mirror of
https://github.com/flutter/flutter.git
synced 2026-02-20 02:29:02 +08:00
55 lines
1.6 KiB
C++
55 lines
1.6 KiB
C++
// Copyright 2017 The Chromium 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_EXPORT_NODE_H_
|
|
#define FLUTTER_FLOW_EXPORT_NODE_H_
|
|
|
|
#include <memory>
|
|
|
|
#include <mx/eventpair.h>
|
|
|
|
#include "apps/mozart/lib/scene/client/resources.h"
|
|
#include "flutter/flow/scene_update_context.h"
|
|
#include "lib/ftl/build_config.h"
|
|
#include "lib/ftl/macros.h"
|
|
#include "lib/ftl/memory/ref_counted.h"
|
|
#include "lib/ftl/synchronization/mutex.h"
|
|
#include "lib/ftl/synchronization/thread_annotations.h"
|
|
#include "third_party/skia/include/core/SkPoint.h"
|
|
|
|
namespace flow {
|
|
|
|
// Represents a node which is being exported from the session.
|
|
// This object is created on the UI thread but the entity node it contains
|
|
// must be created and destroyed by the rasterizer thread.
|
|
//
|
|
// Therefore this object is thread-safe.
|
|
class ExportNode : public ftl::RefCountedThreadSafe<ExportNode> {
|
|
public:
|
|
ExportNode(uint32_t export_token_handle);
|
|
|
|
// Binds the export token to the entity node and adds it as a child of
|
|
// the specified container.
|
|
void Bind(SceneUpdateContext& context,
|
|
mozart::client::ContainerNode& container,
|
|
const SkPoint& offset,
|
|
float scale,
|
|
bool hit_testable);
|
|
|
|
private:
|
|
~ExportNode();
|
|
|
|
ftl::Mutex mutex_;
|
|
mx::eventpair export_token_ FTL_GUARDED_BY(mutex_);
|
|
std::unique_ptr<mozart::client::EntityNode> node_ FTL_GUARDED_BY(mutex_);
|
|
|
|
FRIEND_MAKE_REF_COUNTED(ExportNode);
|
|
FRIEND_REF_COUNTED_THREAD_SAFE(ExportNode);
|
|
FTL_DISALLOW_COPY_AND_ASSIGN(ExportNode);
|
|
};
|
|
|
|
} // namespace flow
|
|
|
|
#endif // FLUTTER_FLOW_EXPORT_NODE_H_
|