On Jan 2, 2012, at 6:02 AM, Dany Golubitsky wrote:

> I need to implement the following thing:
> There is a control displaying numeric value. When you Double-Click on a 
> control small white window appears where you can enter the value, and when 
> you press enter the value will be updated.
> You can see this screenshot (Ignore the fact it is from Windows 7):
> 
> http://i31.fastpic.ru/big/2012/0102/5e/3d39b295e3dc2642ff1d0f240da0c95e.png

What you are trying to implement sounds very similar to the standard field 
editor used in Cocoa 
(http://developer.apple.com/library/mac/#documentation/Cocoa/Conceptual/TextEditing/Tasks/FieldEditor.html).

If you aren't familiar with it, I'd advise taking some time to investigate it 
and see if you can adapt it to your needs. Even if not, the description of how 
it works (integration with responder chain, delegate methods) should prove 
useful. I would recommend it over the approach of trying to force application 
or window modal operation.

> Here is the code. I do it not within the main view but from the side 
> function. The superView is the main view.
> 
> NSRect textRect     = NSMakeRect(in_location.m_x, in_location.m_y, 
> in_size.m_x, in_size.m_y);
> NSTextField* textField = [[NSTextField alloc] initWithFrame:textRect];
> 
> // Configure the text field
> [textField setEditable:YES];
> [textField setSelectable:YES];
> [textField setWantsLayer:YES];
> [textField setImportsGraphics:NO];
> [textField setBordered:NO];
> [textField setBezeled:NO];
> [textField setBackgroundColor:[NSColor whiteColor]];
> [textField setDrawsBackground:YES];
> [textField setTextColor:[NSColor blackColor]];
> [textField setAllowsEditingTextAttributes:NO];
> [textField setAutoresizingMask:(NSUInteger)(NSViewWidthSizable + 
> NSViewHeightSizable)];
> 
> // Embed the text field in our plug-in view.
> [superView addSubview:textField];
> [superView setAutoresizesSubviews:YES];
> 
> // Make the text field "in focus", and start an editing session on it
> [textField becomeFirstResponder];
> 
> Now I tried 2 approaches:
> 
> 1)
> 
> *out_dismissedKey = [NSApp runModalForWindow:[textField window]];
> [textField removeFromSuperview];
> [textField release];
> 
> This one works. The text window gets all the events and I can get what I 
> want. However, the windows order get screwed, meaning if there are couple of 
> windows open in the same application the superView gets beyond other windows 
> and I can not get it on front again.

Given the code, it looks like you're trying to force the window with the text 
field into an application modal "mode". Don't do this.

> So I tried the second approach - sheets:
> 
> 2)
> 
> [textField beginSheetModalForWindow:[superView window] 
> modalDelegate:superView didEndSelector:0 contextInfo:0];
> [textField removeFromSuperview];
> [textField release];
> 
> Now the problem here is that I am getting stuck in this function. The window 
> is opened but neither Enter nor Escape do not close it. So the caller 
> function can not continue, meaning I can not reach
> [textField removeFromSuperview].

So textField is an NSSavePanel or NSAlert? Those seem to be the only objects 
(other than more obscure objects like ABIdentityPicker) with 
beginSheetModalForWindow:modalDelegate:didEndSelector:contextInfo: methods.

I'll assume you meant  - [NSApplication 
beginSheet:modalForWindow:modalDelegate:didEndSelector:contextInfo:]. It 
requires an endSheet call (delegate method? notification?) to exit. In any 
case, I would not recommend this approach either.

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