blob: 6b30f389c9aa17cc4dabc9445faa824b79eb4e4a [file] [log] [blame]
// Copyright 2013 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <vector>
#include "flutter/flow/layers/layer.h"
namespace flutter {
class ContainerLayer : public Layer {
virtual void Add(std::shared_ptr<Layer> layer);
void Preroll(PrerollContext* context, const SkMatrix& matrix) override;
void Paint(PaintContext& context) const override;
#if defined(OS_FUCHSIA)
void CheckForChildLayerBelow(PrerollContext* context) override;
void UpdateScene(SceneUpdateContext& context) override;
#endif // defined(OS_FUCHSIA)
const std::vector<std::shared_ptr<Layer>>& layers() const { return layers_; }
void PrerollChildren(PrerollContext* context,
const SkMatrix& child_matrix,
SkRect* child_paint_bounds);
void PaintChildren(PaintContext& context) const;
#if defined(OS_FUCHSIA)
void UpdateSceneChildren(SceneUpdateContext& context);
#endif // defined(OS_FUCHSIA)
// For OpacityLayer to restructure to have a single child.
void ClearChildren() { layers_.clear(); }
// Try to prepare the raster cache for a given layer.
// The raster cache would fail if either of the followings is true:
// 1. The context has a platform view.
// 2. The context does not have a valid raster cache.
// 3. The layer's paint bounds does not intersect with the cull rect.
// We make this a static function instead of a member function that directy
// uses the "this" pointer as the layer because we sometimes need to raster
// cache a child layer and one can't access its child's protected method.
static void TryToPrepareRasterCache(PrerollContext* context,
Layer* layer,
const SkMatrix& matrix);
std::vector<std::shared_ptr<Layer>> layers_;
} // namespace flutter