ApplicationShouldTerminateAfterLastWindowClosed Doc-based Project Help?

Question

If I do the following:
( 1 ) create a NON-document based Cocoa Project:
( 2 ) add a button to the nib window, name it [DONE]
( 3 ) Control Click and Drag from [DONE] to the Window and select performClose: from the HUD
( 4 ) Run and click on [DONE] and applicationShouldTerminateAfterLastWindowClosed gets called, and the app quits just like it is supposed to. So this brief amount of code works GOOD..
// TestNoDocAppDelegate.h
// TestNoDoc
#import <Cocoa/Cocoa.h>
@interface TestNoDocAppDelegate : NSObject <NSApplicationDelegate> {
NSWindow *window;
@property (assign) IBOutlet NSWindow *window;
@end
// TestNoDocAppDelegate.m
// TestNoDoc
#import "TestNoDocAppDelegate.h"
@implementation TestNoDocAppDelegate
@synthesize window;
- (void)applicationDidFinishLaunching:(NSNotification *)aNotification {
// Insert code here to initialize your application
// If the user closes the last window in the application, make sure the application quits.
- (BOOL)applicationShouldTerminateAfterLastWindowClosed:(NSApplication *)sender {
NSLog(@"[4567] %@",@"applicationShouldTerminateAfterLastWindowClosed");
return YES;
@end
But if I try to get this to work with a Document based Project I cannot get applicationShouldTerminateAfterLastWindowClosed to trigger such that the application will quit.
I have tried creating an AppController Class (SubClass of NSController) then dragged it to the Nib Window, auto-created the AppController methods, and put the code there, and IB will not let me Control-Click-Drag from the File's Owner to the AppController instance in the Nib. The AppController won't highlight. So obviously I am doing something wrong...
When I tried this awakeFromNib in MyDocument Class I still could not get applicationShouldTerminateAfterLastWindowClosed to trigger.
- (void) awakeFromNib
NSLog(@"[4001] %@",[NSApp delegate]); // returned null
[NSApp setDelegate:self];
[[NSApp delegate] applicationShouldTerminateAfterLastWindowClosed:NSApp];
// this got called OK
NSLog(@"[4002] %@",[NSApp delegate]);
// returned non-null value (whether it was good or not, I don't know. I assume it was.)
I am missing something with either not having the right class, or probably with the Nib Window connections.
I'd be grateful for some help.
Bill Hernandez
Plano, Texas
Message was edited by: Bill_Hernandez
Message was edited by: Bill_Hernandez
Message was edited by: Bill_Hernandez

Answer 1

Bill_Hernandez wrote:
Steve Herman1 wrote:
Add an NSObject (the blue box) to MainMenu.xib.
Select the blue box and then the rightmost icon in the Inspector window.
Change the class from NSObject to TestDocAppDelegate.
Control-drag from File's Owner to the TestDocAppDelegate icon and connect it as the delegate.
I tried this before and when I control-click-drag (CCD) from File's Owner to TestDocAppDelegate, it will not allow me to do that. When I CCD over each instance icon in the xib window, the only one that highlights is the window icon.
Since you mention the "window icon" it sounds like you're working in the wrong xib file. I see the same behavior if I do what you've described in the MyDocument.xib.
But a Cocoa document-based project template comes with two xib files. You need to be doing this in MainMenu.xib not MyDocument.xib (the MainMenu.xib for a document-based app doesn't have a window icon by default).
I normally do this slightly different, but it achieves the same result (I think...)
( 1 ) Create New Project, call it TestDoc
( 2 ) Control-Click on the Classes Group,
and Add New File...
called TestDocAppDelegate
( 3 ) Do a Cmd-Shift-L to open the Library,
select the Classes TAB,
in the search field at the bottom type in the first few characters for the name
of the class you just created, in this case "TestD"
and only one Class is displayed in the list, TestDocAppDelegate.
( 4 ) Drag the TestDocAppDelegate icon to the xib window
{code}
Instead of using the ( 4 ) steps above, I created a new project and used your EXACT steps, and could not get that to work either.
I believe you're correct that your steps have the same effect as mine. I tried using your steps and it still works for me. In fact, I had never really played with the "Classes" tab in IB, so I learned something new. Thanks!
I think the problem is that you're adding your delegate object and attempting to make the connection in the wrong xib file.
Steve