay );
};
}
this.trunk[ id ] = window.setTimeout( fn, delay );
},
clear: function( id ) {
var del = function( i ) {
window.clearTimeout( this.trunk[ i ] );
delete this.trunk[ i ];
}, i;
if ( !!id && id in this.trunk ) {
del.call( this, id );
} else if ( typeof id === 'undefined' ) {
for ( i in this.trunk ) {
if ( this.trunk.hasOwnProperty( i ) ) {
del.call( this, i );
}
}
}
}
};
return this;
};
// end Galleria constructor
Galleria.prototype = {
// bring back the constructor reference
constructor: Galleria,
/**
Use this function to initialize the gallery and start loading.
Should only be called once per instance.
@param {HTMLElement} target The target element
@param {Object} options The gallery options
@returns Instance
*/
init: function( target, options ) {
options = _legacyOptions( options );
// save the original ingredients
this._original = {
target: target,
options: options,
data: null
};
// save the target here
this._target = this._dom.target = target.nodeName ? target : $( target ).get(0);
// save the original content for destruction
this._original.html = this._target.innerHTML;
// push the instance
_instances.push( this );
// raise error if no target is detected
if ( !this._target ) {
Galleria.raise('Target not found', true);
return;
}
// apply options
this._options = {
autoplay: false,
carousel: true,
carouselFollow: true, // legacy, deprecate at 1.3
carouselSpeed: 400,
carouselSteps: 'auto',
clicknext: false,
dailymotion: {
foreground: '%23EEEEEE',
highlight: '%235BCEC5',
background: '%23222222',
logo: 0,
hideInfos: 1
},
dataConfig : function( elem ) { return {}; },
dataSelector: 'img',
dataSort: false,
dataSource: this._target,
debug: undef,
dummy: undef, // 1.2.5
easing: 'galleria',
extend: function(options) {},
fullscreenCrop: undef, // 1.2.5
fullscreenDoubleTap: true, // 1.2.4 toggles fullscreen on double-tap for touch devices
fullscreenTransition: undef, // 1.2.6
height: 0,
idleMode: true, // 1.2.4 toggles idleMode
idleTime: 3000,
idleSpeed: 200,
imageCrop: false,
imageMargin: 0,
imagePan: false,
imagePanSmoothness: 12,
imagePosition: '50%',
imageTimeout: undef, // 1.2.5
initialTransition: undef, // 1.2.4, replaces transitionInitial
keepSource: false,
layerFollow: true, // 1.2.5
lightbox: false, // 1.2.3
lightboxFadeSpeed: 200,
lightboxTransitionSpeed: 200,
linkSourceImages: true,
maxScaleRatio: undef,
maxVideoSize: undef, // 1.2.9
minScaleRatio: undef, // deprecated in 1.2.9
overlayOpacity: 0.85,
overlayBackground: '#0b0b0b',
pauseOnInteraction: true,
popupLinks: false,
preload: 2,
queue: true,
responsive: true,
show: 0,
showInfo: true,
showCounter: true,
showImagenav: true,
swipe: 'auto', // 1.2.4 -> revised in 1.3 -> changed type in 1.3.5
theme: null,
thumbCrop: true,
thumbEventType: 'click:fast',
thumbMargin: 0,
thumbQuality: 'auto',
thumbDisplayOrder: true, // 1.2.8
thumbPosition: '50%', // 1.3
thumbnails: true,
touchTransition: undef, // 1.2.6
transition: 'fade',
transitionInitial: undef, // legacy, deprecate in 1.3. Use initialTransition instead.
transitionSpeed: 400,
trueFullscreen: true, // 1.2.7
useCanvas: false, // 1.2.4
variation: '', // 1.3.2
videoPoster: true, // 1.3
vimeo: {
title: 0,
byline: 0,
portrait: 0,
color: 'aaaaaa'
},
wait: 5000, // 1.2.7
width: 'auto',
youtube: {
modestbranding: 1,
autohide: 1,
color: 'white',
hd: 1,
rel: 0,
showinfo: 0
}
};
// legacy support for transitionInitial
this._options.initialTransition = this._options.initialTransition || this._options.transitionInitial;
if ( options ) {
// turn off debug
if ( options.debug === false ) {
DEBUG = false;
}
// set timeout
if ( typeof options.imageTimeout === 'number' ) {
TIMEOUT = options.imageTimeout;
}
// set dummy
if ( typeof options.dummy === 'string' ) {
DUMMY = options.dummy;
}
// set theme
if ( typeof options.theme == 'string' ) {
this._options.theme = options.theme;
}
}
// hide all content
$( this._target ).children().hide();
// Warn for quirks mode
if ( Galleria.QUIRK ) {
Galleria.raise('Your page is in Quirks mode, Galleria may not render correctly. Please validate your HTML and add a correct doctype.');
}
// now we just have to wait for the theme...
// first check if it has already loaded
if ( _loadedThemes.length ) {
if ( this._options.theme ) {
for ( var i=0; i<_loadedThemes.length; i++ ) {
if( this._options.theme === _loadedThemes[i].name ) {
this.theme = _loadedThemes[i];
break;
}
}
} else {
// if no theme sepcified, apply the first loaded theme
this.theme = _loadedThemes[0];
}
}
if ( typeof this.theme == 'object' ) {
this._init();
} else {
// if no theme is loaded yet, push the instance into a pool and run it when the theme is ready
_pool.push( this );
}
return this;
},
// this method should only be called once per instance
// for manipulation of data, use the .load method
_init: function() {
var self = this,
options = this._options;
if ( this._initialized ) {
Galleria.raise( 'Init failed: Gallery instance already initialized.' );
return this;
}
this._initialized = true;
if ( !this.theme ) {
Galleria.raise( 'Init failed: No theme found.', true );
return this;
}
// merge the theme & caller options
$.extend( true, options, this.theme.defaults, this._original.options, Galleria.configure.options );
// internally we use boolean for swipe
options.swipe = (function(s) {
if ( s == 'enforced' ) { return true; }
// legacy patch
if( s === false || s == 'disabled' ) { return false; }
return !!Galleria.TOUCH;
}( options.swipe ));
// disable options that arent compatible with swipe
if ( options.swipe ) {
options.clicknext = false;
options.imagePan = false;
}
// check for canvas support
(function( can ) {
if ( !( 'getContext' in can ) ) {
can = null;
return;
}
_canvas = _canvas || {
elem: can,
context: can.getContext( '2d' ),
cache: {},
length: 0
};
}( doc.createElement( 'canvas' ) ) );
// bind the gallery to run when data is ready
this.bind( Galleria.DATA, function() {
// remove big if total pixels are less than 1024 (most phones)
if ( window.screen && window.screen.width && Array.prototype.forEach ) {
this._data.forEach(function(data) {
var density = 'devicePixelRatio' in window ? window.devicePixelRatio : 1,
m = M.max( window.screen.width, window.screen.height );
if ( m*density < 1024 ) {
data.big = data.image;
}
});
}
// save the new data
this._original.data = this._data;
// lets show the counter here
this.get('total').innerHTML = this.getDataLength();
// cache the container
var $container = this.$( 'container' );
// set ratio if height is < 2
if ( self._options.height < 2 ) {
self._userRatio = self._ratio = self._options.height;
}
// the gallery is ready, let's just wait for the css
var num = { width: 0, height: 0 };
var testHeight = function() {
return self.$( 'stage' ).height();
};
// check container and thumbnail height
Utils.wait({
until: function() {
// keep trying to get the value
num = self._getWH();
$container.width( num.width ).height( num.height );
return testHeight() && num.width && num.height > 50;
},
success: function() {
self._width = num.width;
self._height = num.height;
self._ratio = self._ratio || num.height/num.width;
// for some strange reason, webkit needs a single setTimeout to play ball
if ( Galleria.WEBKIT ) {
window.setTimeout( function() {
self._run();
}, 1);
} else {
self._run();
}
},
error: function() {
// Height was probably not set, raise hard errors
if ( testHeight() ) {
Galleria.raise('Could not extract sufficient width/height of the gallery container. Traced measures: width:' + num.width + 'px, height: ' + num.height + 'px.', true);
} else {
Galleria.raise('Could not extract a stage height from the CSS. Traced height: ' + testHeight() + 'px.', true);
}
},
timeout: typeof this._options.wait == 'number' ? this._options.wait : false
});
});
// build the gallery frame
this.append({
'info-text' :
['info-title', 'info-description'],
'info' :
['info-text'],
'image-nav' :
['image-nav-right', 'image-nav-left'],
'stage' :
['images', 'loader', 'counter', 'image-nav'],
'thumbnails-list' :
['thumbnails'],
'thumbnails-container' :
['thumb-nav-left', 'thumbnails-list', 'thumb-nav-right'],
'container' :
['stage', 'thumbnails-container', 'info', 'tooltip']
});
Utils.hide( this.$( 'counter' ).append(
this.get( 'current' ),
doc.createTextNode(' / '),
this.get( 'total' )
) );
this.setCounter('–');
Utils.hide( self.get('tooltip') );
// add a notouch class on the container to prevent unwanted :hovers on touch devices
this.$( 'container' ).addClass([
( Galleria.TOUCH ? 'touch' : 'notouch' ),
this._options.variation,
'galleria-theme-'+this.theme.name
].join(' '));
// add images to the controls
if ( !this._options.swipe ) {
$.each( new Array(2), function( i ) {
// create a new Picture instance
var image = new Galleria.Picture();
// apply some styles, create & prepend overlay
$( image.container ).css({
position: 'absolute',
top: 0,
left: 0
}).prepend( self._layers[i] = $( Utils.create('galleria-layer') ).css({
position: 'absolute',
top:0, left:0, right:0, bottom:0,
zIndex:2
})[0] );
// append the image
self.$( 'images' ).append( image.container );
// reload the controls
self._controls[i] = image;
// build a frame
var frame = new Galleria.Picture();
frame.isIframe = true;
$( frame.container ).attr('class', 'galleria-frame').css({
position: 'absolute',
top: 0,
left: 0,
zIndex: 4,
background: '#000',
display: 'none'
}).appendTo( image.container );
self._controls.frames[i] = frame;
});
}
// some forced generic styling
this.$( 'images' ).css({
position: 'relative',
top: 0,
left: 0,
width: '100%',
height: '100%'
});
if ( options.swipe ) {
this.$( 'images' ).css({
position: 'absolute',
top: 0,
left: 0,
width: 0,
height: '100%'
});
this.finger = new Galleria.Finger(this.get('stage'), {
onchange: function(page) {
self.pause().show(page);
},
oncomplete: function(page) {
var index = M.max( 0, M.min( parseInt( page, 10 ), self.getDataLength() - 1 ) ),
data = self.getData(index);
$( self._thumbnails[ index ].container )
.addClass( 'active' )
.siblings( '.active' )
.removeClass( 'active' );
if ( !data ) {
return;
}
// remove video iframes
self.$( 'images' ).find( '.galleria-frame' ).css('opacity', 0).hide().find( 'iframe' ).remove();
if ( self._options.carousel && self._options.carouselFollow ) {
self._carousel.follow( index );
}
}
});
this.bind( Galleria.RESCALE, function() {
this.finger.setup();
});
this.$('stage').on('click', function(e) {
var data = self.getData();
if ( !data ) {
return;
}
if ( data.iframe ) {
if ( self.isPlaying() ) {
self.pause();
}
var frame = self._controls.frames[ self._active ],
w = self._stageWidth,
h = self._stageHeight;
if ( $( frame.container ).find( 'iframe' ).length ) {
return;
}
$( frame.container ).css({
width: w,
height: h,
opacity: 0
}).show().animate({
opacity: 1
}, 200);
window.setTimeout(function() {
frame.load( data.iframe + ( data.video ? '&autoplay=1' : '' ), {
width: w,
height: h
}, function( frame ) {
self.$( 'container' ).addClass( 'videoplay' );
frame.scale({
width: self._stageWidth,
height: self._stageHeight,
iframelimit: data.video ? self._options.maxVideoSize : undef
});
});
}, 100);
return;
}
if ( data.link ) {
if ( self._options.popupLinks ) {
var win = window.open( data.link, '_blank' );
} else {
window.location.href = data.link;
}
return;
}
});
this.bind( Galleria.IMAGE, function(e) {
self.setCounter( e.index );
self.setInfo( e.index );
var next = this.getNext(),
prev = this.getPrev();
var preloads = [prev,next];
preloads.push(this.getNext(next), this.getPrev(prev), self._controls.slides.length-1);
var filtered = [];
$.each(preloads, function(i, val) {
if ( $.inArray(val, filtered) == -1 ) {
filtered.push(val);
}
});
$.each(filtered, function(i, loadme) {
var d = self.getData(loadme),
img = self._controls.slides[loadme],
src = self.isFullscreen() && d.big ? d.big : ( d.image || d.iframe );
if ( d.iframe && !d.image ) {
img.isIframe = true;
}
if ( !img.ready ) {
self._controls.slides[loadme].load(src, function(img) {
if ( !img.isIframe ) {
$(img.image).css('visibility', 'hidden');
}
self._scaleImage(img, {
complete: function(img) {
if ( !img.isIframe ) {
$(img.image).css({
opacity: 0,
visibility: 'visible'
}).animate({
opacity: 1
}, 200);
}
}
});
});
}
});
});
}
this.$( 'thumbnails, thumbnails-list' ).css({
overflow: 'hidden',
position: 'relative'
});
// bind image navigation arrows
this.$( 'image-nav-right, image-nav-left' ).on( 'click:fast', function(e) {
// pause if options is set
if ( options.pauseOnInteraction ) {
self.pause();
}
// navigate
var fn = /right/.test( this.className ) ? 'next' : 'prev';
self[ fn ]();
}).on('click', function(e) {
e.preventDefault();
// tune the clicknext option
if ( options.clicknext || options.swipe ) {
e.stopPropagation();
}
});
// hide controls if chosen to
$.each( ['info','counter','image-nav'], function( i, el ) {
if ( options[ 'show' + el.substr(0,1).toUpperCase() + el.substr(1).replace(/-/,'') ] === false ) {
Utils.moveOut( self.get( el.toLowerCase() ) );
}
});
// load up target content
this.load();
// now it's usually safe to remove the content
// IE will never stop loading if we remove it, so let's keep it hidden for IE (it's usually fast enough anyway)
if ( !options.keepSource && !IE ) {
this._target.innerHTML = '';
}
// re-append the errors, if they happened before clearing
if ( this.get( 'errors' ) ) {
this.appendChild( 'target', 'errors' );
}
// append the gallery frame
this.appendChild( 'target', 'container' );
// parse the carousel on each thumb load
if ( options.carousel ) {
var count = 0,
show = options.show;
this.bind( Galleria.THUMBNAIL, function() {
this.updateCarousel();
if ( ++count == this.getDataLength() && typeof show == 'number' && show > 0 ) {
this._carousel.follow( show );
}
});
}
// bind window resize for responsiveness
if ( options.responsive ) {
$win.on( 'resize', function() {
if ( !self.isFullscreen() ) {
self.resize();
}
});
}
// double-tap/click fullscreen toggle
if ( options.fullscreenDoubleTap ) {
this.$( 'stage' ).on( 'touchstart', (function() {
var last, cx, cy, lx, ly, now,
getData = function(e) {
return e.originalEvent.touches ? e.originalEvent.touches[0] : e;
};
self.$( 'stage' ).on('touchmove', function() {
last = 0;
});
return function(e) {
if( /(-left|-right)/.test(e.target.className) ) {
return;
}
now = Utils.timestamp();
cx = getData(e).pageX;
cy = getData(e).pageY;
if ( e.originalEvent.touches.length < 2 && ( now - last < 300 ) && ( cx - lx < 20) && ( cy - ly < 20) ) {
self.toggleFullscreen();
e.preventDefault();
return;
}
last = now;
lx = cx;
ly = cy;
};
}()));
}
// bind the ons
$.each( Galleria.on.binds, function(i, bind) {
// check if already bound
if ( $.inArray( bind.hash, self._binds ) == -1 ) {
self.bind( bind.type, bind.callback );
}
});
return this;
},
addTimer : function() {
this._timer.add.apply( this._timer, Utils.array( arguments ) );
return this;
},
clearTimer : function() {
this._timer.clear.apply( this._timer, Utils.array( arguments ) );
return this;
},
// parse width & height from CSS or options
_getWH : function() {
var $container = this.$( 'container' ),
$target = this.$( 'target' ),
self = this,
num = {},
arr;
$.each(['width', 'height'], function( i, m ) {
// first check if options is set
if ( self._options[ m ] && typeof self._options[ m ] === 'number') {
num[ m ] = self._options[ m ];
} else {
arr = [
Utils.parseValue( $container.css( m ) ), // the container css height
Utils.parseValue( $target.css( m ) ), // the target css height
$container[ m ](), // the container jQuery method
$target[ m ]() // the target jQuery method
];
// if first time, include the min-width & min-height
if ( !self[ '_'+m ] ) {
arr.splice(arr.length,
Utils.parseValue( $container.css( 'min-'+m ) ),
Utils.parseValue( $target.css( 'min-'+m ) )
);
}
// else extract the measures from different sources and grab the highest value
num[ m ] = M.max.apply( M, arr );
}
});
// allow setting a height ratio instead of exact value
// useful when doing responsive galleries
if ( self._userRatio ) {
num.height = num.width * self._userRatio;
}
return num;
},
// Creates the thumbnails and carousel
// can be used at any time, f.ex when the data object is manipulated
// push is an optional argument with pushed images
_createThumbnails : function( push ) {
this.get( 'total' ).innerHTML = this.getDataLength();
var src,
thumb,
data,
$container,
self = this,
o = this._options,
i = push ? this._data.length - push.length : 0,
chunk = i,
thumbchunk = [],
loadindex = 0,
gif = IE < 8 ? 'http://upload.wikimedia.org/wikipedia/commons/c/c0/Blank.gif' :
'data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw%3D%3D',
// get previously active thumbnail, if exists
active = (function() {
var a = self.$('thumbnails').find('.active');
if ( !a.length ) {
return false;
}
return a.find('img').attr('src');
}()),
// cache the thumbnail option
optval = typeof o.thumbnails === 'string' ? o.thumbnails.toLowerCase() : null,
// move some data into the instance
// for some reason, jQuery cant handle css(property) when zooming in FF, breaking the gallery
// so we resort to getComputedStyle for browsers who support it
getStyle = function( prop ) {
return doc.defaultView && doc.defaultView.getComputedStyle ?
doc.defaultView.getComputedStyle( thumb.container, null )[ prop ] :
$container.css( prop );
},
fake = function(image, index, container) {
return function() {
$( container ).append( image );
self.trigger({
type: Galleria.THUMBNAIL,
thumbTarget: image,
index: index,
galleriaData: self.getData( index )
});
};
},
onThumbEvent = function( e ) {
// pause if option is set
if ( o.pauseOnInteraction ) {
self.pause();
}
// extract the index from the data
var index = $( e.currentTarget ).data( 'index' );
if ( self.getIndex() !== index ) {
self.show( index );
}
e.preventDefault();
},
thumbComplete = function( thumb, callback ) {
$( thumb.container ).css( 'visibility', 'visible' );
self.trigger({
type: Galleria.THUMBNAIL,
thumbTarget: thumb.image,
index: thumb.data.order,
galleriaData: self.getData( thumb.data.order )
});
if ( typeof callback == 'function' ) {
callback.call( self, thumb );
}
},
onThumbLoad = function( thumb, callback ) {
// scale when ready
thumb.scale({
width: thumb.data.width,
height: thumb.data.height,
crop: o.thumbCrop,
margin: o.thumbMargin,
canvas: o.useCanvas,
position: o.thumbPosition,
complete: function( thumb ) {
// shrink thumbnails to fit
var top = ['left', 'top'],
arr = ['Width', 'Height'],
m,
css,
data = self.getData( thumb.index );
// calculate shrinked positions
$.each(arr, function( i, measure ) {
m = measure.toLowerCase();
if ( (o.thumbCrop !== true || o.thumbCrop === m ) ) {
css = {};
css[ m ] = thumb[ m ];
$( thumb.container ).css( css );
css = {};
css[ top[ i ] ] = 0;
$( thumb.image ).css( css );
}
// cache outer measures
thumb[ 'outer' + measure ] = $( thumb.container )[ 'outer' + measure ]( true );
});
// set high quality if downscale is moderate
Utils.toggleQuality( thumb.image,
o.thumbQuality === true ||
( o.thumbQuality === 'auto' && thumb.original.width < thumb.width * 3 )
);
if ( o.thumbDisplayOrder && !thumb.lazy ) {
$.each( thumbchunk, function( i, th ) {
if ( i === loadindex && th.ready && !th.displayed ) {
loadindex++;
th.displayed = true;
thumbComplete( th, callback );
return;
}
});
} else {
thumbComplete( thumb, callback );
}
}
});
};
if ( !push ) {
this._thumbnails = [];
this.$( 'thumbnails' ).empty();
}
// loop through data and create thumbnails
for( ; this._data[ i ]; i++ ) {
data = this._data[ i ];
// get source from thumb or image
src = data.thumb || data.image;
if ( ( o.thumbnails === true || optval == 'lazy' ) && ( data.thumb || data.image ) ) {
// add a new Picture instance
thumb = new Galleria.Picture(i);
// save the index
thumb.index = i;
// flag displayed
thumb.displayed = false;
// flag lazy
thumb.lazy = false;
// flag video
thumb.video = false;
// append the thumbnail
this.$( 'thumbnails' ).append( thumb.container );
// cache the container
$container = $( thumb.container );
// hide it
$container.css( 'visibility', 'hidden' );
thumb.data = {
width : Utils.parseValue( getStyle( 'width' ) ),
height : Utils.parseValue( getStyle( 'height' ) ),
order : i,
src : src
};
// grab & reset size for smoother thumbnail loads
if ( o.thumbCrop !== true ) {
$container.css( { width: 'auto', height: 'auto' } );
} else {
$container.css( { width: thumb.data.width, height: thumb.data.height } );
}
// load the thumbnail
if ( optval == 'lazy' ) {
$container.addClass( 'lazy' );
thumb.lazy = true;
thumb.load( gif, {
height: thumb.data.height,
width: thumb.data.width
});
} else {
thumb.load( src, onThumbLoad );
}
// preload all images here
if ( o.preload === 'all' ) {
thumb.preload( data.image );
}
// create empty spans if thumbnails is set to 'empty'
} else if ( ( data.iframe && optval !== null ) || optval === 'empty' || optval === 'numbers' ) {
thumb = {
container: Utils.create( 'galleria-image' ),
image: Utils.create( 'img', 'span' ),
ready: true,
data: {
order: i
}
};
// create numbered thumbnails
if ( optval === 'numbers' ) {
$( thumb.image ).text( i + 1 );
}
if ( data.iframe ) {
$( thumb.image ).addClass( 'iframe' );
}
this.$( 'thumbnails' ).append( thumb.container );
// we need to "fake" a loading delay before we append and trigger
// 50+ should be enough
window.setTimeout( ( fake )( thumb.image, i, thumb.container ), 50 + ( i*20 ) );
// create null object to silent errors
} else {
thumb = {
container: null,
image: null
};
}
// add events for thumbnails
// you can control the event type using thumb_event_type
// we'll add the same event to the source if it's kept
$( thumb.container ).add( o.keepSource && o.linkSourceImages ? data.original : null )
.data('index', i).on( o.thumbEventType, onThumbEvent )
.data('thumbload', onThumbLoad);
if (active === src) {
$( thumb.container ).addClass( 'active' );
}
this._thumbnails.push( thumb );
}
thumbchunk = this._thumbnails.slice( chunk );
return this;
},
/**
Lazy-loads thumbnails.
You can call this method to load lazy thumbnails at run time
@param {Array|Number} index Index or array of indexes of thumbnails to be loaded
@param {Function} complete Callback that is called when all lazy thumbnails have been loaded
@returns Instance
*/
lazyLoad: function( index, complete ) {
var arr = index.constructor == Array ? index : [ index ],
self = this,
loaded = 0;
$.each( arr, function(i, ind) {
if ( ind > self._thumbnails.length - 1 ) {
return;
}
var thumb = self._thumbnails[ ind ],
data = thumb.data,
callback = function() {
if ( ++loaded == arr.length && typeof complete == 'function' ) {
complete.call( self );
}
},
thumbload = $( thumb.container ).data( 'thumbload' );
if ( thumb.video ) {
thumbload.call( self, thumb, callback );
} else {
thumb.load( data.src , function( thumb ) {
thumbload.call( self, thumb, callback );
});
}
});
return this;
},
/**
Lazy-loads thumbnails in chunks.
This method automatcally chops up the loading process of many thumbnails into chunks
@param {Number} size Size of each chunk to be loaded
@param {Number} [delay] Delay between each loads
@returns Instance
*/
lazyLoadChunks: function( size, delay ) {
var len = this.getDataLength(),
i = 0,
n = 0,
arr = [],
temp = [],
self = this;
delay = delay || 0;
for( ; i<len; i++ ) {
temp.push(i);
if ( ++n == size || i == len-1 ) {
arr.push( temp );
n = 0;
temp = [];
}
}
var init = function( wait ) {
var a = arr.shift();
if ( a ) {
window.setTimeout(function() {
self.lazyLoad(a, function() {
init( true );
});
}, ( delay && wait ) ? delay : 0 );
}
};
init( false );
return this;
},
// the internal _run method should be called after loading data into galleria
// makes sure the gallery has proper measurements before postrun & ready
_run : function() {
var self = this;
self._createThumbnails();
// make sure we have a stageHeight && stageWidth
Utils.wait({
timeout: 10000,
until: function() {
// Opera crap
if ( Galleria.OPERA ) {
self.$( 'stage' ).css( 'display', 'inline-block' );
}
self._stageWidth = self.$( 'stage' ).width();
self._stageHeight = self.$( 'stage' ).height();
return( self._stageWidth &&
self._stageHeight > 50 ); // what is an acceptable height?
},
success: function() {
// save the instance
_galleries.push( self );
// postrun some stuff after the gallery is ready
// create the touch slider
if ( self._options.swipe ) {
var $images = self.$( 'images' ).width( self.getDataLength() * self._stageWidth );
$.each( new Array( self.getDataLength() ), function(i) {
var image = new Galleria.Picture(),
data = self.getData(i);
$( image.container ).css({
position: 'absolute',
top: 0,
left: self._stageWidth*i
}).prepend( self._layers[i] = $( Utils.create('galleria-layer') ).css({
position: 'absolute',
top:0, left:0, right:0, bottom:0,
zIndex:2
})[0] ).appendTo( $images );
if( data.video ) {
_playIcon( image.container );
}
self._controls.slides.push(image);
var frame = new Galleria.Picture();
frame.isIframe = true;
$( frame.container ).attr('class', 'galleria-frame').css({
position: 'absolute',
top: 0,
left: 0,
zIndex: 4,
background: '#000',
display: 'none'
}).appendTo( image.container );
self._controls.frames.push(frame);
});
self.finger.setup();
}
// show counter
Utils.show( self.get('counter') );
// bind carousel nav
if ( self._options.carousel ) {
self._carousel.bindControls();
}
// start autoplay
if ( self._options.autoplay ) {
self.pause();
if ( typeof self._options.autoplay === 'number' ) {
self._playtime = self._options.autoplay;
}
self._playing = true;
}
// if second load, just do the show and return
if ( self._firstrun ) {
if ( self._options.autoplay ) {
self.trigger( Galleria.PLAY );
}
if ( typeof self._options.show === 'number' ) {
self.show( self._options.show );
}
return;
}
self._firstrun = true;
// initialize the History plugin
if ( Galleria.History ) {
// bind the show method
Galleria.History.change(function( value ) {
// if ID is NaN, the user pressed back from the first image
// return to previous address
if ( isNaN( value ) ) {
window.history.go(-1);
// else show the image
} else {
self.show( value, undef, true );
}
});
}
self.trigger( Galleria.READY );
// call the theme init method
self.theme.init.call( self, self._options );
// Trigger Galleria.ready
$.each( Galleria.ready.callbacks, function(i ,fn) {
if ( typeof fn == 'function' ) {
fn.call( self, self._options );
}
});
// call the extend option
self._options.extend.call( self, self._options );
// show the initial image
// first test for permalinks in history
if ( /^[0-9]{1,4}$/.test( HASH ) && Galleria.History ) {
self.show( HASH, undef, true );
} else if( self._data[ self._options.show ] ) {
self.show( self._options.show );
}
// play trigger
if ( self._options.autoplay ) {
self.trigger( Galleria.PLAY );
}
},
error: function() {
Galleria.raise('Stage width or height is too small to show the gallery. Traced measures: width:' + self._stageWidth + 'px, height: ' + self._stageHeight + 'px.', true);
}
});
},
/**
Loads data into the gallery.
You can call this method on an existing gallery to reload the gallery with new data.
@param {Array|string} [source] Optional JSON array of data or selector of where to find data in the document.
Defaults to the Galleria target or dataSource option.
@param {string} [selector] Optional element selector of what elements to parse.
Defaults to 'img'.
@param {Function} [config] Optional function to modify the data extraction proceedure from the selector.
See the dataConfig option for more information.
@returns Instance
*/
load : function( source, selector, config ) {
var self = this,
o = this._options;
// empty the data array
this._data = [];
// empty the thumbnails
this._thumbnails = [];
this.$('thumbnails').empty();
// shorten the arguments
if ( typeof selector === 'function' ) {
config = selector;
selector = null;
}
// use the source set by target
source = source || o.dataSource;
// use selector set by option
selector = selector || o.dataSelector;
// use the dataConfig set by option
config = config || o.dataConfig;
// if source is a true object, make it into an array
if( $.isPlainObject( source ) ) {
source = [source];
}
// check if the data is an array already
if ( $.isArray( source ) ) {
if ( this.validate( source ) ) {
this._data = source;
} else {
Galleria.raise( 'Load failed: JSON Array not valid.' );
}
} else {
// add .video and .iframe to the selector (1.2.7)
selector += ',.video,.iframe';
// loop through images and set data
$( source ).find( selector ).each( function( i, elem ) {
elem = $( elem );
var data = {},
parent = elem.parent(),
href = parent.attr( 'href' ),
rel = parent.attr( 'rel' );
if( href && ( elem[0].nodeName == 'IMG' || elem.hasClass('video') ) && _videoTest( href ) ) {
data.video = href;
} else if( href && elem.hasClass('iframe') ) {
data.iframe = href;
} else {
data.image = data.big = href;
}
if ( rel ) {
data.big = rel;
}
// alternative extraction from HTML5 data attribute, added in 1.2.7
$.each( 'big title description link layer image'.split(' '), function( i, val ) {
if ( elem.data(val) ) {
data[ val ] = elem.data(val).toString();
}
});
if ( !data.big ) {
data.big = data.image;
}
// mix default extractions with the hrefs and config
// and push it into the data array
self._data.push( $.extend({
title: elem.attr('title') || '',
thumb: elem.attr('src'),
image: elem.attr('src'),
big: elem.attr('src'),
description: elem.attr('alt') || '',
link: elem.attr('longdesc'),
original: elem.get(0) // saved as a reference
}, data, config( elem ) ) );
});
}
if ( typeof o.dataSort == 'function' ) {
protoArray.sort.call( this._data, o.dataSort );
} else if ( o.dataSort == 'random' ) {
this._data.sort( function() {
return M.round(M.random())-0.5;
});
}
// trigger the DATA event and return
if ( this.getDataLength() ) {
this._parseData( function() {
this.trigger( Galleria.DATA );
} );
}
return this;
},
// make sure the data works properly
_parseData : function( callback ) {
var self = this,
current,
ready = false,
onload = function() {
var complete = true;
$.each( self._data, function( i, data ) {
if ( data.loading ) {
complete = false;
return false;
}
});
if ( complete && !ready ) {
ready = true;
callback.call( self );
}
};
$.each( this._data, function( i, data ) {
current = self._data[ i ];
// copy image as thumb if no thumb exists
if ( 'thumb' in data === false ) {
current.thumb = data.image;
}
// copy image as big image if no biggie exists
if ( !data.big ) {
current.big = data.image;
}
// parse video
if ( 'video' in data ) {
var result = _videoTest( data.video );
if ( result ) {
current.iframe = new Video(result.provider, result.id ).embed() + (function() {
// add options
if ( typeof self._options[ result.provider ] == 'object' ) {
var str = '?', arr = [];
$.each( self._options[ result.provider ], function( key, val ) {
arr.push( key + '=' + val );
});
// small youtube specifics, perhaps move to _video later
if ( result.provider == 'youtube' ) {
arr = ['wmode=opaque'].concat(arr);
}
return str + arr.join('&');
}
return '';
}());
// pre-fetch video providers media
if( !current.thumb || !current.image ) {
$.each( ['thumb', 'image'], function( i, type ) {
if ( type == 'image' && !self._options.videoPoster ) {
current.image = undef;
return;
}
var video = new Video( result.provider, result.id );
if ( !current[ type ] ) {
current.loading = true;
video.getMedia( type, (function(current, type) {
return function(src) {
current[ type ] = src;
if ( type == 'image' && !current.big ) {
current.big = current.image;
}
delete current.loading;
onload();
};
}( current, type )));
}
});
}
}
}
});
onload();
return this;
},
/**
Destroy the Galleria instance and recover the original content
@example this.destroy();
@returns Instance
*/
destroy : function() {
this.$( 'target' ).data( 'galleria', null );
this.$( 'container' ).off( 'galleria' );
this.get( 'target' ).innerHTML = this._original.html;
this.clearTimer();
Utils.removeFromArray( _instances, this );
Utils.removeFromArray( _galleries, this );
if ( Galleria._waiters.length ) {
$.each( Galleria._waiters, function( i, w ) {
if ( w ) window.clearTimeout( w );
});
}
return this;
},
/**
Adds and/or removes images from the gallery
Works just like Array.splice
https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/splice
@example this.splice( 2, 4 ); // removes 4 images after the second image
@returns Instance
*/
splice : function() {
var self = this,
args = Utils.array( arguments );
window.setTimeout(function() {
protoArray.splice.apply( self._data, args );
self._parseData( function() {
self._createThumbnails();
});
},2);
return self;
},
/**
Append images to the gallery
Works just like Array.push
https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/push
@example this.push({ image: 'image1.jpg' }); // appends the image to the gallery
@returns Instance
*/
push : function() {
var self = this,
args = Utils.array( arguments );
if ( args.length == 1 && args[0].constructor == Array ) {
args = args[0];
}
window.setTimeout(function() {
protoArray.push.apply( self._data, args );
self._parseData( function() {
self._createThumbnails( args );
});
}, 2);
return self;
},
_getActive : function() {
return this._controls.getActive();
},
validate : function( data ) {
// todo: validate a custom data array
return true;
},
/**
Bind any event to Galleria
@param {string} type The Event type to listen for
@param {Function} fn The function to execute when the event is triggered
@example this.bind( 'image', function() { Galleria.log('image shown') });
@returns Instance
*/
bind : function(type, fn) {
// allow 'image' instead of Galleria.IMAGE
type = _patchEvent( type );
this.$( 'container' ).on( type, this.proxy(fn) );
return this;
},
/**
Unbind any event to Galleria
@param {string} type The Event type to forget
@returns Instance
*/
unbind : function(type) {
type = _patchEvent( type );
this.$( 'container' ).off( type );
return this;
},
/**
Manually trigger a Galleria event
@param {string} type The Event to trigger
@returns Instance
*/
trigger : function( type ) {
type = typeof type === 'object' ?
$.extend( type, { scope: this } ) :
{ type: _patchEvent( type ), scope: this };
this.$( 'container' ).trigger( type );
return this;
},
/**
Assign an "idle state" to any element.
The idle state will be applied after a certain amount of idle time
Useful to hide f.ex navigation when the gallery is inactive
@param {HTMLElement|string} elem The Dom node or selector to apply the idle state to
@param {Object} styles the CSS styles to apply when in idle mode
@param {Object} [from] the CSS styles to apply when in normal
@param {Boolean} [hide] set to true if you want to hide it first
@example addIdleState( this.get('image-nav'), { opacity: 0 });
@example addIdleState( '.galleria-image-nav', { top: -200 }, true);
@returns Instance
*/
addIdleState: function( elem, styles, from, hide ) {
this._idle.add.apply( this._idle, Utils.array( arguments ) );
return this;
},
/**
Removes any idle state previously set using addIdleState()
@param {HTMLElement|string} elem The Dom node or selector to remove the idle state from.
@returns Instance
*/
removeIdleState: function( elem ) {
this._idle.remove.apply( this._idle, Utils.array( arguments ) );
return this;
},
/**
Force Galleria to enter idle mode.
@returns Instance
*/
enterIdleMode: function() {
this._idle.hide();
return this;
},
/**
Force Galleria to exit idle mode.
@returns Instance
*/
exitIdleMode: function() {
this._idle.showAll();
return this;
},
/**
Enter FullScreen mode
@param {Function} callback the function to be executed when the fullscreen mode is fully applied.
@returns Instance
*/
enterFullscreen: function( callback ) {
this._fullscreen.enter.apply( this, Utils.array( arguments ) );
return this;
},
/**
Exits FullScreen mode
@param {Function} callback the function to be executed when the fullscreen mode is fully applied.
@returns Instance
*/
exitFullscreen: function( callback ) {
this._fullscreen.exit.apply( this, Utils.array( arguments ) );
return this;
},
/**
Toggle FullScreen mode
@param {Function} callback the function to be executed when the fullscreen mode is fully applied or removed.
@returns Instance
*/
toggleFullscreen: function( callback ) {
this._fullscreen[ this.isFullscreen() ? 'exit' : 'enter'].apply( this, Utils.array( arguments ) );
return this;
},
/**
Adds a tooltip to any element.
You can also call this method with an object as argument with elemID:value pairs to apply tooltips to (see examples)
@param {HTMLElement} elem The DOM Node to attach the event to
@param {string|Function} value The tooltip message. Can also be a function that returns a string.
@example this.bindTooltip( this.get('thumbnails'), 'My thumbnails');
@example this.bindTooltip( this.get('thumbnails'), function() { return 'My thumbs' });
@example this.bindTooltip( { image_nav: 'Navigation' });
@returns Instance
*/
bindTooltip: function( elem, value ) {
this._tooltip.bind.apply( this._tooltip, Utils.array(arguments) );
return this;
},
/**
Note: this method is deprecated. Use refreshTooltip() instead.
Redefine a tooltip.
Use this if you want to re-apply a tooltip value to an already bound tooltip element.
@param {HTMLElement} elem The DOM Node to attach the event to
@param {string|Function} value The tooltip message. Can also be a function that returns a string.
@returns Instance
*/
defineTooltip: function( elem, value ) {
this._tooltip.define.apply( this._tooltip, Utils.array(arguments) );
return this;
},
/**
Refresh a tooltip value.
Use this if you want to change the tooltip value at runtime, f.ex if you have a play/pause toggle.
@param {HTMLElement} elem The DOM Node that has a tooltip that should be refreshed
@returns Instance
*/
refreshTooltip: function( elem ) {
this._tooltip.show.apply( this._tooltip, Utils.array(arguments) );
return this;
},
/**
Open a pre-designed lightbox with the currently active image.
You can control some visuals using gallery options.
@returns Instance
*/
openLightbox: function() {
this._lightbox.show.apply( this._lightbox, Utils.array( arguments ) );
return this;
},
/**
Close the lightbox.
@returns Instance
*/
closeLightbox: function() {
this._lightbox.hide.apply( this._lightbox, Utils.array( arguments ) );
return this;
},
/**
Check if a variation exists
@returns {Boolean} If the variation has been applied
*/
hasVariation: function( variation ) {
return $.inArray( variation, this._options.variation.split(/\s+/) ) > -1;
},
/**
Get the currently active image element.
@returns {HTMLElement} The image element
*/
getActiveImage: function() {
var active = this._getActive();
return active ? active.image : undef;
},
/**
Get the currently active thumbnail element.
@returns {HTMLElement} The thumbnail element
*/
getActiveThumb: function() {
return this._thumbnails[ this._active ].image || undef;
},
/**
Get the mouse position relative to the gallery container
@param e The mouse event
@example
var gallery = this;
$(document).mousemove(function(e) {
console.log( gallery.getMousePosition(e).x );
});
@returns {Object} Object with x & y of the relative mouse postion
*/
getMousePosition : function(e) {
return {
x: e.pageX - this.$( 'container' ).offset().left,
y: e.pageY - this.$( 'container' ).offset().top
};
},
/**
Adds a panning effect to the image
@param [img] The optional image element. If not specified it takes the currently active image
@returns Instance
*/
addPan : function( img ) {
if ( this._options.imageCrop === false ) {
return;
}
img = $( img || this.getActiveImage() );
// define some variables and methods
var self = this,
x = img.width() / 2,
y = img.height() / 2,
destX = parseInt( img.css( 'left' ), 10 ),
destY = parseInt( img.css( 'top' ), 10 ),
curX = destX || 0,
curY = destY || 0,
distX = 0,
distY = 0,
active = false,
ts = Utils.timestamp(),
cache = 0,
move = 0,
// positions the image
position = function( dist, cur, pos ) {
if ( dist > 0 ) {
move = M.round( M.max( dist * -1, M.min( 0, cur ) ) );
if ( cache !== move ) {
cache = move;
if ( IE === 8 ) { // scroll is faster for IE
img.parent()[ 'scroll' + pos ]( move * -1 );
} else {
var css = {};
css[ pos.toLowerCase() ] = move;
img.css(css);
}
}
}
},
// calculates mouse position after 50ms
calculate = function(e) {
if (Utils.timestamp() - ts < 50) {
return;
}
active = true;
x = self.getMousePosition(e).x;
y = self.getMousePosition(e).y;
},
// the main loop to check
loop = function(e) {
if (!active) {
return;
}
distX = img.width() - self._stageWidth;
distY = img.height() - self._stageHeight;
destX = x / self._stageWidth * distX * -1;
destY = y / self._stageHeight * distY * -1;
curX += ( destX - curX ) / self._options.imagePanSmoothness;
curY += ( destY - curY ) / self._options.imagePanSmoothness;
position( distY, curY, 'Top' );
position( distX, curX, 'Left' );
};
// we need to use scroll in IE8 to speed things up
if ( IE === 8 ) {
img.parent().scrollTop( curY * -1 ).scrollLeft( curX * -1 );
img.css({
top: 0,
left: 0
});
}
// unbind and bind event
this.$( 'stage' ).off( 'mousemove', calculate ).on( 'mousemove', calculate );
// loop the loop
this.addTimer( 'pan' + self._id, loop, 50, true);
return this;
},
/**
Brings the scope into any callback
@param fn The callback to bring the scope into
@param [scope] Optional scope to bring
@example $('#fullscreen').click( this.proxy(function() { this.enterFullscreen(); }) )
@returns {Function} Return the callback with the gallery scope
*/
proxy : function( fn, scope ) {
if ( typeof fn !== 'function' ) {
return F;
}
scope = scope || this;
return function() {
return fn.apply( scope, Utils.array( arguments ) );
};
},
/**
Tells you the theme name of the gallery
@returns {String} theme name
*/
getThemeName : function() {
return this.theme.name;
},
/**
Removes the panning effect set by addPan()
@returns Instance
*/
removePan: function() {
// todo: doublecheck IE8
this.$( 'stage' ).off( 'mousemove' );
this.clearTimer( 'pan' + this._id );
return this;
},
/**
Adds an element to the Galleria DOM array.
When you add an element here, you can access it using element ID in many API calls
@param {string} id The element ID you wish to use. You can add many elements by adding more arguments.
@example addElement('mybutton');
@example addElement('mybutton','mylink');
@returns Instance
*/
addElement : function( id ) {
var dom = this._dom;
$.each( Utils.array(arguments), function( i, blueprint ) {
dom[ blueprint ] = Utils.create( 'galleria-' + blueprint );
});
return this;
},
/**
Attach keyboard events to Galleria
@param {Object} map The map object of events.
Possible keys are 'UP', 'DOWN', 'LEFT', 'RIGHT', 'RETURN', 'ESCAPE', 'BACKSPACE', and 'SPACE'.
@example
this.attachKeyboard({
right: this.next,
left: this.prev,
up: function() {
console.log( 'up key pressed' )
}
});
@returns Instance
*/
attachKeyboard : function( map ) {
this._keyboard.attach.apply( this._keyboard, Utils.array( arguments ) );
return this;
},
/**
Detach all keyboard events to Galleria
@returns Instance
*/
detachKeyboard : function() {
this._keyboard.detach.apply( this._keyboard, Utils.array( arguments ) );
return this;
},
/**
Fast helper for appending galleria elements that you added using addElement()
@param {string} parentID The parent element ID where the element will be appended
@param {string} childID the element ID that should be appended
@example this.addElement('myElement');
this.appendChild( 'info', 'myElement' );
@returns Instance
*/
appendChild : function( parentID, childID ) {
this.$( parentID ).append( this.get( childID ) || childID );
return this;
},
/**
Fast helper for prepending galleria elements that you added using addElement()
@param {string} parentID The parent element ID where the element will be prepended
@param {string} childID the element ID that should be prepended
@example
this.addElement('myElement');
this.prependChild( 'info', 'myElement' );
@returns Instance
*/
prependChild : function( parentID, childID ) {
this.$( parentID ).prepend( this.get( childID ) || childID );
return this;
},
/**
Remove an element by blueprint
@param {string} elemID The element to be removed.
You can remove multiple elements by adding arguments.
@returns Instance
*/
remove : function( elemID ) {
this.$( Utils.array( arguments ).join(',') ).remove();
return this;
},
// a fast helper for building dom structures
// leave this out of the API for now
append : function( data ) {
var i, j;
for( i in data ) {
if ( data.hasOwnProperty( i ) ) {
if ( data[i].constructor === Array ) {
for( j = 0; data[i][j]; j++ ) {
this.appendChild( i, data[i][j] );
}
} else {
this.appendChild( i, data[i] );
}
}
}
return this;
},
// an internal helper for scaling according to options
_scaleImage : function( image, options ) {
image = image || this._controls.getActive();
// janpub (JH) fix:
// image might be unselected yet
// e.g. when external logics rescales the gallery on window resize events
if( !image ) {
return;
}
var complete,
scaleLayer = function( img ) {
$( img.container ).children(':first').css({
top: M.max(0, Utils.parseValue( img.image.style.top )),
left: M.max(0, Utils.parseValue( img.image.style.left )),
width: Utils.parseValue( img.image.width ),
height: Utils.parseValue( img.image.height )
});
};
options = $.extend({
width: this._stageWidth,
height: this._stageHeight,
crop: this._options.imageCrop,
max: this._options.maxScaleRatio,
min: this._options.minScaleRatio,
margin: this._options.imageMargin,
position: this._options.imagePosition,
iframelimit: this._options.maxVideoSize
}, options );
if ( this._options.layerFollow && this._options.imageCrop !== true ) {
if ( typeof options.complete == 'function' ) {
complete = options.complete;
options.complete = function() {
complete.call( image, image );
scaleLayer( image );
};
} else {
options.complete = scaleLayer;
}
} else {
$( image.container ).children(':first').css({ top: 0, left: 0 });
}
image.scale( options );
return this;
},
/**
Updates the carousel,
useful if you resize the gallery and want to re-check if the carousel nav is needed.
@returns Instance
*/
updateCarousel : function() {
this._carousel.update();
return this;
},
/**
Resize the entire gallery container
@param {Object} [measures] Optional object with width/height specified
@param {Function} [complete] The callback to be called when the scaling is complete
@returns Instance
*/
resize : function( measures, complete ) {
if ( typeof measures == 'function' ) {
complete = measures;
measures = undef;
}
measures = $.extend( { width:0, height:0 }, measures );
var self = this,
$container = this.$( 'container' );
$.each( measures, function( m, val ) {
if ( !val ) {
$container[ m ]( 'auto' );
measures[ m ] = self._getWH()[ m ];
}
});
$.each( measures, function( m, val ) {
$container[ m ]( val );
});
return this.rescale( complete );
},
/**
Rescales the gallery
@param {number} width The target width
@param {number} height The target height
@param {Function} complete The callback to be called when the scaling is complete
@returns Instance
*/
rescale : function( width, height, complete ) {
var self = this;
// allow rescale(fn)
if ( typeof width === 'function' ) {
complete = width;
width = undef;
}
var scale = function() {
// set stagewidth
self._stageWidth = width || self.$( 'stage' ).width();
self._stageHeight = height || self.$( 'stage' ).height();
if ( self._options.swipe ) {
$.each( self._controls.slides, function(i, img) {
self._scaleImage( img );
$( img.container ).css('left', self._stageWidth * i);
});
self.$('images').css('width', self._stageWidth * self.getDataLength());
} else {
// scale the active image
self._scaleImage();
}
if ( self._options.carousel ) {
self.updateCarousel();
}
var frame = self._controls.frames[ self._controls.active ];
if (frame) {
self._controls.frames[ self._controls.active ].scale({
width: self._stageWidth,
height: self._stageHeight,
iframelimit: self._options.maxVideoSize
});
}
self.trigger( Galleria.RESCALE );
if ( typeof complete === 'function' ) {
complete.call( self );
}
};
scale.call( self );
return this;
},
/**
Refreshes the gallery.
Useful if you change image options at runtime and want to apply the changes to the active image.
@returns Instance
*/
refreshImage : function() {
this._scaleImage();
if ( this._options.imagePan ) {
this.addPan();
}
return this;
},
_preload: function() {
if ( this._options.preload ) {
var p, i,
n = this.getNext(),
ndata;
try {
for ( i = this._options.preload; i > 0; i-- ) {
p = new Galleria.Picture();
ndata = this.getData( n );
p.preload( this.isFullscreen() && ndata.big ? ndata.big : ndata.image );
n = this.getNext( n );
}
} catch(e) {}
}
},
/**
Shows an image by index
@param {number|boolean} index The index to show
@param {Boolean} rewind A boolean that should be true if you want the transition to go back
@returns Instance
*/
show : function( index, rewind, _history ) {
var swipe = this._options.swipe;
// do nothing queue is long || index is false || queue is false and transition is in progress
if ( !swipe &&
( this._queue.length > 3 || index === false || ( !this._options.queue && this._queue.stalled ) ) ) {
return;
}
index = M.max( 0, M.min( parseInt( index, 10 ), this.getDataLength() - 1 ) );
rewind = typeof rewind !== 'undefined' ? !!rewind : index < this.getIndex();
_history = _history || false;
// do the history thing and return
if ( !_history && Galleria.History ) {
Galleria.History.set( index.toString() );
return;
}
if ( this.finger && index !== this._active ) {
this.finger.to = -( index*this.finger.width );
this.finger.index = index;
}
this._active = index;
// we do things a bit simpler in swipe:
if ( swipe ) {
var data = this.getData(index),
self = this;
if ( !data ) {
return;
}
var src = this.isFullscreen() && data.big ? data.big : ( data.image || data.iframe ),
image = this._controls.slides[index],
cached = image.isCached( src ),
thumb = this._thumbnails[ index ];
var evObj = {
cached: cached,
index: index,
rewind: rewind,
imageTarget: image.image,
thumbTarget: thumb.image,
galleriaData: data
};
this.trigger($.extend(evObj, {
type: Galleria.LOADSTART
}));
self.$('container').removeClass( 'videoplay' );
var complete = function() {
self._layers[index].innerHTML = self.getData().layer || '';
self.trigger($.extend(evObj, {
type: Galleria.LOADFINISH
}));
self._playCheck();
};
self._preload();
window.setTimeout(function() {
// load if not ready
if ( !image.ready || $(image.image).attr('src') != src ) {
if ( data.iframe && !data.image ) {
image.isIframe = true;
}
image.load(src, function(image) {
evObj.imageTarget = image.image;
self._scaleImage(image, complete).trigger($.extend(evObj, {
type: Galleria.IMAGE
}));
complete();
});
} else {
self.trigger($.extend(evObj, {
type: Galleria.IMAGE
}));
complete();
}
}, 100);
} else {
protoArray.push.call( this._queue, {
index : index,
rewind : rewind
});
if ( !this._queue.stalled ) {
this._show();
}
}
return this;
},
// the internal _show method does the actual showing
_show : function() {
// shortcuts
var self = this,
queue = this._queue[ 0 ],
data = this.getData( queue.index );
if ( !data ) {
return;
}
var src = this.isFullscreen() && data.big ? data.big : ( data.image || data.iframe ),
active = this._controls.getActive(),
next = this._controls.getNext(),
cached = next.isCached( src ),
thumb = this._thumbnails[ queue.index ],
mousetrigger = function() {
$( next.image ).trigger( 'mouseup' );
};
self.$('container').toggleClass('iframe', !!data.isIframe).removeClass( 'videoplay' );
// to be fired when loading & transition is complete:
var complete = (function( data, next, active, queue, thumb ) {
return function() {
var win;
_transitions.active = false;
// optimize quality
Utils.toggleQuality( next.image, self._options.imageQuality );
// remove old layer
self._layers[ self._controls.active ].innerHTML = '';
// swap
$( active.container ).css({
zIndex: 0,
opacity: 0
}).show();
$( active.container ).find( 'iframe, .galleria-videoicon' ).remove();
$( self._controls.frames[ self._controls.active ].container ).hide();
$( next.container ).css({
zIndex: 1,
left: 0,
top: 0
}).show();
self._controls.swap();
// add pan according to option
if ( self._options.imagePan ) {
self.addPan( next.image );
}
// make the image clickable
// order of precedence: iframe, link, lightbox, clicknext
if ( ( data.iframe && data.image ) || data.link || self._options.lightbox || self._options.clicknext ) {
$( next.image ).css({
cursor: 'pointer'
}).on( 'mouseup', function( e ) {
// non-left click
if ( typeof e.which == 'number' && e.which > 1 ) {
return;
}
// iframe / video
if ( data.iframe ) {
if ( self.isPlaying() ) {
self.pause();
}
var frame = self._controls.frames[ self._controls.active ],
w = self._stageWidth,
h = self._stageHeight;
$( frame.container ).css({
width: w,
height: h,
opacity: 0
}).show().animate({
opacity: 1
}, 200);
window.setTimeout(function() {
frame.load( data.iframe + ( data.video ? '&autoplay=1' : '' ), {
width: w,
height: h
}, function( frame ) {
self.$( 'container' ).addClass( 'videoplay' );
frame.scale({
width: self._stageWidth,
height: self._stageHeight,
iframelimit: data.video ? self._options.maxVideoSize : undef
});
});
}, 100);
return;
}
// clicknext
if ( self._options.clicknext && !Galleria.TOUCH ) {
if ( self._options.pauseOnInteraction ) {
self.pause();
}
self.next();
return;
}
// popup link
if ( data.link ) {
if ( self._options.popupLinks ) {
win = window.open( data.link, '_blank' );
} else {
window.location.href = data.link;
}
return;
}
if ( self._options.lightbox ) {
self.openLightbox();
}
});
}
// check if we are playing
self._playCheck();
// trigger IMAGE event
self.trigger({
type: Galleria.IMAGE,
index: queue.index,
imageTarget: next.image,
thumbTarget: thumb.image,
galleriaData: data
});
// remove the queued image
protoArray.shift.call( self._queue );
// remove stalled
self._queue.stalled = false;
// if we still have images in the queue, show it
if ( self._queue.length ) {
self._show();
}
};
}( data, next, active, queue, thumb ));
// let the carousel follow
if ( this._options.carousel && this._options.carouselFollow ) {
this._carousel.follow( queue.index );
}
// preload images
self._preload();
// show the next image, just in case
Utils.show( next.container );
next.isIframe = data.iframe && !data.image;
// add active classes
$( self._thumbnails[ queue.index ].container )
.addClass( 'active' )
.siblings( '.active' )
.removeClass( 'active' );
// trigger the LOADSTART event
self.trigger( {
type: Galleria.LOADSTART,
cached: cached,
index: queue.index,
rewind: queue.rewind,
imageTarget: next.image,
thumbTarget: thumb.image,
galleriaData: data
});
// stall the queue
self._queue.stalled = true;
// begin loading the next image
next.load( src, function( next ) {
// add layer HTML
var layer = $( self._layers[ 1-self._controls.active ] ).html( data.layer || '' ).hide();
self._scaleImage( next, {
complete: function( next ) {
// toggle low quality for IE
if ( 'image' in active ) {
Utils.toggleQuality( active.image, false );
}
Utils.toggleQuality( next.image, false );
// remove the image panning, if applied
// TODO: rethink if this is necessary
self.removePan();
// set the captions and counter
self.setInfo( queue.index );
self.setCounter( queue.index );
// show the layer now
if ( data.layer ) {
layer.show();
// inherit click events set on image
if ( ( data.iframe && data.image ) || data.link || self._options.lightbox || self._options.clicknext ) {
layer.css( 'cursor', 'pointer' ).off( 'mouseup' ).mouseup( mousetrigger );
}
}
// add play icon
if( data.video && data.image ) {
_playIcon( next.container );
}
var transition = self._options.transition;
// can JavaScript loop through objects in order? yes.
$.each({
initial: active.image === null,
touch: Galleria.TOUCH,
fullscreen: self.isFullscreen()
}, function( type, arg ) {
if ( arg && self._options[ type + 'Transition' ] !== undef ) {
transition = self._options[ type + 'Transition' ];
return false;
}
});
// validate the transition
if ( transition in _transitions.effects === false ) {
complete();
} else {
var params = {
prev: active.container,
next: next.container,
rewind: queue.rewind,
speed: self._options.transitionSpeed || 400
};
_transitions.active = true;
// call the transition function and send some stuff
_transitions.init.call( self, transition, params, complete );
}
// trigger the LOADFINISH event
self.trigger({
type: Galleria.LOADFINISH,
cached: cached,
index: queue.index,
rewind: queue.rewind,
imageTarget: next.image,
thumbTarget: self._thumbnails[ queue.index ].image,
galleriaData: self.getData( queue.index )
});
}
});
});
},
/**
Gets the next index
@param {number} [base] Optional starting point
@returns {number} the next index, or the first if you are at the first (looping)
*/
getNext : function( base ) {
base = typeof base === 'number' ? base : this.getIndex();
return base === this.getDataLength() - 1 ? 0 : base + 1;
},
/**
Gets the previous index
@param {number} [base] Optional starting point
@returns {number} the previous index, or the last if you are at the first (looping)
*/
getPrev : function( base ) {
base = typeof base === 'number' ? base : this.getIndex();
return base === 0 ? this.getDataLength() - 1 : base - 1;
},
/**
Shows the next image in line
@returns Instance
*/
next : function() {
if ( this.getDataLength() > 1 ) {
this.show( this.getNext(), false );
}
return this;
},
/**
Shows the previous image in line
@returns Instance
*/
prev : function() {
if ( this.getDataLength() > 1 ) {
this.show( this.getPrev(), true );
}
return this;
},
/**
Retrieve a DOM element by element ID
@param {string} elemId The delement ID to fetch
@returns {HTMLElement} The elements DOM node or null if not found.
*/
get : function( elemId ) {
return elemId in this._dom ? this._dom[ elemId ] : null;
},
/**
Retrieve a data object
@param {number} index The data index to retrieve.
If no index specified it will take the currently active image
@returns {Object} The data object
*/
getData : function( index ) {
return index in this._data ?
this._data[ index ] : this._data[ this._active ];
},
/**
Retrieve the number of data items
@returns {number} The data length
*/
getDataLength : function() {
return this._data.length;
},
/**
Retrieve the currently active index
@returns {number|boolean} The active index or false if none found
*/
getIndex : function() {
return typeof this._active === 'number' ? this._active : false;
},
/**
Retrieve the stage height
@returns {number} The stage height
*/
getStageHeight : function() {
return this._stageHeight;
},
/**
Retrieve the stage width
@returns {number} The stage width
*/
getStageWidth : function() {
return this._stageWidth;
},
/**
Retrieve the option
@param {string} key The option key to retrieve. If no key specified it will return all options in an object.
@returns option or options
*/
getOptions : function( key ) {
return typeof key === 'undefined' ? this._options : this._options[ key ];
},
/**
Set options to the instance.
You can set options using a key & value argument or a single object argument (see examples)
@param {string} key The option key
@param {string} value the the options value
@example setOptions( 'autoplay', true )
@example setOptions({ autoplay: true });
@returns Instance
*/
setOptions : function( key, value ) {
if ( typeof key === 'object' ) {
$.extend( this._options, key );
} else {
this._options[ key ] = value;
}
return this;
},
/**
Starts playing the slideshow
@param {number} delay Sets the slideshow interval in milliseconds.
If you set it once, you can just call play() and get the same interval the next time.
@returns Instance
*/
play : function( delay ) {
this._playing = true;
this._playtime = delay || this._playtime;
this._playCheck();
this.trigger( Galleria.PLAY );
return this;
},
/**
Stops the slideshow if currently playing
@returns Instance
*/
pause : function() {
this._playing = false;
this.trigger( Galleria.PAUSE );
return this;
},
/**
Toggle between play and pause events.
@param {number} delay Sets the slideshow interval in milliseconds.
@returns Instance
*/
playToggle : function( delay ) {
return ( this._playing ) ? this.pause() : this.play( delay );
},
/**
Checks if the gallery is currently playing
@returns {Boolean}
*/
isPlaying : function() {
return this._playing;
},
/**
Checks if the gallery is currently in fullscreen mode
@returns {Boolean}
*/
isFullscreen : function() {
return this._fullscreen.active;
},
_playCheck : function() {
var self = this,
played = 0,
interval = 20,
now = Utils.timestamp(),
timer_id = 'play' + this._id;
if ( this._playing ) {
this.clearTimer( timer_id );
var fn = function() {
played = Utils.timestamp() - now;
if ( played >= self._playtime && self._playing ) {
self.clearTimer( timer_id );
self.next();
return;
}
if ( self._playing ) {
// trigger the PROGRESS event
self.trigger({
type: Galleria.PROGRESS,
percent: M.ceil( played / self._playtime * 100 ),
seconds: M.floor( played / 1000 ),
milliseconds: played
});
self.addTimer( timer_id, fn, interval );
}
};
self.addTimer( timer_id, fn, interval );
}
},
/**
Modify the slideshow delay
@param {number} delay the number of milliseconds between slides,
@returns Instance
*/
setPlaytime: function( delay ) {
this._playtime = delay;
return this;
},
setIndex: function( val ) {
this._active = val;
return this;
},
/**
Manually modify the counter
@param {number} [index] Optional data index to fectch,
if no index found it assumes the currently active index
@returns Instance
*/
setCounter: function( index ) {
if ( typeof index === 'number' ) {
index++;
} else if ( typeof index === 'undefined' ) {
index = this.getIndex()+1;
}
this.get( 'current' ).innerHTML = index;
if ( IE ) { // weird IE bug
var count = this.$( 'counter' ),
opacity = count.css( 'opacity' );
if ( parseInt( opacity, 10 ) === 1) {
Utils.removeAlpha( count[0] );
} else {
this.$( 'counter' ).css( 'opacity', opacity );
}
}
return this;
},
/**
Manually set captions
@param {number} [index] Optional data index to fectch and apply as caption,
if no index found it assumes the currently active index
@returns Instance
*/
setInfo : function( index ) {
var self = this,
data = this.getData( index );
$.each( ['title','description'], function( i, type ) {
var elem = self.$( 'info-' + type );
if ( !!data[type] ) {
elem[ data[ type ].length ? 'show' : 'hide' ]().html( data[ type ] );
} else {
elem.empty().hide();
}
});
return this;
},
/**
Checks if the data contains any captions
@param {number} [index] Optional data index to fectch,
if no index found it assumes the currently active index.
@returns {boolean}
*/
hasInfo : function( index ) {
var check = 'title description'.split(' '),
i;
for ( i = 0; check[i]; i++ ) {
if ( !!this.getData( index )[ check[i] ] ) {
return true;
}
}
return false;
},
jQuery : function( str ) {
var self = this,
ret = [];
$.each( str.split(','), function( i, elemId ) {
elemId = $.trim( elemId );
if ( self.get( elemId ) ) {
ret.push( elemId );
}
});
var jQ = $( self.get( ret.shift() ) );
$.each( ret, function( i, elemId ) {
jQ = jQ.add( self.get( elemId ) );
});
return jQ;
},
/**
Converts element IDs into a jQuery collection
You can call for multiple IDs separated with commas.
@param {string} str One or more element IDs (comma-separated)
@returns jQuery
@example this.$('info,container').hide();
*/
$ : function( str ) {
return this.jQuery.apply( this, Utils.array( arguments ) );
}
};
// End of Galleria prototype
// Add events as static variables
$.each( _events, function( i, ev ) {
// legacy events
var type = /_/.test( ev ) ? ev.replace( /_/g, '' ) : ev;
Galleria[ ev.toUpperCase() ] = 'galleria.'+type;
} );
$.extend( Galleria, {
// Browser helpers
IE9: IE === 9,
IE8: IE === 8,
IE7: IE === 7,
IE6: IE === 6,
IE: IE,
WEBKIT: /webkit/.test( NAV ),
CHROME: /chrome/.test( NAV ),
SAFARI: /safari/.test( NAV ) && !(/chrome/.test( NAV )),
QUIRK: ( IE && doc.compatMode && doc.compatMode === "BackCompat" ),
MAC: /mac/.test( navigator.platform.toLowerCase() ),
OPERA: !!window.opera,
IPHONE: /iphone/.test( NAV ),
IPAD: /ipad/.test( NAV ),
ANDROID: /android/.test( NAV ),
TOUCH: ('ontouchstart' in doc)
});
// Galleria static methods
/**
Adds a theme that you can use for your Gallery
@param {Object} theme Object that should contain all your theme settings.
<ul>
<li>name - name of the theme</li>
<li>author - name of the author</li>
<li>css - css file name (not path)</li>
<li>defaults - default options to apply, including theme-specific options</li>
<li>init - the init function</li>
</ul>
@returns {Object} theme
*/
Galleria.addTheme = function( theme ) {
// make sure we have a name
if ( !theme.name ) {
Galleria.raise('No theme name specified');
}
if ( typeof theme.defaults !== 'object' ) {
theme.defaults = {};
} else {
theme.defaults = _legacyOptions( theme.defaults );
}
var css = false,
reg;
if ( typeof theme.css === 'string' ) {
// look for manually added CSS
$('link').each(function( i, link ) {
reg = new RegExp( theme.css );
if ( reg.test( link.href ) ) {
// we found the css
css = true;
// the themeload trigger
_themeLoad( theme );
return false;
}
});
// else look for the absolute path and load the CSS dynamic
if ( !css ) {
$(function() {
// Try to determine the css-path from the theme script.
// In IE8/9, the script-dom-element seems to be not present
// at once, if galleria itself is inserted into the dom
// dynamically. We therefore try multiple times before raising
// an error.
var retryCount = 0;
var tryLoadCss = function() {
$('script').each(function (i, script) {
// look for the theme script
reg = new RegExp('galleria\\.' + theme.name.toLowerCase() + '\\.');
if (reg.test(script.src)) {
// we have a match
css = script.src.replace(/[^\/]*$/, '') + theme.css;
window.setTimeout(function () {
Utils.loadCSS(css, 'galleria-theme-'+theme.name, function () {
// run galleries with this theme
_themeLoad(theme);
});
}, 1);
}
});
if (!css) {
if (retryCount++ > 5) {
Galleria.raise('No theme CSS loaded');
} else {
window.setTimeout(tryLoadCss, 500);
}
}
};
tryLoadCss();
});
}
} else {
// pass
_themeLoad( theme );
}
return theme;
};
/**
loadTheme loads a theme js file and attaches a load event to Galleria
@param {string} src The relative path to the theme source file
@param {Object} [options] Optional options you want to apply
@returns Galleria
*/
Galleria.loadTheme = function( src, options ) {
// Don't load if theme is already loaded
if( $('script').filter(function() { return $(this).attr('src') == src; }).length ) {
return;
}
var loaded = false,
err;
// start listening for the timeout onload
$( window ).load( function() {
if ( !loaded ) {
// give it another 20 seconds
err = window.setTimeout(function() {
if ( !loaded ) {
Galleria.raise( "Galleria had problems loading theme at " + src + ". Please check theme path or load manually.", true );
}
}, 20000);
}
});
// load the theme
Utils.loadScript( src, function() {
loaded = true;
window.clearTimeout( err );
});
return Galleria;
};
/**
Retrieves a Galleria instance.
@param {number} [index] Optional index to retrieve.
If no index is supplied, the method will return all instances in an array.
@returns Instance or Array of instances
*/
Galleria.get = function( index ) {
if ( !!_instances[ index ] ) {
return _instances[ index ];
} else if ( typeof index !== 'number' ) {
return _instances;
} else {
Galleria.raise('Gallery index ' + index + ' not found');
}
};
/**
Configure Galleria options via a static function.
The options will be applied to all instances
@param {string|object} key The options to apply or a key
@param [value] If key is a string, this is the value
@returns Galleria
*/
Galleria.configure = function( key, value ) {
var opts = {};
if( typeof key == 'string' && value ) {
opts[key] = value;
key = opts;
} else {
$.extend( opts, key );
}
Galleria.configure.options = opts;
$.each( Galleria.get(), function(i, instance) {
instance.setOptions( opts );
});
return Galleria;
};
Galleria.configure.options = {};
/**
Bind a Galleria event to the gallery
@param {string} type A string representing the galleria event
@param {function} callback The function that should run when the event is triggered
@returns Galleria
*/
Galleria.on = function( type, callback ) {
if ( !type ) {
return;
}
callback = callback || F;
// hash the bind
var hash = type + callback.toString().replace(/\s/g,'') + Utils.timestamp();
// for existing instances
$.each( Galleria.get(), function(i, instance) {
instance._binds.push( hash );
instance.bind( type, callback );
});
// for future instances
Galleria.on.binds.push({
type: type,
callback: callback,
hash: hash
});
return Galleria;
};
Galleria.on.binds = [];
/**
Run Galleria
Alias for $(selector).galleria(options)
@param {string} selector A selector of element(s) to intialize galleria to
@param {object} options The options to apply
@returns Galleria
*/
Galleria.run = function( selector, options ) {
if ( $.isFunction( options ) ) {
options = { extend: options };
}
$( selector || '#galleria' ).galleria( options );
return Galleria;
};
/**
Creates a transition to be used in your gallery
@param {string} name The name of the transition that you will use as an option
@param {Function} fn The function to be executed in the transition.
The function contains two arguments, params and complete.
Use the params Object to integrate the transition, and then call complete when you are done.
@returns Galleria
*/
Galleria.addTransition = function( name, fn ) {
_transitions.effects[name] = fn;
return Galleria;
};
/**
The Galleria utilites
*/
Galleria.utils = Utils;
/**
A helper metod for cross-browser logging.
It uses the console log if available otherwise it falls back to alert
@example Galleria.log("hello", document.body, [1,2,3]);
*/
Galleria.log = function() {
var args = Utils.array( arguments );
if( 'console' in window && 'log' in window.console ) {
try {
return window.console.log.apply( window.console, args );
} catch( e ) {
$.each( args, function() {
window.console.log(this);
});
}
} else {
return window.alert( args.join('<br>') );
}
};
/**
A ready method for adding callbacks when a gallery is ready
Each method is call before the extend option for every instance
@param {function} callback The function to call
@returns Galleria
*/
Galleria.ready = function( fn ) {
if ( typeof fn != 'function' ) {
return Galleria;
}
$.each( _galleries, function( i, gallery ) {
fn.call( gallery, gallery._options );
});
Galleria.ready.callbacks.push( fn );
return Galleria;
};
Galleria.ready.callbacks = [];
/**
Method for raising errors
@param {string} msg The message to throw
@param {boolean} [fatal] Set this to true to override debug settings and display a fatal error
*/
Galleria.raise = function( msg, fatal ) {
var type = fatal ? 'Fatal error' : 'Error',
css = {
color: '#fff',
position: 'absolute',
top: 0,
left: 0,
zIndex: 100000
},
echo = function( msg ) {
var html = '<div style="padding:4px;margin:0 0 2px;background:#' +
( fatal ? '811' : '222' ) + ';">' +
( fatal ? '<strong>' + type + ': </strong>' : '' ) +
msg + '</div>';
$.each( _instances, function() {
var cont = this.$( 'errors' ),
target = this.$( 'target' );
if ( !cont.length ) {
target.css( 'position', 'relative' );
cont = this.addElement( 'errors' ).appendChild( 'target', 'errors' ).$( 'errors' ).css(css);
}
cont.append( html );
});
if ( !_instances.length ) {
$('<div>').css( $.extend( css, { position: 'fixed' } ) ).append( html ).appendTo( DOM().body );
}
};
// if debug is on, display errors and throw exception if fatal
if ( DEBUG ) {
echo( msg );
if ( fatal ) {
throw new Error(type + ': ' + msg);
}
// else just echo a silent generic error if fatal
} else if ( fatal ) {
if ( _hasError ) {
return;
}
_hasError = true;
fatal = false;
echo( 'Gallery could not load.' );
}
};
// Add the version
Galleria.version = VERSION;
Galleria.getLoadedThemes = function() {
return $.map(_loadedThemes, function(theme) {
return theme.name;
});
};
/**
A method for checking what version of Galleria the user has installed and throws a readable error if the user needs to upgrade.
Useful when building plugins that requires a certain version to function.
@param {number} version The minimum version required
@param {string} [msg] Optional message to display. If not specified, Galleria will throw a generic error.
@returns Galleria
*/
Galleria.requires = function( version, msg ) {
msg = msg || 'You need to upgrade Galleria to version ' + version + ' to use one or more components.';
if ( Galleria.version < version ) {
Galleria.raise(msg, true);
}
return Galleria;
};
/**
Adds preload, cache, scale and crop functionality
@constructor
@requires jQuery
@param {number} [id] Optional id to keep track of instances
*/
Galleria.Picture = function( id ) {
// save the id
this.id = id || null;
// the image should be null until loaded
this.image = null;
// Create a new container
this.container = Utils.create('galleria-image');
// add container styles
$( this.container ).css({
overflow: 'hidden',
position: 'relative' // for IE Standards mode
});
// saves the original measurements
this.original = {
width: 0,
height: 0
};
// flag when the image is ready
this.ready = false;
// flag for iframe Picture
this.isIframe = false;
};
Galleria.Picture.prototype = {
// the inherited cache object
cache: {},
// show the image on stage
show: function() {
Utils.show( this.image );
},
// hide the image
hide: function() {
Utils.moveOut( this.image );
},
clear: function() {
this.image = null;
},
/**
Checks if an image is in cache
@param {string} src The image source path, ex '/path/to/img.jpg'
@returns {boolean}
*/
isCached: function( src ) {
return !!this.cache[src];
},
/**
Preloads an image into the cache
@param {string} src The image source path, ex '/path/to/img.jpg'
@returns Galleria.Picture
*/
preload: function( src ) {
$( new Image() ).load((function(src, cache) {
return function() {
cache[ src ] = src;
};
}( src, this.cache ))).attr( 'src', src );
},
/**
Loads an image and call the callback when ready.
Will also add the image to cache.
@param {string} src The image source path, ex '/path/to/img.jpg'
@param {Object} [size] The forced size of the image, defined as an object { width: xx, height:xx }
@param {Function} callback The function to be executed when the image is loaded & scaled
@returns The image container (jQuery object)
*/
load: function(src, size, callback) {
if ( typeof size == 'function' ) {
callback = size;
size = null;
}
if( this.isIframe ) {
var id = 'if'+new Date().getTime();
var iframe = this.image = $('<iframe>', {
src: src,
frameborder: 0,
id: id,
allowfullscreen: true,
css: { visibility: 'hidden' }
})[0];
if ( size ) {
$( iframe ).css( size );
}
$( this.container ).find( 'iframe,img' ).remove();
this.container.appendChild( this.image );
$('#'+id).load( (function( self, callback ) {
return function() {
window.setTimeout(function() {
$( self.image ).css( 'visibility', 'visible' );
if( typeof callback == 'function' ) {
callback.call( self, self );
}
}, 10);
};
}( this, callback )));
return this.container;
}
this.image = new Image();
// IE8 opacity inherit bug
if ( Galleria.IE8 ) {
$( this.image ).css( 'filter', 'inherit' );
}
// FF shaking images bug:
// http://support.galleria.io/discussions/problems/12245-shaking-photos
if ( !Galleria.IE && !Galleria.CHROME && !Galleria.SAFARI ) {
$( this.image ).css( 'image-rendering', 'optimizequality' );
}
var reload = false,
resort = false,
// some jquery cache
$container = $( this.container ),
$image = $( this.image ),
onerror = function() {
if ( !reload ) {
reload = true;
// reload the image with a timestamp
window.setTimeout((function(image, src) {
return function() {
image.attr('src', src + (src.indexOf('?') > -1 ? '&' : '?') + Utils.timestamp() );
};
}( $(this), src )), 50);
} else {
// apply the dummy image if it exists
if ( DUMMY ) {
$( this ).attr( 'src', DUMMY );
} else {
Galleria.raise('Image not found: ' + src);
}
}
},
// the onload method
onload = (function( self, callback, src ) {
return function() {
var complete = function() {
$( this ).off( 'load' );
// save the original size
self.original = size || {
height: this.height,
width: this.width
};
// translate3d if needed
if ( Galleria.HAS3D ) {
this.style.MozTransform = this.style.webkitTransform = 'translate3d(0,0,0)';
}
$container.append( this );
self.cache[ src ] = src; // will override old cache
if (typeof callback == 'function' ) {
window.setTimeout(function() {
callback.call( self, self );
},1);
}
};
// Delay the callback to "fix" the Adblock Bug
// http://code.google.com/p/adblockforchrome/issues/detail?id=3701
if ( ( !this.width || !this.height ) ) {
(function( img ) {
Utils.wait({
until: function() {
return img.width && img.height;
},
success: function() {
complete.call( img );
},
error: function() {
if ( !resort ) {
$(new Image()).load( onload ).attr( 'src', img.src );
resort = true;
} else {
Galleria.raise('Could not extract width/height from image: ' + img.src +
'. Traced measures: width:' + img.width + 'px, height: ' + img.height + 'px.');
}
},
timeout: 100
});
}( this ));
} else {
complete.call( this );
}
};
}( this, callback, src ));
// remove any previous images
$container.find( 'iframe,img' ).remove();
// append the image
$image.css( 'display', 'block');
// hide it for now
Utils.hide( this.image );
// remove any max/min scaling
$.each('minWidth minHeight maxWidth maxHeight'.split(' '), function(i, prop) {
$image.css(prop, (/min/.test(prop) ? '0' : 'none'));
});
// begin load and insert in cache when done
$image.load( onload ).on( 'error', onerror ).attr( 'src', src );
// return the container
return this.container;
},
/**
Scales and crops the image
@param {Object} options The method takes an object with a number of options:
<ul>
<li>width - width of the container</li>
<li>height - height of the container</li>
<li>min - minimum scale ratio</li>
<li>max - maximum scale ratio</li>
<li>margin - distance in pixels from the image border to the container</li>
<li>complete - a callback that fires when scaling is complete</li>
<li>position - positions the image, works like the css background-image property.</li>
<li>crop - defines how to crop. Can be true, false, 'width' or 'height'</li>
<li>canvas - set to true to try a canvas-based rescale</li>
</ul>
@returns The image container object (jQuery)
*/
scale: function( options ) {
var self = this;
// extend some defaults
options = $.extend({
width: 0,
height: 0,
min: undef,
max: undef,
margin: 0,
complete: F,
position: 'center',
crop: false,
canvas: false,
iframelimit: undef
}, options);
if( this.isIframe ) {
var cw = options.width,
ch = options.height,
nw, nh;
if ( options.iframelimit ) {
var r = M.min( options.iframelimit/cw, options.iframelimit/ch );
if ( r < 1 ) {
nw = cw * r;
nh = ch * r;
$( this.image ).css({
top: ch/2-nh/2,
left: cw/2-nw/2,
position: 'absolute'
});
} else {
$( this.image ).css({
top: 0,
left: 0
});
}
}
$( this.image ).width( nw || cw ).height( nh || ch ).removeAttr( 'width' ).removeAttr( 'height' );
$( this.container ).width( cw ).height( ch );
options.complete.call(self, self);
try {
if( this.image.contentWindow ) {
$( this.image.contentWindow ).trigger('resize');
}
} catch(e) {}
return this.container;
}
// return the element if no image found
if (!this.image) {
return this.container;
}
// store locale variables
var width,
height,
$container = $( self.container ),
data;
// wait for the width/height
Utils.wait({
until: function() {
width = options.width ||
$container.width() ||
Utils.parseValue( $container.css('width') );
height = options.height ||
$container.height() ||
Utils.parseValue( $container.css('height') );
return width && height;
},
success: function() {
// calculate some cropping
var newWidth = ( width - options.margin * 2 ) / self.original.width,
newHeight = ( height - options.margin * 2 ) / self.original.height,
min = M.min( newWidth, newHeight ),
max = M.max( newWidth, newHeight ),
cropMap = {
'true' : max,
'width' : newWidth,
'height': newHeight,
'false' : min,
'landscape': self.original.width > self.original.height ? max : min,
'portrait': self.original.width < self.original.height ? max : min
},
ratio = cropMap[ options.crop.toString() ],
canvasKey = '';
// allow maxScaleRatio
if ( options.max ) {
ratio = M.min( options.max, ratio );
}
// allow minScaleRatio
if ( options.min ) {
ratio = M.max( options.min, ratio );
}
$.each( ['width','height'], function( i, m ) {
$( self.image )[ m ]( self[ m ] = self.image[ m ] = M.round( self.original[ m ] * ratio ) );
});
$( self.container ).width( width ).height( height );
if ( options.canvas && _canvas ) {
_canvas.elem.width = self.width;
_canvas.elem.height = self.height;
canvasKey = self.image.src + ':' + self.width + 'x' + self.height;
self.image.src = _canvas.cache[ canvasKey ] || (function( key ) {
_canvas.context.drawImage(self.image, 0, 0, self.original.width*ratio, self.original.height*ratio);
try {
data = _canvas.elem.toDataURL();
_canvas.length += data.length;
_canvas.cache[ key ] = data;
return data;
} catch( e ) {
return self.image.src;
}
}( canvasKey ) );
}
// calculate image_position
var pos = {},
mix = {},
getPosition = function(value, measure, margin) {
var result = 0;
if (/\%/.test(value)) {
var flt = parseInt( value, 10 ) / 100,
m = self.image[ measure ] || $( self.image )[ measure ]();
result = M.ceil( m * -1 * flt + margin * flt );
} else {
result = Utils.parseValue( value );
}
return result;
},
positionMap = {
'top': { top: 0 },
'left': { left: 0 },
'right': { left: '100%' },
'bottom': { top: '100%' }
};
$.each( options.position.toLowerCase().split(' '), function( i, value ) {
if ( value === 'center' ) {
value = '50%';
}
pos[i ? 'top' : 'left'] = value;
});
$.each( pos, function( i, value ) {
if ( positionMap.hasOwnProperty( value ) ) {
$.extend( mix, positionMap[ value ] );
}
});
pos = pos.top ? $.extend( pos, mix ) : mix;
pos = $.extend({
top: '50%',
left: '50%'
}, pos);
// apply position
$( self.image ).css({
position : 'absolute',
top : getPosition(pos.top, 'height', height),
left : getPosition(pos.left, 'width', width)
});
// show the image
self.show();
// flag ready and call the callback
self.ready = true;
options.complete.call( self, self );
},
error: function() {
Galleria.raise('Could not scale image: '+self.image.src);
},
timeout: 1000
});
return this;
}
};
// our own easings
$.extend( $.easing, {
galleria: function (_, t, b, c, d) {
if ((t/=d/2) < 1) {
return c/2*t*t*t + b;
}
return c/2*((t-=2)*t*t + 2) + b;
},
galleriaIn: function (_, t, b, c, d) {
return c*(t/=d)*t + b;
},
galleriaOut: function (_, t, b, c, d) {
return -c *(t/=d)*(t-2) + b;
}
});
// Forked version of Ainos Finger.js for native-style touch
Galleria.Finger = (function() {
var abs = M.abs;
// test for translate3d support
var has3d = Galleria.HAS3D = (function() {
var el = doc.createElement('p'),
has3d,
t = ['webkit','O','ms','Moz',''],
s,
i=0,
a = 'transform';
DOM().html.insertBefore(el, null);
for (; t[i]; i++) {
s = t[i] ? t[i]+'Transform' : a;
if (el.style[s] !== undefined) {
el.style[s] = "translate3d(1px,1px,1px)";
has3d = $(el).css(t[i] ? '-'+t[i].toLowerCase()+'-'+a : a);
}
}
DOM().html.removeChild(el);
return (has3d !== undefined && has3d.length > 0 && has3d !== "none");
}());
// request animation shim
var requestFrame = (function(){
var r = 'RequestAnimationFrame';
return window.requestAnimationFrame ||
window['webkit'+r] ||
window['moz'+r] ||
window['o'+r] ||
window['ms'+r] ||
function( callback ) {
window.setTimeout(callback, 1000 / 60);
};
}());
var Finger = function(elem, options) {
// default options
this.config = {
start: 0,
duration: 500,
onchange: function() {},
oncomplete: function() {},
easing: function(x,t,b,c,d) {
return -c * ((t=t/d-1)*t*t*t - 1) + b; // easeOutQuart
}
};
this.easeout = function (x, t, b, c, d) {
return c*((t=t/d-1)*t*t*t*t + 1) + b;
};
if ( !elem.children.length ) {
return;
}
var self = this;
// extend options
$.extend(this.config, options);
this.elem = elem;
this.child = elem.children[0];
this.to = this.pos = 0;
this.touching = false;
this.start = {};
this.index = this.config.start;
this.anim = 0;
this.easing = this.config.easing;
if ( !has3d ) {
this.child.style.position = 'absolute';
this.elem.style.position = 'relative';
}
// Bind event handlers to context
$.each(['ontouchstart','ontouchmove','ontouchend','setup'], function(i, fn) {
self[fn] = (function(caller) {
return function() {
caller.apply( self, arguments );
};
}(self[fn]));
});
// the physical animator
this.setX = function() {
var style = self.child.style;
if (!has3d) {
// this is actually faster than CSS3 translate
style.left = self.pos+'px';
return;
}
style.MozTransform = style.webkitTransform = style.transform = 'translate3d(' + self.pos + 'px,0,0)';
return;
};
// bind events
$(elem).on('touchstart', this.ontouchstart);
$(window).on('resize', this.setup);
$(window).on('orientationchange', this.setup);
// set up width
this.setup();
// start the animations
(function animloop(){
requestFrame(animloop);
self.loop.call( self );
}());
};
Finger.prototype = {
constructor: Finger,
setup: function() {
this.width = $( this.elem ).width();
this.length = M.ceil( $(this.child).width() / this.width );
if ( this.index !== 0 ) {
this.index = M.max(0, M.min( this.index, this.length-1 ) );
this.pos = this.to = -this.width*this.index;
}
},
setPosition: function(pos) {
this.pos = pos;
this.to = pos;
},
ontouchstart: function(e) {
var touch = e.originalEvent.touches;
this.start = {
pageX: touch[0].pageX,
pageY: touch[0].pageY,
time: +new Date()
};
this.isScrolling = null;
this.touching = true;
this.deltaX = 0;
$doc.on('touchmove', this.ontouchmove);
$doc.on('touchend', this.ontouchend);
},
ontouchmove: function(e) {
var touch = e.originalEvent.touches;
// ensure swiping with one touch and not pinching
if( touch && touch.length > 1 || e.scale && e.scale !== 1 ) {
return;
}
this.deltaX = touch[0].pageX - this.start.pageX;
// determine if scrolling test has run - one time test
if ( this.isScrolling === null ) {
this.isScrolling = !!(
this.isScrolling ||
M.abs(this.deltaX) < M.abs(touch[0].pageY - this.start.pageY)
);
}
// if user is not trying to scroll vertically
if (!this.isScrolling) {
// prevent native scrolling
e.preventDefault();
// increase resistance if first or last slide
this.deltaX /= ( (!this.index && this.deltaX > 0 || this.index == this.length - 1 && this.deltaX < 0 ) ?
( M.abs(this.deltaX) / this.width + 1.8 ) : 1 );
this.to = this.deltaX - this.index * this.width;
}
e.stopPropagation();
},
ontouchend: function(e) {
this.touching = false;
// determine if slide attempt triggers next/prev slide
var isValidSlide = +new Date() - this.start.time < 250 &&
M.abs(this.deltaX) > 40 ||
M.abs(this.deltaX) > this.width/2,
isPastBounds = !this.index && this.deltaX > 0 ||
this.index == this.length - 1 && this.deltaX < 0;
// if not scrolling vertically
if ( !this.isScrolling ) {
this.show( this.index + ( isValidSlide && !isPastBounds ? (this.deltaX < 0 ? 1 : -1) : 0 ) );
}
$doc.off('touchmove', this.ontouchmove);
$doc.off('touchend', this.ontouchend);
},
show: function( index ) {
if ( index != this.index ) {
this.config.onchange.call(this, index);
} else {
this.to = -( index*this.width );
}
},
moveTo: function( index ) {
if ( index != this.index ) {
this.pos = this.to = -( index*this.width );
this.index = index;
}
},
loop: function() {
var distance = this.to - this.pos,
factor = 1;
if ( this.width && distance ) {
factor = M.max(0.5, M.min(1.5, M.abs(distance / this.width) ) );
}
// if distance is short or the user is touching, do a 1-1 animation
if ( this.touching || M.abs(distance) <= 1 ) {
this.pos = this.to;
distance = 0;
if ( this.anim && !this.touching ) {
this.config.oncomplete( this.index );
}
this.anim = 0;
this.easing = this.config.easing;
} else {
if ( !this.anim ) {
// save animation parameters
this.anim = { start: this.pos, time: +new Date(), distance: distance, factor: factor, destination: this.to };
}
// check if to has changed or time has run out
var elapsed = +new Date() - this.anim.time;
var duration = this.config.duration*this.anim.factor;
if ( elapsed > duration || this.anim.destination != this.to ) {
this.anim = 0;
this.easing = this.easeout;
return;
}
// apply easing
this.pos = this.easing(
null,
elapsed,
this.anim.start,
this.anim.distance,
duration
);
}
this.setX();
}
};
return Finger;
}());
// the plugin initializer
$.fn.galleria = function( options ) {
var selector = this.selector;
// try domReady if element not found
if ( !$(this).length ) {
$(function() {
if ( $( selector ).length ) {
// if found on domReady, go ahead
$( selector ).galleria( options );
} else {
// if not, try fetching the element for 5 secs, then raise a warning.
Galleria.utils.wait({
until: function() {
return $( selector ).length;
},
success: function() {
$( selector ).galleria( options );
},
error: function() {
Galleria.raise('Init failed: Galleria could not find the element "'+selector+'".');
},
timeout: 5000
});
}
});
return this;
}
return this.each(function() {
// destroy previous instance and prepare for new load
if ( $.data(this, 'galleria') ) {
$.data( this, 'galleria' ).destroy();
$( this ).find( '*' ).hide();
}
// load the new gallery
$.data( this, 'galleria', new Galleria().init( this, options ) );
});
};
// export as AMD or CommonJS
if ( typeof module === "object" && module && typeof module.exports === "object" ) {
module.exports = Galleria;
} else {
window.Galleria = Galleria;
if ( typeof define === "function" && define.amd ) {
define( "galleria", ['jquery'], function() { return Galleria; } );
}
}
// phew
}( jQuery, this ) );