Files
MacPass/MacPass/MPKeyMapper.m

97 lines
3.0 KiB
Objective-C

//
// MPKeyMapper.m
// MacPass
//
// Created by Michael Starke on 07.02.14.
// Copyright (c) 2014 HicknHack Software GmbH. All rights reserved.
//
// Uses Code from:
// SRKeyCodeTransformer.h
// ShortcutRecorder
//
// Copyright 2006-2007 Contributors. All rights reserved.
//
// License: BSD
//
// Contributors:
// David Dauer
// Jesper
// Jamie Kirkpatrick
#import "MPKeyMapper.h"
#import <Carbon/Carbon.h>
uint16_t const kMPUnknownKeyCode = UINT16_MAX;
@implementation MPKeyMapper
+ (NSString *)stringForKey:(CGKeyCode)keyCode {
TISInputSourceRef currentKeyboard = TISCopyCurrentKeyboardInputSource();
CFDataRef layoutData = TISGetInputSourceProperty(currentKeyboard,kTISPropertyUnicodeKeyLayoutData);
if(!layoutData) {
currentKeyboard = TISCopyCurrentASCIICapableKeyboardLayoutInputSource();
layoutData = (CFDataRef)TISGetInputSourceProperty(currentKeyboard, kTISPropertyUnicodeKeyLayoutData);
}
CFRelease(currentKeyboard);
const UCKeyboardLayout *keyboardLayout = (const UCKeyboardLayout *)CFDataGetBytePtr(layoutData);
UInt32 keysDown = 0;
UniChar chars[4];
UniCharCount realLength;
UCKeyTranslate(keyboardLayout,
keyCode,
kUCKeyActionDisplay,
0,
LMGetKbdType(),
kUCKeyTranslateNoDeadKeysBit,
&keysDown,
sizeof(chars) / sizeof(chars[0]),
&realLength,
chars);
return CFBridgingRelease(CFStringCreateWithCharacters(kCFAllocatorDefault, chars, 1));
}
+ (CGKeyCode)keyCodeForCharacter:(NSString *)character {
static NSMutableDictionary *keyboardCodeDictionary;
TISInputSourceRef currentKeyboard = TISCopyCurrentKeyboardInputSource();
NSString *localizedName = (__bridge NSString *)TISGetInputSourceProperty(currentKeyboard, kTISPropertyLocalizedName);
CFRelease(currentKeyboard);
/* Initalize the keyboardCodeDictonary */
if(keyboardCodeDictionary == nil) {
/* Input source should not change that much while we are running */
keyboardCodeDictionary = [[NSMutableDictionary alloc] initWithCapacity:2];
}
/* search for current character mapping */
NSDictionary<NSString *, NSNumber *> *charToCodeDict = keyboardCodeDictionary[localizedName];
if(nil == charToCodeDict) {
/* Add mapping */
NSMutableDictionary *tempCharToCodeDict = [[NSMutableDictionary alloc] initWithCapacity:128];
/* Generate table of keycodes and characters. */
/* Loop through every keycode (0 - 127) to find its current mapping. */
for(CGKeyCode keyCode = 0; keyCode < 128; ++keyCode) {
NSString *string = [self stringForKey:keyCode];
if(string != nil) {
tempCharToCodeDict[string] = @(keyCode);
}
}
keyboardCodeDictionary[localizedName] = [[NSDictionary alloc] initWithDictionary:tempCharToCodeDict];
}
NSString *singleCharacter = [character substringToIndex:1].lowercaseString;
if(charToCodeDict[singleCharacter]) {
return charToCodeDict[singleCharacter].integerValue;
}
return kMPUnknownKeyCode;
}
@end