replaces namespace fenrir with fenrirscreenreader
This commit is contained in:
chrys
308
src/fenrirscreenreader/inputDriver/evdevDriver.py
Normal file
308
src/fenrirscreenreader/inputDriver/evdevDriver.py
Normal file
@ -0,0 +1,308 @@
|
||||
#!/bin/python
|
||||
# -*- coding: utf-8 -*-
|
||||
|
||||
# Fenrir TTY screen reader
|
||||
# By Chrys, Storm Dragon, and contributers.
|
||||
|
||||
_evdevAvailable = False
|
||||
_udevAvailable = False
|
||||
_evdevAvailableError = ''
|
||||
_udevAvailableError = ''
|
||||
try:
|
||||
import evdev
|
||||
from evdev import InputDevice, UInput
|
||||
_evdevAvailable = True
|
||||
|
||||
except Exception as e:
|
||||
_evdevAvailableError = str(e)
|
||||
|
||||
try:
|
||||
import pyudev
|
||||
_udevAvailable = True
|
||||
except Exception as e:
|
||||
_udevAvailableError = str(e)
|
||||
|
||||
import time
|
||||
from select import select
|
||||
import multiprocessing
|
||||
from multiprocessing.sharedctypes import Value
|
||||
from ctypes import c_bool
|
||||
|
||||
from fenrirscreenreader.core.eventData import fenrirEventType
|
||||
from fenrirscreenreader.core import inputData
|
||||
from fenrirscreenreader.core import debug
|
||||
from fenrirscreenreader.core.inputDriver import inputDriver
|
||||
|
||||
class driver(inputDriver):
|
||||
def __init__(self):
|
||||
inputDriver.__init__(self)
|
||||
self._manager = multiprocessing.Manager()
|
||||
self.iDevices = {}
|
||||
self.iDevicesFD = self._manager.list()
|
||||
self.uDevices = {}
|
||||
self.iDeviceNo = 0
|
||||
self.watchDog = Value(c_bool, True)
|
||||
def initialize(self, environment):
|
||||
self.env = environment
|
||||
global _evdevAvailable
|
||||
global _udevAvailable
|
||||
self._initialized = _evdevAvailable
|
||||
if not self._initialized:
|
||||
global _evdevAvailableError
|
||||
self.env['runtime']['debug'].writeDebugOut('InputDriver: ' + _evdevAvailableError,debug.debugLevel.ERROR)
|
||||
return
|
||||
if _udevAvailable:
|
||||
self.env['runtime']['processManager'].addCustomEventThread(self.plugInputDeviceWatchdogUdev)
|
||||
else:
|
||||
self.env['runtime']['processManager'].addSimpleEventThread(fenrirEventType.PlugInputDevice, self.plugInputDeviceWatchdogTimer)
|
||||
self.env['runtime']['processManager'].addCustomEventThread(self.inputWatchdog)
|
||||
def plugInputDeviceWatchdogUdev(self,active , eventQueue):
|
||||
context = pyudev.Context()
|
||||
monitor = pyudev.Monitor.from_netlink(context)
|
||||
monitor.filter_by(subsystem='input')
|
||||
monitor.start()
|
||||
while active.value:
|
||||
devices = monitor.poll(2)
|
||||
if devices:
|
||||
while monitor.poll(0.5):
|
||||
time.sleep(0.2)
|
||||
eventQueue.put({"Type":fenrirEventType.PlugInputDevice,"Data":None})
|
||||
return time.time()
|
||||
def plugInputDeviceWatchdogTimer(self, active):
|
||||
time.sleep(2.5)
|
||||
return time.time()
|
||||
|
||||
def inputWatchdog(self,active , eventQueue):
|
||||
while active.value:
|
||||
r, w, x = select(self.iDevices, [], [], 0.5)
|
||||
for fd in r:
|
||||
event = None
|
||||
foreward = False
|
||||
eventFired = False
|
||||
try:
|
||||
event = self.iDevices[fd].read_one()
|
||||
except:
|
||||
self.removeDevice(fd)
|
||||
while(event):
|
||||
self.env['input']['eventBuffer'].append( [self.iDevices[fd], self.uDevices[fd], event])
|
||||
if event.type == evdev.events.EV_KEY:
|
||||
if event.code != 0:
|
||||
currMapEvent = self.mapEvent(event)
|
||||
if not currMapEvent:
|
||||
foreward = True
|
||||
if not isinstance(currMapEvent['EventName'], str):
|
||||
foreward = True
|
||||
if not foreward or eventFired:
|
||||
if currMapEvent['EventState'] in [0,1,2]:
|
||||
eventQueue.put({"Type":fenrirEventType.KeyboardInput,"Data":currMapEvent.copy()})
|
||||
eventFired = True
|
||||
else:
|
||||
if not event.type in [0,4]:
|
||||
foreward = True
|
||||
|
||||
event = self.iDevices[fd].read_one()
|
||||
if foreward and not eventFired:
|
||||
self.writeEventBuffer()
|
||||
self.clearEventBuffer()
|
||||
|
||||
def handleInputEvent(self, event):
|
||||
return
|
||||
|
||||
def writeEventBuffer(self):
|
||||
if not self._initialized:
|
||||
return
|
||||
for iDevice, uDevice, event in self.env['input']['eventBuffer']:
|
||||
self.writeUInput(uDevice, event)
|
||||
|
||||
def clearEventBuffer(self):
|
||||
if not self._initialized:
|
||||
return
|
||||
del self.env['input']['eventBuffer'][:]
|
||||
|
||||
def writeUInput(self, uDevice, event):
|
||||
if not self._initialized:
|
||||
return
|
||||
uDevice.write_event(event)
|
||||
uDevice.syn()
|
||||
time.sleep(0.00001)
|
||||
|
||||
def updateInputDevices(self, force = False, init = False):
|
||||
if init:
|
||||
self.removeAllDevices()
|
||||
deviceFileList = evdev.list_devices()
|
||||
if not force and False:
|
||||
if len(deviceFileList) == self.iDeviceNo:
|
||||
return
|
||||
mode = self.env['runtime']['settingsManager'].getSetting('keyboard', 'device').upper()
|
||||
iDevicesFiles = []
|
||||
for device in self.iDevices:
|
||||
iDevicesFiles.append(self.iDevices[device].fn)
|
||||
if len(iDevicesFiles) == len(deviceFileList):
|
||||
return
|
||||
eventType = evdev.events
|
||||
for deviceFile in deviceFileList:
|
||||
try:
|
||||
if deviceFile in iDevicesFiles:
|
||||
continue
|
||||
try:
|
||||
open(deviceFile)
|
||||
except Exception as e:
|
||||
self.env['runtime']['debug'].writeDebugOut("Not readable Inputdevice : " + deviceFile +' ' + str(e),debug.debugLevel.ERROR)
|
||||
continue
|
||||
# 3 pos absolute
|
||||
# 2 pos relative
|
||||
# 1 Keys
|
||||
currDevice = evdev.InputDevice(deviceFile)
|
||||
if currDevice.name.upper() in ['','SPEAKUP','PY-EVDEV-UINPUT']:
|
||||
continue
|
||||
if 'BRLTTY' in currDevice.name.upper():
|
||||
continue
|
||||
cap = currDevice.capabilities()
|
||||
if mode in ['ALL','NOMICE']:
|
||||
if eventType.EV_KEY in cap:
|
||||
if 116 in cap[eventType.EV_KEY] and len(cap[eventType.EV_KEY]) < 10:
|
||||
self.env['runtime']['debug'].writeDebugOut('Device Skipped (has 116):' + currDevice.name,debug.debugLevel.INFO)
|
||||
continue
|
||||
if len(cap[eventType.EV_KEY]) < 30:
|
||||
self.env['runtime']['debug'].writeDebugOut('Device Skipped (< 30 keys):' + currDevice.name,debug.debugLevel.INFO)
|
||||
continue
|
||||
if mode == 'ALL':
|
||||
self.iDevices[currDevice.fd] = currDevice
|
||||
self.grabDevice(currDevice.fd)
|
||||
self.env['runtime']['debug'].writeDebugOut('Device added (ALL):' + self.iDevices[currDevice.fd].name, debug.debugLevel.INFO)
|
||||
elif mode == 'NOMICE':
|
||||
if not ((eventType.EV_REL in cap) or (eventType.EV_ABS in cap)):
|
||||
self.iDevices[currDevice.fd] = currDevice
|
||||
self.grabDevice(currDevice.fd)
|
||||
self.env['runtime']['debug'].writeDebugOut('Device added (NOMICE):' + self.iDevices[currDevice.fd].name,debug.debugLevel.INFO)
|
||||
else:
|
||||
self.env['runtime']['debug'].writeDebugOut('Device Skipped (NOMICE):' + currDevice.name,debug.debugLevel.INFO)
|
||||
elif currDevice.name.upper() in mode.split(','):
|
||||
self.iDevices[currDevice.fd] = currDevice
|
||||
self.grabDevice(currDevice.fd)
|
||||
self.env['runtime']['debug'].writeDebugOut('Device added (Name):' + self.iDevices[currDevice.fd].name,debug.debugLevel.INFO)
|
||||
except Exception as e:
|
||||
print(e)
|
||||
self.env['runtime']['debug'].writeDebugOut("Device Skipped (Exception): " + deviceFile +' ' + currDevice.name +' '+ str(e),debug.debugLevel.INFO)
|
||||
self.iDeviceNo = len(evdev.list_devices())
|
||||
self.updateMPiDevicesFD()
|
||||
|
||||
def updateMPiDevicesFD(self):
|
||||
for fd in self.iDevices:
|
||||
if not fd in self.iDevicesFD:
|
||||
self.iDevicesFD.append(fd)
|
||||
for fd in self.iDevicesFD:
|
||||
if not fd in self.iDevices:
|
||||
self.iDevicesFD.remove(fd)
|
||||
def mapEvent(self, event):
|
||||
if not self._initialized:
|
||||
return None
|
||||
if not event:
|
||||
return None
|
||||
mEvent = inputData.inputEvent
|
||||
try:
|
||||
mEvent['EventName'] = evdev.ecodes.keys[event.code]
|
||||
mEvent['EventValue'] = event.code
|
||||
mEvent['EventSec'] = event.sec
|
||||
mEvent['EventUsec'] = event.usec
|
||||
mEvent['EventState'] = event.value
|
||||
mEvent['EventType'] = event.type
|
||||
return mEvent
|
||||
except Exception as e:
|
||||
return None
|
||||
|
||||
def getLedState(self, led = 0):
|
||||
if not self.hasIDevices():
|
||||
return False
|
||||
# 0 = Numlock
|
||||
# 1 = Capslock
|
||||
# 2 = Rollen
|
||||
for fd, dev in self.iDevices.items():
|
||||
if led in dev.leds():
|
||||
return True
|
||||
return False
|
||||
def toggleLedState(self, led = 0):
|
||||
if not self.hasIDevices():
|
||||
return False
|
||||
ledState = self.getLedState(led)
|
||||
for i in self.iDevices:
|
||||
# 17 LEDs
|
||||
if 17 in self.iDevices[i].capabilities():
|
||||
if ledState == 1:
|
||||
self.iDevices[i].set_led(led , 0)
|
||||
else:
|
||||
self.iDevices[i].set_led(led , 1)
|
||||
def grabAllDevices(self):
|
||||
if not self._initialized:
|
||||
return
|
||||
for fd in self.iDevices:
|
||||
self.grabDevice(fd)
|
||||
|
||||
def grabDevice(self, fd):
|
||||
if not self.env['runtime']['settingsManager'].getSettingAsBool('keyboard', 'grabDevices'):
|
||||
self.uDevices[fd] = None
|
||||
return
|
||||
try:
|
||||
self.uDevices[fd] = UInput.from_device(self.iDevices[fd].fn)
|
||||
except Exception as e:
|
||||
try:
|
||||
self.env['runtime']['debug'].writeDebugOut('InputDriver evdev: compat fallback: ' + str(e),debug.debugLevel.WARNING)
|
||||
dev = self.iDevices[fd]
|
||||
cap = dev.capabilities()
|
||||
del cap[0]
|
||||
self.uDevices[fd] = UInput(
|
||||
cap,
|
||||
dev.name,
|
||||
)
|
||||
except Exception as e:
|
||||
self.env['runtime']['debug'].writeDebugOut('InputDriver evdev: init Uinput not possible: ' + str(e),debug.debugLevel.ERROR)
|
||||
return
|
||||
try:
|
||||
self.iDevices[fd].grab()
|
||||
except Exception as e:
|
||||
self.env['runtime']['debug'].writeDebugOut('InputDriver evdev: grabing not possible: ' + str(e),debug.debugLevel.ERROR)
|
||||
|
||||
def removeDevice(self,fd):
|
||||
self.clearEventBuffer()
|
||||
try:
|
||||
self.iDevices[fd].ungrab()
|
||||
except:
|
||||
pass
|
||||
try:
|
||||
self.iDevices[fd].close()
|
||||
except:
|
||||
pass
|
||||
try:
|
||||
self.uDevices[fd].close()
|
||||
except:
|
||||
pass
|
||||
try:
|
||||
del(self.iDevices[fd])
|
||||
except:
|
||||
pass
|
||||
try:
|
||||
del(self.uDevices[fd])
|
||||
except:
|
||||
pass
|
||||
self.updateMPiDevicesFD()
|
||||
|
||||
def hasIDevices(self):
|
||||
if not self._initialized:
|
||||
return False
|
||||
if not self.iDevices:
|
||||
return False
|
||||
if len(self.iDevices) == 0:
|
||||
return False
|
||||
return True
|
||||
|
||||
def removeAllDevices(self):
|
||||
if not self.hasIDevices():
|
||||
return
|
||||
devices = self.iDevices.copy()
|
||||
for fd in devices:
|
||||
self.removeDevice(fd)
|
||||
self.iDevices.clear()
|
||||
self.uDevices.clear()
|
||||
self.iDeviceNo = 0
|
||||
|
||||
|
||||
Reference in New Issue
Block a user