Re: insertText in NSOutlineView? (for Autolocator)
Re: insertText in NSOutlineView? (for Autolocator)
- Subject: Re: insertText in NSOutlineView? (for Autolocator)
- From: Brendan Younger <email@hidden>
- Date: Fri, 17 May 2002 09:43:48 -0400
On Friday, May 17, 2002, at 05:08 AM, Manfred Lippert wrote:
Hi,
I asked this question a few weeks ago, but got no answer.
I am still trying to implement an "autolocator" for an NSOutlineView,
but I
had no success.
I want the user to be able to type some characters, and if there are no
more
characters entered for a specific time, the NSOutlineView should "jump"
to
the specific entry (whose entry begins with the entered characters).
Pretty the same way as the Finder does it (so there must be a way to do
it).
How can I do that?
I tried to override "insertText" in my NSOutlineView subclass, but this
is
never called.
keyDown is called, but insertText is never called.
Now I tried to allocate an (invisible) NSTextField object when the
NSOutlineView awakes from Nib and I hooked this NSTextField in the
Responder
chain right after the NSOutlineView.
Result: NSTextField's keyDown is correctly called for all keys that are
not
handled by NSOutlineView, but also insertText is never called. Entered
characters end in "beeps" just as they will without the NSTextField.
Please help!
How can I implement an autolocator in an NSOutlineView??
Sure, I could filter "printable" keys (a-z) directly in the keyDown
method,
but this is a "hack" and then the autolocator will not work for special
characters that require more than one key stroke (French characters with
accent etc.). So it would be great if this works the "correct" way with
help
of the text input manager.
I have run into the same problem. The best I've been able to do is
subclass NSOutlineView, over-ride -keyDown, and make sure I'm not
touching the "reserved" values. Check NSEvent.h for a list of
Apple-reserved values. This works very well simply because
NSOutlineView doesn't do anything with alphanumerics (no matter what
language you're using), and it really doesn't matter what comes in since
you're just trying to match it with the characters of the items of the
NSOutlineView. You might also want to over-ride the arrow keys (these
fall within the "reserved" section), but it's not hard to just pick
these events out and leave the rest untouched.
However, this whole behavior seems very commonly needed, I wonder if you
could file a bug report/feature request with Apple.
Brendan Younger
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