summaryrefslogtreecommitdiffstats
path: root/2020/subtitles/emacsconf-2020--34-extend-emacs-to-modern-gui-applications-with-eaf--matthew-zeng-autogen.vtt
blob: d9a406f9f825425b1bf404d2c9e0046cffeab71b (plain) (blame)
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
WEBVTT

00:00:03.600 --> 00:00:04.560
hello

00:00:04.560 --> 00:00:06.720
hopefully everyone is staying safe and

00:00:06.720 --> 00:00:08.000
staying home

00:00:08.000 --> 00:00:10.000
I feel very grateful to live in a world

00:00:10.000 --> 00:00:12.000
today that technology and free software

00:00:12.000 --> 00:00:13.759
can be leveraged to connect people in

00:00:13.759 --> 00:00:16.080
such disconnected and difficult times

00:00:16.080 --> 00:00:17.840
and to have an online conference like

00:00:17.840 --> 00:00:19.920
this hopefully you've all

00:00:19.920 --> 00:00:22.960
enjoyed this year's Emacs con so far

00:00:22.960 --> 00:00:24.720
many thanks to all the people that made

00:00:24.720 --> 00:00:26.880
this possible

00:00:26.880 --> 00:00:30.000
anyways welcome to my talk extend Emacs

00:00:30.000 --> 00:00:30.960
to modern gui

00:00:30.960 --> 00:00:34.079
applications with eaf the imax

00:00:34.079 --> 00:00:35.920
application framework

00:00:35.920 --> 00:00:38.320
this will be my first ever talk so

00:00:38.320 --> 00:00:39.840
apologies for my

00:00:39.840 --> 00:00:43.280
inexperience let us begin

00:00:43.280 --> 00:00:46.559
about me my name is matthew zing you can

00:00:46.559 --> 00:00:47.840
also call me mt

00:00:47.840 --> 00:00:50.640
or mindu I'm a chinese canadian living

00:00:50.640 --> 00:00:51.440
in toronto

00:00:51.440 --> 00:00:54.239
ontario offline I'm an undergrad

00:00:54.239 --> 00:00:56.079
studying mathematics at the university

00:00:56.079 --> 00:00:57.760
of urudu

00:00:57.760 --> 00:01:00.480
online I mean one of the admins of the

00:01:00.480 --> 00:01:03.039
Emacs china

00:01:03.039 --> 00:01:06.320
the largest Emacs forum in china so

00:01:06.320 --> 00:01:08.080
to all chinese listen to my talk right

00:01:08.080 --> 00:01:10.960
now feel free to check it out

00:01:10.960 --> 00:01:14.320
and this is a link to my github profile

00:01:14.320 --> 00:01:17.280
to my projects I'm involving one's me

00:01:17.280 --> 00:01:18.240
max which is

00:01:18.240 --> 00:01:20.159
I'm the author of a user-friendly

00:01:20.159 --> 00:01:21.840
full-featured image configuration

00:01:21.840 --> 00:01:22.799
distribution

00:01:22.799 --> 00:01:25.040
it is what I'm using right now as well

00:01:25.040 --> 00:01:26.880
as the imax application filter

00:01:26.880 --> 00:01:29.119
which I help to maintain along with the

00:01:29.119 --> 00:01:30.400
other other

00:01:30.400 --> 00:01:33.040
lazy cat which of course is today's

00:01:33.040 --> 00:01:35.759
topic

00:01:35.759 --> 00:01:38.720
so as you might all might have already

00:01:38.720 --> 00:01:40.960
noticed I'm currently using Emacs

00:01:40.960 --> 00:01:43.600
and oh and opening navigating closing

00:01:43.600 --> 00:01:45.360
all these websites that are rendered

00:01:45.360 --> 00:01:46.159
properly

00:01:46.159 --> 00:01:49.200
or within Emacs it's all thanks to the

00:01:49.200 --> 00:01:51.840
ef project

00:01:51.840 --> 00:01:54.000
so we're living in a society that's

00:01:54.000 --> 00:01:55.920
heavily dependent on the internet

00:01:55.920 --> 00:01:59.520
and multimedia it is unavoidable to run

00:01:59.520 --> 00:02:01.200
to some occasion that you need to

00:02:01.200 --> 00:02:02.880
open a fancy website that uses

00:02:02.880 --> 00:02:04.799
javascript and css

00:02:04.799 --> 00:02:08.239
or you need to watch some videos however

00:02:08.239 --> 00:02:11.120
due to the nature and history of Emacs

00:02:11.120 --> 00:02:11.840
it cannot

00:02:11.840 --> 00:02:13.840
render all these modern graphics

00:02:13.840 --> 00:02:16.400
effectively and efficiently

00:02:16.400 --> 00:02:19.360
Emacs is solely a text-based editing

00:02:19.360 --> 00:02:20.400
environment

00:02:20.400 --> 00:02:23.520
and I argue that this is not a bad thing

00:02:23.520 --> 00:02:25.680
in fact it is one of the reasons that me

00:02:25.680 --> 00:02:27.760
and I believe many of you as well

00:02:27.760 --> 00:02:29.760
are attracted to Emacs in the first

00:02:29.760 --> 00:02:30.879
place

00:02:30.879 --> 00:02:33.760
unfortunately this results in us having

00:02:33.760 --> 00:02:35.680
to open a dedicated web browser to

00:02:35.680 --> 00:02:37.040
browse the internet

00:02:37.040 --> 00:02:38.879
open a dedicated video player to watch

00:02:38.879 --> 00:02:41.440
some videos or a pdf render to read some

00:02:41.440 --> 00:02:42.640
documents

00:02:42.640 --> 00:02:45.200
so far ems cannot do all these tasks on

00:02:45.200 --> 00:02:46.000
its own

00:02:46.000 --> 00:02:48.080
but can only be achieved using other

00:02:48.080 --> 00:02:51.519
external applications

00:02:51.519 --> 00:02:55.840
so the other the author manatee lazy cat

00:02:55.840 --> 00:02:58.640
or lazy cat in short didn't want to use

00:02:58.640 --> 00:03:00.560
all these external applications

00:03:00.560 --> 00:03:03.120
he wanted to have an uninterrupted e-max

00:03:03.120 --> 00:03:04.159
experience

00:03:04.159 --> 00:03:07.280
he wanted to truly live in e-max

00:03:07.280 --> 00:03:10.080
however it would be a lot of work to

00:03:10.080 --> 00:03:11.040
build this

00:03:11.040 --> 00:03:13.519
modern application from scratch there's

00:03:13.519 --> 00:03:16.239
simply no time or research to do that

00:03:16.239 --> 00:03:18.800
so lazy car without utilizing existing

00:03:18.800 --> 00:03:20.400
applications

00:03:20.400 --> 00:03:22.319
and to try to make it collaborate with

00:03:22.319 --> 00:03:24.959
Emacs there are many solutions available

00:03:24.959 --> 00:03:26.000
one of it

00:03:26.000 --> 00:03:28.560
is the e-max x windows manager and I'm

00:03:28.560 --> 00:03:30.159
sure a lot of you already know that

00:03:30.159 --> 00:03:33.360
the exwm however it didn't work for him

00:03:33.360 --> 00:03:35.200
because although ux doubling opens the

00:03:35.200 --> 00:03:37.440
door to use other applications within

00:03:37.440 --> 00:03:38.239
Emacs

00:03:38.239 --> 00:03:40.879
it as a fine window manager cannot

00:03:40.879 --> 00:03:41.519
modify

00:03:41.519 --> 00:03:43.920
customize or extend other software from

00:03:43.920 --> 00:03:45.040
Emacs

00:03:45.040 --> 00:03:46.799
for example it cannot modify the

00:03:46.799 --> 00:03:48.480
behavior when you press a key in

00:03:48.480 --> 00:03:49.599
chromium or

00:03:49.599 --> 00:03:52.159
pdf viewer therefore it cannot utilize

00:03:52.159 --> 00:03:54.000
the rich emax ecosystem that's been

00:03:54.000 --> 00:03:57.360
growing for almost 40 years

00:03:57.360 --> 00:04:00.720
on the other hand in the ef browser so

00:04:00.720 --> 00:04:03.760
if you mx ef open

00:04:03.760 --> 00:04:07.200
browser with history you can see

00:04:07.200 --> 00:04:09.840
on the lower half of my screen a list of

00:04:09.840 --> 00:04:11.920
histories sorted by my personal

00:04:11.920 --> 00:04:14.560
most visited sites and you can search

00:04:14.560 --> 00:04:16.560
for a site that you've been

00:04:16.560 --> 00:04:19.440
into or search for some keyword and in a

00:04:19.440 --> 00:04:21.840
search engine

00:04:21.840 --> 00:04:24.240
so this is all achieved by utilizing the

00:04:24.240 --> 00:04:25.919
popular completion framework in the

00:04:25.919 --> 00:04:29.280
Emacs ecosystem

00:04:29.280 --> 00:04:31.120
so this car decided to develop a

00:04:31.120 --> 00:04:33.680
solution of its own in 2018

00:04:33.680 --> 00:04:36.960
namely the eaf project so I joined the

00:04:36.960 --> 00:04:40.840
development last year

00:04:40.840 --> 00:04:44.000
2019 ef is

00:04:44.000 --> 00:04:47.880
a highly customizable and extensible

00:04:47.880 --> 00:04:49.759
reapplication framework that extends

00:04:49.759 --> 00:04:52.160
imax to graphical capabilities using pi

00:04:52.160 --> 00:04:57.840
qd5 and it is not a window manager

00:04:57.840 --> 00:05:02.479
alright so in the readme you can see a

00:05:02.479 --> 00:05:03.440
list of gifs

00:05:03.440 --> 00:05:05.600
showcasing all the available ef

00:05:05.600 --> 00:05:06.720
applications

00:05:06.720 --> 00:05:09.520
a browser a markdown premier a video

00:05:09.520 --> 00:05:10.960
player

00:05:10.960 --> 00:05:14.240
a pdf viewer and more today I don't have

00:05:14.240 --> 00:05:16.160
enough time to demonstrate each one of

00:05:16.160 --> 00:05:16.560
them

00:05:16.560 --> 00:05:18.720
but I will select a couple applications

00:05:18.720 --> 00:05:21.120
to show you

00:05:21.120 --> 00:05:24.240
so since we are already using ef browser

00:05:24.240 --> 00:05:27.840
we'll start with this besides using the

00:05:27.840 --> 00:05:29.600
classic control n control p

00:05:29.600 --> 00:05:32.000
you can also use the vim style xjkl to

00:05:32.000 --> 00:05:33.840
move up or down

00:05:33.840 --> 00:05:36.320
also meta shift comma or g to the

00:05:36.320 --> 00:05:37.280
beginning of page

00:05:37.280 --> 00:05:39.120
when that shift period or capital g to

00:05:39.120 --> 00:05:41.199
the end of page

00:05:41.199 --> 00:05:44.320
limiting and surfing keys linear and

00:05:44.320 --> 00:05:46.479
surfing keys are popular keyboard-based

00:05:46.479 --> 00:05:48.400
browsing techniques in chrome

00:05:48.400 --> 00:05:50.479
and they've imported here as well you

00:05:50.479 --> 00:05:52.720
can press f to toggle markers pointing

00:05:52.720 --> 00:05:53.039
to

00:05:53.039 --> 00:05:55.280
all the links in the current page say I

00:05:55.280 --> 00:05:56.960
want to visit the wiki

00:05:56.960 --> 00:05:59.680
which comes very very handy when you

00:05:59.680 --> 00:06:02.400
want to configure ef to your liking

00:06:02.400 --> 00:06:04.720
so you see the marker on top of wiki is

00:06:04.720 --> 00:06:05.440
dd

00:06:05.440 --> 00:06:08.479
press dd and you enter and now

00:06:08.479 --> 00:06:10.240
you will navigate it to this link so you

00:06:10.240 --> 00:06:13.840
don't need to use your mouse at all

00:06:13.840 --> 00:06:16.560
so a full list of key bindings can be

00:06:16.560 --> 00:06:17.680
found when you

00:06:17.680 --> 00:06:20.560
control hm just as any other max major

00:06:20.560 --> 00:06:21.199
mode

00:06:21.199 --> 00:06:22.960
so you don't have to remember everything

00:06:22.960 --> 00:06:25.600
all the key bindings I said to you

00:06:25.600 --> 00:06:28.560
so this is a global binding application

00:06:28.560 --> 00:06:30.960
to every other ef application as well

00:06:30.960 --> 00:06:34.319
so you can find it under the week or or

00:06:34.319 --> 00:06:36.720
you can find it under the wiki in the

00:06:36.720 --> 00:06:37.600
key binding

00:06:37.600 --> 00:06:40.639
section so press f again and use

00:06:40.639 --> 00:06:44.240
ns press enter now you're in the key

00:06:44.240 --> 00:06:45.600
binding web page

00:06:45.600 --> 00:06:47.520
you can see all of the key buttons

00:06:47.520 --> 00:06:49.280
available in every

00:06:49.280 --> 00:06:53.919
es application and you can try them out

00:06:53.919 --> 00:06:56.479
and you can customize your key bindings

00:06:56.479 --> 00:06:57.360
using ef

00:06:57.360 --> 00:07:00.240
bank key you can customize control n as

00:07:00.240 --> 00:07:02.960
in the web page to

00:07:02.960 --> 00:07:05.759
to scroll up in the ef pdf viewer or you

00:07:05.759 --> 00:07:06.639
can unbind

00:07:06.639 --> 00:07:09.599
an existing binding using using yet bank

00:07:09.599 --> 00:07:10.000
key

00:07:10.000 --> 00:07:14.840
binder to new so it doesn't bind to

00:07:14.840 --> 00:07:16.160
anything

00:07:16.160 --> 00:07:20.319
okay so here comes the important part

00:07:20.319 --> 00:07:22.479
if you want to customize ef you should

00:07:22.479 --> 00:07:25.440
visit the customization page in the wiki

00:07:25.440 --> 00:07:28.840
so now I press meta b to go back in

00:07:28.840 --> 00:07:30.240
history and

00:07:30.240 --> 00:07:32.960
go to the customization package press f

00:07:32.960 --> 00:07:34.080
press a d

00:07:34.080 --> 00:07:36.639
enter and now we're in the customization

00:07:36.639 --> 00:07:37.360
page

00:07:37.360 --> 00:07:39.280
so the first customization option you

00:07:39.280 --> 00:07:42.639
see is dark mode

00:07:42.639 --> 00:07:44.479
let's say if you want to turn on the doc

00:07:44.479 --> 00:07:46.720
mode for ef browser

00:07:46.720 --> 00:07:48.479
and you don't want to use your mouse to

00:07:48.479 --> 00:07:49.919
do all this stuff

00:07:49.919 --> 00:07:53.360
you press c and you can select

00:07:53.360 --> 00:07:55.840
c to toggle the correct browsing you can

00:07:55.840 --> 00:07:58.240
see a lot of markers available

00:07:58.240 --> 00:08:01.280
pop um again but they're not they're not

00:08:01.280 --> 00:08:02.720
on top of links but instead of

00:08:02.720 --> 00:08:03.599
paragraphs

00:08:03.599 --> 00:08:05.360
you select the paragraph or your choice

00:08:05.360 --> 00:08:06.639
in this case you want

00:08:06.639 --> 00:08:10.240
ls which comes here

00:08:10.240 --> 00:08:12.720
and then you just you just move the

00:08:12.720 --> 00:08:15.120
cursor like what you always do

00:08:15.120 --> 00:08:18.800
in Emacs and now you select everything

00:08:18.800 --> 00:08:23.280
and use meta w to

00:08:23.280 --> 00:08:25.680
excuse me metadata to copy the taste the

00:08:25.680 --> 00:08:26.479
text

00:08:26.479 --> 00:08:29.199
now we made a shift column to evaluate

00:08:29.199 --> 00:08:30.960
what we just copied

00:08:30.960 --> 00:08:35.120
and set that to true and

00:08:35.120 --> 00:08:38.320
press r or f5 to refresh the page

00:08:38.320 --> 00:08:42.159
voila we have the dark mode enabled

00:08:42.159 --> 00:08:44.880
so there are well let's take a toggle

00:08:44.880 --> 00:08:46.160
back off for now

00:08:46.160 --> 00:08:49.360
now we made our shift column again

00:08:49.360 --> 00:08:51.600
and we find the the one we just used and

00:08:51.600 --> 00:08:53.519
change it back to false

00:08:53.519 --> 00:08:56.880
and refresh the page back in the light

00:08:56.880 --> 00:08:59.360
mode

00:08:59.360 --> 00:09:02.160
so there are many other customization

00:09:02.160 --> 00:09:03.680
options available you can either

00:09:03.680 --> 00:09:05.920
evaluate like what we just did or add it

00:09:05.920 --> 00:09:08.000
to your Emacs configuration file

00:09:08.000 --> 00:09:11.680
so in this wiki you can have you can

00:09:11.680 --> 00:09:14.399
you can make the ef browser to to

00:09:14.399 --> 00:09:16.320
continue where you left off

00:09:16.320 --> 00:09:20.160
similar to the chromium setting

00:09:20.160 --> 00:09:22.800
and you can make yes the default browser

00:09:22.800 --> 00:09:23.839
Emacs by

00:09:23.839 --> 00:09:26.720
aliasing aliasing browse web to your

00:09:26.720 --> 00:09:27.680
open browser

00:09:27.680 --> 00:09:30.399
or or set the browse url browser

00:09:30.399 --> 00:09:31.200
function to

00:09:31.200 --> 00:09:33.519
open browser there's just some tricks

00:09:33.519 --> 00:09:34.480
and there are also

00:09:34.480 --> 00:09:37.920
uh an experimental app blocker currently

00:09:37.920 --> 00:09:41.680
take in place and so therefore it can

00:09:41.680 --> 00:09:44.720
block some elements but not all so

00:09:44.720 --> 00:09:47.279
we we really encourage people to help us

00:09:47.279 --> 00:09:48.240
test out and

00:09:48.240 --> 00:09:51.440
add more conditions in

00:09:51.440 --> 00:09:54.560
so you can so the ef browser is able to

00:09:54.560 --> 00:09:55.760
download

00:09:55.760 --> 00:09:57.680
any files from the internet and it will

00:09:57.680 --> 00:09:59.920
be downloaded using

00:09:59.920 --> 00:10:04.000
a area too and

00:10:04.000 --> 00:10:06.079
you can also customize the ef browser

00:10:06.079 --> 00:10:07.200
download path

00:10:07.200 --> 00:10:11.120
using ef set so it's a function that we

00:10:11.120 --> 00:10:14.399
defined similar to set the normal set we

00:10:14.399 --> 00:10:15.040
know

00:10:15.040 --> 00:10:16.480
so by default the download file is

00:10:16.480 --> 00:10:18.160
stored in your home directory slash

00:10:18.160 --> 00:10:19.600
downloads

00:10:19.600 --> 00:10:20.800
and you can change that whenever you

00:10:20.800 --> 00:10:22.720
want you can also disable

00:10:22.720 --> 00:10:26.079
saving browsing history so remember

00:10:26.079 --> 00:10:28.959
when I press when I use mx you have open

00:10:28.959 --> 00:10:30.480
browser's history I see all the

00:10:30.480 --> 00:10:32.079
histories here but if you want more

00:10:32.079 --> 00:10:33.680
privacy you don't want that to be

00:10:33.680 --> 00:10:35.360
available at all you can turn it off

00:10:35.360 --> 00:10:36.560
easily with ef

00:10:36.560 --> 00:10:38.720
set queue and set that remember history

00:10:38.720 --> 00:10:40.640
to false

00:10:40.640 --> 00:10:42.399
you can also say your default search

00:10:42.399 --> 00:10:43.839
engine so

00:10:43.839 --> 00:10:47.200
so right now we have google although

00:10:47.200 --> 00:10:50.480
not not really good but google and also

00:10:50.480 --> 00:10:53.600
go which is a better search engine

00:10:53.600 --> 00:10:57.360
well uh yeah ethically better search

00:10:57.360 --> 00:10:59.360
engine

00:10:59.360 --> 00:11:02.560
so you can also configure

00:11:02.560 --> 00:11:05.040
the zoom so the default zoom of your

00:11:05.040 --> 00:11:07.600
browser is 1.0 so you can convert

00:11:07.600 --> 00:11:10.000
convert 3000 to 1.25 so you can so when

00:11:10.000 --> 00:11:11.920
you open any web page about it will be

00:11:11.920 --> 00:11:14.079
zoomed

00:11:14.079 --> 00:11:17.360
by default uh you can

00:11:17.360 --> 00:11:20.399
also disable javascript although I

00:11:20.399 --> 00:11:22.240
personally don't really suggest you to

00:11:22.240 --> 00:11:23.440
do because it will

00:11:23.440 --> 00:11:26.240
basically break a lot of our features

00:11:26.240 --> 00:11:28.480
because a lot of the browser browser

00:11:28.480 --> 00:11:29.519
related features

00:11:29.519 --> 00:11:33.760
must be implemented using javascript

00:11:33.760 --> 00:11:35.440
but yeah you can do it if you really

00:11:35.440 --> 00:11:37.920
want to and there also some

00:11:37.920 --> 00:11:41.519
customization on ef camera

00:11:41.519 --> 00:11:47.760
you can do as well yeah

00:11:47.760 --> 00:11:52.399
so uh let's move on to efpd viewer

00:11:52.399 --> 00:11:56.079
so now now let's open

00:11:56.079 --> 00:11:59.440
the pdf file using af

00:11:59.440 --> 00:12:01.519
so that's one something already here but

00:12:01.519 --> 00:12:02.720
let's open it here

00:12:02.720 --> 00:12:06.079
so yes open and

00:12:06.079 --> 00:12:08.160
select introduction to programming in

00:12:08.160 --> 00:12:11.440
e-max list

00:12:11.440 --> 00:12:13.760
uh I have it already open but it's okay

00:12:13.760 --> 00:12:17.040
so you have the file

00:12:17.040 --> 00:12:20.160
you have other files displayed

00:12:20.160 --> 00:12:22.800
you have all the pages display story yes

00:12:22.800 --> 00:12:23.200
and

00:12:23.200 --> 00:12:27.040
there are 273 pages in total but notice

00:12:27.040 --> 00:12:29.279
like how fast it is to browse

00:12:29.279 --> 00:12:31.440
all the pages it is blazingly fast

00:12:31.440 --> 00:12:33.519
that's all thanks to python and

00:12:33.519 --> 00:12:37.040
mupdf which you don't really get from

00:12:37.040 --> 00:12:40.880
Emacs list

00:12:40.880 --> 00:12:43.600
so let's say if I want to jump to page

00:12:43.600 --> 00:12:44.079
50

00:12:44.079 --> 00:12:48.639
we press p and enter 50.

00:12:48.639 --> 00:12:53.279
50 and here we are we are at page 50.

00:12:53.279 --> 00:12:55.440
you can look at the lower right to

00:12:55.440 --> 00:12:58.880
verify the page you're on

00:12:58.880 --> 00:13:02.079
and you can you can

00:13:02.079 --> 00:13:05.120
use I to toggle dark mode

00:13:05.120 --> 00:13:07.839
as expected and let's say you want to

00:13:07.839 --> 00:13:08.240
find

00:13:08.240 --> 00:13:11.519
table of contents so use ctrl s

00:13:11.519 --> 00:13:15.680
the image default binding for I search

00:13:15.680 --> 00:13:19.360
and search for a table of contents

00:13:19.360 --> 00:13:21.680
here we are it is highlighted for you

00:13:21.680 --> 00:13:23.120
and you can control s for more but

00:13:23.120 --> 00:13:24.240
there's only one or

00:13:24.240 --> 00:13:27.200
one match one other one you ctrl g to

00:13:27.200 --> 00:13:28.800
disable the highlight

00:13:28.800 --> 00:13:30.880
and you see a lot of options for you to

00:13:30.880 --> 00:13:32.320
go

00:13:32.320 --> 00:13:35.040
okay let's say if you want to go to the

00:13:35.040 --> 00:13:36.240
preface

00:13:36.240 --> 00:13:39.519
so that is you press f which which is

00:13:39.519 --> 00:13:40.639
also similar to

00:13:40.639 --> 00:13:44.240
eef browser you press f for vimeo

00:13:44.240 --> 00:13:47.760
and you see the marker now change to w

00:13:47.760 --> 00:13:50.160
press wn and then you can go to the

00:13:50.160 --> 00:13:51.279
prefix

00:13:51.279 --> 00:13:54.320
now we'll add a prefix

00:13:54.320 --> 00:13:56.480
so now you finish reading you want to

00:13:56.480 --> 00:13:57.600
save your progress

00:13:57.600 --> 00:13:59.440
no worries it is already saved for you

00:13:59.440 --> 00:14:01.199
by ef you can safely

00:14:01.199 --> 00:14:04.240
close the document using x

00:14:04.240 --> 00:14:07.519
and opening again af

00:14:07.519 --> 00:14:10.560
open and the file see your I

00:14:10.560 --> 00:14:14.000
preface again so you're right at where

00:14:14.000 --> 00:14:16.560
you let up left up

00:14:16.560 --> 00:14:19.440
you can also use mx org store link or

00:14:19.440 --> 00:14:20.480
ctrl cl

00:14:20.480 --> 00:14:23.279
which I prefer to if you want to save a

00:14:23.279 --> 00:14:24.480
particular page in

00:14:24.480 --> 00:14:28.240
a orgmo file so now

00:14:28.240 --> 00:14:30.320
I go back to my presentation now I don't

00:14:30.320 --> 00:14:31.760
need this anymore

00:14:31.760 --> 00:14:35.600
uh so you just control c control l

00:14:35.600 --> 00:14:39.120
or I think mx or insert link

00:14:39.120 --> 00:14:41.040
so you can find the file right here and

00:14:41.040 --> 00:14:42.399
you press enter

00:14:42.399 --> 00:14:44.320
and you press enter for the description

00:14:44.320 --> 00:14:46.480
again and now it's right here

00:14:46.480 --> 00:14:50.720
and ctrl c ctrl o to open it voila

00:14:50.720 --> 00:14:54.000
you're back right so

00:14:54.000 --> 00:14:57.120
let's now demonstrate the ef video

00:14:57.120 --> 00:14:58.880
player

00:14:58.880 --> 00:15:02.639
so mxef open if you use ef open whenever

00:15:02.639 --> 00:15:03.279
you want to

00:15:03.279 --> 00:15:06.079
open some file you use yet open browser

00:15:06.079 --> 00:15:07.279
if you want to use some

00:15:07.279 --> 00:15:09.920
actual application that's not really

00:15:09.920 --> 00:15:11.199
related to a file

00:15:11.199 --> 00:15:14.800
so you have open and select the video

00:15:14.800 --> 00:15:15.600
you want so

00:15:15.600 --> 00:15:18.320
video demo so I already have a video

00:15:18.320 --> 00:15:19.040
demo

00:15:19.040 --> 00:15:21.839
ready so because I recorded a video of

00:15:21.839 --> 00:15:22.720
the demo

00:15:22.720 --> 00:15:26.000
of the ef camera have a look so

00:15:26.000 --> 00:15:28.079
let's move to the beginning hello people

00:15:28.079 --> 00:15:29.279
from the future

00:15:29.279 --> 00:15:32.399
this is a demo of the ef video player

00:15:32.399 --> 00:15:35.199
that demos the ef camera feature

00:15:35.199 --> 00:15:37.440
so as you can see on the screen of me

00:15:37.440 --> 00:15:38.639
inside my camera

00:15:38.639 --> 00:15:40.959
and the screen is actually with all

00:15:40.959 --> 00:15:42.880
within Emacs

00:15:42.880 --> 00:15:46.079
right so and you can open this

00:15:46.079 --> 00:15:49.839
using here open camera

00:15:49.839 --> 00:15:53.040
and which I'm already into and you can

00:15:53.040 --> 00:15:53.600
press

00:15:53.600 --> 00:15:56.720
p to capture a photo

00:15:56.720 --> 00:15:59.680
so the photo is by default stored at

00:15:59.680 --> 00:16:00.880
your home slash

00:16:00.880 --> 00:16:03.920
downloads directory and you can modify

00:16:03.920 --> 00:16:04.320
it

00:16:04.320 --> 00:16:07.839
freely so if you go here and you can see

00:16:07.839 --> 00:16:09.519
the camera stored

00:16:09.519 --> 00:16:13.759
right here so why what I used here

00:16:13.759 --> 00:16:16.240
so you press space to pause what I used

00:16:16.240 --> 00:16:17.120
here is

00:16:17.120 --> 00:16:20.320
the year so ef open this entire so

00:16:20.320 --> 00:16:22.959
basically so in direct you you go to you

00:16:22.959 --> 00:16:23.839
you select

00:16:23.839 --> 00:16:26.959
the file that should be opened by

00:16:26.959 --> 00:16:30.320
eaf and I use that so it it detects that

00:16:30.320 --> 00:16:32.720
it wants to use the ef image viewer so

00:16:32.720 --> 00:16:35.839
I accidentally tested if image viewer

00:16:35.839 --> 00:16:39.759
before I noticed so that that that gives

00:16:39.759 --> 00:16:40.240
the

00:16:40.240 --> 00:16:43.680
image of the photo I just took

00:16:43.680 --> 00:16:47.040
using ef camera and as you can see you

00:16:47.040 --> 00:16:47.360
can

00:16:47.360 --> 00:16:50.720
I can use hl the bim button to navigate

00:16:50.720 --> 00:16:51.600
in the time

00:16:51.600 --> 00:16:55.920
timestamp in the video and I can use

00:16:55.920 --> 00:17:02.320
jk to to change the volumes of the video

00:17:02.320 --> 00:17:05.520
alright so now you've seen all the basic

00:17:05.520 --> 00:17:06.160
usages

00:17:06.160 --> 00:17:08.720
of the ef project it comes the question

00:17:08.720 --> 00:17:11.600
of what is the magic behind it

00:17:11.600 --> 00:17:14.559
all right let's open the hacking page in

00:17:14.559 --> 00:17:15.919
the wiki

00:17:15.919 --> 00:17:20.400
the design is laid out in a diagram here

00:17:20.400 --> 00:17:25.120
so and let's put it

00:17:25.120 --> 00:17:27.839
side by side along with my text so you

00:17:27.839 --> 00:17:28.160
can

00:17:28.160 --> 00:17:32.320
go we can follow through

00:17:32.320 --> 00:17:36.080
right okay let me

00:17:36.080 --> 00:17:42.320
sorry let me drink some water

00:17:42.320 --> 00:17:46.000
so this page in the wiki went into a lot

00:17:46.000 --> 00:17:48.160
of detail

00:17:48.160 --> 00:17:49.520
due to the time constraint I will just

00:17:49.520 --> 00:17:51.679
rephrase some of the ideas here so for

00:17:51.679 --> 00:17:53.520
anyone interested please have a look at

00:17:53.520 --> 00:17:55.600
the wiki yourself

00:17:55.600 --> 00:17:58.160
the easiest way to think about eaf is

00:17:58.160 --> 00:17:58.720
that

00:17:58.720 --> 00:18:01.679
the actual gui application is started in

00:18:01.679 --> 00:18:02.960
the background

00:18:02.960 --> 00:18:04.960
then the frame of the application is

00:18:04.960 --> 00:18:07.120
attached to the appropriate location on

00:18:07.120 --> 00:18:07.679
the

00:18:07.679 --> 00:18:10.720
Emacs window so

00:18:10.720 --> 00:18:13.440
you have linked qt5 with Emacs using

00:18:13.440 --> 00:18:14.960
list and python

00:18:14.960 --> 00:18:17.120
of the python site which is colored

00:18:17.120 --> 00:18:18.640
yellow in the image

00:18:18.640 --> 00:18:20.559
you have two graphics view and queue

00:18:20.559 --> 00:18:22.960
graphics scene objects

00:18:22.960 --> 00:18:25.039
these are used to simulate the e-max

00:18:25.039 --> 00:18:26.640
window buffer design

00:18:26.640 --> 00:18:28.640
where q graphics scene is similar to

00:18:28.640 --> 00:18:29.840
buffers in Emacs

00:18:29.840 --> 00:18:31.840
it controls the state and the content

00:18:31.840 --> 00:18:34.240
details of the application

00:18:34.240 --> 00:18:39.039
well q graphics view is similar to

00:18:39.039 --> 00:18:41.200
geographic view is similar to imax

00:18:41.200 --> 00:18:43.200
window it populates the buffer

00:18:43.200 --> 00:18:45.919
to graphics scene to the full program at

00:18:45.919 --> 00:18:46.960
the appropriate

00:18:46.960 --> 00:18:50.320
position whenever an ef mode buffer

00:18:50.320 --> 00:18:57.679
brings to a background

00:18:57.679 --> 00:18:59.679
whenever an ef mode buffer brings to the

00:18:59.679 --> 00:19:00.880
foreground sorry

00:19:00.880 --> 00:19:02.559
a queue graphics view instance is

00:19:02.559 --> 00:19:05.120
created and whenever the buffer goes to

00:19:05.120 --> 00:19:06.080
the background

00:19:06.080 --> 00:19:08.000
the q graphics view instance is then

00:19:08.000 --> 00:19:09.120
deleted

00:19:09.120 --> 00:19:10.960
while q graphics scene the actual

00:19:10.960 --> 00:19:12.480
process remains running in the

00:19:12.480 --> 00:19:14.480
background until the ef mode buffer is

00:19:14.480 --> 00:19:16.000
killed

00:19:16.000 --> 00:19:18.320
gpa compositing is used to ensure that q

00:19:18.320 --> 00:19:19.440
graphics view and

00:19:19.440 --> 00:19:21.840
graphics sync is synchronized real time

00:19:21.840 --> 00:19:24.000
using q windows set parent function

00:19:24.000 --> 00:19:25.679
the queue graphics view is attached to

00:19:25.679 --> 00:19:27.840
appropriate location on the e-max frame

00:19:27.840 --> 00:19:30.640
so that although great applications are

00:19:30.640 --> 00:19:32.400
not running within e-max

00:19:32.400 --> 00:19:36.160
they look as if they were

00:19:36.160 --> 00:19:39.039
so when user types on the keyboard it is

00:19:39.039 --> 00:19:41.039
first received by the Emacs ef

00:19:41.039 --> 00:19:43.520
ef mode buffer and then it lifts sends

00:19:43.520 --> 00:19:45.360
the event to google graphics sync using

00:19:45.360 --> 00:19:46.240
dbus

00:19:46.240 --> 00:19:48.720
when user clicks on the gui application

00:19:48.720 --> 00:19:50.400
it is received by the queue graphics

00:19:50.400 --> 00:19:50.799
view

00:19:50.799 --> 00:19:53.280
and process in python ellipse can

00:19:53.280 --> 00:19:55.200
communicate with python through dbus

00:19:55.200 --> 00:19:59.200
in other words in other words you can

00:19:59.200 --> 00:20:01.360
customize and extend Emacs not just

00:20:01.360 --> 00:20:01.760
using

00:20:01.760 --> 00:20:04.480
lisp and now you can use python this way

00:20:04.480 --> 00:20:05.360
one can leverage

00:20:05.360 --> 00:20:07.039
all the python properties like

00:20:07.039 --> 00:20:09.600
multi-threading or some other stuff

00:20:09.600 --> 00:20:11.679
the entire python ecosystem can be

00:20:11.679 --> 00:20:13.520
utilized as well

00:20:13.520 --> 00:20:16.159
such as the qt web engine that is the

00:20:16.159 --> 00:20:16.960
basis for

00:20:16.960 --> 00:20:20.640
our eef browser and pi mu pdf is the

00:20:20.640 --> 00:20:23.360
basis for the ef pdf viewer

00:20:23.360 --> 00:20:25.840
so this really opens the window to many

00:20:25.840 --> 00:20:28.240
many new possibilities to extend Emacs

00:20:28.240 --> 00:20:32.720
using eaf

00:20:32.720 --> 00:20:36.080
all right back here we are always

00:20:36.080 --> 00:20:37.760
looking for people to join the

00:20:37.760 --> 00:20:39.679
development there are many many

00:20:39.679 --> 00:20:42.720
more work that needs to be done like

00:20:42.720 --> 00:20:44.640
such as testing and debug if there are

00:20:44.640 --> 00:20:46.640
more linux distros and window managers

00:20:46.640 --> 00:20:47.760
such as i3

00:20:47.760 --> 00:20:51.200
and stuff I mean you can also add new ef

00:20:51.200 --> 00:20:52.080
applications

00:20:52.080 --> 00:20:54.240
or debug and enhance existing af

00:20:54.240 --> 00:20:55.440
applications

00:20:55.440 --> 00:20:58.000
or you can port ef to native wayland

00:20:58.000 --> 00:21:00.240
which I just discussed with the

00:21:00.240 --> 00:21:03.840
the ems whip kit author uh a kill

00:21:03.840 --> 00:21:07.919
akira tile and she he told me that like

00:21:07.919 --> 00:21:10.159
really like it must really yeah it

00:21:10.159 --> 00:21:11.200
doesn't really work

00:21:11.200 --> 00:21:14.320
um native villain because it uses

00:21:14.320 --> 00:21:16.799
x valence so it doesn't work on the pgdk

00:21:16.799 --> 00:21:18.159
port of Emacs

00:21:18.159 --> 00:21:20.559
so and we also need people to pour ef to

00:21:20.559 --> 00:21:22.080
non-free operating systems

00:21:22.080 --> 00:21:25.600
including windows and mac os

00:21:25.600 --> 00:21:28.480
and that's because like debug is a linux

00:21:28.480 --> 00:21:30.080
specific feature so it doesn't really

00:21:30.080 --> 00:21:31.360
work on other platform

00:21:31.360 --> 00:21:33.039
we need to change replace it with some

00:21:33.039 --> 00:21:34.640
alternative and

00:21:34.640 --> 00:21:36.720
geographic scene somehow doesn't really

00:21:36.720 --> 00:21:38.640
work on mac os

00:21:38.640 --> 00:21:40.320
and there are many other to-do lists

00:21:40.320 --> 00:21:42.880
available so please have a look

00:21:42.880 --> 00:21:45.039
if and see it's anything you want to

00:21:45.039 --> 00:21:46.640
work on

00:21:46.640 --> 00:21:49.039
all right so since this is a

00:21:49.039 --> 00:21:51.120
pre-recorded talk I won't be able to do

00:21:51.120 --> 00:21:53.520
the q a real time in the video

00:21:53.520 --> 00:21:56.080
however I will be around on the

00:21:56.080 --> 00:21:57.200
collaborate pad

00:21:57.200 --> 00:22:00.559
and the irc imax con you must come

00:22:00.559 --> 00:22:01.360
questions

00:22:01.360 --> 00:22:04.240
to answer any questions it pops up and

00:22:04.240 --> 00:22:05.760
you can also submit an issue

00:22:05.760 --> 00:22:09.120
on the repo and you can check the wiki

00:22:09.120 --> 00:22:12.640
for some other guides and tricks

00:22:12.640 --> 00:22:15.039
all right thank you guys and hopefully

00:22:15.039 --> 00:22:16.000
you find the

00:22:16.000 --> 00:22:18.320
this year project very interesting and

00:22:18.320 --> 00:22:24.320
enjoy the rest of Emacs com 2020