Re: [MACTCL] Tk apps as Service consumers

[Kevin W. <kw...@co...>]

On 4/18/10 12:59 AM, Kevin Walzer wrote:
> Hi all,
>
> I'm taking another stab at adding some Services functionality to my Tk
> apps, i.e. access the Services menu and sending some selected data from
> my Tk apps to another application. I've actually got a rather hackish
> implementation of my apps as service providers (using Service bundles
> that call the apps via AppleScript), but I can't get the other
> half--accessing the Services menu from my apps--to work.
>
> I've been through all the Cocoa docs, and I think I'm doing the
> appropriate setup: subclassing NSView, adding a custom subview to Tk
> widgets (as I am doing, successfully, with TkDND), implementing
> Tk_GetSelection to get the current text selection, and implementing the
> NSServices methods below to declare text (NSStringPBoardType) as the
> appropridate data:
>
> + (void) initialize;
>
> - (BOOL)writeSelectionToPasteboard:(NSPasteboard *)pb types:(NSArray
> *)types;
> - (id)validRequestorForSendType:(NSString *)sendType
> returnType:(NSString *)returnType;
>
> Unfortunately, I'm not able to access the Services menu at
> all--everything's grayed out.
>
> I'm wondering if it's simply not possible for non-Cocoa widgets to
> access this functionality. My code seems correctly organized, at least
> based on the Cocoa docs, my experience with TkDND, and everything else:
> I can find no obvious errors. The Tk text widget is not a subclass of
> NSTextView, so it doesn't automatically hook into the Services menu, but
> adding a subview to it doesn't seem to work.
>
> I'll post my code if requested, but my last posting about this got no
> comments from anyone...
>
> --Kevin
>
Setting the first responder on my view has allowed me access the Service 
menu:

//make sure the view accepts events
- (BOOL)acceptsFirstResponder {
	return YES;
}
- (BOOL)becomeFirstResponder {
	return YES;
}


Full, open-source release of this package to come in the near future.

--Kevin

-- 
Kevin Walzer
Code by Kevin
http://www.codebykevin.com