import dbus import dbus.service from dbus import glib from dbus.mainloop.glib import DBusGMainLoop from gi.repository import GObject from gi.repository import GLib from gi.repository import Gio SERVICE_NAME = "com.canonical.test" INTERFACE_NAME = "com.canonical.test.menuscript" OBJECT_PATH = "/com/canonical/test/menuscript" MENU_SERVICE_NAME= SERVICE_NAME + ".menu" MENU_OBJECT_PATH = OBJECT_PATH + "/menu" bus = None class Script(dbus.service.Object): def __init__(self, aList, session, object_path): dbus.service.Object.__init__(self, session, object_path) self._list = aList self._session = session def run(self): self._loop = GObject.MainLoop() self._loop.run() @dbus.service.method(dbus_interface=INTERFACE_NAME, in_signature='', out_signature='', sender_keyword='sender') def publishMenu(self, sender=None): self._list.start() @dbus.service.method(dbus_interface=INTERFACE_NAME, in_signature='', out_signature='', sender_keyword='sender') def unpublishMenu(self, sender=None): self._list.stop() @dbus.service.method(dbus_interface=INTERFACE_NAME, in_signature='', out_signature='', sender_keyword='sender') def quit(self, sender=None): self.unpublishMenu(); self._loop.quit() @dbus.service.method(dbus_interface=INTERFACE_NAME, in_signature='i', out_signature='', sender_keyword='sender') def walk(self, steps, sender=None): if steps == -1 or steps > self._list.size(): steps = self._list.size() while(steps > 0): self._list.walk() steps -= 1 @dbus.service.method(dbus_interface=INTERFACE_NAME, in_signature='', out_signature='s') def popActivatedAction(self): return self._list._activatedActions.pop(0) @staticmethod def create(aList): global bus GObject.threads_init() glib.threads_init() dbus_loop = DBusGMainLoop() bus = dbus.SessionBus(mainloop=dbus_loop) bus_name = dbus.service.BusName(SERVICE_NAME, bus=bus) return Script(aList, bus_name, OBJECT_PATH) class Action(object): def __init__(self, aList, action, **kwargs): self._list = aList self._action = action self._kargs = kwargs def setProperties(self, menu, props): if props: for key in props: menu.set_attribute_value(key, props[key]) def appendItem(self): parentId = self._kargs['parentId'] if parentId and len(parentId): parent = self._list.getMenu(parentId)[0] else: parent = self._list._root if self._kargs['link'] == None: item = Gio.MenuItem.new(self._kargs['label'], self._kargs['actionName']) self.setProperties(item, self._kargs['properties']) parent.append_item(item) # Action act = Gio.SimpleAction.new(self._kargs['actionName'], None) act.connect('activate', self._list._onActionActivated) self._list._rootAction.insert(act) elif self._kargs['link'] == 'section': section = Gio.Menu() parent.append_section(self._kargs['label'], section) elif self._kargs['link'] == 'submenu': submenu = Gio.Menu() parent.append_submenu(self._kargs['label'], submenu) def removeItem(self): menuId = self._kargs['menuId'] (menu, mId) = self._list.getMenu(menuId) if mId != -1: menu.remove(mId) if self._kargs['actionName']: # Remove action self._list._rootAction.remove(self._kargs['actionName']) else: print("Remove menu item") def run(self): if self._action == 'append': self.appendItem() elif self._action == 'remove': self.removeItem() class ActionList(object): def __init__(self, objectPath): self._actions = [] self._actions_bk = [] self._objectPath = objectPath self._bus = None self._exportMenuID = None self._exportActionID = None self._ownNameID = None self._root = None self._rootAction = None self._activatedActions = [] def appendItem(self, label, actionName, link=None, parentId=None, properties=None): self._actions.append(Action(self, 'append', parentId=parentId, label=label, actionName=actionName, link=link, properties=properties)) def removeItem(self, menuId, actionName=None): self._actions.append(Action(self, 'remove', menuId=menuId, actionName=actionName)) def _save(self): self._actions_bk = [] self._actions_bk.extend(self._actions) def _restore(self): if len(self._actions_bk): self._actions = [] self._actions.extend(self._actions_bk) def _findMenu(self, root, ids): if len(ids) == 0: return (root, -1) currentId = int(ids[0]) link = root.get_item_link(currentId, 'section') if link == None: link = root.get_item_link(currentId, 'submenu') if link: return self._findMenu(link, ids[1:]) else: return (root, currentId) def getMenu(self, menuId): return self._findMenu(self._root, str(menuId).split('.')); def walk(self): item = self._actions.pop(0) item.run() def size(self): return len(self._actions) def _exportService(self, connection, name): self._root = Gio.Menu() self._rootAction = Gio.SimpleActionGroup() self._bus = connection self._exportMenuID = connection.export_menu_model(MENU_OBJECT_PATH, self._root) self._exportActionID = connection.export_action_group(MENU_OBJECT_PATH, self._rootAction) def start(self): self._save() self._ownNameID = Gio.bus_own_name(2, MENU_SERVICE_NAME, 0, self._exportService, None, None) def stop(self): if self._exportMenuID: self._bus.unexport_menu_model(self._exportMenuID) self._exportMenuID = None if self._exportActionID: self._bus.unexport_action_group(self._exportActionID) self._exportActionID = None if self._ownNameID: Gio.bus_unown_name(self._ownNameID) self._ownNameID = None self._root = None self._rootAction = None self._restore() def _onActionActivated(self, action, parameter): self._activatedActions.append(action.get_name())