110 lines
4.9 KiB
Python
110 lines
4.9 KiB
Python
#!/bin/python
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# -*- coding: utf-8 -*-
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# Fenrir TTY screen reader
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# By Chrys, Storm Dragon, and contributers.
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from fenrirscreenreader.core import debug
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from fenrirscreenreader.core.eventData import fenrirEventType
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import os, inspect, re, time
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currentdir = os.path.dirname(os.path.realpath(os.path.abspath(inspect.getfile(inspect.currentframe()))))
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fenrirPath = os.path.dirname(currentdir)
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class byteManager():
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def __init__(self):
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self.switchCtrlModeOnce = 0
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self.controlMode = True
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self.repeat = 1
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self.lastInputTime = time.time()
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self.lastByteKey = b''
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def initialize(self, environment):
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self.env = environment
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def shutdown(self):
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pass
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def unifyEscapeSeq(self, escapeSequence):
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convertedEscapeSequence = escapeSequence
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if convertedEscapeSequence[0] == 27:
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convertedEscapeSequence = b'^[' + convertedEscapeSequence[1:]
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if len(convertedEscapeSequence) > 1:
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if convertedEscapeSequence[0] == 94 and convertedEscapeSequence[1] ==91:
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convertedEscapeSequence = b'^[' + convertedEscapeSequence[2:]
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return convertedEscapeSequence
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def handleByteInput(self, eventData):
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if not eventData:
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return
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if eventData == b'':
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return
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convertedEscapeSequence = self.unifyEscapeSeq(eventData)
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if self.switchCtrlModeOnce > 0:
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self.switchCtrlModeOnce -= 1
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isControlMode = False
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if self.controlMode and not self.switchCtrlModeOnce == 1 or\
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not self.controlMode:
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isControlMode = self.handleControlMode(eventData)
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isCommand = False
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if self.controlMode and not self.switchCtrlModeOnce == 1 or\
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not self.controlMode and self.switchCtrlModeOnce == 1:
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if self.lastByteKey == convertedEscapeSequence:
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if time.time() - self.lastInputTime <= self.env['runtime']['settingsManager'].getSettingAsFloat('keyboard','doubleTapTimeout'):
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self.repeat += 1
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shortcutData = b''
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for i in range(self.repeat):
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shortcutData = shortcutData + convertedEscapeSequence
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isCommand = self.detectByteCommand(shortcutData)
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# fall back to single stroke - do we want this?
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if not isCommand:
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isCommand = self.detectByteCommand(convertedEscapeSequence)
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self.repeat = 1
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if not (isCommand or isControlMode):
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self.env['runtime']['screenManager'].injectTextToScreen(eventData)
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if not isCommand:
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self.repeat = 1
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self.lastByteKey = convertedEscapeSequence
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self.lastInputTime = time.time()
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def handleControlMode(self, escapeSequence):
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convertedEscapeSequence = self.unifyEscapeSeq(escapeSequence)
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if convertedEscapeSequence == b'^[R':
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self.controlMode = not self.controlMode
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self.switchCtrlModeOnce = 0
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if self.controlMode:
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self.env['runtime']['outputManager'].presentText(_('Sticky Mode On'), soundIcon='Accept', interrupt=True, flush=True)
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else:
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self.env['runtime']['outputManager'].presentText(_('Sticky Mode On'), soundIcon='Cancel', interrupt=True, flush=True)
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return True
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if convertedEscapeSequence == b'^[:':
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self.switchCtrlModeOnce = 2
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self.env['runtime']['outputManager'].presentText(_('bypass'), soundIcon='PTYBypass', interrupt=True, flush=True)
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return True
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return False
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def detectByteCommand(self, escapeSequence):
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convertedEscapeSequence = self.unifyEscapeSeq(escapeSequence)
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command = self.env['runtime']['inputManager'].getCommandForShortcut(convertedEscapeSequence)
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if command != '':
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self.env['runtime']['eventManager'].putToEventQueue(fenrirEventType.ExecuteCommand, command)
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command = ''
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return True
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return False
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def loadByteShortcuts(self, kbConfigPath=fenrirPath + '/../../config/keyboard/pty.conf'):
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kbConfig = open(kbConfigPath,"r")
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while(True):
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line = kbConfig.readline()
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if not line:
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break
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line = line.replace('\n','')
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if line.replace(" ","") == '':
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continue
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if line.replace(" ","").startswith("#"):
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continue
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if line.count("=") != 1:
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continue
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Values = line.split('=')
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shortcut = bytes(Values[0],'UTF-8')
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commandName = Values[1].upper()
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self.env['bindings'][shortcut] = commandName
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self.env['runtime']['debug'].writeDebugOut("Byte Shortcut: "+ str(shortcut) + ' command:' +commandName ,debug.debugLevel.INFO, onAnyLevel=True)
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kbConfig.close()
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