third_party/blink/renderer/core/dom/class_collection.h

/*
 * Copyright (C) 2007 Apple Inc. All rights reserved.
 * Copyright (C) 2007 David Smith (catfish.man@gmail.com)
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1.  Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 * 2.  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.
 * 3.  Neither the name of Apple Computer, Inc. ("Apple") 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 APPLE AND ITS 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 APPLE OR ITS 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, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef THIRD_PARTY_BLINK_RENDERER_CORE_DOM_CLASS_COLLECTION_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_DOM_CLASS_COLLECTION_H_

#include "third_party/blink/renderer/core/dom/element.h"
#include "third_party/blink/renderer/core/dom/space_split_string.h"
#include "third_party/blink/renderer/core/html/html_collection.h"

namespace blink {

class ClassCollection final : public HTMLCollection {
 public:
  ClassCollection(ContainerNode& root_node, const AtomicString& class_names);
  ClassCollection(ContainerNode& root_node,
                  CollectionType type,
                  const AtomicString& class_names);
  ~ClassCollection() override;

  bool ElementMatches(const Element&) const;

 private:
  SpaceSplitString class_names_;
};

DEFINE_TYPE_CASTS(ClassCollection,
                  LiveNodeListBase,
                  collection,
                  collection->GetType() == kClassCollectionType,
                  collection.GetType() == kClassCollectionType);

inline bool ClassCollection::ElementMatches(const Element& test_element) const {
  if (!test_element.HasClass())
    return false;
  if (!class_names_.size())
    return false;
  return test_element.ClassNames().ContainsAll(class_names_);
}

}  // namespace blink

#endif  // THIRD_PARTY_BLINK_RENDERER_CORE_DOM_CLASS_COLLECTION_H_