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/*
* Copyright (C) 2011 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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*/
#ifndef THIRD_PARTY_BLINK_RENDERER_CORE_HTML_HTML_CONTENT_ELEMENT_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_HTML_HTML_CONTENT_ELEMENT_H_
#include "third_party/blink/renderer/core/core_export.h"
#include "third_party/blink/renderer/core/css/css_selector_list.h"
#include "third_party/blink/renderer/core/dom/v0_insertion_point.h"
#include "third_party/blink/renderer/platform/heap/handle.h"
namespace blink {
class CORE_EXPORT HTMLContentElement final : public V0InsertionPoint {
DEFINE_WRAPPERTYPEINFO();
public:
DECLARE_NODE_FACTORY(HTMLContentElement);
HTMLContentElement(Document&);
~HTMLContentElement() override;
bool CanAffectSelector() const override { return true; }
bool CanSelectNode(const HeapVector<Member<Node>, 32>& siblings,
int nth) const;
const CSSSelectorList& SelectorList() const;
bool IsSelectValid() const;
void Trace(blink::Visitor*) override;
private:
void ParseAttribute(const AttributeModificationParams&) override;
bool ValidateSelect() const;
void ParseSelect();
bool MatchSelector(Element&) const;
bool should_parse_select_;
bool is_valid_selector_;
AtomicString select_;
CSSSelectorList selector_list_;
};
inline const CSSSelectorList& HTMLContentElement::SelectorList() const {
if (should_parse_select_)
const_cast<HTMLContentElement*>(this)->ParseSelect();
return selector_list_;
}
inline bool HTMLContentElement::IsSelectValid() const {
if (should_parse_select_)
const_cast<HTMLContentElement*>(this)->ParseSelect();
return is_valid_selector_;
}
inline bool HTMLContentElement::CanSelectNode(
const HeapVector<Member<Node>, 32>& siblings,
int nth) const {
if (select_.IsNull() || select_.IsEmpty())
return true;
if (!IsSelectValid())
return false;
if (!siblings[nth]->IsElementNode())
return false;
return MatchSelector(*ToElement(siblings[nth]));
}
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_CORE_HTML_HTML_CONTENT_ELEMENT_H_