+++ /dev/null
-# -*- coding: utf-8 -*-
-#
-# gPodder - A media aggregator and podcast client
-# Copyright (c) 2005-2010 Thomas Perl and the gPodder Team
-#
-# gPodder is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 3 of the License, or
-# (at your option) any later version.
-#
-# gPodder 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 General Public License
-# along with this program. If not, see <http://www.gnu.org/licenses/>.
-#
-
-import dbus
-import dbus.glib
-
-import hildon
-import osso
-
-# Replace this with your own gettext() functionality
-import gpodder
-_ = gpodder.gettext
-
-
-class FremantleRotation(object):
- """thp's screen rotation for Maemo 5
-
- Simply instantiate an object of this class and let it auto-rotate
- your StackableWindows depending on the device orientation.
-
- If you need to relayout a window, connect to its "configure-event"
- signal and measure the ratio of width/height and relayout for that.
-
- You can set the mode for rotation to AUTOMATIC (default), NEVER or
- ALWAYS with the set_mode() method.
- """
- AUTOMATIC, NEVER, ALWAYS = range(3)
-
- # Human-readable captions for the above constants
- MODE_CAPTIONS = (_('Automatic'), _('Landscape'), _('Portrait'))
-
- # Privately-used constants
- _PORTRAIT, _LANDSCAPE = ('portrait', 'landscape')
- _ENABLE_ACCEL = 'req_accelerometer_enable'
- _DISABLE_ACCEL = 'req_accelerometer_disable'
-
- # Defined in mce/dbus-names.h
- _MCE_SERVICE = 'com.nokia.mce'
- _MCE_REQUEST_PATH = '/com/nokia/mce/request'
- _MCE_REQUEST_IF = 'com.nokia.mce.request'
-
- def __init__(self, app_name, main_window=None, version='1.0', mode=0):
- """Create a new rotation manager
-
- app_name ... The name of your application (for osso.Context)
- main_window ... The root window (optional, hildon.StackableWindow)
- version ... The version of your application (optional, string)
- mode ... Initial mode for this manager (default: AUTOMATIC)
- """
- self._orientation = None
- self._main_window = main_window
- self._stack = hildon.WindowStack.get_default()
- self._mode = -1
- self._last_dbus_orientation = None
- app_id = '-'.join((app_name, self.__class__.__name__))
- self._osso_context = osso.Context(app_id, version, False)
- program = hildon.Program.get_instance()
- program.connect('notify::is-topmost', self._on_topmost_changed)
- system_bus = dbus.Bus.get_system()
- system_bus.add_signal_receiver(self._on_orientation_signal, \
- signal_name='sig_device_orientation_ind', \
- dbus_interface='com.nokia.mce.signal', \
- path='/com/nokia/mce/signal')
- self.set_mode(mode)
-
- def get_mode(self):
- """Get the currently-set rotation mode
-
- This will return one of three values: AUTOMATIC, ALWAYS or NEVER.
- """
- return self._mode
-
- def set_mode(self, new_mode):
- """Set the rotation mode
-
- You can set the rotation mode to AUTOMATIC (use hardware rotation
- info), ALWAYS (force portrait) and NEVER (force landscape).
- """
- if new_mode not in (self.AUTOMATIC, self.ALWAYS, self.NEVER):
- raise ValueError('Unknown rotation mode')
-
- if self._mode != new_mode:
- if self._mode == self.AUTOMATIC:
- # Remember the current "automatic" orientation for later
- self._last_dbus_orientation = self._orientation
- # Tell MCE that we don't need the accelerometer anymore
- self._send_mce_request(self._DISABLE_ACCEL)
-
- if new_mode == self.NEVER:
- self._orientation_changed(self._LANDSCAPE)
- elif new_mode == self.ALWAYS:
- self._orientation_changed(self._PORTRAIT)
- elif new_mode == self.AUTOMATIC:
- # Restore the last-known "automatic" orientation
- self._orientation_changed(self._last_dbus_orientation)
- # Tell MCE that we need the accelerometer again
- self._send_mce_request(self._ENABLE_ACCEL)
-
- self._mode = new_mode
-
- def _send_mce_request(self, request):
- rpc = osso.Rpc(self._osso_context)
- rpc.rpc_run(self._MCE_SERVICE, \
- self._MCE_REQUEST_PATH, \
- self._MCE_REQUEST_IF, \
- request, \
- use_system_bus=True)
-
- def _on_topmost_changed(self, program, property_spec):
- # XXX: This seems to never get called on Fremantle(?)
- if self._mode == self.AUTOMATIC:
- if program.get_is_topmost():
- self._send_mce_request(self._ENABLE_ACCEL)
- else:
- self._send_mce_request(self._DISABLE_ACCEL)
-
- def _get_main_window(self):
- if self._main_window:
- # If we have gotten the main window as parameter, return it and
- # don't try "harder" to find another window using the stack
- return self._main_window
- else:
- # The main window is at the "bottom" of the window stack, and as
- # the list we get with get_windows() is sorted "topmost first", we
- # simply take the last item of the list to get our main window
- windows = self._stack.get_windows()
- if windows:
- return windows[-1]
- else:
- return None
-
- def _orientation_changed(self, orientation):
- if self._orientation == orientation:
- # Ignore repeated requests
- return
-
- flags = hildon.PORTRAIT_MODE_SUPPORT
- if orientation == self._PORTRAIT:
- flags |= hildon.PORTRAIT_MODE_REQUEST
-
- window = self._get_main_window()
- if window is not None:
- hildon.hildon_gtk_window_set_portrait_flags(window, flags)
-
- self._orientation = orientation
-
- def _on_orientation_signal(self, orientation, stand, face, x, y, z):
- if orientation in (self._PORTRAIT, self._LANDSCAPE):
- if self._mode == self.AUTOMATIC:
- # Automatically set the rotation based on hardware orientation
- self._orientation_changed(orientation)
- else:
- # Ignore orientation changes for non-automatic modes, but save
- # the current orientation for "automatic" mode later on
- self._last_dbus_orientation = orientation
-
projects / masstransit / blobdiff