gecko-dev/dom/xml/ProcessingInstruction.cpp

130 строки
4.1 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 "nsGkAtoms.h"
#include "nsUnicharUtils.h"
#include "mozilla/dom/ProcessingInstruction.h"
#include "mozilla/dom/ProcessingInstructionBinding.h"
#include "mozilla/dom/XMLStylesheetProcessingInstruction.h"
#include "mozilla/IntegerPrintfMacros.h"
#include "nsContentUtils.h"
already_AddRefed<mozilla::dom::ProcessingInstruction>
NS_NewXMLProcessingInstruction(nsNodeInfoManager *aNodeInfoManager,
const nsAString& aTarget,
const nsAString& aData)
{
using mozilla::dom::ProcessingInstruction;
using mozilla::dom::XMLStylesheetProcessingInstruction;
MOZ_ASSERT(aNodeInfoManager, "Missing nodeinfo manager");
RefPtr<nsAtom> target = NS_Atomize(aTarget);
MOZ_ASSERT(target);
if (target == nsGkAtoms::xml_stylesheet) {
RefPtr<XMLStylesheetProcessingInstruction> pi =
new XMLStylesheetProcessingInstruction(aNodeInfoManager, aData);
return pi.forget();
}
RefPtr<mozilla::dom::NodeInfo> ni;
ni = aNodeInfoManager->GetNodeInfo(nsGkAtoms::processingInstructionTagName,
nullptr, kNameSpaceID_None,
nsINode::PROCESSING_INSTRUCTION_NODE,
target);
RefPtr<ProcessingInstruction> instance =
new ProcessingInstruction(ni.forget(), aData);
return instance.forget();
}
namespace mozilla {
namespace dom {
ProcessingInstruction::ProcessingInstruction(already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo,
const nsAString& aData)
: CharacterData(std::move(aNodeInfo))
{
MOZ_ASSERT(mNodeInfo->NodeType() == nsINode::PROCESSING_INSTRUCTION_NODE,
"Bad NodeType in aNodeInfo");
SetTextInternal(0, mText.GetLength(),
aData.BeginReading(), aData.Length(),
false); // Don't notify (bug 420429).
}
ProcessingInstruction::~ProcessingInstruction()
{
}
// If you add nsIStyleSheetLinkingElement here, make sure we actually
// implement the nsStyleLinkElement methods.
NS_IMPL_ISUPPORTS_INHERITED0(ProcessingInstruction, CharacterData)
JSObject*
ProcessingInstruction::WrapNode(JSContext *aCx, JS::Handle<JSObject*> aGivenProto)
{
return ProcessingInstruction_Binding::Wrap(aCx, this, aGivenProto);
}
bool
ProcessingInstruction::GetAttrValue(nsAtom *aName, nsAString& aValue)
{
nsAutoString data;
GetData(data);
return nsContentUtils::GetPseudoAttributeValue(data, aName, aValue);
}
already_AddRefed<CharacterData>
ProcessingInstruction::CloneDataNode(mozilla::dom::NodeInfo *aNodeInfo,
bool aCloneText) const
{
nsAutoString data;
GetData(data);
RefPtr<mozilla::dom::NodeInfo> ni = aNodeInfo;
return do_AddRef(new ProcessingInstruction(ni.forget(), data));
}
Maybe<nsStyleLinkElement::SheetInfo>
ProcessingInstruction::GetStyleSheetInfo()
{
MOZ_ASSERT_UNREACHABLE("XMLStylesheetProcessingInstruction should override "
"this and we don't try to do stylesheet stuff. In "
"particular, we do not implement "
"nsIStyleSheetLinkingElement");
return Nothing();
}
#ifdef DEBUG
void
ProcessingInstruction::List(FILE* out, int32_t aIndent) const
{
int32_t index;
for (index = aIndent; --index >= 0; ) fputs(" ", out);
fprintf(out, "Processing instruction refcount=%" PRIuPTR "<", mRefCnt.get());
nsAutoString tmp;
ToCString(tmp, 0, mText.GetLength());
tmp.Insert(nsDependentAtomString(NodeInfo()->GetExtraName()).get(), 0);
fputs(NS_LossyConvertUTF16toASCII(tmp).get(), out);
fputs(">\n", out);
}
void
ProcessingInstruction::DumpContent(FILE* out, int32_t aIndent,
bool aDumpAll) const
{
}
#endif
} // namespace dom
} // namespace mozilla