macOS Terminate App From Dock With Fadeout?

[Darkroom]

i've set up my own quit function with my app, that fades the window out before quitting. here is the code:

- (IBAction)quitApplication:(id)sender {
	SetSystemUIMode(kUIModeNormal, 0);
	timer = [[NSTimer scheduledTimerWithTimeInterval:0.02 target:self selector:@selector(allWindowsFadeOUT:) userInfo:nil repeats:YES] retain];
}

- (void)allWindowsFadeOUT:(NSTimer *)theTimer
	{
	if (([mainWindow alphaValue] > 0.0) || ([mainWindow2 alphaValue] > 0.0)){
	[mainWindow setAlphaValue:[mainWindow alphaValue] - 0.1];
	[mainWindow2 setAlphaValue:[mainWindow2 alphaValue] - 0.1];
	[aboutWindow setAlphaValue:[aboutWindow alphaValue] - 0.1];
	[[NSColorPanel sharedColorPanel] setAlphaValue:[[NSColorPanel sharedColorPanel] alphaValue] -0.1];
	}
	else
	{
	[timer invalidate];
    [timer release];
    timer = nil;
	[NSApp terminate:nil];
	}
}

it works from the menu bar and Command+Q as i added the key equivalent to the menu item. however, when i quit the app from the dock menu, it does a normal quit (no fadeout)... how can i make the dock menu's quit function reflect my own quit function?

 

[kainjow]

You shouldn't use a custom IBAction for quitting from the menu bar.

The proper way is to setup an NSApplication delegate, and in that delegate implement the applicationWillTerminate: method.

 

[Darkroom]

You shouldn't use a custom IBAction for quitting from the menu bar.

The proper way is to setup an NSApplication delegate, and in that delegate implement the applicationWillTerminate: method.

so i replace my IBAction with this:

- (void)applicationWillTerminate:(NSNotification *)aNotification {
	SetSystemUIMode(kUIModeNormal, 0);
	timer = [[NSTimer scheduledTimerWithTimeInterval:0.02 target:self selector:@selector(allWindowsFadeOUT:) userInfo:nil repeats:YES] retain];
}

- (void)allWindowsFadeOUT:(NSTimer *)theTimer 
    { 
    if (([mainWindow alphaValue] > 0.0) || ([mainWindow2 alphaValue] > 0.0)){ 
    [mainWindow setAlphaValue:[mainWindow alphaValue] - 0.1]; 
    [mainWindow2 setAlphaValue:[mainWindow2 alphaValue] - 0.1]; 
    [aboutWindow setAlphaValue:[aboutWindow alphaValue] - 0.1]; 
    [[NSColorPanel sharedColorPanel] setAlphaValue:[[NSColorPanel sharedColorPanel] alphaValue] -0.1]; 
    } 
    else 
    { 
    [timer invalidate]; 
    [timer release]; 
    timer = nil; 
    [NSApp terminate:nil]; 
    } 
}

?

 

[kainjow]

But you need to setup the NSApp delegate. Usually you do it through the MainMenu.nib but you can also do it via

[NSApp setDelegate:self];

 

[Darkroom]

But you need to setup the NSApp delegate. Usually you do it through the MainMenu.nib but you can also do it via

[NSApp setDelegate:self];

so i control+click the "File's Owner" in IB, and dragged a line to "Fade Controller", which has the new code (applicationWillTerminate), and selected Delegate... still quits normally. am i suppose to set up something else? and outlet?

sorry, i haven't worked with this project in a long time so i'm forgetting some things.

 

[kainjow]

You probably need to use applicationShouldTerminate: to delay the quit and then after the window has faded out, use [NSApp terminate:nil]; and that time allow the quit to go through.

 

[Darkroom]

You probably need to use applicationShouldTerminate: to delay the quit and then after the window has faded out, use [NSApp terminate:nil]; and that time allow the quit to go through.

the File's Owner delegate is set to FadeController:

FadeController.m:

- (void)applicationShouldTerminate:(NSNotification *)aNotification {
	SetSystemUIMode(kUIModeNormal, 0);
	timer = [[NSTimer scheduledTimerWithTimeInterval:0.02 target:self selector:@selector(allWindowsFadeOUT:) userInfo:nil repeats:YES] retain];
}

- (void)allWindowsFadeOUT:(NSTimer *)theTimer
	{
	if (([mainWindow alphaValue] > 0.0) || ([mainWindow2 alphaValue] > 0.0)){
	[mainWindow setAlphaValue:[mainWindow alphaValue] - 0.1];
	[mainWindow2 setAlphaValue:[mainWindow2 alphaValue] - 0.1];
	[aboutWindow setAlphaValue:[aboutWindow alphaValue] - 0.1];
	[[NSColorPanel sharedColorPanel] setAlphaValue:[[NSColorPanel sharedColorPanel] alphaValue] -0.1];
	}
	else
	{
	[timer invalidate];
    [timer release];
    timer = nil;
	[NSApp terminate:nil];
	}
}

still isn't working...

 

[kainjow]

What's not working? Please try to debug some of this yourself. You can use simple things like NSLog() to find out where things are being called or not, etc.