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// Copyright 2019 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_PUBLIC_CPP_ACCESSIBILITY_FOCUS_RING_CONTROLLER_H_
#define ASH_PUBLIC_CPP_ACCESSIBILITY_FOCUS_RING_CONTROLLER_H_
#include <string>
#include <vector>
#include "ash/public/cpp/ash_public_export.h"
#include "base/macros.h"
#include "third_party/skia/include/core/SkColor.h"
namespace gfx {
class Rect;
}
namespace ash {
struct AccessibilityFocusRingInfo;
// Interface to control accessibility focus ring features.
class ASH_PUBLIC_EXPORT AccessibilityFocusRingController {
public:
static AccessibilityFocusRingController* Get();
// Sets the focus ring with the given ID to the specifications of focus_ring.
virtual void SetFocusRing(
const std::string& focus_ring_id,
std::unique_ptr<AccessibilityFocusRingInfo> focus_ring) = 0;
// Hides focus ring on screen with the given ID.
virtual void HideFocusRing(const std::string& focus_ring_id) = 0;
// Draws a highlight at the given rects in screen coordinates. Rects may be
// overlapping and will be merged into one layer. This looks similar to
// selecting a region with the cursor, except it is drawn in the foreground
// rather than behind a text layer.
// TODO(katie): Add |caller_id| to highlights as well if other Accessibility
// tools or extensions want to use this API.
virtual void SetHighlights(const std::vector<gfx::Rect>& rects_in_screen,
SkColor skcolor) = 0;
// Hides highlight on screen.
// TODO(katie): Add |caller_id| to highlights as well.
virtual void HideHighlights() = 0;
protected:
AccessibilityFocusRingController();
virtual ~AccessibilityFocusRingController();
private:
DISALLOW_COPY_AND_ASSIGN(AccessibilityFocusRingController);
};
} // namespace ash
#endif // ASH_PUBLIC_CPP_ACCESSIBILITY_FOCUS_RING_CONTROLLER_H_