ITKeyBroadcaster.m

   1 //
   2 //  ITKeyBroadcaster.m
   3 //
   4 //  Created by Quentin Carnicelli on Sun Aug 03 2003.
   5 //  Copyright (c) 2003 iThink Software. All rights reserved.
   6 //
   7
   8 #import "ITKeyBroadcaster.h"
   9 #import "ITKeyCombo.h"
  10 #import <Carbon/Carbon.h>
  11
  12 NSString* ITKeyBroadcasterKeyEvent = @"ITKeyBroadcasterKeyEvent";
  13
  14 @implementation ITKeyBroadcaster
  15
  16 - (void)_bcastKeyCode: (short)keyCode modifiers: (long)modifiers
  17 {
  18         ITKeyCombo* keyCombo = [ITKeyCombo keyComboWithKeyCode: keyCode modifiers: modifiers];
  19         NSDictionary* userInfo = [NSDictionary dictionaryWithObject: keyCombo forKey:@"keyCombo"];
  20
  21         [[NSNotificationCenter defaultCenter]
  22                 postNotificationName: ITKeyBroadcasterKeyEvent
  23                 object: self
  24                 userInfo: userInfo];
  25 }
  26
  27 - (void)_bcastEvent: (NSEvent*)event
  28 {
  29         short keyCode;
  30         long modifiers;
  31
  32         keyCode = [event keyCode];
  33         modifiers = [event modifierFlags];
  34         modifiers = [[self class] cocoaModifiersAsCarbonModifiers: modifiers];
  35
  36         [self _bcastKeyCode: keyCode modifiers: modifiers];
  37 }
  38
  39 - (void)keyDown: (NSEvent*)event
  40 {
  41         [self _bcastEvent: event];
  42 }
  43
  44 - (BOOL)performKeyEquivalent: (NSEvent*)event
  45 {
  46         [self _bcastEvent: event];
  47         return YES;
  48 }
  49
  50 + (long)cocoaModifiersAsCarbonModifiers: (long)cocoaModifiers
  51 {
  52         static long cocoaToCarbon[6][2] =
  53         {
  54                 { NSCommandKeyMask, cmdKey},
  55                 { NSAlternateKeyMask, optionKey},
  56                 { NSControlKeyMask, controlKey},
  57                 { NSShiftKeyMask, shiftKey},
  58                 { NSFunctionKeyMask, rightControlKey},
  59                 //{ NSAlphaShiftKeyMask, alphaLock }, //Ignore this?
  60         };
  61
  62         long carbonModifiers = 0;
  63         int i;
  64
  65         for( i = 0 ; i < 6; i++ )
  66                 if( cocoaModifiers & cocoaToCarbon[i][0] )
  67                         carbonModifiers += cocoaToCarbon[i][1];
  68
  69         return carbonModifiers;
  70 }
  71
  72
  73 @end