The Tor Browser: widget/cocoa/nsFilePicker.mm@7e26c7da4463 (annotated)

widget/cocoa/nsFilePicker.mm@7e26c7da4463 (annotated)

widget/cocoa/nsFilePicker.mm

Wed, 31 Dec 2014 06:55:50 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Wed, 31 Dec 2014 06:55:50 +0100
changeset 2: 7e26c7da4463
permissions: -rw-r--r--

Added tag UPSTREAM_283F7C6 for changeset ca08bd8f51b2

 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 /* 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/. */
 #import <Cocoa/Cocoa.h>
 #include "nsFilePicker.h"
 #include "nsCOMPtr.h"
 #include "nsReadableUtils.h"
 #include "nsNetUtil.h"
 #include "nsIComponentManager.h"
 #include "nsIFile.h"
 #include "nsILocalFileMac.h"
 #include "nsIURL.h"
 #include "nsArrayEnumerator.h"
 #include "nsIStringBundle.h"
 #include "nsCocoaFeatures.h"
 #include "nsCocoaUtils.h"
 #include "mozilla/Preferences.h"
 // This must be included last:
 #include "nsObjCExceptions.h"
 using namespace mozilla;
 const float kAccessoryViewPadding = 5;
 const int   kSaveTypeControlTag = 1;
 static bool gCallSecretHiddenFileAPI = false;
 const char kShowHiddenFilesPref[] = "filepicker.showHiddenFiles";
 /**
  * This class is an observer of NSPopUpButton selection change.
  */
 @interface NSPopUpButtonObserver : NSObject
 {
   NSPopUpButton* mPopUpButton;
   NSOpenPanel*   mOpenPanel;
   nsFilePicker*  mFilePicker;
 }
 - (void) setPopUpButton:(NSPopUpButton*)aPopUpButton;
 - (void) setOpenPanel:(NSOpenPanel*)aOpenPanel;
 - (void) setFilePicker:(nsFilePicker*)aFilePicker;
 - (void) menuChangedItem:(NSNotification*)aSender;
 @end
 NS_IMPL_ISUPPORTS(nsFilePicker, nsIFilePicker)
 // We never want to call the secret show hidden files API unless the pref
 // has been set. Once the pref has been set we always need to call it even
 // if it disappears so that we stop showing hidden files if a user deletes
 // the pref. If the secret API was used once and things worked out it should
 // continue working for subsequent calls so the user is at no more risk.
 static void SetShowHiddenFileState(NSSavePanel* panel)
 {
   NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
   bool show = false;
   if (NS_SUCCEEDED(Preferences::GetBool(kShowHiddenFilesPref, &show))) {
     gCallSecretHiddenFileAPI = true;
   }
   if (gCallSecretHiddenFileAPI) {
     // invoke a method to get a Cocoa-internal nav view
     SEL navViewSelector = @selector(_navView);
     NSMethodSignature* navViewSignature = [panel methodSignatureForSelector:navViewSelector];
     if (!navViewSignature)
       return;
     NSInvocation* navViewInvocation = [NSInvocation invocationWithMethodSignature:navViewSignature];
     [navViewInvocation setSelector:navViewSelector];
     [navViewInvocation setTarget:panel];
     [navViewInvocation invoke];
     // get the returned nav view
     id navView = nil;
     [navViewInvocation getReturnValue:&navView];
     // invoke the secret show hidden file state method on the nav view
     SEL showHiddenFilesSelector = @selector(setShowsHiddenFiles:);
     NSMethodSignature* showHiddenFilesSignature = [navView methodSignatureForSelector:showHiddenFilesSelector];
     if (!showHiddenFilesSignature)
       return;
     NSInvocation* showHiddenFilesInvocation = [NSInvocation invocationWithMethodSignature:showHiddenFilesSignature];
     [showHiddenFilesInvocation setSelector:showHiddenFilesSelector];
     [showHiddenFilesInvocation setTarget:navView];
     [showHiddenFilesInvocation setArgument:&show atIndex:2];
     [showHiddenFilesInvocation invoke];
   }
   NS_OBJC_END_TRY_ABORT_BLOCK;
 }
 nsFilePicker::nsFilePicker()
 : mSelectedTypeIndex(0)
 {
 }
 nsFilePicker::~nsFilePicker()
 {
 }
 void
 nsFilePicker::InitNative(nsIWidget *aParent, const nsAString& aTitle)
 {
   mTitle = aTitle;
 }
 NSView* nsFilePicker::GetAccessoryView()
 {
   NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NIL;
   NSView* accessoryView = [[[NSView alloc] initWithFrame:NSMakeRect(0, 0, 0, 0)] autorelease];
   // Set a label's default value.
   NSString* label = @"Format:";
   // Try to get the localized string.
   nsCOMPtr<nsIStringBundleService> sbs = do_GetService(NS_STRINGBUNDLE_CONTRACTID);
   nsCOMPtr<nsIStringBundle> bundle;
   nsresult rv = sbs->CreateBundle("chrome://global/locale/filepicker.properties", getter_AddRefs(bundle));
   if (NS_SUCCEEDED(rv)) {
     nsXPIDLString locaLabel;
     bundle->GetStringFromName(NS_LITERAL_STRING("formatLabel").get(),
 			      getter_Copies(locaLabel));
     if (locaLabel) {
       label = [NSString stringWithCharacters:reinterpret_cast<const unichar*>(locaLabel.get())
                                       length:locaLabel.Length()];
     }
   }
   // set up label text field
   NSTextField* textField = [[[NSTextField alloc] init] autorelease];
   [textField setEditable:NO];
   [textField setSelectable:NO];
   [textField setDrawsBackground:NO];
   [textField setBezeled:NO];
   [textField setBordered:NO];
   [textField setFont:[NSFont labelFontOfSize:13.0]];
   [textField setStringValue:label];
   [textField setTag:0];
   [textField sizeToFit];
   // set up popup button
   NSPopUpButton* popupButton = [[[NSPopUpButton alloc] initWithFrame:NSMakeRect(0, 0, 0, 0) pullsDown:NO] autorelease];
   uint32_t numMenuItems = mTitles.Length();
   for (uint32_t i = 0; i < numMenuItems; i++) {
     const nsString& currentTitle = mTitles[i];
     NSString *titleString;
     if (currentTitle.IsEmpty()) {
       const nsString& currentFilter = mFilters[i];
       titleString = [[NSString alloc] initWithCharacters:reinterpret_cast<const unichar*>(currentFilter.get())
                                                   length:currentFilter.Length()];
     }
     else {
       titleString = [[NSString alloc] initWithCharacters:reinterpret_cast<const unichar*>(currentTitle.get())
                                                   length:currentTitle.Length()];
     }
     [popupButton addItemWithTitle:titleString];
     [titleString release];
   }
   if (mSelectedTypeIndex >= 0 && (uint32_t)mSelectedTypeIndex < numMenuItems)
     [popupButton selectItemAtIndex:mSelectedTypeIndex];
   [popupButton setTag:kSaveTypeControlTag];
   [popupButton sizeToFit]; // we have to do sizeToFit to get the height calculated for us
   // This is just a default width that works well, doesn't truncate the vast majority of
   // things that might end up in the menu.
   [popupButton setFrameSize:NSMakeSize(180, [popupButton frame].size.height)];
   // position everything based on control sizes with kAccessoryViewPadding pix padding
   // on each side kAccessoryViewPadding pix horizontal padding between controls
   float greatestHeight = [textField frame].size.height;
   if ([popupButton frame].size.height > greatestHeight)
     greatestHeight = [popupButton frame].size.height;
   float totalViewHeight = greatestHeight + kAccessoryViewPadding * 2;
   float totalViewWidth  = [textField frame].size.width + [popupButton frame].size.width + kAccessoryViewPadding * 3;
   [accessoryView setFrameSize:NSMakeSize(totalViewWidth, totalViewHeight)];
   float textFieldOriginY = ((greatestHeight - [textField frame].size.height) / 2 + 1) + kAccessoryViewPadding;
   [textField setFrameOrigin:NSMakePoint(kAccessoryViewPadding, textFieldOriginY)];
   float popupOriginX = [textField frame].size.width + kAccessoryViewPadding * 2;
   float popupOriginY = ((greatestHeight - [popupButton frame].size.height) / 2) + kAccessoryViewPadding;
   [popupButton setFrameOrigin:NSMakePoint(popupOriginX, popupOriginY)];
   [accessoryView addSubview:textField];
   [accessoryView addSubview:popupButton];
   return accessoryView;
   NS_OBJC_END_TRY_ABORT_BLOCK_NIL;
 }
 // Display the file dialog
 NS_IMETHODIMP nsFilePicker::Show(int16_t *retval)
 {
   NS_ENSURE_ARG_POINTER(retval);
   *retval = returnCancel;
   int16_t userClicksOK = returnCancel;
 // Random questions from DHH:
 //
 // Why do we pass mTitle, mDefault to the functions?  Can GetLocalFile. PutLocalFile,
 // and GetLocalFolder get called someplace else?  It generates a bunch of warnings
 // as it is right now.
 //
 // I think we could easily combine GetLocalFile and GetLocalFolder together, just
 // setting panel pick options based on mMode.  I didn't do it here b/c I wanted to
 // make this look as much like Carbon nsFilePicker as possible.
   mFiles.Clear();
   nsCOMPtr<nsIFile> theFile;
   switch (mMode)
   {
     case modeOpen:
       userClicksOK = GetLocalFiles(mTitle, false, mFiles);
       break;
     case modeOpenMultiple:
       userClicksOK = GetLocalFiles(mTitle, true, mFiles);
       break;
     case modeSave:
       userClicksOK = PutLocalFile(mTitle, mDefault, getter_AddRefs(theFile));
       break;
     case modeGetFolder:
       userClicksOK = GetLocalFolder(mTitle, getter_AddRefs(theFile));
       break;
     default:
       NS_ERROR("Unknown file picker mode");
       break;
   }
   if (theFile)
     mFiles.AppendObject(theFile);
   *retval = userClicksOK;
   return NS_OK;
 }
 static
 void UpdatePanelFileTypes(NSOpenPanel* aPanel, NSArray* aFilters)
 {
   // If we show all file types, also "expose" bundles' contents.
   [aPanel setTreatsFilePackagesAsDirectories:!aFilters];
   [aPanel setAllowedFileTypes:aFilters];
 }
 @implementation NSPopUpButtonObserver
 - (void) setPopUpButton:(NSPopUpButton*)aPopUpButton
 {
   mPopUpButton = aPopUpButton;
 }
 - (void) setOpenPanel:(NSOpenPanel*)aOpenPanel
 {
   mOpenPanel = aOpenPanel;
 }
 - (void) setFilePicker:(nsFilePicker*)aFilePicker
 {
   mFilePicker = aFilePicker;
 }
 - (void) menuChangedItem:(NSNotification *)aSender
 {
   NS_OBJC_BEGIN_TRY_ABORT_BLOCK_RETURN;
   int32_t selectedItem = [mPopUpButton indexOfSelectedItem];
   if (selectedItem < 0) {
     return;
   }
   mFilePicker->SetFilterIndex(selectedItem);
   UpdatePanelFileTypes(mOpenPanel, mFilePicker->GetFilterList());
   NS_OBJC_END_TRY_ABORT_BLOCK_RETURN();
 }
 @end
 // Use OpenPanel to do a GetFile. Returns |returnOK| if the user presses OK in the dialog.
 int16_t
 nsFilePicker::GetLocalFiles(const nsString& inTitle, bool inAllowMultiple, nsCOMArray<nsIFile>& outFiles)
 {
   NS_OBJC_BEGIN_TRY_ABORT_BLOCK_RETURN;
   int16_t retVal = (int16_t)returnCancel;
   NSOpenPanel *thePanel = [NSOpenPanel openPanel];
   SetShowHiddenFileState(thePanel);
   // Set the options for how the get file dialog will appear
   SetDialogTitle(inTitle, thePanel);
   [thePanel setAllowsMultipleSelection:inAllowMultiple];
   [thePanel setCanSelectHiddenExtension:YES];
   [thePanel setCanChooseDirectories:NO];
   [thePanel setCanChooseFiles:YES];
   [thePanel setResolvesAliases:YES]; //this is default - probably doesn't need to be set
   // Get filters
   // filters may be null, if we should allow all file types.
   NSArray *filters = GetFilterList();
   // set up default directory
   NSString *theDir = PanelDefaultDirectory();
   // if this is the "Choose application..." dialog, and no other start
   // dir has been set, then use the Applications folder.
   if (!theDir) {
     if (filters && [filters count] == 1 &&
         [(NSString *)[filters objectAtIndex:0] isEqualToString:@"app"])
       theDir = @"/Applications/";
     else
       theDir = @"";
   }
   if (theDir) {
     [thePanel setDirectoryURL:[NSURL fileURLWithPath:theDir isDirectory:YES]];
   }
   int result;
   nsCocoaUtils::PrepareForNativeAppModalDialog();
   if (mFilters.Length() > 1) {
     // [NSURL initWithString:] (below) throws an exception if URLString is nil.
     NSPopUpButtonObserver* observer = [[NSPopUpButtonObserver alloc] init];
     NSView* accessoryView = GetAccessoryView();
     [thePanel setAccessoryView:accessoryView];
     [observer setPopUpButton:[accessoryView viewWithTag:kSaveTypeControlTag]];
     [observer setOpenPanel:thePanel];
     [observer setFilePicker:this];
     [[NSNotificationCenter defaultCenter]
       addObserver:observer
       selector:@selector(menuChangedItem:)
       name:NSMenuWillSendActionNotification object:nil];
     UpdatePanelFileTypes(thePanel, filters);
     result = [thePanel runModal];
     [[NSNotificationCenter defaultCenter] removeObserver:observer];
     [observer release];
   } else {
     // If we show all file types, also "expose" bundles' contents.
     if (!filters) {
       [thePanel setTreatsFilePackagesAsDirectories:YES];
     }
     [thePanel setAllowedFileTypes:filters];
     result = [thePanel runModal];
   }
   nsCocoaUtils::CleanUpAfterNativeAppModalDialog();
   if (result == NSFileHandlingPanelCancelButton)
     return retVal;
   // Converts data from a NSArray of NSURL to the returned format.
   // We should be careful to not call [thePanel URLs] more than once given that
   // it creates a new array each time.
   // We are using Fast Enumeration, thus the NSURL array is created once then
   // iterated.
   for (NSURL* url in [thePanel URLs]) {
     if (!url) {
       continue;
     }
     nsCOMPtr<nsIFile> localFile;
     NS_NewLocalFile(EmptyString(), true, getter_AddRefs(localFile));
     nsCOMPtr<nsILocalFileMac> macLocalFile = do_QueryInterface(localFile);
     if (macLocalFile && NS_SUCCEEDED(macLocalFile->InitWithCFURL((CFURLRef)url))) {
       outFiles.AppendObject(localFile);
     }
   }
   if (outFiles.Count() > 0)
     retVal = returnOK;
   return retVal;
   NS_OBJC_END_TRY_ABORT_BLOCK_RETURN(0);
 }
 // Use OpenPanel to do a GetFolder. Returns |returnOK| if the user presses OK in the dialog.
 int16_t
 nsFilePicker::GetLocalFolder(const nsString& inTitle, nsIFile** outFile)
 {
   NS_OBJC_BEGIN_TRY_ABORT_BLOCK_RETURN;
   NS_ASSERTION(outFile, "this protected member function expects a null initialized out pointer");
   int16_t retVal = (int16_t)returnCancel;
   NSOpenPanel *thePanel = [NSOpenPanel openPanel];
   SetShowHiddenFileState(thePanel);
   // Set the options for how the get file dialog will appear
   SetDialogTitle(inTitle, thePanel);
   [thePanel setAllowsMultipleSelection:NO];   //this is default -probably doesn't need to be set
   [thePanel setCanSelectHiddenExtension:YES];
   [thePanel setCanChooseDirectories:YES];
   [thePanel setCanChooseFiles:NO];
   [thePanel setResolvesAliases:YES];          //this is default - probably doesn't need to be set
   [thePanel setCanCreateDirectories:YES];
   // packages != folders
   [thePanel setTreatsFilePackagesAsDirectories:NO];
   // set up default directory
   NSString *theDir = PanelDefaultDirectory();
   if (theDir) {
     [thePanel setDirectoryURL:[NSURL fileURLWithPath:theDir isDirectory:YES]];
   }
   nsCocoaUtils::PrepareForNativeAppModalDialog();
   int result = [thePanel runModal];
   nsCocoaUtils::CleanUpAfterNativeAppModalDialog();
   if (result == NSFileHandlingPanelCancelButton)
     return retVal;
   // get the path for the folder (we allow just 1, so that's all we get)
   NSURL *theURL = [[thePanel URLs] objectAtIndex:0];
   if (theURL) {
     nsCOMPtr<nsIFile> localFile;
     NS_NewLocalFile(EmptyString(), true, getter_AddRefs(localFile));
     nsCOMPtr<nsILocalFileMac> macLocalFile = do_QueryInterface(localFile);
     if (macLocalFile && NS_SUCCEEDED(macLocalFile->InitWithCFURL((CFURLRef)theURL))) {
       *outFile = localFile;
       NS_ADDREF(*outFile);
       retVal = returnOK;
     }
   }
   return retVal;
   NS_OBJC_END_TRY_ABORT_BLOCK_RETURN(0);
 }
 // Returns |returnOK| if the user presses OK in the dialog.
 int16_t
 nsFilePicker::PutLocalFile(const nsString& inTitle, const nsString& inDefaultName, nsIFile** outFile)
 {
   NS_OBJC_BEGIN_TRY_ABORT_BLOCK_RETURN;
   NS_ASSERTION(outFile, "this protected member function expects a null initialized out pointer");
   int16_t retVal = returnCancel;
   NSSavePanel *thePanel = [NSSavePanel savePanel];
   SetShowHiddenFileState(thePanel);
   SetDialogTitle(inTitle, thePanel);
   // set up accessory view for file format options
   NSView* accessoryView = GetAccessoryView();
   [thePanel setAccessoryView:accessoryView];
   // set up default file name
   NSString* defaultFilename = [NSString stringWithCharacters:(const unichar*)inDefaultName.get() length:inDefaultName.Length()];
   // set up default directory
   NSString *theDir = PanelDefaultDirectory();
   if (theDir) {
     [thePanel setDirectoryURL:[NSURL fileURLWithPath:theDir isDirectory:YES]];
   }
   // load the panel
   nsCocoaUtils::PrepareForNativeAppModalDialog();
   [thePanel setNameFieldStringValue:defaultFilename];
   int result = [thePanel runModal];
   nsCocoaUtils::CleanUpAfterNativeAppModalDialog();
   if (result == NSFileHandlingPanelCancelButton)
     return retVal;
   // get the save type
   NSPopUpButton* popupButton = [accessoryView viewWithTag:kSaveTypeControlTag];
   if (popupButton) {
     mSelectedTypeIndex = [popupButton indexOfSelectedItem];
   }
   NSURL* fileURL = [thePanel URL];
   if (fileURL) {
     nsCOMPtr<nsIFile> localFile;
     NS_NewLocalFile(EmptyString(), true, getter_AddRefs(localFile));
     nsCOMPtr<nsILocalFileMac> macLocalFile = do_QueryInterface(localFile);
     if (macLocalFile && NS_SUCCEEDED(macLocalFile->InitWithCFURL((CFURLRef)fileURL))) {
       *outFile = localFile;
       NS_ADDREF(*outFile);
       // We tell if we are replacing or not by just looking to see if the file exists.
       // The user could not have hit OK and not meant to replace the file.
       if ([[NSFileManager defaultManager] fileExistsAtPath:[fileURL path]])
         retVal = returnReplace;
       else
         retVal = returnOK;
     }
   }
   return retVal;
   NS_OBJC_END_TRY_ABORT_BLOCK_RETURN(0);
 }
 NSArray *
 nsFilePicker::GetFilterList()
 {
   NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NIL;
   if (!mFilters.Length()) {
     return nil;
   }
   if (mFilters.Length() <= (uint32_t)mSelectedTypeIndex) {
     NS_WARNING("An out of range index has been selected. Using the first index instead.");
     mSelectedTypeIndex = 0;
   }
   const nsString& filterWide = mFilters[mSelectedTypeIndex];
   if (!filterWide.Length()) {
     return nil;
   }
   if (filterWide.Equals(NS_LITERAL_STRING("*"))) {
     return nil;
   }
   // The extensions in filterWide are in the format "*.ext" but are expected
   // in the format "ext" by NSOpenPanel. So we need to filter some characters.
   NSMutableString* filterString = [[[NSMutableString alloc] initWithString:
                                     [NSString stringWithCharacters:reinterpret_cast<const unichar*>(filterWide.get())
                                                             length:filterWide.Length()]] autorelease];
   NSCharacterSet *set = [NSCharacterSet characterSetWithCharactersInString:@". *"];
   NSRange range = [filterString rangeOfCharacterFromSet:set];
   while (range.length) {
     [filterString replaceCharactersInRange:range withString:@""];
     range = [filterString rangeOfCharacterFromSet:set];
   }
   return [[[NSArray alloc] initWithArray:
            [filterString componentsSeparatedByString:@";"]] autorelease];
   NS_OBJC_END_TRY_ABORT_BLOCK_NIL;
 }
 // Sets the dialog title to whatever it should be.  If it fails, eh,
 // the OS will provide a sensible default.
 void
 nsFilePicker::SetDialogTitle(const nsString& inTitle, id aPanel)
 {
   NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
   [aPanel setTitle:[NSString stringWithCharacters:(const unichar*)inTitle.get() length:inTitle.Length()]];
   NS_OBJC_END_TRY_ABORT_BLOCK;
 }
 // Converts path from an nsIFile into a NSString path
 // If it fails, returns an empty string.
 NSString *
 nsFilePicker::PanelDefaultDirectory()
 {
   NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NIL;
   NSString *directory = nil;
   if (mDisplayDirectory) {
     nsAutoString pathStr;
     mDisplayDirectory->GetPath(pathStr);
     directory = [[[NSString alloc] initWithCharacters:reinterpret_cast<const unichar*>(pathStr.get())
                                                length:pathStr.Length()] autorelease];
   }
   return directory;
   NS_OBJC_END_TRY_ABORT_BLOCK_NIL;
 }
 NS_IMETHODIMP nsFilePicker::GetFile(nsIFile **aFile)
 {
   NS_ENSURE_ARG_POINTER(aFile);
   *aFile = nullptr;
   // just return the first file
   if (mFiles.Count() > 0) {
     *aFile = mFiles.ObjectAt(0);
     NS_IF_ADDREF(*aFile);
   }
   return NS_OK;
 }
 NS_IMETHODIMP nsFilePicker::GetFileURL(nsIURI **aFileURL)
 {
   NS_ENSURE_ARG_POINTER(aFileURL);
   *aFileURL = nullptr;
   if (mFiles.Count() == 0)
     return NS_OK;
   return NS_NewFileURI(aFileURL, mFiles.ObjectAt(0));
 }
 NS_IMETHODIMP nsFilePicker::GetFiles(nsISimpleEnumerator **aFiles)
 {
   return NS_NewArrayEnumerator(aFiles, mFiles);
 }
 NS_IMETHODIMP nsFilePicker::SetDefaultString(const nsAString& aString)
 {
   mDefault = aString;
   return NS_OK;
 }
 NS_IMETHODIMP nsFilePicker::GetDefaultString(nsAString& aString)
 {
   return NS_ERROR_FAILURE;
 }
 // The default extension to use for files
 NS_IMETHODIMP nsFilePicker::GetDefaultExtension(nsAString& aExtension)
 {
   aExtension.Truncate();
   return NS_OK;
 }
 NS_IMETHODIMP nsFilePicker::SetDefaultExtension(const nsAString& aExtension)
 {
   return NS_OK;
 }
 // Append an entry to the filters array
 NS_IMETHODIMP
 nsFilePicker::AppendFilter(const nsAString& aTitle, const nsAString& aFilter)
 {
   // "..apps" has to be translated with native executable extensions.
   if (aFilter.EqualsLiteral("..apps")) {
     mFilters.AppendElement(NS_LITERAL_STRING("*.app"));
   } else {
     mFilters.AppendElement(aFilter);
   }
   mTitles.AppendElement(aTitle);
   return NS_OK;
 }
 // Get the filter index - do we still need this?
 NS_IMETHODIMP nsFilePicker::GetFilterIndex(int32_t *aFilterIndex)
 {
   *aFilterIndex = mSelectedTypeIndex;
   return NS_OK;
 }
 // Set the filter index - do we still need this?
 NS_IMETHODIMP nsFilePicker::SetFilterIndex(int32_t aFilterIndex)
 {
   mSelectedTypeIndex = aFilterIndex;
   return NS_OK;
 }

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widget/cocoa/nsFilePicker.mm@7e26c7da4463 (annotated)

widget/cocoa/nsFilePicker.mm