I have a custom popover control containing multiple sliders and textfields
(http://dl.dropbox.com/u/4920112/Screenshots/SliderPopover.PNG). When tabbing
through the textfields I get the following exception:
2012-03-15 12:19:42.805 SettingsBar[7232:603] *** Assertion failure in
+[LSPopupSliderView _findFirstKeyViewInDirection:forKeyLoopGroupingView:],
/SourceCache/AppKit/AppKit-1138.32/AppKit.subproj/NSView.m:11103
2012-03-15 12:19:42.806 SettingsBar[7232:603] Exception detected while handling
key input.
2012-03-15 12:19:42.806 SettingsBar[7232:603] this method is supposed to only
be invoked on top level items
2012-03-15 12:19:42.809 SettingsBar[7232:603] (
0 CoreFoundation 0x9b07cb67 __raiseError + 231
1 libobjc.A.dylib 0x9859c149 objc_exception_throw
+ 155
2 CoreFoundation 0x9afe4369 +[NSException
raise:format:arguments:] + 137
3 Foundation 0x93049267 -[NSAssertionHandler
handleFailureInMethod:object:file:lineNumber:description:] + 116
4 AppKit 0x9ab46d93 +[NSView
_findFirstKeyViewInDirection:forKeyLoopGroupingView:] + 143
5 AppKit 0x9a5c8367
_replacementKeyViewAlongKeyViewPath + 595
6 AppKit 0x9a5c8107 -[NSView
nextValidKeyView] + 193
7 AppKit 0x9aa91e28 -[NSTextField
textDidEndEditing:] + 1053
8 Foundation 0x92f85e25
__-[NSNotificationCenter addObserver:selector:name:object:]_block_invoke_1 + 49
9 CoreFoundation 0x9afbccb3
___CFXNotificationPost_block_invoke_1 + 275
10 CoreFoundation 0x9af87a38 _CFXNotificationPost
+ 2776
11 Foundation 0x92f71012
-[NSNotificationCenter postNotificationName:object:userInfo:] + 92
12 AppKit 0x9aaee107
-[NSTextView(NSPrivate) _giveUpFirstResponder:] + 460
13 AppKit 0x9aad18be
-[NSTextView(NSKeyBindingCommands) insertTab:] + 506
14 CoreFoundation 0x9afd1de1 -[NSObject
performSelector:withObject:] + 65
15 AppKit 0x9a9cf328 -[NSResponder
doCommandBySelector:] + 260
16 AppKit 0x9aac54e2 -[NSTextView
doCommandBySelector:] + 152
17 AppKit 0x9aca2b81 -[NSTextInputContext
doCommandBySelector:] + 109
18 AppKit 0x9ac9ec72 -[NSTextInputContext
_handleCommand:] + 84
19 AppKit 0x9a8dcf67
-[NSKeyBindingManager(NSKeyBindingManager_MultiClients)
interpretEventAsCommand:forClient:] + 1721
20 AppKit 0x9aca361a -[NSTextInputContext
handleEvent:] + 1389
21 AppKit 0x9ab47636 -[NSView
interpretKeyEvents:] + 220
22 AppKit 0x9aab47ba -[NSTextView
keyDown:] + 676
23 AppKit 0x9a50f9c3 -[NSWindow
sendEvent:] + 10891
24 AppKit 0x9a4a70e7 -[NSApplication
sendEvent:] + 4788
25 AppKit 0x9a4386d5 -[NSApplication run]
+ 1007
26 AppKit 0x9a6cc261 NSApplicationMain +
1054
27 SettingsBar 0x0000251b main + 43
28 SettingsBar 0x000024e5 start + 53
29 ??? 0x00000003 0x0 + 3
)
Thinking I might solve the problem by explicitly setting up my own key-loop I
modified my construction and layout method thus:
- (void)setSliders:(NSArray *)sliders
{
// Adds all of the required sliders at once. Any sliders already existing
// will be removed and released. This method also has the advantage that
// the code to resize the view to accomodate the longest slider, will only
// run once.
for ( MCComplexSlider * slider in _sliders )
{
[slider removeFromSuperview];
}
[_sliders removeAllObjects];
NSTextField *prevTextField = nil;
for ( MCComplexSlider *slider in sliders )
{
[prevTextField setNextKeyView:slider.textField];
prevTextField = slider.textField;
[_sliders addObject:slider];
[self.view addSubview:slider];
}
[prevTextField setNextKeyView:[[sliders objectAtIndex:0] textField]];
[self layoutSliders];
}
No difference in behavior. I still get the exception and in both cases, after
the exception is raised and dumped to the console, the program continues to run
without incident and the key-loop is magically healed. Having an exception
dump to the console is not something I'm prepared to ignore. Does anyone have
an explanation for what is really going on here?
Thanks.
-Michael
_______________________________________________
Cocoa-dev mailing list ([email protected])
Please do not post admin requests or moderator comments to the list.
Contact the moderators at cocoa-dev-admins(at)lists.apple.com
Help/Unsubscribe/Update your Subscription:
https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com
This email sent to [email protected]
