/*! * jQuery UI Widget 1.8.9 * * Copyright 2011, 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 ), methodValue = instance && $.isFunction( instance[options] ) ? instance[ options ].apply( instance, args ) : instance; // TODO: add this back in 1.9 and use $.error() (see #5972) // if ( !instance ) { // throw "cannot call methods on " + name + " prior to initialization; " + // "attempted to call method '" + options + "'"; // } // if ( !$.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() { return $.metadata && $.metadata.get( this.element[0] )[ this.widgetName ]; }, _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 !( $.isFunction(callback) && callback.call( this.element[0], event, data ) === false || event.isDefaultPrevented() ); } }; })( jQuery ); /* * jQuery Mobile Framework : widget factory extentions for mobile * Copyright (c) jQuery Project * Dual licensed under the MIT or GPL Version 2 licenses. * http://jquery.org/license */ (function($, undefined ) { $.widget( "mobile.widget", { _getCreateOptions: function() { var elem = this.element, options = {}; $.each( this.options, function( option ) { var value = elem.data( option.replace( /[A-Z]/g, function( c ) { return "-" + c.toLowerCase(); } ) ); if ( value !== undefined ) { options[ option ] = value; } }); return options; } }); })( jQuery ); /* * jQuery Mobile Framework : resolution and CSS media query related helpers and behavior * Copyright (c) jQuery Project * Dual licensed under the MIT or GPL Version 2 licenses. * http://jquery.org/license */ (function($, undefined ) { var $window = $(window), $html = $( "html" ), //media-query-like width breakpoints, which are translated to classes on the html element resolutionBreakpoints = [320,480,768,1024]; /* $.mobile.media method: pass a CSS media type or query and get a bool return note: this feature relies on actual media query support for media queries, though types will work most anywhere examples: $.mobile.media('screen') //>> tests for screen media type $.mobile.media('screen and (min-width: 480px)') //>> tests for screen media type with window width > 480px $.mobile.media('@media screen and (-webkit-min-device-pixel-ratio: 2)') //>> tests for webkit 2x pixel ratio (iPhone 4) */ $.mobile.media = (function() { // TODO: use window.matchMedia once at least one UA implements it var cache = {}, testDiv = $( "
" ), fakeBody = $( "" ).append( testDiv ); return function( query ) { if ( !( query in cache ) ) { var styleBlock = document.createElement('style'), cssrule = "@media " + query + " { #jquery-mediatest { position:absolute; } }"; //must set type for IE! styleBlock.type = "text/css"; if (styleBlock.styleSheet){ styleBlock.styleSheet.cssText = cssrule; } else { styleBlock.appendChild(document.createTextNode(cssrule)); } $html.prepend( fakeBody ).prepend( styleBlock ); cache[ query ] = testDiv.css( "position" ) === "absolute"; fakeBody.add( styleBlock ).remove(); } return cache[ query ]; }; })(); /* private function for adding/removing breakpoint classes to HTML element for faux media-query support It does not require media query support, instead using JS to detect screen width > cross-browser support This function is called on orientationchange, resize, and mobileinit, and is bound via the 'htmlclass' event namespace */ function detectResolutionBreakpoints(){ var currWidth = $window.width(), minPrefix = "min-width-", maxPrefix = "max-width-", minBreakpoints = [], maxBreakpoints = [], unit = "px", breakpointClasses; $html.removeClass( minPrefix + resolutionBreakpoints.join(unit + " " + minPrefix) + unit + " " + maxPrefix + resolutionBreakpoints.join( unit + " " + maxPrefix) + unit ); $.each(resolutionBreakpoints,function( i, breakPoint ){ if( currWidth >= breakPoint ){ minBreakpoints.push( minPrefix + breakPoint + unit ); } if( currWidth <= breakPoint ){ maxBreakpoints.push( maxPrefix + breakPoint + unit ); } }); if( minBreakpoints.length ){ breakpointClasses = minBreakpoints.join(" "); } if( maxBreakpoints.length ){ breakpointClasses += " " + maxBreakpoints.join(" "); } $html.addClass( breakpointClasses ); }; /* $.mobile.addResolutionBreakpoints method: pass either a number or an array of numbers and they'll be added to the min/max breakpoint classes Examples: $.mobile.addResolutionBreakpoints( 500 ); $.mobile.addResolutionBreakpoints( [500, 1200] ); */ $.mobile.addResolutionBreakpoints = function( newbps ){ if( $.type( newbps ) === "array" ){ resolutionBreakpoints = resolutionBreakpoints.concat( newbps ); } else { resolutionBreakpoints.push( newbps ); } resolutionBreakpoints.sort(function(a,b){ return a-b; }); detectResolutionBreakpoints(); }; /* on mobileinit, add classes to HTML element and set handlers to update those on orientationchange and resize*/ $(document).bind("mobileinit.htmlclass", function(){ /* bind to orientationchange and resize to add classes to HTML element for min/max breakpoints and orientation */ $window.bind("orientationchange.htmlclass resize.htmlclass", function(event){ //add orientation class to HTML element on flip/resize. if(event.orientation){ $html.removeClass( "portrait landscape" ).addClass( event.orientation ); //Set the min-height to the size of the fullscreen. This is to fix issue #455 if( event.orientation === 'portrait' ) { $( '.ui-page' ).css( 'minHeight', ( screen.availHeight >= screen.availWidth ) ? screen.availHeight : screen.availWidth); } else { $( '.ui-page' ).css( 'minHeight', ( screen.availHeight <= screen.availWidth ) ? screen.availHeight : screen.availWidth); } $.mobile.silentScroll(); } //add classes to HTML element for min/max breakpoints detectResolutionBreakpoints(); }); }); /* Manually trigger an orientationchange event when the dom ready event fires. This will ensure that any viewport meta tag that may have been injected has taken effect already, allowing us to properly calculate the width of the document. */ $(function(){ //trigger event manually $window.trigger( "orientationchange.htmlclass" ); }); })(jQuery); /* * jQuery Mobile Framework : support tests * Copyright (c) jQuery Project * Dual licensed under the MIT (MIT-LICENSE.txt) and GPL (GPL-LICENSE.txt) licenses. * Note: Code is in draft form and is subject to change */ (function($, undefined ) { var fakeBody = $( "" ).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 = $("head base"), fauxEle = null, href = ''; if (!base.length) { base = fauxEle = $("", {"href": fauxBase}).appendTo("head"); } else { href = base.attr("href"); } var link = $( "" ).prependTo( fakeBody ), rebase = link[0].href; base[0].href = href ? href : location.pathname; if (fauxEle) { fauxEle.remove(); } return rebase.indexOf(fauxBase) === 0; }; $.extend( $.support, { orientation: "orientation" in window, touch: "ontouchend" in document, cssTransitions: "WebKitTransitionEvent" in window, pushState: !!history.pushState, mediaquery: $.mobile.media('only all'), cssPseudoElement: !!propExists('content'), boxShadow: !!propExists('boxShadow') && !bb, scrollTop: ("pageXOffset" in window || "scrollTop" in document.documentElement || "scrollTop" in fakeBody[0]) && !webos, dynamicBaseTag: baseTagTest() }); fakeBody.remove(); //for ruling out shadows via css if( !$.support.boxShadow ){ $('html').addClass('ui-mobile-nosupport-boxshadow'); } })( jQuery ); /* * jQuery Mobile Framework : events * Copyright (c) jQuery Project * Dual licensed under the MIT or GPL Version 2 licenses. * http://jquery.org/license */ (function($, 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( "mousedown touchstart", function( event ) { if ( event.which && event.which !== 1 || //check if event fired once already by a device that fires both mousedown and touchstart (while supporting both events) $this.data( "prevEvent") && $this.data( "prevEvent") !== event.type ) { return false; } //save event type so only this type is let through for a temp duration, //allowing quick repetitive taps but not duplicative events $this.data( "prevEvent", event.type ); setTimeout(function(){ $this.removeData( "prevEvent" ); }, 800); var moved = false, touching = true, origTarget = event.target, origEvent = event.originalEvent, origPos = event.type == "touchstart" ? [origEvent.touches[0].pageX, origEvent.touches[0].pageY] : [ event.pageX, event.pageY ], originalType, timer; function moveHandler( event ) { if( event.type == "scroll" ){ moved = true; return; } var newPageXY = event.type == "touchmove" ? event.originalEvent.touches[0] : event; if ((Math.abs(origPos[0] - newPageXY.pageX) > 10) || (Math.abs(origPos[1] - newPageXY.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 ); //scroll now cancels tap $(window).one("scroll", moveHandler); $this .bind( "mousemove touchmove", moveHandler ) .one( "mouseup touchend", function( event ) { $this.unbind( "mousemove touchmove", moveHandler ); $(window).unbind("scroll", moveHandler); clearTimeout( timer ); touching = false; /* ONLY trigger a 'tap' event if the start target is * the same as the stop target. */ if ( !moved && ( origTarget == event.target ) ) { 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 // $(window).hashchange() like jQuery provides for built-in events. // Renamed jQuery.hashchangeDelay to and // lowered its default value to 50. Added // and properties plus document-domain.html // file to address access denied issues when setting document.domain in // IE6/7. // 1.2 - (2/11/2010) Fixed a bug where coming back to a page using this plugin // from a page on another domain would cause an error in Safari 4. Also, // IE6/7 Iframe is now inserted after the body (this actually works), // which prevents the page from scrolling when the event is first bound. // Event can also now be bound before DOM ready, but it won't be usable // before then in IE6/7. // 1.1 - (1/21/2010) Incorporated document.documentMode test to fix IE8 bug // where browser version is incorrectly reported as 8.0, despite // inclusion of the X-UA-Compatible IE=EmulateIE7 meta tag. // 1.0 - (1/9/2010) Initial Release. Broke out the jQuery BBQ event.special // window.onhashchange functionality into a separate plugin for users // who want just the basic event & back button support, without all the // extra awesomeness that BBQ provides. This plugin will be included as // part of jQuery BBQ, but also be available separately. (function($,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 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 // 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 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 ), 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 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 : // // > // 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, // 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; }; // 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 ); $(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 = $('