Handling key equivalents in a controller class?
Handling key equivalents in a controller class?
- Subject: Handling key equivalents in a controller class?
- From: Jens Alfke <email@hidden>
- Date: Wed, 16 Jul 2008 10:05:52 -0700
I've run into this problem a few times now: I have an
NSWindowController subclass that manages a window. I want to handle
certain hot-keys in this window, for example Esc to exit full-screen
mode, or maybe use letter keys to switch tools as in Photoshop. Where
do I put the handler for this?
When this happened in the past I added a -performKeyEquivalent: method
to a custom view in the window. However, this only makes sense
architecturally if the action is related to that view; and if the view
is a standard class (like NSTableView) then I have to subclass it just
to add that one method. (AppKit doesn't send -performKeyEquivalent up
the responder chain to the window's delegate, only to the views in the
window.) This seems contrary to Cocoa's usual philosophy of delegation.
Am I missing something?
—Jens
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