From 07f5140771388c9e0c8a99b0dd2e5d950bdb173b Mon Sep 17 00:00:00 2001 From: Yuchen Pei Date: Thu, 14 Oct 2021 15:16:42 +1100 Subject: moving h-source subdir out. --- Js/jquery/jquery.mobile-1.1.0.js | 7551 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 7551 insertions(+) create mode 100644 Js/jquery/jquery.mobile-1.1.0.js (limited to 'Js/jquery/jquery.mobile-1.1.0.js') diff --git a/Js/jquery/jquery.mobile-1.1.0.js b/Js/jquery/jquery.mobile-1.1.0.js new file mode 100644 index 0000000..c12426c --- /dev/null +++ b/Js/jquery/jquery.mobile-1.1.0.js @@ -0,0 +1,7551 @@ +/* +* jQuery Mobile Framework 1.1.0 db342b1f315c282692791aa870455901fdb46a55 +* http://jquerymobile.com +* +* Copyright 2011 (c) jQuery Project +* Dual licensed under the MIT or GPL Version 2 licenses. +* http://jquery.org/license +* +*/ +(function ( root, doc, factory ) { + if ( typeof define === "function" && define.amd ) { + // AMD. Register as an anonymous module. + define( [ "jquery" ], function ( $ ) { + factory( $, root, doc ); + return $.mobile; + }); + } else { + // Browser globals + factory( root.jQuery, root, doc ); + } +}( this, document, function ( $, window, document, undefined ) { + + +// This plugin is an experiment for abstracting away the touch and mouse +// events so that developers don't have to worry about which method of input +// the device their document is loaded on supports. +// +// The idea here is to allow the developer to register listeners for the +// basic mouse events, such as mousedown, mousemove, mouseup, and click, +// and the plugin will take care of registering the correct listeners +// behind the scenes to invoke the listener at the fastest possible time +// for that device, while still retaining the order of event firing in +// the traditional mouse environment, should multiple handlers be registered +// on the same element for different events. +// +// The current version exposes the following virtual events to jQuery bind methods: +// "vmouseover vmousedown vmousemove vmouseup vclick vmouseout vmousecancel" + +(function( $, window, document, undefined ) { + +var dataPropertyName = "virtualMouseBindings", + touchTargetPropertyName = "virtualTouchID", + virtualEventNames = "vmouseover vmousedown vmousemove vmouseup vclick vmouseout vmousecancel".split( " " ), + touchEventProps = "clientX clientY pageX pageY screenX screenY".split( " " ), + mouseHookProps = $.event.mouseHooks ? $.event.mouseHooks.props : [], + mouseEventProps = $.event.props.concat( mouseHookProps ), + activeDocHandlers = {}, + resetTimerID = 0, + startX = 0, + startY = 0, + didScroll = false, + clickBlockList = [], + blockMouseTriggers = false, + blockTouchTriggers = false, + eventCaptureSupported = "addEventListener" in document, + $document = $( document ), + nextTouchID = 1, + lastTouchID = 0; + +$.vmouse = { + moveDistanceThreshold: 10, + clickDistanceThreshold: 10, + resetTimerDuration: 1500 +}; + +function getNativeEvent( event ) { + + while ( event && typeof event.originalEvent !== "undefined" ) { + event = event.originalEvent; + } + return event; +} + +function createVirtualEvent( event, eventType ) { + + var t = event.type, + oe, props, ne, prop, ct, touch, i, j; + + event = $.Event(event); + event.type = eventType; + + oe = event.originalEvent; + props = $.event.props; + + // addresses separation of $.event.props in to $.event.mouseHook.props and Issue 3280 + // https://github.com/jquery/jquery-mobile/issues/3280 + if ( t.search( /^(mouse|click)/ ) > -1 ) { + props = mouseEventProps; + } + + // 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 ( oe ) { + for ( i = props.length, prop; i; ) { + prop = props[ --i ]; + event[ prop ] = oe[ prop ]; + } + } + + // make sure that if the mouse and click virtual events are generated + // without a .which one is defined + if ( t.search(/mouse(down|up)|click/) > -1 && !event.which ){ + event.which = 1; + } + + if ( t.search(/^touch/) !== -1 ) { + ne = getNativeEvent( oe ); + t = ne.touches; + ct = ne.changedTouches; + touch = ( t && t.length ) ? t[0] : ( (ct && ct.length) ? ct[ 0 ] : undefined ); + + if ( touch ) { + for ( j = 0, len = touchEventProps.length; j < len; j++){ + prop = touchEventProps[ j ]; + event[ prop ] = touch[ prop ]; + } + } + } + + return event; +} + +function getVirtualBindingFlags( element ) { + + var flags = {}, + b, k; + + while ( element ) { + + b = $.data( element, dataPropertyName ); + + for ( k in b ) { + if ( b[ k ] ) { + flags[ k ] = flags.hasVirtualBinding = true; + } + } + element = element.parentNode; + } + return flags; +} + +function getClosestElementWithVirtualBinding( element, eventType ) { + var b; + while ( element ) { + + b = $.data( element, dataPropertyName ); + + if ( b && ( !eventType || b[ eventType ] ) ) { + return element; + } + element = element.parentNode; + } + return null; +} + +function enableTouchBindings() { + blockTouchTriggers = false; +} + +function disableTouchBindings() { + blockTouchTriggers = true; +} + +function enableMouseBindings() { + lastTouchID = 0; + clickBlockList.length = 0; + blockMouseTriggers = false; + + // When mouse bindings are enabled, our + // touch bindings are disabled. + disableTouchBindings(); +} + +function disableMouseBindings() { + // When mouse bindings are disabled, our + // touch bindings are enabled. + enableTouchBindings(); +} + +function startResetTimer() { + clearResetTimer(); + resetTimerID = setTimeout(function(){ + resetTimerID = 0; + enableMouseBindings(); + }, $.vmouse.resetTimerDuration ); +} + +function clearResetTimer() { + if ( resetTimerID ){ + clearTimeout( resetTimerID ); + resetTimerID = 0; + } +} + +function triggerVirtualEvent( eventType, event, flags ) { + var ve; + + if ( ( flags && flags[ eventType ] ) || + ( !flags && getClosestElementWithVirtualBinding( event.target, eventType ) ) ) { + + ve = createVirtualEvent( event, eventType ); + + $( event.target).trigger( ve ); + } + + return ve; +} + +function mouseEventCallback( event ) { + var touchID = $.data(event.target, touchTargetPropertyName); + + if ( !blockMouseTriggers && ( !lastTouchID || lastTouchID !== touchID ) ){ + var ve = triggerVirtualEvent( "v" + event.type, event ); + if ( ve ) { + if ( ve.isDefaultPrevented() ) { + event.preventDefault(); + } + if ( ve.isPropagationStopped() ) { + event.stopPropagation(); + } + if ( ve.isImmediatePropagationStopped() ) { + event.stopImmediatePropagation(); + } + } + } +} + +function handleTouchStart( event ) { + + var touches = getNativeEvent( event ).touches, + target, flags; + + if ( touches && touches.length === 1 ) { + + target = event.target; + flags = getVirtualBindingFlags( target ); + + if ( flags.hasVirtualBinding ) { + + lastTouchID = nextTouchID++; + $.data( target, touchTargetPropertyName, lastTouchID ); + + clearResetTimer(); + + disableMouseBindings(); + didScroll = false; + + var t = getNativeEvent( event ).touches[ 0 ]; + startX = t.pageX; + startY = t.pageY; + + triggerVirtualEvent( "vmouseover", event, flags ); + triggerVirtualEvent( "vmousedown", event, flags ); + } + } +} + +function handleScroll( event ) { + if ( blockTouchTriggers ) { + return; + } + + if ( !didScroll ) { + triggerVirtualEvent( "vmousecancel", event, getVirtualBindingFlags( event.target ) ); + } + + didScroll = true; + startResetTimer(); +} + +function handleTouchMove( event ) { + if ( blockTouchTriggers ) { + return; + } + + var t = getNativeEvent( event ).touches[ 0 ], + didCancel = didScroll, + moveThreshold = $.vmouse.moveDistanceThreshold; + didScroll = didScroll || + ( Math.abs(t.pageX - startX) > moveThreshold || + Math.abs(t.pageY - startY) > moveThreshold ), + flags = getVirtualBindingFlags( event.target ); + + if ( didScroll && !didCancel ) { + triggerVirtualEvent( "vmousecancel", event, flags ); + } + + triggerVirtualEvent( "vmousemove", event, flags ); + startResetTimer(); +} + +function handleTouchEnd( event ) { + if ( blockTouchTriggers ) { + return; + } + + disableTouchBindings(); + + var flags = getVirtualBindingFlags( event.target ), + t; + triggerVirtualEvent( "vmouseup", event, flags ); + + if ( !didScroll ) { + var ve = triggerVirtualEvent( "vclick", event, flags ); + if ( ve && ve.isDefaultPrevented() ) { + // The target of the mouse events that follow the touchend + // event don't necessarily match the target used during the + // touch. This means we need to rely on coordinates for blocking + // any click that is generated. + t = getNativeEvent( event ).changedTouches[ 0 ]; + clickBlockList.push({ + touchID: lastTouchID, + x: t.clientX, + y: t.clientY + }); + + // Prevent any mouse events that follow from triggering + // virtual event notifications. + blockMouseTriggers = true; + } + } + triggerVirtualEvent( "vmouseout", event, flags); + didScroll = false; + + startResetTimer(); +} + +function hasVirtualBindings( ele ) { + var bindings = $.data( ele, dataPropertyName ), + k; + + if ( bindings ) { + for ( k in bindings ) { + if ( bindings[ k ] ) { + return true; + } + } + } + return false; +} + +function dummyMouseHandler(){} + +function getSpecialEventObject( eventType ) { + var realType = eventType.substr( 1 ); + + return { + setup: function( data, namespace ) { + // If this is the first virtual mouse binding for this element, + // add a bindings object to its data. + + if ( !hasVirtualBindings( this ) ) { + $.data( this, dataPropertyName, {}); + } + + // If setup is called, we know it is the first binding for this + // eventType, so initialize the count for the eventType to zero. + var bindings = $.data( this, dataPropertyName ); + bindings[ eventType ] = true; + + // If this is the first virtual mouse event for this type, + // register a global handler on the document. + + activeDocHandlers[ eventType ] = ( activeDocHandlers[ eventType ] || 0 ) + 1; + + if ( activeDocHandlers[ eventType ] === 1 ) { + $document.bind( realType, mouseEventCallback ); + } + + // Some browsers, like Opera Mini, won't dispatch mouse/click events + // for elements unless they actually have handlers registered on them. + // To get around this, we register dummy handlers on the elements. + + $( this ).bind( realType, dummyMouseHandler ); + + // For now, if event capture is not supported, we rely on mouse handlers. + if ( eventCaptureSupported ) { + // If this is the first virtual mouse binding for the document, + // register our touchstart handler on the document. + + activeDocHandlers[ "touchstart" ] = ( activeDocHandlers[ "touchstart" ] || 0) + 1; + + if (activeDocHandlers[ "touchstart" ] === 1) { + $document.bind( "touchstart", handleTouchStart ) + .bind( "touchend", handleTouchEnd ) + + // On touch platforms, touching the screen and then dragging your finger + // causes the window content to scroll after some distance threshold is + // exceeded. On these platforms, a scroll prevents a click event from being + // dispatched, and on some platforms, even the touchend is suppressed. To + // mimic the suppression of the click event, we need to watch for a scroll + // event. Unfortunately, some platforms like iOS don't dispatch scroll + // events until *AFTER* the user lifts their finger (touchend). This means + // we need to watch both scroll and touchmove events to figure out whether + // or not a scroll happenens before the touchend event is fired. + + .bind( "touchmove", handleTouchMove ) + .bind( "scroll", handleScroll ); + } + } + }, + + teardown: function( data, namespace ) { + // If this is the last virtual binding for this eventType, + // remove its global handler from the document. + + --activeDocHandlers[ eventType ]; + + if ( !activeDocHandlers[ eventType ] ) { + $document.unbind( realType, mouseEventCallback ); + } + + if ( eventCaptureSupported ) { + // If this is the last virtual mouse binding in existence, + // remove our document touchstart listener. + + --activeDocHandlers[ "touchstart" ]; + + if ( !activeDocHandlers[ "touchstart" ] ) { + $document.unbind( "touchstart", handleTouchStart ) + .unbind( "touchmove", handleTouchMove ) + .unbind( "touchend", handleTouchEnd ) + .unbind( "scroll", handleScroll ); + } + } + + var $this = $( this ), + bindings = $.data( this, dataPropertyName ); + + // teardown may be called when an element was + // removed from the DOM. If this is the case, + // jQuery core may have already stripped the element + // of any data bindings so we need to check it before + // using it. + if ( bindings ) { + bindings[ eventType ] = false; + } + + // Unregister the dummy event handler. + + $this.unbind( realType, dummyMouseHandler ); + + // If this is the last virtual mouse binding on the + // element, remove the binding data from the element. + + if ( !hasVirtualBindings( this ) ) { + $this.removeData( dataPropertyName ); + } + } + }; +} + +// Expose our custom events to the jQuery bind/unbind mechanism. + +for ( var i = 0; i < virtualEventNames.length; i++ ){ + $.event.special[ virtualEventNames[ i ] ] = getSpecialEventObject( virtualEventNames[ i ] ); +} + +// Add a capture click handler to block clicks. +// Note that we require event capture support for this so if the device +// doesn't support it, we punt for now and rely solely on mouse events. +if ( eventCaptureSupported ) { + document.addEventListener( "click", function( e ){ + var cnt = clickBlockList.length, + target = e.target, + x, y, ele, i, o, touchID; + + if ( cnt ) { + x = e.clientX; + y = e.clientY; + threshold = $.vmouse.clickDistanceThreshold; + + // The idea here is to run through the clickBlockList to see if + // the current click event is in the proximity of one of our + // vclick events that had preventDefault() called on it. If we find + // one, then we block the click. + // + // Why do we have to rely on proximity? + // + // Because the target of the touch event that triggered the vclick + // can be different from the target of the click event synthesized + // by the browser. The target of a mouse/click event that is syntehsized + // from a touch event seems to be implementation specific. For example, + // some browsers will fire mouse/click events for a link that is near + // a touch event, even though the target of the touchstart/touchend event + // says the user touched outside the link. Also, it seems that with most + // browsers, the target of the mouse/click event is not calculated until the + // time it is dispatched, so if you replace an element that you touched + // with another element, the target of the mouse/click will be the new + // element underneath that point. + // + // Aside from proximity, we also check to see if the target and any + // of its ancestors were the ones that blocked a click. This is necessary + // because of the strange mouse/click target calculation done in the + // Android 2.1 browser, where if you click on an element, and there is a + // mouse/click handler on one of its ancestors, the target will be the + // innermost child of the touched element, even if that child is no where + // near the point of touch. + + ele = target; + + while ( ele ) { + for ( i = 0; i < cnt; i++ ) { + o = clickBlockList[ i ]; + touchID = 0; + + if ( ( ele === target && Math.abs( o.x - x ) < threshold && Math.abs( o.y - y ) < threshold ) || + $.data( ele, touchTargetPropertyName ) === o.touchID ) { + // XXX: We may want to consider removing matches from the block list + // instead of waiting for the reset timer to fire. + e.preventDefault(); + e.stopPropagation(); + return; + } + } + ele = ele.parentNode; + } + } + }, true); +} +})( jQuery, window, document ); + + + +// 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){ + // 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 = $('