CSSStyleValue.h - mozsearch

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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/. */

#ifndef LAYOUT_STYLE_TYPEDOM_CSSSTYLEVALUE_H_

#define LAYOUT_STYLE_TYPEDOM_CSSSTYLEVALUE_H_

#include "js/TypeDecls.h"

#include "nsCOMPtr.h"

#include "nsISupports.h"

#include "nsISupportsImpl.h"

#include "nsStringFwd.h"

#include "nsTArrayForwardDeclare.h"

#include "nsWrapperCache.h"

template <class T>

class RefPtr;

namespace mozilla {

struct CSSPropertyId;

class ErrorResult;

struct StylePropertyTypedValue;

namespace dom {

class GlobalObject;

class CSSKeywordValue;

class CSSUnsupportedValue;

class CSSNumericValue;

class CSSTransformValue;

class CSSStyleValue : public nsISupports, public nsWrapperCache {

 public:

  enum class StyleValueType {

    Uninitialized,  // TODO: Remove once the implementation is complete.

    UnsupportedValue,

    KeywordValue,

    NumericValue,

    TransformValue,

};

  explicit CSSStyleValue(nsCOMPtr<nsISupports> aParent);

  CSSStyleValue(nsCOMPtr<nsISupports> aParent, StyleValueType aStyleValueType);

  static RefPtr<CSSStyleValue> Create(nsCOMPtr<nsISupports> aParent,

                                      const CSSPropertyId& aPropertyId,

                                      StylePropertyTypedValue&& aTypedValue);

  NS_DECL_CYCLE_COLLECTING_ISUPPORTS

  NS_DECL_CYCLE_COLLECTION_WRAPPERCACHE_CLASS(CSSStyleValue)

  nsISupports* GetParentObject() const;

  JSObject* WrapObject(JSContext*, JS::Handle<JSObject*> aGivenProto) override;

  // start of CSSStyleValue Web IDL declarations

  [[nodiscard]] static RefPtr<CSSStyleValue> Parse(const GlobalObject& aGlobal,

                                                   const nsACString& aProperty,

                                                   const nsACString& aCssText,

                                                   ErrorResult& aRv);

  static void ParseAll(const GlobalObject& aGlobal, const nsACString& aProperty,

                       const nsACString& aCssText,

                       nsTArray<RefPtr<CSSStyleValue>>& aRetVal,

                       ErrorResult& aRv);

  void Stringify(nsACString& aRetVal) const;

  // end of CSSStyleValue Web IDL declarations

  StyleValueType GetStyleValueType() const { return mStyleValueType; }

  bool IsCSSUnsupportedValue() const;

  // Defined in CSSUnsupportedValue.cpp

  const CSSUnsupportedValue& GetAsCSSUnsupportedValue() const;

  // Defined in CSSUnsupportedValue.cpp

  CSSUnsupportedValue& GetAsCSSUnsupportedValue();

  // Returns nullptr if this value is not a CSSUnsupportedValue, caller must

  // null check.

//

  // Defined in CSSUnsupportedValue.cpp

  const CSSPropertyId* GetPropertyId() const;

  // Defined in CSSUnsupportedValue.cpp

  CSSPropertyId* GetPropertyId();

  bool IsCSSKeywordValue() const;

  // Defined in CSSKeywordValue.cpp

  const CSSKeywordValue& GetAsCSSKeywordValue() const;

  // Defined in CSSKeywordValue.cpp

  CSSKeywordValue& GetAsCSSKeywordValue();

  bool IsCSSNumericValue() const;

  // Defined in CSSNumericValue.cpp

  const CSSNumericValue& GetAsCSSNumericValue() const;

  // Defined in CSSNumericValue.cpp

  CSSNumericValue& GetAsCSSNumericValue();

  bool IsCSSTransformValue() const;

  // Defined in CSSTransformValue.cpp

  const CSSTransformValue& GetAsCSSTransformValue() const;

  // Defined in CSSTransformValue.cpp

  CSSTransformValue& GetAsCSSTransformValue();

  void ToCssTextWithProperty(const CSSPropertyId& aPropertyId,

                             nsACString& aDest) const;

 protected:

  virtual ~CSSStyleValue() = default;

  nsCOMPtr<nsISupports> mParent;

  const StyleValueType mStyleValueType;

};

}  // namespace dom

}  // namespace mozilla

#endif  // LAYOUT_STYLE_TYPEDOM_CSSSTYLEVALUE_H_