> On 26 Sep 2016, at 17:39, Adam Light <[email protected]> wrote:
>
> macOS Sierra added an automatic tabbing mechanism that is enabled for
> applications by default. This behavior is entirely inappropriate for our Qt
> 5.6 based application, and I'd like to be able to have my application opt-out
> of this behavior.
>
> https://developer.apple.com/library/content/releasenotes/AppKit/RN-AppKit/#10_12Window
> Tabbing describes the API behind this feature, and includes this:
> "The application should explicitly opt-out of automatic window tabbing by
> calling [NSWindow setAllowsAutomaticWindowTabbing:NO]"
>
> Does anyone know how I can do this in a Qt application? My understanding of
> Cocoa/Objective-C is minimal, and I have no idea where I would make such a
> call.
Hi, this should be doable. I’ve tested this as far as it compiles, but did not
have a test app at hand.
Create disableWindowTabbbing.mm with:
#import <AppKit/AppKit.h>
// Disables auto window tabbing where supported, otherwise a no-op.
void disableWindowTabbing()
{
if ([NSWindow respondsToSelector:@selector(allowsAutomaticWindowTabbing)]) {
NSWindow.allowsAutomaticWindowTabbing = NO;
}
}
Add it to the build (qmake example shown):
OBJECTIVE_SOURCES += disableWindowTabbbing.mm
LIBS += -framework AppKit
Then I think you can call it anywhere in main, before creating the window(s).
extern void disableWindowTabbing();
disableWindowTabbing();
Now perhaps Qt should disable this by default. We could do that during the
QGuiApplication constructor, giving apps that want to opt-in the opportunity
to do so afterwards.
- Morten
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