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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

/**
 * nsMappedAttributeElement is the base for elements supporting style mapped
 * attributes via nsMappedAttributes (HTML and MathML).
 */

#ifndef NS_MAPPEDATTRIBUTEELEMENT_H_
#define NS_MAPPEDATTRIBUTEELEMENT_H_

#include "mozilla/Attributes.h"
#include "mozilla/GenericSpecifiedValues.h"
#include "nsStyledElement.h"

class nsMappedAttributes;
struct nsRuleData;

typedef void (*nsMapRuleToAttributesFunc)(
    const nsMappedAttributes* aAttributes,
    mozilla::GenericSpecifiedValues* aData);

typedef nsStyledElement nsMappedAttributeElementBase;

class nsMappedAttributeElement : public nsMappedAttributeElementBase {
 protected:
  explicit nsMappedAttributeElement(
      already_AddRefed<mozilla::dom::NodeInfo>& aNodeInfo)
      : nsMappedAttributeElementBase(aNodeInfo) {}

 public:
  virtual nsMapRuleToAttributesFunc GetAttributeMappingFunction() const;

  static void MapNoAttributesInto(
      const nsMappedAttributes* aAttributes,
      mozilla::GenericSpecifiedValues* aGenericData);

#ifdef MOZ_OLD_STYLE
  NS_IMETHOD WalkContentStyleRules(nsRuleWalker* aRuleWalker) override;
#endif
  virtual bool SetAndSwapMappedAttribute(nsAtom* aName, nsAttrValue& aValue,
                                         bool* aValueWasSet,
                                         nsresult* aRetval) override;

  virtual void NodeInfoChanged(nsIDocument* aOldDoc) override;
};

#endif  // NS_MAPPEDATTRIBUTEELEMENT_H_