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#Copyright (C) 2008 Codethink Ltd #This library is free software; you can redistribute it and/or #modify it under the terms of the GNU Lesser General Public #License version 2 as published by the Free Software Foundation. #This program 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 General Public License for more details. #You should have received a copy of the GNU Lesser General Public License #along with this program; if not, write to the Free Software #Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. import pyatspi.registry as registry from pyatspi.atspienum import * import traceback #------------------------------------------------------------------------------ class PressedEventType(AtspiEnum): _enum_lookup = { 0:'KEY_PRESSED_EVENT', 1:'KEY_RELEASED_EVENT', 2:'BUTTON_PRESSED_EVENT', 3:'BUTTON_RELEASED_EVENT', } KEY_PRESSED_EVENT = PressedEventType(0) KEY_RELEASED_EVENT = PressedEventType(1) BUTTON_PRESSED_EVENT = PressedEventType(2) BUTTON_RELEASED_EVENT = PressedEventType(3) #------------------------------------------------------------------------------ class ControllerEventMask(AtspiEnum): _enum_lookup = { 1:'KEY_PRESSED_EVENT_MASK', 2:'KEY_RELEASED_EVENT_MASK', 4:'BUTTON_PRESSED_EVENT_MASK', 8:'BUTTON_RELEASED_EVENT_MASK', } KEY_PRESSED_EVENT_MASK = ControllerEventMask(1) KEY_RELEASED_EVENT_MASK = ControllerEventMask(2) BUTTON_PRESSED_EVENT_MASK = ControllerEventMask(4) BUTTON_RELEASED_EVENT_MASK = ControllerEventMask(8) #------------------------------------------------------------------------------ class KeyEventType(AtspiEnum): _enum_lookup = { 0:'KEY_PRESSED', 1:'KEY_RELEASED', } KEY_PRESSED = KeyEventType(0) KEY_RELEASED = KeyEventType(1) #------------------------------------------------------------------------------ class KeySynthType(AtspiEnum): _enum_lookup = { 0:'KEY_PRESS', 1:'KEY_RELEASE', 2:'KEY_PRESSRELEASE', 3:'KEY_SYM', 4:'KEY_STRING', 5:'KEY_LOCKMODIFIERS', 6:'KEY_UNLOCKMODIFIERS', } KEY_LOCKMODIFIERS = KeySynthType(5) KEY_PRESS = KeySynthType(0) KEY_PRESSRELEASE = KeySynthType(2) KEY_RELEASE = KeySynthType(1) KEY_STRING = KeySynthType(4) KEY_SYM = KeySynthType(3) KEY_UNLOCKMODIFIERS = KeySynthType(6) #------------------------------------------------------------------------------ class ModifierType(AtspiEnum): _enum_lookup = { 0:'MODIFIER_SHIFT', 1:'MODIFIER_SHIFTLOCK', 2:'MODIFIER_CONTROL', 3:'MODIFIER_ALT', 4:'MODIFIER_META', 5:'MODIFIER_META2', 6:'MODIFIER_META3', 7:'MODIFIER_NUMLOCK', } MODIFIER_ALT = ModifierType(3) MODIFIER_CONTROL = ModifierType(2) MODIFIER_META = ModifierType(4) MODIFIER_META2 = ModifierType(5) MODIFIER_META3 = ModifierType(6) MODIFIER_NUMLOCK = ModifierType(7) MODIFIER_SHIFT = ModifierType(0) MODIFIER_SHIFTLOCK = ModifierType(1) def allModifiers(): """ Generates all possible keyboard modifiers for use with L{registry.Registry.registerKeystrokeListener}. """ mask = 0 while mask <= (1 << MODIFIER_NUMLOCK): yield mask mask += 1 #------------------------------------------------------------------------------ class DeviceEvent(list): """ Wraps an AT-SPI device event with a more Pythonic interface. Primarily adds a consume attribute which can be used to cease propagation of a device event. @ivar consume: Should this event be consumed and not allowed to pass on to observers further down the dispatch chain in this process or possibly system wide? @type consume: boolean @ivar type: Kind of event, KEY_PRESSED_EVENT or KEY_RELEASED_EVENT @type type: Accessibility.EventType @ivar id: Serial identifier for this key event @type id: integer @ivar hw_code: Hardware scan code for the key @type hw_code: integer @ivar modifiers: Modifiers held at the time of the key event @type modifiers: integer @ivar timestamp: Time at which the event occurred relative to some platform dependent starting point (e.g. XWindows start time) @type timestamp: integer @ivar event_string: String describing the key pressed (e.g. keysym) @type event_string: string @ivar is_text: Is the event representative of text to be inserted (True), or of a control key (False)? @type is_text: boolean """ def __new__(cls, type, id, hw_code, modifiers, timestamp, event_string, is_text): return list.__new__(cls, (type, id, hw_code, modifiers, timestamp, event_string, is_text)) def __init__(self, type, id, hw_code, modifiers, timestamp, event_string, is_text): list.__init__(self, (type, id, hw_code, modifiers, timestamp, event_string, is_text)) self.consume = False def _get_type(self): return self[0] def _set_type(self, val): self[0] = val type = property(fget=_get_type, fset=_set_type) def _get_id(self): return self[1] def _set_id(self, val): self[1] = val id = property(fget=_get_id, fset=_set_id) def _get_hw_code(self): return self[2] def _set_hw_code(self, val): self[2] = val hw_code = property(fget=_get_hw_code, fset=_set_hw_code) def _get_modifiers(self): return self[3] def _set_modifiers(self, val): self[3] = val modifiers = property(fget=_get_modifiers, fset=_set_modifiers) def _get_timestamp(self): return self[4] def _set_timestamp(self, val): self[4] = val timestamp = property(fget=_get_timestamp, fset=_set_timestamp) def _get_event_string(self): return self[5] def _set_event_string(self, val): self[5] = val event_string = property(fget=_get_event_string, fset=_set_event_string) def _get_is_text(self): return self[6] def _set_is_text(self, val): self[6] = val is_text = property(fget=_get_is_text, fset=_set_is_text) def __str__(self): """ Builds a human readable representation of the event. @return: Event description @rtype: string """ import constants if self.type == constants.KEY_PRESSED_EVENT: kind = 'pressed' elif self.type == constants.KEY_RELEASED_EVENT: kind = 'released' return """\ %s \thw_code: %d \tevent_string: %s \tmodifiers: %d \tid: %d \ttimestamp: %d \tis_text: %s""" % (kind, self.hw_code, self.event_string, self.modifiers, self.id, self.timestamp, self.is_text) #------------------------------------------------------------------------------ class EventListenerMode(list): def __new__(cls, synchronous, preemptive, global_): return list.__new__(cls, (synchronous, preemptive, global_)) def __init__(self, synchronous, preemptive, global_): list.__init__(self, (synchronous, preemptive, global_)) def _get_synchronous(self): return self[0] def _set_synchronous(self, val): self[0] = val synchronous = property(fget=_get_synchronous, fset=_set_synchronous) def _get_preemptive(self): return self[1] def _set_preemptive(self, val): self[1] = val preemptive = property(fget=_get_preemptive, fset=_set_preemptive) def _get_global_(self): return self[2] def _set_global_(self, val): self[2] = val global_ = property(fget=_get_global_, fset=_set_global_) #------------------------------------------------------------------------------ class KeyDefinition(list): def __new__(cls, keycode, keysym, keystring, unused): return list.__new__(cls, (keycode, keysym, keystring, unused)) def __init__(self, keycode, keysym, keystring, unused): list.__init__(self, (keycode, keysym, keystring, unused)) def _get_keycode(self): return self[0] def _set_keycode(self, val): self[0] = val keycode = property(fget=_get_keycode, fset=_set_keycode) def _get_keysym(self): return self[1] def _set_keysym(self, val): self[1] = val keysym = property(fget=_get_keysym, fset=_set_keysym) def _get_keystring(self): return self[2] def _set_keystring(self, val): self[2] = val keystring = property(fget=_get_keystring, fset=_set_keystring) def _get_unused(self): return self[3] def _set_unused(self, val): self[3] = val unused = property(fget=_get_unused, fset=_set_unused)

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