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299 lines
10 KiB
Python
299 lines
10 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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from gettext import gettext as _
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from sets import Set
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import logging
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import tempfile
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import os
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import time
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import shutil
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import gobject
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import gtk
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import wnck
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import dbus
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from sugar.activity.activityhandle import ActivityHandle
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from sugar import activity
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from sugar.activity import activityfactory
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from sugar.datastore import datastore
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from sugar import profile
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from sugar import env
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from view.ActivityHost import ActivityHost
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from view.frame.frame import Frame
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from view.keyhandler import KeyHandler
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from view.home.HomeWindow import HomeWindow
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from model.shellmodel import ShellModel
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# #3903 - this constant can be removed and assumed to be 1 when dbus-python
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# 0.82.3 is the only version used
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if dbus.version >= (0, 82, 3):
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DBUS_PYTHON_TIMEOUT_UNITS_PER_SECOND = 1
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else:
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DBUS_PYTHON_TIMEOUT_UNITS_PER_SECOND = 1000
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class Shell(gobject.GObject):
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def __init__(self, model):
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gobject.GObject.__init__(self)
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self._activities_starting = Set()
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self._model = model
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self._hosts = {}
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self._screen = wnck.screen_get_default()
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self._current_host = None
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self._pending_host = None
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self._screen_rotation = 0
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self._zoom_level = ShellModel.ZOOM_HOME
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self._key_handler = KeyHandler(self)
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self._frame = Frame(self)
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self._home_window = HomeWindow(self)
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self._home_window.show()
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home_model = self._model.get_home()
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home_model.connect('activity-started', self._activity_started_cb)
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home_model.connect('activity-removed', self._activity_removed_cb)
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home_model.connect('active-activity-changed',
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self._active_activity_changed_cb)
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home_model.connect('pending-activity-changed',
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self._pending_activity_changed_cb)
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self._model.connect('notify::zoom-level', self._zoom_level_changed_cb)
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gobject.idle_add(self._start_journal_idle)
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def _start_journal_idle(self):
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# Mount the datastore in internal flash
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ds_path = env.get_profile_path('datastore')
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try:
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datastore.mount(ds_path, [], timeout=120 * \
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DBUS_PYTHON_TIMEOUT_UNITS_PER_SECOND)
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except:
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# Don't explode if there's corruption; move the data out of the way
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# and attempt to create a store from scratch.
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shutil.move(ds_path, os.path.abspath(ds_path) + str(time.time()))
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datastore.mount(ds_path, [], timeout=120 * \
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DBUS_PYTHON_TIMEOUT_UNITS_PER_SECOND)
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# Checking for the bundle existence will also ensure
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# that the shell service is started up.
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registry = activity.get_registry()
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if registry.get_activity('org.laptop.JournalActivity'):
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self.start_activity('org.laptop.JournalActivity')
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def _activity_started_cb(self, home_model, home_activity):
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activity_host = ActivityHost(home_activity)
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self._hosts[activity_host.get_xid()] = activity_host
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if home_activity.get_type() in self._activities_starting:
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self._activities_starting.remove(home_activity.get_type())
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def _activity_removed_cb(self, home_model, home_activity):
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if home_activity.get_type() in self._activities_starting:
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self._activities_starting.remove(home_activity.get_type())
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xid = home_activity.get_xid()
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if self._hosts.has_key(xid):
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self._hosts[xid].destroy()
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del self._hosts[xid]
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def _active_activity_changed_cb(self, home_model, home_activity):
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if home_activity:
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host = self._hosts[home_activity.get_xid()]
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else:
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host = None
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if self._current_host:
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self._current_host.set_active(False)
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self._current_host = host
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def _pending_activity_changed_cb(self, home_model, home_activity):
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if home_activity:
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self._pending_host = self._hosts[home_activity.get_xid()]
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else:
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self._pending_host = None
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def get_model(self):
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return self._model
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def get_frame(self):
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return self._frame
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def join_activity(self, bundle_id, activity_id):
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activity_host = self.get_activity(activity_id)
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if activity_host:
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activity_host.present()
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return
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# Get the service name for this activity, if
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# we have a bundle on the system capable of handling
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# this activity type
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registry = activity.get_registry()
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bundle = registry.get_activity(bundle_id)
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if not bundle:
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logging.error("Couldn't find activity for type %s" % bundle_id)
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return
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handle = ActivityHandle(activity_id)
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activityfactory.create(bundle_id, handle)
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def notify_launch(self, bundle_id, activity_id):
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# Zoom to Home for launch feedback
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self.set_zoom_level(ShellModel.ZOOM_HOME)
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home_model = self._model.get_home()
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home_model.notify_activity_launch(activity_id, bundle_id)
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def notify_launch_failure(self, activity_id):
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home_model = self._model.get_home()
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home_model.notify_activity_launch_failed(activity_id)
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def start_activity(self, activity_type):
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if activity_type in self._activities_starting:
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logging.debug("This activity is still launching.")
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return
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self._activities_starting.add(activity_type)
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activityfactory.create(activity_type)
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def take_activity_screenshot(self):
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if self._model.get_zoom_level() != ShellModel.ZOOM_ACTIVITY:
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return
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if self.get_frame().visible:
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return
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home_model = self._model.get_home()
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activity = home_model.get_active_activity()
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if activity is not None:
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service = activity.get_service()
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if service is not None:
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try:
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service.TakeScreenshot(timeout=2.0)
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except dbus.DBusException, e:
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logging.debug('Error raised by TakeScreenshot(): %s', e)
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def set_zoom_level(self, level):
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if level == self._zoom_level:
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return
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self.take_activity_screenshot()
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if level == ShellModel.ZOOM_ACTIVITY:
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if self._pending_host is not None:
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self._pending_host.present()
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self._screen.toggle_showing_desktop(False)
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else:
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self._model.set_zoom_level(level)
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self._screen.toggle_showing_desktop(True)
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self._home_window.set_zoom_level(level)
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def _zoom_level_changed_cb(self, model, pspec):
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new_level = model.props.zoom_level
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if new_level == ShellModel.ZOOM_HOME:
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self._frame.show(Frame.MODE_NON_INTERACTIVE)
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if self._zoom_level == ShellModel.ZOOM_HOME:
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self._frame.hide()
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self._zoom_level = new_level
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def toggle_activity_fullscreen(self):
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if self._model.get_zoom_level() == ShellModel.ZOOM_ACTIVITY:
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self.get_current_activity().toggle_fullscreen()
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def activate_previous_activity(self):
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home_model = self._model.get_home()
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activity = home_model.get_previous_activity()
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if activity:
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self.take_activity_screenshot()
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activity.get_window().activate(1)
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def activate_next_activity(self):
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home_model = self._model.get_home()
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activity = home_model.get_next_activity()
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if activity:
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self.take_activity_screenshot()
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activity.get_window().activate(1)
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def close_current_activity(self):
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if self._model.get_zoom_level() != ShellModel.ZOOM_ACTIVITY:
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return
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home_model = self._model.get_home()
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activity = home_model.get_active_activity()
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if activity.get_type() == 'org.laptop.JournalActivity':
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return
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self.take_activity_screenshot()
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self.get_current_activity().close()
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def get_current_activity(self):
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return self._current_host
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def get_activity(self, activity_id):
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for host in self._hosts.values():
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if host.get_id() == activity_id:
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return host
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return None
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def toggle_chat_visibility(self):
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act = self.get_current_activity()
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if not act:
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return
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is_visible = self._frame.is_visible()
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if act.is_chat_visible():
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frame_was_visible = act.chat_hide()
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if not frame_was_visible:
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self._frame.do_slide_out()
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else:
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if not is_visible:
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self._frame.do_slide_in()
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act.chat_show(is_visible)
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def take_screenshot(self):
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file_path = os.path.join(tempfile.gettempdir(), '%i' % time.time())
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window = gtk.gdk.get_default_root_window()
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width, height = window.get_size()
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x_orig, y_orig = window.get_origin()
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screenshot = gtk.gdk.Pixbuf(gtk.gdk.COLORSPACE_RGB, has_alpha=False,
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bits_per_sample=8, width=width, height=height)
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screenshot.get_from_drawable(window, window.get_colormap(), x_orig, y_orig, 0, 0,
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width, height)
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screenshot.save(file_path, "png")
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try:
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jobject = datastore.create()
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try:
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jobject.metadata['title'] = _('Screenshot')
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jobject.metadata['keep'] = '0'
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jobject.metadata['buddies'] = ''
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jobject.metadata['preview'] = ''
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jobject.metadata['icon-color'] = profile.get_color().to_string()
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jobject.metadata['mime_type'] = 'image/png'
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jobject.file_path = file_path
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datastore.write(jobject)
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finally:
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jobject.destroy()
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del jobject
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finally:
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os.remove(file_path)
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