I manually start an edit session with a NSTextField after the user
clicks in the field by doing the following:
[textField selectText:nil];
NSTextView *currentEditor = (NSTextView*)[textField currentEditor];
NSPoint windowLocation = [theEvent locationInWindow];
NSPoint screenLocation = [[self window]
convertBaseToScreen:windowLocation];
NSUInteger characterIndex = [currentEditor
characterIndexForPoint:screenLocation];
[currentEditor setSelectedRange:NSMakeRange( characterIndex + 1,
0 )];
I can then alter the text in the field and press return. Once I press
return, the delegate of the field does get a controlTextDidEndEditing
notification. However, the field still has it's focus ring and if I
start typing again, what I type goes into the field.
The first thing I tried was:
- (void) controlTextDidEndEditing:(NSNotification *)aNotification
{
NSLog( @"ResourceItemController: controlTextDidEndEditing:
object: %@", [aNotification object] );
BOOL resigned = [[aNotification object] resignFirstResponder];
NSLog( @"ResourceItemController: controlTextDidEndEditing:
resigned: %d", (int)resigned );
}
but, as one likely expects, this did nothing since the NSTextField
wasn't the first responder - it's field editor was.
In the documentation for NSControlTextDidEndEditingNotification, the
field editor can be obtained via the userInfo dictionary of the
notification. So, the next thing I tried was:
- (void) controlTextDidEndEditing:(NSNotification *)aNotification
{
NSLog( @"ResourceItemController: controlTextDidEndEditing:
object: %@", [aNotification object] );
id fieldEditor = [[aNotification userInfo]
objectForKey:@"NSFieldEditor"];
resigned = [fieldEditor resignFirstResponder];
NSLog( @"ResourceItemController: controlTextDidEndEditing:
resigned: %d", (int)resigned );
}
However, this just results in an exception...
2009-02-23 10:13:55.842 OutlineCollection-VB[24861:813] NSWindow: -
_newFirstResponderAfterResigining is not a valid message outside of a
responder's implementation of -resignFirstResponder.
and the last NSLog call in controlTextDidEndEditing is not executed.
So, how can I properly edit an editing session of a NSTextField?
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