ash: Show better focus rects for the tray.

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_
 #pragma once
 
 #include "ui/gfx/font.h"
 #include "ui/gfx/size.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"
 
 class SkBitmap;
 typedef unsigned int SkColor;
 
 namespace views {
 class Label;
 }
 
 namespace ash {
@@ skipping 25 matching lines @@
 
  protected:
   // Performs an action when user clicks on the view (on mouse-press event), or
   // presses a key when this view is in focus. Returns true if the event has
   // been handled and an action was performed. Returns false otherwise.
   virtual bool PerformAction(const views::Event& event) = 0;
 
   // Overridden from views::View.
   virtual bool OnKeyPressed(const views::KeyEvent& event) OVERRIDE;
   virtual bool OnMousePressed(const views::MouseEvent& event) OVERRIDE;
+  virtual void OnPaintFocusBorder(gfx::Canvas* canvas) OVERRIDE;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(ActionableView);
 };
 
 class ViewClickListener {
  public:
   virtual ~ViewClickListener() {}
   virtual void ClickedOn(views::View* sender) = 0;
 };
@@ skipping 55 matching lines @@
   virtual gfx::Size GetPreferredSize() OVERRIDE;
   virtual void OnBoundsChanged(const gfx::Rect& previous_bounds) OVERRIDE;
   virtual void OnMouseEntered(const views::MouseEvent& event) OVERRIDE;
   virtual void OnPaintFocusBorder(gfx::Canvas* canvas) OVERRIDE;
 
   gfx::Size fixed_size_;
 
   DISALLOW_COPY_AND_ASSIGN(FixedSizedScrollView);
 };
 
+// A slider with a custom focus border (with greater accessibility).
+class AccessibleSlider : public views::Slider {
+ public:
+  AccessibleSlider(views::SliderListener* listener, Orientation orientation);
+  virtual ~AccessibleSlider();
+
+ private:
+  // Overridden from views::View.
+  void OnPaintFocusBorder(gfx::Canvas* canvas) OVERRIDE;
+
+  DISALLOW_COPY_AND_ASSIGN(AccessibleSlider);
+};
+
 // Creates a container for the various detailed popups. Clicking on the view
 // triggers the callback in ViewClickListener.
 views::View* CreateDetailedHeaderEntry(int string_id,
                                        ViewClickListener* listener);
 
 // Sets up a Label properly for the tray (sets color, font etc.).
 void SetupLabelForTray(views::Label* label);
 
 }  // namespace internal
 }  // namespace ash
 
 #endif  // ASH_SYSTEM_TRAY_TRAY_VIEWS_H_