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/* 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/. */
const Cc = Components.classes;
const Ci = Components.interfaces;
const Cu = Components.utils;
const Cr = Components.results;
const PREF_BD_USEDOWNLOADDIR = "browser.download.useDownloadDir";
const URI_GENERIC_ICON_DOWNLOAD = "drawable://alert_download";
Cu.import("resource://gre/modules/XPCOMUtils.jsm");
Cu.import("resource://gre/modules/Services.jsm");
// -----------------------------------------------------------------------
// HelperApp Launcher Dialog
// -----------------------------------------------------------------------
function HelperAppLauncherDialog() { }
HelperAppLauncherDialog.prototype = {
classID: Components.ID("{e9d277a0-268a-4ec2-bb8c-10fdf3e44611}"),
QueryInterface: XPCOMUtils.generateQI([Ci.nsIHelperAppLauncherDialog]),
show: function hald_show(aLauncher, aContext, aReason) {
// Check to see if we can open this file or not
if (aLauncher.MIMEInfo.hasDefaultHandler) {
aLauncher.MIMEInfo.preferredAction = Ci.nsIMIMEInfo.useSystemDefault;
aLauncher.launchWithApplication(null, false);
} else {
let wasClicked = false;
let listener = {
observe: function(aSubject, aTopic, aData) {
if (aTopic == "alertclickcallback") {
wasClicked = true;
let win = Cc["@mozilla.org/appshell/window-mediator;1"].getService(Ci.nsIWindowMediator).getMostRecentWindow("navigator:browser");
if (win)
win.BrowserUI.showPanel("downloads-container");
aLauncher.saveToDisk(null, false);
} else {
if (!wasClicked)
aLauncher.cancel(Cr.NS_BINDING_ABORTED);
}
}
};
this._notify(aLauncher, listener);
}
},
promptForSaveToFile: function hald_promptForSaveToFile(aLauncher, aContext, aDefaultFile, aSuggestedFileExt, aForcePrompt) {
let file = null;
let prefs = Services.prefs;
if (!aForcePrompt) {
// Check to see if the user wishes to auto save to the default download
// folder without prompting. Note that preference might not be set.
let autodownload = true;
try {
autodownload = prefs.getBoolPref(PREF_BD_USEDOWNLOADDIR);
} catch (e) { }
if (autodownload) {
// Retrieve the user's default download directory
let dnldMgr = Cc["@mozilla.org/download-manager;1"].getService(Ci.nsIDownloadManager);
let defaultFolder = dnldMgr.userDownloadsDirectory;
try {
file = this.validateLeafName(defaultFolder, aDefaultFile, aSuggestedFileExt);
}
catch (e) {
}
// Check to make sure we have a valid directory, otherwise, prompt
if (file)
return file;
}
}
// Use file picker to show dialog.
let picker = Cc["@mozilla.org/filepicker;1"].createInstance(Ci.nsIFilePicker);
let windowTitle = "";
let parent = aContext.QueryInterface(Ci.nsIInterfaceRequestor).getInterface(Ci.nsIDOMWindow);
picker.init(parent, windowTitle, Ci.nsIFilePicker.modeSave);
picker.defaultString = aDefaultFile;
if (aSuggestedFileExt) {
// aSuggestedFileExtension includes the period, so strip it
picker.defaultExtension = aSuggestedFileExt.substring(1);
}
else {
try {
picker.defaultExtension = aLauncher.MIMEInfo.primaryExtension;
}
catch (e) { }
}
var wildCardExtension = "*";
if (aSuggestedFileExt) {
wildCardExtension += aSuggestedFileExt;
picker.appendFilter(aLauncher.MIMEInfo.description, wildCardExtension);
}
picker.appendFilters(Ci.nsIFilePicker.filterAll);
// Default to lastDir if it is valid, otherwise use the user's default
// downloads directory. userDownloadsDirectory should always return a
// valid directory, so we can safely default to it.
var dnldMgr = Cc["@mozilla.org/download-manager;1"].getService(Ci.nsIDownloadManager);
picker.displayDirectory = dnldMgr.userDownloadsDirectory;
// The last directory preference may not exist, which will throw.
try {
let lastDir = prefs.getComplexValue("browser.download.lastDir", Ci.nsILocalFile);
if (isUsableDirectory(lastDir))
picker.displayDirectory = lastDir;
}
catch (e) { }
if (picker.show() == Ci.nsIFilePicker.returnCancel) {
// null result means user cancelled.
return null;
}
// Be sure to save the directory the user chose through the Save As...
// dialog as the new browser.download.dir since the old one
// didn't exist.
file = picker.file;
if (file) {
try {
// Remove the file so that it's not there when we ensure non-existence later;
// this is safe because for the file to exist, the user would have had to
// confirm that he wanted the file overwritten.
if (file.exists())
file.remove(false);
}
catch (e) { }
var newDir = file.parent.QueryInterface(Ci.nsILocalFile);
prefs.setComplexValue("browser.download.lastDir", Ci.nsILocalFile, newDir);
file = this.validateLeafName(newDir, file.leafName, null);
}
return file;
},
validateLeafName: function hald_validateLeafName(aLocalFile, aLeafName, aFileExt) {
if (!(aLocalFile && this.isUsableDirectory(aLocalFile)))
return null;
// Remove any leading periods, since we don't want to save hidden files
// automatically.
aLeafName = aLeafName.replace(/^\.+/, "");
if (aLeafName == "")
aLeafName = "unnamed" + (aFileExt ? "." + aFileExt : "");
aLocalFile.append(aLeafName);
this.makeFileUnique(aLocalFile);
return aLocalFile;
},
makeFileUnique: function hald_makeFileUnique(aLocalFile) {
try {
// Note - this code is identical to that in
// toolkit/content/contentAreaUtils.js.
// If you are updating this code, update that code too! We can't share code
// here since this is called in a js component.
var collisionCount = 0;
while (aLocalFile.exists()) {
collisionCount++;
if (collisionCount == 1) {
// Append "(2)" before the last dot in (or at the end of) the filename
// special case .ext.gz etc files so we don't wind up with .tar(2).gz
if (aLocalFile.leafName.match(/\.[^\.]{1,3}\.(gz|bz2|Z)$/i))
aLocalFile.leafName = aLocalFile.leafName.replace(/\.[^\.]{1,3}\.(gz|bz2|Z)$/i, "(2)$&");
else
aLocalFile.leafName = aLocalFile.leafName.replace(/(\.[^\.]*)?$/, "(2)$&");
}
else {
// replace the last (n) in the filename with (n+1)
aLocalFile.leafName = aLocalFile.leafName.replace(/^(.*\()\d+\)/, "$1" + (collisionCount+1) + ")");
}
}
aLocalFile.create(Ci.nsIFile.NORMAL_FILE_TYPE, 0600);
}
catch (e) {
dump("*** exception in validateLeafName: " + e + "\n");
if (e.result == Cr.NS_ERROR_FILE_ACCESS_DENIED)
throw e;
if (aLocalFile.leafName == "" || aLocalFile.isDirectory()) {
aLocalFile.append("unnamed");
if (aLocalFile.exists())
aLocalFile.createUnique(Ci.nsIFile.NORMAL_FILE_TYPE, 0600);
}
}
},
isUsableDirectory: function hald_isUsableDirectory(aDirectory) {
return aDirectory.exists() && aDirectory.isDirectory() && aDirectory.isWritable();
},
_notify: function hald_notify(aLauncher, aCallback) {
let bundle = Services.strings.createBundle("chrome://browser/locale/browser.properties");
let notifier = Cc[aCallback ? "@mozilla.org/alerts-service;1" : "@mozilla.org/toaster-alerts-service;1"].getService(Ci.nsIAlertsService);
notifier.showAlertNotification(URI_GENERIC_ICON_DOWNLOAD,
bundle.GetStringFromName("alertDownloads"),
bundle.GetStringFromName("alertCantOpenDownload"),
true, "", aCallback, "downloadopen-fail");
}
};
this.NSGetFactory = XPCOMUtils.generateNSGetFactory([HelperAppLauncherDialog]);
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