Redo activity bundles in terms of sugar.bundle.bundle

services/shell/bundleregistry.py

@@ -18,7 +18,8 @@ import os
 
 import gobject
 
-from sugar.activity.bundle import Bundle
+from sugar.bundle.activitybundle import ActivityBundle
+from sugar.bundle.bundle import MalformedBundleException
 from sugar import env
 from sugar import util
 
@@ -122,14 +123,15 @@ class BundleRegistry(gobject.GObject):
             self.add_bundle(dir)
 
     def add_bundle(self, bundle_path):
-        bundle = Bundle(bundle_path)
+        try:
-        if bundle.is_valid():
+            bundle = ActivityBundle(bundle_path)
+        except MalformedBundleException:
+            return False
+
         self._bundles.append(bundle)
         self._service_manager.add(bundle)
         self.emit('bundle-added', bundle)
         return True
-        else:
-            return False
 
     def get_activities_for_type(self, mime_type):
         result = []

shell/view/clipboardicon.py

@@ -26,6 +26,7 @@ from sugar.graphics.xocolor import XoColor
 from sugar.graphics.icon import Icon
 from sugar.graphics import style
 from sugar.clipboard import clipboardservice
+from sugar.bundle.activitybundle import ActivityBundle
 from sugar import util
 from sugar import profile
 
@@ -63,8 +64,8 @@ class ClipboardIcon(RadioToolButton):
 
     def _is_bundle(self, formats):
         # A bundle will have only one format.
-        return formats and formats[0] in ['application/vnd.olpc-sugar',
+        return formats and formats[0] in [ActivityBundle.MIME_TYPE,
-                                          'application/vnd.olpc-x-sugar']
+                                          ActivityBundle.DEPRECATED_MIME_TYPE]
 
     def get_object_id(self):
         return self._object_id

sugar/activity/Makefile.am

@@ -6,6 +6,5 @@ sugar_PYTHON =				\
 	activityfactoryservice.py	\
 	activityhandle.py		\
 	activityservice.py		\
-	bundle.py			\
 	bundlebuilder.py		\
 	registry.py

sugar/activity/activityfactoryservice.py

@@ -28,7 +28,7 @@ import dbus
 import dbus.service
 import dbus.glib
 
-from sugar.activity.bundle import Bundle
+from sugar.bundle.activitybundle import ActivityBundle
 from sugar.activity import activityhandle
 from sugar import logger
 from sugar import _sugarext
@@ -155,7 +155,7 @@ def run_with_args(args):
 def run(bundle_path):
     sys.path.append(bundle_path)
 
-    bundle = Bundle(bundle_path)
+    bundle = ActivityBundle(bundle_path)
 
     logger.start(bundle.get_service_name())
 

sugar/activity/bundle.py

@@ -1,318 +0,0 @@
-# Copyright (C) 2007, 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.
-
-"""Metadata description of a given application/activity"""
-
-import logging
-import locale
-import os
-import zipfile
-from ConfigParser import ConfigParser
-import StringIO
-import tempfile
-
-import dbus
-
-from sugar import env
-from sugar import activity
-from sugar.bundle.bundle import AlreadyInstalledException, \
-     NotInstalledException, InvalidPathException, ZipExtractException, \
-     RegistrationException, MalformedBundleException
-
-_PYTHON_FACTORY='sugar-activity-factory'
-
-_DBUS_SHELL_SERVICE = "org.laptop.Shell"
-_DBUS_SHELL_PATH = "/org/laptop/Shell"
-_DBUS_ACTIVITY_REGISTRY_IFACE = "org.laptop.Shell.ActivityRegistry"
-
-class Bundle:
-    """Metadata description of a given application/activity
-    
-    The metadata is normally read from an activity.info file,
-    which is an INI-style configuration file read using the 
-    standard Python ConfigParser module.
-    
-    The format reference for the Bundle definition files is 
-    available for further reference:
-    
-        http://wiki.laptop.org/go/Activity_bundles
-    """
-    def __init__(self, path):
-        self._init_with_path(path)
-
-    def _init_with_path(self, path):
-        self.activity_class = None
-        self.bundle_exec = None
-
-        self._name = None
-        self._icon = None
-        self._service_name = None
-        self._mime_types = None
-        self._show_launcher = True
-        self._valid = True
-        self._path = path
-        self._activity_version = 0
-
-        info_file = self._get_info_file()
-        if info_file:
-            self._parse_info(info_file)
-        else:
-            self._valid = False
-
-        linfo_file = self._get_linfo_file()
-        if linfo_file:
-            self._parse_linfo(linfo_file)
-
-    def _get_info_file(self):
-        info_file = None
-
-        if os.path.isdir(self._path):
-            info_path = os.path.join(self._path, 'activity', 'activity.info')
-            if os.path.isfile(info_path):
-                info_file = open(info_path)
-        else:
-            zip_file = zipfile.ZipFile(self._path)
-            file_names = zip_file.namelist()
-            root_dir = self._get_bundle_root_dir(file_names)
-            info_path = os.path.join(root_dir, 'activity', 'activity.info')
-            if info_path in file_names:
-                info_data = zip_file.read(info_path)
-                info_file = StringIO.StringIO(info_data)
-            zip_file.close()
-
-        return info_file
-
-    def _parse_info(self, info_file):
-        cp = ConfigParser()
-        cp.readfp(info_file)
-
-        section = 'Activity'
-
-        if cp.has_option(section, 'service_name'):
-            self._service_name = cp.get(section, 'service_name')
-        else:
-            self._valid = False
-            logging.error('%s must specify a service name' % self._path)
-
-        if cp.has_option(section, 'name'):
-            self._name = cp.get(section, 'name')
-        else:
-            self._valid = False
-            logging.error('%s must specify a name' % self._path)
-
-        if cp.has_option(section, 'class'):
-            self.activity_class = cp.get(section, 'class')
-        elif cp.has_option(section, 'exec'):
-            self.bundle_exec = cp.get(section, 'exec')
-        else:
-            self._valid = False
-            logging.error('%s must specify exec or class' % self._path)
-
-        if cp.has_option(section, 'mime_types'):
-            mime_list = cp.get(section, 'mime_types')
-            self._mime_types = mime_list.strip(';').split(';')
-
-        if cp.has_option(section, 'show_launcher'):
-            if cp.get(section, 'show_launcher') == 'no':
-                self._show_launcher = False
-
-        if cp.has_option(section, 'icon'):
-            self._icon = cp.get(section, 'icon')
-
-        if cp.has_option(section, 'activity_version'):
-            version = cp.get(section, 'activity_version')
-            try:
-                self._activity_version = int(version)
-            except ValueError:
-                self._valid = False
-
-    def _parse_linfo(self, linfo_file):
-        cp = ConfigParser()
-        cp.readfp(linfo_file)
-
-        section = 'Activity'
-
-        if cp.has_option(section, 'name'):
-            self._name = cp.get(section, 'name')
-
-    def _get_linfo_file(self):
-        linfo_file = None
-
-        lang = locale.getdefaultlocale()[0]
-        if not lang:
-            return None
-
-        if os.path.isdir(self._path):
-            linfo_path = os.path.join(self.get_locale_path(), lang, 'activity.linfo')
-            if not os.path.isfile(linfo_path):
-                linfo_path = os.path.join(self.get_locale_path(), lang[:2], 'activity.linfo')
-            if os.path.isfile(linfo_path):
-                linfo_file = open(linfo_path)
-        else:
-            zip_file = zipfile.ZipFile(self._path)
-            file_names = zip_file.namelist()
-            root_dir = self._get_bundle_root_dir(file_names)
-            linfo_path = os.path.join(root_dir, 'locale', lang, 'activity.linfo')
-            if not linfo_path in file_names:
-                linfo_path = os.path.join(root_dir, 'locale', lang[:2], 'activity.linfo')
-            if linfo_path in zip_file.namelist():                
-                linfo_data = zip_file.read(linfo_path)
-                linfo_file = StringIO.StringIO(linfo_data)
-
-            zip_file.close()
-
-        return linfo_file
-
-    def is_valid(self):
-        return self._valid
-
-    def get_locale_path(self):
-        """Get the locale path inside the activity bundle."""
-        return os.path.join(self._path, 'locale')
-
-    def get_icons_path(self):
-        """Get the icons path inside the activity bundle."""
-        return os.path.join(self._path, 'icons')
-
-    def get_path(self):
-        """Get the activity bundle path."""
-        return self._path
-
-    def get_name(self):
-        """Get the activity user visible name."""
-        return self._name
-
-    def get_service_name(self):
-        """Get the activity service name"""
-        return self._service_name
-
-    def get_icon(self):
-        """Get the activity icon name"""
-        if os.path.isdir(self._path):
-            activity_path = os.path.join(self._path, 'activity')
-            return os.path.join(activity_path, self._icon + '.svg')
-        else:
-            zip_file = zipfile.ZipFile(self._path)
-            file_names = zip_file.namelist()
-            root_dir = self._get_bundle_root_dir(file_names)
-            icon_path = os.path.join(root_dir, 'activity', self._icon + '.svg')
-            if icon_path in file_names:
-                icon_data = zip_file.read(icon_path)
-                temp_file, temp_file_path = tempfile.mkstemp(suffix='.svg', prefix=self._icon)
-                os.write(temp_file, icon_data)
-                os.close(temp_file)
-                return temp_file_path
-            else:
-                return None
-
-    def get_activity_version(self):
-        """Get the activity version"""
-        return self._activity_version
-
-    def get_command(self):
-        """Get the command to execute to launch the activity factory"""
-        if self.bundle_exec:
-            command = os.path.join(self._path, self.bundle_exec)
-            command = command.replace('$SUGAR_BUNDLE_PATH', self._path)
-            command = os.path.expandvars(command)
-        else:
-            command = '%s --bundle-path="%s"' % (
-                  env.get_bin_path(_PYTHON_FACTORY), self._path)
-
-        return command
-
-    def get_class(self):
-        """Get the main Activity class"""
-        return self._class
-
-    def get_mime_types(self):
-        """Get the MIME types supported by the activity"""
-        return self._mime_types
-
-    def get_show_launcher(self):
-        """Get whether there should be a visible launcher for the activity"""
-        return self._show_launcher
-
-    def is_installed(self):
-        if self._valid and activity.get_registry().get_activity(self._service_name):
-            return True
-        else:
-            return False
-
-    def _get_bundle_root_dir(self, file_names):
-        """
-        We check here that all the files in the .xo are inside one only dir
-        (bundle_root_dir).
-        """
-        bundle_root_dir = None
-        for file_name in file_names:
-            if not bundle_root_dir:
-                bundle_root_dir = file_name.split('/')[0]
-                if not bundle_root_dir.endswith('.activity'):
-                    raise MalformedBundleException(
-                            'The activity directory name must end with .activity')
-            else:
-                if not file_name.startswith(bundle_root_dir):
-                    raise MalformedBundleException(
-                        'All files in the bundle must be inside the activity directory')
-
-        return bundle_root_dir
-
-    def install(self):
-        if self.is_installed():
-            raise AlreadyInstalledException
-
-        ext = os.path.splitext(self._path)[1]
-        if not os.path.isfile(self._path):
-            raise InvalidPathException
-
-        bundle_dir = env.get_user_activities_path()
-        if not os.path.isdir(bundle_dir):
-            os.mkdir(bundle_dir)
-
-        zip_file = zipfile.ZipFile(self._path)
-        file_names = zip_file.namelist()
-        bundle_root_dir = self._get_bundle_root_dir(file_names)
-        bundle_path = os.path.join(bundle_dir, bundle_root_dir)
-
-        if os.spawnlp(os.P_WAIT, 'unzip', 'unzip', self._path, '-d', bundle_dir):
-            raise ZipExtractException
-
-        self._init_with_path(bundle_path)
-
-        if not activity.get_registry().add_bundle(bundle_path):
-            raise RegistrationException
-
-    def deinstall(self):
-        if not self.is_installed():
-            raise NotInstalledException
-
-        ext = os.path.splitext(self._path)[1]
-        if not os.path.isfile(self._path) or ext != '.activity':
-            raise InvalidPathException
-
-        for root, dirs, files in os.walk(self._path, topdown=False):
-            for name in files:
-                os.remove(os.path.join(root, name))
-            for name in dirs:
-                os.rmdir(os.path.join(root, name))
-        os.rmdir(self._path)
-
-        self._init_with_path(None)
-
-        # TODO: notify shell
-

sugar/activity/bundlebuilder.py

@@ -24,7 +24,7 @@ import re
 import gettext
 
 from sugar import env
-from sugar.activity.bundle import Bundle
+from sugar.bundle.activitybundle import ActivityBundle
 
 class _SvnFileList(list):
     def __init__(self):
@@ -98,7 +98,7 @@ def _get_install_dir(prefix):
     return os.path.join(prefix, 'share/activities')
 
 def _get_package_name(bundle_name):
-    bundle = Bundle(_get_source_path())
+    bundle = ActivityBundle(_get_source_path())
     zipname = '%s-%d.xo' % (bundle_name, bundle.get_activity_version())
     return zipname
 
@@ -108,7 +108,7 @@ def _delete_backups(arg, dirname, names):
             os.remove(os.path.join(dirname, name))
 
 def _get_service_name():
-    bundle = Bundle(_get_source_path())
+    bundle = ActivityBundle(_get_source_path())
     return bundle.get_service_name()
 
 def cmd_help():

sugar/bundle/Makefile.am

@@ -2,4 +2,5 @@ sugardir = $(pythondir)/sugar/bundle
 sugar_PYTHON =				\
 	__init__.py			\
 	bundle.py			\
+	activitybundle.py		\
 	contentbundle.py

sugar/bundle/activitybundle.py

@@ -0,0 +1,248 @@
+# Copyright (C) 2007, 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.
+
+"""Sugar activity bundles"""
+
+from ConfigParser import ConfigParser
+import locale
+import os
+import tempfile
+
+from sugar.bundle.bundle import Bundle, MalformedBundleException
+from sugar import activity
+from sugar import env
+
+_PYTHON_FACTORY='sugar-activity-factory'
+
+class ActivityBundle(Bundle):
+    """A Sugar activity bundle
+    
+    See http://wiki.laptop.org/go/Activity_bundles for details
+    """
+
+    MIME_TYPE = 'application/vnd.olpc-sugar'
+    DEPRECATED_MIME_TYPE = 'application/vnd.olpc-x-sugar'
+
+    _zipped_extension = '.xo'
+    _unzipped_extension = '.activity'
+    _infodir = 'activity'
+
+    def __init__(self, path):
+        Bundle.__init__(self, path)
+        self.activity_class = None
+        self.bundle_exec = None
+        
+        self._name = None
+        self._icon = None
+        self._service_name = None
+        self._mime_types = None
+        self._show_launcher = True
+        self._activity_version = 0
+
+        info_file = self._get_file('activity/activity.info')
+        if info_file is None:
+            raise MalformedBundleException('No activity.info file')
+        self._parse_info(info_file)
+
+        linfo_file = self._get_linfo_file()
+        if linfo_file:
+            self._parse_linfo(linfo_file)
+
+    def _parse_info(self, info_file):
+        cp = ConfigParser()
+        cp.readfp(info_file)
+
+        section = 'Activity'
+
+        if cp.has_option(section, 'service_name'):
+            self._service_name = cp.get(section, 'service_name')
+        else:
+            raise MalformedBundleException(
+                'Activity bundle %s does not specify a service name' %
+                self._path)
+
+        if cp.has_option(section, 'name'):
+            self._name = cp.get(section, 'name')
+        else:
+            raise MalformedBundleException(
+                'Activity bundle %s does not specify a name' % self._path)
+
+        if cp.has_option(section, 'class'):
+            self.activity_class = cp.get(section, 'class')
+        elif cp.has_option(section, 'exec'):
+            self.bundle_exec = cp.get(section, 'exec')
+        else:
+            raise MalformedBundleException(
+                'Activity bundle %s must specify either class or exec' %
+                self._path)
+
+        if cp.has_option(section, 'mime_types'):
+            mime_list = cp.get(section, 'mime_types')
+            self._mime_types = mime_list.strip(';').split(';')
+
+        if cp.has_option(section, 'show_launcher'):
+            if cp.get(section, 'show_launcher') == 'no':
+                self._show_launcher = False
+
+        if cp.has_option(section, 'icon'):
+            self._icon = cp.get(section, 'icon')
+
+        if cp.has_option(section, 'activity_version'):
+            version = cp.get(section, 'activity_version')
+            try:
+                self._activity_version = int(version)
+            except ValueError:
+                raise MalformedBundleException(
+                    'Activity bundle %s has invalid version number %s' %
+                    (self._path, version))
+
+    def _get_linfo_file(self):
+        lang = locale.getdefaultlocale()[0]
+        if not lang:
+            return None
+
+        linfo_path = os.path.join('locale', lang, 'activity.linfo')
+        linfo_file = self._get_file(linfo_path)
+        if linfo_file is not None:
+            return linfo_file
+
+        linfo_path = os.path.join('locale', lang[:2], 'activity.linfo')
+        linfo_file = self._get_file(linfo_path)
+        if linfo_file is not None:
+            return linfo_file
+
+        return None
+
+    def _parse_linfo(self, linfo_file):
+        cp = ConfigParser()
+        cp.readfp(linfo_file)
+
+        section = 'Activity'
+
+        if cp.has_option(section, 'name'):
+            self._name = cp.get(section, 'name')
+
+    def get_locale_path(self):
+        """Get the locale path inside the (installed) activity bundle."""
+        if not self._unpacked:
+            raise NotInstalledException
+        return os.path.join(self._path, 'locale')
+
+    def get_icons_path(self):
+        """Get the icons path inside the (installed) activity bundle."""
+        if not self._unpacked:
+            raise NotInstalledException
+        return os.path.join(self._path, 'icons')
+
+    def get_path(self):
+        """Get the activity bundle path."""
+        return self._path
+
+    def get_name(self):
+        """Get the activity user visible name."""
+        return self._name
+
+    def get_service_name(self):
+        """Get the activity service name"""
+        return self._service_name
+
+    # FIXME: this should return the icon data, not a filename, so that
+    # we don't need to create a temp file in the zip case
+    def get_icon(self):
+        """Get the activity icon name"""
+        icon_path = os.path.join('activity', self._icon + '.svg')
+        if self._unpacked:
+            return os.path.join(self._path, icon_path)
+        else:
+            icon_data = self._get_file(icon_path).read()
+            temp_file, temp_file_path = tempfile.mkstemp(self._icon)
+            os.write(temp_file, icon_data)
+            os.close(temp_file)
+            return temp_file_path
+
+    def get_activity_version(self):
+        """Get the activity version"""
+        return self._activity_version
+
+    def get_command(self):
+        """Get the command to execute to launch the activity factory"""
+        if self.bundle_exec:
+            command = os.path.join(self._path, self.bundle_exec)
+            command = command.replace('$SUGAR_BUNDLE_PATH', self._path)
+            command = os.path.expandvars(command)
+        else:
+            command = '%s --bundle-path="%s"' % (
+                  env.get_bin_path(_PYTHON_FACTORY), self._path)
+
+        return command
+
+
+    def get_mime_types(self):
+        """Get the MIME types supported by the activity"""
+        return self._mime_types
+
+    def get_show_launcher(self):
+        """Get whether there should be a visible launcher for the activity"""
+        return self._show_launcher
+
+    def is_installed(self):
+        if activity.get_registry().get_activity(self._service_name):
+            return True
+        else:
+            return False
+
+    def install(self):
+        if self.is_installed():
+            raise AlreadyInstalledException
+
+        install_dir = env.get_user_activities_path()
+        self._unzip(install_dir)
+
+        install_path = os.path.join(install_dir, self._zip_root_dir)
+        if not activity.get_registry().add_bundle(install_path):
+            raise RegistrationException
+
+        xdg_data_home = os.getenv('XDG_DATA_HOME', os.path.expanduser('~/.local/share'))
+
+        mime_path = os.path.join(install_path, 'activity', 'mimetypes.xml')
+        if os.path.isfile(mime_path):
+            mime_dir = os.path.join(xdg_data_home, 'mime')
+            mime_pkg_dir = os.path.join(mime_dir, 'packages')
+            if not os.path.isdir(mime_pkg_dir):
+                os.makedirs(mime_pkg_dir)
+            installed_mime_path = os.path.join(mime_pkg_dir, '%s.xml' % self._service_name)
+            os.symlink(mime_path, installed_mime_path)
+            os.spawnlp(os.P_WAIT, 'update-mime-database',
+                       'update-mime-database', mime_dir)
+
+        icons_dir = os.path.join(install_path, 'activity', 'mime-icons')
+        if os.path.isdir(icons_dir):
+            installed_icons_dir = os.path.join(xdg_data_home, 'icons/sugar/scalable/mimetypes')
+            if not os.path.isdir(installed_icons_dir):
+                os.makedirs(installed_icons_dir)
+            for file in os.listdir(icons_dir):
+                if file.endswith('.svg') or file.endswith('.icon'):
+                    os.symlink(os.path.join(icons_dir, file),
+                               os.path.join(installed_icons_dir, file))
+
+    def uninstall(self):
+        if not self.is_installed():
+            raise NotInstalledException
+
+        self._uninstall()
+        # FIXME: notify shell
+

sugar/datastore/datastore.py

@@ -24,9 +24,10 @@ import gobject
 
 from sugar.datastore import dbus_helpers
 from sugar import activity
-from sugar.activity.bundle import Bundle
 from sugar.activity.activityhandle import ActivityHandle
 from sugar.bundle.contentbundle import ContentBundle
+from sugar.bundle.activitybundle import ActivityBundle
+from sugar.bundle.contentbundle import ContentBundle
 from sugar.objects import mime
 
 class DSMetadata(gobject.GObject):
@@ -121,22 +122,24 @@ class DSObject(object):
 
         return activities
 
+    def is_activity_bundle(self):
+        return self.metadata['mime_type'] in \
+               [ActivityBundle.MIME_TYPE, ActivityBundle.DEPRECATED_MIME_TYPE]
+
     def is_content_bundle(self):
         return self.metadata['mime_type'] == ContentBundle.MIME_TYPE
 
-    # FIXME: should become is_activity_bundle()
     def is_bundle(self):
-        return self.metadata['mime_type'] in ['application/vnd.olpc-x-sugar',
+        return self.is_activity_bundle() or self.is_content_bundle()
-                                              'application/vnd.olpc-sugar']
 
     def resume(self, service_name=None):
         from sugar.activity import activityfactory
 
-        if self.is_bundle():
+        if self.is_activity_bundle():
             if service_name is not None:
                 raise ValueError('Object is a bundle, cannot be resumed as an activity.')
 
-            bundle = Bundle(self.file_path)
+            bundle = ActivityBundle(self.file_path)
             if not bundle.is_installed():
                 bundle.install()
 

sugar/graphics/objectchooser.py

@@ -22,7 +22,7 @@ from gettext import gettext as _
 import gtk
 import hippo
 
-from sugar.activity.bundle import Bundle
+from sugar.bundle.activitybundle import ActivityBundle
 from sugar.graphics import style
 from sugar.graphics.icon import CanvasIcon
 from sugar.graphics.xocolor import XoColor
@@ -136,8 +136,8 @@ class CollapsedEntry(CanvasRoundBox):
         if self._icon_name:
             return self._icon_name
 
-        if self.jobject.is_bundle():
+        if self.jobject.is_activity_bundle():
-            bundle = Bundle(self.jobject.file_path)
+            bundle = ActivityBundle(self.jobject.file_path)
             self._icon_name = bundle.get_icon()
 
         if self.jobject.metadata['activity']: