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/*
* Copyright (C) 2000 Peter Kelly (pmk@post.com)
* Copyright (C) 2006 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.
*
*/
#ifndef THIRD_PARTY_BLINK_RENDERER_CORE_DOM_PROCESSING_INSTRUCTION_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_DOM_PROCESSING_INSTRUCTION_H_
#include "third_party/blink/renderer/core/core_export.h"
#include "third_party/blink/renderer/core/dom/character_data.h"
#include "third_party/blink/renderer/platform/loader/fetch/resource_client.h"
#include "third_party/blink/renderer/platform/wtf/casting.h"
namespace blink {
class StyleSheet;
class EventListener;
class CORE_EXPORT ProcessingInstruction final : public CharacterData,
private ResourceClient {
DEFINE_WRAPPERTYPEINFO();
public:
ProcessingInstruction(Document&, const String& target, const String& data);
~ProcessingInstruction() override;
void Trace(Visitor*) const override;
const String& target() const { return target_; }
const String& LocalHref() const { return local_href_; }
StyleSheet* sheet() const { return sheet_.Get(); }
bool IsCSS() const { return is_css_; }
bool IsXSL() const { return is_xsl_; }
void DidAttributeChanged();
bool IsLoading() const;
// For XSLT
class DetachableEventListener : public GarbageCollectedMixin {
public:
virtual ~DetachableEventListener() = default;
virtual EventListener* ToEventListener() = 0;
// Detach event listener from its processing instruction.
virtual void Detach() = 0;
void Trace(Visitor* visitor) const override {}
};
void SetEventListenerForXSLT(DetachableEventListener* listener) {
listener_for_xslt_ = listener;
}
EventListener* EventListenerForXSLT();
void ClearEventListenerForXSLT();
private:
String nodeName() const override;
CharacterData* CloneWithData(Document&, const String&) const override;
InsertionNotificationRequest InsertedInto(ContainerNode&) override;
void RemovedFrom(ContainerNode&) override;
void DetachLayoutTree(bool performing_reattach) final {}
bool CheckStyleSheet(String& href, String& charset);
void Process(const String& href, const String& charset);
void NotifyFinished(Resource*) override;
bool SheetLoaded() override;
void ParseStyleSheet(const String& sheet);
void ClearSheet();
void RemovePendingSheet();
String DebugName() const override { return "ProcessingInstruction"; }
String target_;
String local_href_;
String title_;
String media_;
Member<StyleSheet> sheet_;
bool loading_;
bool alternate_;
bool is_css_;
bool is_xsl_;
Member<DetachableEventListener> listener_for_xslt_;
};
template <>
struct DowncastTraits<ProcessingInstruction> {
static bool AllowFrom(const Node& node) {
return node.getNodeType() == Node::kProcessingInstructionNode;
}
};
inline bool IsXSLStyleSheet(const Node& node) {
return node.getNodeType() == Node::kProcessingInstructionNode &&
To<ProcessingInstruction>(node).IsXSL();
}
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_CORE_DOM_PROCESSING_INSTRUCTION_H_
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