LCOV - code coverage report
Current view: directory - objdir/dist/include/mozilla/css - Rule.h (source / functions) Found Hit Coverage
Test: app.info Lines: 11 0 0.0 %
Date: 2012-06-02 Functions: 6 0 0.0 %

       1                 : /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
       2                 : /* ***** BEGIN LICENSE BLOCK *****
       3                 :  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
       4                 :  *
       5                 :  * The contents of this file are subject to the Mozilla Public License Version
       6                 :  * 1.1 (the "License"); you may not use this file except in compliance with
       7                 :  * the License. You may obtain a copy of the License at
       8                 :  * http://www.mozilla.org/MPL/
       9                 :  *
      10                 :  * Software distributed under the License is distributed on an "AS IS" basis,
      11                 :  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
      12                 :  * for the specific language governing rights and limitations under the
      13                 :  * License.
      14                 :  *
      15                 :  * The Original Code is mozilla.org code.
      16                 :  *
      17                 :  * The Initial Developer of the Original Code is
      18                 :  * Netscape Communications Corporation.
      19                 :  * Portions created by the Initial Developer are Copyright (C) 1999
      20                 :  * the Initial Developer. All Rights Reserved.
      21                 :  *
      22                 :  * Contributor(s):
      23                 :  *
      24                 :  * Alternatively, the contents of this file may be used under the terms of
      25                 :  * either of the GNU General Public License Version 2 or later (the "GPL"),
      26                 :  * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
      27                 :  * in which case the provisions of the GPL or the LGPL are applicable instead
      28                 :  * of those above. If you wish to allow use of your version of this file only
      29                 :  * under the terms of either the GPL or the LGPL, and not to allow others to
      30                 :  * use your version of this file under the terms of the MPL, indicate your
      31                 :  * decision by deleting the provisions above and replace them with the notice
      32                 :  * and other provisions required by the GPL or the LGPL. If you do not delete
      33                 :  * the provisions above, a recipient may use your version of this file under
      34                 :  * the terms of any one of the MPL, the GPL or the LGPL.
      35                 :  *
      36                 :  * ***** END LICENSE BLOCK ***** */
      37                 : 
      38                 : /* base class for all rule types in a CSS style sheet */
      39                 : 
      40                 : #ifndef mozilla_css_Rule_h___
      41                 : #define mozilla_css_Rule_h___
      42                 : 
      43                 : #include "nsIStyleRule.h"
      44                 : #include "nsIDOMCSSRule.h"
      45                 : 
      46                 : class nsIStyleSheet;
      47                 : class nsCSSStyleSheet;
      48                 : struct nsRuleData;
      49                 : template<class T> struct already_AddRefed;
      50                 : 
      51                 : namespace mozilla {
      52                 : namespace css {
      53                 : class GroupRule;
      54                 : 
      55                 : #define DECL_STYLE_RULE_INHERIT_NO_DOMRULE  \
      56                 : virtual void MapRuleInfoInto(nsRuleData* aRuleData);
      57                 : 
      58                 : #define DECL_STYLE_RULE_INHERIT  \
      59                 : DECL_STYLE_RULE_INHERIT_NO_DOMRULE \
      60                 : virtual nsIDOMCSSRule* GetDOMRule();
      61                 : 
      62                 : class Rule : public nsIStyleRule {
      63                 : protected:
      64               0 :   Rule()
      65                 :     : mSheet(nsnull),
      66               0 :       mParentRule(nsnull)
      67                 :   {
      68               0 :   }
      69                 : 
      70               0 :   Rule(const Rule& aCopy)
      71                 :     : mSheet(aCopy.mSheet),
      72               0 :       mParentRule(aCopy.mParentRule)
      73                 :   {
      74               0 :   }
      75                 : 
      76               0 :   virtual ~Rule() {}
      77                 : 
      78                 : public:
      79                 :   // for implementing nsISupports
      80                 :   NS_IMETHOD_(nsrefcnt) AddRef();
      81                 :   NS_IMETHOD_(nsrefcnt) Release();
      82                 : protected:
      83                 :   nsAutoRefCnt mRefCnt;
      84                 :   NS_DECL_OWNINGTHREAD
      85                 : public:
      86                 : 
      87                 :   // The constants in this list must maintain the following invariants:
      88                 :   //   If a rule of type N must appear before a rule of type M in stylesheets
      89                 :   //   then N < M
      90                 :   // Note that nsCSSStyleSheet::RebuildChildList assumes that no other kinds of
      91                 :   // rules can come between two rules of type IMPORT_RULE.
      92                 :   enum {
      93                 :     UNKNOWN_RULE = 0,
      94                 :     CHARSET_RULE,
      95                 :     IMPORT_RULE,
      96                 :     NAMESPACE_RULE,
      97                 :     STYLE_RULE,
      98                 :     MEDIA_RULE,
      99                 :     FONT_FACE_RULE,
     100                 :     PAGE_RULE,
     101                 :     KEYFRAME_RULE,
     102                 :     KEYFRAMES_RULE,
     103                 :     DOCUMENT_RULE
     104                 :   };
     105                 : 
     106                 :   virtual PRInt32 GetType() const = 0;
     107                 : 
     108               0 :   nsCSSStyleSheet* GetStyleSheet() const { return mSheet; }
     109                 : 
     110                 :   virtual void SetStyleSheet(nsCSSStyleSheet* aSheet);
     111                 : 
     112               0 :   void SetParentRule(GroupRule* aRule) {
     113                 :     // We don't reference count this up reference. The group rule
     114                 :     // will tell us when it's going away or when we're detached from
     115                 :     // it.
     116               0 :     mParentRule = aRule;
     117               0 :   }
     118                 : 
     119                 :   /**
     120                 :    * Clones |this|. Never returns NULL.
     121                 :    */
     122                 :   virtual already_AddRefed<Rule> Clone() const = 0;
     123                 : 
     124                 :   // Note that this returns null for inline style rules since they aren't
     125                 :   // supposed to have a DOM rule representation (and our code wouldn't work).
     126                 :   virtual nsIDOMCSSRule* GetDOMRule() = 0;
     127                 : 
     128                 :   // to implement methods on nsIDOMCSSRule
     129                 :   nsresult GetParentRule(nsIDOMCSSRule** aParentRule);
     130                 :   nsresult GetParentStyleSheet(nsIDOMCSSStyleSheet** aSheet);
     131                 : 
     132                 :   // This is pure virtual because all of Rule's data members are non-owning and
     133                 :   // thus measured elsewhere.
     134                 :   virtual NS_MUST_OVERRIDE size_t
     135                 :     SizeOfIncludingThis(nsMallocSizeOfFun aMallocSizeOf) const = 0;
     136                 : 
     137                 :   // This is used to measure nsCOMArray<Rule>s.
     138                 :   static size_t SizeOfCOMArrayElementIncludingThis(css::Rule* aElement,
     139                 :                                                    nsMallocSizeOfFun aMallocSizeOf,
     140                 :                                                    void* aData);
     141                 : 
     142                 : protected:
     143                 :   nsCSSStyleSheet*  mSheet;
     144                 :   GroupRule*        mParentRule;
     145                 : };
     146                 : 
     147                 : } // namespace css
     148                 : } // namespace mozilla
     149                 : 
     150                 : #endif /* mozilla_css_Rule_h___ */

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