NSPopupMenuButton not working

[Eric VERGNAUD]

Hi,

I'm integrating Cocoa UI in a Carbon app.

I'm creating UI elements on the fly. I'm struggling with NSPopupMenuButton.
The popup button displays properly, so does the popup, but the chosen item
in the popup doesn't get selected, and I don't receive any action from the
popup. Here is my code:

// subclassing NSPopup

@interface XCocoaDropDown : NSPopUpButton {
}
- (IBAction)controlActioned:(id)sender;


// creating the popup

NSRect rect = { { 100, 100 }, { 200, 24 } };
XCocoaDropDown* dropdown = [[XCocoaDropDown alloc] initWithFrame:rect];
[dropdown setTarget: dropdown ];
[dropdown setAction:@selector(controlActioned:)];

// filling the popup

long i;
for(i=0;i<3;i++)
{
[popup addItemWithTitle:@"Hello"];
NSMenuItem* item = [dropdown lastItem];
[dropdown setEnabled:true];
[item setTarget: dropdown ];
[item setAction:@selector(controlActioned:)];
}

Does anyone know why the above doesn't work ?

Is this a problem with Cocoa menus in Carbon apps ? I also noticed that the
spellcheck menu of a NSTextView did not act on the view, but I haven't made
further investigations yet.

Thanks,

Eric

[Eric VERGNAUD]

Ok,

I've dived a little deeper and found that selecting an item in the popup,
instead of calling the action target, sends a HICommand to the main Carbon
event target.

This looks like a bug, because obviously the app doesn't know what to do
with this.

Anyone got a clue ?

Eric

> Hi,
>
> I'm integrating Cocoa UI in a Carbon app.
>
> I'm creating UI elements on the fly. I'm struggling with NSPopupMenuButton.
> The popup button displays properly, so does the popup, but the chosen item
> in the popup doesn't get selected, and I don't receive any action from the
> popup. Here is my code:
>
> // subclassing NSPopup
>
> @interface XCocoaDropDown : NSPopUpButton {
> }
> - (IBAction)controlActioned:(id)sender;
>
>
> // creating the popup
>
> NSRect rect = { { 100, 100 }, { 200, 24 } };
> XCocoaDropDown* dropdown = [[XCocoaDropDown alloc] initWithFrame:rect];
> [dropdown setTarget: dropdown ];
> [dropdown setAction:@selector(controlActioned:)];
>
> // filling the popup
>
> long i;
> for(i=0;i<3;i++)
> {
> [popup addItemWithTitle:@"Hello"];
> NSMenuItem* item = [dropdown lastItem];
> [dropdown setEnabled:true];
> [item setTarget: dropdown ];
> [item setAction:@selector(controlActioned:)];
> }
>
> Does anyone know why the above doesn't work ?
>
> Is this a problem with Cocoa menus in Carbon apps ? I also noticed that the
> spellcheck menu of a NSTextView did not act on the view, but I haven't made
> further investigations yet.
>
> Thanks,
>
> Eric
>

[Eric VERGNAUD]

dans l'article BB88E3D5.11FD8%eric.vergnaud@wanadoo.fr, Eric VERGNAUD à
[email]eric.vergnaud@wanadoo.fr[/email] a écrit le 13/09/03 15:10*:

Ok, found the bug:

I was returning noErr in my main loop when receiving unhandled commands,
that is command without a HICommand in them. I changed it to return
eventNotHandledErr and now everything is ok.

What a relief.

> Ok,
>
> I've dived a little deeper and found that selecting an item in the popup,
> instead of calling the action target, sends a HICommand to the main Carbon
> event target.
>
> This looks like a bug, because obviously the app doesn't know what to do
> with this.
>
> Anyone got a clue ?
>
> Eric
>

>> Hi,
>>
>> I'm integrating Cocoa UI in a Carbon app.
>>
>> I'm creating UI elements on the fly. I'm struggling with NSPopupMenuButton.
>> The popup button displays properly, so does the popup, but the chosen item
>> in the popup doesn't get selected, and I don't receive any action from the
>> popup. Here is my code:
>>
>> // subclassing NSPopup
>>
>> @interface XCocoaDropDown : NSPopUpButton {
>> }
>> - (IBAction)controlActioned:(id)sender;
>>
>>
>> // creating the popup
>>
>> NSRect rect = { { 100, 100 }, { 200, 24 } };
>> XCocoaDropDown* dropdown = [[XCocoaDropDown alloc] initWithFrame:rect];
>> [dropdown setTarget: dropdown ];
>> [dropdown setAction:@selector(controlActioned:)];
>>
>> // filling the popup
>>
>> long i;
>> for(i=0;i<3;i++)
>> {
>> [popup addItemWithTitle:@"Hello"];
>> NSMenuItem* item = [dropdown lastItem];
>> [dropdown setEnabled:true];
>> [item setTarget: dropdown ];
>> [item setAction:@selector(controlActioned:)];
>> }
>>
>> Does anyone know why the above doesn't work ?
>>
>> Is this a problem with Cocoa menus in Carbon apps ? I also noticed that the
>> spellcheck menu of a NSTextView did not act on the view, but I haven't made
>> further investigations yet.
>>
>> Thanks,
>>
>> Eric
>>

>