Re: Inspector-aware undo in Doc-based app
Re: Inspector-aware undo in Doc-based app
- Subject: Re: Inspector-aware undo in Doc-based app
- From: Raphael Sebbe <email@hidden>
- Date: Fri, 4 Apr 2003 08:24:53 +0200
That works... Note that I use this as appropriate for my app:
- (NSUndoManager *)windowWillReturnUndoManager:(NSWindow *)aWindow
{
return [[[NSDocumentController sharedDocumentController]
currentDocument] undoManager];
}
Thanks !
Raphael
On Thursday, April 3, 2003, at 05:37 PM, Greg Titus wrote:
>
Implement the NSWindow delegate method -windowWillReturnUndoManager:
>
on the delegate of your inspector window. The implementation should
>
look at the current document window's responder chain for the current
>
undo manager and return that. Something like this:
>
>
- (NSUndoManager *)windowWillReturnUndoManager:(NSWindow *)aWindow;
>
{
>
NSWindow *mainWindow;
>
NSResponder *nextResponder;
>
NSUndoManager *undoManager = nil;
>
>
mainWindow = [NSApp mainWindow];
>
nextResponder = [mainWindow firstResponder];
>
if (nextResponder == nil)
>
nextResponder = mainWindow;
>
>
do {
>
if ([nextResponder respondsToSelector:@selector(undoManager)])
>
undoManager = [nextResponder undoManager];
>
else if ([nextResponder
>
respondsToSelector:@selector(delegate)] && [[(id)nextResponder
>
delegate] respondsToSelector:@selector(undoManager)])
>
undoManager = [[(id)nextResponder delegate] undoManager];
>
nextResponder = [nextResponder nextResponder];
>
} while (nextResponder && !undoManager);
>
>
return undoManager;
>
}
>
>
Hope this helps,
>
- Greg
>
>
On Thursday, April 3, 2003, at 05:20 AM, Raphael Sebbe wrote:
>
>
> I am not sure to understand. All undoable operations are implemented
>
> on the model, as they should. My problem is about showing the undo
>
> actions in the Edit menu, not record it.
>
>
>
> Raphael
>
>
>
> On Thursday, April 3, 2003, at 02:45 PM, j o a r wrote:
>
>
>
>> Implement all related undo methods in the inspector, and every time
>
>> they are called, forward the request to the currently inspected >
>
>> window.
>
>>
>
>> j o a r
>
>>
>
>> On Thursday, Apr 3, 2003, at 14:31 Europe/Stockholm, Raphael Sebbe
>
>> wrote:
>
>>
>
>>> I have a doc-based app with a unique inspector (common to all
>
>>> documents). Whenever I click on the inspector, the undo menu item
>
>>> in Edit becomes gray, what I want is that it still applies to the
>
>>> current document.
>
>>>
>
>>> Reading the doc, I thought of adding the current document to the
>
>>> responder chain (as inspector panel's delegate) but it doesn't
>
>>> work. Of course, this is a hack, yet it doesn't work.
>
>>>
>
>>> So my question, is there a neat way to do that ?
>
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