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// 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 UI_VIEWS_ANIMATION_INK_DROP_MASK_H_
#define UI_VIEWS_ANIMATION_INK_DROP_MASK_H_
#include "base/gtest_prod_util.h"
#include "ui/compositor/layer.h"
#include "ui/compositor/layer_delegate.h"
#include "ui/views/views_export.h"
class SkPath;
namespace views {
// Base class for different ink drop masks. It is responsible for creating the
// ui::Layer that can be set as the mask layer for ink drop layer. Note that the
// mask's layer size (passed in the constructor) should always match size of the
// layer it is masking.
class VIEWS_EXPORT InkDropMask : public ui::LayerDelegate {
public:
InkDropMask(const InkDropMask&) = delete;
InkDropMask& operator=(const InkDropMask&) = delete;
~InkDropMask() override;
ui::Layer* layer() { return &layer_; }
protected:
explicit InkDropMask(const gfx::Size& layer_size);
private:
// ui::LayerDelegate:
void OnDeviceScaleFactorChanged(float old_device_scale_factor,
float new_device_scale_factor) override;
ui::Layer layer_;
};
// An ink-drop mask that paints a specified path.
class VIEWS_EXPORT PathInkDropMask : public InkDropMask {
public:
PathInkDropMask(const gfx::Size& layer_size, const SkPath& path);
PathInkDropMask(const PathInkDropMask&) = delete;
PathInkDropMask& operator=(const PathInkDropMask&) = delete;
private:
FRIEND_TEST_ALL_PREFIXES(InkDropMaskTest, PathInkDropMaskPaintsTriangle);
// InkDropMask:
void OnPaintLayer(const ui::PaintContext& context) override;
SkPath path_;
};
} // namespace views
#endif // UI_VIEWS_ANIMATION_INK_DROP_MASK_H_
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