LCOV - code coverage report
Current view: directory - objdir/dist/include - nsXBLBinding.h (source / functions) Found Hit Coverage
Test: app.info Lines: 5 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 Communicator client 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) 1998
      20                 :  * the Initial Developer. All Rights Reserved.
      21                 :  *
      22                 :  * Contributor(s):
      23                 :  *   Original Author: David W. Hyatt (hyatt@netscape.com)
      24                 :  *
      25                 :  * Alternatively, the contents of this file may be used under the terms of
      26                 :  * either of the GNU General Public License Version 2 or later (the "GPL"),
      27                 :  * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
      28                 :  * in which case the provisions of the GPL or the LGPL are applicable instead
      29                 :  * of those above. If you wish to allow use of your version of this file only
      30                 :  * under the terms of either the GPL or the LGPL, and not to allow others to
      31                 :  * use your version of this file under the terms of the MPL, indicate your
      32                 :  * decision by deleting the provisions above and replace them with the notice
      33                 :  * and other provisions required by the GPL or the LGPL. If you do not delete
      34                 :  * the provisions above, a recipient may use your version of this file under
      35                 :  * the terms of any one of the MPL, the GPL or the LGPL.
      36                 :  *
      37                 :  * ***** END LICENSE BLOCK ***** */
      38                 : 
      39                 : #ifndef nsXBLBinding_h_
      40                 : #define nsXBLBinding_h_
      41                 : 
      42                 : #include "nsCOMPtr.h"
      43                 : #include "nsAutoPtr.h"
      44                 : #include "nsINodeList.h"
      45                 : #include "nsIStyleRuleProcessor.h"
      46                 : #include "nsClassHashtable.h"
      47                 : #include "nsTArray.h"
      48                 : #include "nsCycleCollectionParticipant.h"
      49                 : #include "nsISupportsImpl.h"
      50                 : 
      51                 : class nsXBLPrototypeBinding;
      52                 : class nsIContent;
      53                 : class nsIAtom;
      54                 : class nsIDocument;
      55                 : class nsIScriptContext;
      56                 : class nsObjectHashtable;
      57                 : class nsXBLInsertionPoint;
      58                 : typedef nsTArray<nsRefPtr<nsXBLInsertionPoint> > nsInsertionPointList;
      59                 : struct JSContext;
      60                 : struct JSObject;
      61                 : 
      62                 : // *********************************************************************/
      63                 : // The XBLBinding class
      64                 : 
      65                 : class nsXBLBinding
      66                 : {
      67                 : public:
      68                 :   nsXBLBinding(nsXBLPrototypeBinding* aProtoBinding);
      69                 :   ~nsXBLBinding();
      70                 : 
      71                 :   /**
      72                 :    * XBLBindings are refcounted.  They are held onto in 3 ways:
      73                 :    * 1. The binding manager's binding table holds onto all bindings that are
      74                 :    *    currently attached to a content node.
      75                 :    * 2. Bindings hold onto their base binding.  This is important since
      76                 :    *    the base binding itself may not be attached to anything.
      77                 :    * 3. The binding manager holds an additional reference to bindings
      78                 :    *    which are queued to fire their constructors.
      79                 :    */
      80                 : 
      81               0 :   NS_INLINE_DECL_REFCOUNTING(nsXBLBinding)
      82                 : 
      83                 :   NS_DECL_CYCLE_COLLECTION_NATIVE_CLASS(nsXBLBinding)
      84                 : 
      85               0 :   nsXBLPrototypeBinding* PrototypeBinding() { return mPrototypeBinding; }
      86               0 :   nsIContent* GetAnonymousContent() { return mContent.get(); }
      87                 : 
      88               0 :   nsXBLBinding* GetBaseBinding() { return mNextBinding; }
      89                 :   void SetBaseBinding(nsXBLBinding *aBinding);
      90                 : 
      91               0 :   nsIContent* GetBoundElement() { return mBoundElement; }
      92                 :   void SetBoundElement(nsIContent *aElement);
      93                 : 
      94                 :   bool IsStyleBinding() const { return mIsStyleBinding; }
      95                 :   void SetIsStyleBinding(bool aIsStyle) { mIsStyleBinding = aIsStyle; }
      96                 : 
      97                 :   void MarkForDeath();
      98                 :   bool MarkedForDeath() const { return mMarkedForDeath; }
      99                 : 
     100                 :   bool HasStyleSheets() const;
     101                 :   bool InheritsStyle() const;
     102                 :   bool ImplementsInterface(REFNSIID aIID) const;
     103                 : 
     104                 :   void GenerateAnonymousContent();
     105                 :   void InstallAnonymousContent(nsIContent* aAnonParent, nsIContent* aElement);
     106                 :   static void UninstallAnonymousContent(nsIDocument* aDocument,
     107                 :                                         nsIContent* aAnonParent);
     108                 :   void InstallEventHandlers();
     109                 :   nsresult InstallImplementation();
     110                 : 
     111                 :   void ExecuteAttachedHandler();
     112                 :   void ExecuteDetachedHandler();
     113                 :   void UnhookEventHandlers();
     114                 : 
     115                 :   nsIAtom* GetBaseTag(PRInt32* aNameSpaceID);
     116                 :   nsXBLBinding* RootBinding();
     117                 :   nsXBLBinding* GetFirstStyleBinding();
     118                 : 
     119                 :   // Resolve all the fields for this binding and all ancestor bindings on the
     120                 :   // object |obj|.  False return means a JS exception was set.
     121                 :   bool ResolveAllFields(JSContext *cx, JSObject *obj) const;
     122                 : 
     123                 :   // Get the list of insertion points for aParent. The nsInsertionPointList
     124                 :   // is owned by the binding, you should not delete it.
     125                 :   nsresult GetInsertionPointsFor(nsIContent* aParent,
     126                 :                                  nsInsertionPointList** aResult);
     127                 : 
     128                 :   nsInsertionPointList* GetExistingInsertionPointsFor(nsIContent* aParent);
     129                 : 
     130                 :   // XXXbz this aIndex has nothing to do with an index into the child
     131                 :   // list of the insertion parent or anything.
     132                 :   nsIContent* GetInsertionPoint(const nsIContent* aChild, PRUint32* aIndex);
     133                 : 
     134                 :   nsIContent* GetSingleInsertionPoint(PRUint32* aIndex,
     135                 :                                       bool* aMultipleInsertionPoints);
     136                 : 
     137                 :   void AttributeChanged(nsIAtom* aAttribute, PRInt32 aNameSpaceID,
     138                 :                         bool aRemoveFlag, bool aNotify);
     139                 : 
     140                 :   void ChangeDocument(nsIDocument* aOldDocument, nsIDocument* aNewDocument);
     141                 : 
     142                 :   void WalkRules(nsIStyleRuleProcessor::EnumFunc aFunc, void* aData);
     143                 : 
     144                 :   nsINodeList* GetAnonymousNodes();
     145                 : 
     146                 :   static nsresult DoInitJSClass(JSContext *cx, JSObject *global, JSObject *obj,
     147                 :                                 const nsAFlatCString& aClassName,
     148                 :                                 nsXBLPrototypeBinding* aProtoBinding,
     149                 :                                 JSObject** aClassObject);
     150                 : 
     151                 :   bool AllowScripts();  // XXX make const
     152                 : 
     153                 :   void RemoveInsertionParent(nsIContent* aParent);
     154                 :   bool HasInsertionParent(nsIContent* aParent);
     155                 : 
     156                 : // MEMBER VARIABLES
     157                 : protected:
     158                 : 
     159                 :   nsXBLPrototypeBinding* mPrototypeBinding; // Weak, but we're holding a ref to the docinfo
     160                 :   nsCOMPtr<nsIContent> mContent; // Strong. Our anonymous content stays around with us.
     161                 :   nsRefPtr<nsXBLBinding> mNextBinding; // Strong. The derived binding owns the base class bindings.
     162                 :   
     163                 :   nsIContent* mBoundElement; // [WEAK] We have a reference, but we don't own it.
     164                 :   
     165                 :   // A hash from nsIContent* -> (a sorted array of nsXBLInsertionPoint)
     166                 :   nsClassHashtable<nsISupportsHashKey, nsInsertionPointList>* mInsertionPointTable;
     167                 : 
     168                 :   bool mIsStyleBinding;
     169                 :   bool mMarkedForDeath;
     170                 : };
     171                 : 
     172                 : #endif // nsXBLBinding_h_

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