gecko-dev/dom/events/MutationEvent.cpp

103 строки
3.0 KiB
C++

/* -*- 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 "nsCOMPtr.h"
#include "mozilla/dom/MutationEvent.h"
#include "mozilla/InternalMutationEvent.h"
class nsPresContext;
namespace mozilla {
namespace dom {
MutationEvent::MutationEvent(EventTarget* aOwner,
nsPresContext* aPresContext,
InternalMutationEvent* aEvent)
: Event(aOwner, aPresContext,
aEvent ? aEvent : new InternalMutationEvent(false, eVoidEvent))
{
mEventIsInternal = (aEvent == nullptr);
}
already_AddRefed<nsINode>
MutationEvent::GetRelatedNode()
{
nsCOMPtr<nsINode> n =
do_QueryInterface(mEvent->AsMutationEvent()->mRelatedNode);
return n.forget();
}
void
MutationEvent::GetPrevValue(nsAString& aPrevValue) const
{
InternalMutationEvent* mutation = mEvent->AsMutationEvent();
if (mutation->mPrevAttrValue)
mutation->mPrevAttrValue->ToString(aPrevValue);
}
void
MutationEvent::GetNewValue(nsAString& aNewValue) const
{
InternalMutationEvent* mutation = mEvent->AsMutationEvent();
if (mutation->mNewAttrValue)
mutation->mNewAttrValue->ToString(aNewValue);
}
void
MutationEvent::GetAttrName(nsAString& aAttrName) const
{
InternalMutationEvent* mutation = mEvent->AsMutationEvent();
if (mutation->mAttrName)
mutation->mAttrName->ToString(aAttrName);
}
uint16_t
MutationEvent::AttrChange()
{
return mEvent->AsMutationEvent()->mAttrChange;
}
void
MutationEvent::InitMutationEvent(const nsAString& aType,
bool aCanBubble, bool aCancelable,
nsINode* aRelatedNode,
const nsAString& aPrevValue,
const nsAString& aNewValue,
const nsAString& aAttrName,
uint16_t& aAttrChange,
ErrorResult& aRv)
{
NS_ENSURE_TRUE_VOID(!mEvent->mFlags.mIsBeingDispatched);
Event::InitEvent(aType, aCanBubble, aCancelable);
InternalMutationEvent* mutation = mEvent->AsMutationEvent();
mutation->mRelatedNode = aRelatedNode ? aRelatedNode->AsDOMNode() : nullptr;
if (!aPrevValue.IsEmpty())
mutation->mPrevAttrValue = NS_Atomize(aPrevValue);
if (!aNewValue.IsEmpty())
mutation->mNewAttrValue = NS_Atomize(aNewValue);
if (!aAttrName.IsEmpty()) {
mutation->mAttrName = NS_Atomize(aAttrName);
}
mutation->mAttrChange = aAttrChange;
}
} // namespace dom
} // namespace mozilla
using namespace mozilla;
using namespace mozilla::dom;
already_AddRefed<MutationEvent>
NS_NewDOMMutationEvent(EventTarget* aOwner,
nsPresContext* aPresContext,
InternalMutationEvent* aEvent)
{
RefPtr<MutationEvent> it = new MutationEvent(aOwner, aPresContext, aEvent);
return it.forget();
}