layout/style/nsHTMLCSSStyleSheet.h

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 /*
   8  * style sheet and style rule processor representing style attributes
   9  */
  10
  11 #ifndef nsHTMLCSSStyleSheet_h_
  12 #define nsHTMLCSSStyleSheet_h_
  13
  14 #include "mozilla/Attributes.h"
  15 #include "mozilla/MemoryReporting.h"
  16
  17 #include "nsTHashMap.h"
  18
  19 class nsRuleWalker;
  20 struct MiscContainer;
  21
  22 namespace mozilla {
  23 enum class PseudoStyleType : uint8_t;
  24 namespace dom {
  25 class Element;
  26 }  // namespace dom
  27 }  // namespace mozilla
  28
  29 class nsHTMLCSSStyleSheet final {
  30  public:
  31   nsHTMLCSSStyleSheet();
  32
  33   NS_INLINE_DECL_REFCOUNTING(nsHTMLCSSStyleSheet)
  34
  35   void CacheStyleAttr(const nsAString& aSerialized, MiscContainer* aValue);
  36   void EvictStyleAttr(const nsAString& aSerialized, MiscContainer* aValue);
  37   MiscContainer* LookupStyleAttr(const nsAString& aSerialized);
  38
  39  private:
  40   ~nsHTMLCSSStyleSheet();
  41
  42   nsHTMLCSSStyleSheet(const nsHTMLCSSStyleSheet& aCopy) = delete;
  43   nsHTMLCSSStyleSheet& operator=(const nsHTMLCSSStyleSheet& aCopy) = delete;
  44
  45  protected:
  46   nsTHashMap<nsStringHashKey, MiscContainer*> mCachedStyleAttrs;
  47 };
  48
  49 #endif /* !defined(nsHTMLCSSStyleSheet_h_) */