348 lines
12 KiB
Python
348 lines
12 KiB
Python
"""Base class for Python-coded activities
|
|
|
|
This is currently the only reference for what an
|
|
activity must do to participate in the Sugar desktop.
|
|
"""
|
|
# Copyright (C) 2006, Red Hat, Inc.
|
|
#
|
|
# This library is free software; you can redistribute it and/or
|
|
# modify it under the terms of the GNU Lesser General Public
|
|
# License as published by the Free Software Foundation; either
|
|
# version 2 of the License, or (at your option) any later version.
|
|
#
|
|
# This library 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
|
|
# Lesser General Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU Lesser General Public
|
|
# License along with this library; if not, write to the
|
|
# Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
|
# Boston, MA 02111-1307, USA.
|
|
|
|
import logging
|
|
import os
|
|
import time
|
|
|
|
import gtk, gobject
|
|
|
|
from sugar.presence import presenceservice
|
|
from sugar.activity.activityservice import ActivityService
|
|
from sugar.activity import bundleregistry
|
|
from sugar.graphics.window import Window
|
|
from sugar.graphics.toolbox import Toolbox
|
|
from sugar.graphics.toolbutton import ToolButton
|
|
from sugar.datastore import datastore
|
|
from sugar import profile
|
|
|
|
class ActivityToolbar(gtk.Toolbar):
|
|
def __init__(self, activity):
|
|
gtk.Toolbar.__init__(self)
|
|
|
|
self._activity = activity
|
|
activity.connect('shared', self._activity_shared_cb)
|
|
activity.connect('joined', self._activity_shared_cb)
|
|
|
|
if activity.jobject:
|
|
self.title = gtk.Entry()
|
|
self.title.set_size_request(int(gtk.gdk.screen_width() / 6), -1)
|
|
self.title.set_text(activity.jobject['title'])
|
|
self.title.connect('focus-out-event', self._title_focus_out_event_cb)
|
|
self._add_widget(self.title)
|
|
|
|
activity.jobject.connect('updated', self._jobject_updated_cb)
|
|
|
|
separator = gtk.SeparatorToolItem()
|
|
separator.props.draw = False
|
|
separator.set_expand(True);
|
|
self.insert(separator, -1)
|
|
separator.show()
|
|
|
|
self.share = ToolButton('stock-share-mesh')
|
|
self.share.connect('clicked', self._share_clicked_cb)
|
|
self.insert(self.share, -1)
|
|
if activity.get_shared():
|
|
self.share.set_sensitive(False)
|
|
self.share.show()
|
|
|
|
separator = gtk.SeparatorToolItem()
|
|
separator.props.draw = False
|
|
self.insert(separator, -1)
|
|
separator.show()
|
|
|
|
self.close = ToolButton('window-close')
|
|
self.close.connect('clicked', self._close_clicked_cb)
|
|
self.insert(self.close, -1)
|
|
self.close.show()
|
|
|
|
def _share_clicked_cb(self, button):
|
|
self._activity.share()
|
|
|
|
def _close_clicked_cb(self, button):
|
|
self._activity.close()
|
|
|
|
def _jobject_updated_cb(self, jobject):
|
|
self.title.set_text(jobject['title'])
|
|
|
|
def _title_focus_out_event_cb(self, entry, event):
|
|
if self._activity.jobject['title'] != self.title.get_text():
|
|
self._activity.jobject['title'] = self.title.get_text()
|
|
self._activity.save()
|
|
|
|
def _add_widget(self, widget, expand=False):
|
|
tool_item = gtk.ToolItem()
|
|
tool_item.set_expand(expand)
|
|
|
|
tool_item.add(widget)
|
|
widget.show()
|
|
|
|
self.insert(tool_item, -1)
|
|
tool_item.show()
|
|
|
|
def _activity_shared_cb(self, activity):
|
|
self.share.set_sensitive(False)
|
|
|
|
class EditToolbar(gtk.Toolbar):
|
|
def __init__(self):
|
|
gtk.Toolbar.__init__(self)
|
|
|
|
self.undo = ToolButton('edit-undo')
|
|
self.insert(self.undo, -1)
|
|
self.undo.show()
|
|
|
|
self.redo = ToolButton('edit-redo')
|
|
self.insert(self.redo, -1)
|
|
self.redo.show()
|
|
|
|
separator = gtk.SeparatorToolItem()
|
|
separator.set_draw(True)
|
|
self.insert(separator, -1)
|
|
separator.show()
|
|
|
|
self.copy = ToolButton('edit-copy')
|
|
self.insert(self.copy, -1)
|
|
self.copy.show()
|
|
|
|
self.paste = ToolButton('edit-paste')
|
|
self.insert(self.paste, -1)
|
|
self.paste.show()
|
|
|
|
class ActivityToolbox(Toolbox):
|
|
def __init__(self, activity):
|
|
Toolbox.__init__(self)
|
|
|
|
self._activity_toolbar = ActivityToolbar(activity)
|
|
self.add_toolbar('Activity', self._activity_toolbar)
|
|
self._activity_toolbar.show()
|
|
|
|
def get_activity_toolbar(self):
|
|
return self._activity_toolbar
|
|
|
|
class Activity(Window, gtk.Container):
|
|
"""Base Activity class that all other Activities derive from."""
|
|
__gtype_name__ = 'SugarActivity'
|
|
|
|
__gsignals__ = {
|
|
'shared': (gobject.SIGNAL_RUN_FIRST, gobject.TYPE_NONE, ([])),
|
|
'joined': (gobject.SIGNAL_RUN_FIRST, gobject.TYPE_NONE, ([]))
|
|
}
|
|
|
|
__gproperties__ = {
|
|
'active': (bool, None, None, False, gobject.PARAM_READWRITE)
|
|
}
|
|
|
|
def __init__(self, handle, create_jobject=True):
|
|
"""Initialise the Activity
|
|
|
|
handle -- sugar.activity.activityhandle.ActivityHandle
|
|
instance providing the activity id and access to the
|
|
presence service which *may* provide sharing for this
|
|
application
|
|
|
|
create_jobject -- boolean
|
|
define if it should create a journal object if we are
|
|
not resuming
|
|
|
|
Side effects:
|
|
|
|
Sets the gdk screen DPI setting (resolution) to the
|
|
Sugar screen resolution.
|
|
|
|
Connects our "destroy" message to our _destroy_cb
|
|
method.
|
|
|
|
Creates a base gtk.Window within this window.
|
|
|
|
Creates an ActivityService (self._bus) servicing
|
|
this application.
|
|
"""
|
|
Window.__init__(self)
|
|
|
|
self.connect('destroy', self._destroy_cb)
|
|
|
|
self._active = False
|
|
self._activity_id = handle.activity_id
|
|
self._pservice = presenceservice.get_instance()
|
|
self._shared_activity = None
|
|
self._share_id = None
|
|
self._join_id = None
|
|
|
|
shared_activity = handle.get_shared_activity()
|
|
if shared_activity:
|
|
# Join an existing instance of this activity on the network
|
|
self._shared_activity = shared_activity
|
|
self._join_id = self._shared_activity.connect("joined", self._internal_joined_cb)
|
|
if not self._shared_activity.props.joined:
|
|
self._shared_activity.join()
|
|
else:
|
|
self._internal_joined_cb(self._shared_activity, True, None)
|
|
|
|
self._bus = ActivityService(self)
|
|
|
|
if handle.object_id:
|
|
self.jobject = datastore.get(handle.object_id)
|
|
self.jobject.object_id = ''
|
|
del self.jobject['ctime']
|
|
del self.jobject['mtime']
|
|
elif create_jobject:
|
|
logging.debug('Creating a jobject.')
|
|
self.jobject = datastore.create()
|
|
self.jobject['title'] = '%s %s' % (get_bundle_name(), 'Activity')
|
|
self.jobject['activity'] = self.get_service_name()
|
|
self.jobject['icon'] = self._get_icon()
|
|
self.jobject['keep'] = '0'
|
|
self.jobject['buddies'] = ''
|
|
self.jobject['preview'] = ''
|
|
self.jobject['icon-color'] = profile.get_color().to_string()
|
|
self.jobject.file_path = ''
|
|
datastore.write(self.jobject,
|
|
reply_handler=self._internal_jobject_create_cb,
|
|
error_handler=self._internal_jobject_error_cb)
|
|
else:
|
|
self.jobject = None
|
|
|
|
def do_set_property(self, pspec, value):
|
|
if pspec.name == 'active':
|
|
if self._active != value:
|
|
self._active = value
|
|
if not self._active and self.jobject:
|
|
self.save()
|
|
|
|
def do_get_property(self, pspec):
|
|
if pspec.name == 'active':
|
|
return self._active
|
|
|
|
def _internal_jobject_create_cb(self):
|
|
pass
|
|
|
|
def _internal_jobject_error_cb(self, err):
|
|
logging.debug("Error creating activity datastore object: %s" % err)
|
|
|
|
def read_file(self):
|
|
"""
|
|
Subclasses implement this method if they support resuming objects from
|
|
the journal. Can access the object through the jobject attribute.
|
|
"""
|
|
raise NotImplementedError
|
|
|
|
def write_file(self):
|
|
"""
|
|
Subclasses implement this method if they support saving data to objects
|
|
in the journal. Can access the object through the jobject attribute.
|
|
"""
|
|
raise NotImplementedError
|
|
|
|
def _internal_save_cb(self):
|
|
pass
|
|
|
|
def _internal_save_error_cb(self, err):
|
|
logging.debug("Error saving activity object to datastore: %s" % err)
|
|
|
|
def save(self):
|
|
"""Request that the activity is saved to the Journal."""
|
|
try:
|
|
self.jobject.file_path = os.path.join('/tmp', '%i.txt' % time.time())
|
|
self.write_file()
|
|
except NotImplementedError:
|
|
self.jobject.file_path = ''
|
|
datastore.write(self.jobject,
|
|
reply_handler=self._internal_save_cb,
|
|
error_handler=self._internal_save_error_cb)
|
|
|
|
def _internal_joined_cb(self, activity, success, err):
|
|
"""Callback when join has finished"""
|
|
self._shared_activity.disconnect(self._join_id)
|
|
self._join_id = None
|
|
if not success:
|
|
logging.debug("Failed to join activity: %s" % err)
|
|
return
|
|
self.present()
|
|
self.emit('joined')
|
|
|
|
def get_service_name(self):
|
|
"""Gets the activity service name."""
|
|
return os.environ['SUGAR_BUNDLE_SERVICE_NAME']
|
|
|
|
def get_shared(self):
|
|
"""Returns TRUE if the activity is shared on the mesh."""
|
|
if not self._shared_activity:
|
|
return False
|
|
return self._shared_activity.props.joined
|
|
|
|
def get_id(self):
|
|
"""Get the unique activity identifier."""
|
|
return self._activity_id
|
|
|
|
def _internal_share_cb(self, ps, success, activity, err):
|
|
self._pservice.disconnect(self._share_id)
|
|
self._share_id = None
|
|
if not success:
|
|
logging.debug('Share of activity %s failed: %s.' % (self._activity_id, err))
|
|
return
|
|
logging.debug('Share of activity %s successful.' % self._activity_id)
|
|
self._shared_activity = activity
|
|
self.emit('shared')
|
|
|
|
def share(self):
|
|
"""Request that the activity be shared on the network."""
|
|
if self._shared_activity and self._shared_activity.props.joined:
|
|
raise RuntimeError("Activity %s already shared." % self._activity_id)
|
|
logging.debug('Requesting share of activity %s.' % self._activity_id)
|
|
self._share_id = self._pservice.connect("activity-shared", self._internal_share_cb)
|
|
self._pservice.share_activity(self)
|
|
|
|
def execute(self, command, args):
|
|
"""Execute the given command with args"""
|
|
return False
|
|
|
|
def _destroy_cb(self, window):
|
|
"""Destroys our ActivityService and sharing service"""
|
|
if self._bus:
|
|
del self._bus
|
|
self._bus = None
|
|
if self._shared_activity:
|
|
self._shared_activity.leave()
|
|
|
|
def close(self):
|
|
if self.jobject:
|
|
try:
|
|
self.save()
|
|
except:
|
|
self.destroy()
|
|
raise
|
|
self.destroy()
|
|
|
|
def _get_icon(self):
|
|
registry = bundleregistry.get_registry()
|
|
return registry.get_bundle(self.get_service_name()).get_icon()
|
|
|
|
def get_bundle_name():
|
|
"""Return the bundle name for the current process' bundle
|
|
"""
|
|
return os.environ['SUGAR_BUNDLE_NAME']
|
|
|
|
def get_bundle_path():
|
|
"""Return the bundle path for the current process' bundle
|
|
"""
|
|
return os.environ['SUGAR_BUNDLE_PATH']
|