Improvements to braill driver.
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@ -1,4 +1,4 @@
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#!/usr/bin/env python3
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#!/usr/bin/python
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# -*- coding: utf-8 -*-
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# -*- coding: utf-8 -*-
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# Fenrir TTY screen reader
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# Fenrir TTY screen reader
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# By Chrys, Storm Dragon, and contributors.
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# By Chrys, Storm Dragon, and contributors.
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@ -9,8 +9,8 @@ from fenrirscreenreader.core import debug
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class brailleDriver():
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class brailleDriver():
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def __init__(self):
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def __init__(self):
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self._isInitialized = False
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self._isInitialized = False
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self.deviceSize = None
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self._brl = None
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self._brl = None
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self.deviceSize = None
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def initialize(self, environment):
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def initialize(self, environment):
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"""Initialize the BRLTTY connection."""
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"""Initialize the BRLTTY connection."""
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@ -36,22 +36,19 @@ class brailleDriver():
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if not self._isInitialized:
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if not self._isInitialized:
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return
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return
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try:
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try:
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# Ensure text doesn't exceed display width
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if self.deviceSize:
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text = text[:self.deviceSize[0]]
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self._brl.writeText(text)
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self._brl.writeText(text)
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except Exception as e:
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except Exception as e:
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self.env['runtime']['debug'].writeDebugOut('ERROR: Writing braille failed:' + str(e),debug.debugLevel.ERROR)
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self.env['runtime']['debug'].writeDebugOut('ERROR: Writing braille failed:' + str(e),debug.debugLevel.ERROR)
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def connectDevice(self):
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def readKeypress(self):
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"""Attempt to connect to the braille device."""
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"""Read a keypress from the braille display."""
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if not self._isInitialized:
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return None
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try:
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try:
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if self._brl:
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return self._brl.readKey(wait=0)
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self._brl.enterTtyMode()
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return True
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except Exception as e:
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except Exception as e:
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self.env['runtime']['debug'].writeDebugOut('ERROR: Connecting braille failed:' + str(e),debug.debugLevel.ERROR)
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self.env['runtime']['debug'].writeDebugOut('ERROR: Reading key failed:' + str(e),debug.debugLevel.ERROR)
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return False
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return None
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def enterScreen(self, screen):
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def enterScreen(self, screen):
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"""Enter a new screen context."""
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"""Enter a new screen context."""
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