gecko-dev/dom/events/MutationEvent.cpp

130 строки
3.7 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);
}
NS_INTERFACE_MAP_BEGIN(MutationEvent)
NS_INTERFACE_MAP_ENTRY(nsIDOMMutationEvent)
NS_INTERFACE_MAP_END_INHERITING(Event)
NS_IMPL_ADDREF_INHERITED(MutationEvent, Event)
NS_IMPL_RELEASE_INHERITED(MutationEvent, Event)
already_AddRefed<nsINode>
MutationEvent::GetRelatedNode()
{
nsCOMPtr<nsINode> n =
do_QueryInterface(mEvent->AsMutationEvent()->mRelatedNode);
return n.forget();
}
NS_IMETHODIMP
MutationEvent::GetRelatedNode(nsIDOMNode** aRelatedNode)
{
nsCOMPtr<nsINode> relatedNode = GetRelatedNode();
nsCOMPtr<nsIDOMNode> relatedDOMNode = relatedNode ? relatedNode->AsDOMNode() : nullptr;
relatedDOMNode.forget(aRelatedNode);
return NS_OK;
}
NS_IMETHODIMP
MutationEvent::GetPrevValue(nsAString& aPrevValue)
{
InternalMutationEvent* mutation = mEvent->AsMutationEvent();
if (mutation->mPrevAttrValue)
mutation->mPrevAttrValue->ToString(aPrevValue);
return NS_OK;
}
NS_IMETHODIMP
MutationEvent::GetNewValue(nsAString& aNewValue)
{
InternalMutationEvent* mutation = mEvent->AsMutationEvent();
if (mutation->mNewAttrValue)
mutation->mNewAttrValue->ToString(aNewValue);
return NS_OK;
}
NS_IMETHODIMP
MutationEvent::GetAttrName(nsAString& aAttrName)
{
InternalMutationEvent* mutation = mEvent->AsMutationEvent();
if (mutation->mAttrName)
mutation->mAttrName->ToString(aAttrName);
return NS_OK;
}
uint16_t
MutationEvent::AttrChange()
{
return mEvent->AsMutationEvent()->mAttrChange;
}
NS_IMETHODIMP
MutationEvent::GetAttrChange(uint16_t* aAttrChange)
{
*aAttrChange = AttrChange();
return NS_OK;
}
NS_IMETHODIMP
MutationEvent::InitMutationEvent(const nsAString& aTypeArg,
bool aCanBubbleArg,
bool aCancelableArg,
nsIDOMNode* aRelatedNodeArg,
const nsAString& aPrevValueArg,
const nsAString& aNewValueArg,
const nsAString& aAttrNameArg,
uint16_t aAttrChangeArg)
{
nsresult rv = Event::InitEvent(aTypeArg, aCanBubbleArg, aCancelableArg);
NS_ENSURE_SUCCESS(rv, rv);
InternalMutationEvent* mutation = mEvent->AsMutationEvent();
mutation->mRelatedNode = aRelatedNodeArg;
if (!aPrevValueArg.IsEmpty())
mutation->mPrevAttrValue = do_GetAtom(aPrevValueArg);
if (!aNewValueArg.IsEmpty())
mutation->mNewAttrValue = do_GetAtom(aNewValueArg);
if (!aAttrNameArg.IsEmpty()) {
mutation->mAttrName = do_GetAtom(aAttrNameArg);
}
mutation->mAttrChange = aAttrChangeArg;
return NS_OK;
}
} // namespace dom
} // namespace mozilla
using namespace mozilla;
using namespace mozilla::dom;
already_AddRefed<MutationEvent>
NS_NewDOMMutationEvent(EventTarget* aOwner,
nsPresContext* aPresContext,
InternalMutationEvent* aEvent)
{
nsRefPtr<MutationEvent> it = new MutationEvent(aOwner, aPresContext, aEvent);
return it.forget();
}