951 lines
32 KiB
JavaScript
Executable File
951 lines
32 KiB
JavaScript
Executable File
# -*- 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 Writer.
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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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# Jeff Walden <jwalden+code@mit.edu>
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# Asaf Romano <mozilla.mano@sent.com>
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# Robert Sayre <sayrer@gmail.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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function LOG(str) {
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var prefB =
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Cc["@mozilla.org/preferences-service;1"].
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getService(Ci.nsIPrefBranch);
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var shouldLog = false;
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try {
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shouldLog = prefB.getBoolPref("feeds.log");
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}
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catch (ex) {
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}
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if (shouldLog)
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dump("*** Feeds: " + str + "\n");
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}
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const XML_NS = "http://www.w3.org/XML/1998/namespace"
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const HTML_NS = "http://www.w3.org/1999/xhtml";
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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/locale/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_ACTION = "browser.feeds.handler";
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const PREF_SELECTED_READER = "browser.feeds.handler.default";
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const PREF_SHOW_FIRST_RUN_UI = "browser.feeds.showFirstRunUI";
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const FW_CLASSID = Components.ID("{49bb6593-3aff-4eb3-a068-2712c28bd58e}");
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const FW_CLASSNAME = "Feed Writer";
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const FW_CONTRACTID = "@mozilla.org/browser/feeds/result-writer;1";
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const TITLE_ID = "feedTitleText";
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const SUBTITLE_ID = "feedSubtitleText";
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function FeedWriter() {
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}
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FeedWriter.prototype = {
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_getPropertyAsBag: function FW__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 FW__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 FW__setContentText(id, text) {
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var element = this._document.getElementById(id);
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while (element.hasChildNodes())
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element.removeChild(element.firstChild);
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element.appendChild(this._document.createTextNode(text));
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},
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/**
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* Safely sets the href attribute on an anchor tag, providing the URI
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* specified can be loaded according to rules.
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* @param element
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* The element to set a URI attribute on
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* @param attribute
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* The attribute of the element to set the URI to, e.g. href or src
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* @param uri
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* The URI spec to set as the href
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*/
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_safeSetURIAttribute:
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function FW__safeSetURIAttribute(element, attribute, uri) {
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var secman =
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Cc["@mozilla.org/scriptsecuritymanager;1"].
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getService(Ci.nsIScriptSecurityManager);
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const flags = Ci.nsIScriptSecurityManager.DISALLOW_SCRIPT_OR_DATA;
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try {
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secman.checkLoadURIStr(this._window.location.href, uri, flags);
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// checkLoadURIStr will throw if the link URI should not be loaded per
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// the rules specified in |flags|, so we'll never "linkify" the link...
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element.setAttribute(attribute, uri);
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}
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catch (e) {
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// Not allowed to load this link because secman.checkLoadURIStr threw
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}
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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 FW__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 FW__getString(key) {
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return this._bundle.GetStringFromName(key);
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},
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/**
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* Writes the feed title into the preview document.
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* @param container
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* The feed container
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*/
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_setTitleText: function FW__setTitleText(container) {
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if (container.title) {
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this._setContentText(TITLE_ID, container.title.plainText());
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this._document.title = container.title.plainText();
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}
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var feed = container.QueryInterface(Ci.nsIFeed);
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if (feed && feed.subtitle)
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this._setContentText(SUBTITLE_ID, container.subtitle.plainText());
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},
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/**
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* Writes the title image into the preview document if one is present.
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* @param container
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* The feed container
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*/
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_setTitleImage: function FW__setTitleImage(container) {
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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 = this._document.getElementById("feedTitleImage");
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this._safeSetURIAttribute(feedTitleImage, "src",
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parts.getPropertyAsAString("url"));
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// Set up the title image link
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var feedTitleLink = this._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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this._safeSetURIAttribute(feedTitleLink, "href",
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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 = this._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("Failed to set Title Image (this is benign): " + e);
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}
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},
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/**
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* Writes all entries contained in the feed.
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* @param container
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* The container of entries in the feed
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*/
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_writeFeedContent: function FW__writeFeedContent(container) {
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// Build the actual feed content
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var feedContent = this._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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entry.QueryInterface(Ci.nsIFeedContainer);
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var entryContainer = this._document.createElementNS(HTML_NS, "div");
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entryContainer.className = "entry";
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// If the entry has a title, make it a like
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if (entry.title) {
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var a = this._document.createElementNS(HTML_NS, "a");
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a.appendChild(this._document.createTextNode(entry.title.plainText()));
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// Entries are not required to have links, so entry.link can be null.
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if (entry.link)
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this._safeSetURIAttribute(a, "href", entry.link.spec);
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var title = this._document.createElementNS(HTML_NS, "h3");
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title.appendChild(a);
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entryContainer.appendChild(title);
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}
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var body = this._document.createElementNS(HTML_NS, "p");
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var summary = entry.summary || entry.content;
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var docFragment = null;
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if (summary) {
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if (summary.base)
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body.setAttributeNS(XML_NS, "base", summary.base.spec);
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else
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LOG("no base?");
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docFragment = summary.createDocumentFragment(body);
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body.appendChild(docFragment);
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// If the entry doesn't have a title, append a # permalink
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// See http://scripting.com/rss.xml for an example
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if (!entry.title && entry.link) {
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var a = this._document.createElementNS(HTML_NS, "a");
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a.appendChild(this._document.createTextNode("#"));
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this._safeSetURIAttribute(a, "href", entry.link.spec);
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body.appendChild(this._document.createTextNode(" "));
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body.appendChild(a);
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}
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}
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body.className = "feedEntryContent";
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entryContainer.appendChild(body);
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feedContent.appendChild(entryContainer);
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}
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},
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/**
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* Gets a valid nsIFeedContainer object from the parsed nsIFeedResult.
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* Displays error information if there was one.
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* @param result
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* The parsed feed result
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* @returns A valid nsIFeedContainer object containing the contents of
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* the feed.
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*/
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_getContainer: function FW__getContainer(result) {
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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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try {
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var result =
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feedService.getFeedResult(this._getOriginalURI(this._window));
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}
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catch (e) {
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LOG("Subscribe Preview: feed not available?!");
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}
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if (result.bozo) {
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LOG("Subscribe Preview: feed result is bozo?!");
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}
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try {
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var container = result.doc;
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container.title;
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}
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catch (e) {
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LOG("Subscribe Preview: An error occurred in parsing! Fortunately, you can still subscribe...");
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var feedError = this._document.getElementById("feedError");
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feedError.removeAttribute("style");
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var feedBody = this._document.getElementById("feedBody");
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feedBody.setAttribute("style", "display:none;");
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this._setContentText("errorCode", e);
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return null;
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}
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return container;
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},
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/**
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* Get the human-readable display name of a file. This could be the
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* application name.
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* @param file
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* A nsIFile to look up the name of
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* @returns The display name of the application represented by the file.
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*/
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_getFileDisplayName: function FW__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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#ifdef XP_MACOSX
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var lfm = file.QueryInterface(Components.interfaces.nsILocalFileMac_MOZILLA_1_8_BRANCH);
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try {
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return lfm.bundleDisplayName;
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}
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catch (e) {
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// fall through to the file name
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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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/**
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* Get moz-icon url for a file
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* @param file
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* A nsIFile object for which the moz-icon:// is returned
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* @returns moz-icon url of the given file as a string
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*/
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_getFileIconURL: function FW__getFileIconURL(file) {
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var ios = Cc["@mozilla.org/network/io-service;1"].
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getService(Components.interfaces.nsIIOService);
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var fph = ios.getProtocolHandler("file")
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.QueryInterface(Ci.nsIFileProtocolHandler);
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var urlSpec = fph.getURLSpecFromFile(file);
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return "moz-icon://" + urlSpec + "?size=16";
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},
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/**
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* Helper method to set the selected application and system default
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* reader menuitems details from a file object
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* @param aMenuItem
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* The menuitem on which the attributes should be set
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* @param aFile
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* The menuitem's associated file
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*/
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_initMenuItemWithFile: function(aMenuItem, aFile) {
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aMenuItem.setAttribute("label", this._getFileDisplayName(aFile));
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aMenuItem.setAttribute("image", this._getFileIconURL(aFile));
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aMenuItem.wrappedJSObject.file = aFile;
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},
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/**
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* Displays a prompt from which the user may choose a (client) feed reader.
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* @return - true if a feed reader was selected, false otherwise.
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*/
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_chooseClientApp: function FW__chooseClientApp() {
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try {
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var fp = Cc["@mozilla.org/filepicker;1"].createInstance(Ci.nsIFilePicker);
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fp.init(this._window,
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this._getString("chooseApplicationDialogTitle"),
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Ci.nsIFilePicker.modeOpen);
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fp.appendFilters(Ci.nsIFilePicker.filterApps);
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if (fp.show() == Ci.nsIFilePicker.returnOK) {
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var selectedApp = fp.file;
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if (selectedApp) {
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// XXXben - we need to compare this with the running instance executable
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// just don't know how to do that via script...
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// XXXmano TBD: can probably add this to nsIShellService
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#ifdef XP_WIN
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if (fp.file.leafName != "firefox.exe") {
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#else
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#ifdef XP_MACOSX
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if (fp.file.leafName != "Firefox.app") {
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#else
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if (fp.file.leafName != "firefox-bin") {
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#endif
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#endif
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var selectedAppMenuItem =
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this._document.getElementById("selectedAppMenuItem");
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this._initMenuItemWithFile(selectedAppMenuItem, selectedApp);
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// Show and select the selected application menuitem
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selectedAppMenuItem.wrappedJSObject.hidden = false;
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selectedAppMenuItem.doCommand();
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return true;
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}
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}
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}
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}
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catch(ex) { }
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return false;
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},
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_setAlwaysUseCheckedState: function FW__setAlwaysUseCheckedState() {
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var checkbox = this._document.getElementById("alwaysUse");
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if (checkbox) {
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var alwaysUse = false;
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try {
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var prefs = Cc["@mozilla.org/preferences-service;1"].
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getService(Ci.nsIPrefBranch);
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if (prefs.getCharPref(PREF_SELECTED_ACTION) != "ask")
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alwaysUse = true;
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}
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catch(ex) { }
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checkbox.wrappedJSObject.checked = alwaysUse;
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}
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},
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_setAlwaysUseLabel: function FW__setAlwaysUseLabel() {
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var checkbox = this._document.getElementById("alwaysUse");
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if (checkbox) {
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var handlersMenuList = this._document.getElementById("handlersMenuList");
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if (handlersMenuList) {
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var handlerName = handlersMenuList.wrappedJSObject.selectedItem.getAttribute("label");
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checkbox.wrappedJSObject.label = this._getFormattedString("alwaysUse", [handlerName]);
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}
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}
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},
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/**
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* See nsIDOMEventListener
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*/
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handleEvent: function(event) {
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// see comments in the write method
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event = new XPCNativeWrapper(event);
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if (event.target.ownerDocument != this._document) {
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LOG("FeedWriter.handleEvent: Someone passed the feed writer as a listener to the events of another document!");
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return;
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}
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switch (event.type) {
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case "command" : {
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switch (event.target.id) {
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case "subscribeButton":
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this.subscribe();
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break;
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case "chooseApplicationMenuItem":
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// For keyboard-only users, we only show the file picker once the
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// subscribe button is pressed. See click event handling for the
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// mouse-case.
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break;
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default:
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this._setAlwaysUseLabel();
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}
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break;
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}
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case "click": {
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if (event.target.id == "chooseApplicationMenuItem") {
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if (!this._chooseClientApp()) {
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// Select the (per-prefs) selected handler if no application was
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// selected
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this._setSelectedHandler();
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}
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}
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}
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}
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},
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_setSelectedHandler: function FW__setSelectedHandler() {
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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 = "bookmarks";
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try {
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handler = prefs.getCharPref(PREF_SELECTED_READER);
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}
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catch (ex) { }
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switch (handler) {
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case "web": {
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var handlersMenuList = this._document.getElementById("handlersMenuList");
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if (handlersMenuList) {
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var url = prefs.getCharPref(PREF_SELECTED_WEB);
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var handlers =
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handlersMenuList.getElementsByAttribute("webhandlerurl", url);
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if (handlers.length == 0) {
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LOG("FeedWriter._setSelectedHandler: selected web handler isn't in the menulist")
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return;
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}
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handlers[0].doCommand();
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}
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break;
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}
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case "client": {
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var selectedAppMenuItem =
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this._document.getElementById("selectedAppMenuItem");
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if (selectedAppMenuItem) {
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try {
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var selectedApp = prefs.getComplexValue(PREF_SELECTED_APP,
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Ci.nsILocalFile);
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} catch(ex) { }
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if (selectedApp) {
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this._initMenuItemWithFile(selectedAppMenuItem, selectedApp);
|
|
selectedAppMenuItem.wrappedJSObject.hidden = false;
|
|
selectedAppMenuItem.doCommand();
|
|
|
|
#ifdef XP_WIN
|
|
// Only show the default reader menuitem if the default reader
|
|
// isn't the selected application
|
|
var defaultHandlerMenuItem =
|
|
this._document.getElementById("defaultHandlerMenuItem");
|
|
if (defaultHandlerMenuItem) {
|
|
defaultHandlerMenuItem.wrappedJSObject.hidden =
|
|
defaultHandlerMenuItem.wrappedJSObject.file.path == selectedApp.path;
|
|
}
|
|
#endif
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
case "bookmarks":
|
|
default: {
|
|
var liveBookmarksMenuItem =
|
|
this._document.getElementById("liveBookmarksMenuItem");
|
|
if (liveBookmarksMenuItem)
|
|
liveBookmarksMenuItem.doCommand();
|
|
}
|
|
}
|
|
},
|
|
|
|
_initSubscriptionUI: function FW__initSubscriptionUI() {
|
|
var handlersMenuPopup =
|
|
this._document.getElementById("handlersMenuPopup");
|
|
if (!handlersMenuPopup)
|
|
return;
|
|
|
|
// Last-selected application
|
|
var selectedApp;
|
|
menuItem = this._document.createElementNS(XUL_NS, "menuitem");
|
|
menuItem.id = "selectedAppMenuItem";
|
|
menuItem.className = "menuitem-iconic";
|
|
try {
|
|
var prefs = Cc["@mozilla.org/preferences-service;1"].
|
|
getService(Ci.nsIPrefBranch);
|
|
selectedApp = prefs.getComplexValue(PREF_SELECTED_APP,
|
|
Ci.nsILocalFile);
|
|
|
|
if (selectedApp.exists()) {
|
|
menuItem.setAttribute("handlerType", "client");
|
|
this._initMenuItemWithFile(menuItem, selectedApp);
|
|
}
|
|
else {
|
|
// Hide the menuitem if the last selected application doesn't exist
|
|
menuItem.setAttribute("hidden", "true");
|
|
}
|
|
}
|
|
catch(ex) {
|
|
// Hide the menuitem until an application is selected
|
|
menuItem.setAttribute("hidden", "true");
|
|
}
|
|
handlersMenuPopup.appendChild(menuItem);
|
|
|
|
#ifdef XP_WIN
|
|
// On Windows, also list the default feed reader
|
|
var defaultReader;
|
|
try {
|
|
const WRK = Ci.nsIWindowsRegKey;
|
|
var regKey =
|
|
Cc["@mozilla.org/windows-registry-key;1"].createInstance(WRK);
|
|
regKey.open(WRK.ROOT_KEY_CLASSES_ROOT,
|
|
"feed\\shell\\open\\command", WRK.ACCESS_READ);
|
|
var path = regKey.readStringValue("");
|
|
if (path.charAt(0) == "\"") {
|
|
// Everything inside the quotes
|
|
path = path.substr(1);
|
|
path = path.substr(0, path.indexOf("\""));
|
|
}
|
|
else {
|
|
// Everything up to the first space
|
|
path = path.substr(0, path.indexOf(" "));
|
|
}
|
|
|
|
defaultReader = Cc["@mozilla.org/file/local;1"].
|
|
createInstance(Ci.nsILocalFile);
|
|
defaultReader.initWithPath(path);
|
|
|
|
if (defaultReader.exists()) {
|
|
menuItem = this._document.createElementNS(XUL_NS, "menuitem");
|
|
menuItem.id = "defaultHandlerMenuItem";
|
|
menuItem.className = "menuitem-iconic";
|
|
menuItem.setAttribute("handlerType", "client");
|
|
this._initMenuItemWithFile(menuItem, defaultReader);
|
|
|
|
// Hide the default reader item if it points to the same application
|
|
// as the last-selected application
|
|
if (selectedApp && selectedApp.path == defaultReader.path)
|
|
menuItem.setAttribute("hidden", "true");
|
|
|
|
handlersMenuPopup.appendChild(menuItem);
|
|
}
|
|
}
|
|
catch (e) {
|
|
LOG("No feed handler registered on system");
|
|
}
|
|
#endif
|
|
|
|
// "Choose Application..." menuitem
|
|
menuItem = this._document.createElementNS(XUL_NS, "menuitem");
|
|
menuItem.id = "chooseApplicationMenuItem";
|
|
menuItem.setAttribute("label", this._getString("chooseApplicationMenuItem"));
|
|
menuItem.addEventListener("click", this, false);
|
|
handlersMenuPopup.appendChild(menuItem);
|
|
|
|
// separator
|
|
handlersMenuPopup.appendChild(this._document.createElementNS(XUL_NS,
|
|
"menuseparator"));
|
|
|
|
// List of web handlers
|
|
var wccr =
|
|
Cc["@mozilla.org/embeddor.implemented/web-content-handler-registrar;1"].
|
|
getService(Ci.nsIWebContentConverterService);
|
|
var handlers = wccr.getContentHandlers(TYPE_MAYBE_FEED, {});
|
|
if (handlers.length != 0) {
|
|
var ios = Cc["@mozilla.org/network/io-service;1"].
|
|
getService(Ci.nsIIOService);
|
|
for (var i = 0; i < handlers.length; ++i) {
|
|
menuItem = this._document.createElementNS(XUL_NS, "menuitem");
|
|
menuItem.className = "menuitem-iconic";
|
|
menuItem.setAttribute("label", handlers[i].name);
|
|
menuItem.setAttribute("handlerType", "web");
|
|
menuItem.setAttribute("webhandlerurl", handlers[i].uri);
|
|
|
|
var uri = ios.newURI(handlers[i].uri, null, null);
|
|
menuItem.setAttribute("image", uri.prePath + "/favicon.ico");
|
|
|
|
handlersMenuPopup.appendChild(menuItem);
|
|
}
|
|
}
|
|
|
|
this._setSelectedHandler();
|
|
|
|
// "Always use..." checkbox initial state
|
|
this._setAlwaysUseCheckedState();
|
|
this._setAlwaysUseLabel();
|
|
|
|
// We update the "Always use.." checkbox label whenever the selected item
|
|
// in the list is changed
|
|
handlersMenuPopup.addEventListener("command", this, false);
|
|
|
|
// Set up the "Subscribe Now" button
|
|
this._document
|
|
.getElementById("subscribeButton")
|
|
.addEventListener("command", this, false);
|
|
|
|
// first-run ui
|
|
var showFirstRunUI = true;
|
|
try {
|
|
showFirstRunUI = prefs.getBoolPref(PREF_SHOW_FIRST_RUN_UI);
|
|
}
|
|
catch (ex) { }
|
|
if (showFirstRunUI) {
|
|
var feedHeader = this._document.getElementById("feedHeader");
|
|
if (feedHeader)
|
|
feedHeader.setAttribute("firstrun", "true");
|
|
|
|
prefs.setBoolPref(PREF_SHOW_FIRST_RUN_UI, false);
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Returns the original URI object of the feed and ensures that this
|
|
* component is only ever invoked from the preview document.
|
|
* @param window
|
|
* The window of the document invoking the BrowserFeedWriter
|
|
*/
|
|
_getOriginalURI: function FW__getOriginalURI(window) {
|
|
var chan =
|
|
window.QueryInterface(Ci.nsIInterfaceRequestor).
|
|
getInterface(Ci.nsIWebNavigation).
|
|
QueryInterface(Ci.nsIDocShell).currentDocumentChannel;
|
|
|
|
const SUBSCRIBE_PAGE_URI = "chrome://browser/content/feeds/subscribe.xhtml";
|
|
var uri = Cc["@mozilla.org/network/io-service;1"].
|
|
getService(Ci.nsIIOService).
|
|
newURI(SUBSCRIBE_PAGE_URI, "", null)
|
|
var resolvedURI = Cc["@mozilla.org/chrome/chrome-registry;1"].
|
|
getService(Ci.nsIChromeRegistry).
|
|
convertChromeURL(uri);
|
|
|
|
if (resolvedURI.equals(chan.URI))
|
|
return chan.originalURI;
|
|
else
|
|
return null;
|
|
},
|
|
|
|
_window: null,
|
|
_document: null,
|
|
_feedURI: null,
|
|
|
|
/**
|
|
* See nsIFeedWriter
|
|
*/
|
|
write: function FW_write(window) {
|
|
// Explicitly wrap |window| in an XPCNativeWrapper to make sure
|
|
// it's a real native object! This will throw an exception if we
|
|
// get a non-native object.
|
|
window = new XPCNativeWrapper(window);
|
|
|
|
this._feedURI = this._getOriginalURI(window);
|
|
if (!this._feedURI)
|
|
return;
|
|
try {
|
|
this._window = window;
|
|
this._document = window.document;
|
|
|
|
LOG("Subscribe Preview: feed uri = " + this._window.location.href);
|
|
|
|
// Set up the subscription UI
|
|
this._initSubscriptionUI();
|
|
var prefs =
|
|
Cc["@mozilla.org/preferences-service;1"].
|
|
getService(Ci.nsIPrefBranch2);
|
|
prefs.addObserver(PREF_SELECTED_ACTION, this, false);
|
|
prefs.addObserver(PREF_SELECTED_READER, this, false);
|
|
prefs.addObserver(PREF_SELECTED_WEB, this, false);
|
|
prefs.addObserver(PREF_SELECTED_APP, this, false);
|
|
|
|
// Set up the feed content
|
|
var container = this._getContainer();
|
|
if (!container)
|
|
return;
|
|
|
|
this._setTitleText(container);
|
|
|
|
this._setTitleImage(container);
|
|
|
|
this._writeFeedContent(container);
|
|
}
|
|
finally {
|
|
this._removeFeedFromCache();
|
|
}
|
|
},
|
|
|
|
/**
|
|
* See nsIFeedWriter
|
|
*/
|
|
close: function FW_close() {
|
|
this._document = null;
|
|
this._window = null;
|
|
var prefs =
|
|
Cc["@mozilla.org/preferences-service;1"].
|
|
getService(Ci.nsIPrefBranch2);
|
|
prefs.removeObserver(PREF_SELECTED_ACTION, this);
|
|
prefs.removeObserver(PREF_SELECTED_READER, this);
|
|
prefs.removeObserver(PREF_SELECTED_WEB, this);
|
|
prefs.removeObserver(PREF_SELECTED_APP, this);
|
|
this._removeFeedFromCache();
|
|
},
|
|
|
|
_removeFeedFromCache: function FW__removeFeedFromCache() {
|
|
if (this._feedURI) {
|
|
var feedService =
|
|
Cc["@mozilla.org/browser/feeds/result-service;1"].
|
|
getService(Ci.nsIFeedResultService);
|
|
feedService.removeFeedResult(this._feedURI);
|
|
this._feedURI = null;
|
|
}
|
|
},
|
|
|
|
subscribe: function FW_subscribe() {
|
|
// Subscribe to the feed using the selected handler and save prefs
|
|
var prefs =
|
|
Cc["@mozilla.org/preferences-service;1"].
|
|
getService(Ci.nsIPrefBranch);
|
|
var defaultHandler = "reader";
|
|
var useAsDefault = this._document.getElementById("alwaysUse")
|
|
.getAttribute("checked");
|
|
|
|
var selectedItem = this._document.getElementById("handlersMenuList")
|
|
.wrappedJSObject.selectedItem;
|
|
|
|
// Show the file picker before subscribing if the
|
|
// choose application menuitem was choosen using the keyboard
|
|
if (selectedItem.id == "chooseApplicationMenuItem") {
|
|
if (!this._chooseClientApp())
|
|
return;
|
|
|
|
selectedItem = this._document.getElementById("handlersMenuList")
|
|
.wrappedJSObject.selectedItem;
|
|
}
|
|
|
|
if (selectedItem.hasAttribute("webhandlerurl")) {
|
|
var webURI = selectedItem.getAttribute("webhandlerurl");
|
|
prefs.setCharPref(PREF_SELECTED_READER, "web");
|
|
prefs.setCharPref(PREF_SELECTED_WEB, webURI);
|
|
|
|
var wccr =
|
|
Cc["@mozilla.org/embeddor.implemented/web-content-handler-registrar;1"].
|
|
getService(Ci.nsIWebContentConverterService);
|
|
var handler = wccr.getWebContentHandlerByURI(TYPE_MAYBE_FEED, webURI);
|
|
if (handler) {
|
|
if (useAsDefault)
|
|
wccr.setAutoHandler(TYPE_MAYBE_FEED, handler);
|
|
|
|
this._window.location.href =
|
|
handler.getHandlerURI(this._window.location.href);
|
|
}
|
|
}
|
|
else {
|
|
switch (selectedItem.id) {
|
|
case "selectedAppMenuItem":
|
|
#ifdef XP_WIN
|
|
case "defaultHandlerMenuItem":
|
|
#endif
|
|
prefs.setCharPref(PREF_SELECTED_READER, "client");
|
|
prefs.setComplexValue(PREF_SELECTED_APP, Ci.nsILocalFile,
|
|
selectedItem.file);
|
|
break;
|
|
case "liveBookmarksMenuItem":
|
|
defaultHandler = "bookmarks";
|
|
prefs.setCharPref(PREF_SELECTED_READER, "bookmarks");
|
|
break;
|
|
}
|
|
var feedService = Cc["@mozilla.org/browser/feeds/result-service;1"].
|
|
getService(Ci.nsIFeedResultService);
|
|
|
|
// Pull the title and subtitle out of the document
|
|
var feedTitle = this._document.getElementById(TITLE_ID).textContent;
|
|
var feedSubtitle =
|
|
this._document.getElementById(SUBTITLE_ID).textContent;
|
|
feedService.addToClientReader(this._window.location.href,
|
|
feedTitle, feedSubtitle);
|
|
}
|
|
|
|
// If "Always use..." is checked, we should set PREF_SELECTED_ACTION
|
|
// to either "reader" (If a web reader or if an application is selected),
|
|
// or to "bookmarks" (if the live bookmarks option is selected).
|
|
// Otherwise, we should set it to "ask"
|
|
if (useAsDefault)
|
|
prefs.setCharPref(PREF_SELECTED_ACTION, defaultHandler);
|
|
else
|
|
prefs.setCharPref(PREF_SELECTED_ACTION, "ask");
|
|
},
|
|
|
|
/**
|
|
* See nsIObserver
|
|
*/
|
|
observe: function FW_observe(subject, topic, data) {
|
|
if (!this._window) {
|
|
// this._window is null unless this.write was called with a trusted
|
|
// window object.
|
|
return;
|
|
}
|
|
|
|
if (topic == "nsPref:changed") {
|
|
switch (data) {
|
|
case PREF_SELECTED_READER:
|
|
case PREF_SELECTED_WEB:
|
|
case PREF_SELECTED_APP:
|
|
this._setSelectedHandler();
|
|
break;
|
|
case PREF_SELECTED_ACTION:
|
|
this._setAlwaysUseCheckedState();
|
|
}
|
|
}
|
|
},
|
|
|
|
/**
|
|
* See nsIClassInfo
|
|
*/
|
|
getInterfaces: function WCCR_getInterfaces(countRef) {
|
|
var interfaces =
|
|
[Ci.nsIFeedWriter, Ci.nsIClassInfo, Ci.nsISupports];
|
|
countRef.value = interfaces.length;
|
|
return interfaces;
|
|
},
|
|
getHelperForLanguage: function WCCR_getHelperForLanguage(language) {
|
|
return null;
|
|
},
|
|
contractID: FW_CONTRACTID,
|
|
classDescription: FW_CLASSNAME,
|
|
classID: FW_CLASSID,
|
|
implementationLanguage: Ci.nsIProgrammingLanguage.JAVASCRIPT,
|
|
flags: Ci.nsIClassInfo.DOM_OBJECT,
|
|
|
|
QueryInterface: function FW_QueryInterface(iid) {
|
|
if (iid.equals(Ci.nsIFeedWriter) ||
|
|
iid.equals(Ci.nsIClassInfo) ||
|
|
iid.equals(Ci.nsIDOMEventListener) ||
|
|
iid.equals(Ci.nsIObserver) ||
|
|
iid.equals(Ci.nsISupports))
|
|
return this;
|
|
throw Cr.NS_ERROR_NO_INTERFACE;
|
|
}
|
|
};
|
|
|
|
var Module = {
|
|
QueryInterface: function M_QueryInterface(iid) {
|
|
if (iid.equals(Ci.nsIModule) ||
|
|
iid.equals(Ci.nsISupports))
|
|
return this;
|
|
throw Cr.NS_ERROR_NO_INTERFACE;
|
|
},
|
|
|
|
getClassObject: function M_getClassObject(cm, cid, iid) {
|
|
if (!iid.equals(Ci.nsIFactory))
|
|
throw Cr.NS_ERROR_NOT_IMPLEMENTED;
|
|
|
|
if (cid.equals(FW_CLASSID))
|
|
return new GenericComponentFactory(FeedWriter);
|
|
|
|
throw Cr.NS_ERROR_NO_INTERFACE;
|
|
},
|
|
|
|
registerSelf: function M_registerSelf(cm, file, location, type) {
|
|
var cr = cm.QueryInterface(Ci.nsIComponentRegistrar);
|
|
|
|
cr.registerFactoryLocation(FW_CLASSID, FW_CLASSNAME, FW_CONTRACTID,
|
|
file, location, type);
|
|
|
|
var catman =
|
|
Cc["@mozilla.org/categorymanager;1"].
|
|
getService(Ci.nsICategoryManager);
|
|
catman.addCategoryEntry("JavaScript global constructor",
|
|
"BrowserFeedWriter", FW_CONTRACTID, true, true);
|
|
},
|
|
|
|
unregisterSelf: function M_unregisterSelf(cm, location, type) {
|
|
var cr = cm.QueryInterface(Ci.nsIComponentRegistrar);
|
|
cr.unregisterFactoryLocation(FW_CLASSID, location);
|
|
},
|
|
|
|
canUnload: function M_canUnload(cm) {
|
|
return true;
|
|
}
|
|
};
|
|
|
|
function NSGetModule(cm, file) {
|
|
return Module;
|
|
}
|
|
|
|
#include ../../../../toolkit/content/debug.js
|
|
#include GenericFactory.js
|