gecko-dev/toolkit/components/downloads/nsDownloadManagerUI.js
2012-05-21 12:12:37 +01:00

122 lines
4.0 KiB
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/. */
Components.utils.import("resource://gre/modules/XPCOMUtils.jsm");
////////////////////////////////////////////////////////////////////////////////
//// Constants
const Cc = Components.classes;
const Ci = Components.interfaces;
const Cr = Components.results;
const DOWNLOAD_MANAGER_URL = "chrome://mozapps/content/downloads/downloads.xul";
const PREF_FLASH_COUNT = "browser.download.manager.flashCount";
////////////////////////////////////////////////////////////////////////////////
//// nsDownloadManagerUI class
function nsDownloadManagerUI() {}
nsDownloadManagerUI.prototype = {
classID: Components.ID("7dfdf0d1-aff6-4a34-bad1-d0fe74601642"),
//////////////////////////////////////////////////////////////////////////////
//// nsIDownloadManagerUI
show: function show(aWindowContext, aID, aReason)
{
if (!aReason)
aReason = Ci.nsIDownloadManagerUI.REASON_USER_INTERACTED;
// First we see if it is already visible
let window = this.recentWindow;
if (window) {
window.focus();
// If we are being asked to show again, with a user interaction reason,
// set the appropriate variable.
if (aReason == Ci.nsIDownloadManagerUI.REASON_USER_INTERACTED)
window.gUserInteracted = true;
return;
}
let parent = null;
// We try to get a window to use as the parent here. If we don't have one,
// the download manager will close immediately after opening if the pref
// browser.download.manager.closeWhenDone is set to true.
try {
if (aWindowContext)
parent = aWindowContext.getInterface(Ci.nsIDOMWindow);
} catch (e) { /* it's OK to not have a parent window */ }
// We pass the download manager and the nsIDownload we want selected (if any)
var params = Cc["@mozilla.org/array;1"].createInstance(Ci.nsIMutableArray);
// Don't fail if our passed in ID is invalid
var download = null;
try {
let dm = Cc["@mozilla.org/download-manager;1"].
getService(Ci.nsIDownloadManager);
download = dm.getDownload(aID);
} catch (ex) {}
params.appendElement(download, false);
// Pass in the reason as well
let reason = Cc["@mozilla.org/supports-PRInt16;1"].
createInstance(Ci.nsISupportsPRInt16);
reason.data = aReason;
params.appendElement(reason, false);
var ww = Cc["@mozilla.org/embedcomp/window-watcher;1"].
getService(Ci.nsIWindowWatcher);
ww.openWindow(parent,
DOWNLOAD_MANAGER_URL,
"Download:Manager",
"chrome,dialog=no,resizable",
params);
},
get visible() {
return (null != this.recentWindow);
},
getAttention: function getAttention()
{
if (!this.visible)
throw Cr.NS_ERROR_UNEXPECTED;
var prefs = Cc["@mozilla.org/preferences-service;1"].
getService(Ci.nsIPrefBranch);
// This preference may not be set, so defaulting to two.
let flashCount = 2;
try {
flashCount = prefs.getIntPref(PREF_FLASH_COUNT);
} catch (e) { }
var win = this.recentWindow.QueryInterface(Ci.nsIDOMChromeWindow);
win.getAttentionWithCycleCount(flashCount);
},
//////////////////////////////////////////////////////////////////////////////
//// nsDownloadManagerUI
get recentWindow() {
var wm = Cc["@mozilla.org/appshell/window-mediator;1"].
getService(Ci.nsIWindowMediator);
return wm.getMostRecentWindow("Download:Manager");
},
//////////////////////////////////////////////////////////////////////////////
//// nsISupports
QueryInterface: XPCOMUtils.generateQI([Ci.nsIDownloadManagerUI])
};
////////////////////////////////////////////////////////////////////////////////
//// Module
let components = [nsDownloadManagerUI];
var NSGetFactory = XPCOMUtils.generateNSGetFactory(components);