mirror of
https://github.com/classilla/tenfourfox.git
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121 lines
3.6 KiB
JavaScript
121 lines
3.6 KiB
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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"use strict";
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var FeedHandler = {
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PREF_CONTENTHANDLERS_BRANCH: "browser.contentHandlers.types.",
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TYPE_MAYBE_FEED: "application/vnd.mozilla.maybe.feed",
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_contentTypes: null,
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getContentHandlers: function fh_getContentHandlers(contentType) {
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if (!this._contentTypes)
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this.loadContentHandlers();
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if (!(contentType in this._contentTypes))
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return [];
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return this._contentTypes[contentType];
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},
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loadContentHandlers: function fh_loadContentHandlers() {
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this._contentTypes = {};
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let kids = Services.prefs.getBranch(this.PREF_CONTENTHANDLERS_BRANCH).getChildList("");
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// First get the numbers of the providers by getting all ###.uri prefs
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let nums = [];
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for (let i = 0; i < kids.length; i++) {
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let match = /^(\d+)\.uri$/.exec(kids[i]);
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if (!match)
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continue;
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else
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nums.push(match[1]);
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}
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// Sort them, to get them back in order
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nums.sort(function(a, b) { return a - b; });
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// Now register them
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for (let i = 0; i < nums.length; i++) {
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let branch = Services.prefs.getBranch(this.PREF_CONTENTHANDLERS_BRANCH + nums[i] + ".");
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let vals = branch.getChildList("");
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if (vals.length == 0)
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return;
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try {
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let type = branch.getCharPref("type");
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let uri = branch.getComplexValue("uri", Ci.nsIPrefLocalizedString).data;
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let title = branch.getComplexValue("title", Ci.nsIPrefLocalizedString).data;
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if (!(type in this._contentTypes))
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this._contentTypes[type] = [];
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this._contentTypes[type].push({ contentType: type, uri: uri, name: title });
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}
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catch(ex) {}
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}
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},
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observe: function fh_observe(aSubject, aTopic, aData) {
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if (aTopic === "Feeds:Subscribe") {
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let args = JSON.parse(aData);
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let tab = BrowserApp.getTabForId(args.tabId);
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if (!tab)
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return;
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let browser = tab.browser;
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let feeds = browser.feeds;
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if (feeds == null)
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return;
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// First, let's decide on which feed to subscribe
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let feedIndex = -1;
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if (feeds.length > 1) {
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let p = new Prompt({
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window: browser.contentWindow,
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title: Strings.browser.GetStringFromName("feedHandler.chooseFeed")
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}).setSingleChoiceItems(feeds.map(function(feed) {
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return { label: feed.title || feed.href }
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})).show((function(data) {
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feedIndex = data.button;
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if (feedIndex == -1)
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return;
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this.loadFeed(feeds[feedIndex], browser);
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}).bind(this));
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return;
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}
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this.loadFeed(feeds[0], browser);
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}
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},
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loadFeed: function fh_loadFeed(aFeed, aBrowser) {
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let feedURL = aFeed.href;
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// Next, we decide on which service to send the feed
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let handlers = this.getContentHandlers(this.TYPE_MAYBE_FEED);
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if (handlers.length == 0)
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return;
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// JSON for Prompt
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let p = new Prompt({
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window: aBrowser.contentWindow,
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title: Strings.browser.GetStringFromName("feedHandler.subscribeWith")
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}).setSingleChoiceItems(handlers.map(function(handler) {
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return { label: handler.name };
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})).show(function(data) {
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if (data.button == -1)
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return;
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// Merge the handler URL and the feed URL
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let readerURL = handlers[data.button].uri;
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readerURL = readerURL.replace(/%s/gi, encodeURIComponent(feedURL));
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// Open the resultant URL in a new tab
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BrowserApp.addTab(readerURL, { parentId: BrowserApp.selectedTab.id });
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});
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}
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};
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