Current File : //usr/lib/python3/dist-packages/orca/scripts/toolkits/WebKitGtk/speech_generator.py
# Orca
#
# Copyright (C) 2010 Joanmarie Diggs
# Copyright (C) 2011-2012 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) 2010 Joanmarie Diggs" \
"Copyright (c) 2011-2012 Igalia, S.L."
__license__ = "LGPL"
import gi
gi.require_version("Atspi", "2.0")
from gi.repository import Atspi
import orca.keynames as keynames
import orca.object_properties as object_properties
import orca.settings as settings
import orca.settings_manager as settings_manager
import orca.speech_generator as speech_generator
from orca.ax_object import AXObject
from orca.ax_utilities import AXUtilities
########################################################################
# #
# Custom SpeechGenerator #
# #
########################################################################
class SpeechGenerator(speech_generator.SpeechGenerator):
"""Provides a speech generator specific to WebKitGtk widgets."""
def __init__(self, script):
speech_generator.SpeechGenerator.__init__(self, script)
def getVoiceForString(self, obj, string, **args):
voice = settings.voices[settings.DEFAULT_VOICE]
if string.isupper():
voice = settings.voices[settings.UPPERCASE_VOICE]
return voice
def _generateLabel(self, obj, **args):
result = super()._generateLabel(obj, **args)
if result or not self._script.utilities.isWebKitGtk(obj):
return result
role = args.get('role', AXObject.get_role(obj))
inferRoles = [Atspi.Role.CHECK_BOX,
Atspi.Role.COMBO_BOX,
Atspi.Role.ENTRY,
Atspi.Role.LIST,
Atspi.Role.PASSWORD_TEXT,
Atspi.Role.RADIO_BUTTON]
if role not in inferRoles:
return result
label, objects = self._script.labelInference.infer(obj)
if label:
result.append(label)
result.extend(self.voice(speech_generator.DEFAULT, obj=obj, **args))
return result
def __generateHeadingRole(self, obj):
result = []
role = Atspi.Role.HEADING
level = self._script.utilities.headingLevel(obj)
if level:
result.append(object_properties.ROLE_HEADING_LEVEL_SPEECH % {
'role': self.getLocalizedRoleName(obj, role=role),
'level': level})
else:
result.append(self.getLocalizedRoleName(obj, role=role))
return result
def _generateRoleName(self, obj, **args):
if settings_manager.getManager().getSetting('onlySpeakDisplayedText'):
return []
result = []
role = args.get('role', AXObject.get_role(obj))
force = args.get('force', False)
doNotSpeak = [Atspi.Role.UNKNOWN]
if not force:
doNotSpeak.extend([Atspi.Role.FORM,
Atspi.Role.LABEL,
Atspi.Role.MENU_ITEM,
Atspi.Role.LIST_ITEM,
Atspi.Role.PARAGRAPH,
Atspi.Role.SECTION,
Atspi.Role.TABLE_CELL])
if role not in doNotSpeak:
if role == Atspi.Role.IMAGE:
link = AXObject.find_ancestor(obj, AXUtilities.is_link)
if link:
result.append(self.getLocalizedRoleName(link))
elif role == Atspi.Role.HEADING:
result.extend(self.__generateHeadingRole(obj))
else:
result.append(self.getLocalizedRoleName(obj, role=role))
if AXObject.get_role(AXObject.get_parent(obj)) == Atspi.Role.HEADING:
result.extend(self.__generateHeadingRole(AXObject.get_parent(obj)))
if result:
result.extend(self.voice(speech_generator.SYSTEM, obj=obj, **args))
if role == Atspi.Role.LINK and AXObject.get_child_count(obj):
child = AXObject.get_child(obj, 0)
if not AXObject.get_role(child) == Atspi.Role.IMAGE:
return result
# If this is a link with a child which is an image, we
# want to indicate that.
#
result.append(self.getLocalizedRoleName(child))
result.extend(self.voice(speech_generator.SYSTEM, obj=obj, **args))
return result
def _generateAncestors(self, obj, **args):
"""Returns an array of strings (and possibly voice and audio
specifications) that represent the text of the ancestors for
the object. This is typically used to present the context for
an object (e.g., the names of the window, the panels, etc.,
that the object is contained in). If the 'priorObj' attribute
of the args dictionary is set, only the differences in
ancestry between the 'priorObj' and the current obj will be
computed. The 'priorObj' is typically set by Orca to be the
previous object with focus.
"""
role = args.get('role', AXObject.get_role(obj))
if role == Atspi.Role.LINK:
return []
args['stopAtRoles'] = [Atspi.Role.DOCUMENT_FRAME,
Atspi.Role.DOCUMENT_WEB,
Atspi.Role.EMBEDDED,
Atspi.Role.INTERNAL_FRAME,
Atspi.Role.FORM,
Atspi.Role.MENU_BAR,
Atspi.Role.TOOL_BAR]
args['skipRoles'] = [Atspi.Role.PARAGRAPH,
Atspi.Role.LIST_ITEM,
Atspi.Role.TEXT]
return speech_generator.SpeechGenerator._generateAncestors(
self, obj, **args)
def _generateMnemonic(self, obj, **args):
"""Returns an array of strings (and possibly voice and audio
specifications) that represent the mnemonic for the object, or
an empty array if no mnemonic can be found.
"""
if settings_manager.getManager().getSetting('onlySpeakDisplayedText'):
return []
if not (settings_manager.getManager().getSetting('enableMnemonicSpeaking') \
or args.get('forceMnemonic', False)):
return []
if not self._script.utilities.isWebKitGtk(obj):
return speech_generator.SpeechGenerator._generateMnemonic(
self, obj, **args)
result = []
mnemonic, shortcut, accelerator = \
self._script.utilities.mnemonicShortcutAccelerator(obj)
if shortcut:
if settings_manager.getManager().getSetting('speechVerbosityLevel') == \
settings.VERBOSITY_LEVEL_VERBOSE:
shortcut = f'Alt Shift {shortcut}'
result = [keynames.localizeKeySequence(shortcut)]
result.extend(self.voice(speech_generator.SYSTEM, obj=obj, **args))
return result
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