summaryrefslogtreecommitdiff
path: root/apple_remote/source/GlobalKeyboardDevice.m
blob: a44f30f1ba55bf33edc7619120a0b767e0c9ad7f (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
/* -*- Mode: ObjC; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*****************************************************************************
 * GlobalKeyboardDevice.m
 * RemoteControlWrapper
 *
 * Created by Martin Kahr on 11.03.06 under a MIT-style license.
 * Copyright (c) 2006 martinkahr.com. All rights reserved.
 *
 * Code modified and adapted to OpenOffice.org
 * by Eric Bachard on 11.08.2008 under the same license
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included
 * in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 *
 *****************************************************************************/


#import "GlobalKeyboardDevice.h"

#define F1 122
#define F2 120
#define F3 99
#define F4 118
#define F5 96
#define F6 97
#define F7 98

/*
 the following default keys are read and shall be used to change the keyboard mapping

 mac.remotecontrols.GlobalKeyboardDevice.plus_modifiers
 mac.remotecontrols.GlobalKeyboardDevice.plus_keycode
 mac.remotecontrols.GlobalKeyboardDevice.minus_modifiers
 mac.remotecontrols.GlobalKeyboardDevice.minus_keycode
 mac.remotecontrols.GlobalKeyboardDevice.play_modifiers
 mac.remotecontrols.GlobalKeyboardDevice.play_keycode
 mac.remotecontrols.GlobalKeyboardDevice.left_modifiers
 mac.remotecontrols.GlobalKeyboardDevice.left_keycode
 mac.remotecontrols.GlobalKeyboardDevice.right_modifiers
 mac.remotecontrols.GlobalKeyboardDevice.right_keycode
 mac.remotecontrols.GlobalKeyboardDevice.menu_modifiers
 mac.remotecontrols.GlobalKeyboardDevice.menu_keycode
 mac.remotecontrols.GlobalKeyboardDevice.playhold_modifiers
 mac.remotecontrols.GlobalKeyboardDevice.playhold_keycode
 */

static OSStatus hotKeyEventHandler(EventHandlerCallRef, EventRef, void*);

@implementation GlobalKeyboardDevice

- (id) initWithDelegate: (id) _remoteControlDelegate {
    if ( (self = [super initWithDelegate: _remoteControlDelegate]) ) {
        hotKeyRemoteEventMapping = [[NSMutableDictionary alloc] init];

        unsigned int modifiers = cmdKey + shiftKey /*+ optionKey*/ + controlKey;

        [self mapRemoteButton:kRemoteButtonPlus         defaultKeycode:F1 defaultModifiers:modifiers];
        [self mapRemoteButton:kRemoteButtonMinus        defaultKeycode:F2 defaultModifiers:modifiers];
        [self mapRemoteButton:kRemoteButtonPlay         defaultKeycode:F3 defaultModifiers:modifiers];
        [self mapRemoteButton:kRemoteButtonLeft         defaultKeycode:F4 defaultModifiers:modifiers];
        [self mapRemoteButton:kRemoteButtonRight        defaultKeycode:F5 defaultModifiers:modifiers];
        [self mapRemoteButton:kRemoteButtonMenu         defaultKeycode:F6 defaultModifiers:modifiers];
        [self mapRemoteButton:kRemoteButtonPlay_Hold    defaultKeycode:F7 defaultModifiers:modifiers];
    }
    return self;
}

- (void) dealloc {
    [hotKeyRemoteEventMapping release];
    [super dealloc];
}

- (void) mapRemoteButton: (RemoteControlEventIdentifier) remoteButtonIdentifier defaultKeycode: (unsigned int) defaultKeycode defaultModifiers: (unsigned int) defaultModifiers {
    NSString* defaultsKey = NULL;

    switch(remoteButtonIdentifier) {
        case kRemoteButtonPlus:
            defaultsKey = @"plus";
            break;
        case kRemoteButtonMinus:
            defaultsKey = @"minus";
            break;
        case kRemoteButtonMenu:
            defaultsKey = @"menu";
            break;
        case kRemoteButtonPlay:
            defaultsKey = @"play";
            break;
        case kRemoteButtonRight:
            defaultsKey = @"right";
            break;
        case kRemoteButtonLeft:
            defaultsKey = @"left";
            break;
        case kRemoteButtonPlay_Hold:
            defaultsKey = @"playhold";
            break;
        default:
#if OSL_DEBUG_LEVEL >= 2
            NSLog( @"Apple Remote: Unknown global keyboard defaults key for button identifier %d", remoteButtonIdentifier);
#endif
            break;
    }

    NSNumber* modifiersCfg = [[NSUserDefaults standardUserDefaults] objectForKey: [NSString stringWithFormat: @"mac.remotecontrols.GlobalKeyboardDevice.%@_modifiers", defaultsKey]];
    NSNumber* keycodeCfg   = [[NSUserDefaults standardUserDefaults] objectForKey: [NSString stringWithFormat: @"mac.remotecontrols.GlobalKeyboardDevice.%@_keycode", defaultsKey]];

    unsigned int modifiers = defaultModifiers;
    if (modifiersCfg) modifiers = [modifiersCfg unsignedIntValue];

    unsigned int keycode = defaultKeycode;
    if (keycodeCfg) keycode = [keycodeCfg unsignedIntValue];

    [self registerHotKeyCode: keycode  modifiers: modifiers remoteEventIdentifier: remoteButtonIdentifier];
}

- (void) setListeningToRemote: (BOOL) value {
    if (value == [self isListeningToRemote]) return;
    if (value) {
        [self startListening: self];
    } else {
        [self stopListening: self];
    }
}
- (BOOL) isListeningToRemote {
    return (eventHandlerRef!=NULL);
}

- (void) startListening: (id) sender {

    if (eventHandlerRef) return;

    EventTypeSpec const eventSpec[2] = {
        { kEventClassKeyboard, kEventHotKeyPressed },
        { kEventClassKeyboard, kEventHotKeyReleased }
    };

    InstallEventHandler( GetEventDispatcherTarget(),
                         (EventHandlerProcPtr)hotKeyEventHandler,
                         2, eventSpec, self, &eventHandlerRef);
    (void)sender;
}

- (void) stopListening: (id) sender {
    RemoveEventHandler(eventHandlerRef);
    eventHandlerRef = NULL;
    (void)sender;
}

- (BOOL) sendsEventForButtonIdentifier: (RemoteControlEventIdentifier) identifier {
    NSEnumerator* values = [hotKeyRemoteEventMapping objectEnumerator];
    NSNumber* remoteIdentifier;
    while( (remoteIdentifier = [values nextObject]) ) {
        if ([remoteIdentifier unsignedIntValue] == identifier) return YES;
    }
    return NO;
}

+ (const char*) remoteControlDeviceName {
    return "Keyboard";
}

- (BOOL)registerHotKeyCode: (unsigned int) keycode modifiers: (unsigned int) modifiers remoteEventIdentifier: (RemoteControlEventIdentifier) identifier {
    OSStatus err;
    EventHotKeyID hotKeyID;
    EventHotKeyRef carbonHotKey;

    hotKeyID.signature = 'PTHk';
    hotKeyID.id = (long)keycode;

    err = RegisterEventHotKey(keycode, modifiers, hotKeyID, GetEventDispatcherTarget(), 0, &carbonHotKey );

    if( err )
        return NO;

    [hotKeyRemoteEventMapping setObject: [NSNumber numberWithInt:identifier] forKey: [NSNumber numberWithUnsignedInt: hotKeyID.id]];

    return YES;
}
/*
- (void)unregisterHotKey: (PTHotKey*)hotKey
{
    OSStatus err;
    EventHotKeyRef carbonHotKey;
    NSValue* key;

    if( [[self allHotKeys] containsObject: hotKey] == NO )
        return;

    carbonHotKey = [self _carbonHotKeyForHotKey: hotKey];
    NSAssert( carbonHotKey != nil, @"" );

    err = UnregisterEventHotKey( carbonHotKey );
    //Watch as we ignore 'err':

    key = [NSValue valueWithPointer: carbonHotKey];
    [mHotKeys removeObjectForKey: key];

    [self _updateEventHandler];

    //See that? Completely ignored
}
*/

- (RemoteControlEventIdentifier) remoteControlEventIdentifierForID: (unsigned int) id {
    NSNumber* remoteEventIdentifier = [hotKeyRemoteEventMapping objectForKey:[NSNumber numberWithUnsignedInt: id]];
    return [remoteEventIdentifier unsignedIntValue];
}

- (void) sendRemoteButtonEvent: (RemoteControlEventIdentifier) event pressedDown: (BOOL) pressedDown {
    [delegate sendRemoteButtonEvent: event pressedDown: pressedDown remoteControl:self];
}

static RemoteControlEventIdentifier lastEvent;


static OSStatus hotKeyEventHandler(EventHandlerCallRef inHandlerRef, EventRef inEvent, void* userData )
{
    (void)inHandlerRef;
    GlobalKeyboardDevice* keyboardDevice = (GlobalKeyboardDevice*) userData;
    EventHotKeyID hkCom;
    GetEventParameter(inEvent,kEventParamDirectObject,typeEventHotKeyID,NULL,sizeof(hkCom),NULL,&hkCom);

    RemoteControlEventIdentifier identifier = [keyboardDevice remoteControlEventIdentifierForID:hkCom.id];
    if (identifier == 0) return noErr;

    BOOL pressedDown = YES;
    if (identifier != lastEvent) {
        lastEvent = identifier;
    } else {
        lastEvent = 0;
        pressedDown = NO;
    }
    [keyboardDevice sendRemoteButtonEvent: identifier pressedDown: pressedDown];

    return noErr;
}

@end

/* vim:set shiftwidth=4 softtabstop=4 expandtab: */