Hi Steve!
Am 10.07.2009 um 17:37 schrieb Steve Christensen:
The documentation for the NSSavePanel class says that the -
panel:userEnteredFilename:confirmed: message is "sent when the user
confirms a filename choice by hitting OK or Return in the
NSSavePanel." That is not an issue for a NSOpenPanel because the
user is only choosing among existing files.
Well not quite:
The open panel allows me to create new directories since I did
[panel setCanCreateDirectories:YES];
in my implementation of "pathControl:willDisplayOpenPanel:"
(see code in my first posting).
More curiously:
If I trick the panel in selecting an "invalid" path
through creation of a new directory, I cannot open
that path - which at least is half of what I wanted
to accomplish in the first place...
I guess I'm doing something terribly and obviously
stupid here, but I just don't see it...
Why aren't you just implementing a -panel:shouldShowFilename: method
in your delegate to decide which files should and should not be
selectable in your NSOpenPanel?
Oh I did. It should have been in the code-excerpt I attached
but I obviously forgot to post it. (Sorry!)
The implementation is trivial...
- (BOOL)panel:(id)sender shouldShowFilename:(NSString *)filename
{
return [self isValidPath:filename shouldPresentError:NO];
}
However:
It's just not sufficient because the user actually _should_
be able to create new directories as needed.
And upon creation, they already are selected, so the user can
create a folder with an invalid path, click the "open"-button
and see nothing happen, when I intended to kindly say "Well,
that won't work because...".
The delegate methods you listed in your code snippet are all about
validating a new filename when you're going to be saving a file.
What you say makes perfect sense!
That means I have to go the other route and create and set up
a custom field-editor, right?
Or is there another way I haven't seen yet?
Thanks in advance
Daniel
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