Файловый менеджер

Файловый менеджер - Редактировать - /usr/lib/python3/dist-packages/orca/caret_navigation.py

Назад
# Orca # # Copyright 2013-2015 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. """Provides an Orca-controlled caret for text content.""" __id__ = "$Id$" __version__ = "$Revision$" __date__ = "$Date$" __copyright__ = "Copyright (c) 2013-2015 Igalia, S.L." __license__ = "LGPL" from . import cmdnames from . import debug from . import input_event from . import keybindings from . import messages from . import settings_manager class CaretNavigation: """Implements the caret navigation support available to scripts.""" def __init__(self, script): if not (script and script.app): msg = "INFO: Caret navigation requires a script and app." debug.println(debug.LEVEL_INFO, msg) self._script = script self._handlers = self._setup_handlers() self._bindings = self._setup_bindings() def handles_navigation(self, handler): """Returns True if handler is a navigation command.""" if not handler in self._handlers.values(): return False if handler.function == self._toggle_enabled: return False return True def get_bindings(self): """Returns the caret-navigation keybindings.""" return self._bindings def get_handlers(self): """Returns the caret-navigation handlers.""" return self._handlers def _setup_handlers(self): """Sets up and returns the caret-navigation input event handlers.""" handlers = {} if not (self._script and self._script.app): return handlers handlers["toggle_enabled"] = \ input_event.InputEventHandler( self._toggle_enabled, cmdnames.CARET_NAVIGATION_TOGGLE) handlers["next_character"] = \ input_event.InputEventHandler( self._next_character, cmdnames.CARET_NAVIGATION_NEXT_CHAR) handlers["previous_character"] = \ input_event.InputEventHandler( self._previous_character, cmdnames.CARET_NAVIGATION_PREV_CHAR) handlers["next_word"] = \ input_event.InputEventHandler( self._next_word, cmdnames.CARET_NAVIGATION_NEXT_WORD) handlers["previous_word"] = \ input_event.InputEventHandler( self._previous_word, cmdnames.CARET_NAVIGATION_PREV_WORD) handlers["next_line"] = \ input_event.InputEventHandler( self._next_line, cmdnames.CARET_NAVIGATION_NEXT_LINE) handlers["previous_line"] = \ input_event.InputEventHandler( self._previous_line, cmdnames.CARET_NAVIGATION_PREV_LINE) handlers["start_of_file"] = \ input_event.InputEventHandler( self._start_of_file, cmdnames.CARET_NAVIGATION_FILE_START) handlers["end_of_file"] = \ input_event.InputEventHandler( self._end_of_file, cmdnames.CARET_NAVIGATION_FILE_END) handlers["start_of_line"] = \ input_event.InputEventHandler( self._start_of_line, cmdnames.CARET_NAVIGATION_LINE_START) handlers["end_of_line"] = \ input_event.InputEventHandler( self._end_of_line, cmdnames.CARET_NAVIGATION_LINE_END) return handlers def _setup_bindings(self): """Sets up and returns the caret-navigation key bindings.""" bindings = keybindings.KeyBindings() if not (self._script and self._script.app): return bindings bindings.add( keybindings.KeyBinding( "F12", keybindings.defaultModifierMask, keybindings.ORCA_MODIFIER_MASK, self._handlers.get("toggle_enabled"))) bindings.add( keybindings.KeyBinding( "Right", keybindings.defaultModifierMask, keybindings.NO_MODIFIER_MASK, self._handlers.get("next_character"))) bindings.add( keybindings.KeyBinding( "Left", keybindings.defaultModifierMask, keybindings.NO_MODIFIER_MASK, self._handlers.get("previous_character"))) bindings.add( keybindings.KeyBinding( "Right", keybindings.defaultModifierMask, keybindings.CTRL_MODIFIER_MASK, self._handlers.get("next_word"))) bindings.add( keybindings.KeyBinding( "Left", keybindings.defaultModifierMask, keybindings.CTRL_MODIFIER_MASK, self._handlers.get("previous_word"))) bindings.add( keybindings.KeyBinding( "Down", keybindings.defaultModifierMask, keybindings.NO_MODIFIER_MASK, self._handlers.get("next_line"))) bindings.add( keybindings.KeyBinding( "Up", keybindings.defaultModifierMask, keybindings.NO_MODIFIER_MASK, self._handlers.get("previous_line"))) bindings.add( keybindings.KeyBinding( "End", keybindings.defaultModifierMask, keybindings.NO_MODIFIER_MASK, self._handlers.get("end_of_line"))) bindings.add( keybindings.KeyBinding( "Home", keybindings.defaultModifierMask, keybindings.NO_MODIFIER_MASK, self._handlers.get("start_of_line"))) bindings.add( keybindings.KeyBinding( "End", keybindings.defaultModifierMask, keybindings.CTRL_MODIFIER_MASK, self._handlers.get("end_of_file"))) bindings.add( keybindings.KeyBinding( "Home", keybindings.defaultModifierMask, keybindings.CTRL_MODIFIER_MASK, self._handlers.get("start_of_file"))) return bindings @staticmethod def _toggle_enabled(script, event): """Toggles caret navigation.""" if not event: return False _settings_manager = settings_manager.getManager() enabled = not _settings_manager.getSetting('caretNavigationEnabled') if enabled: string = messages.CARET_CONTROL_ORCA else: string = messages.CARET_CONTROL_APP script.presentMessage(string) _settings_manager.setSetting('caretNavigationEnabled', enabled) return True @staticmethod def _next_character(script, event): """Moves to the next character.""" if not event: return False obj, offset = script.utilities.nextContext() if not obj: return False script.utilities.setCaretPosition(obj, offset) script.updateBraille(obj) script.sayCharacter(obj) return True @staticmethod def _previous_character(script, event): """Moves to the previous character.""" if not event: return False obj, offset = script.utilities.previousContext() if not obj: return False script.utilities.setCaretPosition(obj, offset) script.updateBraille(obj) script.sayCharacter(obj) return True @staticmethod def _next_word(script, event): """Moves to the next word.""" if not event: return False obj, offset = script.utilities.nextContext(skipSpace=True) contents = script.utilities.getWordContentsAtOffset(obj, offset) if not contents: return False obj, end, string = contents[-1][0], contents[-1][2], contents[-1][3] if string and not string[-1].isalnum(): end -= 1 script.utilities.setCaretPosition(obj, end) script.updateBraille(obj) script.sayWord(obj) return True @staticmethod def _previous_word(script, event): """Moves to the previous word.""" if not event: return False obj, offset = script.utilities.previousContext(skipSpace=True) contents = script.utilities.getWordContentsAtOffset(obj, offset) if not contents: return False obj, start = contents[0][0], contents[0][1] script.utilities.setCaretPosition(obj, start) script.updateBraille(obj) script.sayWord(obj) return True @staticmethod def _next_line(script, event): """Moves to the next line.""" if not event: return False if script.inSayAll(): _settings_manager = settings_manager.getManager() if _settings_manager.getSetting('rewindAndFastForwardInSayAll'): msg = "INFO: inSayAll and rewindAndFastforwardInSayAll is enabled" debug.println(debug.LEVEL_INFO, msg) return True obj, offset = script.utilities.getCaretContext() line = script.utilities.getLineContentsAtOffset(obj, offset) if not (line and line[0]): return False contents = script.utilities.getNextLineContents() if not contents: return False obj, start = contents[0][0], contents[0][1] script.utilities.setCaretPosition(obj, start) script.speakContents(contents, priorObj=line[-1][0]) script.displayContents(contents) return True @staticmethod def _previous_line(script, event): """Moves to the previous line.""" if not event: return False if script.inSayAll(): _settings_manager = settings_manager.getManager() if _settings_manager.getSetting('rewindAndFastForwardInSayAll'): msg = "INFO: inSayAll and rewindAndFastforwardInSayAll is enabled" debug.println(debug.LEVEL_INFO, msg) return True contents = script.utilities.getPreviousLineContents() if not contents: return False obj, start = contents[0][0], contents[0][1] script.utilities.setCaretPosition(obj, start) script.speakContents(contents) script.displayContents(contents) return True @staticmethod def _start_of_line(script, event): """Moves to the start of the line.""" if not event: return False obj, offset = script.utilities.getCaretContext() line = script.utilities.getLineContentsAtOffset(obj, offset) if not (line and line[0]): return False obj, start = line[0][0], line[0][1] script.utilities.setCaretPosition(obj, start) script.sayCharacter(obj) script.displayContents(line) return True @staticmethod def _end_of_line(script, event): """Moves to the end of the line.""" if not event: return False obj, offset = script.utilities.getCaretContext() line = script.utilities.getLineContentsAtOffset(obj, offset) if not (line and line[0]): return False obj, end, string = line[-1][0], line[-1][2], line[-1][3] if string.strip() and string[-1].isspace(): end -= 1 script.utilities.setCaretPosition(obj, end) script.sayCharacter(obj) script.displayContents(line) return True @staticmethod def _start_of_file(script, event): """Moves to the start of the file.""" if not event: return False document = script.utilities.documentFrame() obj, offset = script.utilities.findFirstCaretContext(document, 0) contents = script.utilities.getLineContentsAtOffset(obj, offset) if not contents: return False obj, offset = contents[0][0], contents[0][1] script.utilities.setCaretPosition(obj, offset) script.speakContents(contents) script.displayContents(contents) return True @staticmethod def _end_of_file(script, event): """Moves to the end of the file.""" if not event: return False document = script.utilities.documentFrame() obj = script.utilities.getLastObjectInDocument(document) offset = 0 text = script.utilities.queryNonEmptyText(obj) if text: offset = text.characterCount - 1 while obj: lastobj, lastoffset = script.utilities.nextContext(obj, offset) if not lastobj: break obj, offset = lastobj, lastoffset contents = script.utilities.getLineContentsAtOffset(obj, offset) if not contents: return False obj, offset = contents[-1][0], contents[-1][2] script.utilities.setCaretPosition(obj, offset) script.speakContents(contents) script.displayContents(contents) return True

| ver. 1.4 | Github | . | PHP 7.4.3-4ubuntu2.28 | Генерация страницы: 0.01 | proxy | phpinfo | Настройка