def get_icon_name(metadata):
    file_name = None

    bundle_id = metadata.get("activity", "")
    if not bundle_id:
        bundle_id = metadata.get("bundle_id", "")

    if bundle_id:
        activity_info = bundleregistry.get_registry().get_bundle(bundle_id)
        if activity_info:
            file_name = activity_info.get_icon()

    if file_name is None and is_activity_bundle(metadata):
        file_path = model.get_file(metadata["uid"])
        if file_path is not None and os.path.exists(file_path):
            try:
                bundle = ActivityBundle(file_path)
                file_name = bundle.get_icon()
            except Exception:
                logging.exception("Could not read bundle")

    if file_name is None:
        file_name = _get_icon_for_mime(metadata.get("mime_type", ""))

    if file_name is None:
        file_name = get_icon_file_name("application-octet-stream")

    return file_name

    def _update_invite_menu(self, activity):
        buddy_activity = self._buddy.props.current_activity
        if buddy_activity is not None:
            buddy_activity_id = buddy_activity.activity_id
        else:
            buddy_activity_id = None

        self._invite_menu.hide()
        if activity is None or \
           activity.is_journal() or \
           activity.get_activity_id() == buddy_activity_id:
            return

        bundle_activity = ActivityBundle(activity.get_bundle_path())
        if bundle_activity.get_max_participants() > 1:
            title = activity.get_title()
            self._invite_menu.set_label(_('Invite to %s') % title)

            icon = Icon(file=activity.get_icon_path(),
                        pixel_size=style.SMALL_ICON_SIZE)
            icon.props.xo_color = activity.get_icon_color()
            self._invite_menu.set_image(icon)
            icon.show()

            self._invite_menu.show()

def get_icon_name(metadata):
    file_name = None

    bundle_id = metadata.get('activity', '')
    if not bundle_id:
        bundle_id = metadata.get('bundle_id', '')

    if bundle_id:
        activity_info = bundleregistry.get_registry().get_bundle(bundle_id)
        if activity_info:
            file_name = activity_info.get_icon()

    if file_name is None and is_activity_bundle(metadata):
        file_path = model.get_file(metadata['uid'])
        if file_path is not None and os.path.exists(file_path):
            try:
                bundle = ActivityBundle(file_path)
                file_name = bundle.get_icon()
            except Exception:
                logging.exception('Could not read bundle')

    if file_name is None:
        file_name = _get_icon_for_mime(metadata.get('mime_type', ''))

    if file_name is None:
        file_name = get_icon_file_name('application-octet-stream')

    return file_name

def _create_activity_icon(metadata):
    if metadata.get('icon-color', ''):
        color = XoColor(metadata['icon-color'])
    else:
        color = XoColor()

    from sugar3.activity.activity import get_bundle_path
    bundle = ActivityBundle(get_bundle_path())
    icon = Icon(file=bundle.get_icon(), xo_color=color)

    return icon

    def __init__(self, title, message, button_callback):
        Gtk.EventBox.__init__(self)

        self.modify_bg(Gtk.StateType.NORMAL, style.COLOR_WHITE.get_gdk_color())

        alignment = Gtk.Alignment.new(0.5, 0.5, 0.1, 0.1)
        self.add(alignment)
        alignment.show()

        box = Gtk.VBox()
        alignment.add(box)
        box.show()

        # Get the icon of this activity through the bundle path.
        bundle_path = activity.get_bundle_path()
        activity_bundle = ActivityBundle(bundle_path)
        icon = Icon(
            pixel_size=style.LARGE_ICON_SIZE,
            file=activity_bundle.get_icon(),
            stroke_color=style.COLOR_BUTTON_GREY.get_svg(),
            fill_color=style.COLOR_TRANSPARENT.get_svg(),
        )

        box.pack_start(icon, expand=True, fill=False, padding=0)
        icon.show()

        color = style.COLOR_BUTTON_GREY.get_html()

        label = Gtk.Label()
        label.set_markup('<span weight="bold" color="%s">%s</span>' % (color, GLib.markup_escape_text(title)))
        box.pack_start(label, expand=True, fill=False, padding=0)
        label.show()

        label = Gtk.Label()
        label.set_markup('<span color="%s">%s</span>' % (color, GLib.markup_escape_text(message)))
        box.pack_start(label, expand=True, fill=False, padding=0)
        label.show()

        button_box = Gtk.HButtonBox()
        button_box.set_layout(Gtk.ButtonBoxStyle.CENTER)
        box.pack_start(button_box, False, True, 0)
        button_box.show()

        button = Gtk.Button(label=_("Try again"))
        button.connect("clicked", button_callback)
        button.props.image = Icon(
            icon_name="entry-refresh",
            pixel_size=style.SMALL_ICON_SIZE,
            stroke_color=style.COLOR_WHITE.get_svg(),
            fill_color=style.COLOR_TRANSPARENT.get_svg(),
        )
        button_box.pack_start(button, expand=True, fill=False, padding=0)
        button.show()

def _create_activity_icon(metadata):
    if metadata is not None and metadata.get('icon-color'):
        color = XoColor(metadata['icon-color'])
    else:
        client = GConf.Client.get_default()
        color = XoColor(client.get_string('/desktop/sugar/user/color'))

    from sugar3.activity.activity import get_bundle_path
    bundle = ActivityBundle(get_bundle_path())
    icon = Icon(file=bundle.get_icon(), xo_color=color)

    return icon

        def process_dir(activity_path):
            for dir_name in sorted(os.listdir(activity_path)):
                bundles_installed = []
                if dir_name.endswith('.activity'):
                    bundle_dir = os.path.join(activity_path, dir_name)
                    bundle = ActivityBundle(bundle_dir)
                    bundles_installed.append(bundle)

                    item = MenuItem(file_name=bundle.get_icon(),
                                    xo_color=xocolor.XoColor())
                    item.set_label(bundle.get_name())
                    item.set_reserve_indicator(True)
                    item.set_submenu(self.make_submenu(bundle))
                    self.menu.append(item)

    def notify_user(self, summary, body):
        """
        Display a notification with the given summary and body.
        The notification will go under the activities icon in the frame.
        """
        bundle = ActivityBundle(get_bundle_path())
        icon = bundle.get_icon()

        bus = dbus.SessionBus()
        notify_obj = bus.get_object(N_BUS_NAME, N_OBJ_PATH)
        notifications = dbus.Interface(notify_obj, N_IFACE_NAME)

        notifications.Notify(self.get_id(), 0, '', summary, body, [],
                             {'x-sugar-icon-file-name': icon}, -1)

def get_help_url_and_title(activity):
    """
    Returns the help document name and the title to display,
    or None if not content is available.
    """
    bundle_path = activity.get_bundle_path()
    if bundle_path is None:
        shell_model = shell.get_model()
        zoom_level = shell_model.zoom_level
        if zoom_level == shell_model.ZOOM_MESH:
            title = _("Mesh")
            link_id = "mesh_view"
        elif zoom_level == shell_model.ZOOM_GROUP:
            title = _("Group")
            link_id = "group_view"
        elif zoom_level == shell_model.ZOOM_HOME:
            title = _("Home")
            link_id = "home_view"
        else:
            title = _("Journal")
            link_id = "org.laptop.JournalActivity"
    else:
        # get activity name and window id
        activity_bundle = ActivityBundle(bundle_path)
        title = activity_bundle.get_name()
        link_id = activity_bundle.get_bundle_id()

    # get the help file name for the activity
    activity_path = _get_help_activity_path()
    if activity_path is None:
        return None
    help_content_link = os.path.join(activity_path, "helplink.json")
    if not os.path.exists(help_content_link):
        _logger.error("Help activity not installed or json file not found")
        return None

    links = None
    try:
        with open(help_content_link) as json_file:
            links = json.load(json_file)
    except IOError:
        _logger.error("helplink.json malformed, or can't be read")

    if links:
        if link_id in links.keys():
            return (links[link_id], title)

    return None

    def __init__(self, handle):
        "The entry point to the Activity"
        activity.Activity.__init__(self, handle, False)
        self.max_participants = 1

        self._sequence = 0
        self.selected_book = None
        self.queryresults = None
        self._getter = None
        self.show_images = True
        self.languages = {}
        self._lang_code_handler = languagenames.LanguageNames()
        self.catalogs_configuration = {}
        self.catalog_history = []

        if os.path.exists('/etc/get-books.cfg'):
            self._read_configuration('/etc/get-books.cfg')
        else:
            self._read_configuration()

        toolbar_box = ToolbarBox()
        activity_button = ToolButton()
        color = profile.get_color()
        bundle = ActivityBundle(activity.get_bundle_path())
        icon = Icon(file=bundle.get_icon(), xo_color=color)
        activity_button.set_icon_widget(icon)
        activity_button.show()

        toolbar_box.toolbar.insert(activity_button, 0)
        self._add_search_controls(toolbar_box.toolbar)

        separator = Gtk.SeparatorToolItem()
        separator.props.draw = False
        separator.set_expand(True)
        toolbar_box.toolbar.insert(separator, -1)

        toolbar_box.toolbar.insert(StopButton(self), -1)

        self.set_toolbar_box(toolbar_box)
        toolbar_box.show_all()
        self._books_toolbar = toolbar_box.toolbar

        self._create_controls()

        self.using_powerd = os.access(POWERD_INHIBIT_DIR, os.W_OK)

        self.__book_downloader = self.__image_downloader = None

def resume(metadata, bundle_id=None):
    registry = bundleregistry.get_registry()

    if is_activity_bundle(metadata) and bundle_id is None:

        logging.debug("Creating activity bundle")

        file_path = model.get_file(metadata["uid"])
        bundle = ActivityBundle(file_path)
        if not registry.is_installed(bundle):
            logging.debug("Installing activity bundle")
            try:
                registry.install(bundle)
            except AlreadyInstalledException:
                _downgrade_option_alert(bundle)
                return
        else:
            logging.debug("Upgrading activity bundle")
            registry.upgrade(bundle)

        _launch_bundle(bundle)

    elif is_content_bundle(metadata) and bundle_id is None:

        logging.debug("Creating content bundle")

        file_path = model.get_file(metadata["uid"])
        bundle = ContentBundle(file_path)
        if not bundle.is_installed():
            logging.debug("Installing content bundle")
            bundle.install()

        activities = _get_activities_for_mime("text/html")
        if len(activities) == 0:
            logging.warning("No activity can open HTML content bundles")
            return

        uri = bundle.get_start_uri()
        logging.debug("activityfactory.creating with uri %s", uri)

        activity_bundle = registry.get_bundle(activities[0].get_bundle_id())
        launch(activity_bundle, uri=uri)
    else:
        activity_id = metadata.get("activity_id", "")

        if bundle_id is None:
            activities = get_activities(metadata)
            if not activities:
                logging.warning("No activity can open this object, %s.", metadata.get("mime_type", None))
                return
            bundle_id = activities[0].get_bundle_id()

        bundle = registry.get_bundle(bundle_id)

        if metadata.get("mountpoint", "/") == "/":
            object_id = metadata["uid"]
        else:
            object_id = model.copy(metadata, "/")

        launch(bundle, activity_id=activity_id, object_id=object_id, color=get_icon_color(metadata))

def _main():
    """Launch this activity from the command line."""
    ab = ActivityBundle(os.path.dirname(__file__) or '.')
    ai = ActivityInfo(name=ab.get_name(),
                      icon=None,
                      bundle_id=ab.get_bundle_id(),
                      version=ab.get_activity_version(),
                      path=ab.get_path(),
                      show_launcher=ab.get_show_launcher(),
                      command=ab.get_command(),
                      favorite=True,
                      installation_time=ab.get_installation_time(),
                      position_x=0, position_y=0)
    env = activityfactory.get_environment(ai)
    cmd_args = activityfactory.get_command(ai)
    os.execvpe(cmd_args[0], cmd_args, env)

    def _add_bundle(self, bundle_path, install_mime_type=False):
        logging.debug('STARTUP: Adding bundle %r', bundle_path)
        try:
            bundle = ActivityBundle(bundle_path)
            if install_mime_type:
                bundle.install_mime_type(bundle_path)
        except MalformedBundleException:
            logging.exception('Error loading bundle %r', bundle_path)
            return None

        bundle_id = bundle.get_bundle_id()
        installed = self.get_bundle(bundle_id)

        if installed is not None:
            if NormalizedVersion(installed.get_activity_version()) >= \
                    NormalizedVersion(bundle.get_activity_version()):
                logging.debug('Skip old version for %s', bundle_id)
                return None
            else:
                logging.debug('Upgrade %s', bundle_id)
                self.remove_bundle(installed.get_path())

        self._bundles.append(bundle)
        return bundle

    def __init__(self, title, bundle_path, document_path, sugar_toolkit_path):
        Gtk.Toolbar.__init__(self)

        document_button = None
        self.bundle_path = bundle_path
        self.sugar_toolkit_path = sugar_toolkit_path

        self._add_separator()

        activity_bundle = ActivityBundle(bundle_path)
        file_name = activity_bundle.get_icon()

        if document_path is not None and os.path.exists(document_path):
            document_button = DocumentButton(file_name, document_path, title)
            document_button.connect('toggled', self.__button_toggled_cb,
                                    document_path)
            self.insert(document_button, -1)
            document_button.show()
            self._add_separator()

        if bundle_path is not None and os.path.exists(bundle_path):
            activity_button = DocumentButton(file_name, bundle_path, title,
                                             bundle=True)
            icon = Icon(file=file_name,
                        icon_size=Gtk.IconSize.LARGE_TOOLBAR,
                        fill_color=style.COLOR_TRANSPARENT.get_svg(),
                        stroke_color=style.COLOR_WHITE.get_svg())
            activity_button.set_icon_widget(icon)
            icon.show()
            if document_button is not None:
                activity_button.props.group = document_button
            activity_button.props.tooltip = _('Activity Bundle Source')
            activity_button.connect('toggled', self.__button_toggled_cb,
                                    bundle_path)
            self.insert(activity_button, -1)
            activity_button.show()
            self._add_separator()

        if sugar_toolkit_path is not None:
            sugar_button = RadioToolButton()
            icon = Icon(icon_name='computer-xo',
                        icon_size=Gtk.IconSize.LARGE_TOOLBAR,
                        fill_color=style.COLOR_TRANSPARENT.get_svg(),
                        stroke_color=style.COLOR_WHITE.get_svg())
            sugar_button.set_icon_widget(icon)
            icon.show()
            if document_button is not None:
                sugar_button.props.group = document_button
            else:
                sugar_button.props.group = activity_button
            sugar_button.props.tooltip = _('Sugar Toolkit Source')
            sugar_button.connect('toggled', self.__button_toggled_cb,
                                 sugar_toolkit_path)
            self.insert(sugar_button, -1)
            sugar_button.show()
            self._add_separator()

        self.activity_title_text = _('View source: %s') % title
        self.sugar_toolkit_title_text = _('View source: %r') % 'Sugar Toolkit'
        self.label = Gtk.Label()
        self.label.set_markup('<b>%s</b>' % self.activity_title_text)
        self.label.set_alignment(0, 0.5)
        self._add_widget(self.label)

        self._add_separator(True)

        stop = ToolButton(icon_name='dialog-cancel')
        stop.set_tooltip(_('Close'))
        stop.connect('clicked', self.__stop_clicked_cb)
        self.insert(stop, -1)
        stop.show()

def resume(metadata, bundle_id=None):
    registry = bundleregistry.get_registry()

    if is_activity_bundle(metadata) and bundle_id is None:

        logging.debug('Creating activity bundle')

        file_path = model.get_file(metadata['uid'])
        bundle = ActivityBundle(file_path)
        if not registry.is_installed(bundle):
            logging.debug('Installing activity bundle')
            try:
                registry.install(bundle)
            except AlreadyInstalledException:
                _downgrade_option_alert(bundle)
                return
        else:
            logging.debug('Upgrading activity bundle')
            registry.upgrade(bundle)

        _launch_bundle(bundle)

    elif is_content_bundle(metadata) and bundle_id is None:

        logging.debug('Creating content bundle')

        file_path = model.get_file(metadata['uid'])
        bundle = ContentBundle(file_path)
        if not bundle.is_installed():
            logging.debug('Installing content bundle')
            bundle.install()

        activities = _get_activities_for_mime('text/html')
        if len(activities) == 0:
            logging.warning('No activity can open HTML content bundles')
            return

        uri = bundle.get_start_uri()
        logging.debug('activityfactory.creating with uri %s', uri)

        activity_bundle = registry.get_bundle(activities[0].get_bundle_id())
        launch(activity_bundle, uri=uri)
    else:
        activity_id = metadata.get('activity_id', '')

        if bundle_id is None:
            activities = get_activities(metadata)
            if not activities:
                logging.warning('No activity can open this object, %s.',
                                metadata.get('mime_type', None))
                return
            bundle_id = activities[0].get_bundle_id()

        bundle = registry.get_bundle(bundle_id)

        if metadata.get('mountpoint', '/') == '/':
            object_id = metadata['uid']
        else:
            object_id = model.copy(metadata, '/')

        launch(bundle, activity_id=activity_id, object_id=object_id,
               color=get_icon_color(metadata))

def _is_web_activity(bundle_path):
    activity_bundle = ActivityBundle(bundle_path)
    return activity_bundle.get_command() == 'sugar-activity-web'

def main():
    usage = 'usage: %prog [options] [activity dir] [python class]'
    epilog = 'If you are running from a directory containing an Activity, ' \
             'the argument may be omitted.  Otherwise please provide either '\
             'a directory containing a Sugar Activity [activity dir], a '\
             '[python_class], or both.'

    parser = OptionParser(usage=usage, epilog=epilog)
    parser.add_option('-b', '--bundle-id', dest='bundle_id',
                      help='identifier of the activity bundle')
    parser.add_option('-a', '--activity-id', dest='activity_id',
                      help='identifier of the activity instance')
    parser.add_option('-o', '--object-id', dest='object_id',
                      help='identifier of the associated datastore object')
    parser.add_option('-u', '--uri', dest='uri',
                      help='URI to load')
    parser.add_option('-s', '--single-process', dest='single_process',
                      action='store_true',
                      help='start all the instances in the same process')
    parser.add_option('-i', '--invited', dest='invited',
                      action='store_true', default=False,
                      help='the activity is being launched for handling an '
                           'invite from the network')
    (options, args) = parser.parse_args()

    logger.start()

    activity_class = None
    if len(args) == 2:
        activity_class = args[1]
        os.chdir(args[0])
    elif len(args) == 1:
        if os.path.isdir(args[0]):
            os.chdir(args[0])
        else:
            activity_class = args[0]

    bundle_path = os.path.abspath(os.curdir)
    sys.path.insert(0, bundle_path)

    try:
        bundle = ActivityBundle(bundle_path)
    except MalformedBundleException:
        parser.print_help()
        exit(0)

    if not activity_class:
        command = bundle.get_command()
        if command.startswith('sugar-activity'):
            if not command.startswith('sugar-activity3'):
                logging.warning("Activity written for Python 2, consider porting to Python 3.")
            activity_class = command.split(" ")[1]

    # when an activity is started outside sugar,
    # activityfactory.get_environment has not executed in parent
    # process, so parts of get_environment must happen here.
    if 'SUGAR_BUNDLE_PATH' not in os.environ:
        profile_id = os.environ.get('SUGAR_PROFILE', 'default')
        home_dir = os.environ.get('SUGAR_HOME', os.path.expanduser('~/.sugar'))
        base = os.path.join(home_dir, profile_id)
        activity_root = os.path.join(base, bundle.get_bundle_id())

        instance_dir = os.path.join(activity_root, 'instance')
        _makedirs(instance_dir)

        data_dir = os.path.join(activity_root, 'data')
        _makedirs(data_dir)

        tmp_dir = os.path.join(activity_root, 'tmp')
        _makedirs(tmp_dir)

        os.environ['SUGAR_BUNDLE_PATH'] = bundle_path
        os.environ['SUGAR_BUNDLE_ID'] = bundle.get_bundle_id()
        os.environ['SUGAR_ACTIVITY_ROOT'] = activity_root

    os.environ['SUGAR_BUNDLE_NAME'] = bundle.get_name()
    os.environ['SUGAR_BUNDLE_VERSION'] = str(bundle.get_activity_version())

    # must be done early, some activities set translations globally, SL #3654
    activity_locale_path = os.environ.get("SUGAR_LOCALEDIR",
                                          config.locale_path)

    gettext.bindtextdomain(bundle.get_bundle_id(), activity_locale_path)
    gettext.bindtextdomain('sugar-toolkit-gtk3', config.locale_path)
    gettext.textdomain(bundle.get_bundle_id())

    splitted_module = activity_class.rsplit('.', 1)
    module_name = splitted_module[0]
    class_name = splitted_module[1]

    module = __import__(module_name)
    for comp in module_name.split('.')[1:]:
        module = getattr(module, comp)

    activity_constructor = getattr(module, class_name)

    if not options.activity_id:
        # Generate random hash
        data = '%s%s' % (time.time(), random.randint(10000, 100000))
        random_hash = hashlib.sha1(data.encode()).hexdigest()
#.........这里部分代码省略.........