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249 lines
9.5 KiB
JavaScript
249 lines
9.5 KiB
JavaScript
/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is HelperApp Launcher Dialog.
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*
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* The Initial Developer of the Original Code is Mozilla Foundation.
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* Portions created by the Initial Developer are Copyright (C) 2009
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Mark Finkle <mfinkle@mozilla.com>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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const Cc = Components.classes;
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const Ci = Components.interfaces;
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const Cu = Components.utils;
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const Cr = Components.results;
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const PREF_BD_USEDOWNLOADDIR = "browser.download.useDownloadDir";
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const URI_GENERIC_ICON_DOWNLOAD = "drawable://alertdownloads";
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Cu.import("resource://gre/modules/XPCOMUtils.jsm");
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Cu.import("resource://gre/modules/Services.jsm");
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// -----------------------------------------------------------------------
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// HelperApp Launcher Dialog
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// -----------------------------------------------------------------------
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function HelperAppLauncherDialog() { }
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HelperAppLauncherDialog.prototype = {
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classID: Components.ID("{e9d277a0-268a-4ec2-bb8c-10fdf3e44611}"),
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QueryInterface: XPCOMUtils.generateQI([Ci.nsIHelperAppLauncherDialog]),
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show: function hald_show(aLauncher, aContext, aReason) {
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// Check to see if we can open this file or not
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if (aLauncher.MIMEInfo.hasDefaultHandler) {
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aLauncher.MIMEInfo.preferredAction = Ci.nsIMIMEInfo.useSystemDefault;
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aLauncher.launchWithApplication(null, false);
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} else {
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let wasClicked = false;
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let listener = {
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observe: function(aSubject, aTopic, aData) {
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if (aTopic == "alertclickcallback") {
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wasClicked = true;
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let win = Cc["@mozilla.org/appshell/window-mediator;1"].getService(Ci.nsIWindowMediator).getMostRecentWindow("navigator:browser");
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if (win)
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win.BrowserUI.showPanel("downloads-container");
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aLauncher.saveToDisk(null, false);
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} else {
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if (!wasClicked)
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aLauncher.cancel(Cr.NS_BINDING_ABORTED);
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}
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}
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};
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this._notify(aLauncher, listener);
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}
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},
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promptForSaveToFile: function hald_promptForSaveToFile(aLauncher, aContext, aDefaultFile, aSuggestedFileExt, aForcePrompt) {
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let file = null;
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let prefs = Services.prefs;
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if (!aForcePrompt) {
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// Check to see if the user wishes to auto save to the default download
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// folder without prompting. Note that preference might not be set.
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let autodownload = true;
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try {
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autodownload = prefs.getBoolPref(PREF_BD_USEDOWNLOADDIR);
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} catch (e) { }
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if (autodownload) {
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// Retrieve the user's default download directory
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let dnldMgr = Cc["@mozilla.org/download-manager;1"].getService(Ci.nsIDownloadManager);
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let defaultFolder = dnldMgr.userDownloadsDirectory;
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try {
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file = this.validateLeafName(defaultFolder, aDefaultFile, aSuggestedFileExt);
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}
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catch (e) {
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}
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// Check to make sure we have a valid directory, otherwise, prompt
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if (file)
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return file;
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}
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}
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// Use file picker to show dialog.
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let picker = Cc["@mozilla.org/filepicker;1"].createInstance(Ci.nsIFilePicker);
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let windowTitle = "";
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let parent = aContext.QueryInterface(Ci.nsIInterfaceRequestor).getInterface(Ci.nsIDOMWindow);
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picker.init(parent, windowTitle, Ci.nsIFilePicker.modeSave);
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picker.defaultString = aDefaultFile;
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if (aSuggestedFileExt) {
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// aSuggestedFileExtension includes the period, so strip it
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picker.defaultExtension = aSuggestedFileExt.substring(1);
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}
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else {
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try {
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picker.defaultExtension = aLauncher.MIMEInfo.primaryExtension;
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}
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catch (e) { }
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}
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var wildCardExtension = "*";
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if (aSuggestedFileExt) {
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wildCardExtension += aSuggestedFileExt;
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picker.appendFilter(aLauncher.MIMEInfo.description, wildCardExtension);
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}
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picker.appendFilters(Ci.nsIFilePicker.filterAll);
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// Default to lastDir if it is valid, otherwise use the user's default
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// downloads directory. userDownloadsDirectory should always return a
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// valid directory, so we can safely default to it.
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var dnldMgr = Cc["@mozilla.org/download-manager;1"].getService(Ci.nsIDownloadManager);
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picker.displayDirectory = dnldMgr.userDownloadsDirectory;
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// The last directory preference may not exist, which will throw.
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try {
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let lastDir = prefs.getComplexValue("browser.download.lastDir", Ci.nsILocalFile);
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if (isUsableDirectory(lastDir))
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picker.displayDirectory = lastDir;
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}
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catch (e) { }
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if (picker.show() == Ci.nsIFilePicker.returnCancel) {
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// null result means user cancelled.
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return null;
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}
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// Be sure to save the directory the user chose through the Save As...
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// dialog as the new browser.download.dir since the old one
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// didn't exist.
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file = picker.file;
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if (file) {
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try {
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// Remove the file so that it's not there when we ensure non-existence later;
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// this is safe because for the file to exist, the user would have had to
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// confirm that he wanted the file overwritten.
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if (file.exists())
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file.remove(false);
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}
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catch (e) { }
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var newDir = file.parent.QueryInterface(Ci.nsILocalFile);
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prefs.setComplexValue("browser.download.lastDir", Ci.nsILocalFile, newDir);
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file = this.validateLeafName(newDir, file.leafName, null);
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}
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return file;
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},
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validateLeafName: function hald_validateLeafName(aLocalFile, aLeafName, aFileExt) {
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if (!(aLocalFile && this.isUsableDirectory(aLocalFile)))
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return null;
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// Remove any leading periods, since we don't want to save hidden files
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// automatically.
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aLeafName = aLeafName.replace(/^\.+/, "");
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if (aLeafName == "")
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aLeafName = "unnamed" + (aFileExt ? "." + aFileExt : "");
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aLocalFile.append(aLeafName);
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this.makeFileUnique(aLocalFile);
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return aLocalFile;
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},
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makeFileUnique: function hald_makeFileUnique(aLocalFile) {
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try {
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// Note - this code is identical to that in
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// toolkit/content/contentAreaUtils.js.
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// If you are updating this code, update that code too! We can't share code
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// here since this is called in a js component.
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var collisionCount = 0;
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while (aLocalFile.exists()) {
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collisionCount++;
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if (collisionCount == 1) {
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// Append "(2)" before the last dot in (or at the end of) the filename
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// special case .ext.gz etc files so we don't wind up with .tar(2).gz
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if (aLocalFile.leafName.match(/\.[^\.]{1,3}\.(gz|bz2|Z)$/i))
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aLocalFile.leafName = aLocalFile.leafName.replace(/\.[^\.]{1,3}\.(gz|bz2|Z)$/i, "(2)$&");
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else
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aLocalFile.leafName = aLocalFile.leafName.replace(/(\.[^\.]*)?$/, "(2)$&");
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}
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else {
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// replace the last (n) in the filename with (n+1)
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aLocalFile.leafName = aLocalFile.leafName.replace(/^(.*\()\d+\)/, "$1" + (collisionCount+1) + ")");
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}
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}
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aLocalFile.create(Ci.nsIFile.NORMAL_FILE_TYPE, 0600);
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}
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catch (e) {
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dump("*** exception in validateLeafName: " + e + "\n");
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if (e.result == Cr.NS_ERROR_FILE_ACCESS_DENIED)
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throw e;
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if (aLocalFile.leafName == "" || aLocalFile.isDirectory()) {
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aLocalFile.append("unnamed");
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if (aLocalFile.exists())
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aLocalFile.createUnique(Ci.nsIFile.NORMAL_FILE_TYPE, 0600);
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}
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}
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},
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isUsableDirectory: function hald_isUsableDirectory(aDirectory) {
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return aDirectory.exists() && aDirectory.isDirectory() && aDirectory.isWritable();
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},
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_notify: function hald_notify(aLauncher, aCallback) {
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let bundle = Services.strings.createBundle("chrome://browser/locale/browser.properties");
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let notifier = Cc[aCallback ? "@mozilla.org/alerts-service;1" : "@mozilla.org/toaster-alerts-service;1"].getService(Ci.nsIAlertsService);
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notifier.showAlertNotification(URI_GENERIC_ICON_DOWNLOAD,
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bundle.GetStringFromName("alertDownloads"),
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bundle.GetStringFromName("alertCantOpenDownload"),
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true, "", aCallback, "downloadopen-fail");
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}
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};
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const NSGetFactory = XPCOMUtils.generateNSGetFactory([HelperAppLauncherDialog]);
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