DeviceMotionEvent.cpp

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/* -*- 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 "mozilla/dom/DeviceMotionEvent.h"

#include "nsContentUtils.h"

namespace mozilla::dom {

/******************************************************************************

 * DeviceMotionEvent

 *****************************************************************************/

NS_IMPL_CYCLE_COLLECTION_INHERITED(DeviceMotionEvent, Event, mAcceleration,

                                   mAccelerationIncludingGravity, mRotationRate)

NS_IMPL_ADDREF_INHERITED(DeviceMotionEvent, Event)

NS_IMPL_RELEASE_INHERITED(DeviceMotionEvent, Event)

NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(DeviceMotionEvent)

NS_INTERFACE_MAP_END_INHERITING(Event)

void DeviceMotionEvent::InitDeviceMotionEvent(

    const nsAString& aType, bool aCanBubble, bool aCancelable,

    const DeviceAccelerationInit& aAcceleration,

    const DeviceAccelerationInit& aAccelIncludingGravity,

    const DeviceRotationRateInit& aRotationRate,

    const Nullable<double>& aInterval) {

  InitDeviceMotionEvent(aType, aCanBubble, aCancelable, aAcceleration,

                        aAccelIncludingGravity, aRotationRate, aInterval,

                        Nullable<uint64_t>());

void DeviceMotionEvent::InitDeviceMotionEvent(

    const nsAString& aType, bool aCanBubble, bool aCancelable,

    const DeviceAccelerationInit& aAcceleration,

    const DeviceAccelerationInit& aAccelIncludingGravity,

    const DeviceRotationRateInit& aRotationRate,

    const Nullable<double>& aInterval, const Nullable<uint64_t>& aTimeStamp) {

  NS_ENSURE_TRUE_VOID(!mEvent->mFlags.mIsBeingDispatched);

  Event::InitEvent(aType, aCanBubble, aCancelable);

  mAcceleration = new DeviceAcceleration(this, aAcceleration.mX,

                                         aAcceleration.mY, aAcceleration.mZ);

  mAccelerationIncludingGravity = new DeviceAcceleration(

      this, aAccelIncludingGravity.mX, aAccelIncludingGravity.mY,

      aAccelIncludingGravity.mZ);

  mRotationRate = new DeviceRotationRate(

      this, aRotationRate.mAlpha, aRotationRate.mBeta, aRotationRate.mGamma);

  mInterval = aInterval;

  if (!aTimeStamp.IsNull()) {

    static mozilla::TimeStamp sInitialNow = mozilla::TimeStamp::Now();

    static uint64_t sInitialEventTime = aTimeStamp.Value();

    mEvent->mTimeStamp =

        sInitialNow + mozilla::TimeDuration::FromMicroseconds(

                          aTimeStamp.Value() - sInitialEventTime);

already_AddRefed<DeviceMotionEvent> DeviceMotionEvent::Constructor(

    const GlobalObject& aGlobal, const nsAString& aType,

    const DeviceMotionEventInit& aEventInitDict) {

  nsCOMPtr<EventTarget> t = do_QueryInterface(aGlobal.GetAsSupports());

  RefPtr<DeviceMotionEvent> e = new DeviceMotionEvent(t, nullptr, nullptr);

  e->InitEvent(aType, aEventInitDict.mBubbles, aEventInitDict.mCancelable);

  bool trusted = e->Init(t);

  e->mAcceleration = new DeviceAcceleration(e, aEventInitDict.mAcceleration.mX,

                                            aEventInitDict.mAcceleration.mY,

                                            aEventInitDict.mAcceleration.mZ);

  e->mAccelerationIncludingGravity =

      new DeviceAcceleration(e, aEventInitDict.mAccelerationIncludingGravity.mX,

                             aEventInitDict.mAccelerationIncludingGravity.mY,

                             aEventInitDict.mAccelerationIncludingGravity.mZ);

  e->mRotationRate = new DeviceRotationRate(

      e, aEventInitDict.mRotationRate.mAlpha,

      aEventInitDict.mRotationRate.mBeta, aEventInitDict.mRotationRate.mGamma);

  e->mInterval = aEventInitDict.mInterval;

  e->SetTrusted(trusted);

  e->SetComposed(aEventInitDict.mComposed);

  return e.forget();

/******************************************************************************

 * DeviceAcceleration

 *****************************************************************************/

NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(DeviceAcceleration, mOwner)

DeviceAcceleration::DeviceAcceleration(DeviceMotionEvent* aOwner,

                                       const Nullable<double>& aX,

                                       const Nullable<double>& aY,

                                       const Nullable<double>& aZ)

    : mOwner(aOwner), mX(aX), mY(aY), mZ(aZ) {}

DeviceAcceleration::~DeviceAcceleration() = default;

/******************************************************************************

 * DeviceRotationRate

 *****************************************************************************/

NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(DeviceRotationRate, mOwner)

DeviceRotationRate::DeviceRotationRate(DeviceMotionEvent* aOwner,

                                       const Nullable<double>& aAlpha,

                                       const Nullable<double>& aBeta,

                                       const Nullable<double>& aGamma)

    : mOwner(aOwner), mAlpha(aAlpha), mBeta(aBeta), mGamma(aGamma) {}

DeviceRotationRate::~DeviceRotationRate() = default;

}  // namespace mozilla::dom

using namespace mozilla;

using namespace mozilla::dom;

already_AddRefed<DeviceMotionEvent> NS_NewDOMDeviceMotionEvent(

    EventTarget* aOwner, nsPresContext* aPresContext, WidgetEvent* aEvent) {

  RefPtr<DeviceMotionEvent> it =

      new DeviceMotionEvent(aOwner, aPresContext, aEvent);

  return it.forget();