Does anyone know why any attempts to show a second sheet immediately
after an NSOpenPanel has been dismissed causes the parent window to
disappear?
The user flow is as follows:
- Show Import Window
- Show NSOpenPanel via [panel beginSheetForDirectory...]
(Panel is properly displayed)
- User either accepts or cancels the file panel
- My openPanelDidEnd method is properly called with the correct result
from the File Panel
- If I now try showing a new sheet, my main Import Window will hide
and I'll be left with just my new sheet on the screen.
If I skip the File Panel operation, then my sheet is correctly shown,
so that's working properly. Since the File Panel is not completely
dismissed inside openPanelDidEnd I wonder if something weird isn't
going on with [NSApp beginSheet...] whereby it can't show the new
sheet because the File Panel is still being "rolled up" inside
openPanelDidEnd. NSApp appears to be smart enough to not let you show
to sheets on one window, I get a system beep when trying to do that,
but maybe it's confused here because the File Panel has been dismissed
but is still be animated while my code executes to show the second
sheet. Maybe there's a way to know when the File Panel has been full
dismissed?
Thoughts?
Thanks for any help,
Kenny
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