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// Copyright 2013 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_UI_VIEWS_FRAME_DBUS_APPMENU_REGISTRAR_H_
#define CHROME_BROWSER_UI_VIEWS_FRAME_DBUS_APPMENU_REGISTRAR_H_
#include <map>
#include <string>
#include "base/memory/raw_ptr.h"
#include "base/memory/scoped_refptr.h"
#include "base/memory/weak_ptr.h"
#include "base/no_destructor.h"
namespace dbus {
class Bus;
class ObjectProxy;
} // namespace dbus
class DbusAppmenu;
// Advertises our menu bars to com.canonical.AppMenu.Registrar.
//
// DbusAppmenuRegistrar is responsible for managing the dbus::Bus shared by
// each menu. We need a separate object to own the dbus channel and to
// register/unregister the mapping between a menu and the com.canonical.dbusmenu
// instance we are offering.
class DbusAppmenuRegistrar {
public:
DbusAppmenuRegistrar(const DbusAppmenuRegistrar&) = delete;
DbusAppmenuRegistrar& operator=(const DbusAppmenuRegistrar&) = delete;
~DbusAppmenuRegistrar() = delete;
static DbusAppmenuRegistrar* GetInstance();
void OnMenuBarCreated(DbusAppmenu* menu);
void OnMenuBarDestroyed(DbusAppmenu* menu);
dbus::Bus* bus() { return bus_.get(); }
private:
friend class base::NoDestructor<DbusAppmenuRegistrar>;
enum MenuState {
// Initialize() hasn't been called.
kUninitialized,
// Initialize() has been called and we're waiting for an async result.
kInitializing,
// Initialize() failed, and the window will not be registered.
kInitializeFailed,
// Initialize() succeeded and we will register the window once the appmenu
// registrar has an owner.
kInitializeSucceeded,
// Initialize() succeeded and RegisterMenu has been sent.
kRegistered,
};
DbusAppmenuRegistrar();
void InitializeMenu(DbusAppmenu* menu);
// Sends the actual message.
void RegisterMenu(DbusAppmenu* menu);
void OnMenuInitialized(DbusAppmenu* menu, bool success);
void OnNameOwnerChanged(const std::string& service_owner);
scoped_refptr<dbus::Bus> bus_;
raw_ptr<dbus::ObjectProxy> registrar_proxy_;
bool service_has_owner_ = false;
// Maps menus to flags that indicate if the menu has been successfully
// initialized.
std::map<DbusAppmenu*, MenuState> menus_;
base::WeakPtrFactory<DbusAppmenuRegistrar> weak_ptr_factory_{this};
};
#endif // CHROME_BROWSER_UI_VIEWS_FRAME_DBUS_APPMENU_REGISTRAR_H_
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