gecko/browser/metro/components/HelperAppDialog.js

307 lines
12 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/. */
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 = "chrome://browser/skin/images/alert-downloads-30.png";
Cu.import("resource://gre/modules/XPCOMUtils.jsm");
Cu.import("resource://gre/modules/Services.jsm");
Cu.import("resource://gre/modules/DownloadUtils.jsm");
XPCOMUtils.defineLazyGetter(this, "ContentUtil", function() {
Cu.import("resource:///modules/ContentUtil.jsm");
return ContentUtil;
});
XPCOMUtils.defineLazyModuleGetter(this, "Downloads",
"resource://gre/modules/Downloads.jsm");
XPCOMUtils.defineLazyModuleGetter(this, "FileUtils",
"resource://gre/modules/FileUtils.jsm");
XPCOMUtils.defineLazyModuleGetter(this, "Task",
"resource://gre/modules/Task.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 the file is an executable then launchWithApplication will fail in
// /uriloader nsMIMEInfoWin.cpp code. So always download in that case.
if (aLauncher.MIMEInfo.hasDefaultHandler && !aLauncher.targetFileIsExecutable) {
aLauncher.MIMEInfo.preferredAction = Ci.nsIMIMEInfo.useSystemDefault;
aLauncher.launchWithApplication(null, false);
} else {
let wasClicked = false;
this._showDownloadInfobar(aLauncher);
}
},
_getDownloadSize: function dv__getDownloadSize (aSize) {
let displaySize = DownloadUtils.convertByteUnits(aSize);
// displaySize[0] is formatted size, displaySize[1] is units
if (aSize > 0)
return displaySize.join("");
else {
let browserBundle = Services.strings.createBundle("chrome://browser/locale/browser.properties");
return browserBundle.GetStringFromName("downloadsUnknownSize");
}
},
_getChromeWindow: function (aWindow) {
let chromeWin = aWindow.QueryInterface(Ci.nsIInterfaceRequestor)
.getInterface(Ci.nsIWebNavigation)
.QueryInterface(Ci.nsIDocShellTreeItem)
.rootTreeItem
.QueryInterface(Ci.nsIInterfaceRequestor)
.getInterface(Ci.nsIDOMWindow)
.QueryInterface(Ci.nsIDOMChromeWindow);
return chromeWin;
},
_showDownloadInfobar: function do_showDownloadInfobar(aLauncher) {
let browserBundle = Services.strings.createBundle("chrome://browser/locale/browser.properties");
let runButtonText =
browserBundle.GetStringFromName("downloadOpen");
let saveButtonText =
browserBundle.GetStringFromName("downloadSave");
let cancelButtonText =
browserBundle.GetStringFromName("downloadCancel");
let buttons = [
{
isDefault: true,
label: runButtonText,
accessKey: "",
callback: function() {
aLauncher.saveToDisk(null, false);
Services.obs.notifyObservers(aLauncher.targetFile, "dl-run", "true");
}
},
{
label: saveButtonText,
accessKey: "",
callback: function() {
aLauncher.saveToDisk(null, false);
Services.obs.notifyObservers(aLauncher.targetFile, "dl-run", "false");
}
},
{
label: cancelButtonText,
accessKey: "",
callback: function() { aLauncher.cancel(Cr.NS_BINDING_ABORTED); }
}
];
let window = Services.wm.getMostRecentWindow("navigator:browser");
let chromeWin = this._getChromeWindow(window).wrappedJSObject;
let notificationBox = chromeWin.Browser.getNotificationBox();
let document = notificationBox.ownerDocument;
downloadSize = this._getDownloadSize(aLauncher.contentLength);
let msg = browserBundle.GetStringFromName("alertDownloadSave2");
let fragment = ContentUtil.populateFragmentFromString(
document.createDocumentFragment(),
msg,
{
text: aLauncher.suggestedFileName,
className: "download-filename-text"
},
{
text: aLauncher.suggestedFileName,
className: "download-size-text"
},
{
text: aLauncher.source.host,
className: "download-host-text"
}
);
let newBar = notificationBox.appendNotification("",
"save-download",
URI_GENERIC_ICON_DOWNLOAD,
notificationBox.PRIORITY_WARNING_HIGH,
buttons);
let messageContainer = document.getAnonymousElementByAttribute(newBar, "anonid", "messageText");
messageContainer.appendChild(fragment);
},
promptForSaveToFile: function hald_promptForSaveToFile(aLauncher, aContext, aDefaultFile, aSuggestedFileExt, aForcePrompt) {
throw new Components.Exception("Async version must be used", Cr.NS_ERROR_NOT_AVAILABLE);
},
promptForSaveToFileAsync: function hald_promptForSaveToFileAsync(aLauncher, aContext, aDefaultFile, aSuggestedFileExt, aForcePrompt) {
let file = null;
let prefs = Services.prefs;
Task.spawn(function() {
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 preferred download directory
let preferredDir = yield Downloads.getPreferredDownloadsDirectory();
let defaultFolder = new FileUtils.File(preferredDir);
try {
file = this.validateLeafName(defaultFolder, aDefaultFile, aSuggestedFileExt);
}
catch (e) {
}
// Check to make sure we have a valid directory, otherwise, prompt
if (file) {
aLauncher.saveDestinationAvailable(file);
return;
}
}
}
// 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) { }
}
let 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 preferred
// downloads directory. getPreferredDownloadsDirectory should always
// return a valid directory string, so we can safely default to it.
let preferredDir = yield Downloads.getPreferredDownloadsDirectory();
picker.displayDirectory = new FileUtils.File(preferredDir);
// 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) { }
picker.open(function(aResult) {
if (aResult == Ci.nsIFilePicker.returnCancel) {
// null result means user cancelled.
aLauncher.saveDestinationAvailable(null);
return;
}
// 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) { }
let newDir = file.parent.QueryInterface(Ci.nsILocalFile);
prefs.setComplexValue("browser.download.lastDir", Ci.nsILocalFile, newDir);
file = this.validateLeafName(newDir, file.leafName, null);
}
aLauncher.saveDestinationAvailable(file);
}.bind(this));
}.bind(this));
},
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();
},
};
this.NSGetFactory = XPCOMUtils.generateNSGetFactory([HelperAppLauncherDialog]);