ITKeyBroadcaster.m

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