Re: How to support dictionary service in a custom text view?

FROM : Charles Srstka
DATE : Thu Jul 03 21:26:29 2008

On Jul 3, 2008, at 12:03 PM, Charles Srstka wrote:

> Okay, so I've got a custom text view that's a subclass of NSView 
> (not NSTextView). I've followed the instructions on this page:
>
> http://developer.apple.com/documentation/Cocoa/Conceptual/InputManager/Tasks/TextViewTask.html#/
> /apple_ref/doc/uid/20001040
>
> I override acceptsFirstResponder to return YES, I override keyDown: 
> to call interpretKeyEvents:, and I've implemented the NSTextInput 
> protocol. I override all the mouse events and send those to the 
> current input manager if it wants them (it never does). I even told 
> the NSWindow to accept mouseMoved: events so I could forward them if 
> the input manager wanted them (it doesn't). I've also implemented 
> Services support, accepting NSStringPboardType data and providing it 
> to services.
>
> Anyway, this all works great for the most part. Text editing works 
> fine, services work fine, everyone's happy, except for one thing - I 
> want that dictionary widget that NSTextView has when you type 
> command-control-D with the mouse hovering over a word. Since this is 
> a system service and seems to get loaded into every Cocoa app, there 
> must be a simple way to get my view to support it, but I'm drawing a 
> blank as to what it is. I'm sure it's something simple, I'm just not 
> sure what's the remaining piece of the puzzle that I need to 
> implement. Anyone know what I'm forgetting?


Never mind! I found the answer to my own question - I needed to 
implement the NSAccessibility protocol. I've done that, and now it 
works.

Charles