-
-
Notifications
You must be signed in to change notification settings - Fork 163
/
CarbonKeyboardShortcuts.swift
347 lines (295 loc) · 8.32 KB
/
CarbonKeyboardShortcuts.swift
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
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
import Carbon.HIToolbox
private func carbonKeyboardShortcutsEventHandler(eventHandlerCall: EventHandlerCallRef?, event: EventRef?, userData: UnsafeMutableRawPointer?) -> OSStatus {
CarbonKeyboardShortcuts.handleEvent(event)
}
enum CarbonKeyboardShortcuts {
private final class HotKey {
let shortcut: KeyboardShortcuts.Shortcut
let carbonHotKeyId: Int
var carbonHotKey: EventHotKeyRef?
let onKeyDown: (KeyboardShortcuts.Shortcut) -> Void
let onKeyUp: (KeyboardShortcuts.Shortcut) -> Void
init(
shortcut: KeyboardShortcuts.Shortcut,
carbonHotKeyID: Int,
carbonHotKey: EventHotKeyRef,
onKeyDown: @escaping (KeyboardShortcuts.Shortcut) -> Void,
onKeyUp: @escaping (KeyboardShortcuts.Shortcut) -> Void
) {
self.shortcut = shortcut
self.carbonHotKeyId = carbonHotKeyID
self.carbonHotKey = carbonHotKey
self.onKeyDown = onKeyDown
self.onKeyUp = onKeyUp
}
}
private static var hotKeys = [Int: HotKey]()
// `SSKS` is just short for `Sindre Sorhus Keyboard Shortcuts`.
// Using an integer now that `UTGetOSTypeFromString("SSKS" as CFString)` is deprecated.
// swiftlint:disable:next number_separator
private static let hotKeySignature: UInt32 = 1397967699 // OSType => "SSKS"
private static var hotKeyId = 0
private static var eventHandler: EventHandlerRef?
private static let hotKeyEventTypes = [
EventTypeSpec(eventClass: OSType(kEventClassKeyboard), eventKind: UInt32(kEventHotKeyPressed)),
EventTypeSpec(eventClass: OSType(kEventClassKeyboard), eventKind: UInt32(kEventHotKeyReleased))
]
private static let rawKeyEventTypes = [
EventTypeSpec(eventClass: OSType(kEventClassKeyboard), eventKind: UInt32(kEventRawKeyDown)),
EventTypeSpec(eventClass: OSType(kEventClassKeyboard), eventKind: UInt32(kEventRawKeyUp))
]
private static let keyEventMonitor = RunLoopLocalEventMonitor(events: [.keyDown, .keyUp], runLoopMode: .eventTracking) { event in
guard
let eventRef = OpaquePointer(event.eventRef),
handleRawKeyEvent(eventRef) == noErr
else {
return event
}
return nil
}
private static func setUpEventHandlerIfNeeded() {
guard
eventHandler == nil,
let dispatcher = GetEventDispatcherTarget()
else {
return
}
var handler: EventHandlerRef?
let error = InstallEventHandler(
dispatcher,
carbonKeyboardShortcutsEventHandler,
0,
nil,
nil,
&handler
)
guard
error == noErr,
let handler
else {
return
}
eventHandler = handler
updateEventHandler()
}
static func updateEventHandler() {
guard eventHandler != nil else {
return
}
if KeyboardShortcuts.isEnabled {
if KeyboardShortcuts.isMenuOpen {
softUnregisterAll()
RemoveEventTypesFromHandler(eventHandler, hotKeyEventTypes.count, hotKeyEventTypes)
if #available(macOS 14, *) {
keyEventMonitor.start()
} else {
AddEventTypesToHandler(eventHandler, rawKeyEventTypes.count, rawKeyEventTypes)
}
} else {
softRegisterAll()
if #available(macOS 14, *) {
keyEventMonitor.stop()
} else {
RemoveEventTypesFromHandler(eventHandler, rawKeyEventTypes.count, rawKeyEventTypes)
}
AddEventTypesToHandler(eventHandler, hotKeyEventTypes.count, hotKeyEventTypes)
}
} else {
softUnregisterAll()
RemoveEventTypesFromHandler(eventHandler, hotKeyEventTypes.count, hotKeyEventTypes)
if #available(macOS 14, *) {
keyEventMonitor.stop()
} else {
RemoveEventTypesFromHandler(eventHandler, rawKeyEventTypes.count, rawKeyEventTypes)
}
}
}
static func register(
_ shortcut: KeyboardShortcuts.Shortcut,
onKeyDown: @escaping (KeyboardShortcuts.Shortcut) -> Void,
onKeyUp: @escaping (KeyboardShortcuts.Shortcut) -> Void
) {
hotKeyId += 1
var eventHotKey: EventHotKeyRef?
let registerError = RegisterEventHotKey(
UInt32(shortcut.carbonKeyCode),
UInt32(shortcut.carbonModifiers),
EventHotKeyID(signature: hotKeySignature, id: UInt32(hotKeyId)),
GetEventDispatcherTarget(),
0,
&eventHotKey
)
guard
registerError == noErr,
let carbonHotKey = eventHotKey
else {
return
}
hotKeys[hotKeyId] = HotKey(
shortcut: shortcut,
carbonHotKeyID: hotKeyId,
carbonHotKey: carbonHotKey,
onKeyDown: onKeyDown,
onKeyUp: onKeyUp
)
setUpEventHandlerIfNeeded()
}
private static func softRegisterAll() {
for hotKey in hotKeys.values {
guard hotKey.carbonHotKey == nil else {
continue
}
var eventHotKey: EventHotKeyRef?
let error = RegisterEventHotKey(
UInt32(hotKey.shortcut.carbonKeyCode),
UInt32(hotKey.shortcut.carbonModifiers),
EventHotKeyID(signature: hotKeySignature, id: UInt32(hotKey.carbonHotKeyId)),
GetEventDispatcherTarget(),
0,
&eventHotKey
)
guard
error == noErr,
let eventHotKey
else {
hotKeys.removeValue(forKey: hotKey.carbonHotKeyId)
continue
}
hotKey.carbonHotKey = eventHotKey
}
}
private static func unregisterHotKey(_ hotKey: HotKey) {
UnregisterEventHotKey(hotKey.carbonHotKey)
hotKeys.removeValue(forKey: hotKey.carbonHotKeyId)
}
static func unregister(_ shortcut: KeyboardShortcuts.Shortcut) {
for hotKey in hotKeys.values where hotKey.shortcut == shortcut {
unregisterHotKey(hotKey)
}
}
static func unregisterAll() {
for hotKey in hotKeys.values {
unregisterHotKey(hotKey)
}
}
private static func softUnregisterAll() {
for hotKey in hotKeys.values {
UnregisterEventHotKey(hotKey.carbonHotKey)
hotKey.carbonHotKey = nil
}
}
fileprivate static func handleEvent(_ event: EventRef?) -> OSStatus {
guard let event else {
return OSStatus(eventNotHandledErr)
}
switch Int(GetEventKind(event)) {
case kEventHotKeyPressed, kEventHotKeyReleased:
return handleHotKeyEvent(event)
case kEventRawKeyDown, kEventRawKeyUp:
return handleRawKeyEvent(event)
default:
break
}
return OSStatus(eventNotHandledErr)
}
private static func handleHotKeyEvent(_ event: EventRef) -> OSStatus {
var eventHotKeyId = EventHotKeyID()
let error = GetEventParameter(
event,
UInt32(kEventParamDirectObject),
UInt32(typeEventHotKeyID),
nil,
MemoryLayout<EventHotKeyID>.size,
nil,
&eventHotKeyId
)
guard error == noErr else {
return error
}
guard
eventHotKeyId.signature == hotKeySignature,
let hotKey = hotKeys[Int(eventHotKeyId.id)]
else {
return OSStatus(eventNotHandledErr)
}
switch Int(GetEventKind(event)) {
case kEventHotKeyPressed:
hotKey.onKeyDown(hotKey.shortcut)
return noErr
case kEventHotKeyReleased:
hotKey.onKeyUp(hotKey.shortcut)
return noErr
default:
break
}
return OSStatus(eventNotHandledErr)
}
private static func handleRawKeyEvent(_ event: EventRef) -> OSStatus {
var eventKeyCode = UInt32()
let keyCodeError = GetEventParameter(
event,
UInt32(kEventParamKeyCode),
typeUInt32,
nil,
MemoryLayout<UInt32>.size,
nil,
&eventKeyCode
)
guard keyCodeError == noErr else {
return keyCodeError
}
var eventKeyModifiers = UInt32()
let keyModifiersError = GetEventParameter(
event,
UInt32(kEventParamKeyModifiers),
typeUInt32,
nil,
MemoryLayout<UInt32>.size,
nil,
&eventKeyModifiers
)
guard keyModifiersError == noErr else {
return keyModifiersError
}
let shortcut = KeyboardShortcuts.Shortcut(carbonKeyCode: Int(eventKeyCode), carbonModifiers: Int(eventKeyModifiers))
guard let hotKey = (hotKeys.values.first { $0.shortcut == shortcut }) else {
return OSStatus(eventNotHandledErr)
}
switch Int(GetEventKind(event)) {
case kEventRawKeyDown:
hotKey.onKeyDown(hotKey.shortcut)
return noErr
case kEventRawKeyUp:
hotKey.onKeyUp(hotKey.shortcut)
return noErr
default:
break
}
return OSStatus(eventNotHandledErr)
}
}
extension CarbonKeyboardShortcuts {
static var system: [KeyboardShortcuts.Shortcut] {
var shortcutsUnmanaged: Unmanaged<CFArray>?
guard
CopySymbolicHotKeys(&shortcutsUnmanaged) == noErr,
let shortcuts = shortcutsUnmanaged?.takeRetainedValue() as? [[String: Any]]
else {
assertionFailure("Could not get system keyboard shortcuts")
return []
}
return shortcuts.compactMap {
guard
($0[kHISymbolicHotKeyEnabled] as? Bool) == true,
let carbonKeyCode = $0[kHISymbolicHotKeyCode] as? Int,
let carbonModifiers = $0[kHISymbolicHotKeyModifiers] as? Int
else {
return nil
}
return KeyboardShortcuts.Shortcut(
carbonKeyCode: carbonKeyCode,
carbonModifiers: carbonModifiers
)
}
}
}