widget/windows/nsClipboard.h

   1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* This Source Code Form is subject to the terms of the Mozilla Public
   3  * License, v. 2.0. If a copy of the MPL was not distributed with this
   4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   5
   6 #ifndef nsClipboard_h__
   7 #define nsClipboard_h__
   8
   9 #include "nsBaseClipboard.h"
  10 #include "nsIObserver.h"
  11 #include "nsIURI.h"
  12 #include <windows.h>
  13
  14 class nsITransferable;
  15 class nsIClipboardOwner;
  16 class nsIWidget;
  17 class nsIFile;
  18 struct IDataObject;
  19
  20 /**
  21  * Native Win32 Clipboard wrapper
  22  */
  23
  24 class nsClipboard : public nsBaseClipboard,
  25                     public nsIObserver
  26 {
  27   virtual ~nsClipboard();
  28
  29 public:
  30   nsClipboard();
  31
  32   NS_DECL_ISUPPORTS_INHERITED
  33
  34   // nsIObserver
  35   NS_DECL_NSIOBSERVER
  36
  37   // nsIClipboard
  38   NS_IMETHOD HasDataMatchingFlavors(const char** aFlavorList, uint32_t aLength,
  39                                     int32_t aWhichClipboard, bool *_retval);
  40   NS_IMETHOD EmptyClipboard(int32_t aWhichClipboard);
  41
  42   // Internal Native Routines
  43   static nsresult CreateNativeDataObject(nsITransferable * aTransferable,
  44                                          IDataObject ** aDataObj,
  45                                          nsIURI       * uri);
  46   static nsresult SetupNativeDataObject(nsITransferable * aTransferable,
  47                                         IDataObject * aDataObj);
  48   static nsresult GetDataFromDataObject(IDataObject     * aDataObject,
  49                                         UINT              anIndex,
  50                                         nsIWidget       * aWindow,
  51                                         nsITransferable * aTransferable);
  52   static nsresult GetNativeDataOffClipboard(nsIWidget * aWindow, UINT aIndex, UINT aFormat, void ** aData, uint32_t * aLen);
  53   static nsresult GetNativeDataOffClipboard(IDataObject * aDataObject, UINT aIndex, UINT aFormat, const char * aMIMEImageFormat, void ** aData, uint32_t * aLen);
  54   static nsresult GetGlobalData(HGLOBAL aHGBL, void ** aData, uint32_t * aLen);
  55   static UINT     GetFormat(const char* aMimeStr);
  56
  57   static UINT     CF_HTML;
  58
  59 protected:
  60   NS_IMETHOD SetNativeClipboardData ( int32_t aWhichClipboard );
  61   NS_IMETHOD GetNativeClipboardData ( nsITransferable * aTransferable, int32_t aWhichClipboard );
  62
  63   static bool IsInternetShortcut ( const nsAString& inFileName ) ;
  64   static bool FindURLFromLocalFile ( IDataObject* inDataObject, UINT inIndex, void** outData, uint32_t* outDataLen ) ;
  65   static bool FindURLFromNativeURL ( IDataObject* inDataObject, UINT inIndex, void** outData, uint32_t* outDataLen ) ;
  66   static bool FindUnicodeFromPlainText ( IDataObject* inDataObject, UINT inIndex, void** outData, uint32_t* outDataLen ) ;
  67   static bool FindPlatformHTML ( IDataObject* inDataObject, UINT inIndex, void** outData, uint32_t* outDataLen );
  68   static void ResolveShortcut ( nsIFile* inFileName, nsACString& outURL ) ;
  69
  70   nsIWidget         * mWindow;
  71
  72 };
  73
  74 #define SET_FORMATETC(fe, cf, td, asp, li, med)   \
  75    {\
  76    (fe).cfFormat=cf;\
  77    (fe).ptd=td;\
  78    (fe).dwAspect=asp;\
  79    (fe).lindex=li;\
  80    (fe).tymed=med;\
  81    }
  82
  83
  84 #endif // nsClipboard_h__
  85