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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 "ScriptableContentIterator.h"
#include "mozilla/ContentIterator.h"
#include "nsINode.h"
#include "nsRange.h"
namespace mozilla {
NS_IMPL_CYCLE_COLLECTING_ADDREF(ScriptableContentIterator)
NS_IMPL_CYCLE_COLLECTING_RELEASE(ScriptableContentIterator)
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(ScriptableContentIterator)
NS_INTERFACE_MAP_ENTRY(nsIScriptableContentIterator)
NS_INTERFACE_MAP_ENTRY(nsISupports)
NS_INTERFACE_MAP_END
NS_IMPL_CYCLE_COLLECTION_CLASS(ScriptableContentIterator)
NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(ScriptableContentIterator)
if (tmp->mContentIterator) {
switch (tmp->mIteratorType) {
case POST_ORDER_ITERATOR:
default:
ImplCycleCollectionUnlink(
static_cast<PostContentIterator&>(*tmp->mContentIterator));
break;
case PRE_ORDER_ITERATOR:
ImplCycleCollectionUnlink(
static_cast<PreContentIterator&>(*tmp->mContentIterator));
break;
case SUBTREE_ITERATOR:
ImplCycleCollectionUnlink(
static_cast<ContentSubtreeIterator&>(*tmp->mContentIterator));
break;
}
}
NS_IMPL_CYCLE_COLLECTION_UNLINK_END
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(ScriptableContentIterator)
if (tmp->mContentIterator) {
switch (tmp->mIteratorType) {
case POST_ORDER_ITERATOR:
default:
ImplCycleCollectionTraverse(
cb, static_cast<PostContentIterator&>(*tmp->mContentIterator),
"mContentIterator");
break;
case PRE_ORDER_ITERATOR:
ImplCycleCollectionTraverse(
cb, static_cast<PreContentIterator&>(*tmp->mContentIterator),
"mContentIterator");
break;
case SUBTREE_ITERATOR:
ImplCycleCollectionTraverse(
cb, static_cast<ContentSubtreeIterator&>(*tmp->mContentIterator),
"mContentIterator");
break;
}
}
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
ScriptableContentIterator::ScriptableContentIterator()
: mIteratorType(NOT_INITIALIZED) {}
void ScriptableContentIterator::EnsureContentIterator() {
if (mContentIterator) {
return;
}
switch (mIteratorType) {
case POST_ORDER_ITERATOR:
default:
mContentIterator = MakeUnique<PostContentIterator>();
break;
case PRE_ORDER_ITERATOR:
mContentIterator = MakeUnique<PreContentIterator>();
break;
case SUBTREE_ITERATOR:
mContentIterator = MakeUnique<ContentSubtreeIterator>();
break;
}
}
NS_IMETHODIMP
ScriptableContentIterator::InitWithRootNode(IteratorType aType,
nsINode* aRoot) {
if (aType == NOT_INITIALIZED ||
(mIteratorType != NOT_INITIALIZED && aType != mIteratorType)) {
return NS_ERROR_INVALID_ARG;
}
mIteratorType = aType;
EnsureContentIterator();
return mContentIterator->Init(aRoot);
}
NS_IMETHODIMP
ScriptableContentIterator::InitWithRange(IteratorType aType, nsRange* aRange) {
if (aType == NOT_INITIALIZED ||
(mIteratorType != NOT_INITIALIZED && aType != mIteratorType)) {
return NS_ERROR_INVALID_ARG;
}
mIteratorType = aType;
EnsureContentIterator();
return mContentIterator->Init(aRange);
}
NS_IMETHODIMP
ScriptableContentIterator::InitWithRangeAllowCrossShadowBoundary(
IteratorType aType, nsRange* aRange) {
if (aType == NOT_INITIALIZED ||
(mIteratorType != NOT_INITIALIZED && aType != mIteratorType) ||
aType != SUBTREE_ITERATOR) {
return NS_ERROR_INVALID_ARG;
}
mIteratorType = aType;
MOZ_ASSERT(mIteratorType == SUBTREE_ITERATOR);
EnsureContentIterator();
return static_cast<ContentSubtreeIterator*>(mContentIterator.get())
->InitWithAllowCrossShadowBoundary(aRange);
}
NS_IMETHODIMP
ScriptableContentIterator::InitWithPositions(IteratorType aType,
nsINode* aStartContainer,
uint32_t aStartOffset,
nsINode* aEndContainer,
uint32_t aEndOffset) {
if (aType == NOT_INITIALIZED ||
(mIteratorType != NOT_INITIALIZED && aType != mIteratorType)) {
return NS_ERROR_INVALID_ARG;
}
mIteratorType = aType;
EnsureContentIterator();
return mContentIterator->Init(aStartContainer, aStartOffset, aEndContainer,
aEndOffset);
}
NS_IMETHODIMP
ScriptableContentIterator::First() {
if (!mContentIterator) {
return NS_ERROR_NOT_INITIALIZED;
}
mContentIterator->First();
return NS_OK;
}
NS_IMETHODIMP
ScriptableContentIterator::Last() {
if (!mContentIterator) {
return NS_ERROR_NOT_INITIALIZED;
}
mContentIterator->Last();
return NS_OK;
}
NS_IMETHODIMP
ScriptableContentIterator::Next() {
if (!mContentIterator) {
return NS_ERROR_NOT_INITIALIZED;
}
mContentIterator->Next();
return NS_OK;
}
NS_IMETHODIMP
ScriptableContentIterator::Prev() {
if (!mContentIterator) {
return NS_ERROR_NOT_INITIALIZED;
}
mContentIterator->Prev();
return NS_OK;
}
NS_IMETHODIMP
ScriptableContentIterator::GetCurrentNode(nsINode** aNode) {
if (!mContentIterator) {
return NS_ERROR_NOT_INITIALIZED;
}
NS_IF_ADDREF(*aNode = mContentIterator->GetCurrentNode());
return NS_OK;
}
NS_IMETHODIMP
ScriptableContentIterator::GetIsDone(bool* aIsDone) {
if (!mContentIterator) {
return NS_ERROR_NOT_INITIALIZED;
}
*aIsDone = mContentIterator->IsDone();
return NS_OK;
}
NS_IMETHODIMP
ScriptableContentIterator::PositionAt(nsINode* aNode) {
if (!mContentIterator) {
return NS_ERROR_NOT_INITIALIZED;
}
return mContentIterator->PositionAt(aNode);
}
} // namespace mozilla
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