239 lines
7.6 KiB
Python
239 lines
7.6 KiB
Python
# Copyright (C) 2006-2007, Red Hat, Inc.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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import os
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import signal
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import logging
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import dbus
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import gobject
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import gtk
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from hardware import hardwaremanager
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from model.shellmodel import ShellModel
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from sugar._sugarext import KeyGrabber
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_BRIGHTNESS_STEP = 2
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_VOLUME_STEP = 10
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_BRIGHTNESS_MAX = 15
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_VOLUME_MAX = 100
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_actions_table = {
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'F1' : 'zoom_mesh',
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'F2' : 'zoom_friends',
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'F3' : 'zoom_home',
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'F4' : 'zoom_activity',
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'F9' : 'brightness_down',
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'F10' : 'brightness_up',
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'<ctrl>F9' : 'brightness_min',
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'<ctrl>F10' : 'brightness_max',
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'F11' : 'volume_down',
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'F12' : 'volume_up',
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'<ctrl>F11' : 'volume_min',
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'<ctrl>F12' : 'volume_max',
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'<alt>1' : 'screenshot',
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'<alt>f' : 'frame',
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'0x93' : 'frame',
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'<alt>o' : 'overlay',
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'0xE0' : 'overlay',
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'0xEB' : 'rotate',
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'<alt>r' : 'rotate',
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'<alt>q' : 'quit_emulator',
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'<alt>Tab' : 'next_window',
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'<alt>n' : 'next_window',
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'<ctrl><alt>Tab' : 'previous_window',
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'<alt>p' : 'previous_window',
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'<ctrl>Escape' : 'close_window',
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'<ctrl>q' : 'close_window',
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'0xDC' : 'open_search',
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'<ctrl>o' : 'open_search',
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'<alt>s' : 'say_text'
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}
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J_DBUS_SERVICE = 'org.laptop.Journal'
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J_DBUS_PATH = '/org/laptop/Journal'
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J_DBUS_INTERFACE = 'org.laptop.Journal'
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SPEECH_DBUS_SERVICE = 'org.laptop.Speech'
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SPEECH_DBUS_PATH = '/org/laptop/Speech'
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SPEECH_DBUS_INTERFACE = 'org.laptop.Speech'
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class KeyHandler(object):
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def __init__(self, shell):
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self._shell = shell
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self._screen_rotation = 0
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self._key_pressed = None
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self._keycode_pressed = 0
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self._keystate_pressed = 0
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self._speech_proxy = None
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self._key_grabber = KeyGrabber()
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self._key_grabber.connect('key-pressed',
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self._key_pressed_cb)
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for key in _actions_table.keys():
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self._key_grabber.grab(key)
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def _change_volume(self, step=None, value=None):
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hw_manager = hardwaremanager.get_manager()
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if step is not None:
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volume = hw_manager.get_volume() + step
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elif value is not None:
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volume = value
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volume = min(max(0, volume), _VOLUME_MAX)
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hw_manager.set_volume(volume)
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hw_manager.set_mute(volume == 0)
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def _change_brightness(self, step=None, value=None):
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hw_manager = hardwaremanager.get_manager()
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if step is not None:
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level = hw_manager.get_display_brightness() + step
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elif value is not None:
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level = value
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level = min(max(0, level), _BRIGHTNESS_MAX)
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hw_manager.set_display_brightness(level)
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if level == 0:
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hw_manager.set_display_mode(hardwaremanager.B_AND_W_MODE)
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else:
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hw_manager.set_display_mode(hardwaremanager.COLOR_MODE)
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def _get_speech_proxy(self):
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if self._speech_proxy is None:
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bus = dbus.SessionBus()
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speech_obj = bus.get_object(SPEECH_DBUS_SERVICE, SPEECH_DBUS_PATH)
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self._speech_proxy = dbus.Interface(speech_obj, SPEECH_DBUS_INTERFACE)
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return self._speech_proxy
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def _on_speech_err(self, ex):
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logging.error("An error occurred with the ESpeak service: %r" % (ex, ))
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def _primary_selection_cb(self, clipboard, text, user_data):
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logging.debug('KeyHandler._primary_selection_cb: %r' % text)
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if text:
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self._get_speech_proxy().SayText(text, reply_handler=lambda: None, \
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error_handler=self._on_speech_err)
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def handle_say_text(self):
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clipboard = gtk.clipboard_get(selection="PRIMARY")
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clipboard.request_text(self._primary_selection_cb)
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def handle_previous_window(self):
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self._shell.activate_previous_activity()
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def handle_next_window(self):
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self._shell.activate_next_activity()
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def handle_close_window(self):
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self._shell.close_current_activity()
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def handle_zoom_mesh(self):
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self._shell.set_zoom_level(ShellModel.ZOOM_MESH)
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def handle_zoom_friends(self):
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self._shell.set_zoom_level(ShellModel.ZOOM_FRIENDS)
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def handle_zoom_home(self):
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self._shell.set_zoom_level(ShellModel.ZOOM_HOME)
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def handle_zoom_activity(self):
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self._shell.set_zoom_level(ShellModel.ZOOM_ACTIVITY)
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def handle_brightness_max(self):
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self._change_brightness(value=_BRIGHTNESS_MAX)
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def handle_brightness_min(self):
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self._change_brightness(value=0)
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def handle_volume_max(self):
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self._change_volume(value=_VOLUME_MAX)
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def handle_volume_min(self):
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self._change_volume(value=0)
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def handle_brightness_up(self):
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self._change_brightness(step=_BRIGHTNESS_STEP)
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def handle_brightness_down(self):
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self._change_brightness(step=-_BRIGHTNESS_STEP)
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def handle_volume_up(self):
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self._change_volume(step=_VOLUME_STEP)
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def handle_volume_down(self):
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self._change_volume(step=-_VOLUME_STEP)
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def handle_screenshot(self):
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self._shell.take_screenshot()
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def handle_frame(self):
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self._shell.get_frame().notify_key_press()
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def handle_overlay(self):
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self._shell.toggle_chat_visibility()
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def handle_rotate(self):
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states = [ 'normal', 'left', 'inverted', 'right']
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self._screen_rotation += 1
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if self._screen_rotation == len(states):
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self._screen_rotation = 0
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gobject.spawn_async(['xrandr', '-o', states[self._screen_rotation]],
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flags=gobject.SPAWN_SEARCH_PATH)
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def handle_quit_emulator(self):
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if os.environ.has_key('SUGAR_EMULATOR_PID'):
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pid = int(os.environ['SUGAR_EMULATOR_PID'])
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os.kill(pid, signal.SIGTERM)
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def focus_journal_search(self):
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bus = dbus.SessionBus()
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obj = bus.get_object(J_DBUS_SERVICE, J_DBUS_PATH)
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journal = dbus.Interface(obj, J_DBUS_INTERFACE)
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journal.FocusSearch({})
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def handle_open_search(self):
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self.focus_journal_search()
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def _key_pressed_cb(self, grabber, keycode, state):
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key = grabber.get_key(keycode, state)
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logging.debug('_key_pressed_cb: %i %i %s' % (keycode, state, key))
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if key:
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self._key_pressed = key
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self._keycode_pressed = keycode
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self._keystate_pressed = state
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"""
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status = gtk.gdk.keyboard_grab(gtk.gdk.get_default_root_window(),
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owner_events=False, time=0L)
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if status != gtk.gdk.GRAB_SUCCESS:
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logging.error("KeyHandler._key_pressed_cb(): keyboard grab failed: " + status)
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"""
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action = _actions_table[key]
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method = getattr(self, 'handle_' + action)
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method()
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return True
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return False
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