LCOV - code coverage report
Current view: directory - content/base/src - nsStyleLinkElement.h (source / functions) Found Hit Coverage
Test: app.info Lines: 2 1 50.0 %
Date: 2012-06-02 Functions: 2 1 50.0 %

       1                 : /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
       2                 :  * 
       3                 :  * ***** BEGIN LICENSE BLOCK *****
       4                 :  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
       5                 :  *
       6                 :  * The contents of this file are subject to the Mozilla Public License Version
       7                 :  * 1.1 (the "License"); you may not use this file except in compliance with
       8                 :  * the License. You may obtain a copy of the License at
       9                 :  * http://www.mozilla.org/MPL/
      10                 :  *
      11                 :  * Software distributed under the License is distributed on an "AS IS" basis,
      12                 :  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
      13                 :  * for the specific language governing rights and limitations under the
      14                 :  * License.
      15                 :  *
      16                 :  * The Original Code is Mozilla Communicator client code, released
      17                 :  * March 31, 1998.
      18                 :  *
      19                 :  * The Initial Developer of the Original Code is
      20                 :  * Netscape Communications Corporation.
      21                 :  * Portions created by the Initial Developer are Copyright (C) 1998-1999
      22                 :  * the Initial Developer. All Rights Reserved.
      23                 :  *
      24                 :  * Contributor(s):
      25                 :  *
      26                 :  * Alternatively, the contents of this file may be used under the terms of
      27                 :  * either of the GNU General Public License Version 2 or later (the "GPL"),
      28                 :  * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
      29                 :  * in which case the provisions of the GPL or the LGPL are applicable instead
      30                 :  * of those above. If you wish to allow use of your version of this file only
      31                 :  * under the terms of either the GPL or the LGPL, and not to allow others to
      32                 :  * use your version of this file under the terms of the MPL, indicate your
      33                 :  * decision by deleting the provisions above and replace them with the notice
      34                 :  * and other provisions required by the GPL or the LGPL. If you do not delete
      35                 :  * the provisions above, a recipient may use your version of this file under
      36                 :  * the terms of any one of the MPL, the GPL or the LGPL.
      37                 :  *
      38                 :  * ***** END LICENSE BLOCK ***** */
      39                 : 
      40                 : /*
      41                 :  * A base class which implements nsIStyleSheetLinkingElement and can
      42                 :  * be subclassed by various content nodes that want to load
      43                 :  * stylesheets (<style>, <link>, processing instructions, etc).
      44                 :  */
      45                 : 
      46                 : #ifndef nsStyleLinkElement_h___
      47                 : #define nsStyleLinkElement_h___
      48                 : 
      49                 : #include "nsCOMPtr.h"
      50                 : #include "nsIDOMLinkStyle.h"
      51                 : #include "nsIStyleSheetLinkingElement.h"
      52                 : #include "nsIStyleSheet.h"
      53                 : #include "nsIURI.h"
      54                 : #include "nsTArray.h"
      55                 : 
      56                 : #define PREFETCH      0x00000001
      57                 : #define DNS_PREFETCH  0x00000002
      58                 : #define STYLESHEET    0x00000004
      59                 : #define NEXT          0x00000008
      60                 : #define ALTERNATE     0x00000010
      61                 : 
      62                 : class nsIDocument;
      63                 : 
      64                 : class nsStyleLinkElement : public nsIDOMLinkStyle,
      65                 :                            public nsIStyleSheetLinkingElement
      66                 : {
      67                 : public:
      68                 :   nsStyleLinkElement();
      69                 :   virtual ~nsStyleLinkElement();
      70                 : 
      71                 :   NS_IMETHOD QueryInterface(REFNSIID aIID, void** aInstancePtr) = 0;
      72                 : 
      73                 :   // nsIDOMLinkStyle
      74                 :   NS_DECL_NSIDOMLINKSTYLE
      75                 : 
      76                 :   // nsIStyleSheetLinkingElement  
      77                 :   NS_IMETHOD SetStyleSheet(nsIStyleSheet* aStyleSheet);
      78                 :   NS_IMETHOD GetStyleSheet(nsIStyleSheet*& aStyleSheet);
      79                 :   NS_IMETHOD InitStyleLinkElement(bool aDontLoadStyle);
      80                 :   NS_IMETHOD UpdateStyleSheet(nsICSSLoaderObserver* aObserver,
      81                 :                               bool* aWillNotify,
      82                 :                               bool* aIsAlternate);
      83                 :   NS_IMETHOD SetEnableUpdates(bool aEnableUpdates);
      84                 :   NS_IMETHOD GetCharset(nsAString& aCharset);
      85                 : 
      86                 :   virtual void OverrideBaseURI(nsIURI* aNewBaseURI);
      87                 :   virtual void SetLineNumber(PRUint32 aLineNumber);
      88                 : 
      89                 :   static PRUint32 ParseLinkTypes(const nsAString& aTypes);
      90                 :   
      91              62 :   void UpdateStyleSheetInternal() { UpdateStyleSheetInternal(nsnull); }
      92                 : protected:
      93                 :   /**
      94                 :    * @param aOldDocument should be non-null only if we're updating because we
      95                 :    *                     removed the node from the document.
      96                 :    * @param aForceUpdate true will force the update even if the URI has not
      97                 :    *                     changed.  This should be used in cases when something
      98                 :    *                     about the content that affects the resulting sheet
      99                 :    *                     changed but the URI may not have changed.
     100                 :    */
     101                 :   nsresult UpdateStyleSheetInternal(nsIDocument *aOldDocument,
     102                 :                                     bool aForceUpdate = false);
     103                 : 
     104                 :   virtual already_AddRefed<nsIURI> GetStyleSheetURL(bool* aIsInline) = 0;
     105                 :   virtual void GetStyleSheetInfo(nsAString& aTitle,
     106                 :                                  nsAString& aType,
     107                 :                                  nsAString& aMedia,
     108                 :                                  bool* aIsAlternate) = 0;
     109                 : 
     110               0 :   nsIStyleSheet* GetStyleSheet() { return mStyleSheet; }
     111                 : 
     112                 : private:
     113                 :   /**
     114                 :    * @param aOldDocument should be non-null only if we're updating because we
     115                 :    *                     removed the node from the document.
     116                 :    * @param aForceUpdate true will force the update even if the URI has not
     117                 :    *                     changed.  This should be used in cases when something
     118                 :    *                     about the content that affects the resulting sheet
     119                 :    *                     changed but the URI may not have changed.
     120                 :    */
     121                 :   nsresult DoUpdateStyleSheet(nsIDocument *aOldDocument,
     122                 :                               nsICSSLoaderObserver* aObserver,
     123                 :                               bool* aWillNotify,
     124                 :                               bool* aIsAlternate,
     125                 :                               bool aForceUpdate);
     126                 : 
     127                 :   nsCOMPtr<nsIStyleSheet> mStyleSheet;
     128                 : protected:
     129                 :   bool mDontLoadStyle;
     130                 :   bool mUpdatesEnabled;
     131                 :   PRUint32 mLineNumber;
     132                 : };
     133                 : 
     134                 : #endif /* nsStyleLinkElement_h___ */
     135                 : 

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