88 lines
3.4 KiB
Python
88 lines
3.4 KiB
Python
#!/bin/python
|
|
# -*- coding: utf-8 -*-
|
|
|
|
# Fenrir TTY screen reader
|
|
# By Chrys, Storm Dragon, and contributers.
|
|
|
|
from fenrirscreenreader.core import debug
|
|
from fenrirscreenreader.core.eventData import fenrirEventType
|
|
from queue import Empty
|
|
import time
|
|
from multiprocessing import Queue
|
|
from multiprocessing.sharedctypes import Value
|
|
from ctypes import c_bool
|
|
|
|
class eventManager():
|
|
def __init__(self):
|
|
self.running = Value(c_bool, True)
|
|
self._eventQueue = Queue() # multiprocessing.Queue()
|
|
self.cleanEventQueue()
|
|
def initialize(self, environment):
|
|
self.env = environment
|
|
def shutdown(self):
|
|
self.cleanEventQueue()
|
|
|
|
def proceedEventLoop(self):
|
|
event = self._eventQueue.get()
|
|
st = time.time()
|
|
self.eventDispatcher(event)
|
|
#print('NET loop ' + str(time.time() - st))
|
|
def eventDispatcher(self, event):
|
|
self.env['runtime']['debug'].writeDebugOut('eventManager:eventDispatcher:start: event: ' + str(event['Type']),debug.debugLevel.INFO)
|
|
|
|
if not event:
|
|
return
|
|
if not event['Type']:
|
|
return
|
|
if event['Type'] == fenrirEventType.Ignore:
|
|
return
|
|
elif event['Type'] == fenrirEventType.StopMainLoop:
|
|
self.handleStopMainLoop(event)
|
|
elif event['Type'] == fenrirEventType.ScreenUpdate:
|
|
self.env['runtime']['fenrirManager'].handleScreenUpdate(event)
|
|
elif event['Type'] == fenrirEventType.KeyboardInput:
|
|
self.env['runtime']['fenrirManager'].handleInput(event)
|
|
elif event['Type'] == fenrirEventType.BrailleInput:
|
|
pass
|
|
elif event['Type'] == fenrirEventType.PlugInputDevice:
|
|
self.env['runtime']['fenrirManager'].handlePlugInputDevice(event)
|
|
elif event['Type'] == fenrirEventType.BrailleFlush:
|
|
pass
|
|
elif event['Type'] == fenrirEventType.ScreenChanged:
|
|
self.env['runtime']['fenrirManager'].handleScreenChange(event)
|
|
elif event['Type'] == fenrirEventType.HeartBeat:
|
|
self.env['runtime']['fenrirManager'].handleHeartBeat(event)
|
|
elif event['Type'] == fenrirEventType.ExecuteCommand:
|
|
self.env['runtime']['fenrirManager'].handleExecuteCommand(event)
|
|
elif event['Type'] == fenrirEventType.ByteInput:
|
|
self.env['runtime']['fenrirManager'].handleByteInput(event)
|
|
def isMainEventLoopRunning(self):
|
|
return self.running.value == 1
|
|
def startMainEventLoop(self):
|
|
self.running.value = 1
|
|
while( self.isMainEventLoopRunning()):
|
|
self.proceedEventLoop()
|
|
|
|
def handleStopMainLoop(self, event):
|
|
self.running.value = 0
|
|
time.sleep(0.1)
|
|
def stopMainEventLoop(self):
|
|
self._eventQueue.put({"Type":fenrirEventType.StopMainLoop,"Data":None})
|
|
def cleanEventQueue(self):
|
|
if self._eventQueue.empty():
|
|
return
|
|
try:
|
|
while True:
|
|
self._eventQueue.get_nowait()
|
|
except Empty:
|
|
pass
|
|
def getEventQueue(self):
|
|
return self._eventQueue
|
|
def getRunning(self):
|
|
return self.running
|
|
def putToEventQueue(self,event, data):
|
|
if not isinstance(event, fenrirEventType):
|
|
return False
|
|
self._eventQueue.put({"Type":event,"Data":data})
|
|
return True
|