summaryrefslogtreecommitdiffstats
path: root/application/palemoon/components/downloads/DownloadsTaskbar.jsm
diff options
context:
space:
mode:
Diffstat (limited to 'application/palemoon/components/downloads/DownloadsTaskbar.jsm')
-rw-r--r--application/palemoon/components/downloads/DownloadsTaskbar.jsm177
1 files changed, 0 insertions, 177 deletions
diff --git a/application/palemoon/components/downloads/DownloadsTaskbar.jsm b/application/palemoon/components/downloads/DownloadsTaskbar.jsm
deleted file mode 100644
index cf915abb5..000000000
--- a/application/palemoon/components/downloads/DownloadsTaskbar.jsm
+++ /dev/null
@@ -1,177 +0,0 @@
-/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
-/* vim: set ts=2 et sw=2 tw=80 filetype=javascript: */
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-/**
- * Handles the download progress indicator in the taskbar.
- */
-
-"use strict";
-
-this.EXPORTED_SYMBOLS = [
- "DownloadsTaskbar",
-];
-
-////////////////////////////////////////////////////////////////////////////////
-//// Globals
-
-const Cc = Components.classes;
-const Ci = Components.interfaces;
-const Cu = Components.utils;
-const Cr = Components.results;
-
-Cu.import("resource://gre/modules/XPCOMUtils.jsm");
-
-XPCOMUtils.defineLazyModuleGetter(this, "Downloads",
- "resource://gre/modules/Downloads.jsm");
-XPCOMUtils.defineLazyModuleGetter(this, "RecentWindow",
- "resource:///modules/RecentWindow.jsm");
-XPCOMUtils.defineLazyModuleGetter(this, "Services",
- "resource://gre/modules/Services.jsm");
-
-XPCOMUtils.defineLazyGetter(this, "gWinTaskbar", function () {
- if (!("@mozilla.org/windows-taskbar;1" in Cc)) {
- return null;
- }
- let winTaskbar = Cc["@mozilla.org/windows-taskbar;1"]
- .getService(Ci.nsIWinTaskbar);
- return winTaskbar.available && winTaskbar;
-});
-
-XPCOMUtils.defineLazyGetter(this, "gMacTaskbarProgress", function () {
- return ("@mozilla.org/widget/macdocksupport;1" in Cc) &&
- Cc["@mozilla.org/widget/macdocksupport;1"]
- .getService(Ci.nsITaskbarProgress);
-});
-
-////////////////////////////////////////////////////////////////////////////////
-//// DownloadsTaskbar
-
-/**
- * Handles the download progress indicator in the taskbar.
- */
-this.DownloadsTaskbar = {
- /**
- * Underlying DownloadSummary providing the aggregate download information, or
- * null if the indicator has never been initialized.
- */
- _summary: null,
-
- /**
- * nsITaskbarProgress object to which download information is dispatched.
- * This can be null if the indicator has never been initialized or if the
- * indicator is currently hidden on Windows.
- */
- _taskbarProgress: null,
-
- /**
- * This method is called after a new browser window is opened, and ensures
- * that the download progress indicator is displayed in the taskbar.
- *
- * On Windows, the indicator is attached to the first browser window that
- * calls this method. When the window is closed, the indicator is moved to
- * another browser window, if available, in no particular order. When there
- * are no browser windows visible, the indicator is hidden.
- *
- * On Mac OS X, the indicator is initialized globally when this method is
- * called for the first time. Subsequent calls have no effect.
- *
- * @param aBrowserWindow
- * nsIDOMWindow object of the newly opened browser window to which the
- * indicator may be attached.
- */
- registerIndicator(aBrowserWindow) {
- if (!this._taskbarProgress) {
- if (gMacTaskbarProgress) {
- // On Mac OS X, we have to register the global indicator only once.
- this._taskbarProgress = gMacTaskbarProgress;
- // Free the XPCOM reference on shutdown, to prevent detecting a leak.
- Services.obs.addObserver(() => {
- this._taskbarProgress = null;
- gMacTaskbarProgress = null;
- }, "quit-application-granted", false);
- } else if (gWinTaskbar) {
- // On Windows, the indicator is currently hidden because we have no
- // previous browser window, thus we should attach the indicator now.
- this._attachIndicator(aBrowserWindow);
- } else {
- // The taskbar indicator is not available on this platform.
- return;
- }
- }
-
- // Ensure that the DownloadSummary object will be created asynchronously.
- if (!this._summary) {
- Downloads.getSummary(Downloads.ALL).then(summary => {
- // In case the method is re-entered, we simply ignore redundant
- // invocations of the callback, instead of keeping separate state.
- if (this._summary) {
- return;
- }
- this._summary = summary;
- return this._summary.addView(this);
- }).then(null, Cu.reportError);
- }
- },
-
- /**
- * On Windows, attaches the taskbar indicator to the specified browser window.
- */
- _attachIndicator(aWindow) {
- // Activate the indicator on the specified window.
- let docShell = aWindow.QueryInterface(Ci.nsIInterfaceRequestor)
- .getInterface(Ci.nsIWebNavigation)
- .QueryInterface(Ci.nsIDocShellTreeItem).treeOwner
- .QueryInterface(Ci.nsIInterfaceRequestor)
- .getInterface(Ci.nsIXULWindow).docShell;
- this._taskbarProgress = gWinTaskbar.getTaskbarProgress(docShell);
-
- // If the DownloadSummary object has already been created, we should update
- // the state of the new indicator, otherwise it will be updated as soon as
- // the DownloadSummary view is registered.
- if (this._summary) {
- this.onSummaryChanged();
- }
-
- aWindow.addEventListener("unload", () => {
- // Locate another browser window, excluding the one being closed.
- let browserWindow = RecentWindow.getMostRecentBrowserWindow();
- if (browserWindow) {
- // Move the progress indicator to the other browser window.
- this._attachIndicator(browserWindow);
- } else {
- // The last browser window has been closed. We remove the reference to
- // the taskbar progress object so that the indicator will be registered
- // again on the next browser window that is opened.
- this._taskbarProgress = null;
- }
- }, false);
- },
-
- //////////////////////////////////////////////////////////////////////////////
- //// DownloadSummary view
-
- onSummaryChanged() {
- // If the last browser window has been closed, we have no indicator any more.
- if (!this._taskbarProgress) {
- return;
- }
-
- if (this._summary.allHaveStopped || this._summary.progressTotalBytes == 0) {
- this._taskbarProgress.setProgressState(
- Ci.nsITaskbarProgress.STATE_NO_PROGRESS, 0, 0);
- } else {
- // For a brief moment before completion, some download components may
- // report more transferred bytes than the total number of bytes. Thus,
- // ensure that we never break the expectations of the progress indicator.
- let progressCurrentBytes = Math.min(this._summary.progressTotalBytes,
- this._summary.progressCurrentBytes);
- this._taskbarProgress.setProgressState(
- Ci.nsITaskbarProgress.STATE_NORMAL,
- progressCurrentBytes,
- this._summary.progressTotalBytes);
- }
- },
-};