third_party/blink/renderer/core/input/touch_list.h

/*
 * Copyright 2008, The Android Open Source Project
 *
 * 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.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``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 COMPUTER, INC. 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, 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_INPUT_TOUCH_LIST_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_INPUT_TOUCH_LIST_H_

#include "third_party/blink/renderer/core/core_export.h"
#include "third_party/blink/renderer/core/input/touch.h"
#include "third_party/blink/renderer/platform/bindings/script_wrappable.h"
#include "third_party/blink/renderer/platform/heap/handle.h"
#include "third_party/blink/renderer/platform/wtf/vector.h"

namespace blink {

class CORE_EXPORT TouchList final : public ScriptWrappable {
  DEFINE_WRAPPERTYPEINFO();

 public:
  static TouchList* Create() { return MakeGarbageCollected<TouchList>(); }

  static TouchList* Create(const HeapVector<Member<Touch>>& touches) {
    TouchList* list = MakeGarbageCollected<TouchList>();
    list->values_.AppendVector(touches);
    return list;
  }

  static TouchList* Adopt(HeapVector<Member<Touch>>& touches) {
    return MakeGarbageCollected<TouchList>(touches);
  }

  TouchList() = default;
  TouchList(HeapVector<Member<Touch>>& touches) { values_.swap(touches); }

  unsigned length() const { return values_.size(); }

  Touch* item(unsigned);
  const Touch* item(unsigned) const;

  void Append(Touch* touch) { values_.push_back(touch); }

  void Trace(Visitor*) override;

 private:
  HeapVector<Member<Touch>> values_;
};

}  // namespace blink

#endif  // THIRD_PARTY_BLINK_RENDERER_CORE_INPUT_TOUCH_LIST_H_