Current File : //usr/lib/python3/dist-packages/orca/scripts/terminal/script.py
# Orca
#
# Copyright 2016 Igalia, S.L.
# Author: Joanmarie Diggs <jdiggs@igalia.com>
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the
# Free Software Foundation, Inc., Franklin Street, Fifth Floor,
# Boston MA 02110-1301 USA.
__id__ = "$Id$"
__version__ = "$Revision$"
__date__ = "$Date$"
__copyright__ = "Copyright (c) 2016 Igalia, S.L."
__license__ = "LGPL"
from orca import debug
from orca import focus_manager
from orca.scripts import default
from orca.ax_text import AXText
from .braille_generator import BrailleGenerator
from .speech_generator import SpeechGenerator
from .script_utilities import Utilities
class Script(default.Script):
def __init__(self, app):
super().__init__(app)
self.presentIfInactive = False
def deactivate(self):
"""Called when this script is deactivated."""
self.utilities.clearCache()
super().deactivate()
def getBrailleGenerator(self):
"""Returns the braille generator for this script."""
return BrailleGenerator(self)
def getSpeechGenerator(self):
"""Returns the speech generator for this script."""
return SpeechGenerator(self)
def getUtilities(self):
"""Returns the utilities for this script."""
return Utilities(self)
def onFocus(self, event):
"""Callback for focus: accessibility events."""
# https://bugzilla.gnome.org/show_bug.cgi?id=748311
focus_manager.getManager().set_locus_of_focus(event, event.source)
def onTextDeleted(self, event):
"""Callback for object:text-changed:delete accessibility events."""
if self.utilities.treatEventAsNoise(event):
msg = "TERMINAL: Deletion is believed to be noise"
debug.printMessage(debug.LEVEL_INFO, msg, True)
return
super().onTextDeleted(event)
def onTextInserted(self, event):
"""Callback for object:text-changed:insert accessibility events."""
if not self.utilities.treatEventAsCommand(event):
msg = "TERMINAL: Passing along event to default script."
debug.printMessage(debug.LEVEL_INFO, msg, True)
super().onTextInserted(event)
return
msg = "TERMINAL: Insertion is believed to be due to terminal command"
debug.printMessage(debug.LEVEL_INFO, msg, True)
self.updateBraille(event.source)
newString = self.utilities.insertedText(event)
if len(newString) == 1:
self.speakCharacter(newString)
else:
voice = self.speechGenerator.voice(obj=event.source, string=newString)
self.speakMessage(newString, voice=voice)
if self.flatReviewPresenter.is_active():
msg = "TERMINAL: Flat review presenter is active. Ignoring insertion"
debug.printMessage(debug.LEVEL_INFO, msg, True)
return
offset = AXText.get_caret_offset(event.source)
self._saveLastCursorPosition(event.source, offset)
self.utilities.updateCachedTextSelection(event.source)
def presentKeyboardEvent(self, event):
if not event.isPrintableKey():
return super().presentKeyboardEvent(event)
if event.isPressedKey():
return False
self._sayAllIsInterrupted = False
self.utilities.clearCachedCommandState()
if not event.shouldEcho or event.isOrcaModified() or event.isCharacterEchoable():
return False
# We have no reliable way of knowing a password is being entered into
# a terminal -- other than the fact that the text typed isn't there.
char, start = AXText.get_character_at_offset(event.getObject())[0:2]
prevChar = AXText.get_character_at_offset(event.getObject(), start - 1)[0]
string = event.event_string
if string not in [prevChar, "space", char]:
return False
tokens = ["TERMINAL: Presenting keyboard event", string]
debug.printTokens(debug.LEVEL_INFO, tokens, True)
self.speakKeyEvent(event)
return True
def skipObjectEvent(self, event):
if event.type == "object:text-changed:insert":
return False
newEvent, newTime = None, 0
if event.type == "object:text-changed:delete":
if self.utilities.isBackSpaceCommandTextDeletionEvent(event):
return False
newEvent, newTime = self.eventCache.get("object:text-changed:insert", [None, 0])
if newEvent is None or newEvent.source != event.source:
return super().skipObjectEvent(event)
if event.detail1 != newEvent.detail1:
return False
data = "\n%s%s" % (" " * 11, str(newEvent).replace("\t", " " * 11))
tokens = ["TERMINAL: Skipping due to more recent event at offset", data]
debug.printTokens(debug.LEVEL_INFO, tokens, True)
return True
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