chromium/src/third_party/blink/renderer/core/html/custom/custom_state_set.h

// Copyright 2021 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef THIRD_PARTY_BLINK_RENDERER_CORE_HTML_CUSTOM_CUSTOM_STATE_SET_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_HTML_CUSTOM_CUSTOM_STATE_SET_H_

#include "third_party/blink/renderer/bindings/core/v8/iterable.h"
#include "third_party/blink/renderer/platform/bindings/script_wrappable.h"

namespace blink {

class Element;

// This class is an implementation of 'CustomStateSet' IDL interface.
class CustomStateSet final : public ScriptWrappable,
                             public SetlikeIterable<String> {
  DEFINE_WRAPPERTYPEINFO();

 public:
  explicit CustomStateSet(Element& element);
  void Trace(Visitor* visitor) const override;

  // IDL bindings:
  void add(const String& value, ExceptionState& exception_state);
  uint32_t size() const;
  void clearForBinding(ScriptState*, ExceptionState&);
  bool deleteForBinding(ScriptState*, const String& value, ExceptionState&);
  bool hasForBinding(ScriptState*, const String& value, ExceptionState&) const;

  bool Has(const String& value) const;

 private:
  // blink::Iterable override:
  IterationSource* StartIteration(ScriptState* state, ExceptionState&) override;

  void InvalidateStyle() const;

  Member<Element> element_;
  LinkedHashSet<String> set_;

  friend class CustomStateIterationSource;
};

}  // namespace blink

#endif  // THIRD_PARTY_BLINK_RENDERER_CORE_HTML_CUSTOM_CUSTOM_STATE_SET_H_