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f300006b76
sugar-toolkit-gtk3/shell/view/Shell.py
Marco Pesenti Gritti f300006b76 Move window management keybindings inside sugar. 
Add a TakeScreenshot dbus method and have the shell
call it when the activity can safely take a screenshot
to use as a preview.
2007-10-23 15:19:17 +02:00

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9.1 KiB
Python
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# Copyright (C) 2006-2007 Red Hat, Inc.
#
# This program 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 2 of the License, or
# (at your option) any later version.
#
# 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 General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
from gettext import gettext as _
from sets import Set
import logging
import tempfile
import os
import time
import gobject
import gtk
import wnck
import dbus
from sugar.activity.activityhandle import ActivityHandle
from sugar import activity
from sugar.activity import activityfactory
from sugar.datastore import datastore
from sugar import profile
from sugar import env
from view.ActivityHost import ActivityHost
from view.frame.frame import Frame
from view.keyhandler import KeyHandler
from view.home.HomeWindow import HomeWindow
from model.shellmodel import ShellModel
# #3903 - this constant can be removed and assumed to be 1 when dbus-python
# 0.82.3 is the only version used
if dbus.version >= (0, 82, 3):
DBUS_PYTHON_TIMEOUT_UNITS_PER_SECOND = 1
else:
DBUS_PYTHON_TIMEOUT_UNITS_PER_SECOND = 1000
class Shell(gobject.GObject):
def __init__(self, model):
gobject.GObject.__init__(self)
self._activities_starting = Set()
self._model = model
self._hosts = {}
self._screen = wnck.screen_get_default()
self._current_host = None
self._pending_host = None
self._screen_rotation = 0
self._key_handler = KeyHandler(self)
self._frame = Frame(self)
self._home_window = HomeWindow(self)
self._home_window.show()
home_model = self._model.get_home()
home_model.connect('activity-started', self._activity_started_cb)
home_model.connect('activity-removed', self._activity_removed_cb)
home_model.connect('active-activity-changed',
self._active_activity_changed_cb)
home_model.connect('pending-activity-changed',
self._pending_activity_changed_cb)
gobject.idle_add(self._start_journal_idle)
def _start_journal_idle(self):
# Mount the datastore in internal flash
datastore.mount(env.get_profile_path('datastore'), [],
timeout=120 * DBUS_PYTHON_TIMEOUT_UNITS_PER_SECOND)
# Checking for the bundle existence will also ensure
# that the shell service is started up.
registry = activity.get_registry()
if registry.get_activity('org.laptop.JournalActivity'):
self.start_activity('org.laptop.JournalActivity')
def _activity_started_cb(self, home_model, home_activity):
activity_host = ActivityHost(home_activity)
self._hosts[activity_host.get_xid()] = activity_host
if home_activity.get_type() in self._activities_starting:
self._activities_starting.remove(home_activity.get_type())
def _activity_removed_cb(self, home_model, home_activity):
if home_activity.get_type() in self._activities_starting:
self._activities_starting.remove(home_activity.get_type())
xid = home_activity.get_xid()
if self._hosts.has_key(xid):
self._hosts[xid].destroy()
del self._hosts[xid]
def _active_activity_changed_cb(self, home_model, home_activity):
if home_activity:
host = self._hosts[home_activity.get_xid()]
else:
host = None
if self._current_host:
self._current_host.set_active(False)
self._current_host = host
def _pending_activity_changed_cb(self, home_model, home_activity):
if home_activity:
self._pending_host = self._hosts[home_activity.get_xid()]
else:
self._pending_host = None
def get_model(self):
return self._model
def get_frame(self):
return self._frame
def join_activity(self, bundle_id, activity_id):
activity_host = self.get_activity(activity_id)
if activity_host:
activity_host.present()
return
# Get the service name for this activity, if
# we have a bundle on the system capable of handling
# this activity type
registry = activity.get_registry()
bundle = registry.get_activity(bundle_id)
if not bundle:
logging.error("Couldn't find activity for type %s" % bundle_id)
return
handle = ActivityHandle(activity_id)
activityfactory.create(bundle_id, handle)
def notify_launch(self, bundle_id, activity_id):
# Zoom to Home for launch feedback
self.set_zoom_level(ShellModel.ZOOM_HOME)
home_model = self._model.get_home()
home_model.notify_activity_launch(activity_id, bundle_id)
def notify_launch_failure(self, activity_id):
home_model = self._model.get_home()
home_model.notify_activity_launch_failed(activity_id)
def start_activity(self, activity_type):
if activity_type in self._activities_starting:
logging.debug("This activity is still launching.")
return
self._activities_starting.add(activity_type)
activityfactory.create(activity_type)
def take_activity_screenshot(self):
home_model = self._model.get_home()
service = home_model.get_active_activity().get_service()
service.TakeScreenshot()
def set_zoom_level(self, level):
old_level = self._model.get_zoom_level()
if level == old_level:
return
if old_level == ShellModel.ZOOM_ACTIVITY and \
not self.get_frame().visible:
self.take_activity_screenshot()
if level == ShellModel.ZOOM_ACTIVITY:
if self._pending_host is not None:
self._pending_host.present()
self._screen.toggle_showing_desktop(False)
else:
self._model.set_zoom_level(level)
self._screen.toggle_showing_desktop(True)
self._home_window.set_zoom_level(level)
def toggle_activity_fullscreen(self):
if self._model.get_zoom_level() == ShellModel.ZOOM_ACTIVITY:
self.get_current_activity().toggle_fullscreen()
def activate_previous_activity(self):
home_model = self._model.get_home()
activity = home_model.get_previous_activity()
if activity:
self.take_activity_screenshot()
activity.get_window().activate(1)
def activate_next_activity(self):
home_model = self._model.get_home()
activity = home_model.get_next_activity()
if activity:
self.take_activity_screenshot()
activity.get_window().activate(1)
def close_current_activity(self):
self.take_activity_screenshot()
if self._model.get_zoom_level() == ShellModel.ZOOM_ACTIVITY:
self.get_current_activity().close()
def get_current_activity(self):
return self._current_host
def get_activity(self, activity_id):
for host in self._hosts.values():
if host.get_id() == activity_id:
return host
return None
def toggle_chat_visibility(self):
act = self.get_current_activity()
if not act:
return
is_visible = self._frame.is_visible()
if act.is_chat_visible():
frame_was_visible = act.chat_hide()
if not frame_was_visible:
self._frame.do_slide_out()
else:
if not is_visible:
self._frame.do_slide_in()
act.chat_show(is_visible)
def take_screenshot(self):
file_path = os.path.join(tempfile.gettempdir(), '%i' % time.time())
window = gtk.gdk.get_default_root_window()
width, height = window.get_size()
x_orig, y_orig = window.get_origin()
screenshot = gtk.gdk.Pixbuf(gtk.gdk.COLORSPACE_RGB, has_alpha=False,
bits_per_sample=8, width=width, height=height)
screenshot.get_from_drawable(window, window.get_colormap(), x_orig, y_orig, 0, 0,
width, height)
screenshot.save(file_path, "png")
try:
jobject = datastore.create()
try:
jobject.metadata['title'] = _('Screenshot')
jobject.metadata['keep'] = '0'
jobject.metadata['buddies'] = ''
jobject.metadata['preview'] = ''
jobject.metadata['icon-color'] = profile.get_color().to_string()
jobject.metadata['mime_type'] = 'image/png'
jobject.file_path = file_path
datastore.write(jobject)
finally:
jobject.destroy()
del jobject
finally:
os.remove(file_path)
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