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/*
* Copyright (C) 1999 Lars Knoll (knoll@kde.org)
* (C) 1999 Antti Koivisto (koivisto@kde.org)
* (C) 2001 Dirk Mueller (mueller@kde.org)
* Copyright (C) 2004, 2005, 2006, 2009 Apple Inc. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include "third_party/blink/renderer/core/dom/document_fragment.h"
#include "third_party/blink/renderer/core/dom/document.h"
#include "third_party/blink/renderer/core/dom/document_part_root.h"
#include "third_party/blink/renderer/core/dom/node_cloning_data.h"
#include "third_party/blink/renderer/core/dom/part_root.h"
#include "third_party/blink/renderer/core/dom/tree_scope.h"
#include "third_party/blink/renderer/core/execution_context/agent.h"
#include "third_party/blink/renderer/core/html/parser/html_document_parser.h"
#include "third_party/blink/renderer/core/xml/parser/xml_document_parser.h"
#include "third_party/blink/renderer/platform/bindings/exception_state.h"
#include "third_party/blink/renderer/platform/bindings/runtime_call_stats.h"
#include "third_party/blink/renderer/platform/runtime_enabled_features.h"
namespace blink {
DocumentFragment::DocumentFragment(Document* document,
ConstructionType construction_type)
: ContainerNode(document, construction_type) {}
DocumentFragment* DocumentFragment::Create(Document& document) {
return MakeGarbageCollected<DocumentFragment>(&document,
Node::kCreateDocumentFragment);
}
String DocumentFragment::nodeName() const {
return "#document-fragment";
}
bool DocumentFragment::ChildTypeAllowed(NodeType type) const {
switch (type) {
case kElementNode:
case kProcessingInstructionNode:
case kCommentNode:
case kTextNode:
case kCdataSectionNode:
return true;
default:
return false;
}
}
Node* DocumentFragment::Clone(Document& factory,
NodeCloningData& data,
ContainerNode* append_to,
ExceptionState&) const {
DCHECK_EQ(append_to, nullptr)
<< "DocumentFragment::Clone() doesn't support append_to";
DocumentFragment* clone = Create(factory);
DocumentPartRoot* part_root = nullptr;
DCHECK(!data.Has(CloneOption::kPreserveDOMPartsMinimalAPI) || !HasNodePart());
if (data.Has(CloneOption::kPreserveDOMParts)) {
DCHECK(RuntimeEnabledFeatures::DOMPartsAPIEnabled());
DCHECK(!RuntimeEnabledFeatures::DOMPartsAPIMinimalEnabled());
part_root = &clone->getPartRoot();
data.PushPartRoot(*part_root);
PartRoot::CloneParts(*this, *clone, data);
}
if (data.Has(CloneOption::kIncludeDescendants)) {
clone->CloneChildNodesFrom(*this, data);
}
DCHECK(!part_root || &data.CurrentPartRoot() == part_root);
return clone;
}
void DocumentFragment::ParseHTML(const String& source,
Element* context_element,
ParserContentPolicy parser_content_policy) {
RUNTIME_CALL_TIMER_SCOPE(
GetDocument().GetAgent().isolate(),
RuntimeCallStats::CounterId::kDocumentFragmentParseHTML);
HTMLDocumentParser::ParseDocumentFragment(source, this, context_element,
parser_content_policy);
}
bool DocumentFragment::ParseXML(const String& source,
Element* context_element,
ExceptionState& exception_state,
ParserContentPolicy parser_content_policy) {
return XMLDocumentParser::ParseDocumentFragment(
source, this, context_element, parser_content_policy, exception_state);
}
void DocumentFragment::ForgetChildren() {
DCHECK(HoldsUnnotifiedChildren());
if (!hasChildren()) {
return;
}
Node* next_child = firstChild();
do {
Node* child = next_child;
child->SetParentNode(nullptr);
child->SetPreviousSibling(nullptr);
next_child = child->nextSibling();
child->SetNextSibling(nullptr);
} while (next_child);
SetFirstChild(nullptr);
SetLastChild(nullptr);
}
void DocumentFragment::Trace(Visitor* visitor) const {
visitor->Trace(document_part_root_);
ContainerNode::Trace(visitor);
}
DocumentPartRoot& DocumentFragment::getPartRoot() {
CHECK(RuntimeEnabledFeatures::DOMPartsAPIEnabled());
if (!document_part_root_) {
document_part_root_ = MakeGarbageCollected<DocumentPartRoot>(*this);
// We use the existence of the Document's part root to signal the existence
// of Parts. So retrieve it here.
GetDocument().getPartRoot();
}
return *document_part_root_;
}
} // namespace blink
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