/* -*- 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/NotifyPaintEvent.h"

#include "mozilla/dom/PaintRequest.h"

#include "mozilla/GfxMessageUtils.h"

#include "nsContentUtils.h"

namespace mozilla {

namespace dom {

NotifyPaintEvent::NotifyPaintEvent(EventTarget* aOwner,

                                   nsPresContext* aPresContext,

                                   WidgetEvent* aEvent,

                                   EventMessage aEventMessage,

                                   nsTArray<nsRect>* aInvalidateRequests,

                                   uint64_t aTransactionId,

                                   DOMHighResTimeStamp aTimeStamp)

  : Event(aOwner, aPresContext, aEvent)

{

  if (mEvent) {

    mEvent->mMessage = aEventMessage;

  }

  if (aInvalidateRequests) {

    mInvalidateRequests.SwapElements(*aInvalidateRequests);

  }

  mTransactionId = aTransactionId;

  mTimeStamp = aTimeStamp;

}

nsRegion

NotifyPaintEvent::GetRegion(SystemCallerGuarantee)

{

  nsRegion r;

  for (uint32_t i = 0; i < mInvalidateRequests.Length(); ++i) {

    r.Or(r, mInvalidateRequests[i]);

    r.SimplifyOutward(10);

  }

  return r;

}

already_AddRefed<DOMRect>

NotifyPaintEvent::BoundingClientRect(SystemCallerGuarantee aGuarantee)

{

  RefPtr<DOMRect> rect = new DOMRect(ToSupports(this));

  if (mPresContext) {

    rect->SetLayoutRect(GetRegion(aGuarantee).GetBounds());

  }

  return rect.forget();

}

already_AddRefed<DOMRectList>

NotifyPaintEvent::ClientRects(SystemCallerGuarantee aGuarantee)

{

  nsISupports* parent = ToSupports(this);

  RefPtr<DOMRectList> rectList = new DOMRectList(parent);

  nsRegion r = GetRegion(aGuarantee);

  for (auto iter = r.RectIter(); !iter.Done(); iter.Next()) {

    RefPtr<DOMRect> rect = new DOMRect(parent);

    rect->SetLayoutRect(iter.Get());

    rectList->Append(rect);

  }

  return rectList.forget();

}

already_AddRefed<PaintRequestList>

NotifyPaintEvent::PaintRequests(SystemCallerGuarantee)

{

  Event* parent = this;

  RefPtr<PaintRequestList> requests = new PaintRequestList(parent);

  for (uint32_t i = 0; i < mInvalidateRequests.Length(); ++i) {

    RefPtr<PaintRequest> r = new PaintRequest(parent);

    r->SetRequest(mInvalidateRequests[i]);

    requests->Append(r);

  }

  return requests.forget();

}

void

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

                            bool aSerializeInterfaceType)

{

  if (aSerializeInterfaceType) {

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

  }

  Event::Serialize(aMsg, false);

  uint32_t length = mInvalidateRequests.Length();

  IPC::WriteParam(aMsg, length);

  for (uint32_t i = 0; i < length; ++i) {

    IPC::WriteParam(aMsg, mInvalidateRequests[i]);

  }

}

bool

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

{

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

  uint32_t length = 0;

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

  mInvalidateRequests.SetCapacity(length);

  for (uint32_t i = 0; i < length; ++i) {

    nsRect req;

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

    mInvalidateRequests.AppendElement(req);

  }

  return true;

}

uint64_t

NotifyPaintEvent::TransactionId(SystemCallerGuarantee)

{

  return mTransactionId;

}

DOMHighResTimeStamp

NotifyPaintEvent::PaintTimeStamp(SystemCallerGuarantee)

{

  return mTimeStamp;

}

} // namespace dom

} // namespace mozilla

using namespace mozilla;

using namespace mozilla::dom;

already_AddRefed<NotifyPaintEvent>

NS_NewDOMNotifyPaintEvent(EventTarget* aOwner,

                          nsPresContext* aPresContext,

                          WidgetEvent* aEvent,

                          EventMessage aEventMessage,

                          nsTArray<nsRect>* aInvalidateRequests,

                          uint64_t aTransactionId,

                          DOMHighResTimeStamp aTimeStamp)

{

  RefPtr<NotifyPaintEvent> it =

    new NotifyPaintEvent(aOwner, aPresContext, aEvent, aEventMessage,

                         aInvalidateRequests, aTransactionId, aTimeStamp);

  return it.forget();

}