--- /dev/null
+/*!
+ * jQuery BBQ: Back Button & Query Library - v1.3pre - 8/26/2010
+ * http://benalman.com/projects/jquery-bbq-plugin/
+ *
+ * Copyright (c) 2010 "Cowboy" Ben Alman
+ * Dual licensed under the MIT and GPL licenses.
+ * http://benalman.com/about/license/
+ */
+
+// Script: jQuery BBQ: Back Button & Query Library
+//
+// *Version: 1.3pre, Last updated: 8/26/2010*
+//
+// Project Home - http://benalman.com/projects/jquery-bbq-plugin/
+// GitHub - http://github.com/cowboy/jquery-bbq/
+// Source - http://github.com/cowboy/jquery-bbq/raw/master/jquery.ba-bbq.js
+// (Minified) - http://github.com/cowboy/jquery-bbq/raw/master/jquery.ba-bbq.min.js (2.2kb 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.
+//
+// Basic AJAX - http://benalman.com/code/projects/jquery-bbq/examples/fragment-basic/
+// Advanced AJAX - http://benalman.com/code/projects/jquery-bbq/examples/fragment-advanced/
+// jQuery UI Tabs - http://benalman.com/code/projects/jquery-bbq/examples/fragment-jquery-ui-tabs/
+// Deparam - http://benalman.com/code/projects/jquery-bbq/examples/deparam/
+//
+// 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-bbq/unit/
+//
+// About: Release History
+//
+// 1.3pre - (8/26/2010) Integrated <jQuery hashchange event> v1.3, which adds
+// document.title and document.domain support in IE6/7, BlackBerry
+// support, better Iframe hiding for accessibility reasons, and the new
+// <jQuery.fn.hashchange> "shortcut" method. Added the
+// <jQuery.param.sorted> method which reduces the possibility of
+// extraneous hashchange event triggering. Added the
+// <jQuery.param.fragment.ajaxCrawlable> method which can be used to
+// enable Google "AJAX Crawlable mode."
+// 1.2.1 - (2/17/2010) Actually fixed the stale window.location Safari bug from
+// <jQuery hashchange event> in BBQ, which was the main reason for the
+// previous release!
+// 1.2 - (2/16/2010) Integrated <jQuery hashchange event> v1.2, which fixes a
+// Safari bug, the event can now be bound before DOM ready, and IE6/7
+// page should no longer scroll when the event is first bound. Also
+// added the <jQuery.param.fragment.noEscape> method, and reworked the
+// <hashchange event (BBQ)> internal "add" method to be compatible with
+// changes made to the jQuery 1.4.2 special events API.
+// 1.1.1 - (1/22/2010) Integrated <jQuery hashchange event> v1.1, which fixes an
+// obscure IE8 EmulateIE7 meta tag compatibility mode bug.
+// 1.1 - (1/9/2010) Broke out the jQuery BBQ event.special <hashchange event>
+// 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. See <jQuery hashchange event>
+// plugin for more information. Also added the <jQuery.bbq.removeState>
+// method and added additional <jQuery.deparam> examples.
+// 1.0.3 - (12/2/2009) Fixed an issue in IE 6 where location.search and
+// location.hash would report incorrectly if the hash contained the ?
+// character. Also <jQuery.param.querystring> and <jQuery.param.fragment>
+// will no longer parse params out of a URL that doesn't contain ? or #,
+// respectively.
+// 1.0.2 - (10/10/2009) Fixed an issue in IE 6/7 where the hidden IFRAME caused
+// a "This page contains both secure and nonsecure items." warning when
+// used on an https:// page.
+// 1.0.1 - (10/7/2009) Fixed an issue in IE 8. Since both "IE7" and "IE8
+// Compatibility View" modes erroneously report that the browser
+// supports the native window.onhashchange event, a slightly more
+// robust test needed to be added.
+// 1.0 - (10/2/2009) Initial release
+
+(function($,window){
+ '$:nomunge'; // Used by YUI compressor.
+
+ // Some convenient shortcuts.
+ var undefined,
+ aps = Array.prototype.slice,
+ decode = decodeURIComponent,
+
+ // Method / object references.
+ jq_param = $.param,
+ jq_param_sorted,
+ jq_param_fragment,
+ jq_deparam,
+ jq_deparam_fragment,
+ jq_bbq = $.bbq = $.bbq || {},
+ jq_bbq_pushState,
+ jq_bbq_getState,
+ jq_elemUrlAttr,
+ special = $.event.special,
+
+ // Reused strings.
+ str_hashchange = 'hashchange',
+ str_querystring = 'querystring',
+ str_fragment = 'fragment',
+ str_elemUrlAttr = 'elemUrlAttr',
+ str_href = 'href',
+ str_src = 'src',
+
+ // Reused RegExp.
+ re_params_querystring = /^.*\?|#.*$/g,
+ re_params_fragment,
+ re_fragment,
+ re_no_escape,
+
+ ajax_crawlable,
+ fragment_prefix,
+
+ // Used by jQuery.elemUrlAttr.
+ elemUrlAttr_cache = {};
+
+ // A few commonly used bits, broken out to help reduce minified file size.
+
+ function is_string( arg ) {
+ return typeof arg === 'string';
+ };
+
+ // Why write the same function twice? Let's curry! Mmmm, curry..
+
+ function curry( func ) {
+ var args = aps.call( arguments, 1 );
+
+ return function() {
+ return func.apply( this, args.concat( aps.call( arguments ) ) );
+ };
+ };
+
+ // 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 ) {
+ return url.replace( re_fragment, '$2' );
+ };
+
+ // Get location.search (or what you'd expect location.search to be) sans any
+ // leading #. Thanks for making this necessary, IE6!
+ function get_querystring( url ) {
+ return url.replace( /(?:^[^?#]*\?([^#]*).*$)?.*/, '$1' );
+ };
+
+ // Section: Param (to string)
+ //
+ // Method: jQuery.param.querystring
+ //
+ // Retrieve the query string from a URL or if no arguments are passed, the
+ // current window.location.href.
+ //
+ // Usage:
+ //
+ // > jQuery.param.querystring( [ url ] );
+ //
+ // Arguments:
+ //
+ // url - (String) A URL containing query string params to be parsed. If url
+ // is not passed, the current window.location.href is used.
+ //
+ // Returns:
+ //
+ // (String) The parsed query string, with any leading "?" removed.
+ //
+
+ // Method: jQuery.param.querystring (build url)
+ //
+ // Merge a URL, with or without pre-existing query string params, plus any
+ // object, params string or URL containing query string params into a new URL.
+ //
+ // Usage:
+ //
+ // > jQuery.param.querystring( url, params [, merge_mode ] );
+ //
+ // Arguments:
+ //
+ // url - (String) A valid URL for params to be merged into. This URL may
+ // contain a query string and/or fragment (hash).
+ // params - (String) A params string or URL containing query string params to
+ // be merged into url.
+ // params - (Object) A params object to be merged into url.
+ // merge_mode - (Number) Merge behavior defaults to 0 if merge_mode is not
+ // specified, and is as-follows:
+ //
+ // * 0: params in the params argument will override any query string
+ // params in url.
+ // * 1: any query string params in url will override params in the params
+ // argument.
+ // * 2: params argument will completely replace any query string in url.
+ //
+ // Returns:
+ //
+ // (String) A URL with a urlencoded query string in the format '?a=b&c=d&e=f'.
+
+ // Method: jQuery.param.fragment
+ //
+ // Retrieve the fragment (hash) from a URL or if no arguments are passed, the
+ // current window.location.href.
+ //
+ // Usage:
+ //
+ // > jQuery.param.fragment( [ url ] );
+ //
+ // Arguments:
+ //
+ // url - (String) A URL containing fragment (hash) params to be parsed. If
+ // url is not passed, the current window.location.href is used.
+ //
+ // Returns:
+ //
+ // (String) The parsed fragment (hash) string, with any leading "#" removed.
+
+ // Method: jQuery.param.fragment (build url)
+ //
+ // Merge a URL, with or without pre-existing fragment (hash) params, plus any
+ // object, params string or URL containing fragment (hash) params into a new
+ // URL.
+ //
+ // Usage:
+ //
+ // > jQuery.param.fragment( url, params [, merge_mode ] );
+ //
+ // Arguments:
+ //
+ // url - (String) A valid URL for params to be merged into. This URL may
+ // contain a query string and/or fragment (hash).
+ // params - (String) A params string or URL containing fragment (hash) params
+ // to be merged into url.
+ // params - (Object) A params object to be merged into url.
+ // merge_mode - (Number) Merge behavior defaults to 0 if merge_mode is not
+ // specified, and is as-follows:
+ //
+ // * 0: params in the params argument will override any fragment (hash)
+ // params in url.
+ // * 1: any fragment (hash) params in url will override params in the
+ // params argument.
+ // * 2: params argument will completely replace any query string in url.
+ //
+ // Returns:
+ //
+ // (String) A URL with a urlencoded fragment (hash) in the format '#a=b&c=d&e=f'.
+
+ function jq_param_sub( is_fragment, get_func, url, params, merge_mode ) {
+ var result,
+ qs,
+ matches,
+ url_params,
+ hash;
+
+ if ( params !== undefined ) {
+ // Build URL by merging params into url string.
+
+ // matches[1] = url part that precedes params, not including trailing ?/#
+ // matches[2] = params, not including leading ?/#
+ // matches[3] = if in 'querystring' mode, hash including leading #, otherwise ''
+ matches = url.match( is_fragment ? re_fragment : /^([^#?]*)\??([^#]*)(#?.*)/ );
+
+ // Get the hash if in 'querystring' mode, and it exists.
+ hash = matches[3] || '';
+
+ if ( merge_mode === 2 && is_string( params ) ) {
+ // If merge_mode is 2 and params is a string, merge the fragment / query
+ // string into the URL wholesale, without converting it into an object.
+ qs = params.replace( is_fragment ? re_params_fragment : re_params_querystring, '' );
+
+ } else {
+ // Convert relevant params in url to object.
+ url_params = jq_deparam( matches[2] );
+
+ params = is_string( params )
+
+ // Convert passed params string into object.
+ ? jq_deparam[ is_fragment ? str_fragment : str_querystring ]( params )
+
+ // Passed params object.
+ : params;
+
+ qs = merge_mode === 2 ? params // passed params replace url params
+ : merge_mode === 1 ? $.extend( {}, params, url_params ) // url params override passed params
+ : $.extend( {}, url_params, params ); // passed params override url params
+
+ // Convert params object into a sorted params string.
+ qs = jq_param_sorted( qs );
+
+ // Unescape characters specified via $.param.noEscape. Since only hash-
+ // history users have requested this feature, it's only enabled for
+ // fragment-related params strings.
+ if ( is_fragment ) {
+ qs = qs.replace( re_no_escape, decode );
+ }
+ }
+
+ // Build URL from the base url, querystring and hash. In 'querystring'
+ // mode, ? is only added if a query string exists. In 'fragment' mode, #
+ // is always added.
+ result = matches[1] + ( is_fragment ? fragment_prefix : qs || !matches[1] ? '?' : '' ) + qs + hash;
+
+ } else {
+ // If URL was passed in, parse params from URL string, otherwise parse
+ // params from window.location.href.
+ result = get_func( url !== undefined ? url : location.href );
+ }
+
+ return result;
+ };
+
+ jq_param[ str_querystring ] = curry( jq_param_sub, 0, get_querystring );
+ jq_param[ str_fragment ] = jq_param_fragment = curry( jq_param_sub, 1, get_fragment );
+
+ // Method: jQuery.param.sorted
+ //
+ // Returns a params string equivalent to that returned by the internal
+ // jQuery.param method, but sorted, which makes it suitable for use as a
+ // cache key.
+ //
+ // For example, in most browsers jQuery.param({z:1,a:2}) returns "z=1&a=2"
+ // and jQuery.param({a:2,z:1}) returns "a=2&z=1". Even though both the
+ // objects being serialized and the resulting params strings are equivalent,
+ // if these params strings were set into the location.hash fragment
+ // sequentially, the hashchange event would be triggered unnecessarily, since
+ // the strings are different (even though the data described by them is the
+ // same). By sorting the params string, unecessary hashchange event triggering
+ // can be avoided.
+ //
+ // Usage:
+ //
+ // > jQuery.param.sorted( obj [, traditional ] );
+ //
+ // Arguments:
+ //
+ // obj - (Object) An object to be serialized.
+ // traditional - (Boolean) Params deep/shallow serialization mode. See the
+ // documentation at http://api.jquery.com/jQuery.param/ for more detail.
+ //
+ // Returns:
+ //
+ // (String) A sorted params string.
+
+ jq_param.sorted = jq_param_sorted = function( a, traditional ) {
+ var arr = [],
+ obj = {};
+
+ $.each( jq_param( a, traditional ).split( '&' ), function(i,v){
+ var key = v.replace( /(?:%5B|=).*$/, '' ),
+ key_obj = obj[ key ];
+
+ if ( !key_obj ) {
+ key_obj = obj[ key ] = [];
+ arr.push( key );
+ }
+
+ key_obj.push( v );
+ });
+
+ return $.map( arr.sort(), function(v){
+ return obj[ v ];
+ }).join( '&' );
+ };
+
+ // Method: jQuery.param.fragment.noEscape
+ //
+ // Specify characters that will be left unescaped when fragments are created
+ // or merged using <jQuery.param.fragment>, or when the fragment is modified
+ // using <jQuery.bbq.pushState>. This option only applies to serialized data
+ // object fragments, and not set-as-string fragments. Does not affect the
+ // query string. Defaults to ",/" (comma, forward slash).
+ //
+ // Note that this is considered a purely aesthetic option, and will help to
+ // create URLs that "look pretty" in the address bar or bookmarks, without
+ // affecting functionality in any way. That being said, be careful to not
+ // unescape characters that are used as delimiters or serve a special
+ // purpose, such as the "#?&=+" (octothorpe, question mark, ampersand,
+ // equals, plus) characters.
+ //
+ // Usage:
+ //
+ // > jQuery.param.fragment.noEscape( [ chars ] );
+ //
+ // Arguments:
+ //
+ // chars - (String) The characters to not escape in the fragment. If
+ // unspecified, defaults to empty string (escape all characters).
+ //
+ // Returns:
+ //
+ // Nothing.
+
+ jq_param_fragment.noEscape = function( chars ) {
+ chars = chars || '';
+ var arr = $.map( chars.split(''), encodeURIComponent );
+ re_no_escape = new RegExp( arr.join('|'), 'g' );
+ };
+
+ // A sensible default. These are the characters people seem to complain about
+ // "uglifying up the URL" the most.
+ jq_param_fragment.noEscape( ',/' );
+
+ // Method: jQuery.param.fragment.ajaxCrawlable
+ //
+ // TODO: DESCRIBE
+ //
+ // Usage:
+ //
+ // > jQuery.param.fragment.ajaxCrawlable( [ state ] );
+ //
+ // Arguments:
+ //
+ // state - (Boolean) TODO: DESCRIBE
+ //
+ // Returns:
+ //
+ // (Boolean) The current ajaxCrawlable state.
+
+ jq_param_fragment.ajaxCrawlable = function( state ) {
+ if ( state !== undefined ) {
+ if ( state ) {
+ re_params_fragment = /^.*(?:#!|#)/;
+ re_fragment = /^([^#]*)(?:#!|#)?(.*)$/;
+ fragment_prefix = '#!';
+ } else {
+ re_params_fragment = /^.*#/;
+ re_fragment = /^([^#]*)#?(.*)$/;
+ fragment_prefix = '#';
+ }
+ ajax_crawlable = !!state;
+ }
+
+ return ajax_crawlable;
+ };
+
+ jq_param_fragment.ajaxCrawlable( 0 );
+
+ // Section: Deparam (from string)
+ //
+ // Method: jQuery.deparam
+ //
+ // Deserialize a params string into an object, optionally coercing numbers,
+ // booleans, null and undefined values; this method is the counterpart to the
+ // internal jQuery.param method.
+ //
+ // Usage:
+ //
+ // > jQuery.deparam( params [, coerce ] );
+ //
+ // Arguments:
+ //
+ // params - (String) A params string to be parsed.
+ // coerce - (Boolean) If true, coerces any numbers or true, false, null, and
+ // undefined to their actual value. Defaults to false if omitted.
+ //
+ // Returns:
+ //
+ // (Object) An object representing the deserialized params string.
+
+ $.deparam = jq_deparam = function( params, coerce ) {
+ var obj = {},
+ coerce_types = { 'true': !0, 'false': !1, 'null': null };
+
+ // Iterate over all name=value pairs.
+ $.each( params.replace( /\+/g, ' ' ).split( '&' ), function(j,v){
+ var param = v.split( '=' ),
+ key = decode( param[0] ),
+ val,
+ cur = obj,
+ i = 0,
+
+ // If key is more complex than 'foo', like 'a[]' or 'a[b][c]', split it
+ // into its component parts.
+ keys = key.split( '][' ),
+ keys_last = keys.length - 1;
+
+ // If the first keys part contains [ and the last ends with ], then []
+ // are correctly balanced.
+ if ( /\[/.test( keys[0] ) && /\]$/.test( keys[ keys_last ] ) ) {
+ // Remove the trailing ] from the last keys part.
+ keys[ keys_last ] = keys[ keys_last ].replace( /\]$/, '' );
+
+ // Split first keys part into two parts on the [ and add them back onto
+ // the beginning of the keys array.
+ keys = keys.shift().split('[').concat( keys );
+
+ keys_last = keys.length - 1;
+ } else {
+ // Basic 'foo' style key.
+ keys_last = 0;
+ }
+
+ // Are we dealing with a name=value pair, or just a name?
+ if ( param.length === 2 ) {
+ val = decode( param[1] );
+
+ // Coerce values.
+ if ( coerce ) {
+ val = val && !isNaN(val) ? +val // number
+ : val === 'undefined' ? undefined // undefined
+ : coerce_types[val] !== undefined ? coerce_types[val] // true, false, null
+ : val; // string
+ }
+
+ if ( keys_last ) {
+ // Complex key, build deep object structure based on a few rules:
+ // * The 'cur' pointer starts at the object top-level.
+ // * [] = array push (n is set to array length), [n] = array if n is
+ // numeric, otherwise object.
+ // * If at the last keys part, set the value.
+ // * For each keys part, if the current level is undefined create an
+ // object or array based on the type of the next keys part.
+ // * Move the 'cur' pointer to the next level.
+ // * Rinse & repeat.
+ for ( ; i <= keys_last; i++ ) {
+ key = keys[i] === '' ? cur.length : keys[i];
+ cur = cur[key] = i < keys_last
+ ? cur[key] || ( keys[i+1] && isNaN( keys[i+1] ) ? {} : [] )
+ : val;
+ }
+
+ } else {
+ // Simple key, even simpler rules, since only scalars and shallow
+ // arrays are allowed.
+
+ if ( $.isArray( obj[key] ) ) {
+ // val is already an array, so push on the next value.
+ obj[key].push( val );
+
+ } else if ( obj[key] !== undefined ) {
+ // val isn't an array, but since a second value has been specified,
+ // convert val into an array.
+ obj[key] = [ obj[key], val ];
+
+ } else {
+ // val is a scalar.
+ obj[key] = val;
+ }
+ }
+
+ } else if ( key ) {
+ // No value was defined, so set something meaningful.
+ obj[key] = coerce
+ ? undefined
+ : '';
+ }
+ });
+
+ return obj;
+ };
+
+ // Method: jQuery.deparam.querystring
+ //
+ // Parse the query string from a URL or the current window.location.href,
+ // deserializing it into an object, optionally coercing numbers, booleans,
+ // null and undefined values.
+ //
+ // Usage:
+ //
+ // > jQuery.deparam.querystring( [ url ] [, coerce ] );
+ //
+ // Arguments:
+ //
+ // url - (String) An optional params string or URL containing query string
+ // params to be parsed. If url is omitted, the current
+ // window.location.href is used.
+ // coerce - (Boolean) If true, coerces any numbers or true, false, null, and
+ // undefined to their actual value. Defaults to false if omitted.
+ //
+ // Returns:
+ //
+ // (Object) An object representing the deserialized params string.
+
+ // Method: jQuery.deparam.fragment
+ //
+ // Parse the fragment (hash) from a URL or the current window.location.href,
+ // deserializing it into an object, optionally coercing numbers, booleans,
+ // null and undefined values.
+ //
+ // Usage:
+ //
+ // > jQuery.deparam.fragment( [ url ] [, coerce ] );
+ //
+ // Arguments:
+ //
+ // url - (String) An optional params string or URL containing fragment (hash)
+ // params to be parsed. If url is omitted, the current window.location.href
+ // is used.
+ // coerce - (Boolean) If true, coerces any numbers or true, false, null, and
+ // undefined to their actual value. Defaults to false if omitted.
+ //
+ // Returns:
+ //
+ // (Object) An object representing the deserialized params string.
+
+ function jq_deparam_sub( is_fragment, url_or_params, coerce ) {
+ if ( url_or_params === undefined || typeof url_or_params === 'boolean' ) {
+ // url_or_params not specified.
+ coerce = url_or_params;
+ url_or_params = jq_param[ is_fragment ? str_fragment : str_querystring ]();
+ } else {
+ url_or_params = is_string( url_or_params )
+ ? url_or_params.replace( is_fragment ? re_params_fragment : re_params_querystring, '' )
+ : url_or_params;
+ }
+
+ return jq_deparam( url_or_params, coerce );
+ };
+
+ jq_deparam[ str_querystring ] = curry( jq_deparam_sub, 0 );
+ jq_deparam[ str_fragment ] = jq_deparam_fragment = curry( jq_deparam_sub, 1 );
+
+ // Section: Element manipulation
+ //
+ // Method: jQuery.elemUrlAttr
+ //
+ // Get the internal "Default URL attribute per tag" list, or augment the list
+ // with additional tag-attribute pairs, in case the defaults are insufficient.
+ //
+ // In the <jQuery.fn.querystring> and <jQuery.fn.fragment> methods, this list
+ // is used to determine which attribute contains the URL to be modified, if
+ // an "attr" param is not specified.
+ //
+ // Default Tag-Attribute List:
+ //
+ // a - href
+ // base - href
+ // iframe - src
+ // img - src
+ // input - src
+ // form - action
+ // link - href
+ // script - src
+ //
+ // Usage:
+ //
+ // > jQuery.elemUrlAttr( [ tag_attr ] );
+ //
+ // Arguments:
+ //
+ // tag_attr - (Object) An object containing a list of tag names and their
+ // associated default attribute names in the format { tag: 'attr', ... } to
+ // be merged into the internal tag-attribute list.
+ //
+ // Returns:
+ //
+ // (Object) An object containing all stored tag-attribute values.
+
+ // Only define function and set defaults if function doesn't already exist, as
+ // the urlInternal plugin will provide this method as well.
+ $[ str_elemUrlAttr ] || ($[ str_elemUrlAttr ] = function( obj ) {
+ return $.extend( elemUrlAttr_cache, obj );
+ })({
+ a: str_href,
+ base: str_href,
+ iframe: str_src,
+ img: str_src,
+ input: str_src,
+ form: 'action',
+ link: str_href,
+ script: str_src
+ });
+
+ jq_elemUrlAttr = $[ str_elemUrlAttr ];
+
+ // Method: jQuery.fn.querystring
+ //
+ // Update URL attribute in one or more elements, merging the current URL (with
+ // or without pre-existing query string params) plus any params object or
+ // string into a new URL, which is then set into that attribute. Like
+ // <jQuery.param.querystring (build url)>, but for all elements in a jQuery
+ // collection.
+ //
+ // Usage:
+ //
+ // > jQuery('selector').querystring( [ attr, ] params [, merge_mode ] );
+ //
+ // Arguments:
+ //
+ // attr - (String) Optional name of an attribute that will contain a URL to
+ // merge params or url into. See <jQuery.elemUrlAttr> for a list of default
+ // attributes.
+ // params - (Object) A params object to be merged into the URL attribute.
+ // params - (String) A URL containing query string params, or params string
+ // to be merged into the URL attribute.
+ // merge_mode - (Number) Merge behavior defaults to 0 if merge_mode is not
+ // specified, and is as-follows:
+ //
+ // * 0: params in the params argument will override any params in attr URL.
+ // * 1: any params in attr URL will override params in the params argument.
+ // * 2: params argument will completely replace any query string in attr
+ // URL.
+ //
+ // Returns:
+ //
+ // (jQuery) The initial jQuery collection of elements, but with modified URL
+ // attribute values.
+
+ // Method: jQuery.fn.fragment
+ //
+ // Update URL attribute in one or more elements, merging the current URL (with
+ // or without pre-existing fragment/hash params) plus any params object or
+ // string into a new URL, which is then set into that attribute. Like
+ // <jQuery.param.fragment (build url)>, but for all elements in a jQuery
+ // collection.
+ //
+ // Usage:
+ //
+ // > jQuery('selector').fragment( [ attr, ] params [, merge_mode ] );
+ //
+ // Arguments:
+ //
+ // attr - (String) Optional name of an attribute that will contain a URL to
+ // merge params into. See <jQuery.elemUrlAttr> for a list of default
+ // attributes.
+ // params - (Object) A params object to be merged into the URL attribute.
+ // params - (String) A URL containing fragment (hash) params, or params
+ // string to be merged into the URL attribute.
+ // merge_mode - (Number) Merge behavior defaults to 0 if merge_mode is not
+ // specified, and is as-follows:
+ //
+ // * 0: params in the params argument will override any params in attr URL.
+ // * 1: any params in attr URL will override params in the params argument.
+ // * 2: params argument will completely replace any fragment (hash) in attr
+ // URL.
+ //
+ // Returns:
+ //
+ // (jQuery) The initial jQuery collection of elements, but with modified URL
+ // attribute values.
+
+ function jq_fn_sub( mode, force_attr, params, merge_mode ) {
+ if ( !is_string( params ) && typeof params !== 'object' ) {
+ // force_attr not specified.
+ merge_mode = params;
+ params = force_attr;
+ force_attr = undefined;
+ }
+
+ return this.each(function(){
+ var that = $(this),
+
+ // Get attribute specified, or default specified via $.elemUrlAttr.
+ attr = force_attr || jq_elemUrlAttr()[ ( this.nodeName || '' ).toLowerCase() ] || '',
+
+ // Get URL value.
+ url = attr && that.attr( attr ) || '';
+
+ // Update attribute with new URL.
+ that.attr( attr, jq_param[ mode ]( url, params, merge_mode ) );
+ });
+
+ };
+
+ $.fn[ str_querystring ] = curry( jq_fn_sub, str_querystring );
+ $.fn[ str_fragment ] = curry( jq_fn_sub, str_fragment );
+
+ // Section: History, hashchange event
+ //
+ // Method: jQuery.bbq.pushState
+ //
+ // Adds a 'state' into the browser history at the current position, setting
+ // location.hash and triggering any bound <hashchange event> callbacks
+ // (provided the new state is different than the previous state).
+ //
+ // If no arguments are passed, an empty state is created, which is just a
+ // shortcut for jQuery.bbq.pushState( {}, 2 ).
+ //
+ // Usage:
+ //
+ // > jQuery.bbq.pushState( [ params [, merge_mode ] ] );
+ //
+ // Arguments:
+ //
+ // params - (String) A serialized params string or a hash string beginning
+ // with # to merge into location.hash.
+ // params - (Object) A params object to merge into location.hash.
+ // merge_mode - (Number) Merge behavior defaults to 0 if merge_mode is not
+ // specified (unless a hash string beginning with # is specified, in which
+ // case merge behavior defaults to 2), and is as-follows:
+ //
+ // * 0: params in the params argument will override any params in the
+ // current state.
+ // * 1: any params in the current state will override params in the params
+ // argument.
+ // * 2: params argument will completely replace current state.
+ //
+ // Returns:
+ //
+ // Nothing.
+ //
+ // Additional Notes:
+ //
+ // * Setting an empty state may cause the browser to scroll.
+ // * Unlike the fragment and querystring methods, if a hash string beginning
+ // with # is specified as the params agrument, merge_mode defaults to 2.
+
+ jq_bbq.pushState = jq_bbq_pushState = function( params, merge_mode ) {
+ if ( is_string( params ) && /^#/.test( params ) && merge_mode === undefined ) {
+ // Params string begins with # and merge_mode not specified, so completely
+ // overwrite window.location.hash.
+ merge_mode = 2;
+ }
+
+ var has_args = params !== undefined,
+ // Merge params into window.location using $.param.fragment.
+ url = jq_param_fragment( location.href,
+ has_args ? params : {}, has_args ? merge_mode : 2 );
+
+ // Set new window.location.href. Note that Safari 3 & Chrome barf on
+ // location.hash = '#' so the entire URL is set.
+ location.href = url;
+ };
+
+ // Method: jQuery.bbq.getState
+ //
+ // Retrieves the current 'state' from the browser history, parsing
+ // location.hash for a specific key or returning an object containing the
+ // entire state, optionally coercing numbers, booleans, null and undefined
+ // values.
+ //
+ // Usage:
+ //
+ // > jQuery.bbq.getState( [ key ] [, coerce ] );
+ //
+ // Arguments:
+ //
+ // key - (String) An optional state key for which to return a value.
+ // coerce - (Boolean) If true, coerces any numbers or true, false, null, and
+ // undefined to their actual value. Defaults to false.
+ //
+ // Returns:
+ //
+ // (Anything) If key is passed, returns the value corresponding with that key
+ // in the location.hash 'state', or undefined. If not, an object
+ // representing the entire 'state' is returned.
+
+ jq_bbq.getState = jq_bbq_getState = function( key, coerce ) {
+ return key === undefined || typeof key === 'boolean'
+ ? jq_deparam_fragment( key ) // 'key' really means 'coerce' here
+ : jq_deparam_fragment( coerce )[ key ];
+ };
+
+ // Method: jQuery.bbq.removeState
+ //
+ // Remove one or more keys from the current browser history 'state', creating
+ // a new state, setting location.hash and triggering any bound
+ // <hashchange event> callbacks (provided the new state is different than
+ // the previous state).
+ //
+ // If no arguments are passed, an empty state is created, which is just a
+ // shortcut for jQuery.bbq.pushState( {}, 2 ).
+ //
+ // Usage:
+ //
+ // > jQuery.bbq.removeState( [ key [, key ... ] ] );
+ //
+ // Arguments:
+ //
+ // key - (String) One or more key values to remove from the current state,
+ // passed as individual arguments.
+ // key - (Array) A single array argument that contains a list of key values
+ // to remove from the current state.
+ //
+ // Returns:
+ //
+ // Nothing.
+ //
+ // Additional Notes:
+ //
+ // * Setting an empty state may cause the browser to scroll.
+
+ jq_bbq.removeState = function( arr ) {
+ var state = {};
+
+ // If one or more arguments is passed..
+ if ( arr !== undefined ) {
+
+ // Get the current state.
+ state = jq_bbq_getState();
+
+ // For each passed key, delete the corresponding property from the current
+ // state.
+ $.each( $.isArray( arr ) ? arr : arguments, function(i,v){
+ delete state[ v ];
+ });
+ }
+
+ // Set the state, completely overriding any existing state.
+ jq_bbq_pushState( state, 2 );
+ };
+
+ // Event: hashchange event (BBQ)
+ //
+ // Usage in jQuery 1.4 and newer:
+ //
+ // In jQuery 1.4 and newer, the event object passed into any hashchange event
+ // callback is augmented with a copy of the location.hash fragment at the time
+ // the event was triggered as its event.fragment property. In addition, the
+ // event.getState method operates on this property (instead of location.hash)
+ // which allows this fragment-as-a-state to be referenced later, even after
+ // window.location may have changed.
+ //
+ // Note that event.fragment and event.getState are not defined according to
+ // W3C (or any other) specification, but will still be available whether or
+ // not the hashchange event exists natively in the browser, because of the
+ // utility they provide.
+ //
+ // The event.fragment property contains the output of <jQuery.param.fragment>
+ // and the event.getState method is equivalent to the <jQuery.bbq.getState>
+ // method.
+ //
+ // > $(window).bind( 'hashchange', function( event ) {
+ // > var hash_str = event.fragment,
+ // > param_obj = event.getState(),
+ // > param_val = event.getState( 'param_name' ),
+ // > param_val_coerced = event.getState( 'param_name', true );
+ // > ...
+ // > });
+ //
+ // Usage in jQuery 1.3.2:
+ //
+ // In jQuery 1.3.2, the event object cannot to be augmented as in jQuery 1.4+,
+ // so the fragment state isn't bound to the event object and must instead be
+ // parsed using the <jQuery.param.fragment> and <jQuery.bbq.getState> methods.
+ //
+ // > $(window).bind( 'hashchange', function( event ) {
+ // > var hash_str = $.param.fragment(),
+ // > param_obj = $.bbq.getState(),
+ // > param_val = $.bbq.getState( 'param_name' ),
+ // > param_val_coerced = $.bbq.getState( 'param_name', true );
+ // > ...
+ // > });
+ //
+ // Additional Notes:
+ //
+ // * Due to changes in the special events API, jQuery BBQ v1.2 or newer is
+ // required to enable the augmented event object in jQuery 1.4.2 and newer.
+ // * See <jQuery hashchange event> for more detailed information.
+
+ special[ str_hashchange ] = $.extend( special[ str_hashchange ], {
+
+ // Augmenting the event object with the .fragment property and .getState
+ // method requires jQuery 1.4 or newer. Note: with 1.3.2, everything will
+ // work, but the event won't be augmented)
+ add: function( handleObj ) {
+ var old_handler;
+
+ function new_handler(e) {
+ // e.fragment is set to the value of location.hash (with any leading #
+ // removed) at the time the event is triggered.
+ var hash = e[ str_fragment ] = jq_param_fragment();
+
+ // e.getState() works just like $.bbq.getState(), but uses the
+ // e.fragment property stored on the event object.
+ e.getState = function( key, coerce ) {
+ return key === undefined || typeof key === 'boolean'
+ ? jq_deparam( hash, key ) // 'key' really means 'coerce' here
+ : jq_deparam( hash, coerce )[ key ];
+ };
+
+ old_handler.apply( this, arguments );
+ };
+
+ // This may seem a little complicated, but it normalizes the special event
+ // .add method between jQuery 1.4/1.4.1 and 1.4.2+
+ if ( $.isFunction( handleObj ) ) {
+ // 1.4, 1.4.1
+ old_handler = handleObj;
+ return new_handler;
+ } else {
+ // 1.4.2+
+ old_handler = handleObj.handler;
+ handleObj.handler = new_handler;
+ }
+ }
+
+ });
+
+})(jQuery,this);
+
+/*!
+ * 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,
+
+ // 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 = $('<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,
+ domain = $.fn[ str_hashchange ].domain;
+
+ if ( hash !== history_hash ) {
+ // Update Iframe with any initial `document.title` that might be set.
+ iframe_doc.title = doc.title;
+
+ // Opening the Iframe's document after it has been closed is what
+ // actually adds a history entry.
+ iframe_doc.open();
+
+ // Set document.domain for the Iframe document as well, if necessary.
+ domain && iframe_doc.write( '<script>document.domain="' + domain + '"</script>' );
+
+ iframe_doc.close();
+
+ // Update the Iframe's hash, for great justice.
+ iframe.location.hash = hash;
+ }
+ };
+
+ })();
+ // ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+ // ^^^^^^^^^^^^^^^^^^^ REMOVE IF NOT SUPPORTING IE6/7/8 ^^^^^^^^^^^^^^^^^^^
+ // ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+ return self;
+ })();
+
+})(jQuery,this);
projects / mkdru-moved-to-drupal.org.git / commitdiff