/
LuminaX11.cpp
2254 lines (2042 loc) · 91.7 KB
/
LuminaX11.cpp
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
//===========================================
// Lumina-DE source code
// Copyright (c) 2014-2016, Ken Moore
// Available under the 3-clause BSD license
// See the LICENSE file for full details
//===========================================
#include "LuminaX11.h"
#include <QString>
#include <QByteArray>
#include <QFile>
#include <QObject>
#include <QImage>
#include <QApplication>
#include <QDesktopWidget>
#include <QScreen>
//XCB Library includes
#include <xcb/xcb.h>
#include <xcb/xcb_atom.h>
#include <xcb/xproto.h>
#include <xcb/xcb_ewmh.h>
#include <xcb/xcb_icccm.h>
#include <xcb/xcb_image.h>
#include <xcb/xcb_aux.h>
#include <xcb/composite.h>
#include <xcb/damage.h>
#include <xcb/dpms.h>
//XLib includes
#include <X11/extensions/Xdamage.h>
#include <X11/Xproto.h>
#define DEBUG 0
//===============================
//===============================
// XCB LIBRARY FUNCTIONS
//===============================
//===============================
LXCB::LXCB(){
xcb_intern_atom_cookie_t *cookie = xcb_ewmh_init_atoms(QX11Info::connection(), &EWMH);
if(!xcb_ewmh_init_atoms_replies(&EWMH, cookie, NULL) ){
qDebug() << "Error with XCB atom initializations";
}else{
qDebug() << "Number of XCB screens:" << EWMH.nb_screens;
}
}
LXCB::~LXCB(){
xcb_ewmh_connection_wipe(&EWMH);
}
// private function
void LXCB::createWMAtoms(){
ATOMS.clear();
atoms.clear();
//List the atoms needed by some WM functions
atoms << "WM_TAKE_FOCUS" << "WM_DELETE_WINDOW" << "WM_PROTOCOLS" << "WM_CHANGE_STATE"; //WM_PROTOCOLS
//Create all the requests for the atoms
QList<xcb_intern_atom_reply_t*> reply;
for(int i=0; i<atoms.length(); i++){
reply << xcb_intern_atom_reply(QX11Info::connection(), \
xcb_intern_atom(QX11Info::connection(), 0, atoms[i].length(), atoms[i].toLocal8Bit()), NULL);
}
//Now evaluate all the requests and save the atoms
for(int i=0; i<reply.length(); i++){
if(reply[i]!=0){
ATOMS << reply[i]->atom;
free(reply[i]); //done with this reply
}else{
//Invalid atom - could not be created
atoms.removeAt(i);
reply.removeAt(i);
i--;
}
}
}
// === WindowList() ===
QList<WId> LXCB::WindowList(bool rawlist){
if(DEBUG){ qDebug() << "XCB: WindowList()" << rawlist; }
QList<WId> output;
//qDebug() << "Get Client list cookie";
xcb_get_property_cookie_t cookie = xcb_ewmh_get_client_list_unchecked( &EWMH, 0);
xcb_ewmh_get_windows_reply_t winlist;
//qDebug() << "Get client list";
if( 1 == xcb_ewmh_get_client_list_reply( &EWMH, cookie, &winlist, NULL) ){
//qDebug() << " - Loop over items";
unsigned int wkspace = CurrentWorkspace();
for(unsigned int i=0; i<winlist.windows_len; i++){
//Filter out the Lumina Desktop windows
if(WindowClass(winlist.windows[i]) == "Lumina Desktop Environment"){ continue; }
//Also filter out windows not on the active workspace
else if( (WindowWorkspace(winlist.windows[i])!=wkspace) && !rawlist ){ continue; }
else{
output << winlist.windows[i];
}
}
}
return output;
}
// === CurrentWorkspace() ===
unsigned int LXCB::CurrentWorkspace(){
if(DEBUG){ qDebug() << "XCB: CurrentWorkspace()"; }
//qDebug() << "Get Current Workspace";
xcb_get_property_cookie_t cookie = xcb_ewmh_get_current_desktop_unchecked(&EWMH, 0);
uint32_t wkspace = 0;
xcb_ewmh_get_current_desktop_reply(&EWMH, cookie, &wkspace, NULL);
//qDebug() << " - done:" << wkspace;
return wkspace;
}
unsigned int LXCB::NumberOfWorkspaces(){
xcb_get_property_cookie_t cookie = xcb_ewmh_get_number_of_desktops_unchecked(&EWMH, 0);
uint32_t number;
if(1==xcb_ewmh_get_number_of_desktops_reply(&EWMH, cookie, &number, NULL) ){
return number;
}else{
return 0; //unable to get this property
}
}
// === ActiveWindow() ===
WId LXCB::ActiveWindow(){
if(DEBUG){ qDebug() << "XCB: ActiveWindow()"; }
xcb_get_property_cookie_t cookie = xcb_ewmh_get_active_window_unchecked(&EWMH, 0);
xcb_window_t actwin;
if(1 == xcb_ewmh_get_active_window_reply(&EWMH, cookie, &actwin, NULL) ){
return actwin;
}else{
return 0; //invalid ID/failure
}
}
// === CheckDisableXinerama() ===
bool LXCB::CheckDisableXinerama(){
//returns true if Xinerama was initially set but now disabled
return false;
// TO-DO - not complete yet
/*xcb_query_extension_cookie_t cookie = xcb_query_extension_unchecked(QX11Info::connection(), 8, "Xinerama");
xcb_query_extension_reply_t *reply = xcb_query_extension_reply(QX11Info::connection(), cookie, NULL);
if(reply!=0){
free(reply);
}
*/
}
// === RegisterVirtualRoots() ===
void LXCB::RegisterVirtualRoots(QList<WId> roots){
if(DEBUG){ qDebug() << "XCB: RegisterVirtualRoots()"; }
//First convert the QList into the proper format
xcb_window_t *list = new xcb_window_t[ roots.length() ];
for(int i=0; i<roots.length(); i++){
list[i] = roots[i]; //move from the QList to the array
}
//Now set the property
xcb_ewmh_set_virtual_roots(&EWMH, 0, roots.length(), list);
//Now delete the temporary array from memory
delete [] list;
}
// ===== SetCurrentWorkspace() =====
void LXCB::SetCurrentWorkspace(int number){
//Need to send a client message event for the window so the WM picks it up
xcb_client_message_event_t event;
event.response_type = XCB_CLIENT_MESSAGE;
event.format = 32;
event.window = QX11Info::appRootWindow();
event.type = EWMH._NET_CURRENT_DESKTOP;
event.data.data32[0] = number; //set to enabled
event.data.data32[1] = XCB_TIME_CURRENT_TIME;
event.data.data32[2] = 0;
event.data.data32[3] = 0;
event.data.data32[4] = 0;
xcb_send_event(QX11Info::connection(), 0, QX11Info::appRootWindow(), XCB_EVENT_MASK_STRUCTURE_NOTIFY | XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT, (const char *) &event);
//EWMH function (does not seem to be recognized by Fluxbox)
xcb_ewmh_request_change_showing_desktop(&EWMH, QX11Info::appScreen(), number);
}
//Display Power Management System (DPMS)
// ===== enableDPMS() =====
void LXCB::enableDPMS(){
XSetScreenSaver( QX11Info::display(), 600, 600, PreferBlanking, DontAllowExposures); //10 minutes - older pre-dpms protocol
xcb_dpms_enable(QX11Info::connection());
}
// ===== disableDPMS() =====
void LXCB::disableDPMS(){
XSetScreenSaver( QX11Info::display(), 0, 0, PreferBlanking, DontAllowExposures); //older pre-dpms protocol
xcb_dpms_disable(QX11Info::connection());
}
// === WindowClass() ===
QString LXCB::WindowClass(WId win){
if(DEBUG){ qDebug() << "XCB: WindowClass()" << win; }
QString out;
if(win==0){ return ""; }
xcb_get_property_cookie_t cookie = xcb_icccm_get_wm_class_unchecked(QX11Info::connection(), win);
if(cookie.sequence == 0){ return out; }
xcb_icccm_get_wm_class_reply_t value;
if( 1== xcb_icccm_get_wm_class_reply( QX11Info::connection(), cookie, &value, NULL) ){
out = QString::fromUtf8(value.class_name);
xcb_icccm_get_wm_class_reply_wipe(&value);
}
return out;
}
// === WindowWorkspace() ===
unsigned int LXCB::WindowWorkspace(WId win){
if(DEBUG){ qDebug() << "XCB: WindowWorkspace()" << win; }
//qDebug() << "Get Window Workspace";
if(win==0){ return 0; }
uint32_t wkspace = 0;
xcb_get_property_cookie_t scookie = xcb_ewmh_get_wm_state_unchecked(&EWMH, win);
xcb_get_property_cookie_t cookie = xcb_ewmh_get_wm_desktop_unchecked(&EWMH, win);
if(cookie.sequence == 0){ return wkspace; }
xcb_ewmh_get_wm_desktop_reply(&EWMH, cookie, &wkspace, NULL);
xcb_ewmh_get_atoms_reply_t reply;
if(1==xcb_ewmh_get_wm_state_reply(&EWMH,scookie, &reply, NULL)){
//Also check if this window is "sticky", in which case return the current workspace (on all of them)
for(unsigned int i=0; i<reply.atoms_len; i++){
if(reply.atoms[i]==EWMH._NET_WM_STATE_STICKY){ wkspace = LXCB::CurrentWorkspace(); break; }
}
}
//qDebug() << " - done: " << wkspace;
return wkspace;
}
// === WindowGeometry() ===
QRect LXCB::WindowGeometry(WId win, bool includeFrame){
if(DEBUG){ qDebug() << "XCB: WindowGeometry()"; }
QRect geom;
if(win==0){ return geom; }
xcb_get_geometry_cookie_t cookie = xcb_get_geometry(QX11Info::connection(), win);
xcb_get_geometry_reply_t *reply = xcb_get_geometry_reply(QX11Info::connection(), cookie, NULL);
//qDebug() << "Get Window Geometry:" << reply;
if(reply != 0){
geom = QRect(0, 0, reply->width, reply->height); //make sure to use the origin point for the window
//qDebug() << " - "<<reply->x << reply->y << reply->width << reply->height;
free(reply);
if(includeFrame){
//Need to add/include the frame extents as well (assuming the frame info is available)
xcb_get_property_cookie_t cookie = xcb_ewmh_get_frame_extents_unchecked(&EWMH, win);
if(cookie.sequence != 0){
xcb_ewmh_get_extents_reply_t frame;
if(1== xcb_ewmh_get_frame_extents_reply(&EWMH, cookie, &frame, NULL) ){
//adjust the origin point to account for the frame
geom.translate(-frame.left, -frame.top); //move to the orign point for the frame
//adjust the size (include the frame sizes)
geom.setWidth( geom.width() + frame.left + frame.right );
geom.setHeight( geom.height() + frame.top + frame.bottom );
}
//qDebug() << " - Frame:" << frame.left << frame.right << frame.top << frame.bottom;
//qDebug() << " - Modified with Frame:" << geom.x() << geom.y() << geom.width() << geom.height();
}
}
//Now need to convert this to absolute coordinates (not parent-relavitve)
xcb_translate_coordinates_cookie_t tcookie = xcb_translate_coordinates(QX11Info::connection(), win, QX11Info::appRootWindow(), geom.x(), geom.y());
xcb_translate_coordinates_reply_t *trans = xcb_translate_coordinates_reply(QX11Info::connection(), tcookie, NULL);
if(trans!=0){
//qDebug() << " - Got Translation:" << trans->dst_x << trans->dst_y;
//Replace the origin point with the global position (sizing remains the same)
geom.moveLeft(trans->dst_x); //adjust X coordinate (no size change)
geom.moveTop(trans->dst_y); //adjust Y coordinate (no size change)
free(trans);
}
}else{
//Need to do another catch for this situation (probably not mapped yet)
}
return geom;
}
// === WindowFrameGeometry() ===
QList<int> LXCB::WindowFrameGeometry(WId win){
if(DEBUG){ qDebug() << "XCB: WindowFrameGeometry()"; }
//Returns: [top, bottom, left, right] sizes for the frame
QList<int> geom;
if(win!=0){
xcb_get_property_cookie_t cookie = xcb_ewmh_get_frame_extents_unchecked(&EWMH, win);
if(cookie.sequence != 0){
xcb_ewmh_get_extents_reply_t frame;
if(1== xcb_ewmh_get_frame_extents_reply(&EWMH, cookie, &frame, NULL) ){
//adjust the origin point to account for the frame
geom << frame.top << frame.bottom << frame.left << frame.right;
}
}
}
if(geom.isEmpty()){ geom << 0 << 0 << 0 << 0; }
return geom;
}
// === WindowState() ===
LXCB::WINDOWVISIBILITY LXCB::WindowState(WId win){
if(DEBUG){ qDebug() << "XCB: WindowState()"; }
if(win==0){ return IGNORE; }
xcb_get_property_cookie_t cookie = xcb_ewmh_get_wm_state_unchecked(&EWMH, win);
if(cookie.sequence == 0){ return IGNORE; }
xcb_ewmh_get_atoms_reply_t states;
WINDOWVISIBILITY cstate = IGNORE;
//First Check for special states (ATTENTION in particular);
if( 1 == xcb_ewmh_get_wm_state_reply(&EWMH, cookie, &states, NULL) ){
for(unsigned int i=0; i<states.atoms_len; i++){
if(states.atoms[i] == EWMH._NET_WM_STATE_DEMANDS_ATTENTION){ cstate = ATTENTION; break; } //nothing more urgent - stop here
else if(states.atoms[i] == EWMH._NET_WM_STATE_HIDDEN){ cstate = INVISIBLE; }
}
}
//Now check to see if the window is the active one
if(cstate == IGNORE){
xcb_get_property_cookie_t cookie = xcb_ewmh_get_active_window_unchecked(&EWMH, 0);
xcb_window_t actwin;
if(1 == xcb_ewmh_get_active_window_reply(&EWMH, cookie, &actwin, NULL) ){
if(actwin == win){ cstate = ACTIVE; }
}
}
//Now check for ICCCM Urgency hint (not sure if this is still valid with EWMH instead)
/*if(cstate == IGNORE){
xcb_get_property_cookie_t cookie = xcb_icccm_get_wm_hints_unchecked(QX11Info::connection(), win);
xcb_icccm_wm_hints_t hints;
if( 1== xcb_icccm_get_wm_hints_reply(QX11Info::connection(), cookie, &hints, NULL) ){
if(xcb_icccm_wm_hints_get_urgency(hints) ){ cstate = ATTENTION; };
}
}*/
//Now check for standard visible/invisible attribute (current mapping state)
if(cstate == IGNORE){
xcb_get_window_attributes_cookie_t cookie = xcb_get_window_attributes(QX11Info::connection(), win);
xcb_get_window_attributes_reply_t *attr = xcb_get_window_attributes_reply(QX11Info::connection(), cookie, NULL);
if(attr!=0){
if(attr->map_state==XCB_MAP_STATE_VIEWABLE){ cstate = VISIBLE; }
else{ cstate = INVISIBLE; }
free(attr);
}
}
return cstate;
}
// === WindowVisibleIconName() ===
QString LXCB::WindowVisibleIconName(WId win){ //_NET_WM_VISIBLE_ICON_NAME
if(DEBUG){ qDebug() << "XCB: WindowVisibleIconName()"; }
if(win==0){ return ""; }
QString out;
xcb_get_property_cookie_t cookie = xcb_ewmh_get_wm_visible_icon_name_unchecked(&EWMH, win);
if(cookie.sequence == 0){ return out; }
xcb_ewmh_get_utf8_strings_reply_t data;
if( 1 == xcb_ewmh_get_wm_visible_icon_name_reply(&EWMH, cookie, &data, NULL) ){
out = QString::fromUtf8(data.strings, data.strings_len);
}
return out;
}
// === WindowIconName() ===
QString LXCB::WindowIconName(WId win){ //_NET_WM_ICON_NAME
if(DEBUG){ qDebug() << "XCB: WindowIconName()"; }
if(win==0){ return ""; }
QString out;
xcb_get_property_cookie_t cookie = xcb_ewmh_get_wm_icon_name_unchecked(&EWMH, win);
if(cookie.sequence == 0){ return out; }
xcb_ewmh_get_utf8_strings_reply_t data;
if( 1 == xcb_ewmh_get_wm_icon_name_reply(&EWMH, cookie, &data, NULL) ){
out = QString::fromUtf8(data.strings, data.strings_len);
}
return out;
}
// === WindowVisibleName() ===
QString LXCB::WindowVisibleName(WId win){ //_NET_WM_VISIBLE_NAME
if(DEBUG){ qDebug() << "XCB: WindowVisibleName()"; }
if(win==0){ return ""; }
QString out;
xcb_get_property_cookie_t cookie = xcb_ewmh_get_wm_visible_name_unchecked(&EWMH, win);
if(cookie.sequence == 0){ return out; }
xcb_ewmh_get_utf8_strings_reply_t data;
if( 1 == xcb_ewmh_get_wm_visible_name_reply(&EWMH, cookie, &data, NULL) ){
out = QString::fromUtf8(data.strings, data.strings_len);
}
return out;
}
// === WindowName() ===
QString LXCB::WindowName(WId win){ //_NET_WM_NAME
if(DEBUG){ qDebug() << "XCB: WindowName()"; }
if(win==0){ return ""; }
QString out;
xcb_get_property_cookie_t cookie = xcb_ewmh_get_wm_name_unchecked(&EWMH, win);
if(cookie.sequence == 0){ return out; }
xcb_ewmh_get_utf8_strings_reply_t data;
if( 1 == xcb_ewmh_get_wm_name_reply(&EWMH, cookie, &data, NULL) ){
out = QString::fromUtf8(data.strings, data.strings_len);
}
return out;
}
// === OldWindowName() ===
QString LXCB::OldWindowName(WId win){ //WM_NAME (old standard)
if(DEBUG){ qDebug() << "XCB: OldWindowName()"; }
if(win==0){ return ""; }
xcb_get_property_cookie_t cookie = xcb_icccm_get_wm_name_unchecked(QX11Info::connection(), win);
xcb_icccm_get_text_property_reply_t reply;
if(1 == xcb_icccm_get_wm_name_reply(QX11Info::connection(), cookie, &reply, NULL) ){
QString name = QString::fromLocal8Bit(reply.name, reply.name_len);
xcb_icccm_get_text_property_reply_wipe(&reply);
return name;
}else{
return "";
}
}
// === OldWindowIconName() ===
QString LXCB::OldWindowIconName(WId win){ //WM_ICON_NAME (old standard)
if(DEBUG){ qDebug() << "XCB: OldWindowIconName()"; }
if(win==0){ return ""; }
xcb_get_property_cookie_t cookie = xcb_icccm_get_wm_icon_name_unchecked(QX11Info::connection(), win);
xcb_icccm_get_text_property_reply_t reply;
if(1 == xcb_icccm_get_wm_icon_name_reply(QX11Info::connection(), cookie, &reply, NULL) ){
QString name = QString::fromLocal8Bit(reply.name, reply.name_len);
xcb_icccm_get_text_property_reply_wipe(&reply);
return name;
}else{
return "";
}
}
// === WindowIsMaximized() ===
bool LXCB::WindowIsMaximized(WId win){
if(DEBUG){ qDebug() << "XCB: WindowIsMaximized()"; }
if(win==0){ return ""; }
//See if the _NET_WM_STATE_MAXIMIZED_[VERT/HORZ] flags are set on the window
xcb_get_property_cookie_t cookie = xcb_ewmh_get_wm_state_unchecked(&EWMH, win);
if(cookie.sequence == 0){ return false; }
xcb_ewmh_get_atoms_reply_t states;
if( 1 == xcb_ewmh_get_wm_state_reply(&EWMH, cookie, &states, NULL) ){
//Loop over the states
for(unsigned int i=0; i<states.atoms_len; i++){
if(states.atoms[i] == EWMH._NET_WM_STATE_MAXIMIZED_HORZ \
|| states.atoms[i] == EWMH._NET_WM_STATE_MAXIMIZED_VERT ){
return true;
}
}
}
return false;
}
// === WindowIsFullscreen() ===
int LXCB::WindowIsFullscreen(WId win){
if(DEBUG){ qDebug() << "XCB: WindowIsFullscreen()"; }
if(win==0){ return -1; }
//bool fullS = false;
//See if the _NET_WM_STATE_FULLSCREEN flag is set on the window
/*xcb_get_property_cookie_t cookie = xcb_ewmh_get_wm_state_unchecked(&EWMH, win);
if(cookie.sequence == 0){ return false; }
xcb_ewmh_get_atoms_reply_t states;
if( 1 == xcb_ewmh_get_wm_state_reply(&EWMH, cookie, &states, NULL) ){
//Loop over the states
for(unsigned int i=0; i<states.atoms_len; i++){
if(states.atoms[i] == EWMH._NET_WM_STATE_FULLSCREEN){
fullS = true;
break;
}
}
}*/
//if(!fullS){
//Fallback check for windows which are painted above everything else
// but don't have the FULLSCREEN flag set (even though they are technically full-screen)
int fscreen = -1;
//qDebug() << "FALLBACK FULLSCREEN CHECK:";
QRect geom = LXCB::WindowGeometry(win, false);
QList<QScreen*> screens = QGuiApplication::screens();
QList<QScreen*>::const_iterator it;
int i = 0;
for(it = screens.constBegin(); it != screens.constEnd(); ++it, ++i) {
QRect sgeom = (*it)->availableGeometry();
//qDebug() << " -- Check Window Geom:" << sgeom << geom << this->WindowClass(win);
if( sgeom.contains(geom.center()) ){
//Allow a 1 pixel variation in "full-screen" detection
//qDebug() << " -- Found Screen:" << i;
if( geom.width() >= (sgeom.width()-1) && geom.height()>=(sgeom.height()-1) ){
//qDebug() << " -- Is Fullscreen!";
//fullS = true;
fscreen = i;
}
break; //found the screen which contains this window
}
}
//}
//return fullS;
return fscreen;
}
// === WindowIcon() ===
QIcon LXCB::WindowIcon(WId win){
//Fetch the _NET_WM_ICON for the window and return it as a QIcon
if(DEBUG){ qDebug() << "XCB: WindowIcon()"; }
QIcon icon;
if(win==0){ return icon; }
xcb_get_property_cookie_t cookie = xcb_ewmh_get_wm_icon_unchecked(&EWMH, win);
xcb_ewmh_get_wm_icon_reply_t reply;
if(1 == xcb_ewmh_get_wm_icon_reply(&EWMH, cookie, &reply, NULL)){
xcb_ewmh_wm_icon_iterator_t iter = xcb_ewmh_get_wm_icon_iterator(&reply);
//Just use the first
bool done =false;
while(!done){
//Now convert the current data into a Qt image
// - first 2 elements are width and height (removed via XCB functions)
// - data in rows from left to right and top to bottom
QImage image(iter.width, iter.height, QImage::Format_ARGB32); //initial setup
uint* dat = iter.data;
//dat+=2; //remember the first 2 element offset
for(qsizetype i=0; i<image.sizeInBytes()/4; ++i, ++dat){
((uint*)image.bits())[i] = *dat;
}
icon.addPixmap(QPixmap::fromImage(image)); //layer this pixmap onto the icon
//Now see if there are any more icons available
done = (iter.rem<1); //number of icons remaining
if(!done){ xcb_ewmh_get_wm_icon_next(&iter); } //get the next icon data
}
xcb_ewmh_get_wm_icon_reply_wipe(&reply);
}
return icon;
}
// === SelectInput() ===
void LXCB::SelectInput(WId win, bool isEmbed){
uint32_t mask;
if(isEmbed){
mask = XCB_EVENT_MASK_ENTER_WINDOW | XCB_EVENT_MASK_LEAVE_WINDOW | XCB_EVENT_MASK_STRUCTURE_NOTIFY | XCB_EVENT_MASK_SUBSTRUCTURE_NOTIFY | XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT | XCB_EVENT_MASK_FOCUS_CHANGE | XCB_EVENT_MASK_PROPERTY_CHANGE;
}else{
mask = XCB_EVENT_MASK_FOCUS_CHANGE | XCB_EVENT_MASK_PROPERTY_CHANGE;
}
xcb_change_window_attributes(QX11Info::connection(), win, XCB_CW_EVENT_MASK, &mask );
}
// === GenerateDamageID() ===
uint LXCB::GenerateDamageID(WId win){
//Now create/register the damage handler
xcb_damage_damage_t dmgID = xcb_generate_id(QX11Info::connection()); //This is a typedef for a 32-bit unsigned integer
xcb_damage_create(QX11Info::connection(), dmgID, win, XCB_DAMAGE_REPORT_LEVEL_RAW_RECTANGLES);
return ( (uint) dmgID );
}
// === paintRoot() ===
void LXCB::paintRoot(QRect area, const QPixmap *pix){
//Generate a graphics context for this paint
xcb_gcontext_t gc = xcb_generate_id(QX11Info::connection());
xcb_screen_t *screen = xcb_setup_roots_iterator(xcb_get_setup(QX11Info::connection())).data;
uint32_t values[1];
values[0] = screen->black_pixel;
xcb_create_gc(QX11Info::connection(),
gc,
screen->root,
XCB_GC_BACKGROUND,
values );
//Convert the QPixmap to a xcb_drawable_t
QImage qimage = pix->toImage().convertToFormat(QImage::Format_ARGB32);
xcb_image_t *image = xcb_image_create(pix->width(), pix->height(), XCB_IMAGE_FORMAT_XY_PIXMAP,
32, qimage.depth(), 32, 32, XCB_IMAGE_ORDER_LSB_FIRST, XCB_IMAGE_ORDER_LSB_FIRST,
0, qimage.sizeInBytes(), qimage.bits());
//Now paint on the root window
xcb_image_put(QX11Info::connection(),
screen->root, //where to put it
gc,
image,
area.x(),
area.y(),
0);
/*xcb_copy_area(QX11Info::connection(),
//static_cast<xcb_drawable_t>( pix.handle() ) , //image to copy
*image,
screen->root, //where to put it
gc, //graphics context for destination
0, //x origin of picture
0, // y origin of picture
area.x(), //x origin of where to place it
area.y(), //y origin of where to place it
area.width(),
area.height() );*/
//Apply the change right now
xcb_flush(QX11Info::connection());
xcb_image_destroy(image);
}
// === SetAsSticky() ===
void LXCB::SetAsSticky(WId win){
if(DEBUG){ qDebug() << "XCB: SetAsSticky()"; }
if(win==0){ return; }
//Need to send a client message event for the window so the WM picks it up
xcb_client_message_event_t event;
event.response_type = XCB_CLIENT_MESSAGE;
event.format = 32;
event.window = win;
event.type = EWMH._NET_WM_STATE;
event.data.data32[0] = 1; //set to enabled
event.data.data32[1] = EWMH._NET_WM_STATE_STICKY;
event.data.data32[2] = 0;
event.data.data32[3] = 0;
event.data.data32[4] = 0;
xcb_send_event(QX11Info::connection(), 0, QX11Info::appRootWindow(), XCB_EVENT_MASK_STRUCTURE_NOTIFY | XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT, (const char *) &event);
//This method changes the property on the window directly - the WM is not aware of it
/*xcb_change_property( QX11Info::connection(), XCB_PROP_MODE_APPEND, win, EWMH._NET_WM_STATE, XCB_ATOM_ATOM, 32, 1, &(EWMH._NET_WM_STATE_STICKY) );
xcb_flush(QX11Info::connection()); //apply it right away*/
}
// === SetDisableWMActions() ===
void LXCB::SetDisableWMActions(WId win){
if(DEBUG){ qDebug() << "XCB: SetDisableWMActions()"; }
//This disables all the various control that a WM allows for the window (except for allowing the "Sticky" state)
xcb_atom_t list[1];
list[0] = EWMH._NET_WM_ACTION_STICK;
xcb_ewmh_set_wm_allowed_actions(&EWMH, win, 1, list);
}
// === SetAsPanel() ===
void LXCB::SetAsPanel(WId win){
if(DEBUG){ qDebug() << "XCB: SetAsPanel()"; }
if(win==0){ return; }
SetDisableWMActions(win); //also need to disable WM actions for this window
//Disable Input focus (panel activation ruins task manager window detection routines)
// - Disable Input flag in WM_HINTS
xcb_icccm_wm_hints_t hints;
//qDebug() << " - Disable WM_HINTS input flag";
xcb_get_property_cookie_t cookie = xcb_icccm_get_wm_hints_unchecked(QX11Info::connection(), win);
//qDebug() << " -- got cookie";
if(1 == xcb_icccm_get_wm_hints_reply(QX11Info::connection(), cookie, &hints, NULL) ){
//qDebug() << " -- Set no inputs flag";
xcb_icccm_wm_hints_set_input(&hints, false); //set no input focus
xcb_icccm_set_wm_hints(QX11Info::connection(), win, &hints); //save hints back to window
}
// - Remove WM_TAKE_FOCUS from the WM_PROTOCOLS for the window
// - - Generate the necessary atoms
//qDebug() << " - Generate WM_PROTOCOLS and WM_TAKE_FOCUS atoms";
xcb_atom_t WM_PROTOCOLS, WM_TAKE_FOCUS; //the two atoms needed
xcb_intern_atom_reply_t *preply = xcb_intern_atom_reply(QX11Info::connection(), \
xcb_intern_atom(QX11Info::connection(), 0, 12, "WM_PROTOCOLS"), NULL);
xcb_intern_atom_reply_t *freply = xcb_intern_atom_reply(QX11Info::connection(), \
xcb_intern_atom(QX11Info::connection(), 0, 13, "WM_TAKE_FOCUS"), NULL);
bool gotatoms = false;
if(preply && freply){
WM_PROTOCOLS = preply->atom;
WM_TAKE_FOCUS = freply->atom;
free(preply);
free(freply);
gotatoms = true;
//qDebug() << " -- success";
}
// - - Now update the protocols for the window
if(gotatoms){ //requires the atoms
//qDebug() << " - Get WM_PROTOCOLS";
xcb_icccm_get_wm_protocols_reply_t proto;
if( 1 == xcb_icccm_get_wm_protocols_reply(QX11Info::connection(), \
xcb_icccm_get_wm_protocols_unchecked(QX11Info::connection(), win, WM_PROTOCOLS), \
&proto, NULL) ){
//Found the current protocols, see if it has the focus atom set
//remove the take focus atom and re-save them
bool needremove = false;
//Note: This first loop is required so that we can initialize the modified list with a valid size
//qDebug() << " -- Check current protocols";
for(unsigned int i=0; i<proto.atoms_len; i++){
if(proto.atoms[i] == WM_TAKE_FOCUS){ needremove = true; break;}
}
if(needremove){
//qDebug() << " -- Remove WM_TAKE_FOCUS protocol";
xcb_atom_t *protolist = new xcb_atom_t[proto.atoms_len-1];
int num = 0;
for(unsigned int i=0; i<proto.atoms_len; i++){
if(proto.atoms[i] != WM_TAKE_FOCUS){
protolist[num] = proto.atoms[i];
num++;
}
}
//qDebug() << " -- Re-save modified protocols";
xcb_icccm_set_wm_protocols(QX11Info::connection(), win, WM_PROTOCOLS, num, protolist);
}
//qDebug() << " -- Clear protocols reply";
xcb_icccm_get_wm_protocols_reply_wipe(&proto);
}//end of get protocols check
} //end of gotatoms check
//Make sure it has the "dock" window type
// - get the current window types (Not necessary, only 1 type of window needed)
// - set the adjusted window type(s)
//qDebug() << " - Adjust window type";
xcb_atom_t list[1];
list[0] = EWMH._NET_WM_WINDOW_TYPE_DOCK;
xcb_ewmh_set_wm_window_type(&EWMH, win, 1, list);
//Make sure it is on all workspaces
//qDebug() << " - Set window as sticky";
SetAsSticky(win);
}
// === SetAsDesktop() ===
void LXCB::SetAsDesktop(WId win){
if(DEBUG){ qDebug() << "XCB: SetAsDesktop()"; }
if(win==0){ return; }
SetDisableWMActions(win); //also need to disable WM actions for this window
xcb_atom_t list[1];
list[0] = EWMH._NET_WM_WINDOW_TYPE_DESKTOP;
xcb_ewmh_set_wm_window_type(&EWMH, win, 1, list);
}
// === CloseWindow() ===
void LXCB::CloseWindow(WId win){
if(DEBUG){ qDebug() << "XCB: CloseWindow()"; }
if(win==0){ return; }
//This will close the specified window (might not close the entire application)
xcb_ewmh_request_close_window(&EWMH, 0, win, QX11Info::getTimestamp(), XCB_EWMH_CLIENT_SOURCE_TYPE_OTHER);
}
// === KillClient() ===
void LXCB::KillClient(WId win){
if(DEBUG){ qDebug() << "XCB: KillClient()"; }
if(win==0){ return; }
//This will forcibly close the application which created WIN
xcb_kill_client(QX11Info::connection(), win);
}
// === MinimizeWindow() ===
void LXCB::MinimizeWindow(WId win){ //request that the window be unmapped/minimized
if(DEBUG){ qDebug() << "XCB: MinimizeWindow()"; }
if(win==0){ return; }
if(atoms.isEmpty()){ createWMAtoms(); } //need these atoms
//Note: Fluxbox completely removes this window from the open list if unmapped manually
// xcb_unmap_window(QX11Info::connection(), win);
//xcb_flush(QX11Info::connection()); //make sure the command is sent out right away
//Need to send a client message event for the window so the WM picks it up
xcb_client_message_event_t event;
memset(&event, 0, sizeof(event));
event.response_type = XCB_CLIENT_MESSAGE;
event.format = 32;
event.window = win;
event.type = ATOMS[atoms.indexOf("WM_CHANGE_STATE")];
event.data.data32[0] = XCB_ICCCM_WM_STATE_ICONIC;
xcb_send_event(QX11Info::connection(), 0, QX11Info::appRootWindow(), XCB_EVENT_MASK_SUBSTRUCTURE_NOTIFY | XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT, (const char *) &event);
}
// === ActivateWindow() ===
void LXCB::ActivateWindow(WId win){ //request that the window become active
if(DEBUG){ qDebug() << "XCB: ActivateWindow();"; }
if(win==0){ return; }
//First need to get the currently active window
xcb_get_property_cookie_t cookie = xcb_ewmh_get_active_window_unchecked(&EWMH, 0);
xcb_window_t actwin;
if(1 != xcb_ewmh_get_active_window_reply(&EWMH, cookie, &actwin, NULL) ){
actwin = 0;
}
if(actwin == win){ return; } //requested window is already active
//Need to send a client message event for the window so the WM picks it up
xcb_client_message_event_t event;
event.response_type = XCB_CLIENT_MESSAGE;
event.format = 32;
event.window = win; //window to activate
event.type = EWMH._NET_ACTIVE_WINDOW;
event.data.data32[0] = 2; //pager/direct user interaction
event.data.data32[1] = QX11Info::getTimestamp(); //current timestamp
event.data.data32[2] = actwin; //currently active window (0 if none)
event.data.data32[3] = 0;
event.data.data32[4] = 0;
xcb_send_event(QX11Info::connection(), 0, QX11Info::appRootWindow(), XCB_EVENT_MASK_STRUCTURE_NOTIFY | XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT, (const char *) &event);
}
// ===== RestoreWindow() =====
void LXCB::RestoreWindow(WId win){
uint32_t val = XCB_STACK_MODE_ABOVE;
xcb_configure_window(QX11Info::connection(), win, XCB_CONFIG_WINDOW_STACK_MODE, &val); //raise it
xcb_map_window(QX11Info::connection(), win); //map it
}
// === MaximizeWindow() ===
void LXCB::MaximizeWindow(WId win, bool flagsonly){ //request that the window become maximized
if(DEBUG){ qDebug() << "XCB: MaximizeWindow()"; }
if(win==0){ return; }
if(flagsonly){
//Directly set the flags on the window (bypassing the WM)
xcb_atom_t list[2];
list[0] = EWMH._NET_WM_STATE_MAXIMIZED_VERT;
list[1] = EWMH._NET_WM_STATE_MAXIMIZED_HORZ;
xcb_ewmh_set_wm_state(&EWMH, win, 2, list);
}else{
//Need to send a client message event for the window so the WM picks it up
xcb_client_message_event_t event;
event.response_type = XCB_CLIENT_MESSAGE;
event.format = 32;
event.window = win;
event.type = EWMH._NET_WM_STATE;
event.data.data32[0] = 2; //set to toggle (switch back and forth)
event.data.data32[1] = EWMH._NET_WM_STATE_MAXIMIZED_VERT;
event.data.data32[2] = EWMH._NET_WM_STATE_MAXIMIZED_HORZ;
event.data.data32[3] = 0;
event.data.data32[4] = 0;
xcb_send_event(QX11Info::connection(), 0, QX11Info::appRootWindow(), XCB_EVENT_MASK_STRUCTURE_NOTIFY | XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT, (const char *) &event);
}
}
// === MoveResizeWindow() ===
void LXCB::MoveResizeWindow(WId win, QRect geom){
if(DEBUG){ qDebug() << "XCB: MoveResizeWindow()"; }
if(win==0){ return; }
//NOTE: geom needs to be in root/absolute coordinates!
//qDebug() << "MoveResize Window:" << geom.x() << geom.y() << geom.width() << geom.height();
//Move the window
/*xcb_ewmh_request_moveresize_window(&EWMH, 0, win, XCB_GRAVITY_STATIC, XCB_EWMH_CLIENT_SOURCE_TYPE_OTHER, \
XCB_EWMH_MOVERESIZE_WINDOW_X | XCB_EWMH_MOVERESIZE_WINDOW_Y | XCB_MOVERESIZE_WINDOW_WIDTH | XCB_MOVERESIZE_WINDOW_HEIGHT, \
geom.x(), geom.y(), geom.width(), geom.height());*/
//Use the basic XCB functions instead of ewmh (Issues with combining the XCB_EWMH_MOVERESIZE _*flags)
uint32_t values[4];
values[0] = geom.x(); values[1] = geom.y();
values[2] = geom.width(); values[3] = geom.height();
xcb_configure_window(QX11Info::connection(), win, XCB_CONFIG_WINDOW_X | XCB_CONFIG_WINDOW_Y | XCB_CONFIG_WINDOW_WIDTH | XCB_CONFIG_WINDOW_HEIGHT, values);
}
// ===== ResizeWindow() =====
void LXCB::ResizeWindow(WId win, int width, int height){
//Use the basic XCB functions instead of ewmh
uint32_t values[] = { static_cast<unsigned int>(width), static_cast<unsigned int>(height) };
xcb_configure_window(QX11Info::connection(), win, XCB_CONFIG_WINDOW_WIDTH | XCB_CONFIG_WINDOW_HEIGHT, values);
}
// === ReserveLocation ===
void LXCB::ReserveLocation(WId win, QRect geom, QString loc){
loc = loc.toLower().simplified();
//Put the values in the proper structures
xcb_ewmh_wm_strut_partial_t LOC;
//Initialize the structure to zeros
LOC.left = LOC.right = LOC.top = LOC.bottom = 0; //initial setting
LOC.left_start_y = LOC.left_end_y = LOC.right_start_y = LOC.right_end_y = 0;
LOC.top_start_x = LOC.top_end_x = LOC.bottom_start_x = LOC.bottom_end_x = 0;
//Now put the values into the structure based on location
if(loc=="top"){
//top of screen
LOC.top = geom.height(); //top width
LOC.top_start_x = geom.x(); //top x start
LOC.top_end_x = geom.x()+geom.width(); //top x end
}else if(loc=="bottom"){
//bottom of screen
LOC.bottom = geom.height(); //bottom width
LOC.bottom_start_x = geom.x(); //bottom x start
LOC.bottom_end_x = geom.x()+geom.width(); //bottom x end
}else if(loc=="left"){
LOC.left = geom.width();
LOC.left_start_y = geom.y();
LOC.left_end_y = geom.y()+geom.height();
}else{ //right
LOC.right = geom.width();
LOC.right_start_y = geom.y();
LOC.right_end_y = geom.y()+geom.height();
}
//Change the property
xcb_ewmh_set_wm_strut_partial(&EWMH, win, LOC); //_NET_WM_STRUT_PARTIAL (not always used)
xcb_ewmh_set_wm_strut(&EWMH, win, LOC.left, LOC.right, LOC.top, LOC.bottom); //_NET_WM_STRUT
}
/*void LXCB::SetWindowBackground(QWidget *parent, QRect area, WId client){
//Copy the image from the parent onto the client (parent/child - for system tray apps)
//First create the background graphics context
//qDebug() << "Create graphics context";
//xcb_screen_t *root_screen = xcb_aux_get_screen(QX11Info::connection(), QX11Info::appScreen());
uint32_t val = XCB_GX_CLEAR;
xcb_gcontext_t graphic_context = xcb_generate_id(QX11Info::connection());
xcb_create_gc(QX11Info::connection(), graphic_context, client, XCB_GC_BACKGROUND | XCB_GC_FOREGROUND, &val);
//qDebug() << "Copy Background Area";
//Now copy the image onto the client background
xcb_copy_area(QX11Info::connection(),
parent->winId(),
client,
graphic_context,
area.x(), area.y(),
0, 0,
area.width(), area.height());
//Now re-map the client so it paints on top of the new background
//qDebug() << "Map Window";
//xcb_map_window(QX11Info::connection(), client);
//Clean up variables
xcb_free_gc(QX11Info::connection(), graphic_context);
}*/
// === EmbedWindow() ===
uint LXCB::EmbedWindow(WId win, WId container){
if(DEBUG){ qDebug() << "XCB: EmbedWindow()"; }
//This returns the damage control ID number (or 0 for a failure)
if(win==0 || container==0 || LXCB::WindowClass(win).isEmpty() ){ return 0; } //invalid window (destroyed before getting here?)
//qDebug() << "Embed Window:" << win << container;
//Initialize any atoms that will be needed
xcb_intern_atom_cookie_t ecookie = xcb_intern_atom_unchecked(QX11Info::connection(), 0, 7, "_XEMBED");
xcb_intern_atom_reply_t *ereply = xcb_intern_atom_reply(QX11Info::connection(), ecookie, NULL);
if(ereply==0){ return 0; } //unable to initialize the atom
xcb_atom_t emb = ereply->atom;
free(ereply); //done with this structure
//Reparent the window into the container
xcb_reparent_window(QX11Info::connection(), win, container, 0, 0);
xcb_map_window(QX11Info::connection(), win);
//Now send the embed event to the app
//qDebug() << " - send _XEMBED event";
xcb_client_message_event_t event;
event.response_type = XCB_CLIENT_MESSAGE;
event.format = 32;
event.window = win;
event.type = emb; //_XEMBED
event.data.data32[0] = XCB_TIME_CURRENT_TIME; //CurrentTime;
event.data.data32[1] = 0; //XEMBED_EMBEDDED_NOTIFY
event.data.data32[2] = 0;
event.data.data32[3] = container; //WID of the container
event.data.data32[4] = 0;
xcb_send_event(QX11Info::connection(), 0, win, XCB_EVENT_MASK_STRUCTURE_NOTIFY | XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT, (const char *) &event);
//Now setup any redirects and return
this->SelectInput(win, true); //Notify of structure changes
xcb_composite_redirect_window(QX11Info::connection(), win, XCB_COMPOSITE_REDIRECT_MANUAL); //XCB_COMPOSITE_REDIRECT_[MANUAL/AUTOMATIC]);
//Now map the window (will be a transparent child of the container)
xcb_map_window(QX11Info::connection(), win);
//Now create/register the damage handler
// -- XCB (Note: The XCB damage registration is completely broken at the moment - 9/15/15, Ken Moore)
//xcb_damage_damage_t dmgID = xcb_generate_id(QX11Info::connection()); //This is a typedef for a 32-bit unsigned integer
//xcb_damage_create(QX11Info::connection(), dmgID, win, XCB_DAMAGE_REPORT_LEVEL_RAW_RECTANGLES);
// -- XLib (Note: This is only used because the XCB routine above does not work - needs to be fixed upstream in XCB itself).
Damage dmgID = XDamageCreate(QX11Info::display(), win, XDamageReportRawRectangles);
//qDebug() << " - Done";
return ( (uint) dmgID );
}
// === Unembed Window() ===
bool LXCB::UnembedWindow(WId win){
if(DEBUG){ qDebug() << "XCB: UnembedWindow()"; }
if(win==0){ return false; }
//Remove redirects
uint32_t val[] = {XCB_EVENT_MASK_NO_EVENT};
xcb_change_window_attributes(QX11Info::connection(), win, XCB_CW_EVENT_MASK, val);
//Make sure it is invisible
xcb_unmap_window(QX11Info::connection(), win);
//Reparent the window back to the root window
xcb_reparent_window(QX11Info::connection(), win, QX11Info::appRootWindow(), 0, 0);
return true;
}
// === TrayImage() ===
QPixmap LXCB::TrayImage(WId win){
QPixmap pix;
//Get the current QScreen (for XCB->Qt conversion)
QList<QScreen*> scrnlist = QApplication::screens();
if(scrnlist.isEmpty()){ return pix; }
//Try to grab the given window directly with Qt
if(pix.isNull()){
pix = scrnlist[0]->grabWindow(win);
}
return pix;
//NOTE: Code below here saved for reference later (as necessary)
// -------------------------------
/*//First get the pixmap from the XCB compositing layer (since the tray images are redirected there)
xcb_pixmap_t pixmap = xcb_generate_id(QX11Info::connection());
xcb_composite_name_window_pixmap(QX11Info::connection(), win, pixmap);
//Get the sizing information about the pixmap
xcb_get_geometry_cookie_t Gcookie = xcb_get_geometry_unchecked(QX11Info::connection(), pixmap);
xcb_get_geometry_reply_t *Greply = xcb_get_geometry_reply(QX11Info::connection(), Gcookie, NULL);
if(Greply==0){ qDebug() << "[Tray Image] - Geom Fetch Error:"; return QPixmap(); } //Error in geometry detection
//Now convert the XCB pixmap into an XCB image
xcb_get_image_cookie_t GIcookie = xcb_get_image_unchecked(QX11Info::connection(), XCB_IMAGE_FORMAT_Z_PIXMAP, pixmap, 0, 0, Greply->width, Greply->height, 0xffffffff);
xcb_get_image_reply_t *GIreply = xcb_get_image_reply(QX11Info::connection(), GIcookie, NULL);
if(GIreply==0){ qDebug() << "[Tray Image] - Image Convert Error:"; return QPixmap(); } //Error in conversion
uint8_t *GIdata = xcb_get_image_data(GIreply);
uint32_t BPL = xcb_get_image_data_length(GIreply) / Greply->height; //bytes per line
//Now convert the XCB image into a Qt Image
QImage image(const_cast<uint8_t *>(GIdata), Greply->width, Greply->height, BPL, QImage::Format_ARGB32_Premultiplied);
//Free the various data structures
free(GIreply); //done with get image reply