/* -*- 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 "base/basictypes.h"

#include "ipc/IPCMessageUtils.h"

#include "mozilla/dom/DOMRect.h"

#include "mozilla/dom/ScrollAreaEvent.h"

#include "mozilla/ContentEvents.h"

namespace mozilla {

namespace dom {

ScrollAreaEvent::ScrollAreaEvent(EventTarget* aOwner,

                                 nsPresContext* aPresContext,

                                 InternalScrollAreaEvent* aEvent)

  : UIEvent(aOwner, aPresContext, aEvent)

  , mClientArea(new DOMRect(nullptr))

{

  mClientArea->SetLayoutRect(aEvent ? aEvent->mArea : nsRect());

}

NS_IMPL_CYCLE_COLLECTION_INHERITED(ScrollAreaEvent, UIEvent,

                                   mClientArea)

NS_IMPL_ADDREF_INHERITED(ScrollAreaEvent, UIEvent)

NS_IMPL_RELEASE_INHERITED(ScrollAreaEvent, UIEvent)

NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(ScrollAreaEvent)

NS_INTERFACE_MAP_END_INHERITING(UIEvent)

void

ScrollAreaEvent::InitScrollAreaEvent(const nsAString& aEventType,

                                     bool aCanBubble,

                                     bool aCancelable,

                                     nsGlobalWindowInner* aView,

                                     int32_t aDetail,

                                     float aX,

                                     float aY,

                                     float aWidth,

                                     float aHeight)

{

  NS_ENSURE_TRUE_VOID(!mEvent->mFlags.mIsBeingDispatched);

  UIEvent::InitUIEvent(aEventType, aCanBubble, aCancelable, aView, aDetail);

  mClientArea->SetRect(aX, aY, aWidth, aHeight);

}

void

ScrollAreaEvent::Serialize(IPC::Message* aMsg,

                           bool aSerializeInterfaceType)

{

  if (aSerializeInterfaceType) {

    IPC::WriteParam(aMsg, NS_LITERAL_STRING("scrollareaevent"));

  }

  Event::Serialize(aMsg, false);

  IPC::WriteParam(aMsg, X());

  IPC::WriteParam(aMsg, Y());

  IPC::WriteParam(aMsg, Width());

  IPC::WriteParam(aMsg, Height());

}

bool

ScrollAreaEvent::Deserialize(const IPC::Message* aMsg, PickleIterator* aIter)

{

  NS_ENSURE_TRUE(Event::Deserialize(aMsg, aIter), false);

  float x, y, width, height;

  NS_ENSURE_TRUE(IPC::ReadParam(aMsg, aIter, &x), false);

  NS_ENSURE_TRUE(IPC::ReadParam(aMsg, aIter, &y), false);

  NS_ENSURE_TRUE(IPC::ReadParam(aMsg, aIter, &width), false);

  NS_ENSURE_TRUE(IPC::ReadParam(aMsg, aIter, &height), false);

  mClientArea->SetRect(x, y, width, height);

  return true;

}

} // namespace dom

} // namespace mozilla

using namespace mozilla;

using namespace mozilla::dom;

already_AddRefed<ScrollAreaEvent>

NS_NewDOMScrollAreaEvent(EventTarget* aOwner,

                         nsPresContext* aPresContext,

                         InternalScrollAreaEvent* aEvent)

{

  RefPtr<ScrollAreaEvent> ev =

    new ScrollAreaEvent(aOwner, aPresContext, aEvent);

  return ev.forget();

}