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jquery-mobile.js
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/*!
* jQuery Mobile v1.0a2
* http://jquerymobile.com/
*
* Copyright 2010, jQuery Project
* Dual licensed under the MIT or GPL Version 2 licenses.
* http://jquery.org/license
*/
/*!
* jQuery UI Widget @VERSION
*
* Copyright 2010, AUTHORS.txt (http://jqueryui.com/about)
* Dual licensed under the MIT or GPL Version 2 licenses.
* http://jquery.org/license
*
* http://docs.jquery.com/UI/Widget
*/
(function( $, undefined ) {
// jQuery 1.4+
if ( $.cleanData ) {
var _cleanData = $.cleanData;
$.cleanData = function( elems ) {
for ( var i = 0, elem; (elem = elems[i]) != null; i++ ) {
$( elem ).triggerHandler( "remove" );
}
_cleanData( elems );
};
} else {
var _remove = $.fn.remove;
$.fn.remove = function( selector, keepData ) {
return this.each(function() {
if ( !keepData ) {
if ( !selector || $.filter( selector, [ this ] ).length ) {
$( "*", this ).add( [ this ] ).each(function() {
$( this ).triggerHandler( "remove" );
});
}
}
return _remove.call( $(this), selector, keepData );
});
};
}
$.widget = function( name, base, prototype ) {
var namespace = name.split( "." )[ 0 ],
fullName;
name = name.split( "." )[ 1 ];
fullName = namespace + "-" + name;
if ( !prototype ) {
prototype = base;
base = $.Widget;
}
// create selector for plugin
$.expr[ ":" ][ fullName ] = function( elem ) {
return !!$.data( elem, name );
};
$[ namespace ] = $[ namespace ] || {};
$[ namespace ][ name ] = function( options, element ) {
// allow instantiation without initializing for simple inheritance
if ( arguments.length ) {
this._createWidget( options, element );
}
};
var basePrototype = new base();
// we need to make the options hash a property directly on the new instance
// otherwise we'll modify the options hash on the prototype that we're
// inheriting from
// $.each( basePrototype, function( key, val ) {
// if ( $.isPlainObject(val) ) {
// basePrototype[ key ] = $.extend( {}, val );
// }
// });
basePrototype.options = $.extend( true, {}, basePrototype.options );
$[ namespace ][ name ].prototype = $.extend( true, basePrototype, {
namespace: namespace,
widgetName: name,
widgetEventPrefix: $[ namespace ][ name ].prototype.widgetEventPrefix || name,
widgetBaseClass: fullName
}, prototype );
$.widget.bridge( name, $[ namespace ][ name ] );
};
$.widget.bridge = function( name, object ) {
$.fn[ name ] = function( options ) {
var isMethodCall = typeof options === "string",
args = Array.prototype.slice.call( arguments, 1 ),
returnValue = this;
// allow multiple hashes to be passed on init
options = !isMethodCall && args.length ?
$.extend.apply( null, [ true, options ].concat(args) ) :
options;
// prevent calls to internal methods
if ( isMethodCall && options.charAt( 0 ) === "_" ) {
return returnValue;
}
if ( isMethodCall ) {
this.each(function() {
var instance = $.data( this, name );
if ( !instance ) {
throw "cannot call methods on " + name + " prior to initialization; " +
"attempted to call method '" + options + "'";
}
if ( !$.isFunction( instance[options] ) ) {
throw "no such method '" + options + "' for " + name + " widget instance";
}
var methodValue = instance[ options ].apply( instance, args );
if ( methodValue !== instance && methodValue !== undefined ) {
returnValue = methodValue;
return false;
}
});
} else {
this.each(function() {
var instance = $.data( this, name );
if ( instance ) {
instance.option( options || {} )._init();
} else {
$.data( this, name, new object( options, this ) );
}
});
}
return returnValue;
};
};
$.Widget = function( options, element ) {
// allow instantiation without initializing for simple inheritance
if ( arguments.length ) {
this._createWidget( options, element );
}
};
$.Widget.prototype = {
widgetName: "widget",
widgetEventPrefix: "",
options: {
disabled: false
},
_createWidget: function( options, element ) {
// $.widget.bridge stores the plugin instance, but we do it anyway
// so that it's stored even before the _create function runs
$.data( element, this.widgetName, this );
this.element = $( element );
this.options = $.extend( true, {},
this.options,
this._getCreateOptions(),
options );
var self = this;
this.element.bind( "remove." + this.widgetName, function() {
self.destroy();
});
this._create();
this._trigger( "create" );
this._init();
},
_getCreateOptions: function() {
var options = {};
if ( $.metadata ) {
options = $.metadata.get( element )[ this.widgetName ];
}
return options;
},
_create: function() {},
_init: function() {},
destroy: function() {
this.element
.unbind( "." + this.widgetName )
.removeData( this.widgetName );
this.widget()
.unbind( "." + this.widgetName )
.removeAttr( "aria-disabled" )
.removeClass(
this.widgetBaseClass + "-disabled " +
"ui-state-disabled" );
},
widget: function() {
return this.element;
},
option: function( key, value ) {
var options = key;
if ( arguments.length === 0 ) {
// don't return a reference to the internal hash
return $.extend( {}, this.options );
}
if (typeof key === "string" ) {
if ( value === undefined ) {
return this.options[ key ];
}
options = {};
options[ key ] = value;
}
this._setOptions( options );
return this;
},
_setOptions: function( options ) {
var self = this;
$.each( options, function( key, value ) {
self._setOption( key, value );
});
return this;
},
_setOption: function( key, value ) {
this.options[ key ] = value;
if ( key === "disabled" ) {
this.widget()
[ value ? "addClass" : "removeClass"](
this.widgetBaseClass + "-disabled" + " " +
"ui-state-disabled" )
.attr( "aria-disabled", value );
}
return this;
},
enable: function() {
return this._setOption( "disabled", false );
},
disable: function() {
return this._setOption( "disabled", true );
},
_trigger: function( type, event, data ) {
var callback = this.options[ type ];
event = $.Event( event );
event.type = ( type === this.widgetEventPrefix ?
type :
this.widgetEventPrefix + type ).toLowerCase();
data = data || {};
// copy original event properties over to the new event
// this would happen if we could call $.event.fix instead of $.Event
// but we don't have a way to force an event to be fixed multiple times
if ( event.originalEvent ) {
for ( var i = $.event.props.length, prop; i; ) {
prop = $.event.props[ --i ];
event[ prop ] = event.originalEvent[ prop ];
}
}
this.element.trigger( event, data );
return !( $.isFunction(callback) &&
callback.call( this.element[0], event, data ) === false ||
event.isDefaultPrevented() );
}
};
})( jQuery );
/*
* jQuery Mobile Framework : widget factory extentions for mobile
* Copyright (c) jQuery Project
* Dual licensed under the MIT (MIT-LICENSE.txt) and GPL (GPL-LICENSE.txt) licenses.
* Note: Code is in draft form and is subject to change
*/
(function($, undefined ) {
$.widget( "mobile.widget", {
_getCreateOptions: function() {
var elem = this.element,
options = {};
$.each( this.options, function( option ) {
var value = elem.data( option.replace( /[A-Z]/g, function( c ) {
return "-" + c.toLowerCase();
} ) );
if ( value !== undefined ) {
options[ option ] = value;
}
});
return options;
}
});
})( jQuery );
/*
* jQuery Mobile Framework : support tests
* Copyright (c) jQuery Project
* Dual licensed under the MIT (MIT-LICENSE.txt) and GPL (GPL-LICENSE.txt) licenses.
* Note: Code is in draft form and is subject to change
*/
(function($, undefined ) {
// test whether a CSS media type or query applies
$.media = (function() {
// TODO: use window.matchMedia once at least one UA implements it
var cache = {},
$html = $( "html" ),
testDiv = $( "<div id='jquery-mediatest'>" ),
fakeBody = $( "<body>" ).append( testDiv );
return function( query ) {
if ( !( query in cache ) ) {
var styleBlock = $( "<style type='text/css'>" +
"@media " + query + "{#jquery-mediatest{position:absolute;}}" +
"</style>" );
$html.prepend( fakeBody ).prepend( styleBlock );
cache[ query ] = testDiv.css( "position" ) === "absolute";
fakeBody.add( styleBlock ).remove();
}
return cache[ query ];
};
})();
var fakeBody = $( "<body>" ).prependTo( "html" ),
fbCSS = fakeBody[0].style,
vendors = ['webkit','moz','o'],
webos = window.palmGetResource || window.PalmServiceBridge, //only used to rule out scrollTop
bb = window.blackberry; //only used to rule out box shadow, as it's filled opaque on BB
//thx Modernizr
function propExists( prop ){
var uc_prop = prop.charAt(0).toUpperCase() + prop.substr(1),
props = (prop + ' ' + vendors.join(uc_prop + ' ') + uc_prop).split(' ');
for(var v in props){
if( fbCSS[ v ] !== undefined ){
return true;
}
}
};
//test for dynamic-updating base tag support (allows us to avoid href,src attr rewriting)
function baseTagTest(){
var fauxBase = location.protocol + '//' + location.host + location.pathname + "ui-dir/",
base = $("<base>", {"href": fauxBase}).appendTo("head"),
link = $( "<a href='testurl'></a>" ).prependTo( fakeBody ),
rebase = link[0].href;
base.remove();
return rebase.indexOf(fauxBase) === 0;
};
$.extend( $.support, {
orientation: "orientation" in window,
touch: "ontouchend" in document,
cssTransitions: "WebKitTransitionEvent" in window,
pushState: !!history.pushState,
mediaquery: $.media('only all'),
cssPseudoElement: !!propExists('content'),
boxShadow: !!propExists('boxShadow') && !bb,
scrollTop: ("pageXOffset" in window || "scrollTop" in document.documentElement || "scrollTop" in fakeBody[0]) && !webos,
dynamicBaseTag: baseTagTest()
});
fakeBody.remove();
//for ruling out shadows via css
if( !$.support.boxShadow ){ $('html').addClass('ui-mobile-nosupport-boxshadow'); }
})( jQuery );(function($, undefined ) {
// add new event shortcuts
$.each( "touchstart touchmove touchend orientationchange tap taphold swipe swipeleft swiperight scrollstart scrollstop".split( " " ), function( i, name ) {
$.fn[ name ] = function( fn ) {
return fn ? this.bind( name, fn ) : this.trigger( name );
};
$.attrFn[ name ] = true;
});
var supportTouch = $.support.touch,
scrollEvent = "touchmove scroll",
touchStartEvent = supportTouch ? "touchstart" : "mousedown",
touchStopEvent = supportTouch ? "touchend" : "mouseup",
touchMoveEvent = supportTouch ? "touchmove" : "mousemove";
// also handles scrollstop
$.event.special.scrollstart = {
enabled: true,
setup: function() {
var thisObject = this,
$this = $( thisObject ),
scrolling,
timer;
function trigger( event, state ) {
scrolling = state;
var originalType = event.type;
event.type = scrolling ? "scrollstart" : "scrollstop";
$.event.handle.call( thisObject, event );
event.type = originalType;
}
// iPhone triggers scroll after a small delay; use touchmove instead
$this.bind( scrollEvent, function( event ) {
if ( !$.event.special.scrollstart.enabled ) {
return;
}
if ( !scrolling ) {
trigger( event, true );
}
clearTimeout( timer );
timer = setTimeout(function() {
trigger( event, false );
}, 50 );
});
}
};
// also handles taphold
$.event.special.tap = {
setup: function() {
var thisObject = this,
$this = $( thisObject );
$this
.bind( touchStartEvent, function( event ) {
if ( event.which && event.which !== 1 ) {
return;
}
var moved = false,
touching = true,
origPos = [ event.pageX, event.pageY ],
originalType,
timer;
function moveHandler() {
if ((Math.abs(origPos[0] - event.pageX) > 10) ||
(Math.abs(origPos[1] - event.pageY) > 10)) {
moved = true;
}
}
timer = setTimeout(function() {
if ( touching && !moved ) {
originalType = event.type;
event.type = "taphold";
$.event.handle.call( thisObject, event );
event.type = originalType;
}
}, 750 );
$this
.one( touchMoveEvent, moveHandler)
.one( touchStopEvent, function( event ) {
$this.unbind( touchMoveEvent, moveHandler );
clearTimeout( timer );
touching = false;
if ( !moved ) {
originalType = event.type;
event.type = "tap";
$.event.handle.call( thisObject, event );
event.type = originalType;
}
});
});
}
};
// also handles swipeleft, swiperight
$.event.special.swipe = {
setup: function() {
var thisObject = this,
$this = $( thisObject );
$this
.bind( touchStartEvent, function( event ) {
var data = event.originalEvent.touches ?
event.originalEvent.touches[ 0 ] :
event,
start = {
time: (new Date).getTime(),
coords: [ data.pageX, data.pageY ],
origin: $( event.target )
},
stop;
function moveHandler( event ) {
if ( !start ) {
return;
}
var data = event.originalEvent.touches ?
event.originalEvent.touches[ 0 ] :
event;
stop = {
time: (new Date).getTime(),
coords: [ data.pageX, data.pageY ]
};
// prevent scrolling
if ( Math.abs( start.coords[0] - stop.coords[0] ) > 10 ) {
event.preventDefault();
}
}
$this
.bind( touchMoveEvent, moveHandler )
.one( touchStopEvent, function( event ) {
$this.unbind( touchMoveEvent, moveHandler );
if ( start && stop ) {
if ( stop.time - start.time < 1000 &&
Math.abs( start.coords[0] - stop.coords[0]) > 30 &&
Math.abs( start.coords[1] - stop.coords[1]) < 75 ) {
start.origin
.trigger( "swipe" )
.trigger( start.coords[0] > stop.coords[0] ? "swipeleft" : "swiperight" );
}
}
start = stop = undefined;
});
});
}
};
(function($){
// "Cowboy" Ben Alman
var win = $(window),
special_event,
get_orientation,
last_orientation;
$.event.special.orientationchange = special_event = {
setup: function(){
// If the event is supported natively, return false so that jQuery
// will bind to the event using DOM methods.
if ( $.support.orientation ) { return false; }
// Get the current orientation to avoid initial double-triggering.
last_orientation = get_orientation();
// Because the orientationchange event doesn't exist, simulate the
// event by testing window dimensions on resize.
win.bind( "resize", handler );
},
teardown: function(){
// If the event is not supported natively, return false so that
// jQuery will unbind the event using DOM methods.
if ( $.support.orientation ) { return false; }
// Because the orientationchange event doesn't exist, unbind the
// resize event handler.
win.unbind( "resize", handler );
},
add: function( handleObj ) {
// Save a reference to the bound event handler.
var old_handler = handleObj.handler;
handleObj.handler = function( event ) {
// Modify event object, adding the .orientation property.
event.orientation = get_orientation();
// Call the originally-bound event handler and return its result.
return old_handler.apply( this, arguments );
};
}
};
// If the event is not supported natively, this handler will be bound to
// the window resize event to simulate the orientationchange event.
function handler() {
// Get the current orientation.
var orientation = get_orientation();
if ( orientation !== last_orientation ) {
// The orientation has changed, so trigger the orientationchange event.
last_orientation = orientation;
win.trigger( "orientationchange" );
}
};
// Get the current page orientation. This method is exposed publicly, should it
// be needed, as jQuery.event.special.orientationchange.orientation()
special_event.orientation = get_orientation = function() {
var elem = document.documentElement;
return elem && elem.clientWidth / elem.clientHeight < 1.1 ? "portrait" : "landscape";
};
})(jQuery);
$.each({
scrollstop: "scrollstart",
taphold: "tap",
swipeleft: "swipe",
swiperight: "swipe"
}, function( event, sourceEvent ) {
$.event.special[ event ] = {
setup: function() {
$( this ).bind( sourceEvent, $.noop );
}
};
});
})( jQuery );
/*!
* jQuery hashchange event - v1.3 - 7/21/2010
* http://benalman.com/projects/jquery-hashchange-plugin/
*
* Copyright (c) 2010 "Cowboy" Ben Alman
* Dual licensed under the MIT and GPL licenses.
* http://benalman.com/about/license/
*/
// Script: jQuery hashchange event
//
// *Version: 1.3, Last updated: 7/21/2010*
//
// Project Home - http://benalman.com/projects/jquery-hashchange-plugin/
// GitHub - http://github.com/cowboy/jquery-hashchange/
// Source - http://github.com/cowboy/jquery-hashchange/raw/master/jquery.ba-hashchange.js
// (Minified) - http://github.com/cowboy/jquery-hashchange/raw/master/jquery.ba-hashchange.min.js (0.8kb gzipped)
//
// About: License
//
// Copyright (c) 2010 "Cowboy" Ben Alman,
// Dual licensed under the MIT and GPL licenses.
// http://benalman.com/about/license/
//
// About: Examples
//
// These working examples, complete with fully commented code, illustrate a few
// ways in which this plugin can be used.
//
// hashchange event - http://benalman.com/code/projects/jquery-hashchange/examples/hashchange/
// document.domain - http://benalman.com/code/projects/jquery-hashchange/examples/document_domain/
//
// About: Support and Testing
//
// Information about what version or versions of jQuery this plugin has been
// tested with, what browsers it has been tested in, and where the unit tests
// reside (so you can test it yourself).
//
// jQuery Versions - 1.2.6, 1.3.2, 1.4.1, 1.4.2
// Browsers Tested - Internet Explorer 6-8, Firefox 2-4, Chrome 5-6, Safari 3.2-5,
// Opera 9.6-10.60, iPhone 3.1, Android 1.6-2.2, BlackBerry 4.6-5.
// Unit Tests - http://benalman.com/code/projects/jquery-hashchange/unit/
//
// About: Known issues
//
// While this jQuery hashchange event implementation is quite stable and
// robust, there are a few unfortunate browser bugs surrounding expected
// hashchange event-based behaviors, independent of any JavaScript
// window.onhashchange abstraction. See the following examples for more
// information:
//
// Chrome: Back Button - http://benalman.com/code/projects/jquery-hashchange/examples/bug-chrome-back-button/
// Firefox: Remote XMLHttpRequest - http://benalman.com/code/projects/jquery-hashchange/examples/bug-firefox-remote-xhr/
// WebKit: Back Button in an Iframe - http://benalman.com/code/projects/jquery-hashchange/examples/bug-webkit-hash-iframe/
// Safari: Back Button from a different domain - http://benalman.com/code/projects/jquery-hashchange/examples/bug-safari-back-from-diff-domain/
//
// Also note that should a browser natively support the window.onhashchange
// event, but not report that it does, the fallback polling loop will be used.
//
// About: Release History
//
// 1.3 - (7/21/2010) Reorganized IE6/7 Iframe code to make it more
// "removable" for mobile-only development. Added IE6/7 document.title
// support. Attempted to make Iframe as hidden as possible by using
// techniques from http://www.paciellogroup.com/blog/?p=604. Added
// support for the "shortcut" format $(window).hashchange( fn ) and
// $(window).hashchange() like jQuery provides for built-in events.
// Renamed jQuery.hashchangeDelay to <jQuery.fn.hashchange.delay> and
// lowered its default value to 50. Added <jQuery.fn.hashchange.domain>
// and <jQuery.fn.hashchange.src> properties plus document-domain.html
// file to address access denied issues when setting document.domain in
// IE6/7.
// 1.2 - (2/11/2010) Fixed a bug where coming back to a page using this plugin
// from a page on another domain would cause an error in Safari 4. Also,
// IE6/7 Iframe is now inserted after the body (this actually works),
// which prevents the page from scrolling when the event is first bound.
// Event can also now be bound before DOM ready, but it won't be usable
// before then in IE6/7.
// 1.1 - (1/21/2010) Incorporated document.documentMode test to fix IE8 bug
// where browser version is incorrectly reported as 8.0, despite
// inclusion of the X-UA-Compatible IE=EmulateIE7 meta tag.
// 1.0 - (1/9/2010) Initial Release. Broke out the jQuery BBQ event.special
// window.onhashchange functionality into a separate plugin for users
// who want just the basic event & back button support, without all the
// extra awesomeness that BBQ provides. This plugin will be included as
// part of jQuery BBQ, but also be available separately.
(function($,window,undefined){
'$:nomunge'; // Used by YUI compressor.
// Reused string.
var str_hashchange = 'hashchange',
// Method / object references.
doc = document,
fake_onhashchange,
special = $.event.special,
// Does the browser support window.onhashchange? Note that IE8 running in
// IE7 compatibility mode reports true for 'onhashchange' in window, even
// though the event isn't supported, so also test document.documentMode.
doc_mode = doc.documentMode,
supports_onhashchange = 'on' + str_hashchange in window && ( doc_mode === undefined || doc_mode > 7 );
// Get location.hash (or what you'd expect location.hash to be) sans any
// leading #. Thanks for making this necessary, Firefox!
function get_fragment( url ) {
url = url || location.href;
return '#' + url.replace( /^[^#]*#?(.*)$/, '$1' );
};
// Method: jQuery.fn.hashchange
//
// Bind a handler to the window.onhashchange event or trigger all bound
// window.onhashchange event handlers. This behavior is consistent with
// jQuery's built-in event handlers.
//
// Usage:
//
// > jQuery(window).hashchange( [ handler ] );
//
// Arguments:
//
// handler - (Function) Optional handler to be bound to the hashchange
// event. This is a "shortcut" for the more verbose form:
// jQuery(window).bind( 'hashchange', handler ). If handler is omitted,
// all bound window.onhashchange event handlers will be triggered. This
// is a shortcut for the more verbose
// jQuery(window).trigger( 'hashchange' ). These forms are described in
// the <hashchange event> section.
//
// Returns:
//
// (jQuery) The initial jQuery collection of elements.
// Allow the "shortcut" format $(elem).hashchange( fn ) for binding and
// $(elem).hashchange() for triggering, like jQuery does for built-in events.
$.fn[ str_hashchange ] = function( fn ) {
return fn ? this.bind( str_hashchange, fn ) : this.trigger( str_hashchange );
};
// Property: jQuery.fn.hashchange.delay
//
// The numeric interval (in milliseconds) at which the <hashchange event>
// polling loop executes. Defaults to 50.
// Property: jQuery.fn.hashchange.domain
//
// If you're setting document.domain in your JavaScript, and you want hash
// history to work in IE6/7, not only must this property be set, but you must
// also set document.domain BEFORE jQuery is loaded into the page. This
// property is only applicable if you are supporting IE6/7 (or IE8 operating
// in "IE7 compatibility" mode).
//
// In addition, the <jQuery.fn.hashchange.src> property must be set to the
// path of the included "document-domain.html" file, which can be renamed or
// modified if necessary (note that the document.domain specified must be the
// same in both your main JavaScript as well as in this file).
//
// Usage:
//
// jQuery.fn.hashchange.domain = document.domain;
// Property: jQuery.fn.hashchange.src
//
// If, for some reason, you need to specify an Iframe src file (for example,
// when setting document.domain as in <jQuery.fn.hashchange.domain>), you can
// do so using this property. Note that when using this property, history
// won't be recorded in IE6/7 until the Iframe src file loads. This property
// is only applicable if you are supporting IE6/7 (or IE8 operating in "IE7
// compatibility" mode).
//
// Usage:
//
// jQuery.fn.hashchange.src = 'path/to/file.html';
$.fn[ str_hashchange ].delay = 50;
/*
$.fn[ str_hashchange ].domain = null;
$.fn[ str_hashchange ].src = null;
*/
// Event: hashchange event
//
// Fired when location.hash changes. In browsers that support it, the native
// HTML5 window.onhashchange event is used, otherwise a polling loop is
// initialized, running every <jQuery.fn.hashchange.delay> milliseconds to
// see if the hash has changed. In IE6/7 (and IE8 operating in "IE7
// compatibility" mode), a hidden Iframe is created to allow the back button
// and hash-based history to work.
//
// Usage as described in <jQuery.fn.hashchange>:
//
// > // Bind an event handler.
// > jQuery(window).hashchange( function(e) {
// > var hash = location.hash;
// > ...
// > });
// >
// > // Manually trigger the event handler.
// > jQuery(window).hashchange();
//
// A more verbose usage that allows for event namespacing:
//
// > // Bind an event handler.
// > jQuery(window).bind( 'hashchange', function(e) {
// > var hash = location.hash;
// > ...
// > });
// >
// > // Manually trigger the event handler.
// > jQuery(window).trigger( 'hashchange' );
//
// Additional Notes:
//
// * The polling loop and Iframe are not created until at least one handler
// is actually bound to the 'hashchange' event.
// * If you need the bound handler(s) to execute immediately, in cases where
// a location.hash exists on page load, via bookmark or page refresh for
// example, use jQuery(window).hashchange() or the more verbose
// jQuery(window).trigger( 'hashchange' ).
// * The event can be bound before DOM ready, but since it won't be usable
// before then in IE6/7 (due to the necessary Iframe), recommended usage is
// to bind it inside a DOM ready handler.
// Override existing $.event.special.hashchange methods (allowing this plugin
// to be defined after jQuery BBQ in BBQ's source code).
special[ str_hashchange ] = $.extend( special[ str_hashchange ], {
// Called only when the first 'hashchange' event is bound to window.
setup: function() {
// If window.onhashchange is supported natively, there's nothing to do..
if ( supports_onhashchange ) { return false; }
// Otherwise, we need to create our own. And we don't want to call this
// until the user binds to the event, just in case they never do, since it
// will create a polling loop and possibly even a hidden Iframe.
$( fake_onhashchange.start );
},
// Called only when the last 'hashchange' event is unbound from window.
teardown: function() {
// If window.onhashchange is supported natively, there's nothing to do..
if ( supports_onhashchange ) { return false; }
// Otherwise, we need to stop ours (if possible).
$( fake_onhashchange.stop );
}
});
// fake_onhashchange does all the work of triggering the window.onhashchange
// event for browsers that don't natively support it, including creating a
// polling loop to watch for hash changes and in IE 6/7 creating a hidden
// Iframe to enable back and forward.
fake_onhashchange = (function(){
var self = {},
timeout_id,
histories = [location.href.replace( /#.*/, '' )],
// Remember the initial hash so it doesn't get triggered immediately.
last_hash = get_fragment(),
fn_retval = function(val){ return val; },
history_set = fn_retval,
history_get = fn_retval;
// Start the polling loop.
self.start = function() {
timeout_id || poll();
};
// Stop the polling loop.
self.stop = function() {
timeout_id && clearTimeout( timeout_id );
timeout_id = undefined;
};
/*
* @bnolan hack to make work on nokia
*/
if(supports_onhashchange){
$.historyBack = function(){
history.back();
}
}else{
$.historyBack = function(){
if(histories.length > 1){
// Remove the top
histories.pop()
// Get the prior..
var url = histories.pop();
location.href = url;
}
}
}
/* end hack */
// This polling loop checks every $.fn.hashchange.delay milliseconds to see
// if location.hash has changed, and triggers the 'hashchange' event on
// window when necessary.
function poll() {
var hash = get_fragment(),
history_hash = history_get( last_hash );
if ( hash !== last_hash ) {
history_set( last_hash = hash, history_hash );
/*
* @bnolan hack to make work on nokia
*/
var url = location.href.replace( /#.*/, '' ) + hash;
histories.push(url);
/* end hack */
$(window).trigger( str_hashchange );
} else if ( history_hash !== last_hash ) {
location.href = location.href.replace( /#.*/, '' ) + history_hash;
}
timeout_id = setTimeout( poll, $.fn[ str_hashchange ].delay );
};
// vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
// vvvvvvvvvvvvvvvvvvv REMOVE IF NOT SUPPORTING IE6/7/8 vvvvvvvvvvvvvvvvvvv
// vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
$.browser.msie && !supports_onhashchange && (function(){
// Not only do IE6/7 need the "magical" Iframe treatment, but so does IE8
// when running in "IE7 compatibility" mode.
var iframe,
iframe_src;
// When the event is bound and polling starts in IE 6/7, create a hidden
// Iframe for history handling.
self.start = function(){
if ( !iframe ) {
iframe_src = $.fn[ str_hashchange ].src;
iframe_src = iframe_src && iframe_src + get_fragment();
// Create hidden Iframe. Attempt to make Iframe as hidden as possible
// by using techniques from http://www.paciellogroup.com/blog/?p=604.
iframe = $('<iframe tabindex="-1" title="empty"/>').hide()
// When Iframe has completely loaded, initialize the history and
// start polling.
.one( 'load', function(){
iframe_src || history_set( get_fragment() );
poll();
})
// Load Iframe src if specified, otherwise nothing.
.attr( 'src', iframe_src || 'javascript:0' )
// Append Iframe after the end of the body to prevent unnecessary
// initial page scrolling (yes, this works).
.insertAfter( 'body' )[0].contentWindow;
// Whenever `document.title` changes, update the Iframe's title to
// prettify the back/next history menu entries. Since IE sometimes
// errors with "Unspecified error" the very first time this is set
// (yes, very useful) wrap this with a try/catch block.
doc.onpropertychange = function(){
try {
if ( event.propertyName === 'title' ) {
iframe.document.title = doc.title;
}
} catch(e) {}
};
}
};
// Override the "stop" method since an IE6/7 Iframe was created. Even
// if there are no longer any bound event handlers, the polling loop
// is still necessary for back/next to work at all!
self.stop = fn_retval;
// Get history by looking at the hidden Iframe's location.hash.
history_get = function() {
return get_fragment( iframe.location.href );
};
// Set a new history item by opening and then closing the Iframe
// document, *then* setting its location.hash. If document.domain has
// been set, update that as well.
history_set = function( hash, history_hash ) {
var iframe_doc = iframe.document,