mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
1808 lines
60 KiB
JavaScript
1808 lines
60 KiB
JavaScript
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=2 et sw=2 tw=80: */
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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 file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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/**
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* Handles the Downloads panel user interface for each browser window.
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*
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* This file includes the following constructors and global objects:
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*
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* DownloadsPanel
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* Main entry point for the downloads panel interface.
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*
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* DownloadsOverlayLoader
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* Allows loading the downloads panel and the status indicator interfaces on
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* demand, to improve startup performance.
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*
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* DownloadsView
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* Builds and updates the downloads list widget, responding to changes in the
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* download state and real-time data. In addition, handles part of the user
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* interaction events raised by the downloads list widget.
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*
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* DownloadsViewItem
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* Builds and updates a single item in the downloads list widget, responding to
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* changes in the download state and real-time data.
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*
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* DownloadsViewController
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* Handles part of the user interaction events raised by the downloads list
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* widget, in particular the "commands" that apply to multiple items, and
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* dispatches the commands that apply to individual items.
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*
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* DownloadsViewItemController
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* Handles all the user interaction events, in particular the "commands",
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* related to a single item in the downloads list widgets.
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*/
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/**
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* A few words on focus and focusrings
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*
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* We do quite a few hacks in the Downloads Panel for focusrings. In fact, we
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* basically suppress most if not all XUL-level focusrings, and style/draw
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* them ourselves (using :focus instead of -moz-focusring). There are a few
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* reasons for this:
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*
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* 1) Richlists on OSX don't have focusrings; instead, they are shown as
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* selected. This makes for some ambiguity when we have a focused/selected
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* item in the list, and the mouse is hovering a completed download (which
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* highlights).
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* 2) Windows doesn't show focusrings until after the first time that tab is
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* pressed (and by then you're focusing the second item in the panel).
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* 3) Richlistbox sets -moz-focusring even when we select it with a mouse.
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*
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* In general, the desired behaviour is to focus the first item after pressing
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* tab/down, and show that focus with a ring. Then, if the mouse moves over
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* the panel, to hide that focus ring; essentially resetting us to the state
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* before pressing the key.
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*
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* We end up capturing the tab/down key events, and preventing their default
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* behaviour. We then set a "keyfocus" attribute on the panel, which allows
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* us to draw a ring around the currently focused element. If the panel is
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* closed or the mouse moves over the panel, we remove the attribute.
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*/
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"use strict";
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////////////////////////////////////////////////////////////////////////////////
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//// Globals
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XPCOMUtils.defineLazyModuleGetter(this, "DownloadUtils",
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"resource://gre/modules/DownloadUtils.jsm");
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XPCOMUtils.defineLazyModuleGetter(this, "DownloadsCommon",
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"resource:///modules/DownloadsCommon.jsm");
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XPCOMUtils.defineLazyModuleGetter(this, "OS",
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"resource://gre/modules/osfile.jsm");
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XPCOMUtils.defineLazyModuleGetter(this, "PrivateBrowsingUtils",
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"resource://gre/modules/PrivateBrowsingUtils.jsm");
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XPCOMUtils.defineLazyModuleGetter(this, "PlacesUtils",
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"resource://gre/modules/PlacesUtils.jsm");
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XPCOMUtils.defineLazyModuleGetter(this, "NetUtil",
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"resource://gre/modules/NetUtil.jsm");
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////////////////////////////////////////////////////////////////////////////////
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//// DownloadsPanel
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/**
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* Main entry point for the downloads panel interface.
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*/
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const DownloadsPanel = {
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//////////////////////////////////////////////////////////////////////////////
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//// Initialization and termination
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/**
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* Internal state of the downloads panel, based on one of the kState
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* constants. This is not the same state as the XUL panel element.
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*/
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_state: 0,
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/** The panel is not linked to downloads data yet. */
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get kStateUninitialized() 0,
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/** This object is linked to data, but the panel is invisible. */
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get kStateHidden() 1,
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/** The panel will be shown as soon as possible. */
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get kStateWaitingData() 2,
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/** The panel is almost shown - we're just waiting to get a handle on the
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anchor. */
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get kStateWaitingAnchor() 3,
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/** The panel is open. */
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get kStateShown() 4,
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/**
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* Location of the panel overlay.
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*/
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get kDownloadsOverlay()
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"chrome://browser/content/downloads/downloadsOverlay.xul",
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/**
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* Starts loading the download data in background, without opening the panel.
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* Use showPanel instead to load the data and open the panel at the same time.
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*
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* @param aCallback
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* Called when initialization is complete.
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*/
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initialize: function DP_initialize(aCallback)
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{
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DownloadsCommon.log("Attempting to initialize DownloadsPanel for a window.");
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if (this._state != this.kStateUninitialized) {
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DownloadsCommon.log("DownloadsPanel is already initialized.");
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DownloadsOverlayLoader.ensureOverlayLoaded(this.kDownloadsOverlay,
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aCallback);
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return;
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}
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this._state = this.kStateHidden;
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window.addEventListener("unload", this.onWindowUnload, false);
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// Ensure that the Download Manager service is running. This resumes
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// active downloads if required. If there are downloads to be shown in the
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// panel, starting the service will make us load their data asynchronously.
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if (DownloadsCommon.useJSTransfer) {
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DownloadsCommon.initializeAllDataLinks();
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} else {
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Services.downloads;
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}
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// Now that data loading has eventually started, load the required XUL
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// elements and initialize our views.
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DownloadsCommon.log("Ensuring DownloadsPanel overlay loaded.");
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DownloadsOverlayLoader.ensureOverlayLoaded(this.kDownloadsOverlay,
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function DP_I_callback() {
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DownloadsViewController.initialize();
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DownloadsCommon.log("Attaching DownloadsView...");
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DownloadsCommon.getData(window).addView(DownloadsView);
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DownloadsCommon.getSummary(window, DownloadsView.kItemCountLimit)
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.addView(DownloadsSummary);
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DownloadsCommon.log("DownloadsView attached - the panel for this window",
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"should now see download items come in.");
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DownloadsPanel._attachEventListeners();
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DownloadsCommon.log("DownloadsPanel initialized.");
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aCallback();
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});
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},
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/**
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* Closes the downloads panel and frees the internal resources related to the
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* downloads. The downloads panel can be reopened later, even after this
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* function has been called.
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*/
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terminate: function DP_terminate()
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{
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DownloadsCommon.log("Attempting to terminate DownloadsPanel for a window.");
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if (this._state == this.kStateUninitialized) {
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DownloadsCommon.log("DownloadsPanel was never initialized. Nothing to do.");
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return;
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}
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window.removeEventListener("unload", this.onWindowUnload, false);
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// Ensure that the panel is closed before shutting down.
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this.hidePanel();
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DownloadsViewController.terminate();
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DownloadsCommon.getData(window).removeView(DownloadsView);
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DownloadsCommon.getSummary(window, DownloadsView.kItemCountLimit)
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.removeView(DownloadsSummary);
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this._unattachEventListeners();
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this._state = this.kStateUninitialized;
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DownloadsSummary.active = false;
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DownloadsCommon.log("DownloadsPanel terminated.");
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},
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//////////////////////////////////////////////////////////////////////////////
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//// Panel interface
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/**
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* Main panel element in the browser window, or null if the panel overlay
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* hasn't been loaded yet.
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*/
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get panel()
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{
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// If the downloads panel overlay hasn't loaded yet, just return null
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// without reseting this.panel.
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let downloadsPanel = document.getElementById("downloadsPanel");
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if (!downloadsPanel)
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return null;
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delete this.panel;
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return this.panel = downloadsPanel;
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},
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/**
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* Starts opening the downloads panel interface, anchored to the downloads
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* button of the browser window. The list of downloads to display is
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* initialized the first time this method is called, and the panel is shown
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* only when data is ready.
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*/
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showPanel: function DP_showPanel()
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{
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DownloadsCommon.log("Opening the downloads panel.");
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if (this.isPanelShowing) {
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DownloadsCommon.log("Panel is already showing - focusing instead.");
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this._focusPanel();
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return;
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}
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this.initialize(function DP_SP_callback() {
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// Delay displaying the panel because this function will sometimes be
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// called while another window is closing (like the window for selecting
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// whether to save or open the file), and that would cause the panel to
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// close immediately.
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setTimeout(function () DownloadsPanel._openPopupIfDataReady(), 0);
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}.bind(this));
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DownloadsCommon.log("Waiting for the downloads panel to appear.");
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this._state = this.kStateWaitingData;
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},
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/**
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* Hides the downloads panel, if visible, but keeps the internal state so that
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* the panel can be reopened quickly if required.
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*/
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hidePanel: function DP_hidePanel()
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{
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DownloadsCommon.log("Closing the downloads panel.");
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if (!this.isPanelShowing) {
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DownloadsCommon.log("Downloads panel is not showing - nothing to do.");
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return;
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}
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this.panel.hidePopup();
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// Ensure that we allow the panel to be reopened. Note that, if the popup
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// was open, then the onPopupHidden event handler has already updated the
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// current state, otherwise we must update the state ourselves.
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this._state = this.kStateHidden;
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DownloadsCommon.log("Downloads panel is now closed.");
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},
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/**
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* Indicates whether the panel is shown or will be shown.
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*/
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get isPanelShowing()
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{
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return this._state == this.kStateWaitingData ||
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this._state == this.kStateWaitingAnchor ||
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this._state == this.kStateShown;
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},
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/**
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* Returns whether the user has started keyboard navigation.
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*/
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get keyFocusing()
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{
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return this.panel.hasAttribute("keyfocus");
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},
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/**
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* Set to true if the user has started keyboard navigation, and we should be
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* showing focusrings in the panel. Also adds a mousemove event handler to
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* the panel which disables keyFocusing.
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*/
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set keyFocusing(aValue)
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{
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if (aValue) {
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this.panel.setAttribute("keyfocus", "true");
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this.panel.addEventListener("mousemove", this);
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} else {
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this.panel.removeAttribute("keyfocus");
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this.panel.removeEventListener("mousemove", this);
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}
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return aValue;
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},
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/**
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* Handles the mousemove event for the panel, which disables focusring
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* visualization.
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*/
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handleEvent: function DP_handleEvent(aEvent)
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{
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if (aEvent.type == "mousemove") {
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this.keyFocusing = false;
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}
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},
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//////////////////////////////////////////////////////////////////////////////
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//// Callback functions from DownloadsView
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/**
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* Called after data loading finished.
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*/
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onViewLoadCompleted: function DP_onViewLoadCompleted()
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{
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this._openPopupIfDataReady();
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},
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//////////////////////////////////////////////////////////////////////////////
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//// User interface event functions
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onWindowUnload: function DP_onWindowUnload()
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{
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// This function is registered as an event listener, we can't use "this".
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DownloadsPanel.terminate();
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},
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onPopupShown: function DP_onPopupShown(aEvent)
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{
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// Ignore events raised by nested popups.
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if (aEvent.target != aEvent.currentTarget) {
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return;
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}
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DownloadsCommon.log("Downloads panel has shown.");
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this._state = this.kStateShown;
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// Since at most one popup is open at any given time, we can set globally.
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DownloadsCommon.getIndicatorData(window).attentionSuppressed = true;
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// Ensure that the first item is selected when the panel is focused.
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if (DownloadsView.richListBox.itemCount > 0 &&
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DownloadsView.richListBox.selectedIndex == -1) {
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DownloadsView.richListBox.selectedIndex = 0;
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}
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this._focusPanel();
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},
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onPopupHidden: function DP_onPopupHidden(aEvent)
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{
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// Ignore events raised by nested popups.
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if (aEvent.target != aEvent.currentTarget) {
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return;
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}
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DownloadsCommon.log("Downloads panel has hidden.");
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// Removes the keyfocus attribute so that we stop handling keyboard
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// navigation.
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this.keyFocusing = false;
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// Since at most one popup is open at any given time, we can set globally.
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DownloadsCommon.getIndicatorData(window).attentionSuppressed = false;
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// Allow the anchor to be hidden.
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DownloadsButton.releaseAnchor();
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// Allow the panel to be reopened.
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this._state = this.kStateHidden;
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},
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//////////////////////////////////////////////////////////////////////////////
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//// Related operations
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/**
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* Shows or focuses the user interface dedicated to downloads history.
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*/
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showDownloadsHistory: function DP_showDownloadsHistory()
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{
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DownloadsCommon.log("Showing download history.");
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// Hide the panel before showing another window, otherwise focus will return
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// to the browser window when the panel closes automatically.
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this.hidePanel();
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BrowserDownloadsUI();
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},
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//////////////////////////////////////////////////////////////////////////////
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//// Internal functions
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/**
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* Attach event listeners to a panel element. These listeners should be
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* removed in _unattachEventListeners. This is called automatically after the
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* panel has successfully loaded.
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*/
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_attachEventListeners: function DP__attachEventListeners()
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{
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// Handle keydown to support accel-V.
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this.panel.addEventListener("keydown", this._onKeyDown.bind(this), false);
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// Handle keypress to be able to preventDefault() events before they reach
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// the richlistbox, for keyboard navigation.
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this.panel.addEventListener("keypress", this._onKeyPress.bind(this), false);
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},
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/**
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* Unattach event listeners that were added in _attachEventListeners. This
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* is called automatically on panel termination.
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*/
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_unattachEventListeners: function DP__unattachEventListeners()
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{
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this.panel.removeEventListener("keydown", this._onKeyDown.bind(this),
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false);
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this.panel.removeEventListener("keypress", this._onKeyPress.bind(this),
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false);
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},
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_onKeyPress: function DP__onKeyPress(aEvent)
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{
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// Handle unmodified keys only.
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if (aEvent.altKey || aEvent.ctrlKey || aEvent.shiftKey || aEvent.metaKey) {
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return;
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}
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let richListBox = DownloadsView.richListBox;
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// If the user has pressed the tab, up, or down cursor key, start keyboard
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// navigation, thus enabling focusrings in the panel. Keyboard navigation
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// is automatically disabled if the user moves the mouse on the panel, or
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// if the panel is closed.
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if ((aEvent.keyCode == Ci.nsIDOMKeyEvent.DOM_VK_TAB ||
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aEvent.keyCode == Ci.nsIDOMKeyEvent.DOM_VK_UP ||
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aEvent.keyCode == Ci.nsIDOMKeyEvent.DOM_VK_DOWN) &&
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!this.keyFocusing) {
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this.keyFocusing = true;
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// Ensure there's a selection, we will show the focus ring around it and
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// prevent the richlistbox from changing the selection.
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if (DownloadsView.richListBox.selectedIndex == -1)
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DownloadsView.richListBox.selectedIndex = 0;
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aEvent.preventDefault();
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return;
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}
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if (aEvent.keyCode == Ci.nsIDOMKeyEvent.DOM_VK_DOWN) {
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// If the last element in the list is selected, or the footer is already
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// focused, focus the footer.
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if (richListBox.selectedItem === richListBox.lastChild ||
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document.activeElement.parentNode.id === "downloadsFooter") {
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DownloadsFooter.focus();
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aEvent.preventDefault();
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return;
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}
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}
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// Pass keypress events to the richlistbox view when it's focused.
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if (document.activeElement === richListBox) {
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DownloadsView.onDownloadKeyPress(aEvent);
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}
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},
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/**
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* Keydown listener that listens for the keys to start key focusing, as well
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* as the the accel-V "paste" event, which initiates a file download if the
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* pasted item can be resolved to a URI.
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*/
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_onKeyDown: function DP__onKeyDown(aEvent)
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{
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// If the footer is focused and the downloads list has at least 1 element
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// in it, focus the last element in the list when going up.
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if (aEvent.keyCode == Ci.nsIDOMKeyEvent.DOM_VK_UP &&
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document.activeElement.parentNode.id === "downloadsFooter" &&
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DownloadsView.richListBox.firstChild) {
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DownloadsView.richListBox.focus();
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DownloadsView.richListBox.selectedItem = DownloadsView.richListBox.lastChild;
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aEvent.preventDefault();
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return;
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}
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let pasting = aEvent.keyCode == Ci.nsIDOMKeyEvent.DOM_VK_V &&
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#ifdef XP_MACOSX
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aEvent.metaKey;
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#else
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aEvent.ctrlKey;
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#endif
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if (!pasting) {
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return;
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}
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DownloadsCommon.log("Received a paste event.");
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let trans = Cc["@mozilla.org/widget/transferable;1"]
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.createInstance(Ci.nsITransferable);
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trans.init(null);
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let flavors = ["text/x-moz-url", "text/unicode"];
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flavors.forEach(trans.addDataFlavor);
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Services.clipboard.getData(trans, Services.clipboard.kGlobalClipboard);
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// Getting the data or creating the nsIURI might fail
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try {
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let data = {};
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trans.getAnyTransferData({}, data, {});
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let [url, name] = data.value
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.QueryInterface(Ci.nsISupportsString)
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.data
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.split("\n");
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if (!url) {
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return;
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}
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let uri = NetUtil.newURI(url);
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DownloadsCommon.log("Pasted URL seems valid. Starting download.");
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saveURL(uri.spec, name || uri.spec, null, true, true,
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undefined, document);
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} catch (ex) {}
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},
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/**
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* Move focus to the main element in the downloads panel, unless another
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* element in the panel is already focused.
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*/
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_focusPanel: function DP_focusPanel()
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{
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// We may be invoked while the panel is still waiting to be shown.
|
|
if (this._state != this.kStateShown) {
|
|
return;
|
|
}
|
|
|
|
let element = document.commandDispatcher.focusedElement;
|
|
while (element && element != this.panel) {
|
|
element = element.parentNode;
|
|
}
|
|
if (!element) {
|
|
if (DownloadsView.richListBox.itemCount > 0) {
|
|
DownloadsView.richListBox.focus();
|
|
} else {
|
|
DownloadsFooter.focus();
|
|
}
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Opens the downloads panel when data is ready to be displayed.
|
|
*/
|
|
_openPopupIfDataReady: function DP_openPopupIfDataReady()
|
|
{
|
|
// We don't want to open the popup if we already displayed it, or if we are
|
|
// still loading data.
|
|
if (this._state != this.kStateWaitingData || DownloadsView.loading) {
|
|
return;
|
|
}
|
|
|
|
this._state = this.kStateWaitingAnchor;
|
|
|
|
// Ensure the anchor is visible. If that is not possible, show the panel
|
|
// anchored to the top area of the window, near the default anchor position.
|
|
DownloadsButton.getAnchor(function DP_OPIDR_callback(aAnchor) {
|
|
// If somehow we've switched states already (by getting a panel hiding
|
|
// event before an overlay is loaded, for example), bail out.
|
|
if (this._state != this.kStateWaitingAnchor)
|
|
return;
|
|
|
|
// At this point, if the window is minimized, opening the panel could fail
|
|
// without any notification, and there would be no way to either open or
|
|
// close the panel anymore. To prevent this, check if the window is
|
|
// minimized and in that case force the panel to the closed state.
|
|
if (window.windowState == Ci.nsIDOMChromeWindow.STATE_MINIMIZED) {
|
|
DownloadsButton.releaseAnchor();
|
|
this._state = this.kStateHidden;
|
|
return;
|
|
}
|
|
|
|
// When the panel is opened, we check if the target files of visible items
|
|
// still exist, and update the allowed items interactions accordingly. We
|
|
// do these checks on a background thread, and don't prevent the panel to
|
|
// be displayed while these checks are being performed.
|
|
for each (let viewItem in DownloadsView._viewItems) {
|
|
viewItem.verifyTargetExists();
|
|
}
|
|
|
|
if (aAnchor) {
|
|
DownloadsCommon.log("Opening downloads panel popup.");
|
|
this.panel.openPopup(aAnchor, "bottomcenter topright", 0, 0, false,
|
|
null);
|
|
} else {
|
|
DownloadsCommon.error("We can't find the anchor! Failure case - opening",
|
|
"downloads panel on TabsToolbar. We should never",
|
|
"get here!");
|
|
Components.utils.reportError(
|
|
"Downloads button cannot be found");
|
|
}
|
|
}.bind(this));
|
|
}
|
|
};
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
//// DownloadsOverlayLoader
|
|
|
|
/**
|
|
* Allows loading the downloads panel and the status indicator interfaces on
|
|
* demand, to improve startup performance.
|
|
*/
|
|
const DownloadsOverlayLoader = {
|
|
/**
|
|
* We cannot load two overlays at the same time, thus we use a queue of
|
|
* pending load requests.
|
|
*/
|
|
_loadRequests: [],
|
|
|
|
/**
|
|
* True while we are waiting for an overlay to be loaded.
|
|
*/
|
|
_overlayLoading: false,
|
|
|
|
/**
|
|
* This object has a key for each overlay URI that is already loaded.
|
|
*/
|
|
_loadedOverlays: {},
|
|
|
|
/**
|
|
* Loads the specified overlay and invokes the given callback when finished.
|
|
*
|
|
* @param aOverlay
|
|
* String containing the URI of the overlay to load in the current
|
|
* window. If this overlay has already been loaded using this
|
|
* function, then the overlay is not loaded again.
|
|
* @param aCallback
|
|
* Invoked when loading is completed. If the overlay is already
|
|
* loaded, the function is called immediately.
|
|
*/
|
|
ensureOverlayLoaded: function DOL_ensureOverlayLoaded(aOverlay, aCallback)
|
|
{
|
|
// The overlay is already loaded, invoke the callback immediately.
|
|
if (aOverlay in this._loadedOverlays) {
|
|
aCallback();
|
|
return;
|
|
}
|
|
|
|
// The callback will be invoked when loading is finished.
|
|
this._loadRequests.push({ overlay: aOverlay, callback: aCallback });
|
|
if (this._overlayLoading) {
|
|
return;
|
|
}
|
|
|
|
function DOL_EOL_loadCallback() {
|
|
this._overlayLoading = false;
|
|
this._loadedOverlays[aOverlay] = true;
|
|
|
|
// Loading the overlay causes all the persisted XUL attributes to be
|
|
// reapplied, including "iconsize" on the toolbars. Until bug 640158 is
|
|
// fixed, we must recalculate the correct "iconsize" attributes manually.
|
|
retrieveToolbarIconsizesFromTheme();
|
|
|
|
this.processPendingRequests();
|
|
}
|
|
|
|
this._overlayLoading = true;
|
|
DownloadsCommon.log("Loading overlay ", aOverlay);
|
|
document.loadOverlay(aOverlay, DOL_EOL_loadCallback.bind(this));
|
|
},
|
|
|
|
/**
|
|
* Re-processes all the currently pending requests, invoking the callbacks
|
|
* and/or loading more overlays as needed. In most cases, there will be a
|
|
* single request for one overlay, that will be processed immediately.
|
|
*/
|
|
processPendingRequests: function DOL_processPendingRequests()
|
|
{
|
|
// Re-process all the currently pending requests, yet allow more requests
|
|
// to be appended at the end of the array if we're not ready for them.
|
|
let currentLength = this._loadRequests.length;
|
|
for (let i = 0; i < currentLength; i++) {
|
|
let request = this._loadRequests.shift();
|
|
|
|
// We must call ensureOverlayLoaded again for each request, to check if
|
|
// the associated callback can be invoked now, or if we must still wait
|
|
// for the associated overlay to load.
|
|
this.ensureOverlayLoaded(request.overlay, request.callback);
|
|
}
|
|
}
|
|
};
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
//// DownloadsView
|
|
|
|
/**
|
|
* Builds and updates the downloads list widget, responding to changes in the
|
|
* download state and real-time data. In addition, handles part of the user
|
|
* interaction events raised by the downloads list widget.
|
|
*/
|
|
const DownloadsView = {
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
//// Functions handling download items in the list
|
|
|
|
/**
|
|
* Maximum number of items shown by the list at any given time.
|
|
*/
|
|
kItemCountLimit: 3,
|
|
|
|
/**
|
|
* Indicates whether we are still loading downloads data asynchronously.
|
|
*/
|
|
loading: false,
|
|
|
|
/**
|
|
* Ordered array of all DownloadsDataItem objects. We need to keep this array
|
|
* because only a limited number of items are shown at once, and if an item
|
|
* that is currently visible is removed from the list, we might need to take
|
|
* another item from the array and make it appear at the bottom.
|
|
*/
|
|
_dataItems: [],
|
|
|
|
/**
|
|
* Object containing the available DownloadsViewItem objects, indexed by their
|
|
* numeric download identifier. There is a limited number of view items in
|
|
* the panel at any given time.
|
|
*/
|
|
_viewItems: {},
|
|
|
|
/**
|
|
* Called when the number of items in the list changes.
|
|
*/
|
|
_itemCountChanged: function DV_itemCountChanged()
|
|
{
|
|
DownloadsCommon.log("The downloads item count has changed - we are tracking",
|
|
this._dataItems.length, "downloads in total.");
|
|
let count = this._dataItems.length;
|
|
let hiddenCount = count - this.kItemCountLimit;
|
|
|
|
if (count > 0) {
|
|
DownloadsCommon.log("Setting the panel's hasdownloads attribute to true.");
|
|
DownloadsPanel.panel.setAttribute("hasdownloads", "true");
|
|
} else {
|
|
DownloadsCommon.log("Removing the panel's hasdownloads attribute.");
|
|
DownloadsPanel.panel.removeAttribute("hasdownloads");
|
|
}
|
|
|
|
// If we've got some hidden downloads, we should activate the
|
|
// DownloadsSummary. The DownloadsSummary will determine whether or not
|
|
// it's appropriate to actually display the summary.
|
|
DownloadsSummary.active = hiddenCount > 0;
|
|
},
|
|
|
|
/**
|
|
* Element corresponding to the list of downloads.
|
|
*/
|
|
get richListBox()
|
|
{
|
|
delete this.richListBox;
|
|
return this.richListBox = document.getElementById("downloadsListBox");
|
|
},
|
|
|
|
/**
|
|
* Element corresponding to the button for showing more downloads.
|
|
*/
|
|
get downloadsHistory()
|
|
{
|
|
delete this.downloadsHistory;
|
|
return this.downloadsHistory = document.getElementById("downloadsHistory");
|
|
},
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
//// Callback functions from DownloadsData
|
|
|
|
/**
|
|
* Called before multiple downloads are about to be loaded.
|
|
*/
|
|
onDataLoadStarting: function DV_onDataLoadStarting()
|
|
{
|
|
DownloadsCommon.log("onDataLoadStarting called for DownloadsView.");
|
|
this.loading = true;
|
|
},
|
|
|
|
/**
|
|
* Called after data loading finished.
|
|
*/
|
|
onDataLoadCompleted: function DV_onDataLoadCompleted()
|
|
{
|
|
DownloadsCommon.log("onDataLoadCompleted called for DownloadsView.");
|
|
|
|
this.loading = false;
|
|
|
|
// We suppressed item count change notifications during the batch load, at
|
|
// this point we should just call the function once.
|
|
this._itemCountChanged();
|
|
|
|
// Notify the panel that all the initially available downloads have been
|
|
// loaded. This ensures that the interface is visible, if still required.
|
|
DownloadsPanel.onViewLoadCompleted();
|
|
},
|
|
|
|
/**
|
|
* Called when the downloads database becomes unavailable (for example,
|
|
* entering Private Browsing Mode). References to existing data should be
|
|
* discarded.
|
|
*/
|
|
onDataInvalidated: function DV_onDataInvalidated()
|
|
{
|
|
DownloadsCommon.log("Downloads data has been invalidated. Cleaning up",
|
|
"DownloadsView.");
|
|
|
|
DownloadsPanel.terminate();
|
|
|
|
// Clear the list by replacing with a shallow copy.
|
|
let emptyView = this.richListBox.cloneNode(false);
|
|
this.richListBox.parentNode.replaceChild(emptyView, this.richListBox);
|
|
this.richListBox = emptyView;
|
|
this._viewItems = {};
|
|
this._dataItems = [];
|
|
},
|
|
|
|
/**
|
|
* Called when a new download data item is available, either during the
|
|
* asynchronous data load or when a new download is started.
|
|
*
|
|
* @param aDataItem
|
|
* DownloadsDataItem object that was just added.
|
|
* @param aNewest
|
|
* When true, indicates that this item is the most recent and should be
|
|
* added in the topmost position. This happens when a new download is
|
|
* started. When false, indicates that the item is the least recent
|
|
* and should be appended. The latter generally happens during the
|
|
* asynchronous data load.
|
|
*/
|
|
onDataItemAdded: function DV_onDataItemAdded(aDataItem, aNewest)
|
|
{
|
|
DownloadsCommon.log("A new download data item was added - aNewest =",
|
|
aNewest);
|
|
|
|
if (aNewest) {
|
|
this._dataItems.unshift(aDataItem);
|
|
} else {
|
|
this._dataItems.push(aDataItem);
|
|
}
|
|
|
|
let itemsNowOverflow = this._dataItems.length > this.kItemCountLimit;
|
|
if (aNewest || !itemsNowOverflow) {
|
|
// The newly added item is visible in the panel and we must add the
|
|
// corresponding element. This is either because it is the first item, or
|
|
// because it was added at the bottom but the list still doesn't overflow.
|
|
this._addViewItem(aDataItem, aNewest);
|
|
}
|
|
if (aNewest && itemsNowOverflow) {
|
|
// If the list overflows, remove the last item from the panel to make room
|
|
// for the new one that we just added at the top.
|
|
this._removeViewItem(this._dataItems[this.kItemCountLimit]);
|
|
}
|
|
|
|
// For better performance during batch loads, don't update the count for
|
|
// every item, because the interface won't be visible until load finishes.
|
|
if (!this.loading) {
|
|
this._itemCountChanged();
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Called when a data item is removed. Ensures that the widget associated
|
|
* with the view item is removed from the user interface.
|
|
*
|
|
* @param aDataItem
|
|
* DownloadsDataItem object that is being removed.
|
|
*/
|
|
onDataItemRemoved: function DV_onDataItemRemoved(aDataItem)
|
|
{
|
|
DownloadsCommon.log("A download data item was removed.");
|
|
|
|
let itemIndex = this._dataItems.indexOf(aDataItem);
|
|
this._dataItems.splice(itemIndex, 1);
|
|
|
|
if (itemIndex < this.kItemCountLimit) {
|
|
// The item to remove is visible in the panel.
|
|
this._removeViewItem(aDataItem);
|
|
if (this._dataItems.length >= this.kItemCountLimit) {
|
|
// Reinsert the next item into the panel.
|
|
this._addViewItem(this._dataItems[this.kItemCountLimit - 1], false);
|
|
}
|
|
}
|
|
|
|
this._itemCountChanged();
|
|
},
|
|
|
|
/**
|
|
* Returns the view item associated with the provided data item for this view.
|
|
*
|
|
* @param aDataItem
|
|
* DownloadsDataItem object for which the view item is requested.
|
|
*
|
|
* @return Object that can be used to notify item status events.
|
|
*/
|
|
getViewItem: function DV_getViewItem(aDataItem)
|
|
{
|
|
// If the item is visible, just return it, otherwise return a mock object
|
|
// that doesn't react to notifications.
|
|
if (aDataItem.downloadGuid in this._viewItems) {
|
|
return this._viewItems[aDataItem.downloadGuid];
|
|
}
|
|
return this._invisibleViewItem;
|
|
},
|
|
|
|
/**
|
|
* Mock DownloadsDataItem object that doesn't react to notifications.
|
|
*/
|
|
_invisibleViewItem: Object.freeze({
|
|
onStateChange: function () { },
|
|
onProgressChange: function () { }
|
|
}),
|
|
|
|
/**
|
|
* Creates a new view item associated with the specified data item, and adds
|
|
* it to the top or the bottom of the list.
|
|
*/
|
|
_addViewItem: function DV_addViewItem(aDataItem, aNewest)
|
|
{
|
|
DownloadsCommon.log("Adding a new DownloadsViewItem to the downloads list.",
|
|
"aNewest =", aNewest);
|
|
|
|
let element = document.createElement("richlistitem");
|
|
let viewItem = new DownloadsViewItem(aDataItem, element);
|
|
this._viewItems[aDataItem.downloadGuid] = viewItem;
|
|
if (aNewest) {
|
|
this.richListBox.insertBefore(element, this.richListBox.firstChild);
|
|
} else {
|
|
this.richListBox.appendChild(element);
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Removes the view item associated with the specified data item.
|
|
*/
|
|
_removeViewItem: function DV_removeViewItem(aDataItem)
|
|
{
|
|
DownloadsCommon.log("Removing a DownloadsViewItem from the downloads list.");
|
|
let element = this.getViewItem(aDataItem)._element;
|
|
let previousSelectedIndex = this.richListBox.selectedIndex;
|
|
this.richListBox.removeChild(element);
|
|
if (previousSelectedIndex != -1) {
|
|
this.richListBox.selectedIndex = Math.min(previousSelectedIndex,
|
|
this.richListBox.itemCount - 1);
|
|
}
|
|
delete this._viewItems[aDataItem.downloadGuid];
|
|
},
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
//// User interface event functions
|
|
|
|
/**
|
|
* Helper function to do commands on a specific download item.
|
|
*
|
|
* @param aEvent
|
|
* Event object for the event being handled. If the event target is
|
|
* not a richlistitem that represents a download, this function will
|
|
* walk up the parent nodes until it finds a DOM node that is.
|
|
* @param aCommand
|
|
* The command to be performed.
|
|
*/
|
|
onDownloadCommand: function DV_onDownloadCommand(aEvent, aCommand)
|
|
{
|
|
let target = aEvent.target;
|
|
while (target.nodeName != "richlistitem") {
|
|
target = target.parentNode;
|
|
}
|
|
new DownloadsViewItemController(target).doCommand(aCommand);
|
|
},
|
|
|
|
onDownloadClick: function DV_onDownloadClick(aEvent)
|
|
{
|
|
// Handle primary clicks only, and exclude the action button.
|
|
if (aEvent.button == 0 &&
|
|
!aEvent.originalTarget.hasAttribute("oncommand")) {
|
|
goDoCommand("downloadsCmd_open");
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Handles keypress events on a download item.
|
|
*/
|
|
onDownloadKeyPress: function DV_onDownloadKeyPress(aEvent)
|
|
{
|
|
// Pressing the key on buttons should not invoke the action because the
|
|
// event has already been handled by the button itself.
|
|
if (aEvent.originalTarget.hasAttribute("command") ||
|
|
aEvent.originalTarget.hasAttribute("oncommand")) {
|
|
return;
|
|
}
|
|
|
|
if (aEvent.charCode == " ".charCodeAt(0)) {
|
|
goDoCommand("downloadsCmd_pauseResume");
|
|
return;
|
|
}
|
|
|
|
if (aEvent.keyCode == KeyEvent.DOM_VK_ENTER ||
|
|
aEvent.keyCode == KeyEvent.DOM_VK_RETURN) {
|
|
goDoCommand("downloadsCmd_doDefault");
|
|
}
|
|
},
|
|
|
|
|
|
/**
|
|
* Mouse listeners to handle selection on hover.
|
|
*/
|
|
onDownloadMouseOver: function DV_onDownloadMouseOver(aEvent)
|
|
{
|
|
if (aEvent.originalTarget.parentNode == this.richListBox)
|
|
this.richListBox.selectedItem = aEvent.originalTarget;
|
|
},
|
|
onDownloadMouseOut: function DV_onDownloadMouseOut(aEvent)
|
|
{
|
|
if (aEvent.originalTarget.parentNode == this.richListBox) {
|
|
// If the destination element is outside of the richlistitem, clear the
|
|
// selection.
|
|
let element = aEvent.relatedTarget;
|
|
while (element && element != aEvent.originalTarget) {
|
|
element = element.parentNode;
|
|
}
|
|
if (!element)
|
|
this.richListBox.selectedIndex = -1;
|
|
}
|
|
},
|
|
|
|
onDownloadContextMenu: function DV_onDownloadContextMenu(aEvent)
|
|
{
|
|
let element = this.richListBox.selectedItem;
|
|
if (!element) {
|
|
return;
|
|
}
|
|
|
|
DownloadsViewController.updateCommands();
|
|
|
|
// Set the state attribute so that only the appropriate items are displayed.
|
|
let contextMenu = document.getElementById("downloadsContextMenu");
|
|
contextMenu.setAttribute("state", element.getAttribute("state"));
|
|
},
|
|
|
|
onDownloadDragStart: function DV_onDownloadDragStart(aEvent)
|
|
{
|
|
let element = this.richListBox.selectedItem;
|
|
if (!element) {
|
|
return;
|
|
}
|
|
|
|
let controller = new DownloadsViewItemController(element);
|
|
let localFile = controller.dataItem.localFile;
|
|
if (!localFile.exists()) {
|
|
return;
|
|
}
|
|
|
|
let dataTransfer = aEvent.dataTransfer;
|
|
dataTransfer.mozSetDataAt("application/x-moz-file", localFile, 0);
|
|
dataTransfer.effectAllowed = "copyMove";
|
|
var url = Services.io.newFileURI(localFile).spec;
|
|
dataTransfer.setData("text/uri-list", url);
|
|
dataTransfer.setData("text/plain", url);
|
|
dataTransfer.addElement(element);
|
|
|
|
aEvent.stopPropagation();
|
|
}
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
//// DownloadsViewItem
|
|
|
|
/**
|
|
* Builds and updates a single item in the downloads list widget, responding to
|
|
* changes in the download state and real-time data.
|
|
*
|
|
* @param aDataItem
|
|
* DownloadsDataItem to be associated with the view item.
|
|
* @param aElement
|
|
* XUL element corresponding to the single download item in the view.
|
|
*/
|
|
function DownloadsViewItem(aDataItem, aElement)
|
|
{
|
|
this._element = aElement;
|
|
this.dataItem = aDataItem;
|
|
|
|
this.lastEstimatedSecondsLeft = Infinity;
|
|
|
|
// Set the URI that represents the correct icon for the target file. As soon
|
|
// as bug 239948 comment 12 is handled, the "file" property will be always a
|
|
// file URL rather than a file name. At that point we should remove the "//"
|
|
// (double slash) from the icon URI specification (see test_moz_icon_uri.js).
|
|
this.image = "moz-icon://" + this.dataItem.file + "?size=32";
|
|
|
|
let attributes = {
|
|
"type": "download",
|
|
"class": "download-state",
|
|
"id": "downloadsItem_" + this.dataItem.downloadGuid,
|
|
"downloadGuid": this.dataItem.downloadGuid,
|
|
"state": this.dataItem.state,
|
|
"progress": this.dataItem.inProgress ? this.dataItem.percentComplete : 100,
|
|
"target": this.dataItem.target,
|
|
"image": this.image
|
|
};
|
|
|
|
for (let attributeName in attributes) {
|
|
this._element.setAttribute(attributeName, attributes[attributeName]);
|
|
}
|
|
|
|
// Initialize more complex attributes.
|
|
this._updateProgress();
|
|
this._updateStatusLine();
|
|
this.verifyTargetExists();
|
|
}
|
|
|
|
DownloadsViewItem.prototype = {
|
|
/**
|
|
* The DownloadDataItem associated with this view item.
|
|
*/
|
|
dataItem: null,
|
|
|
|
/**
|
|
* The XUL element corresponding to the associated richlistbox item.
|
|
*/
|
|
_element: null,
|
|
|
|
/**
|
|
* The inner XUL element for the progress bar, or null if not available.
|
|
*/
|
|
_progressElement: null,
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
//// Callback functions from DownloadsData
|
|
|
|
/**
|
|
* Called when the download state might have changed. Sometimes the state of
|
|
* the download might be the same as before, if the data layer received
|
|
* multiple events for the same download.
|
|
*/
|
|
onStateChange: function DVI_onStateChange(aOldState)
|
|
{
|
|
// If a download just finished successfully, it means that the target file
|
|
// now exists and we can extract its specific icon. To ensure that the icon
|
|
// is reloaded, we must change the URI used by the XUL image element, for
|
|
// example by adding a query parameter. Since this URI has a "moz-icon"
|
|
// scheme, this only works if we add one of the parameters explicitly
|
|
// supported by the nsIMozIconURI interface.
|
|
if (aOldState != Ci.nsIDownloadManager.DOWNLOAD_FINISHED &&
|
|
aOldState != this.dataItem.state) {
|
|
this._element.setAttribute("image", this.image + "&state=normal");
|
|
|
|
// We assume the existence of the target of a download that just completed
|
|
// successfully, without checking the condition in the background. If the
|
|
// panel is already open, this will take effect immediately. If the panel
|
|
// is opened later, a new background existence check will be performed.
|
|
this._element.setAttribute("exists", "true");
|
|
}
|
|
|
|
// Update the user interface after switching states.
|
|
this._element.setAttribute("state", this.dataItem.state);
|
|
this._updateProgress();
|
|
this._updateStatusLine();
|
|
},
|
|
|
|
/**
|
|
* Called when the download progress has changed.
|
|
*/
|
|
onProgressChange: function DVI_onProgressChange() {
|
|
this._updateProgress();
|
|
this._updateStatusLine();
|
|
},
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
//// Functions for updating the user interface
|
|
|
|
/**
|
|
* Updates the progress bar.
|
|
*/
|
|
_updateProgress: function DVI_updateProgress() {
|
|
if (this.dataItem.starting) {
|
|
// Before the download starts, the progress meter has its initial value.
|
|
this._element.setAttribute("progressmode", "normal");
|
|
this._element.setAttribute("progress", "0");
|
|
} else if (this.dataItem.state == Ci.nsIDownloadManager.DOWNLOAD_SCANNING ||
|
|
this.dataItem.percentComplete == -1) {
|
|
// We might not know the progress of a running download, and we don't know
|
|
// the remaining time during the malware scanning phase.
|
|
this._element.setAttribute("progressmode", "undetermined");
|
|
} else {
|
|
// This is a running download of which we know the progress.
|
|
this._element.setAttribute("progressmode", "normal");
|
|
this._element.setAttribute("progress", this.dataItem.percentComplete);
|
|
}
|
|
|
|
// Find the progress element as soon as the download binding is accessible.
|
|
if (!this._progressElement) {
|
|
this._progressElement =
|
|
document.getAnonymousElementByAttribute(this._element, "anonid",
|
|
"progressmeter");
|
|
}
|
|
|
|
// Dispatch the ValueChange event for accessibility, if possible.
|
|
if (this._progressElement) {
|
|
let event = document.createEvent("Events");
|
|
event.initEvent("ValueChange", true, true);
|
|
this._progressElement.dispatchEvent(event);
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Updates the main status line, including bytes transferred, bytes total,
|
|
* download rate, and time remaining.
|
|
*/
|
|
_updateStatusLine: function DVI_updateStatusLine() {
|
|
const nsIDM = Ci.nsIDownloadManager;
|
|
|
|
let status = "";
|
|
let statusTip = "";
|
|
|
|
if (this.dataItem.paused) {
|
|
let transfer = DownloadUtils.getTransferTotal(this.dataItem.currBytes,
|
|
this.dataItem.maxBytes);
|
|
|
|
// We use the same XUL label to display both the state and the amount
|
|
// transferred, for example "Paused - 1.1 MB".
|
|
status = DownloadsCommon.strings.statusSeparatorBeforeNumber(
|
|
DownloadsCommon.strings.statePaused,
|
|
transfer);
|
|
} else if (this.dataItem.state == nsIDM.DOWNLOAD_DOWNLOADING) {
|
|
// We don't show the rate for each download in order to reduce clutter.
|
|
// The remaining time per download is likely enough information for the
|
|
// panel.
|
|
[status] =
|
|
DownloadUtils.getDownloadStatusNoRate(this.dataItem.currBytes,
|
|
this.dataItem.maxBytes,
|
|
this.dataItem.speed,
|
|
this.lastEstimatedSecondsLeft);
|
|
|
|
// We are, however, OK with displaying the rate in the tooltip.
|
|
let newEstimatedSecondsLeft;
|
|
[statusTip, newEstimatedSecondsLeft] =
|
|
DownloadUtils.getDownloadStatus(this.dataItem.currBytes,
|
|
this.dataItem.maxBytes,
|
|
this.dataItem.speed,
|
|
this.lastEstimatedSecondsLeft);
|
|
this.lastEstimatedSecondsLeft = newEstimatedSecondsLeft;
|
|
} else if (this.dataItem.starting) {
|
|
status = DownloadsCommon.strings.stateStarting;
|
|
} else if (this.dataItem.state == nsIDM.DOWNLOAD_SCANNING) {
|
|
status = DownloadsCommon.strings.stateScanning;
|
|
} else if (!this.dataItem.inProgress) {
|
|
let stateLabel = function () {
|
|
let s = DownloadsCommon.strings;
|
|
switch (this.dataItem.state) {
|
|
case nsIDM.DOWNLOAD_FAILED: return s.stateFailed;
|
|
case nsIDM.DOWNLOAD_CANCELED: return s.stateCanceled;
|
|
case nsIDM.DOWNLOAD_BLOCKED_PARENTAL: return s.stateBlockedParentalControls;
|
|
case nsIDM.DOWNLOAD_BLOCKED_POLICY: return s.stateBlockedPolicy;
|
|
case nsIDM.DOWNLOAD_DIRTY: return s.stateDirty;
|
|
case nsIDM.DOWNLOAD_FINISHED: return this._fileSizeText;
|
|
}
|
|
return null;
|
|
}.apply(this);
|
|
|
|
let [displayHost, fullHost] =
|
|
DownloadUtils.getURIHost(this.dataItem.referrer || this.dataItem.uri);
|
|
|
|
let end = new Date(this.dataItem.endTime);
|
|
let [displayDate, fullDate] = DownloadUtils.getReadableDates(end);
|
|
|
|
// We use the same XUL label to display the state, the host name, and the
|
|
// end time, for example "Canceled - 222.net - 11:15" or "1.1 MB -
|
|
// website2.com - Yesterday". We show the full host and the complete date
|
|
// in the tooltip.
|
|
let firstPart = DownloadsCommon.strings.statusSeparator(stateLabel,
|
|
displayHost);
|
|
status = DownloadsCommon.strings.statusSeparator(firstPart, displayDate);
|
|
statusTip = DownloadsCommon.strings.statusSeparator(fullHost, fullDate);
|
|
}
|
|
|
|
this._element.setAttribute("status", status);
|
|
this._element.setAttribute("statusTip", statusTip || status);
|
|
},
|
|
|
|
/**
|
|
* Localized string representing the total size of completed downloads, for
|
|
* example "1.5 MB" or "Unknown size".
|
|
*/
|
|
get _fileSizeText()
|
|
{
|
|
// Display the file size, but show "Unknown" for negative sizes.
|
|
let fileSize = this.dataItem.maxBytes;
|
|
if (fileSize < 0) {
|
|
return DownloadsCommon.strings.sizeUnknown;
|
|
}
|
|
let [size, unit] = DownloadUtils.convertByteUnits(fileSize);
|
|
return DownloadsCommon.strings.sizeWithUnits(size, unit);
|
|
},
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
//// Functions called by the panel
|
|
|
|
/**
|
|
* Starts checking whether the target file of a finished download is still
|
|
* available on disk, and sets an attribute that controls how the item is
|
|
* presented visually.
|
|
*
|
|
* The existence check is executed on a background thread.
|
|
*/
|
|
verifyTargetExists: function DVI_verifyTargetExists() {
|
|
// We don't need to check if the download is not finished successfully.
|
|
if (!this.dataItem.openable) {
|
|
return;
|
|
}
|
|
|
|
OS.File.exists(this.dataItem.localFile.path).then(
|
|
function DVI_RTE_onSuccess(aExists) {
|
|
if (aExists) {
|
|
this._element.setAttribute("exists", "true");
|
|
} else {
|
|
this._element.removeAttribute("exists");
|
|
}
|
|
}.bind(this), Cu.reportError);
|
|
},
|
|
};
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
//// DownloadsViewController
|
|
|
|
/**
|
|
* Handles part of the user interaction events raised by the downloads list
|
|
* widget, in particular the "commands" that apply to multiple items, and
|
|
* dispatches the commands that apply to individual items.
|
|
*/
|
|
const DownloadsViewController = {
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
//// Initialization and termination
|
|
|
|
initialize: function DVC_initialize()
|
|
{
|
|
window.controllers.insertControllerAt(0, this);
|
|
},
|
|
|
|
terminate: function DVC_terminate()
|
|
{
|
|
window.controllers.removeController(this);
|
|
},
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
//// nsIController
|
|
|
|
supportsCommand: function DVC_supportsCommand(aCommand)
|
|
{
|
|
// Firstly, determine if this is a command that we can handle.
|
|
if (!(aCommand in this.commands) &&
|
|
!(aCommand in DownloadsViewItemController.prototype.commands)) {
|
|
return false;
|
|
}
|
|
// Secondly, determine if focus is on a control in the downloads list.
|
|
let element = document.commandDispatcher.focusedElement;
|
|
while (element && element != DownloadsView.richListBox) {
|
|
element = element.parentNode;
|
|
}
|
|
// We should handle the command only if the downloads list is among the
|
|
// ancestors of the focused element.
|
|
return !!element;
|
|
},
|
|
|
|
isCommandEnabled: function DVC_isCommandEnabled(aCommand)
|
|
{
|
|
// Handle commands that are not selection-specific.
|
|
if (aCommand == "downloadsCmd_clearList") {
|
|
return DownloadsCommon.getData(window).canRemoveFinished;
|
|
}
|
|
|
|
// Other commands are selection-specific.
|
|
let element = DownloadsView.richListBox.selectedItem;
|
|
return element &&
|
|
new DownloadsViewItemController(element).isCommandEnabled(aCommand);
|
|
},
|
|
|
|
doCommand: function DVC_doCommand(aCommand)
|
|
{
|
|
// If this command is not selection-specific, execute it.
|
|
if (aCommand in this.commands) {
|
|
this.commands[aCommand].apply(this);
|
|
return;
|
|
}
|
|
|
|
// Other commands are selection-specific.
|
|
let element = DownloadsView.richListBox.selectedItem;
|
|
if (element) {
|
|
// The doCommand function also checks if the command is enabled.
|
|
new DownloadsViewItemController(element).doCommand(aCommand);
|
|
}
|
|
},
|
|
|
|
onEvent: function () { },
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
//// Other functions
|
|
|
|
updateCommands: function DVC_updateCommands()
|
|
{
|
|
Object.keys(this.commands).forEach(goUpdateCommand);
|
|
Object.keys(DownloadsViewItemController.prototype.commands)
|
|
.forEach(goUpdateCommand);
|
|
},
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
//// Selection-independent commands
|
|
|
|
/**
|
|
* This object contains one key for each command that operates regardless of
|
|
* the currently selected item in the list.
|
|
*/
|
|
commands: {
|
|
downloadsCmd_clearList: function DVC_downloadsCmd_clearList()
|
|
{
|
|
DownloadsCommon.getData(window).removeFinished();
|
|
}
|
|
}
|
|
};
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
//// DownloadsViewItemController
|
|
|
|
/**
|
|
* Handles all the user interaction events, in particular the "commands",
|
|
* related to a single item in the downloads list widgets.
|
|
*/
|
|
function DownloadsViewItemController(aElement) {
|
|
let downloadGuid = aElement.getAttribute("downloadGuid");
|
|
this.dataItem = DownloadsCommon.getData(window).dataItems[downloadGuid];
|
|
}
|
|
|
|
DownloadsViewItemController.prototype = {
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
//// Command dispatching
|
|
|
|
/**
|
|
* The DownloadDataItem controlled by this object.
|
|
*/
|
|
dataItem: null,
|
|
|
|
isCommandEnabled: function DVIC_isCommandEnabled(aCommand)
|
|
{
|
|
switch (aCommand) {
|
|
case "downloadsCmd_open": {
|
|
return this.dataItem.openable && this.dataItem.localFile.exists();
|
|
}
|
|
case "downloadsCmd_show": {
|
|
return this.dataItem.localFile.exists() ||
|
|
this.dataItem.partFile.exists();
|
|
}
|
|
case "downloadsCmd_pauseResume":
|
|
return this.dataItem.inProgress && this.dataItem.resumable;
|
|
case "downloadsCmd_retry":
|
|
return this.dataItem.canRetry;
|
|
case "downloadsCmd_openReferrer":
|
|
return !!this.dataItem.referrer;
|
|
case "cmd_delete":
|
|
case "downloadsCmd_cancel":
|
|
case "downloadsCmd_copyLocation":
|
|
case "downloadsCmd_doDefault":
|
|
return true;
|
|
}
|
|
return false;
|
|
},
|
|
|
|
doCommand: function DVIC_doCommand(aCommand)
|
|
{
|
|
if (this.isCommandEnabled(aCommand)) {
|
|
this.commands[aCommand].apply(this);
|
|
}
|
|
},
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
//// Item commands
|
|
|
|
/**
|
|
* This object contains one key for each command that operates on this item.
|
|
*
|
|
* In commands, the "this" identifier points to the controller item.
|
|
*/
|
|
commands: {
|
|
cmd_delete: function DVIC_cmd_delete()
|
|
{
|
|
this.dataItem.remove();
|
|
PlacesUtils.bhistory.removePage(NetUtil.newURI(this.dataItem.uri));
|
|
},
|
|
|
|
downloadsCmd_cancel: function DVIC_downloadsCmd_cancel()
|
|
{
|
|
this.dataItem.cancel();
|
|
},
|
|
|
|
downloadsCmd_open: function DVIC_downloadsCmd_open()
|
|
{
|
|
this.dataItem.openLocalFile(window);
|
|
// We explicitly close the panel here to give the user the feedback that
|
|
// their click has been received, and we're handling the action.
|
|
// Otherwise, we'd have to wait for the file-type handler to execute
|
|
// before the panel would close. This also helps to prevent the user from
|
|
// accidentally opening a file several times.
|
|
DownloadsPanel.hidePanel();
|
|
},
|
|
|
|
downloadsCmd_show: function DVIC_downloadsCmd_show()
|
|
{
|
|
this.dataItem.showLocalFile();
|
|
|
|
// We explicitly close the panel here to give the user the feedback that
|
|
// their click has been received, and we're handling the action.
|
|
// Otherwise, we'd have to wait for the operating system file manager
|
|
// window to open before the panel closed. This also helps to prevent the
|
|
// user from opening the containing folder several times.
|
|
DownloadsPanel.hidePanel();
|
|
},
|
|
|
|
downloadsCmd_pauseResume: function DVIC_downloadsCmd_pauseResume()
|
|
{
|
|
this.dataItem.togglePauseResume();
|
|
},
|
|
|
|
downloadsCmd_retry: function DVIC_downloadsCmd_retry()
|
|
{
|
|
this.dataItem.retry();
|
|
},
|
|
|
|
downloadsCmd_openReferrer: function DVIC_downloadsCmd_openReferrer()
|
|
{
|
|
openURL(this.dataItem.referrer);
|
|
},
|
|
|
|
downloadsCmd_copyLocation: function DVIC_downloadsCmd_copyLocation()
|
|
{
|
|
let clipboard = Cc["@mozilla.org/widget/clipboardhelper;1"]
|
|
.getService(Ci.nsIClipboardHelper);
|
|
clipboard.copyString(this.dataItem.uri, document);
|
|
},
|
|
|
|
downloadsCmd_doDefault: function DVIC_downloadsCmd_doDefault()
|
|
{
|
|
const nsIDM = Ci.nsIDownloadManager;
|
|
|
|
// Determine the default command for the current item.
|
|
let defaultCommand = function () {
|
|
switch (this.dataItem.state) {
|
|
case nsIDM.DOWNLOAD_NOTSTARTED: return "downloadsCmd_cancel";
|
|
case nsIDM.DOWNLOAD_FINISHED: return "downloadsCmd_open";
|
|
case nsIDM.DOWNLOAD_FAILED: return "downloadsCmd_retry";
|
|
case nsIDM.DOWNLOAD_CANCELED: return "downloadsCmd_retry";
|
|
case nsIDM.DOWNLOAD_PAUSED: return "downloadsCmd_pauseResume";
|
|
case nsIDM.DOWNLOAD_QUEUED: return "downloadsCmd_cancel";
|
|
case nsIDM.DOWNLOAD_BLOCKED_PARENTAL: return "downloadsCmd_openReferrer";
|
|
case nsIDM.DOWNLOAD_SCANNING: return "downloadsCmd_show";
|
|
case nsIDM.DOWNLOAD_DIRTY: return "downloadsCmd_openReferrer";
|
|
case nsIDM.DOWNLOAD_BLOCKED_POLICY: return "downloadsCmd_openReferrer";
|
|
}
|
|
return "";
|
|
}.apply(this);
|
|
if (defaultCommand && this.isCommandEnabled(defaultCommand))
|
|
this.doCommand(defaultCommand);
|
|
}
|
|
}
|
|
};
|
|
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
//// DownloadsSummary
|
|
|
|
/**
|
|
* Manages the summary at the bottom of the downloads panel list if the number
|
|
* of items in the list exceeds the panels limit.
|
|
*/
|
|
const DownloadsSummary = {
|
|
|
|
/**
|
|
* Sets the active state of the summary. When active, the summary subscribes
|
|
* to the DownloadsCommon DownloadsSummaryData singleton.
|
|
*
|
|
* @param aActive
|
|
* Set to true to activate the summary.
|
|
*/
|
|
set active(aActive)
|
|
{
|
|
if (aActive == this._active || !this._summaryNode) {
|
|
return this._active;
|
|
}
|
|
if (aActive) {
|
|
DownloadsCommon.getSummary(window, DownloadsView.kItemCountLimit)
|
|
.refreshView(this);
|
|
} else {
|
|
DownloadsFooter.showingSummary = false;
|
|
}
|
|
|
|
return this._active = aActive;
|
|
},
|
|
|
|
/**
|
|
* Returns the active state of the downloads summary.
|
|
*/
|
|
get active() this._active,
|
|
|
|
_active: false,
|
|
|
|
/**
|
|
* Sets whether or not we show the progress bar.
|
|
*
|
|
* @param aShowingProgress
|
|
* True if we should show the progress bar.
|
|
*/
|
|
set showingProgress(aShowingProgress)
|
|
{
|
|
if (aShowingProgress) {
|
|
this._summaryNode.setAttribute("inprogress", "true");
|
|
} else {
|
|
this._summaryNode.removeAttribute("inprogress");
|
|
}
|
|
// If progress isn't being shown, then we simply do not show the summary.
|
|
return DownloadsFooter.showingSummary = aShowingProgress;
|
|
},
|
|
|
|
/**
|
|
* Sets the amount of progress that is visible in the progress bar.
|
|
*
|
|
* @param aValue
|
|
* A value between 0 and 100 to represent the progress of the
|
|
* summarized downloads.
|
|
*/
|
|
set percentComplete(aValue)
|
|
{
|
|
if (this._progressNode) {
|
|
this._progressNode.setAttribute("value", aValue);
|
|
}
|
|
return aValue;
|
|
},
|
|
|
|
/**
|
|
* Sets the description for the download summary.
|
|
*
|
|
* @param aValue
|
|
* A string representing the description of the summarized
|
|
* downloads.
|
|
*/
|
|
set description(aValue)
|
|
{
|
|
if (this._descriptionNode) {
|
|
this._descriptionNode.setAttribute("value", aValue);
|
|
this._descriptionNode.setAttribute("tooltiptext", aValue);
|
|
}
|
|
return aValue;
|
|
},
|
|
|
|
/**
|
|
* Sets the details for the download summary, such as the time remaining,
|
|
* the amount of bytes transferred, etc.
|
|
*
|
|
* @param aValue
|
|
* A string representing the details of the summarized
|
|
* downloads.
|
|
*/
|
|
set details(aValue)
|
|
{
|
|
if (this._detailsNode) {
|
|
this._detailsNode.setAttribute("value", aValue);
|
|
this._detailsNode.setAttribute("tooltiptext", aValue);
|
|
}
|
|
return aValue;
|
|
},
|
|
|
|
/**
|
|
* Focuses the root element of the summary.
|
|
*/
|
|
focus: function()
|
|
{
|
|
if (this._summaryNode) {
|
|
this._summaryNode.focus();
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Respond to keydown events on the Downloads Summary node.
|
|
*
|
|
* @param aEvent
|
|
* The keydown event being handled.
|
|
*/
|
|
onKeyDown: function DS_onKeyDown(aEvent)
|
|
{
|
|
if (aEvent.charCode == " ".charCodeAt(0) ||
|
|
aEvent.keyCode == KeyEvent.DOM_VK_ENTER ||
|
|
aEvent.keyCode == KeyEvent.DOM_VK_RETURN) {
|
|
DownloadsPanel.showDownloadsHistory();
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Respond to click events on the Downloads Summary node.
|
|
*
|
|
* @param aEvent
|
|
* The click event being handled.
|
|
*/
|
|
onClick: function DS_onClick(aEvent)
|
|
{
|
|
DownloadsPanel.showDownloadsHistory();
|
|
},
|
|
|
|
/**
|
|
* Element corresponding to the root of the downloads summary.
|
|
*/
|
|
get _summaryNode()
|
|
{
|
|
let node = document.getElementById("downloadsSummary");
|
|
if (!node) {
|
|
return null;
|
|
}
|
|
delete this._summaryNode;
|
|
return this._summaryNode = node;
|
|
},
|
|
|
|
/**
|
|
* Element corresponding to the progress bar in the downloads summary.
|
|
*/
|
|
get _progressNode()
|
|
{
|
|
let node = document.getElementById("downloadsSummaryProgress");
|
|
if (!node) {
|
|
return null;
|
|
}
|
|
delete this._progressNode;
|
|
return this._progressNode = node;
|
|
},
|
|
|
|
/**
|
|
* Element corresponding to the main description of the downloads
|
|
* summary.
|
|
*/
|
|
get _descriptionNode()
|
|
{
|
|
let node = document.getElementById("downloadsSummaryDescription");
|
|
if (!node) {
|
|
return null;
|
|
}
|
|
delete this._descriptionNode;
|
|
return this._descriptionNode = node;
|
|
},
|
|
|
|
/**
|
|
* Element corresponding to the secondary description of the downloads
|
|
* summary.
|
|
*/
|
|
get _detailsNode()
|
|
{
|
|
let node = document.getElementById("downloadsSummaryDetails");
|
|
if (!node) {
|
|
return null;
|
|
}
|
|
delete this._detailsNode;
|
|
return this._detailsNode = node;
|
|
}
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
//// DownloadsFooter
|
|
|
|
/**
|
|
* Manages events sent to to the footer vbox, which contains both the
|
|
* DownloadsSummary as well as the "Show All Downloads" button.
|
|
*/
|
|
const DownloadsFooter = {
|
|
|
|
/**
|
|
* Focuses the appropriate element within the footer. If the summary
|
|
* is visible, focus it. If not, focus the "Show All Downloads"
|
|
* button.
|
|
*/
|
|
focus: function DF_focus()
|
|
{
|
|
if (this._showingSummary) {
|
|
DownloadsSummary.focus();
|
|
} else {
|
|
DownloadsView.downloadsHistory.focus();
|
|
}
|
|
},
|
|
|
|
_showingSummary: false,
|
|
|
|
/**
|
|
* Sets whether or not the Downloads Summary should be displayed in the
|
|
* footer. If not, the "Show All Downloads" button is shown instead.
|
|
*/
|
|
set showingSummary(aValue)
|
|
{
|
|
if (this._footerNode) {
|
|
if (aValue) {
|
|
this._footerNode.setAttribute("showingsummary", "true");
|
|
} else {
|
|
this._footerNode.removeAttribute("showingsummary");
|
|
}
|
|
this._showingSummary = aValue;
|
|
}
|
|
return aValue;
|
|
},
|
|
|
|
/**
|
|
* Element corresponding to the footer of the downloads panel.
|
|
*/
|
|
get _footerNode()
|
|
{
|
|
let node = document.getElementById("downloadsFooter");
|
|
if (!node) {
|
|
return null;
|
|
}
|
|
delete this._footerNode;
|
|
return this._footerNode = node;
|
|
}
|
|
};
|