On Feb 24, 2013, at 6:33 AM, Graham Cox <graham....@bigpond.com> wrote:
> If you've done all that and it's still not working as expected, maybe there's
> a subtle bug in the code that animates between the popover and the new
> window. This being newish code, it's possible.
I've done all that, and I believe it is a bug. Now that I've found a
workaround, I will report it to Apple.
> I have frequently found that Apple's own sample code isn't always as thorough
> as it could be, so just using sample code as boilerplate may not have
> considered all these issues; it might not be a bug but just something the
> sample code didn't bother with.
Understood; that's my experience, too. Given the awkwardness of the workaround,
however, it seems more likely that it is a bug.
Here's the workaround I came up with, tested in Apple's Popover example but not
yet tested in my own application. Implement the -windowDidBecomeKey: delegate
method in the main window's window controller, as follows:
- (void)windowDidBecomeKey:(NSNotification *)notification {
if ([[notification object] isEqual:detachedWindow]) {
// Disable delegates to avoid infinite loop.
[[self window] setDelegate:nil];
[[notification object] setDelegate:nil];
// Make main window key, then make detached popover window key.
[[self window] performSelector:@selector(makeKeyAndOrderFront:)
withObject:nil afterDelay:0.0];
[[notification object] performSelector:@selector(makeKeyAndOrderFront:)
withObject:nil afterDelay:0.0];
// Re-enable delegates.
[[self window] performSelector:@selector(setDelegate:) withObject:(id
<NSWindowDelegate>)self afterDelay:0.0];
[[notification object] performSelector:@selector(setDelegate:)
withObject:self afterDelay:0.0];
}
If you want to test this yourself in the Popover example, be sure to connect
the delegate attribute of the popover window in MainMenu.xib to
MyWindowController, and add a date picker to the view in PopoverView.xib.
--
Bill Cheeseman - b...@cheeseman.name
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