gecko-dev/toolkit/mozapps/downloads/nsHelperAppDlg.js

1147 строки
43 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 {utils: Cu, interfaces: Ci, classes: Cc, results: Cr} = Components;
Cu.import("resource://gre/modules/Services.jsm");
Cu.import("resource://gre/modules/AppConstants.jsm");
Cu.import("resource://gre/modules/XPCOMUtils.jsm");
XPCOMUtils.defineLazyModuleGetter(this, "EnableDelayHelper",
"resource://gre/modules/SharedPromptUtils.jsm");
///////////////////////////////////////////////////////////////////////////////
//// Helper Functions
/**
* Determines if a given directory is able to be used to download to.
*
* @param aDirectory
* The directory to check.
* @return true if we can use the directory, false otherwise.
*/
function isUsableDirectory(aDirectory)
{
return aDirectory.exists() && aDirectory.isDirectory() &&
aDirectory.isWritable();
}
// Web progress listener so we can detect errors while mLauncher is
// streaming the data to a temporary file.
function nsUnknownContentTypeDialogProgressListener(aHelperAppDialog) {
this.helperAppDlg = aHelperAppDialog;
}
nsUnknownContentTypeDialogProgressListener.prototype = {
// nsIWebProgressListener methods.
// Look for error notifications and display alert to user.
onStatusChange: function( aWebProgress, aRequest, aStatus, aMessage ) {
if ( aStatus != Components.results.NS_OK ) {
// Display error alert (using text supplied by back-end).
// FIXME this.dialog is undefined?
Services.prompt.alert( this.dialog, this.helperAppDlg.mTitle, aMessage );
// Close the dialog.
this.helperAppDlg.onCancel();
if ( this.helperAppDlg.mDialog ) {
this.helperAppDlg.mDialog.close();
}
}
},
// Ignore onProgressChange, onProgressChange64, onStateChange, onLocationChange, onSecurityChange, and onRefreshAttempted notifications.
onProgressChange: function( aWebProgress,
aRequest,
aCurSelfProgress,
aMaxSelfProgress,
aCurTotalProgress,
aMaxTotalProgress ) {
},
onProgressChange64: function( aWebProgress,
aRequest,
aCurSelfProgress,
aMaxSelfProgress,
aCurTotalProgress,
aMaxTotalProgress ) {
},
onStateChange: function( aWebProgress, aRequest, aStateFlags, aStatus ) {
},
onLocationChange: function( aWebProgress, aRequest, aLocation, aFlags ) {
},
onSecurityChange: function( aWebProgress, aRequest, state ) {
},
onRefreshAttempted: function( aWebProgress, aURI, aDelay, aSameURI ) {
return true;
}
};
///////////////////////////////////////////////////////////////////////////////
//// nsUnknownContentTypeDialog
/* This file implements the nsIHelperAppLauncherDialog interface.
*
* The implementation consists of a JavaScript "class" named nsUnknownContentTypeDialog,
* comprised of:
* - a JS constructor function
* - a prototype providing all the interface methods and implementation stuff
*
* In addition, this file implements an nsIModule object that registers the
* nsUnknownContentTypeDialog component.
*/
const PREF_BD_USEDOWNLOADDIR = "browser.download.useDownloadDir";
const nsITimer = Components.interfaces.nsITimer;
var downloadModule = {};
Components.utils.import("resource://gre/modules/XPCOMUtils.jsm");
Components.utils.import("resource://gre/modules/DownloadLastDir.jsm", downloadModule);
Components.utils.import("resource://gre/modules/DownloadPaths.jsm");
Components.utils.import("resource://gre/modules/DownloadUtils.jsm");
Components.utils.import("resource://gre/modules/Downloads.jsm");
Components.utils.import("resource://gre/modules/FileUtils.jsm");
Components.utils.import("resource://gre/modules/Task.jsm");
/* ctor
*/
function nsUnknownContentTypeDialog() {
// Initialize data properties.
this.mLauncher = null;
this.mContext = null;
this.mReason = null;
this.chosenApp = null;
this.givenDefaultApp = false;
this.updateSelf = true;
this.mTitle = "";
}
nsUnknownContentTypeDialog.prototype = {
classID: Components.ID("{F68578EB-6EC2-4169-AE19-8C6243F0ABE1}"),
nsIMIMEInfo : Components.interfaces.nsIMIMEInfo,
QueryInterface: function (iid) {
if (!iid.equals(Components.interfaces.nsIHelperAppLauncherDialog) &&
!iid.equals(Components.interfaces.nsITimerCallback) &&
!iid.equals(Components.interfaces.nsISupports)) {
throw Components.results.NS_ERROR_NO_INTERFACE;
}
return this;
},
// ---------- nsIHelperAppLauncherDialog methods ----------
// show: Open XUL dialog using window watcher. Since the dialog is not
// modal, it needs to be a top level window and the way to open
// one of those is via that route).
show: function(aLauncher, aContext, aReason) {
this.mLauncher = aLauncher;
this.mContext = aContext;
this.mReason = aReason;
// Cache some information in case this context goes away:
try {
let parent = aContext.QueryInterface(Ci.nsIInterfaceRequestor).getInterface(Ci.nsIDOMWindow);
this._mDownloadDir = new downloadModule.DownloadLastDir(parent);
} catch (ex) {
Cu.reportError("Missing window information when showing nsIHelperAppLauncherDialog: " + ex);
}
const nsITimer = Components.interfaces.nsITimer;
this._showTimer = Components.classes["@mozilla.org/timer;1"]
.createInstance(nsITimer);
this._showTimer.initWithCallback(this, 0, nsITimer.TYPE_ONE_SHOT);
},
// When opening from new tab, if tab closes while dialog is opening,
// (which is a race condition on the XUL file being cached and the timer
// in nsExternalHelperAppService), the dialog gets a blur and doesn't
// activate the OK button. So we wait a bit before doing opening it.
reallyShow: function() {
try {
let ir = this.mContext.QueryInterface(Components.interfaces.nsIInterfaceRequestor);
let docShell = ir.getInterface(Components.interfaces.nsIDocShell);
let rootWin = docShell.QueryInterface(Ci.nsIDocShellTreeItem)
.rootTreeItem
.QueryInterface(Ci.nsIInterfaceRequestor)
.getInterface(Ci.nsIDOMWindow);
let ww = Components.classes["@mozilla.org/embedcomp/window-watcher;1"]
.getService(Components.interfaces.nsIWindowWatcher);
this.mDialog = ww.openWindow(rootWin,
"chrome://mozapps/content/downloads/unknownContentType.xul",
null,
"chrome,centerscreen,titlebar,dialog=yes,dependent",
null);
} catch (ex) {
// The containing window may have gone away. Break reference
// cycles and stop doing the download.
this.mLauncher.cancel(Components.results.NS_BINDING_ABORTED);
return;
}
// Hook this object to the dialog.
this.mDialog.dialog = this;
// Hook up utility functions.
this.getSpecialFolderKey = this.mDialog.getSpecialFolderKey;
// Watch for error notifications.
var progressListener = new nsUnknownContentTypeDialogProgressListener(this);
this.mLauncher.setWebProgressListener(progressListener);
},
//
// displayBadPermissionAlert()
//
// Diplay an alert panel about the bad permission of folder/directory.
//
displayBadPermissionAlert: function () {
let bundle =
Services.strings.createBundle("chrome://mozapps/locale/downloads/unknownContentType.properties");
Services.prompt.alert(this.dialog,
bundle.GetStringFromName("badPermissions.title"),
bundle.GetStringFromName("badPermissions"));
},
promptForSaveToFileAsync: function(aLauncher, aContext, aDefaultFile, aSuggestedFileExtension, aForcePrompt) {
var result = null;
this.mLauncher = aLauncher;
let prefs = Components.classes["@mozilla.org/preferences-service;1"]
.getService(Components.interfaces.nsIPrefBranch);
let bundle =
Services.strings
.createBundle("chrome://mozapps/locale/downloads/unknownContentType.properties");
let parent;
let gDownloadLastDir;
try {
parent = aContext.QueryInterface(Ci.nsIInterfaceRequestor).getInterface(Ci.nsIDOMWindow);
} catch (ex) {}
if (parent) {
gDownloadLastDir = new downloadModule.DownloadLastDir(parent);
} else {
// Use the cached download info, but pick an arbitrary parent window
// because the original one is definitely gone (and nsIFilePicker doesn't like
// a null parent):
gDownloadLastDir = this._mDownloadDir;
let windowsEnum = Services.wm.getEnumerator("");
while (windowsEnum.hasMoreElements()) {
let someWin = windowsEnum.getNext();
// We need to make sure we don't end up with this dialog, because otherwise
// that's going to go away when the user clicks "Save", and that breaks the
// windows file picker that's supposed to show up if we let the user choose
// where to save files...
if (someWin != this.mDialog) {
parent = someWin;
}
}
if (!parent) {
Cu.reportError("No candidate parent windows were found for the save filepicker." +
"This should never happen.");
}
}
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 = prefs.getBoolPref(PREF_BD_USEDOWNLOADDIR, false);
if (autodownload) {
// Retrieve the user's default download directory
let preferredDir = yield Downloads.getPreferredDownloadsDirectory();
let defaultFolder = new FileUtils.File(preferredDir);
try {
result = this.validateLeafName(defaultFolder, aDefaultFile, aSuggestedFileExtension);
}
catch (ex) {
// When the default download directory is write-protected,
// prompt the user for a different target file.
}
// Check to make sure we have a valid directory, otherwise, prompt
if (result) {
// This path is taken when we have a writable default download directory.
aLauncher.saveDestinationAvailable(result);
return;
}
}
}
// Use file picker to show dialog.
var nsIFilePicker = Components.interfaces.nsIFilePicker;
var picker = Components.classes["@mozilla.org/filepicker;1"].createInstance(nsIFilePicker);
var windowTitle = bundle.GetStringFromName("saveDialogTitle");
picker.init(parent, windowTitle, nsIFilePicker.modeSave);
picker.defaultString = aDefaultFile;
if (aSuggestedFileExtension) {
// aSuggestedFileExtension includes the period, so strip it
picker.defaultExtension = aSuggestedFileExtension.substring(1);
}
else {
try {
picker.defaultExtension = this.mLauncher.MIMEInfo.primaryExtension;
}
catch (ex) { }
}
var wildCardExtension = "*";
if (aSuggestedFileExtension) {
wildCardExtension += aSuggestedFileExtension;
picker.appendFilter(this.mLauncher.MIMEInfo.description, wildCardExtension);
}
picker.appendFilters( nsIFilePicker.filterAll );
// Default to lastDir if it is valid, otherwise use the user's default
// downloads directory. getPreferredDownloadsDirectory should always
// return a valid directory path, so we can safely default to it.
let preferredDir = yield Downloads.getPreferredDownloadsDirectory();
picker.displayDirectory = new FileUtils.File(preferredDir);
gDownloadLastDir.getFileAsync(aLauncher.source, function LastDirCallback(lastDir) {
if (lastDir && isUsableDirectory(lastDir))
picker.displayDirectory = lastDir;
picker.open(returnValue => {
if (returnValue == 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.
result = picker.file;
if (result) {
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.
// Only remove file if final name exists
if (result.exists() && this.getFinalLeafName(result.leafName) == result.leafName)
result.remove(false);
}
catch (ex) {
// As it turns out, the failure to remove the file, for example due to
// permission error, will be handled below eventually somehow.
}
var newDir = result.parent.QueryInterface(Components.interfaces.nsILocalFile);
// Do not store the last save directory as a pref inside the private browsing mode
gDownloadLastDir.setFile(aLauncher.source, newDir);
try {
result = this.validateLeafName(newDir, result.leafName, null);
}
catch (ex) {
// When the chosen download directory is write-protected,
// display an informative error message.
// In all cases, download will be stopped.
if (ex.result == Components.results.NS_ERROR_FILE_ACCESS_DENIED) {
this.displayBadPermissionAlert();
aLauncher.saveDestinationAvailable(null);
return;
}
}
}
aLauncher.saveDestinationAvailable(result);
});
}.bind(this));
}.bind(this)).then(null, Components.utils.reportError);
},
getFinalLeafName: function (aLeafName, aFileExt)
{
// Remove any leading periods, since we don't want to save hidden files
// automatically.
aLeafName = aLeafName.replace(/^\.+/, "");
if (aLeafName == "")
aLeafName = "unnamed" + (aFileExt ? "." + aFileExt : "");
return aLeafName;
},
/**
* Ensures that a local folder/file combination does not already exist in
* the file system (or finds such a combination with a reasonably similar
* leaf name), creates the corresponding file, and returns it.
*
* @param aLocalFolder
* the folder where the file resides
* @param aLeafName
* the string name of the file (may be empty if no name is known,
* in which case a name will be chosen)
* @param aFileExt
* the extension of the file, if one is known; this will be ignored
* if aLeafName is non-empty
* @return nsILocalFile
* the created file
* @throw an error such as permission doesn't allow creation of
* file, etc.
*/
validateLeafName: function (aLocalFolder, aLeafName, aFileExt)
{
if (!(aLocalFolder && isUsableDirectory(aLocalFolder))) {
throw new Components.Exception("Destination directory non-existing or permission error",
Components.results.NS_ERROR_FILE_ACCESS_DENIED);
}
aLeafName = this.getFinalLeafName(aLeafName, aFileExt);
aLocalFolder.append(aLeafName);
// The following assignment can throw an exception, but
// is now caught properly in the caller of validateLeafName.
var createdFile = DownloadPaths.createNiceUniqueFile(aLocalFolder);
if (AppConstants.platform == "win") {
let ext;
try {
// We can fail here if there's no primary extension set
ext = "." + this.mLauncher.MIMEInfo.primaryExtension;
} catch (e) { }
// Append a file extension if it's an executable that doesn't have one
// but make sure we actually have an extension to add
let leaf = createdFile.leafName;
if (ext && leaf.slice(-ext.length) != ext && createdFile.isExecutable()) {
createdFile.remove(false);
aLocalFolder.leafName = leaf + ext;
createdFile = DownloadPaths.createNiceUniqueFile(aLocalFolder);
}
}
return createdFile;
},
// ---------- implementation methods ----------
// initDialog: Fill various dialog fields with initial content.
initDialog : function() {
// Put file name in window title.
var suggestedFileName = this.mLauncher.suggestedFileName;
// Some URIs do not implement nsIURL, so we can't just QI.
var url = this.mLauncher.source;
if (url instanceof Components.interfaces.nsINestedURI)
url = url.innermostURI;
var fname = "";
var iconPath = "goat";
this.mSourcePath = url.prePath;
if (url instanceof Components.interfaces.nsIURL) {
// A url, use file name from it.
fname = iconPath = url.fileName;
this.mSourcePath += url.directory;
} else {
// A generic uri, use path.
fname = url.path;
this.mSourcePath += url.path;
}
if (suggestedFileName)
fname = iconPath = suggestedFileName;
var displayName = fname.replace(/ +/g, " ");
this.mTitle = this.dialogElement("strings").getFormattedString("title", [displayName]);
this.mDialog.document.title = this.mTitle;
// Put content type, filename and location into intro.
this.initIntro(url, fname, displayName);
var iconString = "moz-icon://" + iconPath + "?size=16&contentType=" + this.mLauncher.MIMEInfo.MIMEType;
this.dialogElement("contentTypeImage").setAttribute("src", iconString);
// if always-save and is-executable and no-handler
// then set up simple ui
var mimeType = this.mLauncher.MIMEInfo.MIMEType;
var shouldntRememberChoice = (mimeType == "application/octet-stream" ||
mimeType == "application/x-msdownload" ||
this.mLauncher.targetFileIsExecutable);
if ((shouldntRememberChoice && !this.openWithDefaultOK()) ||
Services.prefs.getBoolPref("browser.download.forbid_open_with")) {
// hide featured choice
this.dialogElement("normalBox").collapsed = true;
// show basic choice
this.dialogElement("basicBox").collapsed = false;
// change button labels and icons; use "save" icon for the accept
// button since it's the only action possible
let acceptButton = this.mDialog.document.documentElement
.getButton("accept");
acceptButton.label = this.dialogElement("strings")
.getString("unknownAccept.label");
acceptButton.setAttribute("icon", "save");
this.mDialog.document.documentElement.getButton("cancel").label = this.dialogElement("strings").getString("unknownCancel.label");
// hide other handler
this.dialogElement("openHandler").collapsed = true;
// set save as the selected option
this.dialogElement("mode").selectedItem = this.dialogElement("save");
}
else {
this.initAppAndSaveToDiskValues();
// Initialize "always ask me" box. This should always be disabled
// and set to true for the ambiguous type application/octet-stream.
// We don't also check for application/x-msdownload here since we
// want users to be able to autodownload .exe files.
var rememberChoice = this.dialogElement("rememberChoice");
// Just because we have a content-type of application/octet-stream
// here doesn't actually mean that the content is of that type. Many
// servers default to sending text/plain for file types they don't know
// about. To account for this, the uriloader does some checking to see
// if a file sent as text/plain contains binary characters, and if so (*)
// it morphs the content-type into application/octet-stream so that
// the file can be properly handled. Since this is not generic binary
// data, rather, a data format that the system probably knows about,
// we don't want to use the content-type provided by this dialog's
// opener, as that's the generic application/octet-stream that the
// uriloader has passed, rather we want to ask the MIME Service.
// This is so we don't needlessly disable the "autohandle" checkbox.
// commented out to close the opening brace in the if statement.
// var mimeService = Components.classes["@mozilla.org/mime;1"].getService(Components.interfaces.nsIMIMEService);
// var type = mimeService.getTypeFromURI(this.mLauncher.source);
// this.realMIMEInfo = mimeService.getFromTypeAndExtension(type, "");
// if (type == "application/octet-stream") {
if (shouldntRememberChoice) {
rememberChoice.checked = false;
rememberChoice.disabled = true;
}
else {
rememberChoice.checked = !this.mLauncher.MIMEInfo.alwaysAskBeforeHandling &&
this.mLauncher.MIMEInfo.preferredAction != this.nsIMIMEInfo.handleInternally;
}
this.toggleRememberChoice(rememberChoice);
// XXXben - menulist won't init properly, hack.
var openHandler = this.dialogElement("openHandler");
openHandler.remove();
var openHandlerBox = this.dialogElement("openHandlerBox");
openHandlerBox.appendChild(openHandler);
}
this.mDialog.setTimeout("dialog.postShowCallback()", 0);
this.delayHelper = new EnableDelayHelper({
disableDialog: () => {
this.mDialog.document.documentElement.getButton("accept").disabled = true;
},
enableDialog: () => {
this.mDialog.document.documentElement.getButton("accept").disabled = false;
},
focusTarget: this.mDialog
});
},
notify: function (aTimer) {
if (aTimer == this._showTimer) {
if (!this.mDialog) {
this.reallyShow();
}
// The timer won't release us, so we have to release it.
this._showTimer = null;
}
else if (aTimer == this._saveToDiskTimer) {
// Since saveToDisk may open a file picker and therefore block this routine,
// we should only call it once the dialog is closed.
this.mLauncher.saveToDisk(null, false);
this._saveToDiskTimer = null;
}
},
postShowCallback: function () {
this.mDialog.sizeToContent();
// Set initial focus
this.dialogElement("mode").focus();
},
// initIntro:
initIntro: function(url, filename, displayname) {
this.dialogElement( "location" ).value = displayname;
this.dialogElement( "location" ).setAttribute("realname", filename);
this.dialogElement( "location" ).setAttribute("tooltiptext", displayname);
// if mSourcePath is a local file, then let's use the pretty path name
// instead of an ugly url...
var pathString;
if (url instanceof Components.interfaces.nsIFileURL) {
try {
// Getting .file might throw, or .parent could be null
pathString = url.file.parent.path;
} catch (ex) {}
}
if (!pathString) {
// wasn't a fileURL
var tmpurl = url.clone(); // don't want to change the real url
try {
tmpurl.userPass = "";
} catch (ex) {}
pathString = tmpurl.prePath;
}
// Set the location text, which is separate from the intro text so it can be cropped
var location = this.dialogElement( "source" );
location.value = pathString;
location.setAttribute("tooltiptext", this.mSourcePath);
// Show the type of file.
var type = this.dialogElement("type");
var mimeInfo = this.mLauncher.MIMEInfo;
// 1. Try to use the pretty description of the type, if one is available.
var typeString = mimeInfo.description;
if (typeString == "") {
// 2. If there is none, use the extension to identify the file, e.g. "ZIP file"
var primaryExtension = "";
try {
primaryExtension = mimeInfo.primaryExtension;
}
catch (ex) {
}
if (primaryExtension != "")
typeString = this.dialogElement("strings").getFormattedString("fileType", [primaryExtension.toUpperCase()]);
// 3. If we can't even do that, just give up and show the MIME type.
else
typeString = mimeInfo.MIMEType;
}
// When the length is unknown, contentLength would be -1
if (this.mLauncher.contentLength >= 0) {
let [size, unit] = DownloadUtils.
convertByteUnits(this.mLauncher.contentLength);
type.value = this.dialogElement("strings")
.getFormattedString("orderedFileSizeWithType",
[typeString, size, unit]);
}
else {
type.value = typeString;
}
},
// Returns true if opening the default application makes sense.
openWithDefaultOK: function() {
// The checking is different on Windows...
if (AppConstants.platform == "win") {
// Windows presents some special cases.
// We need to prevent use of "system default" when the file is
// executable (so the user doesn't launch nasty programs downloaded
// from the web), and, enable use of "system default" if it isn't
// executable (because we will prompt the user for the default app
// in that case).
// Default is Ok if the file isn't executable (and vice-versa).
return !this.mLauncher.targetFileIsExecutable;
}
// On other platforms, default is Ok if there is a default app.
// Note that nsIMIMEInfo providers need to ensure that this holds true
// on each platform.
return this.mLauncher.MIMEInfo.hasDefaultHandler;
},
// Set "default" application description field.
initDefaultApp: function() {
// Use description, if we can get one.
var desc = this.mLauncher.MIMEInfo.defaultDescription;
if (desc) {
var defaultApp = this.dialogElement("strings").getFormattedString("defaultApp", [desc]);
this.dialogElement("defaultHandler").label = defaultApp;
}
else {
this.dialogElement("modeDeck").setAttribute("selectedIndex", "1");
// Hide the default handler item too, in case the user picks a
// custom handler at a later date which triggers the menulist to show.
this.dialogElement("defaultHandler").hidden = true;
}
},
// getPath:
getPath: function (aFile) {
if (AppConstants.platform == "macosx") {
return aFile.leafName || aFile.path;
}
return aFile.path;
},
// initAppAndSaveToDiskValues:
initAppAndSaveToDiskValues: function() {
var modeGroup = this.dialogElement("mode");
// We don't let users open .exe files or random binary data directly
// from the browser at the moment because of security concerns.
var openWithDefaultOK = this.openWithDefaultOK();
var mimeType = this.mLauncher.MIMEInfo.MIMEType;
if (this.mLauncher.targetFileIsExecutable || (
(mimeType == "application/octet-stream" ||
mimeType == "application/x-msdownload") &&
!openWithDefaultOK)) {
this.dialogElement("open").disabled = true;
var openHandler = this.dialogElement("openHandler");
openHandler.disabled = true;
openHandler.selectedItem = null;
modeGroup.selectedItem = this.dialogElement("save");
return;
}
// Fill in helper app info, if there is any.
try {
this.chosenApp =
this.mLauncher.MIMEInfo.preferredApplicationHandler
.QueryInterface(Components.interfaces.nsILocalHandlerApp);
} catch (e) {
this.chosenApp = null;
}
// Initialize "default application" field.
this.initDefaultApp();
var otherHandler = this.dialogElement("otherHandler");
// Fill application name textbox.
if (this.chosenApp && this.chosenApp.executable &&
this.chosenApp.executable.path) {
otherHandler.setAttribute("path",
this.getPath(this.chosenApp.executable));
otherHandler.label = this.getFileDisplayName(this.chosenApp.executable);
otherHandler.hidden = false;
}
var openHandler = this.dialogElement("openHandler");
openHandler.selectedIndex = 0;
var defaultOpenHandler = this.dialogElement("defaultHandler");
if (this.mLauncher.MIMEInfo.preferredAction == this.nsIMIMEInfo.useSystemDefault) {
// Open (using system default).
modeGroup.selectedItem = this.dialogElement("open");
} else if (this.mLauncher.MIMEInfo.preferredAction == this.nsIMIMEInfo.useHelperApp) {
// Open with given helper app.
modeGroup.selectedItem = this.dialogElement("open");
openHandler.selectedItem = (otherHandler && !otherHandler.hidden) ?
otherHandler : defaultOpenHandler;
} else {
// Save to disk.
modeGroup.selectedItem = this.dialogElement("save");
}
// If we don't have a "default app" then disable that choice.
if (!openWithDefaultOK) {
var isSelected = defaultOpenHandler.selected;
// Disable that choice.
defaultOpenHandler.hidden = true;
// If that's the default, then switch to "save to disk."
if (isSelected) {
openHandler.selectedIndex = 1;
modeGroup.selectedItem = this.dialogElement("save");
}
}
otherHandler.nextSibling.hidden = otherHandler.nextSibling.nextSibling.hidden = false;
this.updateOKButton();
},
// Returns the user-selected application
helperAppChoice: function() {
return this.chosenApp;
},
get saveToDisk() {
return this.dialogElement("save").selected;
},
get useOtherHandler() {
return this.dialogElement("open").selected && this.dialogElement("openHandler").selectedIndex == 1;
},
get useSystemDefault() {
return this.dialogElement("open").selected && this.dialogElement("openHandler").selectedIndex == 0;
},
toggleRememberChoice: function (aCheckbox) {
this.dialogElement("settingsChange").hidden = !aCheckbox.checked;
this.mDialog.sizeToContent();
},
openHandlerCommand: function () {
var openHandler = this.dialogElement("openHandler");
if (openHandler.selectedItem.id == "choose")
this.chooseApp();
else
openHandler.setAttribute("lastSelectedItemID", openHandler.selectedItem.id);
},
updateOKButton: function() {
var ok = false;
if (this.dialogElement("save").selected) {
// This is always OK.
ok = true;
}
else if (this.dialogElement("open").selected) {
switch (this.dialogElement("openHandler").selectedIndex) {
case 0:
// No app need be specified in this case.
ok = true;
break;
case 1:
// only enable the OK button if we have a default app to use or if
// the user chose an app....
ok = this.chosenApp || /\S/.test(this.dialogElement("otherHandler").getAttribute("path"));
break;
}
}
// Enable Ok button if ok to press.
this.mDialog.document.documentElement.getButton("accept").disabled = !ok;
},
// Returns true iff the user-specified helper app has been modified.
appChanged: function() {
return this.helperAppChoice() != this.mLauncher.MIMEInfo.preferredApplicationHandler;
},
updateMIMEInfo: function() {
// Don't update mime type preferences when the preferred action is set to
// the internal handler -- this dialog is the result of the handler fallback
// (e.g. Content-Disposition was set as attachment)
var discardUpdate = this.mLauncher.MIMEInfo.preferredAction == this.nsIMIMEInfo.handleInternally &&
!this.dialogElement("rememberChoice").checked;
var needUpdate = false;
// If current selection differs from what's in the mime info object,
// then we need to update.
if (this.saveToDisk) {
needUpdate = this.mLauncher.MIMEInfo.preferredAction != this.nsIMIMEInfo.saveToDisk;
if (needUpdate)
this.mLauncher.MIMEInfo.preferredAction = this.nsIMIMEInfo.saveToDisk;
}
else if (this.useSystemDefault) {
needUpdate = this.mLauncher.MIMEInfo.preferredAction != this.nsIMIMEInfo.useSystemDefault;
if (needUpdate)
this.mLauncher.MIMEInfo.preferredAction = this.nsIMIMEInfo.useSystemDefault;
}
else {
// For "open with", we need to check both preferred action and whether the user chose
// a new app.
needUpdate = this.mLauncher.MIMEInfo.preferredAction != this.nsIMIMEInfo.useHelperApp || this.appChanged();
if (needUpdate) {
this.mLauncher.MIMEInfo.preferredAction = this.nsIMIMEInfo.useHelperApp;
// App may have changed - Update application
var app = this.helperAppChoice();
this.mLauncher.MIMEInfo.preferredApplicationHandler = app;
}
}
// We will also need to update if the "always ask" flag has changed.
needUpdate = needUpdate || this.mLauncher.MIMEInfo.alwaysAskBeforeHandling != (!this.dialogElement("rememberChoice").checked);
// One last special case: If the input "always ask" flag was false, then we always
// update. In that case we are displaying the helper app dialog for the first
// time for this mime type and we need to store the user's action in the mimeTypes.rdf
// data source (whether that action has changed or not; if it didn't change, then we need
// to store the "always ask" flag so the helper app dialog will or won't display
// next time, per the user's selection).
needUpdate = needUpdate || !this.mLauncher.MIMEInfo.alwaysAskBeforeHandling;
// Make sure mime info has updated setting for the "always ask" flag.
this.mLauncher.MIMEInfo.alwaysAskBeforeHandling = !this.dialogElement("rememberChoice").checked;
return needUpdate && !discardUpdate;
},
// See if the user changed things, and if so, update the
// mimeTypes.rdf entry for this mime type.
updateHelperAppPref: function() {
var handlerInfo = this.mLauncher.MIMEInfo;
var hs = Cc["@mozilla.org/uriloader/handler-service;1"].getService(Ci.nsIHandlerService);
hs.store(handlerInfo);
},
// onOK:
onOK: function() {
// Verify typed app path, if necessary.
if (this.useOtherHandler) {
var helperApp = this.helperAppChoice();
if (!helperApp || !helperApp.executable ||
!helperApp.executable.exists()) {
// Show alert and try again.
var bundle = this.dialogElement("strings");
var msg = bundle.getFormattedString("badApp", [this.dialogElement("otherHandler").getAttribute("path")]);
Services.prompt.alert(this.mDialog, bundle.getString("badApp.title"), msg);
// Disable the OK button.
this.mDialog.document.documentElement.getButton("accept").disabled = true;
this.dialogElement("mode").focus();
// Clear chosen application.
this.chosenApp = null;
// Leave dialog up.
return false;
}
}
// Remove our web progress listener (a progress dialog will be
// taking over).
this.mLauncher.setWebProgressListener(null);
// saveToDisk and launchWithApplication can return errors in
// certain circumstances (e.g. The user clicks cancel in the
// "Save to Disk" dialog. In those cases, we don't want to
// update the helper application preferences in the RDF file.
try {
var needUpdate = this.updateMIMEInfo();
if (this.dialogElement("save").selected) {
// If we're using a default download location, create a path
// for the file to be saved to to pass to |saveToDisk| - otherwise
// we must ask the user to pick a save name.
/*
var prefs = Components.classes["@mozilla.org/preferences-service;1"].getService(Components.interfaces.nsIPrefBranch);
var targetFile = null;
try {
targetFile = prefs.getComplexValue("browser.download.defaultFolder",
Components.interfaces.nsILocalFile);
var leafName = this.dialogElement("location").getAttribute("realname");
// Ensure that we don't overwrite any existing files here.
targetFile = this.validateLeafName(targetFile, leafName, null);
}
catch(e) { }
this.mLauncher.saveToDisk(targetFile, false);
*/
// see @notify
// we cannot use opener's setTimeout, see bug 420405
this._saveToDiskTimer = Components.classes["@mozilla.org/timer;1"]
.createInstance(nsITimer);
this._saveToDiskTimer.initWithCallback(this, 0,
nsITimer.TYPE_ONE_SHOT);
}
else
this.mLauncher.launchWithApplication(null, false);
// Update user pref for this mime type (if necessary). We do not
// store anything in the mime type preferences for the ambiguous
// type application/octet-stream. We do NOT do this for
// application/x-msdownload since we want users to be able to
// autodownload these to disk.
if (needUpdate && this.mLauncher.MIMEInfo.MIMEType != "application/octet-stream")
this.updateHelperAppPref();
} catch(e) { }
// Unhook dialog from this object.
this.mDialog.dialog = null;
// Close up dialog by returning true.
return true;
},
// onCancel:
onCancel: function() {
// Remove our web progress listener.
this.mLauncher.setWebProgressListener(null);
// Cancel app launcher.
try {
this.mLauncher.cancel(Components.results.NS_BINDING_ABORTED);
} catch(exception) {
}
// Unhook dialog from this object.
this.mDialog.dialog = null;
// Close up dialog by returning true.
return true;
},
// dialogElement: Convenience.
dialogElement: function(id) {
return this.mDialog.document.getElementById(id);
},
// Retrieve the pretty description from the file
getFileDisplayName: function getFileDisplayName(file)
{
if (AppConstants.platform == "win") {
if (file instanceof Components.interfaces.nsILocalFileWin) {
try {
return file.getVersionInfoField("FileDescription");
} catch (e) {}
}
} else if (AppConstants.platform == "macosx") {
if (file instanceof Components.interfaces.nsILocalFileMac) {
try {
return file.bundleDisplayName;
} catch (e) {}
}
}
return file.leafName;
},
finishChooseApp: function() {
if (this.chosenApp) {
// Show the "handler" menulist since we have a (user-specified)
// application now.
this.dialogElement("modeDeck").setAttribute("selectedIndex", "0");
// Update dialog.
var otherHandler = this.dialogElement("otherHandler");
otherHandler.removeAttribute("hidden");
otherHandler.setAttribute("path", this.getPath(this.chosenApp.executable));
if (AppConstants.platform == "win")
otherHandler.label = this.getFileDisplayName(this.chosenApp.executable);
else
otherHandler.label = this.chosenApp.name;
this.dialogElement("openHandler").selectedIndex = 1;
this.dialogElement("openHandler").setAttribute("lastSelectedItemID", "otherHandler");
this.dialogElement("mode").selectedItem = this.dialogElement("open");
}
else {
var openHandler = this.dialogElement("openHandler");
var lastSelectedID = openHandler.getAttribute("lastSelectedItemID");
if (!lastSelectedID)
lastSelectedID = "defaultHandler";
openHandler.selectedItem = this.dialogElement(lastSelectedID);
}
},
// chooseApp: Open file picker and prompt user for application.
chooseApp: function() {
if (AppConstants.platform == "win") {
// Protect against the lack of an extension
var fileExtension = "";
try {
fileExtension = this.mLauncher.MIMEInfo.primaryExtension;
} catch(ex) {
}
// Try to use the pretty description of the type, if one is available.
var typeString = this.mLauncher.MIMEInfo.description;
if (!typeString) {
// If there is none, use the extension to
// identify the file, e.g. "ZIP file"
if (fileExtension) {
typeString =
this.dialogElement("strings").
getFormattedString("fileType", [fileExtension.toUpperCase()]);
} else {
// If we can't even do that, just give up and show the MIME type.
typeString = this.mLauncher.MIMEInfo.MIMEType;
}
}
var params = {};
params.title =
this.dialogElement("strings").getString("chooseAppFilePickerTitle");
params.description = typeString;
params.filename = this.mLauncher.suggestedFileName;
params.mimeInfo = this.mLauncher.MIMEInfo;
params.handlerApp = null;
this.mDialog.openDialog("chrome://global/content/appPicker.xul", null,
"chrome,modal,centerscreen,titlebar,dialog=yes",
params);
if (params.handlerApp &&
params.handlerApp.executable &&
params.handlerApp.executable.isFile()) {
// Remember the file they chose to run.
this.chosenApp = params.handlerApp;
}
}
else {
#if MOZ_WIDGET_GTK == 3
var nsIApplicationChooser = Components.interfaces.nsIApplicationChooser;
var appChooser = Components.classes["@mozilla.org/applicationchooser;1"]
.createInstance(nsIApplicationChooser);
appChooser.init(this.mDialog, this.dialogElement("strings").getString("chooseAppFilePickerTitle"));
var contentTypeDialogObj = this;
let appChooserCallback = function appChooserCallback_done(aResult) {
if (aResult) {
contentTypeDialogObj.chosenApp = aResult.QueryInterface(Components.interfaces.nsILocalHandlerApp);
}
contentTypeDialogObj.finishChooseApp();
};
appChooser.open(this.mLauncher.MIMEInfo.MIMEType, appChooserCallback);
// The finishChooseApp is called from appChooserCallback
return;
#else
var nsIFilePicker = Components.interfaces.nsIFilePicker;
var fp = Components.classes["@mozilla.org/filepicker;1"]
.createInstance(nsIFilePicker);
fp.init(this.mDialog,
this.dialogElement("strings").getString("chooseAppFilePickerTitle"),
nsIFilePicker.modeOpen);
fp.appendFilters(nsIFilePicker.filterApps);
if (fp.show() == nsIFilePicker.returnOK && fp.file) {
// Remember the file they chose to run.
var localHandlerApp =
Components.classes["@mozilla.org/uriloader/local-handler-app;1"].
createInstance(Components.interfaces.nsILocalHandlerApp);
localHandlerApp.executable = fp.file;
this.chosenApp = localHandlerApp;
}
#endif // MOZ_WIDGET_GTK == 3
}
this.finishChooseApp();
},
// Turn this on to get debugging messages.
debug: false,
// Dump text (if debug is on).
dump: function( text ) {
if ( this.debug ) {
dump( text );
}
},
// dumpObj:
dumpObj: function( spec ) {
var val = "<undefined>";
try {
val = eval( "this."+spec ).toString();
} catch( exception ) {
}
this.dump( spec + "=" + val + "\n" );
},
// dumpObjectProperties
dumpObjectProperties: function( desc, obj ) {
for( prop in obj ) {
this.dump( desc + "." + prop + "=" );
var val = "<undefined>";
try {
val = obj[ prop ];
} catch ( exception ) {
}
this.dump( val + "\n" );
}
}
}
this.NSGetFactory = XPCOMUtils.generateNSGetFactory([nsUnknownContentTypeDialog]);