+++ /dev/null
-/*
- * Metadata - jQuery plugin for parsing metadata from elements
- *
- * Copyright (c) 2006 John Resig, Yehuda Katz, J�örn Zaefferer, Paul McLanahan
- *
- * Dual licensed under the MIT and GPL licenses:
- * http://www.opensource.org/licenses/mit-license.php
- * http://www.gnu.org/licenses/gpl.html
- *
- * Revision: $Id: jquery.metadata.js 4187 2007-12-16 17:15:27Z joern.zaefferer $
- *
- */
-
-/**
- * Sets the type of metadata to use. Metadata is encoded in JSON, and each property
- * in the JSON will become a property of the element itself.
- *
- * There are three supported types of metadata storage:
- *
- * attr: Inside an attribute. The name parameter indicates *which* attribute.
- *
- * class: Inside the class attribute, wrapped in curly braces: { }
- *
- * elem: Inside a child element (e.g. a script tag). The
- * name parameter indicates *which* element.
- *
- * The metadata for an element is loaded the first time the element is accessed via jQuery.
- *
- * As a result, you can define the metadata type, use $(expr) to load the metadata into the elements
- * matched by expr, then redefine the metadata type and run another $(expr) for other elements.
- *
- * @name $.metadata.setType
- *
- * @example <p id="one" class="some_class {item_id: 1, item_label: 'Label'}">This is a p</p>
- * @before $.metadata.setType("class")
- * @after $("#one").metadata().item_id == 1; $("#one").metadata().item_label == "Label"
- * @desc Reads metadata from the class attribute
- *
- * @example <p id="one" class="some_class" data="{item_id: 1, item_label: 'Label'}">This is a p</p>
- * @before $.metadata.setType("attr", "data")
- * @after $("#one").metadata().item_id == 1; $("#one").metadata().item_label == "Label"
- * @desc Reads metadata from a "data" attribute
- *
- * @example <p id="one" class="some_class"><script>{item_id: 1, item_label: 'Label'}</script>This is a p</p>
- * @before $.metadata.setType("elem", "script")
- * @after $("#one").metadata().item_id == 1; $("#one").metadata().item_label == "Label"
- * @desc Reads metadata from a nested script element
- *
- * @param String type The encoding type
- * @param String name The name of the attribute to be used to get metadata (optional)
- * @cat Plugins/Metadata
- * @descr Sets the type of encoding to be used when loading metadata for the first time
- * @type undefined
- * @see metadata()
- */
-
-(function($) {
-
-$.extend({
- metadata : {
- defaults : {
- type: 'class',
- name: 'metadata',
- cre: /({.*})/,
- single: 'metadata'
- },
- setType: function( type, name ){
- this.defaults.type = type;
- this.defaults.name = name;
- },
- get: function( elem, opts ){
- var settings = $.extend({},this.defaults,opts);
- // check for empty string in single property
- if ( !settings.single.length ) settings.single = 'metadata';
-
- var data = $.data(elem, settings.single);
- // returned cached data if it already exists
- if ( data ) return data;
-
- data = "{}";
-
- if ( settings.type == "class" ) {
- var m = settings.cre.exec( elem.className );
- if ( m )
- data = m[1];
- } else if ( settings.type == "elem" ) {
- if( !elem.getElementsByTagName )
- return undefined;
- var e = elem.getElementsByTagName(settings.name);
- if ( e.length )
- data = $.trim(e[0].innerHTML);
- } else if ( elem.getAttribute != undefined ) {
- var attr = elem.getAttribute( settings.name );
- if ( attr )
- data = attr;
- }
-
- if ( data.indexOf( '{' ) <0 )
- data = "{" + data + "}";
-
- data = eval("(" + data + ")");
-
- $.data( elem, settings.single, data );
- return data;
- }
- }
-});
-
-/**
- * Returns the metadata object for the first member of the jQuery object.
- *
- * @name metadata
- * @descr Returns element's metadata object
- * @param Object opts An object contianing settings to override the defaults
- * @type jQuery
- * @cat Plugins/Metadata
- */
-$.fn.metadata = function( opts ){
- return $.metadata.get( this[0], opts );
-};
-
-})(jQuery);
\ No newline at end of file