mirror of
https://github.com/koreader/koreader
synced 2024-11-13 19:11:25 +00:00
465 lines
12 KiB
Lua
465 lines
12 KiB
Lua
require "ui/event"
|
|
require "ui/device"
|
|
require "ui/time"
|
|
require "ui/gesturedetector"
|
|
require "settings"
|
|
|
|
-- constants from <linux/input.h>
|
|
EV_SYN = 0
|
|
EV_KEY = 1
|
|
EV_ABS = 3
|
|
|
|
-- key press event values (KEY.value)
|
|
EVENT_VALUE_KEY_PRESS = 1
|
|
EVENT_VALUE_KEY_REPEAT = 2
|
|
EVENT_VALUE_KEY_RELEASE = 0
|
|
|
|
-- Synchronization events (SYN.code).
|
|
SYN_REPORT = 0
|
|
SYN_CONFIG = 1
|
|
SYN_MT_REPORT = 2
|
|
|
|
-- For multi-touch events (ABS.code).
|
|
ABS_MT_SLOT = 47
|
|
ABS_MT_POSITION_X = 53
|
|
ABS_MT_POSITION_Y = 54
|
|
ABS_MT_TRACKING_ID = 57
|
|
ABS_MT_PRESSURE = 58
|
|
|
|
|
|
|
|
--[[
|
|
an interface for key presses
|
|
]]
|
|
|
|
Key = {}
|
|
|
|
function Key:new(key, modifiers)
|
|
local o = { key = key, modifiers = modifiers }
|
|
|
|
-- we're a hash map, too
|
|
o[key] = true
|
|
for mod, pressed in pairs(modifiers) do
|
|
if pressed then
|
|
o[mod] = true
|
|
end
|
|
end
|
|
|
|
setmetatable(o, self)
|
|
self.__index = self
|
|
return o
|
|
end
|
|
|
|
function Key:__tostring()
|
|
return table.concat(self:getSequence(), "-")
|
|
end
|
|
|
|
--[[
|
|
get a sequence that can be matched against later
|
|
|
|
use this to let the user press a sequence and then
|
|
store this as configuration data (configurable
|
|
shortcuts)
|
|
]]
|
|
function Key:getSequence()
|
|
local seq = {}
|
|
for mod, pressed in pairs(self.modifiers) do
|
|
if pressed then
|
|
table.insert(seq, mod)
|
|
end
|
|
end
|
|
table.insert(seq, self.key)
|
|
end
|
|
|
|
--[[
|
|
this will match a key against a sequence
|
|
|
|
the sequence should be a table of key names that
|
|
must be pressed together to match.
|
|
if an entry in this table is itself a table, at
|
|
least one key in this table must match.
|
|
|
|
E.g.:
|
|
|
|
Key:match({ "Alt", "K" }) -- match Alt-K
|
|
Key:match({ "Alt", { "K", "L" }}) -- match Alt-K _or_ Alt-L
|
|
]]
|
|
function Key:match(sequence)
|
|
local mod_keys = {} -- a hash table for checked modifiers
|
|
for _, key in ipairs(sequence) do
|
|
if type(key) == "table" then
|
|
local found = false
|
|
for _, variant in ipairs(key) do
|
|
if self[variant] then
|
|
found = true
|
|
break
|
|
end
|
|
end
|
|
if not found then
|
|
-- one of the needed keys is not pressed
|
|
return false
|
|
end
|
|
elseif not self[key] then
|
|
-- needed key not pressed
|
|
return false
|
|
elseif self.modifiers[key] ~= nil then
|
|
-- checked key is a modifier key
|
|
mod_keys[key] = true
|
|
end
|
|
end
|
|
|
|
for mod, pressed in pairs(self.modifiers) do
|
|
if pressed and not mod_keys[mod] then
|
|
-- additional modifier keys are pressed, don't match
|
|
return false
|
|
end
|
|
end
|
|
|
|
return true
|
|
end
|
|
|
|
--[[
|
|
an interface to get input events
|
|
]]
|
|
Input = {
|
|
event_map = {
|
|
[2] = "1", [3] = "2", [4] = "3", [5] = "4", [6] = "5", [7] = "6", [8] = "7", [9] = "8", [10] = "9", [11] = "0",
|
|
[16] = "Q", [17] = "W", [18] = "E", [19] = "R", [20] = "T", [21] = "Y", [22] = "U", [23] = "I", [24] = "O", [25] = "P",
|
|
[30] = "A", [31] = "S", [32] = "D", [33] = "F", [34] = "G", [35] = "H", [36] = "J", [37] = "K", [38] = "L", [14] = "Del",
|
|
[44] = "Z", [45] = "X", [46] = "C", [47] = "V", [48] = "B", [49] = "N", [50] = "M", [52] = ".", [53] = "/", -- only KDX
|
|
|
|
[28] = "Enter",
|
|
[29] = "ScreenKB", -- K[4]
|
|
[42] = "Shift",
|
|
[56] = "Alt",
|
|
[57] = " ",
|
|
[90] = "AA", -- KDX
|
|
[91] = "Back", -- KDX
|
|
[92] = "Press", -- KDX
|
|
[94] = "Sym", -- KDX
|
|
[98] = "Home", -- KDX
|
|
[102] = "Home", -- K[3] & k[4]
|
|
[104] = "LPgBack", -- K[3] only
|
|
[103] = "Up", -- K[3] & k[4]
|
|
[105] = "Left",
|
|
[106] = "Right",
|
|
[108] = "Down", -- K[3] & k[4]
|
|
[109] = "RPgBack",
|
|
[114] = "VMinus",
|
|
[115] = "VPlus",
|
|
[122] = "Up", -- KDX
|
|
[123] = "Down", -- KDX
|
|
[124] = "RPgFwd", -- KDX
|
|
[126] = "Sym", -- K[3]
|
|
[139] = "Menu",
|
|
[158] = "Back", -- K[3] & K[4]
|
|
[190] = "AA", -- K[3]
|
|
[191] = "RPgFwd", -- K[3] & k[4]
|
|
[193] = "LPgFwd", -- K[3] only
|
|
[194] = "Press", -- K[3] & k[4]
|
|
|
|
[10000] = "IntoSS", -- go into screen saver
|
|
[10001] = "OutOfSS", -- go out of screen saver
|
|
[10020] = "Charging",
|
|
[10021] = "NotCharging",
|
|
},
|
|
sdl_event_map = {
|
|
[10] = "1", [11] = "2", [12] = "3", [13] = "4", [14] = "5", [15] = "6", [16] = "7", [17] = "8", [18] = "9", [19] = "0",
|
|
[24] = "Q", [25] = "W", [26] = "E", [27] = "R", [28] = "T", [29] = "Y", [30] = "U", [31] = "I", [32] = "O", [33] = "P",
|
|
[38] = "A", [39] = "S", [40] = "D", [41] = "F", [42] = "G", [43] = "H", [44] = "J", [45] = "K", [46] = "L",
|
|
[52] = "Z", [53] = "X", [54] = "C", [55] = "V", [56] = "B", [57] = "N", [58] = "M",
|
|
|
|
[22] = "Back", -- Backspace
|
|
[36] = "Enter", -- Enter
|
|
[50] = "Shift", -- left shift
|
|
[60] = ".",
|
|
[61] = "/",
|
|
[62] = "Sym", -- right shift key
|
|
[64] = "Alt", -- left alt
|
|
[65] = " ", -- Spacebar
|
|
[67] = "Menu", -- F[1]
|
|
[72] = "LPgBack", -- F[6]
|
|
[73] = "LPgFwd", -- F[7]
|
|
[95] = "VPlus", -- F[11]
|
|
[96] = "VMinus", -- F[12]
|
|
[105] = "AA", -- right alt key
|
|
[110] = "Home", -- Home
|
|
[111] = "Up", -- arrow up
|
|
[112] = "RPgBack", -- normal PageUp
|
|
[113] = "Left", -- arrow left
|
|
[114] = "Right", -- arrow right
|
|
[115] = "Press", -- End (above arrows)
|
|
[116] = "Down", -- arrow down
|
|
[117] = "RPgFwd", -- normal PageDown
|
|
[119] = "Del", -- Delete
|
|
},
|
|
rotation = 0,
|
|
rotation_map = {
|
|
[0] = {},
|
|
[1] = { Up = "Right", Right = "Down", Down = "Left", Left = "Up" },
|
|
[2] = { Up = "Down", Right = "Left", Down = "Up", Left = "Right" },
|
|
[3] = { Up = "Left", Right = "Up", Down = "Right", Left = "Down" }
|
|
},
|
|
modifiers = {
|
|
Alt = false,
|
|
Shift = false
|
|
},
|
|
|
|
-- these groups are just helpers:
|
|
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"
|
|
}
|
|
},
|
|
|
|
timer_callbacks = {},
|
|
}
|
|
|
|
function Input:init()
|
|
if util.isEmulated()==1 then
|
|
os.remove("emu_event")
|
|
os.execute("mkfifo emu_event")
|
|
input.open("emu_event")
|
|
-- SDL key codes
|
|
self.event_map = self.sdl_event_map
|
|
else
|
|
input.open("fake_events")
|
|
local dev_mod = Device:getModel()
|
|
if dev_mod ~= "KindleTouch" then
|
|
-- event0 in KindleTouch is "WM8962 Beep Generator" (useless)
|
|
input.open("/dev/input/event0")
|
|
end
|
|
if dev_mod ~= "KindleTouch" and dev_mod ~= "KindlePaperWhite" then
|
|
-- event1 in KindleTouch is "imx-yoshi Headset" (useless)
|
|
-- and we don't have event1 in KindlePaperWhite
|
|
input.open("/dev/input/event1")
|
|
end
|
|
if dev_mod == "KindlePaperWhite" then
|
|
print("Auto-detected Kindle PaperWhite")
|
|
elseif dev_mod == "KindleTouch" then
|
|
input.open("/dev/input/event2") -- Home button
|
|
input.open("/dev/input/event3") -- touchscreen
|
|
-- update event hook
|
|
function Input:eventAdjustHook(ev)
|
|
if ev.type == EV_ABS then
|
|
--@TODO handle coordinates properly after
|
|
--screen rotate. (houqp)
|
|
if ev.code == ABS_MT_POSITION_X then
|
|
ev.value = math.round(ev.value * (600/4095))
|
|
elseif ev.code == ABS_MT_POSITION_Y then
|
|
ev.value = math.round(ev.value * (800/4095))
|
|
end
|
|
end
|
|
return ev
|
|
end
|
|
print("Auto-detected Kindle Touch")
|
|
elseif dev_mod == "Kindle4" then
|
|
print("Auto-detected Kindle 4")
|
|
self:adjustKindle4EventMap()
|
|
elseif dev_mod == "Kindle3" then
|
|
input.open("/dev/input/event2")
|
|
print("Auto-detected Kindle 3")
|
|
elseif dev_mod == "KindleDXG" then
|
|
print("Auto-detected Kindle DXG")
|
|
elseif dev_mod == "Kindle2" then
|
|
print("Auto-detected Kindle 2")
|
|
else
|
|
print("Not supported device model!")
|
|
os.exit(-1)
|
|
end
|
|
end
|
|
end
|
|
|
|
--[[
|
|
different device models shoudl overload this method if
|
|
necessary to make event compatible to KPV.
|
|
--]]
|
|
function Input:eventAdjustHook(ev)
|
|
-- do nothing by default
|
|
return ev
|
|
end
|
|
|
|
function Input:adjustKindle4EventMap()
|
|
self.event_map[193] = "LPgBack"
|
|
self.event_map[104] = "LPgFwd"
|
|
end
|
|
|
|
function Input:setTimeout(cb, tv_out)
|
|
local item = {
|
|
callback = cb,
|
|
deadline = tv_out,
|
|
}
|
|
for k,v in ipairs(self.timer_callbacks) do
|
|
if v.deadline > tv_out then
|
|
table.insert(self.timer_callbacks, k, item)
|
|
break
|
|
end
|
|
end
|
|
if #self.timer_callbacks <= 0 then
|
|
self.timer_callbacks[1] = item
|
|
end
|
|
end
|
|
|
|
function Input:waitEvent(timeout_us, timeout_s)
|
|
-- wrapper for input.waitForEvents that will retry for some cases
|
|
local ok, ev
|
|
local wait_deadline = TimeVal:now() + TimeVal:new{
|
|
sec = timeout_s,
|
|
usec = timeout_us
|
|
}
|
|
while true do
|
|
if #self.timer_callbacks > 0 then
|
|
-- 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 and not timeout_s) or tv_now < wait_deadline) then
|
|
-- check whether timer is up
|
|
if tv_now >= self.timer_callbacks[1].deadline then
|
|
local ges = self.timer_callbacks[1].callback()
|
|
table.remove(self.timer_callbacks, 1)
|
|
if ges then
|
|
-- Do we really need to clear all setTimeout after
|
|
-- decided a gesture? FIXME
|
|
Input.timer_callbacks = {}
|
|
return Event:new("Gesture", ges)
|
|
end -- EOF if 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
|
|
if ev == "Waiting for input failed: timeout\n" then
|
|
-- don't report an error on timeout
|
|
ev = nil
|
|
break
|
|
elseif ev == "application forced to quit" then
|
|
os.exit(0)
|
|
end
|
|
--DEBUG("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
|
|
ev = self:eventAdjustHook(ev)
|
|
if ev.type == EV_KEY then
|
|
local keycode = self.event_map[ev.code]
|
|
if not keycode then
|
|
-- do not handle keypress for keys we don't know
|
|
return
|
|
end
|
|
|
|
-- take device rotation into account
|
|
if self.rotation_map[self.rotation][keycode] then
|
|
keycode = self.rotation_map[self.rotation][keycode]
|
|
end
|
|
|
|
if keycode == "IntoSS" then
|
|
Device:intoScreenSaver()
|
|
return
|
|
elseif keycode == "OutOfSS" then
|
|
Device:outofScreenSaver()
|
|
return
|
|
elseif keycode == "Charging" then
|
|
Device:usbPlugIn()
|
|
return
|
|
elseif keycode == "NotCharging" then
|
|
Device:usbPlugOut()
|
|
return
|
|
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
|
|
elseif ev.type == EV_ABS or ev.type == EV_SYN then
|
|
local touch_ges = GestureDetector:feedEvent(ev)
|
|
if touch_ges then
|
|
return Event:new("Gesture", touch_ges)
|
|
end
|
|
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
|
|
|
|
--[[
|
|
helper function for formatting sequence definitions for output
|
|
]]
|
|
function Input:sequenceToString(sequence)
|
|
local modifiers = {}
|
|
local keystring = {"",""} -- first entries reserved for modifier specification
|
|
for _, key in ipairs(sequence) do
|
|
if type(key) == "table" then
|
|
local alternatives = {}
|
|
for _, alternative in ipairs(key) do
|
|
table.insert(alternatives, alternative)
|
|
end
|
|
table.insert(keystring, "{")
|
|
table.insert(keystring, table.concat(alternatives, "|"))
|
|
table.insert(keystring, "}")
|
|
elseif self.modifiers[key] ~= nil then
|
|
table.insert(modifiers, key)
|
|
else
|
|
table.insert(keystring, key)
|
|
end
|
|
end
|
|
if #modifiers then
|
|
keystring[1] = table.concat(modifiers, "-")
|
|
keystring[2] = "-"
|
|
end
|
|
return table.concat(keystring)
|
|
end
|