/* -*- 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/. */

/*

 * style sheet and style rule processor representing data from presentational

 * HTML attributes

 */

#ifndef nsHTMLStyleSheet_h_

#define nsHTMLStyleSheet_h_

#include "nsColor.h"

#include "nsCOMPtr.h"

#include "nsAtom.h"

#include "PLDHashTable.h"

#include "mozilla/Attributes.h"

#include "mozilla/MemoryReporting.h"

#include "nsString.h"

class nsIDocument;

class nsMappedAttributes;

struct RawServoDeclarationBlock;

class nsHTMLStyleSheet final

{

public:

  explicit nsHTMLStyleSheet(nsIDocument* aDocument);

  void SetOwningDocument(nsIDocument* aDocument);

  NS_INLINE_DECL_REFCOUNTING(nsHTMLStyleSheet)

  size_t DOMSizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const;

  void Reset();

  nsresult SetLinkColor(nscolor aColor);

  nsresult SetActiveLinkColor(nscolor aColor);

  nsresult SetVisitedLinkColor(nscolor aColor);

  const RefPtr<RawServoDeclarationBlock>& GetServoUnvisitedLinkDecl() const {

    return mServoUnvisitedLinkDecl;

  }

  const RefPtr<RawServoDeclarationBlock>& GetServoVisitedLinkDecl() const {

    return mServoVisitedLinkDecl;

  }

  const RefPtr<RawServoDeclarationBlock>& GetServoActiveLinkDecl() const {

    return mServoActiveLinkDecl;

  }

  // Mapped Attribute management methods

  already_AddRefed<nsMappedAttributes>

    UniqueMappedAttributes(nsMappedAttributes* aMapped);

  void DropMappedAttributes(nsMappedAttributes* aMapped);

  // For each mapped presentation attribute in the cache, resolve

  // the attached DeclarationBlock by running the mapping

  // and converting the ruledata to Servo specified values.

  void CalculateMappedServoDeclarations();

private:

  nsHTMLStyleSheet(const nsHTMLStyleSheet& aCopy) = delete;

  nsHTMLStyleSheet& operator=(const nsHTMLStyleSheet& aCopy) = delete;

  ~nsHTMLStyleSheet() {}

  // Implementation of SetLink/VisitedLink/ActiveLinkColor

  nsresult ImplLinkColorSetter(

      RefPtr<RawServoDeclarationBlock>& aDecl,

      nscolor aColor);

public: // for mLangRuleTable structures only

private:

  nsIDocument*            mDocument;

  RefPtr<RawServoDeclarationBlock> mServoUnvisitedLinkDecl;

  RefPtr<RawServoDeclarationBlock> mServoVisitedLinkDecl;

  RefPtr<RawServoDeclarationBlock> mServoActiveLinkDecl;

  PLDHashTable            mMappedAttrTable;

  // Whether or not the mapped attributes table

  // has been changed since the last call to

  // CalculateMappedServoDeclarations()

  bool                    mMappedAttrsDirty;

};

#endif /* !defined(nsHTMLStyleSheet_h_) */