dom/base/IdleRequest.cpp
author Dave Townsend <dtownsend@oxymoronical.com>
Sun, 13 Jan 2019 17:44:29 -0800
changeset 453676 edca8877b0505cd1c31beaf6d907ca32e022aa52
parent 448947 6f3709b3878117466168c40affa7bca0b60cf75b
child 465336 f98f97f5f8e6dedc5cf3243a43445db13d3885c4
permissions -rw-r--r--
Backing out Bug 1518799 (changeset eace4709948c) because the target page is not yet available. a=backout

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#include "IdleRequest.h"

#include "mozilla/TimeStamp.h"
#include "mozilla/dom/IdleDeadline.h"
#include "mozilla/dom/PerformanceTiming.h"
#include "mozilla/dom/TimeoutManager.h"
#include "mozilla/dom/WindowBinding.h"
#include "nsComponentManagerUtils.h"
#include "nsGlobalWindow.h"
#include "nsISupportsPrimitives.h"
#include "nsPIDOMWindow.h"

namespace mozilla {
namespace dom {

IdleRequest::IdleRequest(IdleRequestCallback* aCallback, uint32_t aHandle)
    : mCallback(aCallback), mHandle(aHandle), mTimeoutHandle(Nothing()) {
  MOZ_DIAGNOSTIC_ASSERT(mCallback);
}

IdleRequest::~IdleRequest() {}

NS_IMPL_CYCLE_COLLECTION_CLASS(IdleRequest)

NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(IdleRequest)
  NS_IMPL_CYCLE_COLLECTION_UNLINK(mCallback)
  if (tmp->isInList()) {
    tmp->remove();
  }
NS_IMPL_CYCLE_COLLECTION_UNLINK_END

NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(IdleRequest)
  NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mCallback)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END

NS_IMPL_CYCLE_COLLECTION_ROOT_NATIVE(IdleRequest, AddRef)
NS_IMPL_CYCLE_COLLECTION_UNROOT_NATIVE(IdleRequest, Release)

void IdleRequest::SetTimeoutHandle(int32_t aHandle) {
  mTimeoutHandle = Some(aHandle);
}

uint32_t IdleRequest::GetTimeoutHandle() const {
  MOZ_DIAGNOSTIC_ASSERT(mTimeoutHandle.isSome());
  return mTimeoutHandle.value();
}

nsresult IdleRequest::IdleRun(nsPIDOMWindowInner* aWindow,
                              DOMHighResTimeStamp aDeadline, bool aDidTimeout) {
  MOZ_ASSERT(NS_IsMainThread());
  MOZ_DIAGNOSTIC_ASSERT(mCallback);

  ErrorResult error;
  RefPtr<IdleDeadline> deadline =
      new IdleDeadline(aWindow, aDidTimeout, aDeadline);
  mCallback->Call(*deadline, error, "requestIdleCallback handler");

  mCallback = nullptr;
  error.SuppressException();
  return error.StealNSResult();
}

}  // namespace dom
}  // namespace mozilla