third_party/blink/renderer/modules/remote_objects/remote_object.h

// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef THIRD_PARTY_BLINK_RENDERER_MODULES_REMOTE_OBJECTS_REMOTE_OBJECT_H_
#define THIRD_PARTY_BLINK_RENDERER_MODULES_REMOTE_OBJECTS_REMOTE_OBJECT_H_

#include "gin/handle.h"
#include "gin/interceptor.h"
#include "gin/object_template_builder.h"
#include "gin/wrappable.h"
#include "third_party/blink/renderer/modules/remote_objects/remote_object_gateway_impl.h"
#include "third_party/blink/renderer/platform/heap/persistent.h"

namespace blink {

// Gin wrapper for representing objects that could be injected by the browser.
// Recreated every time the window object is cleared.
class RemoteObject : public gin::Wrappable<RemoteObject>,
                     public gin::NamedPropertyInterceptor {
 public:
  static gin::WrapperInfo kWrapperInfo;

  RemoteObject(v8::Isolate*, RemoteObjectGatewayImpl*, int32_t);
  // Not copyable or movable
  RemoteObject(const RemoteObject&) = delete;
  RemoteObject& operator=(const RemoteObject&) = delete;
  ~RemoteObject() override;

  // gin::Wrappable.
  gin::ObjectTemplateBuilder GetObjectTemplateBuilder(
      v8::Isolate* isolate) override;

  // gin::NamedPropertyInterceptor
  v8::Local<v8::Value> GetNamedProperty(v8::Isolate* isolate,
                                        const std::string& property) override;
  std::vector<std::string> EnumerateNamedProperties(
      v8::Isolate* isolate) override;

  int32_t object_id() const { return object_id_; }

 private:
  static void RemoteObjectInvokeCallback(
      const v8::FunctionCallbackInfo<v8::Value>& info);
  void EnsureRemoteIsBound();

  WeakPersistent<RemoteObjectGatewayImpl> gateway_{nullptr};
  mojo::Remote<mojom::blink::RemoteObject> object_;
  int32_t object_id_;
};

}  // namespace blink

#endif  // THIRD_PARTY_BLINK_RENDERER_MODULES_REMOTE_OBJECTS_REMOTE_OBJECT_H_