needed for ywidget

git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@4815 6c8d7289-2bf4-0310-a012-ef5d649a1542

htroot/yacy/ui/js/jquery.jfeed.js

@@ -0,0 +1,144 @@
+/* jFeed : jQuery feed parser plugin
+ * Copyright (C) 2007 Jean-François Hovinne - http://www.hovinne.com/
+ * Dual licensed under the MIT (MIT-license.txt)
+ * and GPL (GPL-license.txt) licenses.
+ */
+
+jQuery.getFeed = function(options) {
+
+    options = jQuery.extend({
+    
+        url: null,
+        data: null,
+        success: null
+        
+    }, options);
+
+    if(options.url) {
+
+        $.ajax({
+            type: 'GET',
+            url: options.url,
+            data: options.data,
+            dataType: 'xml',
+            success: function(xml) {
+                var feed = new JFeed(xml);
+                if(jQuery.isFunction(options.success)) options.success(feed);
+            }
+        });
+    }
+};
+
+function JFeed(xml) {
+    if(xml) this.parse(xml);
+};
+
+JFeed.prototype = {
+
+    type: '',
+    version: '',
+    title: '',
+    link: '',
+    description: '',
+    parse: function(xml) {
+        
+        if(jQuery('channel', xml).length == 1) {
+        
+            this.type = 'rss';
+            var feedClass = new JRss(xml);
+
+        } else if(jQuery('feed', xml).length == 1) {
+        
+            this.type = 'atom';
+            var feedClass = new JAtom(xml);
+        }
+        
+        if(feedClass) jQuery.extend(this, feedClass);
+    }
+};
+
+function JFeedItem() {};
+
+JFeedItem.prototype = {
+
+    title: '',
+    link: '',
+    description: '',
+    updated: '',
+    id: ''
+};
+
+function JAtom(xml) {
+    this._parse(xml);
+};
+
+JAtom.prototype = {
+    
+    _parse: function(xml) {
+    
+        var channel = jQuery('feed', xml).eq(0);
+
+        this.version = '1.0';
+        this.title = jQuery(channel).find('title:first').text();
+        this.link = jQuery(channel).find('link:first').attr('href');
+        this.description = jQuery(channel).find('subtitle:first').text();
+        this.language = jQuery(channel).attr('xml:lang');
+        this.updated = jQuery(channel).find('updated:first').text();
+        
+        this.items = new Array();
+        
+        var feed = this;
+        
+        jQuery('entry', xml).each( function() {
+        
+            var item = new JFeedItem();
+            
+            item.title = jQuery(this).find('title').eq(0).text();
+            item.link = jQuery(this).find('link').eq(0).attr('href');
+            item.description = jQuery(this).find('content').eq(0).text();
+            item.updated = jQuery(this).find('updated').eq(0).text();
+            item.id = jQuery(this).find('id').eq(0).text();
+            
+            feed.items.push(item);
+        });
+    }
+};
+
+function JRss(xml) {
+    this._parse(xml);
+};
+
+JRss.prototype  = {
+    
+    _parse: function(xml) {
+    
+        if(jQuery('rss', xml).length == 0) this.version = '1.0';
+        else this.version = jQuery('rss', xml).eq(0).attr('version');
+
+        var channel = jQuery('channel', xml).eq(0);
+    
+        this.title = jQuery(channel).find('title:first').text();
+        this.link = jQuery(channel).find('link:first').text();
+        this.description = jQuery(channel).find('description:first').text();
+        this.language = jQuery(channel).find('language:first').text();
+        this.updated = jQuery(channel).find('lastBuildDate:first').text();
+    
+        this.items = new Array();
+        
+        var feed = this;
+        
+        jQuery('item', xml).each( function() {
+        
+            var item = new JFeedItem();
+            
+            item.title = jQuery(this).find('title').eq(0).text();
+            item.link = jQuery(this).find('link').eq(0).text();
+            item.description = jQuery(this).find('description').eq(0).text();
+            item.updated = jQuery(this).find('pubDate').eq(0).text();
+            item.id = jQuery(this).find('guid').eq(0).text();
+            
+            feed.items.push(item);
+        });
+    }
+};
+