aboutsummaryrefslogtreecommitdiff
path: root/ui/cocoa.m
blob: 68bff4ff379626ccc9e5376f84e8e2063525cc9a (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
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
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059
2060
2061
2062
2063
2064
2065
2066
2067
2068
2069
2070
2071
2072
2073
2074
2075
2076
2077
2078
2079
2080
2081
2082
2083
2084
2085
2086
2087
2088
2089
2090
2091
2092
2093
2094
2095
2096
2097
2098
2099
2100
2101
2102
2103
2104
2105
2106
2107
2108
2109
2110
2111
2112
2113
2114
2115
2116
2117
2118
2119
2120
2121
2122
2123
2124
2125
/*
 * QEMU Cocoa CG display driver
 *
 * Copyright (c) 2008 Mike Kronenberg
 *
 * 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.
 */

#include "qemu/osdep.h"

#import <Cocoa/Cocoa.h>
#include <crt_externs.h>

#include "qemu/help-texts.h"
#include "qemu-main.h"
#include "ui/clipboard.h"
#include "ui/console.h"
#include "ui/input.h"
#include "ui/kbd-state.h"
#include "sysemu/sysemu.h"
#include "sysemu/runstate.h"
#include "sysemu/cpu-throttle.h"
#include "qapi/error.h"
#include "qapi/qapi-commands-block.h"
#include "qapi/qapi-commands-machine.h"
#include "qapi/qapi-commands-misc.h"
#include "sysemu/blockdev.h"
#include "qemu-version.h"
#include "qemu/cutils.h"
#include "qemu/main-loop.h"
#include "qemu/module.h"
#include <Carbon/Carbon.h>
#include "hw/core/cpu.h"

#ifndef MAC_OS_X_VERSION_10_13
#define MAC_OS_X_VERSION_10_13 101300
#endif

/* 10.14 deprecates NSOnState and NSOffState in favor of
 * NSControlStateValueOn/Off, which were introduced in 10.13.
 * Define for older versions
 */
#if MAC_OS_X_VERSION_MAX_ALLOWED < MAC_OS_X_VERSION_10_13
#define NSControlStateValueOn NSOnState
#define NSControlStateValueOff NSOffState
#endif

//#define DEBUG

#ifdef DEBUG
#define COCOA_DEBUG(...)  { (void) fprintf (stdout, __VA_ARGS__); }
#else
#define COCOA_DEBUG(...)  ((void) 0)
#endif

#define cgrect(nsrect) (*(CGRect *)&(nsrect))

typedef struct {
    int width;
    int height;
} QEMUScreen;

static void cocoa_update(DisplayChangeListener *dcl,
                         int x, int y, int w, int h);

static void cocoa_switch(DisplayChangeListener *dcl,
                         DisplaySurface *surface);

static void cocoa_refresh(DisplayChangeListener *dcl);

static NSWindow *normalWindow;
static const DisplayChangeListenerOps dcl_ops = {
    .dpy_name          = "cocoa",
    .dpy_gfx_update = cocoa_update,
    .dpy_gfx_switch = cocoa_switch,
    .dpy_refresh = cocoa_refresh,
};
static DisplayChangeListener dcl = {
    .ops = &dcl_ops,
};
static int last_buttons;
static int cursor_hide = 1;
static int left_command_key_enabled = 1;
static bool swap_opt_cmd;

static int gArgc;
static char **gArgv;
static bool stretch_video;
static NSTextField *pauseLabel;

static QemuSemaphore display_init_sem;
static QemuSemaphore app_started_sem;
static bool allow_events;

static NSInteger cbchangecount = -1;
static QemuClipboardInfo *cbinfo;
static QemuEvent cbevent;

// Utility functions to run specified code block with iothread lock held
typedef void (^CodeBlock)(void);
typedef bool (^BoolCodeBlock)(void);

static void with_iothread_lock(CodeBlock block)
{
    bool locked = qemu_mutex_iothread_locked();
    if (!locked) {
        qemu_mutex_lock_iothread();
    }
    block();
    if (!locked) {
        qemu_mutex_unlock_iothread();
    }
}

static bool bool_with_iothread_lock(BoolCodeBlock block)
{
    bool locked = qemu_mutex_iothread_locked();
    bool val;

    if (!locked) {
        qemu_mutex_lock_iothread();
    }
    val = block();
    if (!locked) {
        qemu_mutex_unlock_iothread();
    }
    return val;
}

// Mac to QKeyCode conversion
static const int mac_to_qkeycode_map[] = {
    [kVK_ANSI_A] = Q_KEY_CODE_A,
    [kVK_ANSI_B] = Q_KEY_CODE_B,
    [kVK_ANSI_C] = Q_KEY_CODE_C,
    [kVK_ANSI_D] = Q_KEY_CODE_D,
    [kVK_ANSI_E] = Q_KEY_CODE_E,
    [kVK_ANSI_F] = Q_KEY_CODE_F,
    [kVK_ANSI_G] = Q_KEY_CODE_G,
    [kVK_ANSI_H] = Q_KEY_CODE_H,
    [kVK_ANSI_I] = Q_KEY_CODE_I,
    [kVK_ANSI_J] = Q_KEY_CODE_J,
    [kVK_ANSI_K] = Q_KEY_CODE_K,
    [kVK_ANSI_L] = Q_KEY_CODE_L,
    [kVK_ANSI_M] = Q_KEY_CODE_M,
    [kVK_ANSI_N] = Q_KEY_CODE_N,
    [kVK_ANSI_O] = Q_KEY_CODE_O,
    [kVK_ANSI_P] = Q_KEY_CODE_P,
    [kVK_ANSI_Q] = Q_KEY_CODE_Q,
    [kVK_ANSI_R] = Q_KEY_CODE_R,
    [kVK_ANSI_S] = Q_KEY_CODE_S,
    [kVK_ANSI_T] = Q_KEY_CODE_T,
    [kVK_ANSI_U] = Q_KEY_CODE_U,
    [kVK_ANSI_V] = Q_KEY_CODE_V,
    [kVK_ANSI_W] = Q_KEY_CODE_W,
    [kVK_ANSI_X] = Q_KEY_CODE_X,
    [kVK_ANSI_Y] = Q_KEY_CODE_Y,
    [kVK_ANSI_Z] = Q_KEY_CODE_Z,

    [kVK_ANSI_0] = Q_KEY_CODE_0,
    [kVK_ANSI_1] = Q_KEY_CODE_1,
    [kVK_ANSI_2] = Q_KEY_CODE_2,
    [kVK_ANSI_3] = Q_KEY_CODE_3,
    [kVK_ANSI_4] = Q_KEY_CODE_4,
    [kVK_ANSI_5] = Q_KEY_CODE_5,
    [kVK_ANSI_6] = Q_KEY_CODE_6,
    [kVK_ANSI_7] = Q_KEY_CODE_7,
    [kVK_ANSI_8] = Q_KEY_CODE_8,
    [kVK_ANSI_9] = Q_KEY_CODE_9,

    [kVK_ANSI_Grave] = Q_KEY_CODE_GRAVE_ACCENT,
    [kVK_ANSI_Minus] = Q_KEY_CODE_MINUS,
    [kVK_ANSI_Equal] = Q_KEY_CODE_EQUAL,
    [kVK_Delete] = Q_KEY_CODE_BACKSPACE,
    [kVK_CapsLock] = Q_KEY_CODE_CAPS_LOCK,
    [kVK_Tab] = Q_KEY_CODE_TAB,
    [kVK_Return] = Q_KEY_CODE_RET,
    [kVK_ANSI_LeftBracket] = Q_KEY_CODE_BRACKET_LEFT,
    [kVK_ANSI_RightBracket] = Q_KEY_CODE_BRACKET_RIGHT,
    [kVK_ANSI_Backslash] = Q_KEY_CODE_BACKSLASH,
    [kVK_ANSI_Semicolon] = Q_KEY_CODE_SEMICOLON,
    [kVK_ANSI_Quote] = Q_KEY_CODE_APOSTROPHE,
    [kVK_ANSI_Comma] = Q_KEY_CODE_COMMA,
    [kVK_ANSI_Period] = Q_KEY_CODE_DOT,
    [kVK_ANSI_Slash] = Q_KEY_CODE_SLASH,
    [kVK_Space] = Q_KEY_CODE_SPC,

    [kVK_ANSI_Keypad0] = Q_KEY_CODE_KP_0,
    [kVK_ANSI_Keypad1] = Q_KEY_CODE_KP_1,
    [kVK_ANSI_Keypad2] = Q_KEY_CODE_KP_2,
    [kVK_ANSI_Keypad3] = Q_KEY_CODE_KP_3,
    [kVK_ANSI_Keypad4] = Q_KEY_CODE_KP_4,
    [kVK_ANSI_Keypad5] = Q_KEY_CODE_KP_5,
    [kVK_ANSI_Keypad6] = Q_KEY_CODE_KP_6,
    [kVK_ANSI_Keypad7] = Q_KEY_CODE_KP_7,
    [kVK_ANSI_Keypad8] = Q_KEY_CODE_KP_8,
    [kVK_ANSI_Keypad9] = Q_KEY_CODE_KP_9,
    [kVK_ANSI_KeypadDecimal] = Q_KEY_CODE_KP_DECIMAL,
    [kVK_ANSI_KeypadEnter] = Q_KEY_CODE_KP_ENTER,
    [kVK_ANSI_KeypadPlus] = Q_KEY_CODE_KP_ADD,
    [kVK_ANSI_KeypadMinus] = Q_KEY_CODE_KP_SUBTRACT,
    [kVK_ANSI_KeypadMultiply] = Q_KEY_CODE_KP_MULTIPLY,
    [kVK_ANSI_KeypadDivide] = Q_KEY_CODE_KP_DIVIDE,
    [kVK_ANSI_KeypadEquals] = Q_KEY_CODE_KP_EQUALS,
    [kVK_ANSI_KeypadClear] = Q_KEY_CODE_NUM_LOCK,

    [kVK_UpArrow] = Q_KEY_CODE_UP,
    [kVK_DownArrow] = Q_KEY_CODE_DOWN,
    [kVK_LeftArrow] = Q_KEY_CODE_LEFT,
    [kVK_RightArrow] = Q_KEY_CODE_RIGHT,

    [kVK_Help] = Q_KEY_CODE_INSERT,
    [kVK_Home] = Q_KEY_CODE_HOME,
    [kVK_PageUp] = Q_KEY_CODE_PGUP,
    [kVK_PageDown] = Q_KEY_CODE_PGDN,
    [kVK_End] = Q_KEY_CODE_END,
    [kVK_ForwardDelete] = Q_KEY_CODE_DELETE,

    [kVK_Escape] = Q_KEY_CODE_ESC,

    /* The Power key can't be used directly because the operating system uses
     * it. This key can be emulated by using it in place of another key such as
     * F1. Don't forget to disable the real key binding.
     */
    /* [kVK_F1] = Q_KEY_CODE_POWER, */

    [kVK_F1] = Q_KEY_CODE_F1,
    [kVK_F2] = Q_KEY_CODE_F2,
    [kVK_F3] = Q_KEY_CODE_F3,
    [kVK_F4] = Q_KEY_CODE_F4,
    [kVK_F5] = Q_KEY_CODE_F5,
    [kVK_F6] = Q_KEY_CODE_F6,
    [kVK_F7] = Q_KEY_CODE_F7,
    [kVK_F8] = Q_KEY_CODE_F8,
    [kVK_F9] = Q_KEY_CODE_F9,
    [kVK_F10] = Q_KEY_CODE_F10,
    [kVK_F11] = Q_KEY_CODE_F11,
    [kVK_F12] = Q_KEY_CODE_F12,
    [kVK_F13] = Q_KEY_CODE_PRINT,
    [kVK_F14] = Q_KEY_CODE_SCROLL_LOCK,
    [kVK_F15] = Q_KEY_CODE_PAUSE,

    // JIS keyboards only
    [kVK_JIS_Yen] = Q_KEY_CODE_YEN,
    [kVK_JIS_Underscore] = Q_KEY_CODE_RO,
    [kVK_JIS_KeypadComma] = Q_KEY_CODE_KP_COMMA,
    [kVK_JIS_Eisu] = Q_KEY_CODE_MUHENKAN,
    [kVK_JIS_Kana] = Q_KEY_CODE_HENKAN,

    /*
     * The eject and volume keys can't be used here because they are handled at
     * a lower level than what an Application can see.
     */
};

static int cocoa_keycode_to_qemu(int keycode)
{
    if (ARRAY_SIZE(mac_to_qkeycode_map) <= keycode) {
        error_report("(cocoa) warning unknown keycode 0x%x", keycode);
        return 0;
    }
    return mac_to_qkeycode_map[keycode];
}

/* Displays an alert dialog box with the specified message */
static void QEMU_Alert(NSString *message)
{
    NSAlert *alert;
    alert = [NSAlert new];
    [alert setMessageText: message];
    [alert runModal];
}

/* Handles any errors that happen with a device transaction */
static void handleAnyDeviceErrors(Error * err)
{
    if (err) {
        QEMU_Alert([NSString stringWithCString: error_get_pretty(err)
                                      encoding: NSASCIIStringEncoding]);
        error_free(err);
    }
}

/*
 ------------------------------------------------------
    QemuCocoaView
 ------------------------------------------------------
*/
@interface QemuCocoaView : NSView
{
    QEMUScreen screen;
    NSWindow *fullScreenWindow;
    float cx,cy,cw,ch,cdx,cdy;
    pixman_image_t *pixman_image;
    QKbdState *kbd;
    BOOL isMouseGrabbed;
    BOOL isFullscreen;
    BOOL isAbsoluteEnabled;
    CFMachPortRef eventsTap;
}
- (void) switchSurface:(pixman_image_t *)image;
- (void) grabMouse;
- (void) ungrabMouse;
- (void) toggleFullScreen:(id)sender;
- (void) setFullGrab:(id)sender;
- (void) handleMonitorInput:(NSEvent *)event;
- (bool) handleEvent:(NSEvent *)event;
- (bool) handleEventLocked:(NSEvent *)event;
- (void) setAbsoluteEnabled:(BOOL)tIsAbsoluteEnabled;
/* The state surrounding mouse grabbing is potentially confusing.
 * isAbsoluteEnabled tracks qemu_input_is_absolute() [ie "is the emulated
 *   pointing device an absolute-position one?"], but is only updated on
 *   next refresh.
 * isMouseGrabbed tracks whether GUI events are directed to the guest;
 *   it controls whether special keys like Cmd get sent to the guest,
 *   and whether we capture the mouse when in non-absolute mode.
 */
- (BOOL) isMouseGrabbed;
- (BOOL) isAbsoluteEnabled;
- (float) cdx;
- (float) cdy;
- (QEMUScreen) gscreen;
- (void) raiseAllKeys;
@end

QemuCocoaView *cocoaView;

static CGEventRef handleTapEvent(CGEventTapProxy proxy, CGEventType type, CGEventRef cgEvent, void *userInfo)
{
    QemuCocoaView *cocoaView = userInfo;
    NSEvent *event = [NSEvent eventWithCGEvent:cgEvent];
    if ([cocoaView isMouseGrabbed] && [cocoaView handleEvent:event]) {
        COCOA_DEBUG("Global events tap: qemu handled the event, capturing!\n");
        return NULL;
    }
    COCOA_DEBUG("Global events tap: qemu did not handle the event, letting it through...\n");

    return cgEvent;
}

@implementation QemuCocoaView
- (id)initWithFrame:(NSRect)frameRect
{
    COCOA_DEBUG("QemuCocoaView: initWithFrame\n");

    self = [super initWithFrame:frameRect];
    if (self) {

        screen.width = frameRect.size.width;
        screen.height = frameRect.size.height;
        kbd = qkbd_state_init(dcl.con);

    }
    return self;
}

- (void) dealloc
{
    COCOA_DEBUG("QemuCocoaView: dealloc\n");

    if (pixman_image) {
        pixman_image_unref(pixman_image);
    }

    qkbd_state_free(kbd);

    if (eventsTap) {
        CFRelease(eventsTap);
    }

    [super dealloc];
}

- (BOOL) isOpaque
{
    return YES;
}

- (BOOL) screenContainsPoint:(NSPoint) p
{
    return (p.x > -1 && p.x < screen.width && p.y > -1 && p.y < screen.height);
}

/* Get location of event and convert to virtual screen coordinate */
- (CGPoint) screenLocationOfEvent:(NSEvent *)ev
{
    NSWindow *eventWindow = [ev window];
    // XXX: Use CGRect and -convertRectFromScreen: to support macOS 10.10
    CGRect r = CGRectZero;
    r.origin = [ev locationInWindow];
    if (!eventWindow) {
        if (!isFullscreen) {
            return [[self window] convertRectFromScreen:r].origin;
        } else {
            CGPoint locationInSelfWindow = [[self window] convertRectFromScreen:r].origin;
            CGPoint loc = [self convertPoint:locationInSelfWindow fromView:nil];
            if (stretch_video) {
                loc.x /= cdx;
                loc.y /= cdy;
            }
            return loc;
        }
    } else if ([[self window] isEqual:eventWindow]) {
        if (!isFullscreen) {
            return r.origin;
        } else {
            CGPoint loc = [self convertPoint:r.origin fromView:nil];
            if (stretch_video) {
                loc.x /= cdx;
                loc.y /= cdy;
            }
            return loc;
        }
    } else {
        return [[self window] convertRectFromScreen:[eventWindow convertRectToScreen:r]].origin;
    }
}

- (void) hideCursor
{
    if (!cursor_hide) {
        return;
    }
    [NSCursor hide];
}

- (void) unhideCursor
{
    if (!cursor_hide) {
        return;
    }
    [NSCursor unhide];
}

- (void) drawRect:(NSRect) rect
{
    COCOA_DEBUG("QemuCocoaView: drawRect\n");

    // get CoreGraphic context
    CGContextRef viewContextRef = [[NSGraphicsContext currentContext] CGContext];

    CGContextSetInterpolationQuality (viewContextRef, kCGInterpolationNone);
    CGContextSetShouldAntialias (viewContextRef, NO);

    // draw screen bitmap directly to Core Graphics context
    if (!pixman_image) {
        // Draw request before any guest device has set up a framebuffer:
        // just draw an opaque black rectangle
        CGContextSetRGBFillColor(viewContextRef, 0, 0, 0, 1.0);
        CGContextFillRect(viewContextRef, NSRectToCGRect(rect));
    } else {
        int w = pixman_image_get_width(pixman_image);
        int h = pixman_image_get_height(pixman_image);
        int bitsPerPixel = PIXMAN_FORMAT_BPP(pixman_image_get_format(pixman_image));
        int stride = pixman_image_get_stride(pixman_image);
        CGDataProviderRef dataProviderRef = CGDataProviderCreateWithData(
            NULL,
            pixman_image_get_data(pixman_image),
            stride * h,
            NULL
        );
        CGImageRef imageRef = CGImageCreate(
            w, //width
            h, //height
            DIV_ROUND_UP(bitsPerPixel, 8) * 2, //bitsPerComponent
            bitsPerPixel, //bitsPerPixel
            stride, //bytesPerRow
            CGColorSpaceCreateWithName(kCGColorSpaceSRGB), //colorspace
            kCGBitmapByteOrder32Little | kCGImageAlphaNoneSkipFirst, //bitmapInfo
            dataProviderRef, //provider
            NULL, //decode
            0, //interpolate
            kCGRenderingIntentDefault //intent
        );
        // selective drawing code (draws only dirty rectangles) (OS X >= 10.4)
        const NSRect *rectList;
        NSInteger rectCount;
        int i;
        CGImageRef clipImageRef;
        CGRect clipRect;

        [self getRectsBeingDrawn:&rectList count:&rectCount];
        for (i = 0; i < rectCount; i++) {
            clipRect.origin.x = rectList[i].origin.x / cdx;
            clipRect.origin.y = (float)h - (rectList[i].origin.y + rectList[i].size.height) / cdy;
            clipRect.size.width = rectList[i].size.width / cdx;
            clipRect.size.height = rectList[i].size.height / cdy;
            clipImageRef = CGImageCreateWithImageInRect(
                                                        imageRef,
                                                        clipRect
                                                        );
            CGContextDrawImage (viewContextRef, cgrect(rectList[i]), clipImageRef);
            CGImageRelease (clipImageRef);
        }
        CGImageRelease (imageRef);
        CGDataProviderRelease(dataProviderRef);
    }
}

- (void) setContentDimensions
{
    COCOA_DEBUG("QemuCocoaView: setContentDimensions\n");

    if (isFullscreen) {
        cdx = [[NSScreen mainScreen] frame].size.width / (float)screen.width;
        cdy = [[NSScreen mainScreen] frame].size.height / (float)screen.height;

        /* stretches video, but keeps same aspect ratio */
        if (stretch_video == true) {
            /* use smallest stretch value - prevents clipping on sides */
            if (MIN(cdx, cdy) == cdx) {
                cdy = cdx;
            } else {
                cdx = cdy;
            }
        } else {  /* No stretching */
            cdx = cdy = 1;
        }
        cw = screen.width * cdx;
        ch = screen.height * cdy;
        cx = ([[NSScreen mainScreen] frame].size.width - cw) / 2.0;
        cy = ([[NSScreen mainScreen] frame].size.height - ch) / 2.0;
    } else {
        cx = 0;
        cy = 0;
        cw = screen.width;
        ch = screen.height;
        cdx = 1.0;
        cdy = 1.0;
    }
}

- (void) updateUIInfoLocked
{
    /* Must be called with the iothread lock, i.e. via updateUIInfo */
    NSSize frameSize;
    QemuUIInfo info;

    if (!qemu_console_is_graphic(dcl.con)) {
        return;
    }

    if ([self window]) {
        NSDictionary *description = [[[self window] screen] deviceDescription];
        CGDirectDisplayID display = [[description objectForKey:@"NSScreenNumber"] unsignedIntValue];
        NSSize screenSize = [[[self window] screen] frame].size;
        CGSize screenPhysicalSize = CGDisplayScreenSize(display);

        frameSize = isFullscreen ? screenSize : [self frame].size;
        info.width_mm = frameSize.width / screenSize.width * screenPhysicalSize.width;
        info.height_mm = frameSize.height / screenSize.height * screenPhysicalSize.height;
    } else {
        frameSize = [self frame].size;
        info.width_mm = 0;
        info.height_mm = 0;
    }

    info.xoff = 0;
    info.yoff = 0;
    info.width = frameSize.width;
    info.height = frameSize.height;

    dpy_set_ui_info(dcl.con, &info, TRUE);
}

- (void) updateUIInfo
{
    if (!allow_events) {
        /*
         * Don't try to tell QEMU about UI information in the application
         * startup phase -- we haven't yet registered dcl with the QEMU UI
         * layer, and also trying to take the iothread lock would deadlock.
         * When cocoa_display_init() does register the dcl, the UI layer
         * will call cocoa_switch(), which will call updateUIInfo, so
         * we don't lose any information here.
         */
        return;
    }

    with_iothread_lock(^{
        [self updateUIInfoLocked];
    });
}

- (void)viewDidMoveToWindow
{
    [self updateUIInfo];
}

- (void) switchSurface:(pixman_image_t *)image
{
    COCOA_DEBUG("QemuCocoaView: switchSurface\n");

    int w = pixman_image_get_width(image);
    int h = pixman_image_get_height(image);
    /* cdx == 0 means this is our very first surface, in which case we need
     * to recalculate the content dimensions even if it happens to be the size
     * of the initial empty window.
     */
    bool isResize = (w != screen.width || h != screen.height || cdx == 0.0);

    int oldh = screen.height;
    if (isResize) {
        // Resize before we trigger the redraw, or we'll redraw at the wrong size
        COCOA_DEBUG("switchSurface: new size %d x %d\n", w, h);
        screen.width = w;
        screen.height = h;
        [self setContentDimensions];
        [self setFrame:NSMakeRect(cx, cy, cw, ch)];
    }

    // update screenBuffer
    if (pixman_image) {
        pixman_image_unref(pixman_image);
    }

    pixman_image = image;

    // update windows
    if (isFullscreen) {
        [[fullScreenWindow contentView] setFrame:[[NSScreen mainScreen] frame]];
        [normalWindow setFrame:NSMakeRect([normalWindow frame].origin.x, [normalWindow frame].origin.y - h + oldh, w, h + [normalWindow frame].size.height - oldh) display:NO animate:NO];
    } else {
        if (qemu_name)
            [normalWindow setTitle:[NSString stringWithFormat:@"QEMU %s", qemu_name]];
        [normalWindow setFrame:NSMakeRect([normalWindow frame].origin.x, [normalWindow frame].origin.y - h + oldh, w, h + [normalWindow frame].size.height - oldh) display:YES animate:NO];
    }

    if (isResize) {
        [normalWindow center];
    }
}

- (void) toggleFullScreen:(id)sender
{
    COCOA_DEBUG("QemuCocoaView: toggleFullScreen\n");

    if (isFullscreen) { // switch from fullscreen to desktop
        isFullscreen = FALSE;
        [self ungrabMouse];
        [self setContentDimensions];
        [fullScreenWindow close];
        [normalWindow setContentView: self];
        [normalWindow makeKeyAndOrderFront: self];
        [NSMenu setMenuBarVisible:YES];
    } else { // switch from desktop to fullscreen
        isFullscreen = TRUE;
        [normalWindow orderOut: nil]; /* Hide the window */
        [self grabMouse];
        [self setContentDimensions];
        [NSMenu setMenuBarVisible:NO];
        fullScreenWindow = [[NSWindow alloc] initWithContentRect:[[NSScreen mainScreen] frame]
            styleMask:NSWindowStyleMaskBorderless
            backing:NSBackingStoreBuffered
            defer:NO];
        [fullScreenWindow setAcceptsMouseMovedEvents: YES];
        [fullScreenWindow setHasShadow:NO];
        [fullScreenWindow setBackgroundColor: [NSColor blackColor]];
        [self setFrame:NSMakeRect(cx, cy, cw, ch)];
        [[fullScreenWindow contentView] addSubview: self];
        [fullScreenWindow makeKeyAndOrderFront:self];
    }
}

- (void) setFullGrab:(id)sender
{
    COCOA_DEBUG("QemuCocoaView: setFullGrab\n");

    CGEventMask mask = CGEventMaskBit(kCGEventKeyDown) | CGEventMaskBit(kCGEventKeyUp) | CGEventMaskBit(kCGEventFlagsChanged);
    eventsTap = CGEventTapCreate(kCGHIDEventTap, kCGHeadInsertEventTap, kCGEventTapOptionDefault,
                                 mask, handleTapEvent, self);
    if (!eventsTap) {
        warn_report("Could not create event tap, system key combos will not be captured.\n");
        return;
    } else {
        COCOA_DEBUG("Global events tap created! Will capture system key combos.\n");
    }

    CFRunLoopRef runLoop = CFRunLoopGetCurrent();
    if (!runLoop) {
        warn_report("Could not obtain current CF RunLoop, system key combos will not be captured.\n");
        return;
    }

    CFRunLoopSourceRef tapEventsSrc = CFMachPortCreateRunLoopSource(kCFAllocatorDefault, eventsTap, 0);
    if (!tapEventsSrc ) {
        warn_report("Could not obtain current CF RunLoop, system key combos will not be captured.\n");
        return;
    }

    CFRunLoopAddSource(runLoop, tapEventsSrc, kCFRunLoopDefaultMode);
    CFRelease(tapEventsSrc);
}

- (void) toggleKey: (int)keycode {
    qkbd_state_key_event(kbd, keycode, !qkbd_state_key_get(kbd, keycode));
}

// Does the work of sending input to the monitor
- (void) handleMonitorInput:(NSEvent *)event
{
    int keysym = 0;
    int control_key = 0;

    // if the control key is down
    if ([event modifierFlags] & NSEventModifierFlagControl) {
        control_key = 1;
    }

    /* translates Macintosh keycodes to QEMU's keysym */

    static const int without_control_translation[] = {
        [0 ... 0xff] = 0,   // invalid key

        [kVK_UpArrow]       = QEMU_KEY_UP,
        [kVK_DownArrow]     = QEMU_KEY_DOWN,
        [kVK_RightArrow]    = QEMU_KEY_RIGHT,
        [kVK_LeftArrow]     = QEMU_KEY_LEFT,
        [kVK_Home]          = QEMU_KEY_HOME,
        [kVK_End]           = QEMU_KEY_END,
        [kVK_PageUp]        = QEMU_KEY_PAGEUP,
        [kVK_PageDown]      = QEMU_KEY_PAGEDOWN,
        [kVK_ForwardDelete] = QEMU_KEY_DELETE,
        [kVK_Delete]        = QEMU_KEY_BACKSPACE,
    };

    static const int with_control_translation[] = {
        [0 ... 0xff] = 0,   // invalid key

        [kVK_UpArrow]       = QEMU_KEY_CTRL_UP,
        [kVK_DownArrow]     = QEMU_KEY_CTRL_DOWN,
        [kVK_RightArrow]    = QEMU_KEY_CTRL_RIGHT,
        [kVK_LeftArrow]     = QEMU_KEY_CTRL_LEFT,
        [kVK_Home]          = QEMU_KEY_CTRL_HOME,
        [kVK_End]           = QEMU_KEY_CTRL_END,
        [kVK_PageUp]        = QEMU_KEY_CTRL_PAGEUP,
        [kVK_PageDown]      = QEMU_KEY_CTRL_PAGEDOWN,
    };

    if (control_key != 0) { /* If the control key is being used */
        if ([event keyCode] < ARRAY_SIZE(with_control_translation)) {
            keysym = with_control_translation[[event keyCode]];
        }
    } else {
        if ([event keyCode] < ARRAY_SIZE(without_control_translation)) {
            keysym = without_control_translation[[event keyCode]];
        }
    }

    // if not a key that needs translating
    if (keysym == 0) {
        NSString *ks = [event characters];
        if ([ks length] > 0) {
            keysym = [ks characterAtIndex:0];
        }
    }

    if (keysym) {
        kbd_put_keysym(keysym);
    }
}

- (bool) handleEvent:(NSEvent *)event
{
    if(!allow_events) {
        /*
         * Just let OSX have all events that arrive before
         * applicationDidFinishLaunching.
         * This avoids a deadlock on the iothread lock, which cocoa_display_init()
         * will not drop until after the app_started_sem is posted. (In theory
         * there should not be any such events, but OSX Catalina now emits some.)
         */
        return false;
    }
    return bool_with_iothread_lock(^{
        return [self handleEventLocked:event];
    });
}

- (bool) handleEventLocked:(NSEvent *)event
{
    /* Return true if we handled the event, false if it should be given to OSX */
    COCOA_DEBUG("QemuCocoaView: handleEvent\n");
    int buttons = 0;
    int keycode = 0;
    bool mouse_event = false;
    static bool switched_to_fullscreen = false;
    // Location of event in virtual screen coordinates
    NSPoint p = [self screenLocationOfEvent:event];
    NSUInteger modifiers = [event modifierFlags];

    /*
     * Check -[NSEvent modifierFlags] here.
     *
     * There is a NSEventType for an event notifying the change of
     * -[NSEvent modifierFlags], NSEventTypeFlagsChanged but these operations
     * are performed for any events because a modifier state may change while
     * the application is inactive (i.e. no events fire) and we don't want to
     * wait for another modifier state change to detect such a change.
     *
     * NSEventModifierFlagCapsLock requires a special treatment. The other flags
     * are handled in similar manners.
     *
     * NSEventModifierFlagCapsLock
     * ---------------------------
     *
     * If CapsLock state is changed, "up" and "down" events will be fired in
     * sequence, effectively updates CapsLock state on the guest.
     *
     * The other flags
     * ---------------
     *
     * If a flag is not set, fire "up" events for all keys which correspond to
     * the flag. Note that "down" events are not fired here because the flags
     * checked here do not tell what exact keys are down.
     *
     * If one of the keys corresponding to a flag is down, we rely on
     * -[NSEvent keyCode] of an event whose -[NSEvent type] is
     * NSEventTypeFlagsChanged to know the exact key which is down, which has
     * the following two downsides:
     * - It does not work when the application is inactive as described above.
     * - It malfactions *after* the modifier state is changed while the
     *   application is inactive. It is because -[NSEvent keyCode] does not tell
     *   if the key is up or down, and requires to infer the current state from
     *   the previous state. It is still possible to fix such a malfanction by
     *   completely leaving your hands from the keyboard, which hopefully makes
     *   this implementation usable enough.
     */
    if (!!(modifiers & NSEventModifierFlagCapsLock) !=
        qkbd_state_modifier_get(kbd, QKBD_MOD_CAPSLOCK)) {
        qkbd_state_key_event(kbd, Q_KEY_CODE_CAPS_LOCK, true);
        qkbd_state_key_event(kbd, Q_KEY_CODE_CAPS_LOCK, false);
    }

    if (!(modifiers & NSEventModifierFlagShift)) {
        qkbd_state_key_event(kbd, Q_KEY_CODE_SHIFT, false);
        qkbd_state_key_event(kbd, Q_KEY_CODE_SHIFT_R, false);
    }
    if (!(modifiers & NSEventModifierFlagControl)) {
        qkbd_state_key_event(kbd, Q_KEY_CODE_CTRL, false);
        qkbd_state_key_event(kbd, Q_KEY_CODE_CTRL_R, false);
    }
    if (!(modifiers & NSEventModifierFlagOption)) {
        if (swap_opt_cmd) {
            qkbd_state_key_event(kbd, Q_KEY_CODE_META_L, false);
            qkbd_state_key_event(kbd, Q_KEY_CODE_META_R, false);
        } else {
            qkbd_state_key_event(kbd, Q_KEY_CODE_ALT, false);
            qkbd_state_key_event(kbd, Q_KEY_CODE_ALT_R, false);
        }
    }
    if (!(modifiers & NSEventModifierFlagCommand)) {
        if (swap_opt_cmd) {
            qkbd_state_key_event(kbd, Q_KEY_CODE_ALT, false);
            qkbd_state_key_event(kbd, Q_KEY_CODE_ALT_R, false);
        } else {
            qkbd_state_key_event(kbd, Q_KEY_CODE_META_L, false);
            qkbd_state_key_event(kbd, Q_KEY_CODE_META_R, false);
        }
    }

    switch ([event type]) {
        case NSEventTypeFlagsChanged:
            switch ([event keyCode]) {
                case kVK_Shift:
                    if (!!(modifiers & NSEventModifierFlagShift)) {
                        [self toggleKey:Q_KEY_CODE_SHIFT];
                    }
                    break;

                case kVK_RightShift:
                    if (!!(modifiers & NSEventModifierFlagShift)) {
                        [self toggleKey:Q_KEY_CODE_SHIFT_R];
                    }
                    break;

                case kVK_Control:
                    if (!!(modifiers & NSEventModifierFlagControl)) {
                        [self toggleKey:Q_KEY_CODE_CTRL];
                    }
                    break;

                case kVK_RightControl:
                    if (!!(modifiers & NSEventModifierFlagControl)) {
                        [self toggleKey:Q_KEY_CODE_CTRL_R];
                    }
                    break;

                case kVK_Option:
                    if (!!(modifiers & NSEventModifierFlagOption)) {
                        if (swap_opt_cmd) {
                            [self toggleKey:Q_KEY_CODE_META_L];
                        } else {
                            [self toggleKey:Q_KEY_CODE_ALT];
                        }
                    }
                    break;

                case kVK_RightOption:
                    if (!!(modifiers & NSEventModifierFlagOption)) {
                        if (swap_opt_cmd) {
                            [self toggleKey:Q_KEY_CODE_META_R];
                        } else {
                            [self toggleKey:Q_KEY_CODE_ALT_R];
                        }
                    }
                    break;

                /* Don't pass command key changes to guest unless mouse is grabbed */
                case kVK_Command:
                    if (isMouseGrabbed &&
                        !!(modifiers & NSEventModifierFlagCommand) &&
                        left_command_key_enabled) {
                        if (swap_opt_cmd) {
                            [self toggleKey:Q_KEY_CODE_ALT];
                        } else {
                            [self toggleKey:Q_KEY_CODE_META_L];
                        }
                    }
                    break;

                case kVK_RightCommand:
                    if (isMouseGrabbed &&
                        !!(modifiers & NSEventModifierFlagCommand)) {
                        if (swap_opt_cmd) {
                            [self toggleKey:Q_KEY_CODE_ALT_R];
                        } else {
                            [self toggleKey:Q_KEY_CODE_META_R];
                        }
                    }
                    break;
            }
            break;
        case NSEventTypeKeyDown:
            keycode = cocoa_keycode_to_qemu([event keyCode]);

            // forward command key combos to the host UI unless the mouse is grabbed
            if (!isMouseGrabbed && ([event modifierFlags] & NSEventModifierFlagCommand)) {
                /*
                 * Prevent the command key from being stuck down in the guest
                 * when using Command-F to switch to full screen mode.
                 */
                if (keycode == Q_KEY_CODE_F) {
                    switched_to_fullscreen = true;
                }
                return false;
            }

            // default

            // handle control + alt Key Combos (ctrl+alt+[1..9,g] is reserved for QEMU)
            if (([event modifierFlags] & NSEventModifierFlagControl) && ([event modifierFlags] & NSEventModifierFlagOption)) {
                NSString *keychar = [event charactersIgnoringModifiers];
                if ([keychar length] == 1) {
                    char key = [keychar characterAtIndex:0];
                    switch (key) {

                        // enable graphic console
                        case '1' ... '9':
                            console_select(key - '0' - 1); /* ascii math */
                            return true;

                        // release the mouse grab
                        case 'g':
                            [self ungrabMouse];
                            return true;
                    }
                }
            }

            if (qemu_console_is_graphic(NULL)) {
                qkbd_state_key_event(kbd, keycode, true);
            } else {
                [self handleMonitorInput: event];
            }
            break;
        case NSEventTypeKeyUp:
            keycode = cocoa_keycode_to_qemu([event keyCode]);

            // don't pass the guest a spurious key-up if we treated this
            // command-key combo as a host UI action
            if (!isMouseGrabbed && ([event modifierFlags] & NSEventModifierFlagCommand)) {
                return true;
            }

            if (qemu_console_is_graphic(NULL)) {
                qkbd_state_key_event(kbd, keycode, false);
            }
            break;
        case NSEventTypeMouseMoved:
            if (isAbsoluteEnabled) {
                // Cursor re-entered into a window might generate events bound to screen coordinates
                // and `nil` window property, and in full screen mode, current window might not be
                // key window, where event location alone should suffice.
                if (![self screenContainsPoint:p] || !([[self window] isKeyWindow] || isFullscreen)) {
                    if (isMouseGrabbed) {
                        [self ungrabMouse];
                    }
                } else {
                    if (!isMouseGrabbed) {
                        [self grabMouse];
                    }
                }
            }
            mouse_event = true;
            break;
        case NSEventTypeLeftMouseDown:
            buttons |= MOUSE_EVENT_LBUTTON;
            mouse_event = true;
            break;
        case NSEventTypeRightMouseDown:
            buttons |= MOUSE_EVENT_RBUTTON;
            mouse_event = true;
            break;
        case NSEventTypeOtherMouseDown:
            buttons |= MOUSE_EVENT_MBUTTON;
            mouse_event = true;
            break;
        case NSEventTypeLeftMouseDragged:
            buttons |= MOUSE_EVENT_LBUTTON;
            mouse_event = true;
            break;
        case NSEventTypeRightMouseDragged:
            buttons |= MOUSE_EVENT_RBUTTON;
            mouse_event = true;
            break;
        case NSEventTypeOtherMouseDragged:
            buttons |= MOUSE_EVENT_MBUTTON;
            mouse_event = true;
            break;
        case NSEventTypeLeftMouseUp:
            mouse_event = true;
            if (!isMouseGrabbed && [self screenContainsPoint:p]) {
                /*
                 * In fullscreen mode, the window of cocoaView may not be the
                 * key window, therefore the position relative to the virtual
                 * screen alone will be sufficient.
                 */
                if(isFullscreen || [[self window] isKeyWindow]) {
                    [self grabMouse];
                }
            }
            break;
        case NSEventTypeRightMouseUp:
            mouse_event = true;
            break;
        case NSEventTypeOtherMouseUp:
            mouse_event = true;
            break;
        case NSEventTypeScrollWheel:
            /*
             * Send wheel events to the guest regardless of window focus.
             * This is in-line with standard Mac OS X UI behaviour.
             */

            /*
             * We shouldn't have got a scroll event when deltaY and delta Y
             * are zero, hence no harm in dropping the event
             */
            if ([event deltaY] != 0 || [event deltaX] != 0) {
            /* Determine if this is a scroll up or scroll down event */
                if ([event deltaY] != 0) {
                  buttons = ([event deltaY] > 0) ?
                    INPUT_BUTTON_WHEEL_UP : INPUT_BUTTON_WHEEL_DOWN;
                } else if ([event deltaX] != 0) {
                  buttons = ([event deltaX] > 0) ?
                    INPUT_BUTTON_WHEEL_LEFT : INPUT_BUTTON_WHEEL_RIGHT;
                }

                qemu_input_queue_btn(dcl.con, buttons, true);
                qemu_input_event_sync();
                qemu_input_queue_btn(dcl.con, buttons, false);
                qemu_input_event_sync();
            }

            /*
             * Since deltaX/deltaY also report scroll wheel events we prevent mouse
             * movement code from executing.
             */
            mouse_event = false;
            break;
        default:
            return false;
    }

    if (mouse_event) {
        /* Don't send button events to the guest unless we've got a
         * mouse grab or window focus. If we have neither then this event
         * is the user clicking on the background window to activate and
         * bring us to the front, which will be done by the sendEvent
         * call below. We definitely don't want to pass that click through
         * to the guest.
         */
        if ((isMouseGrabbed || [[self window] isKeyWindow]) &&
            (last_buttons != buttons)) {
            static uint32_t bmap[INPUT_BUTTON__MAX] = {
                [INPUT_BUTTON_LEFT]       = MOUSE_EVENT_LBUTTON,
                [INPUT_BUTTON_MIDDLE]     = MOUSE_EVENT_MBUTTON,
                [INPUT_BUTTON_RIGHT]      = MOUSE_EVENT_RBUTTON
            };
            qemu_input_update_buttons(dcl.con, bmap, last_buttons, buttons);
            last_buttons = buttons;
        }
        if (isMouseGrabbed) {
            if (isAbsoluteEnabled) {
                /* Note that the origin for Cocoa mouse coords is bottom left, not top left.
                 * The check on screenContainsPoint is to avoid sending out of range values for
                 * clicks in the titlebar.
                 */
                if ([self screenContainsPoint:p]) {
                    qemu_input_queue_abs(dcl.con, INPUT_AXIS_X, p.x, 0, screen.width);
                    qemu_input_queue_abs(dcl.con, INPUT_AXIS_Y, screen.height - p.y, 0, screen.height);
                }
            } else {
                qemu_input_queue_rel(dcl.con, INPUT_AXIS_X, (int)[event deltaX]);
                qemu_input_queue_rel(dcl.con, INPUT_AXIS_Y, (int)[event deltaY]);
            }
        } else {
            return false;
        }
        qemu_input_event_sync();
    }
    return true;
}

- (void) grabMouse
{
    COCOA_DEBUG("QemuCocoaView: grabMouse\n");

    if (!isFullscreen) {
        if (qemu_name)
            [normalWindow setTitle:[NSString stringWithFormat:@"QEMU %s - (Press ctrl + alt + g to release Mouse)", qemu_name]];
        else
            [normalWindow setTitle:@"QEMU - (Press ctrl + alt + g to release Mouse)"];
    }
    [self hideCursor];
    CGAssociateMouseAndMouseCursorPosition(isAbsoluteEnabled);
    isMouseGrabbed = TRUE; // while isMouseGrabbed = TRUE, QemuCocoaApp sends all events to [cocoaView handleEvent:]
}

- (void) ungrabMouse
{
    COCOA_DEBUG("QemuCocoaView: ungrabMouse\n");

    if (!isFullscreen) {
        if (qemu_name)
            [normalWindow setTitle:[NSString stringWithFormat:@"QEMU %s", qemu_name]];
        else
            [normalWindow setTitle:@"QEMU"];
    }
    [self unhideCursor];
    CGAssociateMouseAndMouseCursorPosition(TRUE);
    isMouseGrabbed = FALSE;
}

- (void) setAbsoluteEnabled:(BOOL)tIsAbsoluteEnabled {
    isAbsoluteEnabled = tIsAbsoluteEnabled;
    if (isMouseGrabbed) {
        CGAssociateMouseAndMouseCursorPosition(isAbsoluteEnabled);
    }
}
- (BOOL) isMouseGrabbed {return isMouseGrabbed;}
- (BOOL) isAbsoluteEnabled {return isAbsoluteEnabled;}
- (float) cdx {return cdx;}
- (float) cdy {return cdy;}
- (QEMUScreen) gscreen {return screen;}

/*
 * Makes the target think all down keys are being released.
 * This prevents a stuck key problem, since we will not see
 * key up events for those keys after we have lost focus.
 */
- (void) raiseAllKeys
{
    with_iothread_lock(^{
        qkbd_state_lift_all_keys(kbd);
    });
}
@end



/*
 ------------------------------------------------------
    QemuCocoaAppController
 ------------------------------------------------------
*/
@interface QemuCocoaAppController : NSObject
                                       <NSWindowDelegate, NSApplicationDelegate>
{
}
- (void)doToggleFullScreen:(id)sender;
- (void)toggleFullScreen:(id)sender;
- (void)showQEMUDoc:(id)sender;
- (void)zoomToFit:(id) sender;
- (void)displayConsole:(id)sender;
- (void)pauseQEMU:(id)sender;
- (void)resumeQEMU:(id)sender;
- (void)displayPause;
- (void)removePause;
- (void)restartQEMU:(id)sender;
- (void)powerDownQEMU:(id)sender;
- (void)ejectDeviceMedia:(id)sender;
- (void)changeDeviceMedia:(id)sender;
- (BOOL)verifyQuit;
- (void)openDocumentation:(NSString *)filename;
- (IBAction) do_about_menu_item: (id) sender;
- (void)adjustSpeed:(id)sender;
@end

@implementation QemuCocoaAppController
- (id) init
{
    COCOA_DEBUG("QemuCocoaAppController: init\n");

    self = [super init];
    if (self) {

        // create a view and add it to the window
        cocoaView = [[QemuCocoaView alloc] initWithFrame:NSMakeRect(0.0, 0.0, 640.0, 480.0)];
        if(!cocoaView) {
            error_report("(cocoa) can't create a view");
            exit(1);
        }

        // create a window
        normalWindow = [[NSWindow alloc] initWithContentRect:[cocoaView frame]
            styleMask:NSWindowStyleMaskTitled|NSWindowStyleMaskMiniaturizable|NSWindowStyleMaskClosable
            backing:NSBackingStoreBuffered defer:NO];
        if(!normalWindow) {
            error_report("(cocoa) can't create window");
            exit(1);
        }
        [normalWindow setAcceptsMouseMovedEvents:YES];
        [normalWindow setTitle:@"QEMU"];
        [normalWindow setContentView:cocoaView];
        [normalWindow makeKeyAndOrderFront:self];
        [normalWindow center];
        [normalWindow setDelegate: self];
        stretch_video = false;

        /* Used for displaying pause on the screen */
        pauseLabel = [NSTextField new];
        [pauseLabel setBezeled:YES];
        [pauseLabel setDrawsBackground:YES];
        [pauseLabel setBackgroundColor: [NSColor whiteColor]];
        [pauseLabel setEditable:NO];
        [pauseLabel setSelectable:NO];
        [pauseLabel setStringValue: @"Paused"];
        [pauseLabel setFont: [NSFont fontWithName: @"Helvetica" size: 90]];
        [pauseLabel setTextColor: [NSColor blackColor]];
        [pauseLabel sizeToFit];
    }
    return self;
}

- (void) dealloc
{
    COCOA_DEBUG("QemuCocoaAppController: dealloc\n");

    if (cocoaView)
        [cocoaView release];
    [super dealloc];
}

- (void)applicationDidFinishLaunching: (NSNotification *) note
{
    COCOA_DEBUG("QemuCocoaAppController: applicationDidFinishLaunching\n");
    allow_events = true;
    /* Tell cocoa_display_init to proceed */
    qemu_sem_post(&app_started_sem);
}

- (void)applicationWillTerminate:(NSNotification *)aNotification
{
    COCOA_DEBUG("QemuCocoaAppController: applicationWillTerminate\n");

    qemu_system_shutdown_request(SHUTDOWN_CAUSE_HOST_UI);

    /*
     * Sleep here, because returning will cause OSX to kill us
     * immediately; the QEMU main loop will handle the shutdown
     * request and terminate the process.
     */
    [NSThread sleepForTimeInterval:INFINITY];
}

- (BOOL)applicationShouldTerminateAfterLastWindowClosed:(NSApplication *)theApplication
{
    return YES;
}

- (NSApplicationTerminateReply)applicationShouldTerminate:
                                                         (NSApplication *)sender
{
    COCOA_DEBUG("QemuCocoaAppController: applicationShouldTerminate\n");
    return [self verifyQuit];
}

- (void)windowDidChangeScreen:(NSNotification *)notification
{
    [cocoaView updateUIInfo];
}

- (void)windowDidResize:(NSNotification *)notification
{
    [cocoaView updateUIInfo];
}

/* Called when the user clicks on a window's close button */
- (BOOL)windowShouldClose:(id)sender
{
    COCOA_DEBUG("QemuCocoaAppController: windowShouldClose\n");
    [NSApp terminate: sender];
    /* If the user allows the application to quit then the call to
     * NSApp terminate will never return. If we get here then the user
     * cancelled the quit, so we should return NO to not permit the
     * closing of this window.
     */
    return NO;
}

/* Called when QEMU goes into the background */
- (void) applicationWillResignActive: (NSNotification *)aNotification
{
    COCOA_DEBUG("QemuCocoaAppController: applicationWillResignActive\n");
    [cocoaView ungrabMouse];
    [cocoaView raiseAllKeys];
}

/* We abstract the method called by the Enter Fullscreen menu item
 * because Mac OS 10.7 and higher disables it. This is because of the
 * menu item's old selector's name toggleFullScreen:
 */
- (void) doToggleFullScreen:(id)sender
{
    [self toggleFullScreen:(id)sender];
}

- (void)toggleFullScreen:(id)sender
{
    COCOA_DEBUG("QemuCocoaAppController: toggleFullScreen\n");

    [cocoaView toggleFullScreen:sender];
}

- (void) setFullGrab:(id)sender
{
    COCOA_DEBUG("QemuCocoaAppController: setFullGrab\n");

    [cocoaView setFullGrab:sender];
}

/* Tries to find then open the specified filename */
- (void) openDocumentation: (NSString *) filename
{
    /* Where to look for local files */
    NSString *path_array[] = {@"../share/doc/qemu/", @"../doc/qemu/", @"docs/"};
    NSString *full_file_path;
    NSURL *full_file_url;

    /* iterate thru the possible paths until the file is found */
    int index;
    for (index = 0; index < ARRAY_SIZE(path_array); index++) {
        full_file_path = [[NSBundle mainBundle] executablePath];
        full_file_path = [full_file_path stringByDeletingLastPathComponent];
        full_file_path = [NSString stringWithFormat: @"%@/%@%@", full_file_path,
                          path_array[index], filename];
        full_file_url = [NSURL fileURLWithPath: full_file_path
                                   isDirectory: false];
        if ([[NSWorkspace sharedWorkspace] openURL: full_file_url] == YES) {
            return;
        }
    }

    /* If none of the paths opened a file */
    NSBeep();
    QEMU_Alert(@"Failed to open file");
}

- (void)showQEMUDoc:(id)sender
{
    COCOA_DEBUG("QemuCocoaAppController: showQEMUDoc\n");

    [self openDocumentation: @"index.html"];
}

/* Stretches video to fit host monitor size */
- (void)zoomToFit:(id) sender
{
    stretch_video = !stretch_video;
    if (stretch_video == true) {
        [sender setState: NSControlStateValueOn];
    } else {
        [sender setState: NSControlStateValueOff];
    }
}

/* Displays the console on the screen */
- (void)displayConsole:(id)sender
{
    console_select([sender tag]);
}

/* Pause the guest */
- (void)pauseQEMU:(id)sender
{
    with_iothread_lock(^{
        qmp_stop(NULL);
    });
    [sender setEnabled: NO];
    [[[sender menu] itemWithTitle: @"Resume"] setEnabled: YES];
    [self displayPause];
}

/* Resume running the guest operating system */
- (void)resumeQEMU:(id) sender
{
    with_iothread_lock(^{
        qmp_cont(NULL);
    });
    [sender setEnabled: NO];
    [[[sender menu] itemWithTitle: @"Pause"] setEnabled: YES];
    [self removePause];
}

/* Displays the word pause on the screen */
- (void)displayPause
{
    /* Coordinates have to be calculated each time because the window can change its size */
    int xCoord, yCoord, width, height;
    xCoord = ([normalWindow frame].size.width - [pauseLabel frame].size.width)/2;
    yCoord = [normalWindow frame].size.height - [pauseLabel frame].size.height - ([pauseLabel frame].size.height * .5);
    width = [pauseLabel frame].size.width;
    height = [pauseLabel frame].size.height;
    [pauseLabel setFrame: NSMakeRect(xCoord, yCoord, width, height)];
    [cocoaView addSubview: pauseLabel];
}

/* Removes the word pause from the screen */
- (void)removePause
{
    [pauseLabel removeFromSuperview];
}

/* Restarts QEMU */
- (void)restartQEMU:(id)sender
{
    with_iothread_lock(^{
        qmp_system_reset(NULL);
    });
}

/* Powers down QEMU */
- (void)powerDownQEMU:(id)sender
{
    with_iothread_lock(^{
        qmp_system_powerdown(NULL);
    });
}

/* Ejects the media.
 * Uses sender's tag to figure out the device to eject.
 */
- (void)ejectDeviceMedia:(id)sender
{
    NSString * drive;
    drive = [sender representedObject];
    if(drive == nil) {
        NSBeep();
        QEMU_Alert(@"Failed to find drive to eject!");
        return;
    }

    __block Error *err = NULL;
    with_iothread_lock(^{
        qmp_eject(true, [drive cStringUsingEncoding: NSASCIIStringEncoding],
                  false, NULL, false, false, &err);
    });
    handleAnyDeviceErrors(err);
}

/* Displays a dialog box asking the user to select an image file to load.
 * Uses sender's represented object value to figure out which drive to use.
 */
- (void)changeDeviceMedia:(id)sender
{
    /* Find the drive name */
    NSString * drive;
    drive = [sender representedObject];
    if(drive == nil) {
        NSBeep();
        QEMU_Alert(@"Could not find drive!");
        return;
    }

    /* Display the file open dialog */
    NSOpenPanel * openPanel;
    openPanel = [NSOpenPanel openPanel];
    [openPanel setCanChooseFiles: YES];
    [openPanel setAllowsMultipleSelection: NO];
    if([openPanel runModal] == NSModalResponseOK) {
        NSString * file = [[[openPanel URLs] objectAtIndex: 0] path];
        if(file == nil) {
            NSBeep();
            QEMU_Alert(@"Failed to convert URL to file path!");
            return;
        }

        __block Error *err = NULL;
        with_iothread_lock(^{
            qmp_blockdev_change_medium(true,
                                       [drive cStringUsingEncoding:
                                                  NSASCIIStringEncoding],
                                       false, NULL,
                                       [file cStringUsingEncoding:
                                                 NSASCIIStringEncoding],
                                       true, "raw",
                                       false, 0,
                                       &err);
        });
        handleAnyDeviceErrors(err);
    }
}

/* Verifies if the user really wants to quit */
- (BOOL)verifyQuit
{
    NSAlert *alert = [NSAlert new];
    [alert autorelease];
    [alert setMessageText: @"Are you sure you want to quit QEMU?"];
    [alert addButtonWithTitle: @"Cancel"];
    [alert addButtonWithTitle: @"Quit"];
    if([alert runModal] == NSAlertSecondButtonReturn) {
        return YES;
    } else {
        return NO;
    }
}

/* The action method for the About menu item */
- (IBAction) do_about_menu_item: (id) sender
{
    NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
    char *icon_path_c = get_relocated_path(CONFIG_QEMU_ICONDIR "/hicolor/512x512/apps/qemu.png");
    NSString *icon_path = [NSString stringWithUTF8String:icon_path_c];
    g_free(icon_path_c);
    NSImage *icon = [[NSImage alloc] initWithContentsOfFile:icon_path];
    NSString *version = @"QEMU emulator version " QEMU_FULL_VERSION;
    NSString *copyright = @QEMU_COPYRIGHT;
    NSDictionary *options;
    if (icon) {
        options = @{
            NSAboutPanelOptionApplicationIcon : icon,
            NSAboutPanelOptionApplicationVersion : version,
            @"Copyright" : copyright,
        };
        [icon release];
    } else {
        options = @{
            NSAboutPanelOptionApplicationVersion : version,
            @"Copyright" : copyright,
        };
    }
    [NSApp orderFrontStandardAboutPanelWithOptions:options];
    [pool release];
}

/* Used by the Speed menu items */
- (void)adjustSpeed:(id)sender
{
    int throttle_pct; /* throttle percentage */
    NSMenu *menu;

    menu = [sender menu];
    if (menu != nil)
    {
        /* Unselect the currently selected item */
        for (NSMenuItem *item in [menu itemArray]) {
            if (item.state == NSControlStateValueOn) {
                [item setState: NSControlStateValueOff];
                break;
            }
        }
    }

    // check the menu item
    [sender setState: NSControlStateValueOn];

    // get the throttle percentage
    throttle_pct = [sender tag];

    with_iothread_lock(^{
        cpu_throttle_set(throttle_pct);
    });
    COCOA_DEBUG("cpu throttling at %d%c\n", cpu_throttle_get_percentage(), '%');
}

@end

@interface QemuApplication : NSApplication
@end

@implementation QemuApplication
- (void)sendEvent:(NSEvent *)event
{
    COCOA_DEBUG("QemuApplication: sendEvent\n");
    if (![cocoaView handleEvent:event]) {
        [super sendEvent: event];
    }
}
@end

static void create_initial_menus(void)
{
    // Add menus
    NSMenu      *menu;
    NSMenuItem  *menuItem;

    [NSApp setMainMenu:[[NSMenu alloc] init]];
    [NSApp setServicesMenu:[[NSMenu alloc] initWithTitle:@"Services"]];

    // Application menu
    menu = [[NSMenu alloc] initWithTitle:@""];
    [menu addItemWithTitle:@"About QEMU" action:@selector(do_about_menu_item:) keyEquivalent:@""]; // About QEMU
    [menu addItem:[NSMenuItem separatorItem]]; //Separator
    menuItem = [menu addItemWithTitle:@"Services" action:nil keyEquivalent:@""];
    [menuItem setSubmenu:[NSApp servicesMenu]];
    [menu addItem:[NSMenuItem separatorItem]];
    [menu addItemWithTitle:@"Hide QEMU" action:@selector(hide:) keyEquivalent:@"h"]; //Hide QEMU
    menuItem = (NSMenuItem *)[menu addItemWithTitle:@"Hide Others" action:@selector(hideOtherApplications:) keyEquivalent:@"h"]; // Hide Others
    [menuItem setKeyEquivalentModifierMask:(NSEventModifierFlagOption|NSEventModifierFlagCommand)];
    [menu addItemWithTitle:@"Show All" action:@selector(unhideAllApplications:) keyEquivalent:@""]; // Show All
    [menu addItem:[NSMenuItem separatorItem]]; //Separator
    [menu addItemWithTitle:@"Quit QEMU" action:@selector(terminate:) keyEquivalent:@"q"];
    menuItem = [[NSMenuItem alloc] initWithTitle:@"Apple" action:nil keyEquivalent:@""];
    [menuItem setSubmenu:menu];
    [[NSApp mainMenu] addItem:menuItem];
    [NSApp performSelector:@selector(setAppleMenu:) withObject:menu]; // Workaround (this method is private since 10.4+)

    // Machine menu
    menu = [[NSMenu alloc] initWithTitle: @"Machine"];
    [menu setAutoenablesItems: NO];
    [menu addItem: [[[NSMenuItem alloc] initWithTitle: @"Pause" action: @selector(pauseQEMU:) keyEquivalent: @""] autorelease]];
    menuItem = [[[NSMenuItem alloc] initWithTitle: @"Resume" action: @selector(resumeQEMU:) keyEquivalent: @""] autorelease];
    [menu addItem: menuItem];
    [menuItem setEnabled: NO];
    [menu addItem: [NSMenuItem separatorItem]];
    [menu addItem: [[[NSMenuItem alloc] initWithTitle: @"Reset" action: @selector(restartQEMU:) keyEquivalent: @""] autorelease]];
    [menu addItem: [[[NSMenuItem alloc] initWithTitle: @"Power Down" action: @selector(powerDownQEMU:) keyEquivalent: @""] autorelease]];
    menuItem = [[[NSMenuItem alloc] initWithTitle: @"Machine" action:nil keyEquivalent:@""] autorelease];
    [menuItem setSubmenu:menu];
    [[NSApp mainMenu] addItem:menuItem];

    // View menu
    menu = [[NSMenu alloc] initWithTitle:@"View"];
    [menu addItem: [[[NSMenuItem alloc] initWithTitle:@"Enter Fullscreen" action:@selector(doToggleFullScreen:) keyEquivalent:@"f"] autorelease]]; // Fullscreen
    [menu addItem: [[[NSMenuItem alloc] initWithTitle:@"Zoom To Fit" action:@selector(zoomToFit:) keyEquivalent:@""] autorelease]];
    menuItem = [[[NSMenuItem alloc] initWithTitle:@"View" action:nil keyEquivalent:@""] autorelease];
    [menuItem setSubmenu:menu];
    [[NSApp mainMenu] addItem:menuItem];

    // Speed menu
    menu = [[NSMenu alloc] initWithTitle:@"Speed"];

    // Add the rest of the Speed menu items
    int p, percentage, throttle_pct;
    for (p = 10; p >= 0; p--)
    {
        percentage = p * 10 > 1 ? p * 10 : 1; // prevent a 0% menu item

        menuItem = [[[NSMenuItem alloc]
                   initWithTitle: [NSString stringWithFormat: @"%d%%", percentage] action:@selector(adjustSpeed:) keyEquivalent:@""] autorelease];

        if (percentage == 100) {
            [menuItem setState: NSControlStateValueOn];
        }

        /* Calculate the throttle percentage */
        throttle_pct = -1 * percentage + 100;

        [menuItem setTag: throttle_pct];
        [menu addItem: menuItem];
    }
    menuItem = [[[NSMenuItem alloc] initWithTitle:@"Speed" action:nil keyEquivalent:@""] autorelease];
    [menuItem setSubmenu:menu];
    [[NSApp mainMenu] addItem:menuItem];

    // Window menu
    menu = [[NSMenu alloc] initWithTitle:@"Window"];
    [menu addItem: [[[NSMenuItem alloc] initWithTitle:@"Minimize" action:@selector(performMiniaturize:) keyEquivalent:@"m"] autorelease]]; // Miniaturize
    menuItem = [[[NSMenuItem alloc] initWithTitle:@"Window" action:nil keyEquivalent:@""] autorelease];
    [menuItem setSubmenu:menu];
    [[NSApp mainMenu] addItem:menuItem];
    [NSApp setWindowsMenu:menu];

    // Help menu
    menu = [[NSMenu alloc] initWithTitle:@"Help"];
    [menu addItem: [[[NSMenuItem alloc] initWithTitle:@"QEMU Documentation" action:@selector(showQEMUDoc:) keyEquivalent:@"?"] autorelease]]; // QEMU Help
    menuItem = [[[NSMenuItem alloc] initWithTitle:@"Window" action:nil keyEquivalent:@""] autorelease];
    [menuItem setSubmenu:menu];
    [[NSApp mainMenu] addItem:menuItem];
}

/* Returns a name for a given console */
static NSString * getConsoleName(QemuConsole * console)
{
    g_autofree char *label = qemu_console_get_label(console);

    return [NSString stringWithUTF8String:label];
}

/* Add an entry to the View menu for each console */
static void add_console_menu_entries(void)
{
    NSMenu *menu;
    NSMenuItem *menuItem;
    int index = 0;

    menu = [[[NSApp mainMenu] itemWithTitle:@"View"] submenu];

    [menu addItem:[NSMenuItem separatorItem]];

    while (qemu_console_lookup_by_index(index) != NULL) {
        menuItem = [[[NSMenuItem alloc] initWithTitle: getConsoleName(qemu_console_lookup_by_index(index))
                                               action: @selector(displayConsole:) keyEquivalent: @""] autorelease];
        [menuItem setTag: index];
        [menu addItem: menuItem];
        index++;
    }
}

/* Make menu items for all removable devices.
 * Each device is given an 'Eject' and 'Change' menu item.
 */
static void addRemovableDevicesMenuItems(void)
{
    NSMenu *menu;
    NSMenuItem *menuItem;
    BlockInfoList *currentDevice, *pointerToFree;
    NSString *deviceName;

    currentDevice = qmp_query_block(NULL);
    pointerToFree = currentDevice;

    menu = [[[NSApp mainMenu] itemWithTitle:@"Machine"] submenu];

    // Add a separator between related groups of menu items
    [menu addItem:[NSMenuItem separatorItem]];

    // Set the attributes to the "Removable Media" menu item
    NSString *titleString = @"Removable Media";
    NSMutableAttributedString *attString=[[NSMutableAttributedString alloc] initWithString:titleString];
    NSColor *newColor = [NSColor blackColor];
    NSFontManager *fontManager = [NSFontManager sharedFontManager];
    NSFont *font = [fontManager fontWithFamily:@"Helvetica"
                                          traits:NSBoldFontMask|NSItalicFontMask
                                          weight:0
                                            size:14];
    [attString addAttribute:NSFontAttributeName value:font range:NSMakeRange(0, [titleString length])];
    [attString addAttribute:NSForegroundColorAttributeName value:newColor range:NSMakeRange(0, [titleString length])];
    [attString addAttribute:NSUnderlineStyleAttributeName value:[NSNumber numberWithInt: 1] range:NSMakeRange(0, [titleString length])];

    // Add the "Removable Media" menu item
    menuItem = [NSMenuItem new];
    [menuItem setAttributedTitle: attString];
    [menuItem setEnabled: NO];
    [menu addItem: menuItem];

    /* Loop through all the block devices in the emulator */
    while (currentDevice) {
        deviceName = [[NSString stringWithFormat: @"%s", currentDevice->value->device] retain];

        if(currentDevice->value->removable) {
            menuItem = [[NSMenuItem alloc] initWithTitle: [NSString stringWithFormat: @"Change %s...", currentDevice->value->device]
                                                  action: @selector(changeDeviceMedia:)
                                           keyEquivalent: @""];
            [menu addItem: menuItem];
            [menuItem setRepresentedObject: deviceName];
            [menuItem autorelease];

            menuItem = [[NSMenuItem alloc] initWithTitle: [NSString stringWithFormat: @"Eject %s", currentDevice->value->device]
                                                  action: @selector(ejectDeviceMedia:)
                                           keyEquivalent: @""];
            [menu addItem: menuItem];
            [menuItem setRepresentedObject: deviceName];
            [menuItem autorelease];
        }
        currentDevice = currentDevice->next;
    }
    qapi_free_BlockInfoList(pointerToFree);
}

@interface QemuCocoaPasteboardTypeOwner : NSObject<NSPasteboardTypeOwner>
@end

@implementation QemuCocoaPasteboardTypeOwner

- (void)pasteboard:(NSPasteboard *)sender provideDataForType:(NSPasteboardType)type
{
    if (type != NSPasteboardTypeString) {
        return;
    }

    with_iothread_lock(^{
        QemuClipboardInfo *info = qemu_clipboard_info_ref(cbinfo);
        qemu_event_reset(&cbevent);
        qemu_clipboard_request(info, QEMU_CLIPBOARD_TYPE_TEXT);

        while (info == cbinfo &&
               info->types[QEMU_CLIPBOARD_TYPE_TEXT].available &&
               info->types[QEMU_CLIPBOARD_TYPE_TEXT].data == NULL) {
            qemu_mutex_unlock_iothread();
            qemu_event_wait(&cbevent);
            qemu_mutex_lock_iothread();
        }

        if (info == cbinfo) {
            NSData *data = [[NSData alloc] initWithBytes:info->types[QEMU_CLIPBOARD_TYPE_TEXT].data
                                           length:info->types[QEMU_CLIPBOARD_TYPE_TEXT].size];
            [sender setData:data forType:NSPasteboardTypeString];
            [data release];
        }

        qemu_clipboard_info_unref(info);
    });
}

@end

static QemuCocoaPasteboardTypeOwner *cbowner;

static void cocoa_clipboard_notify(Notifier *notifier, void *data);
static void cocoa_clipboard_request(QemuClipboardInfo *info,
                                    QemuClipboardType type);

static QemuClipboardPeer cbpeer = {
    .name = "cocoa",
    .notifier = { .notify = cocoa_clipboard_notify },
    .request = cocoa_clipboard_request
};

static void cocoa_clipboard_update_info(QemuClipboardInfo *info)
{
    if (info->owner == &cbpeer || info->selection != QEMU_CLIPBOARD_SELECTION_CLIPBOARD) {
        return;
    }

    if (info != cbinfo) {
        NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];
        qemu_clipboard_info_unref(cbinfo);
        cbinfo = qemu_clipboard_info_ref(info);
        cbchangecount = [[NSPasteboard generalPasteboard] declareTypes:@[NSPasteboardTypeString] owner:cbowner];
        [pool release];
    }

    qemu_event_set(&cbevent);
}

static void cocoa_clipboard_notify(Notifier *notifier, void *data)
{
    QemuClipboardNotify *notify = data;

    switch (notify->type) {
    case QEMU_CLIPBOARD_UPDATE_INFO:
        cocoa_clipboard_update_info(notify->info);
        return;
    case QEMU_CLIPBOARD_RESET_SERIAL:
        /* ignore */
        return;
    }
}

static void cocoa_clipboard_request(QemuClipboardInfo *info,
                                    QemuClipboardType type)
{
    NSData *text;

    switch (type) {
    case QEMU_CLIPBOARD_TYPE_TEXT:
        text = [[NSPasteboard generalPasteboard] dataForType:NSPasteboardTypeString];
        if (text) {
            qemu_clipboard_set_data(&cbpeer, info, type,
                                    [text length], [text bytes], true);
            [text release];
        }
        break;
    default:
        break;
    }
}

/*
 * The startup process for the OSX/Cocoa UI is complicated, because
 * OSX insists that the UI runs on the initial main thread, and so we
 * need to start a second thread which runs the vl.c qemu_main():
 *
 * Initial thread:                    2nd thread:
 * in main():
 *  create qemu-main thread
 *  wait on display_init semaphore
 *                                    call qemu_main()
 *                                    ...
 *                                    in cocoa_display_init():
 *                                     post the display_init semaphore
 *                                     wait on app_started semaphore
 *  create application, menus, etc
 *  enter OSX run loop
 * in applicationDidFinishLaunching:
 *  post app_started semaphore
 *                                     tell main thread to fullscreen if needed
 *                                    [...]
 *                                    run qemu main-loop
 *
 * We do this in two stages so that we don't do the creation of the
 * GUI application menus and so on for command line options like --help
 * where we want to just print text to stdout and exit immediately.
 */

static void *call_qemu_main(void *opaque)
{
    int status;

    COCOA_DEBUG("Second thread: calling qemu_main()\n");
    status = qemu_main(gArgc, gArgv, *_NSGetEnviron());
    COCOA_DEBUG("Second thread: qemu_main() returned, exiting\n");
    [cbowner release];
    exit(status);
}

int main (int argc, char **argv) {
    QemuThread thread;

    COCOA_DEBUG("Entered main()\n");
    gArgc = argc;
    gArgv = argv;

    qemu_sem_init(&display_init_sem, 0);
    qemu_sem_init(&app_started_sem, 0);

    qemu_thread_create(&thread, "qemu_main", call_qemu_main,
                       NULL, QEMU_THREAD_DETACHED);

    COCOA_DEBUG("Main thread: waiting for display_init_sem\n");
    qemu_sem_wait(&display_init_sem);
    COCOA_DEBUG("Main thread: initializing app\n");

    NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];

    // Pull this console process up to being a fully-fledged graphical
    // app with a menubar and Dock icon
    ProcessSerialNumber psn = { 0, kCurrentProcess };
    TransformProcessType(&psn, kProcessTransformToForegroundApplication);

    [QemuApplication sharedApplication];

    create_initial_menus();

    /*
     * Create the menu entries which depend on QEMU state (for consoles
     * and removeable devices). These make calls back into QEMU functions,
     * which is OK because at this point we know that the second thread
     * holds the iothread lock and is synchronously waiting for us to
     * finish.
     */
    add_console_menu_entries();
    addRemovableDevicesMenuItems();

    // Create an Application controller
    QemuCocoaAppController *appController = [[QemuCocoaAppController alloc] init];
    [NSApp setDelegate:appController];

    // Start the main event loop
    COCOA_DEBUG("Main thread: entering OSX run loop\n");
    [NSApp run];
    COCOA_DEBUG("Main thread: left OSX run loop, exiting\n");

    [appController release];
    [pool release];

    return 0;
}



#pragma mark qemu
static void cocoa_update(DisplayChangeListener *dcl,
                         int x, int y, int w, int h)
{
    COCOA_DEBUG("qemu_cocoa: cocoa_update\n");

    dispatch_async(dispatch_get_main_queue(), ^{
        NSRect rect;
        if ([cocoaView cdx] == 1.0) {
            rect = NSMakeRect(x, [cocoaView gscreen].height - y - h, w, h);
        } else {
            rect = NSMakeRect(
                x * [cocoaView cdx],
                ([cocoaView gscreen].height - y - h) * [cocoaView cdy],
                w * [cocoaView cdx],
                h * [cocoaView cdy]);
        }
        [cocoaView setNeedsDisplayInRect:rect];
    });
}

static void cocoa_switch(DisplayChangeListener *dcl,
                         DisplaySurface *surface)
{
    pixman_image_t *image = surface->image;

    COCOA_DEBUG("qemu_cocoa: cocoa_switch\n");

    // The DisplaySurface will be freed as soon as this callback returns.
    // We take a reference to the underlying pixman image here so it does
    // not disappear from under our feet; the switchSurface method will
    // deref the old image when it is done with it.
    pixman_image_ref(image);

    dispatch_async(dispatch_get_main_queue(), ^{
        [cocoaView updateUIInfo];
        [cocoaView switchSurface:image];
    });
}

static void cocoa_refresh(DisplayChangeListener *dcl)
{
    NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];

    COCOA_DEBUG("qemu_cocoa: cocoa_refresh\n");
    graphic_hw_update(NULL);

    if (qemu_input_is_absolute()) {
        dispatch_async(dispatch_get_main_queue(), ^{
            if (![cocoaView isAbsoluteEnabled]) {
                if ([cocoaView isMouseGrabbed]) {
                    [cocoaView ungrabMouse];
                }
            }
            [cocoaView setAbsoluteEnabled:YES];
        });
    }

    if (cbchangecount != [[NSPasteboard generalPasteboard] changeCount]) {
        qemu_clipboard_info_unref(cbinfo);
        cbinfo = qemu_clipboard_info_new(&cbpeer, QEMU_CLIPBOARD_SELECTION_CLIPBOARD);
        if ([[NSPasteboard generalPasteboard] availableTypeFromArray:@[NSPasteboardTypeString]]) {
            cbinfo->types[QEMU_CLIPBOARD_TYPE_TEXT].available = true;
        }
        qemu_clipboard_update(cbinfo);
        cbchangecount = [[NSPasteboard generalPasteboard] changeCount];
        qemu_event_set(&cbevent);
    }

    [pool release];
}

static void cocoa_display_init(DisplayState *ds, DisplayOptions *opts)
{
    COCOA_DEBUG("qemu_cocoa: cocoa_display_init\n");

    /* Tell main thread to go ahead and create the app and enter the run loop */
    qemu_sem_post(&display_init_sem);
    qemu_sem_wait(&app_started_sem);
    COCOA_DEBUG("cocoa_display_init: app start completed\n");

    QemuCocoaAppController *controller = (QemuCocoaAppController *)[[NSApplication sharedApplication] delegate];
    /* if fullscreen mode is to be used */
    if (opts->has_full_screen && opts->full_screen) {
        dispatch_async(dispatch_get_main_queue(), ^{
            [NSApp activateIgnoringOtherApps: YES];
            [controller toggleFullScreen: nil];
        });
    }
    if (opts->u.cocoa.has_full_grab && opts->u.cocoa.full_grab) {
        dispatch_async(dispatch_get_main_queue(), ^{
            [controller setFullGrab: nil];
        });
    }

    if (opts->has_show_cursor && opts->show_cursor) {
        cursor_hide = 0;
    }
    if (opts->u.cocoa.has_swap_opt_cmd) {
        swap_opt_cmd = opts->u.cocoa.swap_opt_cmd;
    }

    if (opts->u.cocoa.has_left_command_key && !opts->u.cocoa.left_command_key) {
        left_command_key_enabled = 0;
    }

    // register vga output callbacks
    register_displaychangelistener(&dcl);

    qemu_event_init(&cbevent, false);
    cbowner = [[QemuCocoaPasteboardTypeOwner alloc] init];
    qemu_clipboard_peer_register(&cbpeer);
}

static QemuDisplay qemu_display_cocoa = {
    .type       = DISPLAY_TYPE_COCOA,
    .init       = cocoa_display_init,
};

static void register_cocoa(void)
{
    qemu_display_register(&qemu_display_cocoa);
}

type_init(register_cocoa);