forked from mirrors/gecko-dev
289 lines
10 KiB
JavaScript
289 lines
10 KiB
JavaScript
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is the Feed Subscribe Handler.
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*
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* The Initial Developer of the Original Code is Google Inc.
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* Portions created by the Initial Developer are Copyright (C) 2006
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Ben Goodger <beng@google.com>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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const Cc = Components.classes;
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const Ci = Components.interfaces;
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const Cr = Components.results;
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const XUL_NS = "http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul";
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const TYPE_MAYBE_FEED = "application/vnd.mozilla.maybe.feed";
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const URI_BUNDLE = "chrome://browser/content/feeds/subscribe.properties";
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const PREF_SELECTED_APP = "browser.feeds.handlers.application";
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const PREF_SELECTED_WEB = "browser.feeds.handlers.webservice";
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const PREF_SELECTED_HANDLER = "browser.feeds.handler";
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const PREF_SKIP_PREVIEW_PAGE = "browser.feeds.skip_preview_page";
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function LOG(str) {
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dump("*** " + str + "\n");
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}
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var SubscribeHandler = {
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_getPropertyAsBag: function FH__getPropertyAsBag(container, property) {
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return container.fields.getProperty(property).
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QueryInterface(Ci.nsIPropertyBag2);
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},
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_getPropertyAsString: function FH__getPropertyAsString(container, property) {
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try {
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return container.fields.getPropertyAsAString(property);
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}
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catch (e) {
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}
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return "";
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},
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_setContentText: function SH__setContentText(id, text) {
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var element = document.getElementById(id);
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while (element.hasChildNodes())
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element.removeChild(element.firstChild);
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element.appendChild(document.createTextNode(text));
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},
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get _bundle() {
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var sbs =
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Cc["@mozilla.org/intl/stringbundle;1"].
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getService(Ci.nsIStringBundleService);
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return sbs.createBundle(URI_BUNDLE);
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},
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_getFormattedString: function SH__getFormattedString(key, params) {
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return this._bundle.formatStringFromName(key, params, params.length);
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},
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_getString: function SH__getString(key) {
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return this._bundle.GetStringFromName(key);
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},
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init: function SH_init() {
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LOG("window.location.href = " + window.location.href);
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var feedService =
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Cc["@mozilla.org/browser/feeds/result-service;1"].
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getService(Ci.nsIFeedResultService);
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var ios =
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Cc["@mozilla.org/network/io-service;1"].
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getService(Ci.nsIIOService);
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var feedURI = ios.newURI(window.location.href, null, null);
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try {
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var result = feedService.getFeedResult(feedURI);
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}
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catch (e) {
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LOG("feed not available?!");
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}
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if (result.bozo) {
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LOG("feed result is bozo?!");
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}
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// Set up the displayed handler
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this._initSelectedHandler();
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var prefs =
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Cc["@mozilla.org/preferences-service;1"].
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getService(Ci.nsIPrefBranch2);
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prefs.addObserver(PREF_SELECTED_HANDLER, this, false);
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prefs.addObserver(PREF_SELECTED_APP, this, false);
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var container = result.doc;
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this._setContentText("feedTitleText", container.title);
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this._setContentText("feedSubtitleText",
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this._getPropertyAsString(container, "description"));
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document.title = container.title;
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try {
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var parts = this._getPropertyAsBag(container, "image");
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// Set up the title image (supplied by the feed)
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var feedTitleImage = document.getElementById("feedTitleImage");
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feedTitleImage.setAttribute("src", parts.getPropertyAsAString("url"));
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// Set up the title image link
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var feedTitleLink = document.getElementById("feedTitleLink");
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var titleText =
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this._getFormattedString("linkTitleTextFormat",
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[parts.getPropertyAsAString("title")]);
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feedTitleLink.setAttribute("title", titleText);
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feedTitleLink.setAttribute("href", parts.getPropertyAsAString("link"));
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// Fix the margin on the main title, so that the image doesn't run over
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// the underline
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var feedTitleText = document.getElementById("feedTitleText");
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var titleImageWidth = parseInt(parts.getPropertyAsAString("width")) + 15;
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feedTitleText.style.marginRight = titleImageWidth + "px";
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}
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catch (e) {
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LOG("E: " + e);
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}
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// Build the actual feed content
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var feedContent = document.getElementById("feedContent");
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var feed = container.QueryInterface(Ci.nsIFeed);
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for (var i = 0; i < feed.items.length; ++i) {
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var entry = feed.items.queryElementAt(i, Ci.nsIFeedEntry);
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var title = document.createElementNS(XUL_NS, "label");
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title.value = entry.summary(true, 100);
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title.className = "feedEntryTitle";
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var body = document.createElementNS(XUL_NS, "description");
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body.appendChild(document.createTextNode(entry.content(true)));
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body.className = "feedEntryContent";
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feedContent.appendChild(title);
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feedContent.appendChild(body);
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}
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},
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uninit: function SH_uninit() {
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var prefs =
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Cc["@mozilla.org/preferences-service;1"].
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getService(Ci.nsIPrefBranch2);
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prefs.removeObserver(PREF_SELECTED_HANDLER, this);
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prefs.removeObserver(PREF_SELECTED_APP, this);
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},
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_getFileDisplayName: function SH__getFileDisplayName(file) {
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#ifdef XP_WIN
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if (file instanceof Ci.nsILocalFileWin) {
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try {
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return file.getVersionInfoField("FileDescription");
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}
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catch (e) {
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}
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}
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#endif
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var ios =
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Cc["@mozilla.org/network/io-service;1"].
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getService(Ci.nsIIOService);
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var url = ios.newFileURI(file).QueryInterface(Ci.nsIURL);
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return url.fileName;
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},
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_initSelectedHandler: function SH__initSelectedHandler() {
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var prefs =
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Cc["@mozilla.org/preferences-service;1"].
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getService(Ci.nsIPrefBranch);
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var chosen =
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document.getElementById("feedSubscribeLineHandlerChosen");
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var unchosen =
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document.getElementById("feedSubscribeLineHandlerUnchosen");
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var ios =
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Cc["@mozilla.org/network/io-service;1"].
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getService(Ci.nsIIOService);
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try {
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var iconURI = "chrome://browser/skin/places/livemarkItem.png";
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var handler = prefs.getCharPref(PREF_SELECTED_HANDLER);
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switch (handler) {
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case "client":
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var selectedApp =
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prefs.getComplexValue(PREF_SELECTED_APP, Ci.nsILocalFile);
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var displayName = this._getFileDisplayName(selectedApp);
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this._setContentText("feedSubscribeHandleText", displayName);
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var url = ios.newFileURI(selectedApp).QueryInterface(Ci.nsIURL);
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iconURI = "moz-icon://" + url.spec;
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break;
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case "web":
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var webURI = prefs.getCharPref(PREF_SELECTED_WEB);
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var wccr =
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Cc["@mozilla.org/web-content-handler-registrar;1"].
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getService(Ci.nsIWebContentConverterRegistrar);
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var title ="Unknown";
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var handler =
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wccr.getWebContentHandlerByURI(TYPE_MAYBE_FEED, webURI);
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if (handler)
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title = handler.name;
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var uri = ios.newURI(webURI, null, null);
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iconURI = uri.prePath + "/favicon.ico";
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this._setContentText("feedSubscribeHandleText", title);
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break;
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case "bookmarks":
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this._setContentText("feedSubscribeHandleText",
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this._getString("liveBookmarks"));
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break;
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}
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unchosen.setAttribute("hidden", "true");
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chosen.removeAttribute("hidden");
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var displayArea =
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document.getElementById("feedSubscribeHandleText");
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displayArea.style.setProperty("background-image",
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"url(\"" + iconURI + "\")", "");
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}
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catch (e) {
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LOG("EEEE: " + e);
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// No selected handlers yet! Make the user choose...
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chosen.setAttribute("hidden", "true");
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unchosen.removeAttribute("hidden");
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document.getElementById("feedHeader").setAttribute("firstrun", "true");
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}
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},
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observe: function SH_observe(subject, topic, data) {
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if (topic == "nsPref:changed")
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this._initSelectedHandler();
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},
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changeOptions: function SH_changeOptions() {
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openDialog("chrome://browser/content/feeds/options.xul", "", "modal,centerscreen");
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},
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subscribe: function FH_subscribe() {
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var prefs =
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Cc["@mozilla.org/preferences-service;1"].
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getService(Ci.nsIPrefBranch);
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var handler = prefs.getCharPref(PREF_SELECTED_HANDLER);
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if (handler == "web") {
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var webURI = prefs.getCharPref(PREF_SELECTED_WEB);
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var wccr =
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Cc["@mozilla.org/web-content-handler-registrar;1"].
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getService(Ci.nsIWebContentConverterRegistrar);
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var handler =
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wccr.getWebContentHandlerByURI(TYPE_MAYBE_FEED, webURI);
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window.location.href = handler.getHandlerURI(window.location.href);
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}
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else {
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var feedService =
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Cc["@mozilla.org/browser/feeds/result-service;1"].
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getService(Ci.nsIFeedResultService);
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feedService.addToClientReader(window.location.href);
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}
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},
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};
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#include ../../../../toolkit/content/debug.js
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