fenrir/src/fenrir-package/fenrir.py

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#!/bin/python
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# -*- coding: utf-8 -*-
# Fenrir TTY screen reader
# By Chrys, Storm Dragon, and contributers.
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import os, sys, signal, time
if not os.getcwd() in sys.path:
sys.path.append(os.getcwd())
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from core import settingsManager
from core import debug
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class fenrir():
def __init__(self):
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try:
self.environment = settingsManager.settingsManager().initFenrirConfig()
if not self.environment:
raise RuntimeError('Cannot Initialize. Maybe the configfile is not available or not parseable')
except RuntimeError:
raise
self.environment['runtime']['outputManager'].presentText("Start Fenrir", soundIcon='ScreenReaderOn', interrupt=True)
signal.signal(signal.SIGINT, self.captureSignal)
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signal.signal(signal.SIGTERM, self.captureSignal)
def proceed(self):
while(self.environment['generalInformation']['running']):
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try:
self.handleProcess()
except Exception as e:
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print(e)
self.environment['runtime']['debug'].writeDebugOut(str(e),debug.debugLevel.ERROR)
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self.shutdown()
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def handleProcess(self):
eventReceived = self.environment['runtime']['inputManager'].getInputEvent()
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if eventReceived:
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self.prepareCommand()
if not (self.environment['runtime']['inputManager'].isConsumeInput() or \
self.environment['runtime']['inputManager'].isFenrirKeyPressed()) and \
not self.environment['runtime']['commandManager'].isCommandQueued():
self.environment['runtime']['inputManager'].writeEventBuffer()
elif self.environment['runtime']['inputManager'].noKeyPressed():
self.environment['runtime']['inputManager'].clearEventBuffer()
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try:
self.environment['runtime']['screenManager'].update()
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except Exception as e:
print(e)
self.environment['runtime']['debug'].writeDebugOut(str(e),debug.debugLevel.ERROR)
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if self.environment['screenData']['newApplication'] != self.environment['screenData']['oldApplication']:
self.environment['runtime']['commandManager'].executeTriggerCommands('onApplicationChange')
self.environment['runtime']['commandManager'].executeTriggerCommands('onInput')
if self.environment['screenData']['newTTY'] == self.environment['screenData']['oldTTY']:
self.environment['runtime']['commandManager'].executeTriggerCommands('onScreenUpdate')
else:
self.environment['runtime']['commandManager'].executeTriggerCommands('onScreenChanged')
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self.handleCommands()
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def prepareCommand(self):
if self.environment['input']['keyForeward']:
return
shortcut = self.environment['runtime']['inputManager'].getCurrShortcut()
command = self.environment['runtime']['inputManager'].getCommandForShortcut(shortcut)
self.environment['runtime']['commandManager'].queueCommand(command)
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def handleCommands(self):
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if time.time() - self.environment['commandInfo']['lastCommandExecutionTime'] < 0.2:
return
if not self.environment['runtime']['commandManager'].isCommandQueued():
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return
self.environment['runtime']['commandManager'].executeCommand( self.environment['commandInfo']['currCommand'], 'commands')
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def shutdownRequest(self):
self.environment['generalInformation']['running'] = False
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def captureSignal(self, siginit, frame):
self.shutdownRequest()
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def shutdown(self):
if self.environment['runtime']['inputManager']:
self.environment['runtime']['inputManager'].shutdown()
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del self.environment['runtime']['inputManager']
self.environment['runtime']['outputManager'].presentText("Quit Fenrir", soundIcon='ScreenReaderOff', interrupt=True)
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time.sleep(.8) # wait a little for sound
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if self.environment['runtime']['screenManager']:
self.environment['runtime']['screenManager'].shutdown()
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del self.environment['runtime']['screenManager']
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if self.environment['runtime']['commandManager']:
self.environment['runtime']['commandManager'].shutdown()
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del self.environment['runtime']['commandManager']
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if self.environment['runtime']['outputManager']:
self.environment['runtime']['outputManager'].shutdown()
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del self.environment['runtime']['outputManager']
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if self.environment['runtime']['debug']:
self.environment['runtime']['debug'].shutdown()
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del self.environment['runtime']['debug']
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time.sleep(0.5) # wait a little before splatter it :)
self.environment = None
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if __name__ == "__main__":
app = fenrir()
app.proceed()
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del app