ash/system/tray/tray_popup_item_container.h

   1 // Copyright (c) 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef ASH_SYSTEM_TRAY_TRAY_POPUP_ITEM_CONTAINER_H_
   6 #define ASH_SYSTEM_TRAY_TRAY_POPUP_ITEM_CONTAINER_H_
   7
   8 #include "ui/views/view.h"
   9
  10 namespace ash {
  11
  12 // A view which can optionally change the background color when a mouse is
  13 // hovering or a user is interacting via touch.
  14 class TrayPopupItemContainer : public views::View {
  15  public:
  16   TrayPopupItemContainer(views::View* view,
  17                          bool change_background,
  18                          bool draw_border);
  19
  20   ~TrayPopupItemContainer() override;
  21
  22   bool active() {
  23     return active_;
  24   }
  25
  26  private:
  27   // Sets whether the active background is to be used, and triggers a paint.
  28   void SetActive(bool active);
  29
  30   // views::View:
  31   void ChildVisibilityChanged(views::View* child) override;
  32   void ChildPreferredSizeChanged(views::View* child) override;
  33   void OnMouseEntered(const ui::MouseEvent& event) override;
  34   void OnMouseExited(const ui::MouseEvent& event) override;
  35   void OnGestureEvent(ui::GestureEvent* event) override;
  36   void OnPaintBackground(gfx::Canvas* canvas) override;
  37
  38   // True if either a mouse is hovering over this view, or if a user has touched
  39   // down.
  40   bool active_;
  41
  42   // True if mouse hover and touch feedback can alter the background color of
  43   // the container.
  44   bool change_background_;
  45
  46   DISALLOW_COPY_AND_ASSIGN(TrayPopupItemContainer);
  47 };
  48
  49 }  // namespace ash
  50
  51 #endif  // ASH_SYSTEM_TRAY_TRAY_POPUP_ITEM_CONTAINER_H_