forked from koreader/koreader
-
Notifications
You must be signed in to change notification settings - Fork 0
/
input.lua
executable file
·680 lines (610 loc) · 23.3 KB
/
input.lua
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
--[[--
An interface to get input events.
]]
local DEBUG = require("dbg")
local Event = require("ui/event")
local Key = require("device/key")
local GestureDetector = require("device/gesturedetector")
local TimeVal = require("ui/timeval")
local framebuffer = require("ffi/framebuffer")
local input = require("ffi/input")
local logger = require("logger")
local _ = require("gettext")
-- luacheck: push
-- luacheck: ignore
-- constants from <linux/input.h>
local EV_SYN = 0
local EV_KEY = 1
local EV_ABS = 3
local EV_MSC = 4
-- key press event values (KEY.value)
local EVENT_VALUE_KEY_PRESS = 1
local EVENT_VALUE_KEY_REPEAT = 2
local EVENT_VALUE_KEY_RELEASE = 0
-- Synchronization events (SYN.code).
local SYN_REPORT = 0
local SYN_CONFIG = 1
local SYN_MT_REPORT = 2
-- For single-touch events (ABS.code).
local ABS_X = 00
local ABS_Y = 01
local ABS_PRESSURE = 24
-- For multi-touch events (ABS.code).
local ABS_MT_SLOT = 47
local ABS_MT_TOUCH_MAJOR = 48
local ABS_MT_WIDTH_MAJOR = 50
local ABS_MT_POSITION_X = 53
local ABS_MT_POSITION_Y = 54
local ABS_MT_TRACKING_ID = 57
local ABS_MT_PRESSURE = 58
-- For Kindle Oasis orientation events (ABS.code)
-- the ABS code of orientation event will be adjusted to -24 from 24(ABS_PRESSURE)
-- as ABS_PRESSURE is also used to detect touch input in KOBO devices.
local ABS_OASIS_ORIENTATION = -24
local DEVICE_ORIENTATION_PORTRAIT_LEFT = 15
local DEVICE_ORIENTATION_PORTRAIT_RIGHT = 17
local DEVICE_ORIENTATION_PORTRAIT = 19
local DEVICE_ORIENTATION_PORTRAIT_ROTATED_LEFT = 16
local DEVICE_ORIENTATION_PORTRAIT_ROTATED_RIGHT = 18
local DEVICE_ORIENTATION_PORTRAIT_ROTATED = 20
local DEVICE_ORIENTATION_LANDSCAPE = 21
local DEVICE_ORIENTATION_LANDSCAPE_ROTATED = 22
-- luacheck: pop
local Input = {
-- this depends on keyboard layout and should be overridden:
event_map = {},
-- adapters are post processing functions that transform a given event to another event
event_map_adapter = {},
group = {
Cursor = { "Up", "Down", "Left", "Right" },
PgFwd = { "RPgFwd", "LPgFwd" },
PgBack = { "RPgBack", "LPgBack" },
Alphabet = {
"A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M",
"N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z"
},
AlphaNumeric = {
"0", "1", "2", "3", "4", "5", "6", "7", "8", "9",
"A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M",
"N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z"
},
Numeric = {
"0", "1", "2", "3", "4", "5", "6", "7", "8", "9"
},
Text = {
" ", ".", "/",
"0", "1", "2", "3", "4", "5", "6", "7", "8", "9",
"A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M",
"N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z"
},
Any = {
" ", ".", "/",
"0", "1", "2", "3", "4", "5", "6", "7", "8", "9",
"A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M",
"N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z",
"Up", "Down", "Left", "Right", "Press",
"Back", "Enter", "Sym", "AA", "Menu", "Home", "Del",
"LPgBack", "RPgBack", "LPgFwd", "RPgFwd"
},
},
rotation_map = {
[framebuffer.ORIENTATION_PORTRAIT] = {},
[framebuffer.ORIENTATION_LANDSCAPE] = { Up = "Right", Right = "Down", Down = "Left", Left = "Up" },
[framebuffer.ORIENTATION_PORTRAIT_ROTATED] = { Up = "Down", Right = "Left", Down = "Up", Left = "Right", LPgFwd = "LPgBack", LPgBack = "LPgFwd", RPgFwd = "RPgBack", RPgBack = "RPgFwd" },
[framebuffer.ORIENTATION_LANDSCAPE_ROTATED] = { Up = "Left", Right = "Up", Down = "Right", Left = "Down" , LPgFwd = "LPgBack", LPgBack = "LPgFwd", RPgFwd = "RPgBack", RPgBack = "RPgFwd" }
},
timer_callbacks = {},
disable_double_tap = true,
-- keyboard state:
modifiers = {
Alt = false,
Shift = false,
},
-- touch state:
cur_slot = 0,
MTSlots = {},
ev_slots = {
[0] = {
slot = 0,
}
},
gesture_detector = nil,
}
function Input:new(o)
o = o or {}
setmetatable(o, self)
self.__index = self
if o.init then o:init() end
return o
end
function Input:init()
self.gesture_detector = GestureDetector:new{
screen = self.device.screen,
input = self,
}
-- set up fake event map
self.event_map[10000] = "IntoSS" -- go into screen saver
self.event_map[10001] = "OutOfSS" -- go out of screen saver
self.event_map[10020] = "Charging"
self.event_map[10021] = "NotCharging"
-- user custom event map
local ok, custom_event_map = pcall(dofile, "custom.event.map.lua")
if ok then
for key, value in pairs(custom_event_map) do
self.event_map[key] = value
end
logger.info("loaded custom event map", custom_event_map)
end
end
--[[--
wrapper for FFI input open
Note that we adhere to the "." syntax here for compatibility.
TODO: clean up separation FFI/this
--]]
function Input.open(device, is_emu_events)
input.open(device, is_emu_events and 1 or 0)
end
--[[--
Different device models can implement their own hooks
and register them.
--]]
function Input:registerEventAdjustHook(hook, hook_params)
local old = self.eventAdjustHook
self.eventAdjustHook = function(this, ev)
old(this, ev)
hook(this, ev, hook_params)
end
end
function Input:registerGestureAdjustHook(hook, hook_params)
local old = self.gestureAdjustHook
self.gestureAdjustHook = function(this, ges)
old(this, ges)
hook(this, ges, hook_params)
end
end
function Input:eventAdjustHook(ev)
-- do nothing by default
end
function Input:gestureAdjustHook(ges)
-- do nothing by default
end
--- Catalog of predefined hooks.
function Input:adjustTouchSwitchXY(ev)
if ev.type == EV_ABS then
if ev.code == ABS_X then
ev.code = ABS_Y
elseif ev.code == ABS_Y then
ev.code = ABS_X
elseif ev.code == ABS_MT_POSITION_X then
ev.code = ABS_MT_POSITION_Y
elseif ev.code == ABS_MT_POSITION_Y then
ev.code = ABS_MT_POSITION_X
end
end
end
function Input:adjustTouchScale(ev, by)
if ev.type == EV_ABS then
if ev.code == ABS_X or ev.code == ABS_MT_POSITION_X then
ev.value = by.x * ev.value
end
if ev.code == ABS_Y or ev.code == ABS_MT_POSITION_Y then
ev.value = by.y * ev.value
end
end
end
function Input:adjustTouchMirrorX(ev, width)
if ev.type == EV_ABS
and (ev.code == ABS_X or ev.code == ABS_MT_POSITION_X) then
ev.value = width - ev.value
end
end
function Input:adjustTouchMirrorY(ev, height)
if ev.type == EV_ABS
and (ev.code == ABS_Y or ev.code == ABS_MT_POSITION_Y) then
ev.value = height - ev.value
end
end
function Input:adjustTouchTranslate(ev, by)
if ev.type == EV_ABS then
if ev.code == ABS_X or ev.code == ABS_MT_POSITION_X then
ev.value = by.x + ev.value
end
if ev.code == ABS_Y or ev.code == ABS_MT_POSITION_Y then
ev.value = by.y + ev.value
end
end
end
function Input:adjustKindleOasisOrientation(ev)
if ev.type == EV_ABS and ev.code == ABS_PRESSURE then
ev.code = ABS_OASIS_ORIENTATION
end
end
function Input:setTimeout(cb, tv_out)
local item = {
callback = cb,
deadline = tv_out,
}
table.insert(self.timer_callbacks, item)
table.sort(self.timer_callbacks, function(v1,v2)
return v1.deadline < v2.deadline
end)
end
function Input:handleKeyBoardEv(ev)
local keycode = self.event_map[ev.code]
if not keycode then
-- do not handle keypress for keys we don't know
return
end
if self.event_map_adapter[keycode] then
return self.event_map_adapter[keycode](ev)
end
-- take device rotation into account
if self.rotation_map[self.device.screen:getRotationMode()][keycode] then
keycode = self.rotation_map[self.device.screen:getRotationMode()][keycode]
end
if keycode == "IntoSS" or keycode == "OutOfSS"
or keycode == "Charging" or keycode == "NotCharging" then
return keycode
end
if keycode == "Power" then
-- Kobo generates Power keycode only, we need to decide whether it's
-- power-on or power-off ourselves.
if self.device.screen_saver_mode then
if ev.value == EVENT_VALUE_KEY_RELEASE then
return "Resume"
end
else
if ev.value == EVENT_VALUE_KEY_PRESS then
return "PowerPress"
elseif ev.value == EVENT_VALUE_KEY_RELEASE then
return "PowerRelease"
end
end
end
-- quit on Alt + F4
-- this is also emitted by the close event in SDL
if self.modifiers["Alt"] and keycode == "F4" then
local Device = require("frontend/device")
local UIManager = require("ui/uimanager")
local savequit_caller = nil
local save_quit = function()
Device:saveSettings()
UIManager:quit()
end
local FileManager = require("apps/filemanager/filemanager")
if FileManager.instance then
savequit_caller = FileManager.instance.menu
end
local ReaderUI = require("apps/reader/readerui")
local readerui_instance = ReaderUI:_getRunningInstance()
if readerui_instance then
savequit_caller = readerui_instance.menu
end
savequit_caller:exitOrRestart(save_quit)
end
-- handle modifier keys
if self.modifiers[keycode] ~= nil then
if ev.value == EVENT_VALUE_KEY_PRESS then
self.modifiers[keycode] = true
elseif ev.value == EVENT_VALUE_KEY_RELEASE then
self.modifiers[keycode] = false
end
return
end
local key = Key:new(keycode, self.modifiers)
if ev.value == EVENT_VALUE_KEY_PRESS then
return Event:new("KeyPress", key)
elseif ev.value == EVENT_VALUE_KEY_RELEASE then
return Event:new("KeyRelease", key)
end
end
function Input:handleMiscEv(ev)
-- should be handled by a misc event protocol plugin
end
--[[--
Parse each touch ev from kernel and build up tev.
tev will be sent to GestureDetector:feedEvent
Events for a single tap motion from Linux kernel (MT protocol B):
MT_TRACK_ID: 0
MT_X: 222
MT_Y: 207
SYN REPORT
MT_TRACK_ID: -1
SYN REPORT
Notice that each line is a single event.
From kernel document:
For type B devices, the kernel driver should associate a slot with each
identified contact, and use that slot to propagate changes for the contact.
Creation, replacement and destruction of contacts is achieved by modifying
the ABS_MT_TRACKING_ID of the associated slot. A non-negative tracking id
is interpreted as a contact, and the value -1 denotes an unused slot. A
tracking id not previously present is considered new, and a tracking id no
longer present is considered removed. Since only changes are propagated,
the full state of each initiated contact has to reside in the receiving
end. Upon receiving an MT event, one simply updates the appropriate
attribute of the current slot.
--]]
function Input:handleTouchEv(ev)
local switch_slot_to = function (value)
if self.cur_slot ~= value then
table.insert(self.MTSlots, self:getMtSlot(value))
end
self.cur_slot = value
end
if ev.type == EV_ABS then
if #self.MTSlots == 0 then
table.insert(self.MTSlots, self:getMtSlot(self.cur_slot))
end
if ev.code == ABS_MT_SLOT then
switch_slot_to(ev.value)
elseif ev.code == ABS_MT_TRACKING_ID then
if self.snow_protocol then
switch_slot_to(ev.value)
end
self:setCurrentMtSlot("id", ev.value)
elseif ev.code == ABS_MT_POSITION_X then
self:setCurrentMtSlot("x", ev.value)
elseif ev.code == ABS_MT_POSITION_Y then
self:setCurrentMtSlot("y", ev.value)
-- code to emulate mt protocol on kobos
-- we "confirm" abs_x, abs_y only when pressure ~= 0
elseif ev.code == ABS_X then
self:setCurrentMtSlot("abs_x", ev.value)
elseif ev.code == ABS_Y then
self:setCurrentMtSlot("abs_y", ev.value)
elseif ev.code == ABS_PRESSURE then
if ev.value ~= 0 then
self:setCurrentMtSlot("id", 1)
self:confirmAbsxy()
else
self:cleanAbsxy()
self:setCurrentMtSlot("id", -1)
end
end
elseif ev.type == EV_SYN then
if ev.code == SYN_REPORT then
for _, MTSlot in pairs(self.MTSlots) do
self:setMtSlot(MTSlot.slot, "timev", TimeVal:new(ev.time))
if self.snow_protocol then
-- if a slot appears in the current touch event, set "used"
self:setMtSlot(MTSlot.slot, "used", true)
end
end
if self.snow_protocol then
-- reset every slot that doesn't appear in the current touch event
-- (because on the H2O2, this is the only way we detect finger-up)
self.MTSlots = {}
for _, slot in pairs(self.ev_slots) do
table.insert(self.MTSlots, slot)
if not slot.used then
slot.id = -1
slot.timev = TimeVal:new(ev.time)
end
end
end
-- feed ev in all slots to state machine
local touch_ges = self.gesture_detector:feedEvent(self.MTSlots)
self.MTSlots = {}
if self.snow_protocol then
-- go through all the ev_slots and clear used
for _, slot in pairs(self.ev_slots) do
slot.used = nil
end
end
if touch_ges then
self:gestureAdjustHook(touch_ges)
return Event:new("Gesture",
self.gesture_detector:adjustGesCoordinate(touch_ges)
)
end
end
end
end
function Input:handleTouchEvPhoenix(ev)
-- Hack on handleTouchEV for the Kobo Aura
-- It seems to be using a custom protocol:
-- finger 0 down:
-- input_report_abs(elan_touch_data.input, ABS_MT_TRACKING_ID, 0);
-- input_report_abs(elan_touch_data.input, ABS_MT_TOUCH_MAJOR, 1);
-- input_report_abs(elan_touch_data.input, ABS_MT_WIDTH_MAJOR, 1);
-- input_report_abs(elan_touch_data.input, ABS_MT_POSITION_X, x1);
-- input_report_abs(elan_touch_data.input, ABS_MT_POSITION_Y, y1);
-- input_mt_sync (elan_touch_data.input);
-- finger 1 down:
-- input_report_abs(elan_touch_data.input, ABS_MT_TRACKING_ID, 1);
-- input_report_abs(elan_touch_data.input, ABS_MT_TOUCH_MAJOR, 1);
-- input_report_abs(elan_touch_data.input, ABS_MT_WIDTH_MAJOR, 1);
-- input_report_abs(elan_touch_data.input, ABS_MT_POSITION_X, x2);
-- input_report_abs(elan_touch_data.input, ABS_MT_POSITION_Y, y2);
-- input_mt_sync (elan_touch_data.input);
-- finger 0 up:
-- input_report_abs(elan_touch_data.input, ABS_MT_TRACKING_ID, 0);
-- input_report_abs(elan_touch_data.input, ABS_MT_TOUCH_MAJOR, 0);
-- input_report_abs(elan_touch_data.input, ABS_MT_WIDTH_MAJOR, 0);
-- input_report_abs(elan_touch_data.input, ABS_MT_POSITION_X, last_x);
-- input_report_abs(elan_touch_data.input, ABS_MT_POSITION_Y, last_y);
-- input_mt_sync (elan_touch_data.input);
-- finger 1 up:
-- input_report_abs(elan_touch_data.input, ABS_MT_TRACKING_ID, 1);
-- input_report_abs(elan_touch_data.input, ABS_MT_TOUCH_MAJOR, 0);
-- input_report_abs(elan_touch_data.input, ABS_MT_WIDTH_MAJOR, 0);
-- input_report_abs(elan_touch_data.input, ABS_MT_POSITION_X, last_x2);
-- input_report_abs(elan_touch_data.input, ABS_MT_POSITION_Y, last_y2);
-- input_mt_sync (elan_touch_data.input);
if ev.type == EV_ABS then
if #self.MTSlots == 0 then
table.insert(self.MTSlots, self:getMtSlot(self.cur_slot))
end
if ev.code == ABS_MT_TRACKING_ID then
if self.cur_slot ~= ev.value then
table.insert(self.MTSlots, self:getMtSlot(ev.value))
end
self.cur_slot = ev.value
self:setCurrentMtSlot("id", ev.value)
elseif ev.code == ABS_MT_TOUCH_MAJOR and ev.value == 0 then
self:setCurrentMtSlot("id", -1)
elseif ev.code == ABS_MT_POSITION_X then
self:setCurrentMtSlot("x", ev.value)
elseif ev.code == ABS_MT_POSITION_Y then
self:setCurrentMtSlot("y", ev.value)
end
elseif ev.type == EV_SYN then
if ev.code == SYN_REPORT then
for _, MTSlot in pairs(self.MTSlots) do
self:setMtSlot(MTSlot.slot, "timev", TimeVal:new(ev.time))
end
-- feed ev in all slots to state machine
local touch_ges = self.gesture_detector:feedEvent(self.MTSlots)
self.MTSlots = {}
if touch_ges then
self:gestureAdjustHook(touch_ges)
return Event:new("Gesture",
self.gesture_detector:adjustGesCoordinate(touch_ges)
)
end
end
end
end
function Input:handleOasisOrientationEv(ev)
local rotation_mode, screen_mode
if ev.value == DEVICE_ORIENTATION_PORTRAIT
or ev.value == DEVICE_ORIENTATION_PORTRAIT_LEFT
or ev.value == DEVICE_ORIENTATION_PORTRAIT_RIGHT then
rotation_mode = framebuffer.ORIENTATION_PORTRAIT
screen_mode = 'portrait'
elseif ev.value == DEVICE_ORIENTATION_LANDSCAPE then
rotation_mode = framebuffer.ORIENTATION_LANDSCAPE
screen_mode = 'landscape'
elseif ev.value == DEVICE_ORIENTATION_PORTRAIT_ROTATED
or ev.value == DEVICE_ORIENTATION_PORTRAIT_ROTATED_LEFT
or ev.value == DEVICE_ORIENTATION_PORTRAIT_ROTATED_RIGHT then
rotation_mode = framebuffer.ORIENTATION_PORTRAIT_ROTATED
screen_mode = 'portrait'
elseif ev.value == DEVICE_ORIENTATION_LANDSCAPE_ROTATED then
rotation_mode = framebuffer.ORIENTATION_LANDSCAPE_ROTATED
screen_mode = 'landscape'
end
local old_rotation_mode = self.device.screen:getRotationMode()
local old_screen_mode = self.device.screen:getScreenMode()
if rotation_mode ~= old_rotation_mode and screen_mode == old_screen_mode then
self.device.screen:setRotationMode(rotation_mode)
local UIManager = require("ui/uimanager")
UIManager:onRotation()
end
end
-- helpers for touch event data management:
function Input:setMtSlot(slot, key, val)
if not self.ev_slots[slot] then
self.ev_slots[slot] = {
slot = slot
}
end
self.ev_slots[slot][key] = val
end
function Input:setCurrentMtSlot(key, val)
self:setMtSlot(self.cur_slot, key, val)
end
function Input:getMtSlot(slot)
return self.ev_slots[slot]
end
function Input:getCurrentMtSlot()
return self:getMtSlot(self.cur_slot)
end
function Input:confirmAbsxy()
self:setCurrentMtSlot("x", self.ev_slots[self.cur_slot]["abs_x"])
self:setCurrentMtSlot("y", self.ev_slots[self.cur_slot]["abs_y"])
end
function Input:cleanAbsxy()
self:setCurrentMtSlot("abs_x", nil)
self:setCurrentMtSlot("abs_y", nil)
end
function Input:isEvKeyPress(ev)
return ev.value == EVENT_VALUE_KEY_PRESS
end
function Input:isEvKeyRelease(ev)
return ev.value == EVENT_VALUE_KEY_RELEASE
end
--- Main event handling.
function Input:waitEvent(timeout_us)
local ok, ev
-- wrapper for input.waitForEvents that will retry for some cases
while true do
if #self.timer_callbacks > 0 then
local wait_deadline = TimeVal:now() + TimeVal:new{
usec = timeout_us
}
-- we don't block if there is any timer, set wait to 10us
while #self.timer_callbacks > 0 do
ok, ev = pcall(input.waitForEvent, 100)
if ok then break end
local tv_now = TimeVal:now()
if (not timeout_us or tv_now < wait_deadline) then
-- check whether timer is up
if tv_now >= self.timer_callbacks[1].deadline then
local touch_ges = self.timer_callbacks[1].callback()
table.remove(self.timer_callbacks, 1)
if touch_ges then
-- Do we really need to clear all setTimeout after
-- decided a gesture? FIXME
self.timer_callbacks = {}
self:gestureAdjustHook(touch_ges)
return Event:new("Gesture",
self.gesture_detector:adjustGesCoordinate(touch_ges)
)
end -- EOF if touch_ges
end -- EOF if deadline reached
else
break
end -- EOF if not exceed wait timeout
end -- while #timer_callbacks > 0
else
ok, ev = pcall(input.waitForEvent, timeout_us)
end -- EOF if #timer_callbacks > 0
if ok then
break
end
-- ev does contain an error message:
local timeout_err_msg = "Waiting for input failed: timeout\n"
-- ev may not be equal to timeout_err_msg, but it may ends with it
-- ("./ffi/SDL2_0.lua:110: Waiting for input failed: timeout" on the emulator)
if ev and ev.sub and ev:sub(-timeout_err_msg:len()) == timeout_err_msg then
-- don't report an error on timeout
ev = nil
break
elseif ev == "application forced to quit" then
-- TODO: return an event that can be handled
os.exit(0)
end
logger.warn("got error waiting for events:", ev)
if ev ~= "Waiting for input failed: 4\n" then
-- we only abort if the error is not EINTR
break
end
end
if ok and ev then
if DEBUG.is_on and ev then
DEBUG:logEv(ev)
logger.dbg(string.format(
"%s event => type: %d, code: %d(%s), value: %d, time: %d.%d",
ev.type == EV_KEY and "key" or "input",
ev.type, ev.code, self.event_map[ev.code], ev.value,
ev.time.sec, ev.time.usec))
end
self:eventAdjustHook(ev)
if ev.type == EV_KEY then
return self:handleKeyBoardEv(ev)
elseif ev.type == EV_ABS and ev.code == ABS_OASIS_ORIENTATION then
return self:handleOasisOrientationEv(ev)
elseif ev.type == EV_ABS or ev.type == EV_SYN then
return self:handleTouchEv(ev)
elseif ev.type == EV_MSC then
return self:handleMiscEv(ev)
else
-- some other kind of event that we do not know yet
return Event:new("GenericInput", ev)
end
elseif not ok and ev then
return Event:new("InputError", ev)
end
end
return Input