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Issue #1751 -- Remove cocoa and uikit widget support code

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Moonchild 2021-05-08 21:00:49 +00:00 • committed by roytam1
commit 3a4e65f1de
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widget/cocoa/nsFilePicker.mm
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/* -*- 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 "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(u"formatLabel", 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 allowed types; this prevents the extension from being selected
// use the UTI for the file type to allow alternate extensions (e.g., jpg vs. jpeg)
NSString* extension = defaultFilename.pathExtension;
if (extension.length != 0) {
CFStringRef type = UTTypeCreatePreferredIdentifierForTag(kUTTagClassFilenameExtension, (CFStringRef)extension, NULL);
if (type) {
thePanel.allowedFileTypes = @[(NSString*)type];
CFRelease(type);
} else {
// if there's no UTI for the file extension, use the extension itself.
thePanel.allowedFileTypes = @[extension];
}
}
// Allow users to change the extension.
thePanel.allowsOtherFileTypes = YES;
// 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()]];
if (!mOkButtonLabel.IsEmpty()) {
[aPanel setPrompt:[NSString stringWithCharacters:(const unichar*)mOkButtonLabel.get() length:mOkButtonLabel.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;
}