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107 lines
3.8 KiB
JavaScript
107 lines
3.8 KiB
JavaScript
/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
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/* 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
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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var { classes: Cc, interfaces: Ci, utils: Cu } = Components;
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Cu.import("resource://gre/modules/Services.jsm");
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Cu.import("resource://gre/modules/XPCOMUtils.jsm");
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XPCOMUtils.defineLazyModuleGetter(this, "AboutReader", "resource://gre/modules/AboutReader.jsm");
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XPCOMUtils.defineLazyModuleGetter(this, "ReaderMode", "resource://gre/modules/ReaderMode.jsm");
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XPCOMUtils.defineLazyModuleGetter(this, "LoginManagerContent", "resource://gre/modules/LoginManagerContent.jsm");
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var dump = Cu.import("resource://gre/modules/AndroidLog.jsm", {}).AndroidLog.d.bind(null, "Content");
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var global = this;
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// This is copied from desktop's tab-content.js. See bug 1153485 about sharing this code somehow.
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var AboutReaderListener = {
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_articlePromise: null,
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init: function() {
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addEventListener("AboutReaderContentLoaded", this, false, true);
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addEventListener("DOMContentLoaded", this, false);
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addEventListener("pageshow", this, false);
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addEventListener("pagehide", this, false);
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addMessageListener("Reader:ParseDocument", this);
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addMessageListener("Reader:PushState", this);
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},
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receiveMessage: function(message) {
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switch (message.name) {
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case "Reader:ParseDocument":
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this._articlePromise = ReaderMode.parseDocument(content.document).catch(Cu.reportError);
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content.document.location = "about:reader?url=" + encodeURIComponent(message.data.url);
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break;
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case "Reader:PushState":
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this.updateReaderButton(!!(message.data && message.data.isArticle));
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break;
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}
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},
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get isAboutReader() {
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return content.document.documentURI.startsWith("about:reader");
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},
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handleEvent: function(aEvent) {
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if (aEvent.originalTarget.defaultView != content) {
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return;
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}
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switch (aEvent.type) {
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case "AboutReaderContentLoaded":
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if (!this.isAboutReader) {
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return;
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}
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// If we are restoring multiple reader mode tabs during session restore, duplicate "DOMContentLoaded"
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// events may be fired for the visible tab. The inital "DOMContentLoaded" may be received before the
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// document body is available, so we avoid instantiating an AboutReader object, expecting that a
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// valid message will follow. See bug 925983.
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if (content.document.body) {
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new AboutReader(global, content, this._articlePromise);
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this._articlePromise = null;
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}
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break;
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case "pagehide":
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sendAsyncMessage("Reader:UpdateReaderButton", { isArticle: false });
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break;
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case "pageshow":
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// If a page is loaded from the bfcache, we won't get a "DOMContentLoaded"
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// event, so we need to rely on "pageshow" in this case.
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if (aEvent.persisted) {
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this.updateReaderButton();
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}
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break;
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case "DOMContentLoaded":
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this.updateReaderButton();
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break;
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}
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},
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updateReaderButton: function(forceNonArticle) {
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if (!ReaderMode.isEnabledForParseOnLoad || this.isAboutReader ||
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!(content.document instanceof content.HTMLDocument) ||
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content.document.mozSyntheticDocument) {
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return;
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}
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// Only send updates when there are articles; there's no point updating with
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// |false| all the time.
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if (ReaderMode.isProbablyReaderable(content.document)) {
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sendAsyncMessage("Reader:UpdateReaderButton", { isArticle: true });
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} else if (forceNonArticle) {
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sendAsyncMessage("Reader:UpdateReaderButton", { isArticle: false });
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}
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},
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};
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AboutReaderListener.init();
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addMessageListener("RemoteLogins:fillForm", function(message) {
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LoginManagerContent.receiveMessage(message, content);
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});
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