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@ -122,7 +122,13 @@ end
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an interface to get input events
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]]
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Input = {
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event_map = {
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event_map = {},
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rotation = 0,
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timer_callbacks = {},
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}
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function Input:initKeyMap()
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self.event_map = {
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[2] = "1", [3] = "2", [4] = "3", [5] = "4", [6] = "5", [7] = "6", [8] = "7", [9] = "8", [10] = "9", [11] = "0",
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[16] = "Q", [17] = "W", [18] = "E", [19] = "R", [20] = "T", [21] = "Y", [22] = "U", [23] = "I", [24] = "O", [25] = "P",
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[30] = "A", [31] = "S", [32] = "D", [33] = "F", [34] = "G", [35] = "H", [36] = "J", [37] = "K", [38] = "L", [14] = "Del",
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@ -157,13 +163,8 @@ Input = {
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[191] = "RPgFwd", -- K[3] & k[4]
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[193] = "LPgFwd", -- K[3] only
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[194] = "Press", -- K[3] & k[4]
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[10000] = "IntoSS", -- go into screen saver
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[10001] = "OutOfSS", -- go out of screen saver
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[10020] = "Charging",
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[10021] = "NotCharging",
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},
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sdl_event_map = {
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}
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self.sdl_event_map = {
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[10] = "1", [11] = "2", [12] = "3", [13] = "4", [14] = "5", [15] = "6", [16] = "7", [17] = "8", [18] = "9", [19] = "0",
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[24] = "Q", [25] = "W", [26] = "E", [27] = "R", [28] = "T", [29] = "Y", [30] = "U", [31] = "I", [32] = "O", [33] = "P",
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[38] = "A", [39] = "S", [40] = "D", [41] = "F", [42] = "G", [43] = "H", [44] = "J", [45] = "K", [46] = "L",
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@ -192,21 +193,19 @@ Input = {
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[116] = "Down", -- arrow down
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[117] = "RPgFwd", -- normal PageDown
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[119] = "Del", -- Delete
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},
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rotation = 0,
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rotation_map = {
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}
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self.rotation_map = {
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[0] = {},
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[1] = { Up = "Right", Right = "Down", Down = "Left", Left = "Up" },
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[2] = { Up = "Down", Right = "Left", Down = "Up", Left = "Right" },
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[3] = { Up = "Left", Right = "Up", Down = "Right", Left = "Down" }
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},
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modifiers = {
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}
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self.modifiers = {
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Alt = false,
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Shift = false
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},
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}
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-- these groups are just helpers:
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group = {
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self.group = {
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Cursor = { "Up", "Down", "Left", "Right" },
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PgFwd = { "RPgFwd", "LPgFwd" },
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PgBack = { "RPgBack", "LPgBack" },
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@ -237,13 +236,31 @@ Input = {
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"Back", "Enter", "Sym", "AA", "Menu", "Home", "Del",
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"LPgBack", "RPgBack", "LPgFwd", "RPgFwd"
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}
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},
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}
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end
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timer_callbacks = {},
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}
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function Input:initTouchState()
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self.cur_ev = {}
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end
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function Input:init()
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-- Screen module must have been initilized by now.
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self.rotation = Screen.fb:getOrientation()
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if Device:hasKeyboard() then
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self:initKeyMap()
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end
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if Device:isTouchDevice() then
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self:initTouchState()
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end
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-- set up fake event map
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self.event_map[10000] = "IntoSS" -- go into screen saver
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self.event_map[10001] = "OutOfSS" -- go out of screen saver
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self.event_map[10020] = "Charging"
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self.event_map[10021] = "NotCharging"
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if util.isEmulated()==1 then
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self:initKeyMap()
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os.remove("emu_event")
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os.execute("mkfifo emu_event")
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input.open("emu_event")
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@ -327,6 +344,86 @@ function Input:setTimeout(cb, tv_out)
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end
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end
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function Input:handleKeyBoardEv(ev)
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local keycode = self.event_map[ev.code]
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if not keycode then
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-- do not handle keypress for keys we don't know
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return
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end
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-- take device rotation into account
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if self.rotation_map[self.rotation][keycode] then
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keycode = self.rotation_map[self.rotation][keycode]
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end
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if keycode == "IntoSS" or keycode == "OutOfSS"
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or keycode == "Charging" or keycode == "NotCharging" then
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return keycode
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end
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-- handle modifier keys
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if self.modifiers[keycode] ~= nil then
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if ev.value == EVENT_VALUE_KEY_PRESS then
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self.modifiers[keycode] = true
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elseif ev.value == EVENT_VALUE_KEY_RELEASE then
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self.modifiers[keycode] = false
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end
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return
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end
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local key = Key:new(keycode, self.modifiers)
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if ev.value == EVENT_VALUE_KEY_PRESS then
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return Event:new("KeyPress", key)
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elseif ev.value == EVENT_VALUE_KEY_RELEASE then
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return Event:new("KeyRelease", key)
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end
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end
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--[[
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parse each touch ev from kernel and build up tev.
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tev will be sent to GestureDetector:feedEvent
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Events for a single tap motion from Linux kernel (MT protocol B):
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MT_TRACK_ID: 0
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MT_X: 222
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MT_Y: 207
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SYN REPORT
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MT_TRACK_ID: -1
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SYN REPORT
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Notice that each line is a single event.
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--]]
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function Input:handleTouchEv(ev)
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if ev.type == EV_SYN then
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if ev.code == SYN_REPORT then
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self.cur_ev.timev = TimeVal:new(ev.time)
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--self.cur_x = self.cur_ev.x or self.cur_x
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--self.cur_y = self.cur_ev.y or self.cur_y
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-- send ev to state machine
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local touch_ges = GestureDetector:feedEvent(self.cur_ev)
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--self.last_ev_timev = self.cur_ev.timev
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--self.cur_ev = {}
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if touch_ges then
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return Event:new("Gesture",
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Screen:adjustGesCoordinate(touch_ges)
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)
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end
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end
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elseif ev.type == EV_ABS then
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if ev.code == ABS_MT_SLOT then
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self.cur_ev.slot = ev.value
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elseif ev.code == ABS_MT_TRACKING_ID then
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self.cur_ev.id = ev.value
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elseif ev.code == ABS_MT_POSITION_X then
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self.cur_ev.x = ev.value
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elseif ev.code == ABS_MT_POSITION_Y then
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self.cur_ev.y = ev.value
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end
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end
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end
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function Input:waitEvent(timeout_us, timeout_s)
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-- wrapper for input.waitForEvents that will retry for some cases
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local ok, ev
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@ -344,14 +441,16 @@ function Input:waitEvent(timeout_us, timeout_s)
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if ((not timeout_us and not timeout_s) or tv_now < wait_deadline) then
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-- check whether timer is up
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if tv_now >= self.timer_callbacks[1].deadline then
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local ges = self.timer_callbacks[1].callback()
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local touch_ges = self.timer_callbacks[1].callback()
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table.remove(self.timer_callbacks, 1)
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if ges then
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if touch_ges then
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-- Do we really need to clear all setTimeout after
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-- decided a gesture? FIXME
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Input.timer_callbacks = {}
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return Event:new("Gesture", ges)
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end -- EOF if ges
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return Event:new("Gesture",
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Screen:adjustGesCoordinate(touch_ges)
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)
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end -- EOF if touch_ges
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end -- EOF if deadline reached
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else
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break
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@ -376,47 +475,13 @@ function Input:waitEvent(timeout_us, timeout_s)
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break
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end
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end
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if ok and ev then
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ev = self:eventAdjustHook(ev)
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if ev.type == EV_KEY then
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local keycode = self.event_map[ev.code]
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if not keycode then
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-- do not handle keypress for keys we don't know
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return
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end
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-- take device rotation into account
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if self.rotation_map[self.rotation][keycode] then
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keycode = self.rotation_map[self.rotation][keycode]
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end
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if keycode == "IntoSS" or keycode == "OutOfSS"
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or keycode == "Charging" or keycode == "NotCharging" then
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return keycode
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end
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-- handle modifier keys
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if self.modifiers[keycode] ~= nil then
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if ev.value == EVENT_VALUE_KEY_PRESS then
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self.modifiers[keycode] = true
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elseif ev.value == EVENT_VALUE_KEY_RELEASE then
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self.modifiers[keycode] = false
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end
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return
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end
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local key = Key:new(keycode, self.modifiers)
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if ev.value == EVENT_VALUE_KEY_PRESS then
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return Event:new("KeyPress", key)
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elseif ev.value == EVENT_VALUE_KEY_RELEASE then
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return Event:new("KeyRelease", key)
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end
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return self:handleKeyBoardEv(ev)
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elseif ev.type == EV_ABS or ev.type == EV_SYN then
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local touch_ges = GestureDetector:feedEvent(ev)
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if touch_ges then
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return Event:new("Gesture", touch_ges)
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end
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return self:handleTouchEv(ev)
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else
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-- some other kind of event that we do not know yet
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return Event:new("GenericInput", ev)
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Qingping Hou
11 years ago