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Re: no topLevelObjects in .gorm file?


From: Gregory Casamento
Subject: Re: no topLevelObjects in .gorm file?
Date: Thu, 29 Aug 2024 17:20:53 -0400

I fixed this issue and ran your test.  Take a look and see if it works for you.    Thanks again for your help. 



On Thu, Aug 29, 2024 at 06:50 Sebastian Reitenbach <sebastia@l00-bugdead-prods.de> wrote:
On Thursday, August 29, 2024 12:11 CEST, "H. Nikolaus Schaller" <hns@goldelico.com> wrote:

> Hi,
> applicationDidFinishLaunching is called after loading the app (but not after loading documents).
> To do the same after loading a document you must use an awakeFromNib method in your Document class.
>
> The reason is as you an see from the log that your characterWindow isn't connected yet to the window.

indeed, moving that into the awakeFromNib:

      [characterWindow makeKeyAndOrderFront: self];     
      NSLog(@"awakeFromNib: the key Window: %@", [[NSApplication sharedApplication] keyWindow]);

make the window pop up. Unfortunately also on startup of the application, whereas I only want it to be
around once I either load or create a new document. Something to figure out.

When I edit the document to edit the name of the character, I have this:

- (IBAction)nameChanged:(id)sender {
    NSString *newName = [self.name stringValue];
    [self.character setValue:newName forKey:@"name"];

    NSLog(@"calling updateChangeCount!!!");
    [self updateChangeCount:NSChangeDone];
    NSLog(@"isDocumentEdited? %i", [super isDocumentEdited]);
    [self checkIfWindowIsKey];  // Check if the window is key
}

- (void)checkIfWindowIsKey {
// commented out approach doesn't work only calling my window directly as below
//    if ([[self windowForSheet] isKeyWindow]) {
    if ([characterWindow isKeyWindow]) {
        NSLog(@"The document window is the key window.");
    } else {
        NSLog(@"The document window is not the key window.");
    }
}

creates output:

Character's name changed to: Bula
calling updateChangeCount!!!
isDocumentEdited? 1
The document window is the key window.

However, the save, save as, .... menu items, they all stay grayed out.

when I override the
- (BOOL)isDocumentEdited {
    return YES;
}

then the "save all" menu item is active, and I can save the file. But "save", save as... stay gray.
Somehow, I'm not properly marking the document as "dirty" ?

I guess probably something similarly simple and stupid ;)

thanks,
Sebastian

>
> BR,
> Nikolaus
>
> > Am 29.08.2024 um 14:34 schrieb Sebastian Reitenbach <sebastia@l00-bugdead-prods.de>:
> >
> > Hi Nikolaus,
> >
> > On Thursday, August 29, 2024 09:54 CEST, "H. Nikolaus Schaller" <hns@goldelico.com> wrote:
> >
> >> Hi,
> >> there may be a completely different approach:
> >>
> >> - add an IBOutlet (e.g. called mainWindow) to your NSDocument for your NSWindow and connect it.
> >> - then you get a pointer mainWindow that can be accessed in -awakeFromNib; for your makeKeyAndOrderFront:
> >>
> >> This avoids scanning the top level objects.
> >
> > thank you. That seems to do the trick for the simple test App I created. After creating IBOutlet and wiring it up in Gorm, I added the following at the end of applicationDidFinishLaunching:
> >
> >      [mainWindow makeKeyAndOrderFront: self];     
> >      NSLog(@"the key Window: %@", [[NSApplication sharedApplication] keyWindow]);
> >
> > which spits out:
> > 2024-08-29 11:49:14.793 Test5[72122:2615662661832] the key Window: <NSWindow: 0x2609f549008>Number: 4 Title: Test5 Window
> >
> > However, that same approach doesn't work in my Document based app. I read through David's "Cocoa Programming, Developers Handbook", and now I'm working with ChatGPT as my mentor here, since never done that before, and don't have any Mac programming experience ;)
> > What I told ChatGPT I want to do: MVC Document based app, that should have a central .gorm file for menu and other central stuff, and then .gorm files for each of different types of documents to be handled.
> >
> > Now I ended up with:
> > * central .gorm file containing my menu, connected to an AppDelegate, that loads the Gorm file.
> > * a DocumentController class (NSDocumentController subclass), which based on what types of documents I want to create new, calls out one of my two Document classes (NSDocument subclasses). To each of these NSDocument subclasses, I've separate .gorm files.
> >
> > Opening the Window with your approach works so far that the window opens, but it doesn't become the key window:
> >
> > With this in the makeWindowControllers method:
> >
> >  [characterWindow makeKeyAndOrderFront:self];
> >  NSLog(@"THE KEY WINDOW: %@", [[NSApplication sharedApplication] keyWindow]);
> >
> > it opens the Window, but logs:
> > THE KEY WINDOW: (null)
> >
> > With above output, it's the only window (besides the menu), that the application has, and it takes
> > input, but I wonder why the application doesn't even have a keyWindow at all?
> > I thought at least one should always be Key, and with that firstResponder, but may have misunderstood?
> >
> > ChatGPT insists on going through the topLevelObjects. But now, I'm not sure, even if that works,
> > if it then would make the window key?
> >
> > Sebastian
> >>
> >> Hope this helps,
> >> Nikolaus
> >>
> >>
> >>> Am 29.08.2024 um 12:06 schrieb Sebastian Reitenbach <sebastia@l00-bugdead-prods.de>:
> >>>
> >>> Hi,
> >>>
> >>> I'm trying to create a document based app with ProjectCenter and Gorm, following different advices,
> >>> it boils down to use NSBundles loadNibNamed: owner: topLevelObjects:
> >>> Then afterward, find the window in the topLevelObjects, that I want to have my key window, and make it makeKeyAndOrderFront:
> >>>
> >>> Whatever I do, the topLevelObjects I get returned are empty.
> >>>
> >>> To demonstrate, I just created a New Application in ProjectCenter, opened the Interface in Gorm, and
> >>> dragged a NSWindow into the Objects. Example code here: https://github.com/buzzdeee/testTopLevelObjects
> >>>
> >>> Then added this to AppController.m applicationDidFinishLaunching:
> >>>
> >>>  NSLog(@"here in AppController  applicationDidFinishLaunching...");
> >>>
> >>> NSBundle *mainBundle = [NSBundle mainBundle];
> >>> NSArray *topLevelObjects = nil;
> >>> NSLog(@"going to load .gorm file");
> >>> BOOL success = [mainBundle loadNibNamed:@"Test5" owner:self topLevelObjects:&topLevelObjects]; 
> >>> NSLog(@"topLevelObjects: %@", topLevelObjects);
> >>>   if (success) {
> >>>       NSLog(@"Successfully loaded Test5.gorm");
> >>>
> >>>       if (topLevelObjects == nil || [topLevelObjects count] == 0) {
> >>>           NSLog(@"No top-level objects were loaded.");
> >>>       } else {
> >>>           NSLog(@"Top-level objects: %@", topLevelObjects);
> >>>           for (id obj in topLevelObjects) {
> >>>               NSLog(@"Loaded object: %@", NSStringFromClass([obj class]));
> >>>           }
> >>>       }
> >>>   } else {
> >>>       NSLog(@"Failed to load Test5.gorm");
> >>>   }
> >>> }
> >>>
> >>> The output is:
> >>> 2024-08-29 09:20:30.103 Test5[81465:10651290713480] here in AppController  applicationDidFinishLaunching...
> >>> 2024-08-29 09:20:30.104 Test5[81465:10651290713480] going to load .gorm file
> >>> 2024-08-29 09:20:30.113 Test5[81465:10651290713480] topLevelObjects: (null)
> >>> 2024-08-29 09:20:30.113 Test5[81465:10651290713480] Successfully loaded Test5.gorm
> >>> 2024-08-29 09:20:30.113 Test5[81465:10651290713480] No top-level objects were loaded.
> >>>
> >>> When in Gorm, I enable "Visible at launch" for the NSWindow object, output changes to:
> >>>
> >>> 2024-08-29 09:13:57.990 Test5[1172:4346915151048] here in AppController  applicationDidFinishLaunching...
> >>> 2024-08-29 09:13:57.990 Test5[1172:4346915151048] going to load .gorm file
> >>> 2024-08-29 09:13:57.998 Test5[1172:4346915151048] Exception occurred while loading model: Index 3 is out of range 3 (in 'objectAtIndex:')
> >>> 2024-08-29 09:13:57.998 Test5[1172:4346915151048] Failed to load Gorm
> >>> 2024-08-29 09:13:57.998 Test5[1172:4346915151048] topLevelObjects: (null)
> >>> 2024-08-29 09:13:57.998 Test5[1172:4346915151048] Failed to load Test5.gorm
> >>>
> >>> However, the .gorm file still loads, and I get to see the menu and window. But I guess that is because, NSMainNibFile = "Test5.gorm"; in my Info.plist.
> >>>
> >>> In any case, shouldn't there be some topLevelObjects in the .gorm file?
> >>>
> >>> latest gnustep-make/base/gui/back/objc2/ProjectCenter releases, Gorm-1.3.1
> >>>
> >>> thanks,
> >>> Sebastian
> >>>
> >>>
> >>
> >
>



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