Add spinner UI to show bluetooth is discovering devices.

ash/system/tray/tray_views.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_TRAY_TRAY_VIEWS_H_
 #define ASH_SYSTEM_TRAY_TRAY_VIEWS_H_
 
 #include "ash/ash_export.h"
 #include "ash/shelf_types.h"
 #include "ui/gfx/font.h"
 #include "ui/gfx/size.h"
 #include "ui/views/controls/button/custom_button.h"
 #include "ui/views/controls/button/image_button.h"
 #include "ui/views/controls/button/label_button.h"
 #include "ui/views/controls/button/label_button_border.h"
 #include "ui/views/controls/image_view.h"
 #include "ui/views/controls/scroll_view.h"
 #include "ui/views/controls/slider.h"
 #include "ui/views/view.h"
 
 typedef unsigned int SkColor;
 
 namespace gfx {
 class ImageSkia;
 }
 
 namespace views {
 class Label;
+class SmoothedThrobber;
 }
 
 namespace ash {
 namespace internal {
 
 class TrayItemView;
 
 // An image view with a specified width and height (kTrayPopupDetailsIconWidth).
 // If the specified width or height is zero, then the image size is used for
 // that dimension.
@@ skipping 225 matching lines @@
   class TrayBarButton;
 
   TrayBarButton* image_;
   views::Label* title_;
   int width_;
   int image_height_;
 
   DISALLOW_COPY_AND_ASSIGN(TrayBarButtonWithTitle);
 };
 
+// A throbber with tooltip and animation for starting/stopping.
+class ThrobberView : public views::View {
+ public:
+  ThrobberView();
+  virtual ~ThrobberView();
+
+  // Overriden from views::View.
+  virtual gfx::Size GetPreferredSize() OVERRIDE;

[sadrul, 2013/02/05 02:31:42]

Overrides usually go after the non-overrides.

[jennyz, 2013/02/05 17:37:20]

Done.

+  virtual void Layout() OVERRIDE;
+  virtual bool GetTooltipText(
+      const gfx::Point& p, string16* tooltip) const OVERRIDE;
+
+  void Start();
+  void Stop();
+  void SetTooltipText(const string16& tooltip_text);
+
+ private:
+  // Schedules animation for starting/stopping throbber.
+  void ScheduleAnimation(bool start_throbber);
+
+  views::SmoothedThrobber* throbber_;
+
+  // The current tooltip text.
+  string16 tooltip_text_;
+
+  DISALLOW_COPY_AND_ASSIGN(ThrobberView);
+};
+
 // The 'special' looking row in the uber-tray popups. This is usually the bottom
 // row in the popups, and has a fixed height.
 class SpecialPopupRow : public views::View {
  public:
   SpecialPopupRow();
   virtual ~SpecialPopupRow();
 
   void SetTextLabel(int string_id, ViewClickListener* listener);
   void SetContent(views::View* view);
 
   void AddButton(TrayPopupHeaderButton* button);
+  void AddThrobber(ThrobberView* throbber);
 
   views::View* content() const { return content_; }
 
  private:
   // Overridden from views::View.
   virtual gfx::Size GetPreferredSize() OVERRIDE;
   virtual void Layout() OVERRIDE;
 
   views::View* content_;
   views::View* button_container_;
@@ skipping 10 matching lines @@
 void SetTrayImageItemBorder(views::View* tray_view, ShelfAlignment alignment);
 // Sets the empty border around a label tray item for adjusting the space
 // around it.
 void SetTrayLabelItemBorder(TrayItemView* tray_view,
                             ShelfAlignment alignment);
 
 }  // namespace internal
 }  // namespace ash
 
 #endif  // ASH_SYSTEM_TRAY_TRAY_VIEWS_H_