chromium/third_party/blink/renderer/platform/mojo/heap_mojo_receiver_set.h

// Copyright 2020 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_PLATFORM_MOJO_HEAP_MOJO_RECEIVER_SET_H_
#define THIRD_PARTY_BLINK_RENDERER_PLATFORM_MOJO_HEAP_MOJO_RECEIVER_SET_H_

#include "base/gtest_prod_util.h"
#include "base/task/sequenced_task_runner.h"
#include "mojo/public/cpp/bindings/receiver.h"
#include "mojo/public/cpp/bindings/receiver_set.h"
#include "third_party/blink/renderer/platform/context_lifecycle_observer.h"
#include "third_party/blink/renderer/platform/heap/garbage_collected.h"
#include "third_party/blink/renderer/platform/heap/prefinalizer.h"
#include "third_party/blink/renderer/platform/mojo/heap_mojo_wrapper_mode.h"
#include "third_party/blink/renderer/platform/mojo/mojo_binding_context.h"

namespace blink {

// HeapMojoReceiverSet is a wrapper for mojo::ReceiverSet to be owned by a
// garbage-collected object. Blink is expected to use HeapMojoReceiverSet by
// default. HeapMojoReceiverSet must be associated with context.
// HeapMojoReceiverSet's constructor takes context as a mandatory parameter.
// HeapMojoReceiverSet resets the mojo connection when 1) the owner object is
// garbage-collected or 2) the associated ExecutionContext is detached.

// TODO(crbug.com/1058076) HeapMojoWrapperMode should be removed once we ensure
// that the interface is not used after ContextDestroyed().
template <typename Interface,
          typename Owner,
          HeapMojoWrapperMode Mode = HeapMojoWrapperMode::kWithContextObserver,
          typename ContextType = void>
class HeapMojoReceiverSet { … };

}  // namespace blink

#endif  // THIRD_PARTY_BLINK_RENDERER_PLATFORM_MOJO_HEAP_MOJO_RECEIVER_SET_H_