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// Copyright 2020 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_SWITCH_ACCESS_POINT_SCAN_LAYER_H_
#define ASH_ACCESSIBILITY_SWITCH_ACCESS_POINT_SCAN_LAYER_H_
#include "ash/accessibility/switch_access/point_scan_layer_animation_info.h"
#include "ash/accessibility/ui/accessibility_layer.h"
#include "ash/ash_export.h"
#include "ui/compositor/layer.h"
namespace gfx {
class Canvas;
}
namespace ash {
class PointScanLayer : public AccessibilityLayer {
public:
enum Orientation {
HORIZONTAL = 0,
VERTICAL,
};
enum Type {
LINE = 0,
RANGE,
};
explicit PointScanLayer(AccessibilityLayerDelegate* delegate,
Orientation orientation,
Type type);
~PointScanLayer() override = default;
PointScanLayer(const PointScanLayer&) = delete;
PointScanLayer& operator=(const PointScanLayer&) = delete;
void Start();
void Pause();
bool IsMoving() const;
gfx::Rect bounds() { return layer()->bounds(); }
// AccessibilityLayer overrides:
int GetInset() const override;
private:
void DrawLineWithOffsets(gfx::Canvas* canvas,
cc::PaintFlags flags,
int x_offset,
int y_offset);
// ui:LayerDelegate overrides:
void OnPaintLayer(const ui::PaintContext& context) override;
void OnLayerChange(PointScanLayerAnimationInfo* animation_info);
struct Line {
gfx::Point start;
gfx::Point end;
};
Orientation orientation_;
Type type_;
Line line_;
bool is_moving_ = false;
};
} // namespace ash
#endif // ASH_ACCESSIBILITY_SWITCH_ACCESS_POINT_SCAN_LAYER_H_
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