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Diffstat (limited to 'js/jquery.metadata.js')
| -rw-r--r-- | js/jquery.metadata.js | 147 |
1 files changed, 0 insertions, 147 deletions
diff --git a/js/jquery.metadata.js b/js/jquery.metadata.js deleted file mode 100644 index 6ace78f..0000000 --- a/js/jquery.metadata.js +++ /dev/null @@ -1,147 +0,0 @@ -/* - * 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 - * - * - */ - -/** - * 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 four 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. - * html5: Values are stored in data-* attributes. - * - * 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 - * - * @example <p id="one" class="some_class" data-item_id="1" data-item_label="Label">This is a p</p> - * @before $.metadata.setType("html5") - * @after $("#one").metadata().item_id == 1; $("#one").metadata().item_label == "Label" - * @desc Reads metadata from a series of data-* attributes - * - * @param String type The encoding type - * @param String name The name of the attribute to be used to get metadata (optional) - * @cat Plugins/Metadata - * @descr Sets the type of encoding to be used when loading metadata for the first time - * @type undefined - * @see metadata() - */ - -(function($) { - -$.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 = "{}"; - - var getData = function(data) { - if(typeof data != "string") return data; - - if( data.indexOf('{') < 0 ) { - data = eval("(" + data + ")"); - } - } - - var getObject = function(data) { - if(typeof data != "string") return data; - - data = eval("(" + data + ")"); - return data; - } - - if ( settings.type == "html5" ) { - var object = {}; - $( elem.attributes ).each(function() { - var name = this.nodeName; - if(name.match(/^data-/)) name = name.replace(/^data-/, ''); - else return true; - object[name] = getObject(this.nodeValue); - }); - } else { - 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; - 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; - } - object = getObject(data.indexOf("{") < 0 ? "{" + data + "}" : data); - } - - $.data( elem, settings.single, object ); - return object; - } - } -}); - -/** - * Returns the metadata object for the first member of the jQuery object. - * - * @name metadata - * @descr Returns element's metadata object - * @param Object opts An object contianing settings to override the defaults - * @type jQuery - * @cat Plugins/Metadata - */ -$.fn.metadata = function( opts ){ - return $.metadata.get( this[0], opts ); -}; - -})(jQuery);
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