// Copyright 2013 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef CC_LAYERS_UI_RESOURCE_LAYER_IMPL_H_
#define CC_LAYERS_UI_RESOURCE_LAYER_IMPL_H_

#include <memory>
#include <string>

#include "base/memory/ptr_util.h"
#include "cc/cc_export.h"
#include "cc/layers/layer_impl.h"
#include "cc/resources/ui_resource_client.h"
#include "ui/gfx/geometry/rect.h"
#include "ui/gfx/geometry/size.h"

namespace viz {
class ClientResourceProvider;
}

namespace cc {

class CC_EXPORT UIResourceLayerImpl : public LayerImpl {
 public:
  static std::unique_ptr<UIResourceLayerImpl> Create(LayerTreeImpl* tree_impl,
                                                     int id) {
    return base::WrapUnique(new UIResourceLayerImpl(tree_impl, id));
  }
  UIResourceLayerImpl(const UIResourceLayerImpl&) = delete;
  ~UIResourceLayerImpl() override;

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

  void SetUIResourceId(UIResourceId uid);
  UIResourceId ui_resource_id() const { return ui_resource_id_; }

  void SetImageBounds(const gfx::Size& image_bounds);
  gfx::Size image_bounds() const { return image_bounds_; }

  // Sets a UV transform to be used at draw time. Defaults to (0, 0) and (1, 1).
  void SetUV(const gfx::PointF& top_left, const gfx::PointF& bottom_right);
  const gfx::PointF& uv_top_left() const { return uv_top_left_; }
  const gfx::PointF& uv_bottom_right() const { return uv_bottom_right_; }

  mojom::LayerType GetLayerType() const override;
  std::unique_ptr<LayerImpl> CreateLayerImpl(
      LayerTreeImpl* tree_impl) const override;
  void PushPropertiesTo(LayerImpl* layer) override;

  bool WillDraw(DrawMode draw_mode,
                viz::ClientResourceProvider* resource_provider) override;
  void AppendQuads(const AppendQuadsContext& context,
                   viz::CompositorRenderPass* render_pass,
                   AppendQuadsData* append_quads_data) override;

  void AsValueInto(base::trace_event::TracedValue* state) const override;

 protected:
  UIResourceLayerImpl(LayerTreeImpl* tree_impl, int id);

  // The size of the resource bitmap in pixels.
  gfx::Size image_bounds_;

  UIResourceId ui_resource_id_;

  gfx::PointF uv_top_left_;
  gfx::PointF uv_bottom_right_;
};

}  // namespace cc

#endif  // CC_LAYERS_UI_RESOURCE_LAYER_IMPL_H_