LCOV - code coverage report
Current view: directory - widget/xpwidgets - nsTransferable.h (source / functions) Found Hit Coverage
Test: app.info Lines: 5 0 0.0 %
Date: 2012-06-02 Functions: 4 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) 1998
      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 the GNU General Public License Version 2 or later (the "GPL"), or
      26                 :  * 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 nsTransferable_h__
      39                 : #define nsTransferable_h__
      40                 : 
      41                 : #include "nsIFormatConverter.h"
      42                 : #include "nsITransferable.h"
      43                 : #include "nsCOMPtr.h"
      44                 : #include "nsString.h"
      45                 : #include "nsTArray.h"
      46                 : 
      47                 : class nsString;
      48                 : class nsDataObj;
      49                 : 
      50                 : //
      51                 : // DataStruct
      52                 : //
      53                 : // Holds a flavor (a mime type) that describes the data and the associated data.
      54                 : //
      55                 : struct DataStruct
      56               0 : {
      57               0 :   DataStruct ( const char* aFlavor )
      58               0 :     : mDataLen(0), mFlavor(aFlavor), mCacheFileName(nsnull) { }
      59                 :   ~DataStruct();
      60                 :   
      61               0 :   const nsCString& GetFlavor() const { return mFlavor; }
      62                 :   void SetData( nsISupports* inData, PRUint32 inDataLen );
      63                 :   void GetData( nsISupports** outData, PRUint32 *outDataLen );
      64                 :   nsIFile * GetFileSpec(const char * aFileName);
      65               0 :   bool IsDataAvailable() const { return (mData && mDataLen > 0) || (!mData && mCacheFileName); }
      66                 :   
      67                 : protected:
      68                 : 
      69                 :   enum {
      70                 :     // The size of data over which we write the data to disk rather than
      71                 :     // keep it around in memory.
      72                 :     kLargeDatasetSize = 1000000        // 1 million bytes
      73                 :   };
      74                 :   
      75                 :   nsresult WriteCache(nsISupports* aData, PRUint32 aDataLen );
      76                 :   nsresult ReadCache(nsISupports** aData, PRUint32* aDataLen );
      77                 :   
      78                 :   nsCOMPtr<nsISupports> mData;   // OWNER - some varient of primitive wrapper
      79                 :   PRUint32 mDataLen;
      80                 :   const nsCString mFlavor;
      81                 :   char *   mCacheFileName;
      82                 : 
      83                 : };
      84                 : 
      85                 : /**
      86                 :  * XP Transferable wrapper
      87                 :  */
      88                 : 
      89                 : class nsTransferable : public nsITransferable
      90                 : {
      91                 : public:
      92                 : 
      93                 :   nsTransferable();
      94                 :   virtual ~nsTransferable();
      95                 : 
      96                 :     // nsISupports
      97                 :   NS_DECL_ISUPPORTS
      98                 :   NS_DECL_NSITRANSFERABLE
      99                 : 
     100                 : protected:
     101                 : 
     102                 :     // get flavors w/out converter
     103                 :   nsresult GetTransferDataFlavors(nsISupportsArray** aDataFlavorList);
     104                 :  
     105                 :   nsTArray<DataStruct> mDataArray;
     106                 :   nsCOMPtr<nsIFormatConverter> mFormatConv;
     107                 : 
     108                 : };
     109                 : 
     110                 : #endif // nsTransferable_h__

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