LCOV - app.info - widget/xpwidgets/nsTransferable.h

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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