widget/os2/nsDragService.h

   1 /* This Source Code Form is subject to the terms of the Mozilla Public
   2  * License, v. 2.0. If a copy of the MPL was not distributed with this
   3  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   4
   5 #ifndef nsDragService_h__
   6 #define nsDragService_h__
   7
   8 #include "nsBaseDragService.h"
   9 #include "nsIDragSessionOS2.h"
  10
  11 #define INCL_PM
  12 #include <os2.h>
  13
  14   // forward declarations
  15 class nsIURI;
  16 class nsIURL;
  17 class nsISupportsString;
  18
  19 class nsDragService : public nsBaseDragService, public nsIDragSessionOS2
  20 {
  21 public:
  22   nsDragService();
  23   virtual ~nsDragService();
  24
  25   NS_DECL_ISUPPORTS_INHERITED
  26
  27     // nsIDragService
  28   NS_IMETHOD InvokeDragSession (nsIDOMNode* aDOMNode,
  29                                 nsISupportsArray* aTransferables,
  30                                 nsIScriptableRegion* aRegion,
  31                                 uint32_t aActionType);
  32   NS_IMETHOD StartDragSession();
  33   NS_IMETHOD EndDragSession(bool aDoneDrag);
  34
  35     // nsIDragSession
  36   NS_IMETHOD GetNumDropItems(uint32_t* aNumDropItems);
  37   NS_IMETHOD GetData(nsITransferable* aTransferable, uint32_t aItemIndex);
  38   NS_IMETHOD IsDataFlavorSupported(const char* aDataFlavor, bool* _retval);
  39
  40     // nsIDragSessionOS2
  41   NS_IMETHOD DragOverMsg(PDRAGINFO pdinfo, MRESULT& mr, uint32_t* dragFlags);
  42   NS_IMETHOD GetDragoverResult(MRESULT& mr);
  43   NS_IMETHOD DragLeaveMsg(PDRAGINFO pdinfo, uint32_t* dragFlags);
  44   NS_IMETHOD DropHelpMsg(PDRAGINFO pdinfo, uint32_t* dragFlags);
  45   NS_IMETHOD ExitSession(uint32_t* dragFlags);
  46   NS_IMETHOD DropMsg(PDRAGINFO pdinfo, HWND hwnd, uint32_t* dragFlags);
  47   NS_IMETHOD RenderCompleteMsg(PDRAGTRANSFER pdxfer, USHORT usResult,
  48                                uint32_t* dragFlags);
  49
  50 protected:
  51     // nsIDragSessionOS2
  52   NS_IMETHOD NativeDragEnter(PDRAGINFO pdinfo);
  53   NS_IMETHOD NativeDrop(PDRAGINFO pdinfo, HWND hwnd, bool* rendering);
  54   NS_IMETHOD NativeRenderComplete(PDRAGTRANSFER pdxfer, USHORT usResult);
  55   NS_IMETHOD NativeDataToTransferable( PCSZ pszText, PCSZ pszTitle,
  56                                        bool isUrl);
  57
  58   nsresult SaveAsContents(PCSZ szDest, nsIURL* aURL);
  59   nsresult SaveAsURL(PCSZ szDest, nsIURI* aURI);
  60   nsresult SaveAsText(PCSZ szDest, nsISupportsString* aString);
  61   nsresult GetUrlAndTitle(nsISupports* aGenericData, char** aTargetName);
  62   nsresult GetUniTextTitle(nsISupports* aGenericData, char** aTargetName);
  63
  64   HWND          mDragWnd;
  65   const char*   mMimeType;
  66   nsCOMPtr<nsISupportsArray> mSourceDataItems;
  67   nsCOMPtr<nsISupports>      mSourceData;
  68
  69   friend MRESULT EXPENTRY nsDragWindowProc( HWND, ULONG, MPARAM, MPARAM);
  70 };
  71
  72 #endif // nsDragService_h__