Hi Nathan,
By overriding -keyDown: and not calling [super keyDown:keyEvent], you
have stopped your view from actually processing the keys any further.
That's why you aren't getting to either of the delete methods.
Hope this helps,
- Greg
On Jul 7, 2008, at 4:59 PM, Nathan Vander Wilt wrote:
The Cocoa Text Bindings system already translates keys and key
combinations into invocations of NSResponder methods. <http://developer.apple.com/documentation/Cocoa/Conceptual/EventOverview/TextDefaultsBindings/chapter_9_section_1.html
>
So, what you need to do is determine which methods those keys are
already mapping to, override those methods in the appropriate place
in your responder chain (e.g. on your custom view or application
delegate), and have them all invoke some common method to do what
you want.
Thanks, I forgot to mention that I tried overriding some of those
action methods. However, I couldn't get them to fire.
If I implement:
- (BOOL)acceptsFirstResponder {
return YES;
}
- (void)keyDown:(NSEvent*)keyEvent {
(void)keyEvent;
printf("key event received\n");
}
- (void)deleteBackward:(id)sender {
(void)sender;
printf("delete backward received\n");
}
- (void)deleteForward:(id)sender {
(void)sender;
printf("delete forward received\n");
}
...and then press delete or forward-delete, I only ever get "key
event received". According to the chart at http://developer.apple.com/documentation/Cocoa/Conceptual/EventOverview/EventArchitecture/chapter_2_section_3.html#/
/apple_ref/doc/uid/10000060i-CH3-SW10, it looks like the event
should flow all the way down to the "Key Action?" conditional, and
since it's a bound key binding I thought I should get the "Yes: Send
action message to first responder" path.
However, on further investigation, I see that this is just a
"potential" path diagram, and seems to be an example for if the
first responder view is a text one, which mine will rarely be. Under
what circumstances will the Cocoa Text Bindings system convert
keypresses to the "text" actions, so that a non-NSResponder (ie, a
window/app delegate) can perform the action?
thanks,
-natevw
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