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embedded_views.h
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embedded_views.h
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// 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.
//
#ifndef FLUTTER_FLOW_EMBEDDED_VIEWS_H_
#define FLUTTER_FLOW_EMBEDDED_VIEWS_H_
#include <vector>
#include "flutter/fml/memory/ref_counted.h"
#include "third_party/skia/include/core/SkCanvas.h"
#include "third_party/skia/include/core/SkPoint.h"
#include "third_party/skia/include/core/SkSize.h"
namespace flow {
class EmbeddedViewParams {
public:
SkPoint offsetPixels;
SkSize sizePoints;
};
// This is only used on iOS when running in a non headless mode,
// in this case ExternalViewEmbedder is a reference to the
// FlutterPlatformViewsController which is owned by FlutterViewController.
class ExternalViewEmbedder {
public:
ExternalViewEmbedder() = default;
virtual void BeginFrame(SkISize frame_size) = 0;
virtual void PrerollCompositeEmbeddedView(int view_id) = 0;
virtual std::vector<SkCanvas*> GetCurrentCanvases() = 0;
// Must be called on the UI thread.
virtual SkCanvas* CompositeEmbeddedView(int view_id,
const EmbeddedViewParams& params) = 0;
virtual bool SubmitFrame(GrContext* context);
virtual ~ExternalViewEmbedder() = default;
FML_DISALLOW_COPY_AND_ASSIGN(ExternalViewEmbedder);
};
} // namespace flow
#endif // FLUTTER_FLOW_EMBEDDED_VIEWS_H_