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// Copyright 2017 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_VR_ELEMENTS_TEXTURED_ELEMENT_H_
#define CHROME_BROWSER_VR_ELEMENTS_TEXTURED_ELEMENT_H_
#include "base/memory/raw_ptr.h"
#include "chrome/browser/vr/elements/ui_element.h"
#include "chrome/browser/vr/skia_surface_provider.h"
#include "chrome/browser/vr/vr_ui_export.h"
#include "device/vr/gl_bindings.h"
#include "third_party/skia/include/core/SkRefCnt.h"
#include "ui/gfx/geometry/size.h"
namespace vr {
class UiTexture;
class VR_UI_EXPORT TexturedElement : public UiElement {
public:
TexturedElement();
TexturedElement(const TexturedElement&) = delete;
TexturedElement& operator=(const TexturedElement&) = delete;
~TexturedElement() override;
void Initialize(SkiaSurfaceProvider* provider) final;
bool HasDirtyTexture() const override;
void UpdateTexture() override;
void Render(UiElementRenderer* renderer,
const CameraModel& model) const final;
// Testing accessors.
void PrepareToDrawForTest() { PrepareToDraw(); }
gfx::Size texture_size_for_test() { return texture_size_; }
// Foreground and background colors are used pervasively in textured elements,
// but more element-specific colors should be set on the appropriate element.
void SetForegroundColor(SkColor color);
void SetBackgroundColor(SkColor color);
protected:
virtual UiTexture* GetTexture() const = 0;
bool PrepareToDraw() final;
private:
// Subclasses must return true if redrawing a texture depends on measurement
// (text, for example). If true, a texture dirtied by user input (after
// measurement) will not be redrawn until the following frame.
virtual bool TextureDependsOnMeasurement() const = 0;
virtual gfx::Size MeasureTextureSize() = 0;
gfx::Size texture_size_;
bool initialized_ = false;
raw_ptr<SkiaSurfaceProvider, DanglingUntriaged> provider_ = nullptr;
std::unique_ptr<SkiaSurfaceProvider::Texture> skia_texture_;
};
} // namespace vr
#endif // CHROME_BROWSER_VR_ELEMENTS_TEXTURED_ELEMENT_H_
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