I'm working on a custom control (a token field), and apparently I've messed
with the field editor somehow. When I (as user) click on my control, but not
in the focused NSTextView which is the field editor, and then type a character,
a message is sent to the field editor telling it to replace text in the range
{0, NSUIntegerMax} with the character that I typed. (I see this by debugging
into -[NSTextView(NSSharing) shouldChangeTextInRange:replacementString:].) An
range exception is raised because the field editor contains an empty string at
this time.
I suppose I could fix this by using a custom field editor and overriding that
method, but I want the root cause. Has anyone ever seen behavior like this?
As you can see from the edited call stack below, it all happens in Cocoa
methods. The NSTextView in lines 8-10 is indeed the field editor.
Thanks,
Jerry Krinock
An uncaught exception was raised
*** -[NSBigMutableString substringWithRange:]: Range or index out of bounds
0 CoreFoundation __raiseError + 231
1 libobjc.A.dylib objc_exception_throw + 155
2 CoreFoundation +[NSException raise:format:arguments:] + 137
3 CoreFoundation +[NSException raise:format:] + 57
4 Foundation -[NSString substringWithRange:] + 111
5 AppKit -[NSTextStorage(NSUndo)
_undoRedoAttributedSubstringFromRange:] + 171
6 AppKit -[NSUndoTyping
initWithAffectedRange:layoutManager:undoManager:replacementRange:] + 181
7 AppKit -[NSTextViewSharedData
coalesceInTextView:affectedRange:replacementRange:] + 440
8 AppKit -[NSTextView(NSSharing)
shouldChangeTextInRanges:replacementStrings:] + 1779
9 AppKit -[NSTextView(NSSharing)
shouldChangeTextInRange:replacementString:] + 123
10 AppKit -[NSTextView insertText:replacementRange:] + 498
11 AppKit -[NSTextInputContext insertText:replacementRange:] + 430
12 AppKit -[NSTextInputContext handleTSMEvent:] + 2654
13 AppKit _NSTSMEventHandler + 214
14 HIToolbox
_Z22_InvokeEventHandlerUPPP25OpaqueEventHandlerCallRefP14OpaqueEventRefPvPFlS0_S2_S3_E
+ 36
15 HIToolbox
_ZL23DispatchEventToHandlersP14EventTargetRecP14OpaqueEventRefP14HandlerCallRec
+ 1602
16 HIToolbox
_ZL30SendEventToEventTargetInternalP14OpaqueEventRefP20OpaqueEventTargetRefP14HandlerCallRec
+ 482
17 HIToolbox SendEventToEventTarget + 76
18 HIToolbox SendTSMEvent + 74
19 HIToolbox SendUnicodeTextAEToUnicodeDoc + 753
20 HIToolbox TSMKeyEvent + 1007
21 HIToolbox TSMProcessRawKeyEvent + 2795
22 AppKit -[NSTextInputContext handleEvent:] + 1257
23 AppKit -[NSView interpretKeyEvents:] + 220
24 AppKit -[NSTextView keyDown:] + 676
25 AppKit -[NSWindow sendEvent:] + 10891
26 AppKit -[NSApplication sendEvent:] + 4788
27 AppKit -[NSApplication run] + 1007
28 AppKit NSApplicationMain + 1054
29 TestApp main + 245
30 TestApp start + 53
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