michael@0: /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: XPCOMUtils.defineLazyModuleGetter(this, "Feeds",
michael@0:   "resource:///modules/Feeds.jsm");
michael@0: 
michael@0: function initFeedTab()
michael@0: {
michael@0:   const feedTypes = {
michael@0:     "application/rss+xml": gBundle.getString("feedRss"),
michael@0:     "application/atom+xml": gBundle.getString("feedAtom"),
michael@0:     "text/xml": gBundle.getString("feedXML"),
michael@0:     "application/xml": gBundle.getString("feedXML"),
michael@0:     "application/rdf+xml": gBundle.getString("feedXML")
michael@0:   };
michael@0: 
michael@0:   // get the feeds
michael@0:   var linkNodes = gDocument.getElementsByTagName("link");
michael@0:   var length = linkNodes.length;
michael@0:   for (var i = 0; i < length; i++) {
michael@0:     var link = linkNodes[i];
michael@0:     if (!link.href)
michael@0:       continue;
michael@0: 
michael@0:     var rel = link.rel && link.rel.toLowerCase();
michael@0:     var rels = {};
michael@0:     if (rel) {
michael@0:       for each (let relVal in rel.split(/\s+/))
michael@0:         rels[relVal] = true;
michael@0:     }
michael@0: 
michael@0:     if (rels.feed || (link.type && rels.alternate && !rels.stylesheet)) {
michael@0:       var type = Feeds.isValidFeed(link, gDocument.nodePrincipal, "feed" in rels);
michael@0:       if (type) {
michael@0:         type = feedTypes[type] || feedTypes["application/rss+xml"];
michael@0:         addRow(link.title, type, link.href);
michael@0:       }
michael@0:     }
michael@0:   }
michael@0: 
michael@0:   var feedListbox = document.getElementById("feedListbox");
michael@0:   document.getElementById("feedTab").hidden = feedListbox.getRowCount() == 0;
michael@0: }
michael@0: 
michael@0: function onSubscribeFeed()
michael@0: {
michael@0:   var listbox = document.getElementById("feedListbox");
michael@0:   openUILinkIn(listbox.selectedItem.getAttribute("feedURL"), "current",
michael@0:                { ignoreAlt: true });
michael@0: }
michael@0: 
michael@0: function addRow(name, type, url)
michael@0: {
michael@0:   var item = document.createElement("richlistitem");
michael@0:   item.setAttribute("feed", "true");
michael@0:   item.setAttribute("name", name);
michael@0:   item.setAttribute("type", type);
michael@0:   item.setAttribute("feedURL", url);
michael@0:   document.getElementById("feedListbox").appendChild(item);
michael@0: }