layout/style/CSSRuleList.h

   1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* This Source Code Form is subject to the terms of the Mozilla Public
   3  * License, v. 2.0. If a copy of the MPL was not distributed with this
   4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   5
   6 #ifndef mozilla_dom_CSSRuleList_h
   7 #define mozilla_dom_CSSRuleList_h
   8
   9 #include "nsIDOMCSSRule.h"
  10 #include "nsIDOMCSSRuleList.h"
  11 #include "nsWrapperCache.h"
  12
  13 namespace mozilla {
  14 class CSSStyleSheet;
  15
  16 namespace dom {
  17
  18 // IID for the CSSRuleList interface
  19 #define NS_ICSSRULELIST_IID \
  20 { 0x56ac8d1c, 0xc1ed, 0x45fe, \
  21   { 0x9a, 0x4d, 0x3a, 0xdc, 0xf9, 0xd1, 0xb9, 0x3f } }
  22
  23 class CSSRuleList : public nsIDOMCSSRuleList
  24                   , public nsWrapperCache
  25 {
  26 public:
  27   NS_DECLARE_STATIC_IID_ACCESSOR(NS_ICSSRULELIST_IID)
  28
  29   NS_DECL_CYCLE_COLLECTING_ISUPPORTS
  30   NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(CSSRuleList)
  31
  32   virtual CSSStyleSheet* GetParentObject() = 0;
  33   virtual JSObject* WrapObject(JSContext* aCx) MOZ_OVERRIDE MOZ_FINAL;
  34
  35   NS_IMETHOD
  36   GetLength(uint32_t* aLength) MOZ_OVERRIDE MOZ_FINAL
  37   {
  38     *aLength = Length();
  39     return NS_OK;
  40   }
  41   NS_IMETHOD
  42   Item(uint32_t aIndex, nsIDOMCSSRule** aReturn) MOZ_OVERRIDE MOZ_FINAL
  43   {
  44     NS_IF_ADDREF(*aReturn = Item(aIndex));
  45     return NS_OK;
  46   }
  47
  48   // WebIDL API
  49   nsIDOMCSSRule* Item(uint32_t aIndex)
  50   {
  51     bool unused;
  52     return IndexedGetter(aIndex, unused);
  53   }
  54
  55   virtual nsIDOMCSSRule* IndexedGetter(uint32_t aIndex, bool& aFound) = 0;
  56   virtual uint32_t Length() = 0;
  57
  58 protected:
  59   virtual ~CSSRuleList() {}
  60 };
  61
  62 NS_DEFINE_STATIC_IID_ACCESSOR(CSSRuleList, NS_ICSSRULELIST_IID)
  63
  64 } // namespace dom
  65 } // namespace mozilla
  66
  67 #endif /* mozilla_dom_CSSRuleList_h */