//
//  ITKeyBroadcaster.m
//
//  Created by Quentin Carnicelli on Sun Aug 03 2003.
//  Copyright (c) 2003 iThink Software. All rights reserved.
//

#import "ITKeyBroadcaster.h"
#import "ITKeyCombo.h"
#import <Carbon/Carbon.h>

NSString* ITKeyBroadcasterKeyEvent = @"ITKeyBroadcasterKeyEvent";

@implementation ITKeyBroadcaster

- (void)_bcastKeyCode: (short)keyCode modifiers: (long)modifiers
{
	ITKeyCombo* keyCombo = [ITKeyCombo keyComboWithKeyCode: keyCode modifiers: modifiers];
	NSDictionary* userInfo = [NSDictionary dictionaryWithObject: keyCombo forKey:@"keyCombo"];

	[[NSNotificationCenter defaultCenter]
		postNotificationName: ITKeyBroadcasterKeyEvent
		object: self
		userInfo: userInfo];
}

- (void)_bcastEvent: (NSEvent*)event
{
	short keyCode;
	long modifiers;
	
	keyCode = [event keyCode];
	modifiers = [event modifierFlags];
	modifiers = [[self class] cocoaModifiersAsCarbonModifiers: modifiers];

	[self _bcastKeyCode: keyCode modifiers: modifiers];
}

- (void)keyDown: (NSEvent*)event
{
	[self _bcastEvent: event];
}

- (BOOL)performKeyEquivalent: (NSEvent*)event
{
	[self _bcastEvent: event];
	return YES;
}

+ (long)cocoaModifiersAsCarbonModifiers: (long)cocoaModifiers
{
	static long cocoaToCarbon[6][2] =
	{
		{ NSCommandKeyMask, cmdKey},
		{ NSAlternateKeyMask, optionKey},
		{ NSControlKeyMask, controlKey},
		{ NSShiftKeyMask, shiftKey},
                { NSFunctionKeyMask, rightControlKey},
		//{ NSAlphaShiftKeyMask, alphaLock }, //Ignore this?
	};

	long carbonModifiers = 0;
	int i;
	
	for( i = 0 ; i < 6; i++ )
		if( cocoaModifiers & cocoaToCarbon[i][0] )
			carbonModifiers += cocoaToCarbon[i][1];
	
	return carbonModifiers;
}


@end