mash: Move StatusTray and StatusAreaWidget to //ash/common

ash/system/status_area_widget.h

-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef ASH_SYSTEM_STATUS_AREA_WIDGET_H_
-#define ASH_SYSTEM_STATUS_AREA_WIDGET_H_
-
-#include "ash/ash_export.h"
-#include "ash/common/login_status.h"
-#include "ash/common/shelf/shelf_types.h"
-#include "base/macros.h"
-#include "ui/views/widget/widget.h"
-
-namespace ash {
-class OverviewButtonTray;
-class ShellDelegate;
-class StatusAreaWidgetDelegate;
-class SystemTray;
-class WebNotificationTray;
-class WmShelf;
-class WmWindow;
-#if defined(OS_CHROMEOS)
-class LogoutButtonTray;
-class VirtualKeyboardTray;
-#endif
-
-class ASH_EXPORT StatusAreaWidget : public views::Widget {
- public:
-  StatusAreaWidget(WmWindow* status_container, WmShelf* wm_shelf);
-  ~StatusAreaWidget() override;
-
-  // Creates the SystemTray, WebNotificationTray and LogoutButtonTray.
-  void CreateTrayViews();
-
-  // Destroys the system tray and web notification tray. Called before
-  // tearing down the windows to avoid shutdown ordering issues.
-  void Shutdown();
-
-  // Update the alignment of the widget and tray views.
-  void SetShelfAlignment(ShelfAlignment alignment);
-
-  // Called by the client when the login status changes. Caches login_status
-  // and calls UpdateAfterLoginStatusChange for the system tray and the web
-  // notification tray.
-  void UpdateAfterLoginStatusChange(LoginStatus login_status);
-
-  StatusAreaWidgetDelegate* status_area_widget_delegate() {
-    return status_area_widget_delegate_;
-  }
-  SystemTray* system_tray() { return system_tray_; }
-  WebNotificationTray* web_notification_tray() {
-    return web_notification_tray_;
-  }
-  OverviewButtonTray* overview_button_tray() { return overview_button_tray_; }
-  WmShelf* wm_shelf() { return wm_shelf_; }
-
-  LoginStatus login_status() const { return login_status_; }
-
-  // Returns true if the shelf should be visible. This is used when the
-  // shelf is configured to auto-hide and test if the shelf should force
-  // the shelf to remain visible.
-  bool ShouldShowShelf() const;
-
-  // True if any message bubble is shown.
-  bool IsMessageBubbleShown() const;
-
-  // Notifies child trays, and the |status_area_widget_delegate_| to schedule a
-  // paint.
-  void SchedulePaint();
-
-  // Overridden from views::Widget:
-  void OnNativeWidgetActivationChanged(bool active) override;
-  void OnMouseEvent(ui::MouseEvent* event) override;
-  void OnGestureEvent(ui::GestureEvent* event) override;
-
- private:
-  void AddSystemTray();
-  void AddWebNotificationTray();
-#if defined(OS_CHROMEOS)
-  void AddLogoutButtonTray();
-  void AddVirtualKeyboardTray();
-#endif
-  void AddOverviewButtonTray();
-
-  // Weak pointers to View classes that are parented to StatusAreaWidget:
-  StatusAreaWidgetDelegate* status_area_widget_delegate_;
-  OverviewButtonTray* overview_button_tray_;
-  SystemTray* system_tray_;
-  WebNotificationTray* web_notification_tray_;
-#if defined(OS_CHROMEOS)
-  LogoutButtonTray* logout_button_tray_;
-  VirtualKeyboardTray* virtual_keyboard_tray_;
-#endif
-  LoginStatus login_status_;
-
-  WmShelf* wm_shelf_;
-
-  DISALLOW_COPY_AND_ASSIGN(StatusAreaWidget);
-};
-
-}  // namespace ash
-
-#endif  // ASH_SYSTEM_STATUS_AREA_WIDGET_H_