LCOV - code coverage report
Current view: directory - layout/xul/base/src/tree/src - nsTreeContentView.h (source / functions) Found Hit Coverage
Test: app.info Lines: 3 1 33.3 %
Date: 2012-06-02 Functions: 6 1 16.7 %

       1                 : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       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 Jan Varga.
      18                 :  * Portions created by the Initial Developer are Copyright (C) 2001
      19                 :  * the Initial Developer. All Rights Reserved.
      20                 :  *
      21                 :  * Contributor(s):
      22                 :  *   Brian Ryner <bryner@brianryner.com>
      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                 : #ifndef nsTreeContentView_h__
      39                 : #define nsTreeContentView_h__
      40                 : 
      41                 : #include "nsFixedSizeAllocator.h"
      42                 : #include "nsTArray.h"
      43                 : #include "nsIDocument.h"
      44                 : #include "nsStubDocumentObserver.h"
      45                 : #include "nsITreeBoxObject.h"
      46                 : #include "nsITreeColumns.h"
      47                 : #include "nsITreeView.h"
      48                 : #include "nsITreeContentView.h"
      49                 : #include "nsITreeSelection.h"
      50                 : 
      51                 : class Row;
      52                 : 
      53                 : nsresult NS_NewTreeContentView(nsITreeView** aResult);
      54                 : 
      55                 : class nsTreeContentView : public nsINativeTreeView,
      56                 :                           public nsITreeContentView,
      57                 :                           public nsStubDocumentObserver
      58                 : {
      59                 :   public:
      60                 :     nsTreeContentView(void);
      61                 : 
      62                 :     ~nsTreeContentView(void);
      63                 : 
      64               0 :     NS_DECL_CYCLE_COLLECTING_ISUPPORTS
      65            1464 :     NS_DECL_CYCLE_COLLECTION_CLASS_AMBIGUOUS(nsTreeContentView,
      66                 :                                              nsINativeTreeView)
      67                 : 
      68                 :     NS_DECL_NSITREEVIEW
      69                 :     // nsINativeTreeView: Untrusted code can use us
      70               0 :     NS_IMETHOD EnsureNative() { return NS_OK; }
      71                 : 
      72                 :     NS_DECL_NSITREECONTENTVIEW
      73                 : 
      74                 :     // nsIDocumentObserver
      75                 :     NS_DECL_NSIMUTATIONOBSERVER_ATTRIBUTECHANGED
      76                 :     NS_DECL_NSIMUTATIONOBSERVER_CONTENTAPPENDED
      77                 :     NS_DECL_NSIMUTATIONOBSERVER_CONTENTINSERTED
      78                 :     NS_DECL_NSIMUTATIONOBSERVER_CONTENTREMOVED
      79                 :     NS_DECL_NSIMUTATIONOBSERVER_NODEWILLBEDESTROYED
      80                 : 
      81                 :     static bool CanTrustTreeSelection(nsISupports* aValue);
      82                 : 
      83                 :   protected:
      84                 :     // Recursive methods which deal with serializing of nested content.
      85                 :     void Serialize(nsIContent* aContent, PRInt32 aParentIndex, PRInt32* aIndex,
      86                 :                    nsTArray<Row*>& aRows);
      87                 : 
      88                 :     void SerializeItem(nsIContent* aContent, PRInt32 aParentIndex,
      89                 :                        PRInt32* aIndex, nsTArray<Row*>& aRows);
      90                 : 
      91                 :     void SerializeSeparator(nsIContent* aContent, PRInt32 aParentIndex,
      92                 :                             PRInt32* aIndex, nsTArray<Row*>& aRows);
      93                 : 
      94                 :     void GetIndexInSubtree(nsIContent* aContainer, nsIContent* aContent, PRInt32* aResult);
      95                 :     
      96                 :     // Helper methods which we use to manage our plain array of rows.
      97                 :     PRInt32 EnsureSubtree(PRInt32 aIndex);
      98                 : 
      99                 :     PRInt32 RemoveSubtree(PRInt32 aIndex);
     100                 : 
     101                 :     PRInt32 InsertRow(PRInt32 aParentIndex, PRInt32 aIndex, nsIContent* aContent);
     102                 : 
     103                 :     void InsertRowFor(nsIContent* aParent, nsIContent* aChild);
     104                 : 
     105                 :     PRInt32 RemoveRow(PRInt32 aIndex);
     106                 : 
     107                 :     void ClearRows();
     108                 :     
     109                 :     void OpenContainer(PRInt32 aIndex);
     110                 : 
     111                 :     void CloseContainer(PRInt32 aIndex);
     112                 : 
     113                 :     PRInt32 FindContent(nsIContent* aContent);
     114                 : 
     115                 :     void UpdateSubtreeSizes(PRInt32 aIndex, PRInt32 aCount);
     116                 : 
     117                 :     void UpdateParentIndexes(PRInt32 aIndex, PRInt32 aSkip, PRInt32 aCount);
     118                 : 
     119                 :     // Content helpers.
     120                 :     nsIContent* GetCell(nsIContent* aContainer, nsITreeColumn* aCol);
     121                 : 
     122                 :   private:
     123                 :     nsCOMPtr<nsITreeBoxObject>          mBoxObject;
     124                 :     nsCOMPtr<nsITreeSelection>          mSelection;
     125                 :     nsCOMPtr<nsIContent>                mRoot;
     126                 :     nsCOMPtr<nsIContent>                mBody;
     127                 :     nsIDocument*                        mDocument;      // WEAK
     128                 :     nsFixedSizeAllocator                mAllocator;
     129                 :     nsTArray<Row*>                      mRows;
     130                 : };
     131                 : 
     132                 : #endif // nsTreeContentView_h__

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