third_party/blink/renderer/core/html/custom/v0_custom_element_lifecycle_callbacks.h

/*
 * Copyright (C) 2013 Google Inc. All rights reserved.
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 * modification, are permitted provided that the following conditions are
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 * in the documentation and/or other materials provided with the
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 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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#ifndef THIRD_PARTY_BLINK_RENDERER_CORE_HTML_CUSTOM_V0_CUSTOM_ELEMENT_LIFECYCLE_CALLBACKS_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_HTML_CUSTOM_V0_CUSTOM_ELEMENT_LIFECYCLE_CALLBACKS_H_

#include "third_party/blink/renderer/platform/heap/handle.h"
#include "third_party/blink/renderer/platform/wtf/text/atomic_string.h"

namespace blink {

class Element;

class V0CustomElementLifecycleCallbacks
    : public GarbageCollected<V0CustomElementLifecycleCallbacks> {
 public:
  virtual ~V0CustomElementLifecycleCallbacks() = default;

  enum CallbackType {
    kNone = 0,
    kCreatedCallback = 1 << 0,
    kAttachedCallback = 1 << 1,
    kDetachedCallback = 1 << 2,
    kAttributeChangedCallback = 1 << 3
  };

  bool HasCallback(CallbackType type) const { return callback_type_ & type; }

  virtual void Created(Element*) = 0;
  virtual void Attached(Element*) = 0;
  virtual void Detached(Element*) = 0;
  virtual void AttributeChanged(Element*,
                                const AtomicString& name,
                                const AtomicString& old_value,
                                const AtomicString& new_value) = 0;

  virtual void Trace(Visitor* visitor) {}

 protected:
  explicit V0CustomElementLifecycleCallbacks(CallbackType type)
      : callback_type_(type) {}

 private:
  CallbackType callback_type_;
};

}  // namespace blink

#endif  // THIRD_PARTY_BLINK_RENDERER_CORE_HTML_CUSTOM_V0_CUSTOM_ELEMENT_LIFECYCLE_CALLBACKS_H_