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ash / accessibility / ui / accessibility_cursor_ring_layer.h [blame]

// Copyright 2016 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef ASH_ACCESSIBILITY_UI_ACCESSIBILITY_CURSOR_RING_LAYER_H_
#define ASH_ACCESSIBILITY_UI_ACCESSIBILITY_CURSOR_RING_LAYER_H_

#include "ash/accessibility/ui/accessibility_focus_ring.h"
#include "ash/accessibility/ui/focus_ring_layer.h"
#include "ash/ash_export.h"

namespace ash {

// A subclass of FocusRingLayer that highlights the mouse cursor while it's
// moving, to make it easier to find visually.
class ASH_EXPORT AccessibilityCursorRingLayer : public FocusRingLayer {
 public:
  AccessibilityCursorRingLayer(AccessibilityLayerDelegate* delegate,
                               int red,
                               int green,
                               int blue);

  AccessibilityCursorRingLayer(const AccessibilityCursorRingLayer&) = delete;
  AccessibilityCursorRingLayer& operator=(const AccessibilityCursorRingLayer&) =
      delete;

  ~AccessibilityCursorRingLayer() override;

  // Create the layer and update its bounds and position in the hierarchy.
  void Set(const gfx::Point& location);

 private:
  // ui::LayerDelegate overrides:
  void OnPaintLayer(const ui::PaintContext& context) override;

  // The current location.
  gfx::Point location_;

  int red_;
  int green_;
  int blue_;
};

}  // namespace ash

#endif  // ASH_ACCESSIBILITY_UI_ACCESSIBILITY_CURSOR_RING_LAYER_H_