1999-07-18 17:43:45 +02:00
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/*
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* OLE 2 clipboard support
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*
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* Copyright 1999 Noel Borthwick <noel@macadamian.com>
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2000-03-08 19:49:36 +01:00
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* Copyright 2000 Abey George <abey@macadamian.com>
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1999-07-18 17:43:45 +02:00
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*
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* NOTES:
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* This file contains the implementation for the OLE Clipboard and its
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* internal interfaces. The OLE clipboard interacts with an IDataObject
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* interface via the OleSetClipboard, OleGetClipboard and
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* OleIsCurrentClipboard API's. An internal IDataObject delegates
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* to a client supplied IDataObject or the WIN32 clipboard API depending
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* on whether OleSetClipboard has been invoked.
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* Here are some operating scenarios:
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*
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* 1. OleSetClipboard called: In this case the internal IDataObject
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* delegates to the client supplied IDataObject. Additionally OLE takes
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* ownership of the Windows clipboard and any HGLOCBAL IDataObject
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* items are placed on the Windows clipboard. This allows non OLE aware
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* applications to access these. A local WinProc fields WM_RENDERFORMAT
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* and WM_RENDERALLFORMATS messages in this case.
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*
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* 2. OleGetClipboard called without previous OleSetClipboard. Here the internal
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* IDataObject functionality wraps around the WIN32 clipboard API.
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*
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* 3. OleGetClipboard called after previous OleSetClipboard. Here the internal
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* IDataObject delegates to the source IDataObjects functionality directly,
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* thereby bypassing the Windows clipboard.
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*
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* Implementation references : Inside OLE 2'nd edition by Kraig Brockschmidt
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*
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* TODO:
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* - Support for pasting between different processes. OLE clipboard support
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* currently works only for in process copy and paste. Since we internally
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* store a pointer to the source's IDataObject and delegate to that, this
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* will fail if the IDataObject client belongs to a different process.
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* - IDataObject::GetDataHere is not implemented
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* - OleFlushClipboard needs to additionally handle TYMED_IStorage media
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* by copying the storage into global memory. Subsequently the default
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* data object exposed through OleGetClipboard must convert this TYMED_HGLOBAL
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* back to TYMED_IStorage.
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* - OLE1 compatibility formats to be synthesized from OLE2 formats and put on
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* clipboard in OleSetClipboard.
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*
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*/
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#include <assert.h>
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2000-03-24 22:19:02 +01:00
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2000-02-10 20:03:02 +01:00
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#include "windef.h"
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#include "wingdi.h"
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1999-07-18 17:43:45 +02:00
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#include "winuser.h"
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1999-08-18 20:35:57 +02:00
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#include "winbase.h"
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1999-07-18 17:43:45 +02:00
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#include "winerror.h"
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#include "ole2.h"
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#include "debugtools.h"
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2000-03-08 19:49:36 +01:00
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#include "olestd.h"
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1999-07-18 17:43:45 +02:00
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2000-03-24 22:19:02 +01:00
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#include "storage32.h"
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1999-07-18 17:43:45 +02:00
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#define HANDLE_ERROR(err) { hr = err; TRACE("(HRESULT=%lx)\n", (HRESULT)err); goto CLEANUP; }
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/* For CoGetMalloc (MEMCTX_TASK is currently ignored) */
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#ifndef MEMCTX_TASK
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#define MEMCTX_TASK -1
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#endif
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DEFAULT_DEBUG_CHANNEL(ole)
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/****************************************************************************
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* OLEClipbrd
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* DO NOT add any members before the VTables declaration!
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*/
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struct OLEClipbrd
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{
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/*
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* List all interface VTables here
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*/
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ICOM_VTABLE(IDataObject)* lpvtbl1; /* IDataObject VTable */
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/*
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* The hidden OLE clipboard window. This window is used as the bridge between the
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* the OLE and windows clipboard API. (Windows creates one such window per process)
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*/
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HWND hWndClipboard;
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/*
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* Pointer to the source data object (via OleSetClipboard)
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*/
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IDataObject* pIDataObjectSrc;
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/*
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* The registered DataObject clipboard format
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*/
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UINT cfDataObj;
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/*
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* The handle to our ourself
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*/
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UINT hSelf;
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/*
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* Reference count of this object
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*/
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ULONG ref;
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};
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typedef struct OLEClipbrd OLEClipbrd;
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/****************************************************************************
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* IEnumFORMATETC implementation
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* DO NOT add any members before the VTables declaration!
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*/
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typedef struct
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{
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/* IEnumFORMATETC VTable */
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1999-10-31 02:59:23 +01:00
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ICOM_VFIELD(IEnumFORMATETC);
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1999-07-18 17:43:45 +02:00
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/* IEnumFORMATETC fields */
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UINT posFmt; /* current enumerator position */
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UINT countFmt; /* number of EnumFORMATETC's in array */
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LPFORMATETC pFmt; /* array of EnumFORMATETC's */
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/*
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* Reference count of this object
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*/
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DWORD ref;
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/*
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* IUnknown implementation of the parent data object.
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*/
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IUnknown* pUnkDataObj;
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} IEnumFORMATETCImpl;
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2000-03-08 19:49:36 +01:00
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typedef struct PresentationDataHeader
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{
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BYTE unknown1[28];
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DWORD dwObjectExtentX;
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DWORD dwObjectExtentY;
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DWORD dwSize;
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} PresentationDataHeader;
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1999-07-18 17:43:45 +02:00
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/*
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* The one and only OLEClipbrd object which is created by OLEClipbrd_Initialize()
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*/
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static HGLOBAL hTheOleClipboard = 0;
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static OLEClipbrd* theOleClipboard = NULL;
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/*
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* Prototypes for the methods of the OLEClipboard class.
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*/
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extern void OLEClipbrd_Initialize();
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extern void OLEClipbrd_UnInitialize();
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static OLEClipbrd* OLEClipbrd_Construct();
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static void OLEClipbrd_Destroy(OLEClipbrd* ptrToDestroy);
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static HWND OLEClipbrd_CreateWindow();
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static void OLEClipbrd_DestroyWindow(HWND hwnd);
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LRESULT CALLBACK OLEClipbrd_WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam);
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1999-10-24 22:22:24 +02:00
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static HRESULT OLEClipbrd_RenderFormat( IDataObject *pIDataObject, LPFORMATETC pFormatetc );
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1999-07-18 17:43:45 +02:00
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static HGLOBAL OLEClipbrd_GlobalDupMem( HGLOBAL hGlobalSrc );
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/*
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* Prototypes for the methods of the OLEClipboard class
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* that implement IDataObject methods.
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*/
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static HRESULT WINAPI OLEClipbrd_IDataObject_QueryInterface(
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IDataObject* iface,
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REFIID riid,
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void** ppvObject);
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static ULONG WINAPI OLEClipbrd_IDataObject_AddRef(
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IDataObject* iface);
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static ULONG WINAPI OLEClipbrd_IDataObject_Release(
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IDataObject* iface);
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static HRESULT WINAPI OLEClipbrd_IDataObject_GetData(
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IDataObject* iface,
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LPFORMATETC pformatetcIn,
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STGMEDIUM* pmedium);
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static HRESULT WINAPI OLEClipbrd_IDataObject_GetDataHere(
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IDataObject* iface,
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LPFORMATETC pformatetc,
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STGMEDIUM* pmedium);
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static HRESULT WINAPI OLEClipbrd_IDataObject_QueryGetData(
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IDataObject* iface,
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LPFORMATETC pformatetc);
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static HRESULT WINAPI OLEClipbrd_IDataObject_GetCanonicalFormatEtc(
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IDataObject* iface,
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LPFORMATETC pformatectIn,
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LPFORMATETC pformatetcOut);
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static HRESULT WINAPI OLEClipbrd_IDataObject_SetData(
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IDataObject* iface,
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LPFORMATETC pformatetc,
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STGMEDIUM* pmedium,
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BOOL fRelease);
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static HRESULT WINAPI OLEClipbrd_IDataObject_EnumFormatEtc(
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IDataObject* iface,
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DWORD dwDirection,
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IEnumFORMATETC** ppenumFormatEtc);
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static HRESULT WINAPI OLEClipbrd_IDataObject_DAdvise(
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IDataObject* iface,
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FORMATETC* pformatetc,
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DWORD advf,
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IAdviseSink* pAdvSink,
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DWORD* pdwConnection);
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static HRESULT WINAPI OLEClipbrd_IDataObject_DUnadvise(
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IDataObject* iface,
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DWORD dwConnection);
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static HRESULT WINAPI OLEClipbrd_IDataObject_EnumDAdvise(
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IDataObject* iface,
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IEnumSTATDATA** ppenumAdvise);
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/*
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* Prototypes for the IEnumFORMATETC methods.
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*/
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static LPENUMFORMATETC OLEClipbrd_IEnumFORMATETC_Construct(UINT cfmt, const FORMATETC afmt[],
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LPUNKNOWN pUnkDataObj);
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static HRESULT WINAPI OLEClipbrd_IEnumFORMATETC_QueryInterface(LPENUMFORMATETC iface, REFIID riid,
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LPVOID* ppvObj);
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static ULONG WINAPI OLEClipbrd_IEnumFORMATETC_AddRef(LPENUMFORMATETC iface);
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static ULONG WINAPI OLEClipbrd_IEnumFORMATETC_Release(LPENUMFORMATETC iface);
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static HRESULT WINAPI OLEClipbrd_IEnumFORMATETC_Next(LPENUMFORMATETC iface, ULONG celt,
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FORMATETC* rgelt, ULONG* pceltFethed);
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static HRESULT WINAPI OLEClipbrd_IEnumFORMATETC_Skip(LPENUMFORMATETC iface, ULONG celt);
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static HRESULT WINAPI OLEClipbrd_IEnumFORMATETC_Reset(LPENUMFORMATETC iface);
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static HRESULT WINAPI OLEClipbrd_IEnumFORMATETC_Clone(LPENUMFORMATETC iface, LPENUMFORMATETC* ppenum);
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/*
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* Virtual function table for the OLEClipbrd's exposed IDataObject interface
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*/
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static ICOM_VTABLE(IDataObject) OLEClipbrd_IDataObject_VTable =
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{
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ICOM_MSVTABLE_COMPAT_DummyRTTIVALUE
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OLEClipbrd_IDataObject_QueryInterface,
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OLEClipbrd_IDataObject_AddRef,
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OLEClipbrd_IDataObject_Release,
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OLEClipbrd_IDataObject_GetData,
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OLEClipbrd_IDataObject_GetDataHere,
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OLEClipbrd_IDataObject_QueryGetData,
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OLEClipbrd_IDataObject_GetCanonicalFormatEtc,
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OLEClipbrd_IDataObject_SetData,
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OLEClipbrd_IDataObject_EnumFormatEtc,
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OLEClipbrd_IDataObject_DAdvise,
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OLEClipbrd_IDataObject_DUnadvise,
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OLEClipbrd_IDataObject_EnumDAdvise
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};
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/*
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* Virtual function table for IEnumFORMATETC interface
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*/
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static struct ICOM_VTABLE(IEnumFORMATETC) efvt =
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{
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ICOM_MSVTABLE_COMPAT_DummyRTTIVALUE
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OLEClipbrd_IEnumFORMATETC_QueryInterface,
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OLEClipbrd_IEnumFORMATETC_AddRef,
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OLEClipbrd_IEnumFORMATETC_Release,
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OLEClipbrd_IEnumFORMATETC_Next,
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OLEClipbrd_IEnumFORMATETC_Skip,
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OLEClipbrd_IEnumFORMATETC_Reset,
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OLEClipbrd_IEnumFORMATETC_Clone
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};
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/*
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* Name of our registered OLE clipboard window class
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*/
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CHAR OLEClipbrd_WNDCLASS[] = "CLIPBRDWNDCLASS";
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/*
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* If we need to store state info we can store it here.
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* For now we dont need this functionality.
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*
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typedef struct tagClipboardWindowInfo
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{
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} ClipboardWindowInfo;
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*/
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/*---------------------------------------------------------------------*
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* Win32 OLE clipboard API
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*---------------------------------------------------------------------*/
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/***********************************************************************
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* OleSetClipboard [OLE32.127]
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* Places a pointer to the specified data object onto the clipboard,
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* making the data object accessible to the OleGetClipboard function.
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*
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* RETURNS:
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*
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* S_OK IDataObject pointer placed on the clipboard
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* CLIPBRD_E_CANT_OPEN OpenClipboard failed
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* CLIPBRD_E_CANT_EMPTY EmptyClipboard failed
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* CLIPBRD_E_CANT_CLOSE CloseClipboard failed
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* CLIPBRD_E_CANT_SET SetClipboard failed
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*/
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HRESULT WINAPI OleSetClipboard(IDataObject* pDataObj)
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{
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HRESULT hr = S_OK;
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IEnumFORMATETC* penumFormatetc = NULL;
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FORMATETC rgelt;
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BOOL bClipboardOpen = FALSE;
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/*
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HGLOBAL hDataObject = 0;
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OLEClipbrd **ppDataObject;
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*/
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TRACE("(%p)\n", pDataObj);
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/*
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* Make sure we have a clipboard object
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*/
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OLEClipbrd_Initialize();
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/*
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* If the Ole clipboard window hasn't been created yet, create it now.
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*/
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if ( !theOleClipboard->hWndClipboard )
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theOleClipboard->hWndClipboard = OLEClipbrd_CreateWindow();
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if ( !theOleClipboard->hWndClipboard ) /* sanity check */
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HANDLE_ERROR( E_FAIL );
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/*
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* Open the Windows clipboard, associating it with our hidden window
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*/
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if ( !(bClipboardOpen = OpenClipboard(theOleClipboard->hWndClipboard)) )
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HANDLE_ERROR( CLIPBRD_E_CANT_OPEN );
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/*
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* Empty the current clipboard and make our window the clipboard owner
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* NOTE: This will trigger a WM_DESTROYCLIPBOARD message
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*/
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if ( !EmptyClipboard() )
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HANDLE_ERROR( CLIPBRD_E_CANT_EMPTY );
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/*
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* If we are already holding on to an IDataObject first release that.
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*/
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if ( theOleClipboard->pIDataObjectSrc )
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{
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IDataObject_Release(theOleClipboard->pIDataObjectSrc);
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theOleClipboard->pIDataObjectSrc = NULL;
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}
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/*
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* AddRef the data object passed in and save its pointer.
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* A NULL value indicates that the clipboard should be emptied.
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*/
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theOleClipboard->pIDataObjectSrc = pDataObj;
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if ( pDataObj )
|
|
|
|
{
|
|
|
|
IDataObject_AddRef(theOleClipboard->pIDataObjectSrc);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Enumerate all HGLOBAL formats supported by the source and make
|
|
|
|
* those formats available using delayed rendering using SetClipboardData.
|
|
|
|
* Only global memory based data items may be made available to non-OLE
|
|
|
|
* applications via the standard Windows clipboard API. Data based on other
|
|
|
|
* mediums(non TYMED_HGLOBAL) can only be accessed via the Ole Clipboard API.
|
|
|
|
*
|
|
|
|
* TODO: Do we need to additionally handle TYMED_IStorage media by copying
|
|
|
|
* the storage into global memory?
|
|
|
|
*/
|
|
|
|
if ( pDataObj )
|
|
|
|
{
|
|
|
|
if ( FAILED(hr = IDataObject_EnumFormatEtc( pDataObj,
|
|
|
|
DATADIR_GET,
|
|
|
|
&penumFormatetc )))
|
|
|
|
{
|
|
|
|
HANDLE_ERROR( hr );
|
|
|
|
}
|
|
|
|
|
|
|
|
while ( S_OK == IEnumFORMATETC_Next(penumFormatetc, 1, &rgelt, NULL) )
|
|
|
|
{
|
|
|
|
if ( rgelt.tymed == TYMED_HGLOBAL )
|
|
|
|
{
|
|
|
|
CHAR szFmtName[80];
|
|
|
|
TRACE("(cfFormat=%d:%s)\n", rgelt.cfFormat,
|
|
|
|
GetClipboardFormatNameA(rgelt.cfFormat, szFmtName, sizeof(szFmtName)-1)
|
|
|
|
? szFmtName : "");
|
|
|
|
|
|
|
|
SetClipboardData( rgelt.cfFormat, (HANDLE)NULL);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
IEnumFORMATETC_Release(penumFormatetc);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Windows additionally creates a new "DataObject" clipboard format
|
|
|
|
* and stores in on the clipboard. We could possibly store a pointer
|
|
|
|
* to our internal IDataObject interface on the clipboard. I'm not
|
|
|
|
* sure what the use of this is though.
|
|
|
|
* Enable the code below for this functionality.
|
|
|
|
*/
|
|
|
|
/*
|
|
|
|
theOleClipboard->cfDataObj = RegisterClipboardFormatA("DataObject");
|
|
|
|
hDataObject = GlobalAlloc( GMEM_DDESHARE|GMEM_MOVEABLE|GMEM_ZEROINIT,
|
|
|
|
sizeof(OLEClipbrd *));
|
|
|
|
if (hDataObject==0)
|
|
|
|
HANDLE_ERROR( E_OUTOFMEMORY );
|
|
|
|
|
|
|
|
ppDataObject = (OLEClipbrd**)GlobalLock(hDataObject);
|
|
|
|
*ppDataObject = theOleClipboard;
|
|
|
|
GlobalUnlock(hDataObject);
|
|
|
|
|
|
|
|
if ( !SetClipboardData( theOleClipboard->cfDataObj, hDataObject ) )
|
|
|
|
HANDLE_ERROR( CLIPBRD_E_CANT_SET );
|
|
|
|
*/
|
|
|
|
|
|
|
|
hr = S_OK;
|
|
|
|
|
|
|
|
CLEANUP:
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Close Windows clipboard (It remains associated with our window)
|
|
|
|
*/
|
|
|
|
if ( bClipboardOpen && !CloseClipboard() )
|
|
|
|
hr = CLIPBRD_E_CANT_CLOSE;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Release the source IDataObject if something failed
|
|
|
|
*/
|
|
|
|
if ( FAILED(hr) )
|
|
|
|
{
|
|
|
|
if (theOleClipboard->pIDataObjectSrc)
|
|
|
|
{
|
|
|
|
IDataObject_Release(theOleClipboard->pIDataObjectSrc);
|
|
|
|
theOleClipboard->pIDataObjectSrc = NULL;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return hr;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/***********************************************************************
|
|
|
|
* OleGetClipboard32 [OLE32.105]
|
|
|
|
* Returns a pointer to our internal IDataObject which represents the conceptual
|
|
|
|
* state of the Windows clipboard. If the current clipboard already contains
|
|
|
|
* an IDataObject, our internal IDataObject will delegate to this object.
|
|
|
|
*/
|
|
|
|
HRESULT WINAPI OleGetClipboard(IDataObject** ppDataObj)
|
|
|
|
{
|
|
|
|
HRESULT hr = S_OK;
|
|
|
|
TRACE("()\n");
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Make sure we have a clipboard object
|
|
|
|
*/
|
|
|
|
OLEClipbrd_Initialize();
|
|
|
|
|
|
|
|
if (!theOleClipboard)
|
|
|
|
return E_OUTOFMEMORY;
|
|
|
|
|
|
|
|
/* Return a reference counted IDataObject */
|
|
|
|
hr = IDataObject_QueryInterface( (IDataObject*)&(theOleClipboard->lpvtbl1),
|
|
|
|
&IID_IDataObject, (void**)ppDataObj);
|
|
|
|
return hr;
|
|
|
|
}
|
|
|
|
|
|
|
|
/***********************************************************************
|
|
|
|
* OleFlushClipboard [OLE2.76]
|
|
|
|
*/
|
|
|
|
|
|
|
|
HRESULT WINAPI OleFlushClipboard16(void)
|
|
|
|
{
|
|
|
|
return OleFlushClipboard();
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/******************************************************************************
|
|
|
|
* OleFlushClipboard [OLE32.103]
|
|
|
|
* Renders the data from the source IDataObject into the windows clipboard
|
|
|
|
*
|
|
|
|
* TODO: OleFlushClipboard needs to additionally handle TYMED_IStorage media
|
|
|
|
* by copying the storage into global memory. Subsequently the default
|
|
|
|
* data object exposed through OleGetClipboard must convert this TYMED_HGLOBAL
|
|
|
|
* back to TYMED_IStorage.
|
|
|
|
*/
|
|
|
|
HRESULT WINAPI OleFlushClipboard()
|
|
|
|
{
|
|
|
|
IEnumFORMATETC* penumFormatetc = NULL;
|
|
|
|
FORMATETC rgelt;
|
|
|
|
HRESULT hr = S_OK;
|
|
|
|
BOOL bClipboardOpen = FALSE;
|
1999-10-24 22:22:24 +02:00
|
|
|
IDataObject* pIDataObjectSrc = NULL;
|
1999-07-18 17:43:45 +02:00
|
|
|
|
|
|
|
TRACE("()\n");
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Make sure we have a clipboard object
|
|
|
|
*/
|
|
|
|
OLEClipbrd_Initialize();
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Already flushed or no source DataObject? Nothing to do.
|
|
|
|
*/
|
|
|
|
if (!theOleClipboard->pIDataObjectSrc)
|
|
|
|
return S_OK;
|
|
|
|
|
1999-10-24 22:22:24 +02:00
|
|
|
/*
|
|
|
|
* Addref and save the source data object we are holding on to temporarily,
|
|
|
|
* since it will be released when we empty the clipboard.
|
|
|
|
*/
|
|
|
|
pIDataObjectSrc = theOleClipboard->pIDataObjectSrc;
|
|
|
|
IDataObject_AddRef(pIDataObjectSrc);
|
|
|
|
|
1999-07-18 17:43:45 +02:00
|
|
|
/*
|
|
|
|
* Open the Windows clipboard
|
|
|
|
*/
|
|
|
|
if ( !(bClipboardOpen = OpenClipboard(theOleClipboard->hWndClipboard)) )
|
|
|
|
HANDLE_ERROR( CLIPBRD_E_CANT_OPEN );
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Empty the current clipboard
|
|
|
|
*/
|
|
|
|
if ( !EmptyClipboard() )
|
|
|
|
HANDLE_ERROR( CLIPBRD_E_CANT_EMPTY );
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Render all HGLOBAL formats supported by the source into
|
|
|
|
* the windows clipboard.
|
|
|
|
*/
|
1999-10-24 22:22:24 +02:00
|
|
|
if ( FAILED( hr = IDataObject_EnumFormatEtc( pIDataObjectSrc,
|
1999-07-18 17:43:45 +02:00
|
|
|
DATADIR_GET,
|
|
|
|
&penumFormatetc) ))
|
|
|
|
{
|
|
|
|
HANDLE_ERROR( hr );
|
|
|
|
}
|
|
|
|
|
|
|
|
while ( S_OK == IEnumFORMATETC_Next(penumFormatetc, 1, &rgelt, NULL) )
|
|
|
|
{
|
|
|
|
if ( rgelt.tymed == TYMED_HGLOBAL )
|
|
|
|
{
|
|
|
|
CHAR szFmtName[80];
|
|
|
|
TRACE("(cfFormat=%d:%s)\n", rgelt.cfFormat,
|
|
|
|
GetClipboardFormatNameA(rgelt.cfFormat, szFmtName, sizeof(szFmtName)-1)
|
|
|
|
? szFmtName : "");
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Render the clipboard data
|
|
|
|
*/
|
1999-10-24 22:22:24 +02:00
|
|
|
if ( FAILED(OLEClipbrd_RenderFormat( pIDataObjectSrc, &rgelt )) )
|
1999-07-18 17:43:45 +02:00
|
|
|
continue;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
IEnumFORMATETC_Release(penumFormatetc);
|
|
|
|
|
|
|
|
/*
|
1999-10-24 22:22:24 +02:00
|
|
|
* Release the source data object we are holding on to
|
1999-07-18 17:43:45 +02:00
|
|
|
*/
|
1999-10-24 22:22:24 +02:00
|
|
|
IDataObject_Release(pIDataObjectSrc);
|
1999-07-18 17:43:45 +02:00
|
|
|
|
|
|
|
CLEANUP:
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Close Windows clipboard (It remains associated with our window)
|
|
|
|
*/
|
|
|
|
if ( bClipboardOpen && !CloseClipboard() )
|
|
|
|
hr = CLIPBRD_E_CANT_CLOSE;
|
|
|
|
|
|
|
|
return hr;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/***********************************************************************
|
|
|
|
* OleIsCurrentClipboard32 [OLE32.110]
|
|
|
|
*/
|
|
|
|
HRESULT WINAPI OleIsCurrentClipboard ( IDataObject *pDataObject)
|
|
|
|
{
|
|
|
|
TRACE("()\n");
|
|
|
|
/*
|
|
|
|
* Make sure we have a clipboard object
|
|
|
|
*/
|
|
|
|
OLEClipbrd_Initialize();
|
|
|
|
|
|
|
|
if (!theOleClipboard)
|
|
|
|
return E_OUTOFMEMORY;
|
|
|
|
|
|
|
|
return (pDataObject == theOleClipboard->pIDataObjectSrc) ? S_OK : S_FALSE;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/*---------------------------------------------------------------------*
|
|
|
|
* Internal implementation methods for the OLE clipboard
|
|
|
|
*---------------------------------------------------------------------*/
|
|
|
|
|
|
|
|
/***********************************************************************
|
|
|
|
* OLEClipbrd_Initialize()
|
|
|
|
* Initializes the OLE clipboard.
|
|
|
|
*/
|
|
|
|
void OLEClipbrd_Initialize()
|
|
|
|
{
|
|
|
|
/*
|
|
|
|
* Create the clipboard if necesary
|
|
|
|
*/
|
|
|
|
if ( !theOleClipboard )
|
|
|
|
{
|
|
|
|
TRACE("()\n");
|
|
|
|
theOleClipboard = OLEClipbrd_Construct();
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/***********************************************************************
|
|
|
|
* OLEClipbrd_UnInitialize()
|
|
|
|
* Un-Initializes the OLE clipboard
|
|
|
|
*/
|
|
|
|
void OLEClipbrd_UnInitialize()
|
|
|
|
{
|
|
|
|
TRACE("()\n");
|
|
|
|
/*
|
|
|
|
* Destroy the clipboard if no one holds a reference to us.
|
|
|
|
* Note that the clipboard was created with a reference count of 1.
|
|
|
|
*/
|
|
|
|
if ( theOleClipboard && (theOleClipboard->ref <= 1) )
|
|
|
|
{
|
|
|
|
OLEClipbrd_Destroy( theOleClipboard );
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
WARN( "() : OLEClipbrd_UnInitialize called while client holds an IDataObject reference!\n");
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/*********************************************************
|
|
|
|
* Construct the OLEClipbrd class.
|
|
|
|
*/
|
|
|
|
static OLEClipbrd* OLEClipbrd_Construct()
|
|
|
|
{
|
|
|
|
OLEClipbrd* newObject = NULL;
|
|
|
|
HGLOBAL hNewObject = 0;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Allocate space for the object. We use GlobalAlloc since we need
|
|
|
|
* an HGLOBAL to expose our DataObject as a registered clipboard type.
|
|
|
|
*/
|
|
|
|
hNewObject = GlobalAlloc( GMEM_DDESHARE|GMEM_MOVEABLE|GMEM_ZEROINIT,
|
|
|
|
sizeof(OLEClipbrd));
|
|
|
|
if (hNewObject==0)
|
|
|
|
return NULL;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Lock the handle for the entire lifetime of the clipboard.
|
|
|
|
*/
|
|
|
|
newObject = GlobalLock(hNewObject);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Initialize the virtual function table.
|
|
|
|
*/
|
|
|
|
newObject->lpvtbl1 = &OLEClipbrd_IDataObject_VTable;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Start with one reference count. The caller of this function
|
|
|
|
* must release the interface pointer when it is done.
|
|
|
|
*/
|
|
|
|
newObject->ref = 1;
|
|
|
|
|
|
|
|
newObject->hSelf = hNewObject;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* The Ole clipboard is a singleton - save the global handle and pointer
|
|
|
|
*/
|
|
|
|
theOleClipboard = newObject;
|
|
|
|
hTheOleClipboard = hNewObject;
|
|
|
|
|
|
|
|
return theOleClipboard;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void OLEClipbrd_Destroy(OLEClipbrd* ptrToDestroy)
|
|
|
|
{
|
|
|
|
TRACE("()\n");
|
|
|
|
|
|
|
|
if ( !ptrToDestroy )
|
|
|
|
return;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Destroy the Ole clipboard window
|
|
|
|
*/
|
|
|
|
if ( ptrToDestroy->hWndClipboard )
|
|
|
|
OLEClipbrd_DestroyWindow(ptrToDestroy->hWndClipboard);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Free the actual OLE Clipboard structure.
|
|
|
|
*/
|
|
|
|
TRACE("() - Destroying clipboard data object.\n");
|
|
|
|
GlobalUnlock(ptrToDestroy->hSelf);
|
|
|
|
GlobalFree(ptrToDestroy->hSelf);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* The Ole clipboard is a singleton (ptrToDestroy == theOleClipboard)
|
|
|
|
*/
|
|
|
|
theOleClipboard = NULL;
|
|
|
|
hTheOleClipboard = 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/***********************************************************************
|
|
|
|
* OLEClipbrd_CreateWindow()
|
|
|
|
* Create the clipboard window
|
|
|
|
*/
|
|
|
|
static HWND OLEClipbrd_CreateWindow()
|
|
|
|
{
|
|
|
|
HWND hwnd = 0;
|
|
|
|
WNDCLASSEXA wcex;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Register the clipboard window class if necessary
|
|
|
|
*/
|
|
|
|
ZeroMemory( &wcex, sizeof(WNDCLASSEXA));
|
|
|
|
|
|
|
|
wcex.cbSize = sizeof(WNDCLASSEXA);
|
|
|
|
/* Windows creates this class with a style mask of 0
|
|
|
|
* We dont bother doing this since the FindClassByAtom code
|
|
|
|
* would have to be changed to deal with this idiosyncracy. */
|
|
|
|
wcex.style = CS_GLOBALCLASS;
|
|
|
|
wcex.lpfnWndProc = (WNDPROC)OLEClipbrd_WndProc;
|
|
|
|
wcex.hInstance = 0;
|
|
|
|
wcex.lpszClassName = OLEClipbrd_WNDCLASS;
|
|
|
|
|
|
|
|
RegisterClassExA(&wcex);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Create a hidden window to receive OLE clipboard messages
|
|
|
|
*/
|
|
|
|
|
|
|
|
/*
|
|
|
|
* If we need to store state info we can store it here.
|
|
|
|
* For now we dont need this functionality.
|
|
|
|
* ClipboardWindowInfo clipboardInfo;
|
|
|
|
* ZeroMemory( &trackerInfo, sizeof(ClipboardWindowInfo));
|
|
|
|
*/
|
|
|
|
|
|
|
|
hwnd = CreateWindowA(OLEClipbrd_WNDCLASS,
|
|
|
|
"ClipboardWindow",
|
|
|
|
WS_POPUP | WS_CLIPSIBLINGS | WS_OVERLAPPED,
|
|
|
|
CW_USEDEFAULT, CW_USEDEFAULT,
|
|
|
|
CW_USEDEFAULT, CW_USEDEFAULT,
|
|
|
|
0,
|
|
|
|
0,
|
|
|
|
0,
|
|
|
|
0 /*(LPVOID)&clipboardInfo */);
|
|
|
|
|
|
|
|
return hwnd;
|
|
|
|
}
|
|
|
|
|
|
|
|
/***********************************************************************
|
|
|
|
* OLEClipbrd_DestroyWindow(HWND)
|
|
|
|
* Destroy the clipboard window and unregister its class
|
|
|
|
*/
|
|
|
|
static void OLEClipbrd_DestroyWindow(HWND hwnd)
|
|
|
|
{
|
|
|
|
/*
|
|
|
|
* Destroy clipboard window and unregister its WNDCLASS
|
|
|
|
*/
|
|
|
|
DestroyWindow(hwnd);
|
|
|
|
UnregisterClassA( OLEClipbrd_WNDCLASS, 0 );
|
|
|
|
}
|
|
|
|
|
|
|
|
/***********************************************************************
|
|
|
|
* OLEClipbrd_WndProc(HWND, unsigned, WORD, LONG)
|
|
|
|
* Processes messages sent to the OLE clipboard window.
|
|
|
|
* Note that we will intercept messages in our WndProc only when data
|
|
|
|
* has been placed in the clipboard via OleSetClipboard().
|
|
|
|
* i.e. Only when OLE owns the windows clipboard.
|
|
|
|
*/
|
|
|
|
LRESULT CALLBACK OLEClipbrd_WndProc
|
|
|
|
(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
|
|
|
|
{
|
|
|
|
switch (message)
|
|
|
|
{
|
|
|
|
/*
|
|
|
|
* WM_RENDERFORMAT
|
|
|
|
* We receive this message to allow us to handle delayed rendering of
|
|
|
|
* a specific clipboard format when an application requests data in
|
|
|
|
* that format by calling GetClipboardData.
|
|
|
|
* (Recall that in OleSetClipboard, we used SetClipboardData to
|
|
|
|
* make all HGLOBAL formats supported by the source IDataObject
|
|
|
|
* available using delayed rendering)
|
|
|
|
* On receiving this mesage we must actually render the data in the
|
|
|
|
* specified format and place it on the clipboard by calling the
|
|
|
|
* SetClipboardData function.
|
|
|
|
*/
|
|
|
|
case WM_RENDERFORMAT:
|
|
|
|
{
|
|
|
|
FORMATETC rgelt;
|
|
|
|
|
|
|
|
ZeroMemory( &rgelt, sizeof(FORMATETC));
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Initialize FORMATETC to a Windows clipboard friendly format
|
|
|
|
*/
|
|
|
|
rgelt.cfFormat = (UINT) wParam;
|
|
|
|
rgelt.dwAspect = DVASPECT_CONTENT;
|
|
|
|
rgelt.lindex = -1;
|
|
|
|
rgelt.tymed = TYMED_HGLOBAL;
|
|
|
|
|
|
|
|
TRACE("(): WM_RENDERFORMAT(cfFormat=%d)\n", rgelt.cfFormat);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Render the clipboard data.
|
|
|
|
* (We must have a source data object or we wouldn't be in this WndProc)
|
|
|
|
*/
|
1999-10-24 22:22:24 +02:00
|
|
|
OLEClipbrd_RenderFormat( (IDataObject*)&(theOleClipboard->lpvtbl1), &rgelt );
|
1999-07-18 17:43:45 +02:00
|
|
|
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* WM_RENDERALLFORMATS
|
|
|
|
* Sent before the clipboard owner window is destroyed.
|
|
|
|
* We should receive this message only when OleUninitialize is called
|
|
|
|
* while we have an IDataObject in the clipboard.
|
|
|
|
* For the content of the clipboard to remain available to other
|
|
|
|
* applications, we must render data in all the formats the source IDataObject
|
|
|
|
* is capable of generating, and place the data on the clipboard by calling
|
|
|
|
* SetClipboardData.
|
|
|
|
*/
|
|
|
|
case WM_RENDERALLFORMATS:
|
|
|
|
{
|
|
|
|
IEnumFORMATETC* penumFormatetc = NULL;
|
|
|
|
FORMATETC rgelt;
|
|
|
|
|
|
|
|
TRACE("(): WM_RENDERALLFORMATS\n");
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Render all HGLOBAL formats supported by the source into
|
|
|
|
* the windows clipboard.
|
|
|
|
*/
|
|
|
|
if ( FAILED( IDataObject_EnumFormatEtc( (IDataObject*)&(theOleClipboard->lpvtbl1),
|
|
|
|
DATADIR_GET, &penumFormatetc) ) )
|
|
|
|
{
|
|
|
|
WARN("(): WM_RENDERALLFORMATS failed to retrieve EnumFormatEtc!\n");
|
|
|
|
return 0;
|
|
|
|
}
|
1999-09-03 17:17:57 +02:00
|
|
|
|
1999-07-18 17:43:45 +02:00
|
|
|
while ( S_OK == IEnumFORMATETC_Next(penumFormatetc, 1, &rgelt, NULL) )
|
|
|
|
{
|
|
|
|
if ( rgelt.tymed == TYMED_HGLOBAL )
|
|
|
|
{
|
|
|
|
/*
|
|
|
|
* Render the clipboard data.
|
|
|
|
*/
|
1999-10-24 22:22:24 +02:00
|
|
|
if ( FAILED(OLEClipbrd_RenderFormat( (IDataObject*)&(theOleClipboard->lpvtbl1), &rgelt )) )
|
1999-07-18 17:43:45 +02:00
|
|
|
continue;
|
|
|
|
|
|
|
|
TRACE("(): WM_RENDERALLFORMATS(cfFormat=%d)\n", rgelt.cfFormat);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
IEnumFORMATETC_Release(penumFormatetc);
|
|
|
|
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* WM_DESTROYCLIPBOARD
|
|
|
|
* This is sent by EmptyClipboard before the clipboard is emptied.
|
|
|
|
* We should release any IDataObject we are holding onto when we receive
|
|
|
|
* this message, since it indicates that the OLE clipboard should be empty
|
|
|
|
* from this point on.
|
|
|
|
*/
|
|
|
|
case WM_DESTROYCLIPBOARD:
|
|
|
|
{
|
|
|
|
TRACE("(): WM_DESTROYCLIPBOARD\n");
|
|
|
|
/*
|
|
|
|
* Release the data object we are holding on to
|
|
|
|
*/
|
|
|
|
if ( theOleClipboard->pIDataObjectSrc )
|
|
|
|
{
|
|
|
|
IDataObject_Release(theOleClipboard->pIDataObjectSrc);
|
|
|
|
theOleClipboard->pIDataObjectSrc = NULL;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
case WM_ASKCBFORMATNAME:
|
|
|
|
case WM_CHANGECBCHAIN:
|
|
|
|
case WM_DRAWCLIPBOARD:
|
|
|
|
case WM_SIZECLIPBOARD:
|
|
|
|
case WM_HSCROLLCLIPBOARD:
|
|
|
|
case WM_VSCROLLCLIPBOARD:
|
|
|
|
case WM_PAINTCLIPBOARD:
|
|
|
|
*/
|
|
|
|
default:
|
|
|
|
return DefWindowProcA(hWnd, message, wParam, lParam);
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2000-03-08 19:49:36 +01:00
|
|
|
#define MAX_CLIPFORMAT_NAME 80
|
1999-07-18 17:43:45 +02:00
|
|
|
|
|
|
|
/***********************************************************************
|
|
|
|
* OLEClipbrd_RenderFormat(LPFORMATETC)
|
|
|
|
* Render the clipboard data. Note that this call will delegate to the
|
|
|
|
* source data object.
|
|
|
|
* Note: This function assumes it is passed an HGLOBAL format to render.
|
|
|
|
*/
|
1999-10-24 22:22:24 +02:00
|
|
|
static HRESULT OLEClipbrd_RenderFormat(IDataObject *pIDataObject, LPFORMATETC pFormatetc)
|
1999-07-18 17:43:45 +02:00
|
|
|
{
|
2000-03-08 19:49:36 +01:00
|
|
|
STGMEDIUM std;
|
1999-07-18 17:43:45 +02:00
|
|
|
HGLOBAL hDup;
|
|
|
|
HRESULT hr = S_OK;
|
2000-03-08 19:49:36 +01:00
|
|
|
char szFmtName[MAX_CLIPFORMAT_NAME];
|
|
|
|
ILockBytes *ptrILockBytes = 0;
|
|
|
|
HGLOBAL hStorage = 0;
|
|
|
|
|
|
|
|
GetClipboardFormatNameA(pFormatetc->cfFormat, szFmtName, MAX_CLIPFORMAT_NAME);
|
|
|
|
|
|
|
|
/* If embed source */
|
|
|
|
if (!strcmp(szFmtName, CF_EMBEDSOURCE))
|
|
|
|
{
|
|
|
|
memset(&std, 0, sizeof(STGMEDIUM));
|
|
|
|
std.tymed = pFormatetc->tymed = TYMED_ISTORAGE;
|
|
|
|
|
|
|
|
hStorage = GlobalAlloc(GMEM_SHARE|GMEM_MOVEABLE, 0);
|
|
|
|
hr = CreateILockBytesOnHGlobal(hStorage, FALSE, &ptrILockBytes);
|
|
|
|
hr = StgCreateDocfileOnILockBytes(ptrILockBytes, STGM_SHARE_EXCLUSIVE|STGM_READWRITE, 0, &std.u.pstg);
|
|
|
|
|
|
|
|
if (FAILED(hr = IDataObject_GetDataHere(theOleClipboard->pIDataObjectSrc, pFormatetc, &std)))
|
|
|
|
{
|
|
|
|
WARN("() : IDataObject_GetDataHere failed to render clipboard data! (%lx)\n", hr);
|
|
|
|
return hr;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (1) /* check whether the presentation data is already -not- present */
|
|
|
|
{
|
|
|
|
FORMATETC fmt2;
|
|
|
|
STGMEDIUM std2;
|
|
|
|
METAFILEPICT *mfp = 0;
|
|
|
|
|
|
|
|
fmt2.cfFormat = CF_METAFILEPICT;
|
|
|
|
fmt2.ptd = 0;
|
|
|
|
fmt2.dwAspect = DVASPECT_CONTENT;
|
|
|
|
fmt2.lindex = -1;
|
|
|
|
fmt2.tymed = TYMED_MFPICT;
|
|
|
|
|
|
|
|
memset(&std2, 0, sizeof(STGMEDIUM));
|
|
|
|
std2.tymed = TYMED_MFPICT;
|
|
|
|
|
|
|
|
/* Get the metafile picture out of it */
|
|
|
|
|
|
|
|
if (!FAILED(hr = IDataObject_GetData(theOleClipboard->pIDataObjectSrc, &fmt2, &std2)))
|
|
|
|
{
|
|
|
|
mfp = (METAFILEPICT *)GlobalLock(std2.u.hMetaFilePict);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (mfp)
|
|
|
|
{
|
|
|
|
OLECHAR name[]={ 2, 'O', 'l', 'e', 'P', 'r', 'e', 's', '0', '0', '0', 0};
|
|
|
|
IStream *pStream = 0;
|
|
|
|
void *mfBits;
|
|
|
|
PresentationDataHeader pdh;
|
|
|
|
INT nSize;
|
|
|
|
CLSID clsID;
|
|
|
|
LPOLESTR strProgID;
|
|
|
|
CHAR strOleTypeName[51];
|
|
|
|
BYTE OlePresStreamHeader [] =
|
|
|
|
{
|
|
|
|
0xFF, 0xFF, 0xFF, 0xFF, 0x03, 0x00, 0x00, 0x00,
|
|
|
|
0x04, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
|
|
|
|
0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x00, 0x00, 0x00,
|
|
|
|
0x00, 0x00, 0x00, 0x00
|
|
|
|
};
|
|
|
|
|
|
|
|
nSize = GetMetaFileBitsEx(mfp->hMF, 0, NULL);
|
|
|
|
|
|
|
|
memset(&pdh, 0, sizeof(PresentationDataHeader));
|
|
|
|
memcpy(&pdh, OlePresStreamHeader, sizeof(OlePresStreamHeader));
|
|
|
|
|
|
|
|
pdh.dwObjectExtentX = mfp->xExt;
|
|
|
|
pdh.dwObjectExtentY = mfp->yExt;
|
|
|
|
pdh.dwSize = nSize;
|
|
|
|
|
|
|
|
hr = IStorage_CreateStream(std.u.pstg, name, STGM_CREATE|STGM_SHARE_EXCLUSIVE|STGM_READWRITE, 0, 0, &pStream);
|
|
|
|
|
|
|
|
hr = IStream_Write(pStream, &pdh, sizeof(PresentationDataHeader), NULL);
|
|
|
|
|
|
|
|
mfBits = HeapAlloc(GetProcessHeap(), 0, nSize);
|
|
|
|
nSize = GetMetaFileBitsEx(mfp->hMF, nSize, mfBits);
|
|
|
|
|
|
|
|
hr = IStream_Write(pStream, mfBits, nSize, NULL);
|
|
|
|
|
|
|
|
IStream_Release(pStream);
|
|
|
|
|
|
|
|
HeapFree(GetProcessHeap(), 0, mfBits);
|
1999-07-18 17:43:45 +02:00
|
|
|
|
2000-03-08 19:49:36 +01:00
|
|
|
GlobalUnlock(std2.u.hMetaFilePict);
|
|
|
|
|
|
|
|
ReadClassStg(std.u.pstg, &clsID);
|
|
|
|
ProgIDFromCLSID(&clsID, &strProgID);
|
|
|
|
|
|
|
|
lstrcpyWtoA(strOleTypeName, strProgID);
|
|
|
|
OLECONVERT_CreateOleStream(std.u.pstg);
|
|
|
|
OLECONVERT_CreateCompObjStream(std.u.pstg, strOleTypeName);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
if (FAILED(hr = IDataObject_GetData(pIDataObject, pFormatetc, &std)))
|
1999-07-18 17:43:45 +02:00
|
|
|
{
|
|
|
|
WARN("() : IDataObject_GetData failed to render clipboard data! (%lx)\n", hr);
|
|
|
|
return hr;
|
|
|
|
}
|
|
|
|
|
2000-03-08 19:49:36 +01:00
|
|
|
/* To put a copy back on the clipboard */
|
|
|
|
|
|
|
|
hStorage = std.u.hGlobal;
|
|
|
|
}
|
|
|
|
|
1999-07-18 17:43:45 +02:00
|
|
|
/*
|
|
|
|
* Put a copy of the rendered data back on the clipboard
|
|
|
|
*/
|
|
|
|
|
2000-03-08 19:49:36 +01:00
|
|
|
if ( !(hDup = OLEClipbrd_GlobalDupMem(hStorage)) )
|
1999-07-18 17:43:45 +02:00
|
|
|
HANDLE_ERROR( E_OUTOFMEMORY );
|
|
|
|
|
|
|
|
if ( !SetClipboardData( pFormatetc->cfFormat, hDup ) )
|
|
|
|
{
|
|
|
|
GlobalFree(hDup);
|
|
|
|
WARN("() : Failed to set rendered clipboard data into clipboard!\n");
|
|
|
|
}
|
|
|
|
|
|
|
|
CLEANUP:
|
|
|
|
|
2000-03-08 19:49:36 +01:00
|
|
|
ReleaseStgMedium(&std);
|
1999-07-18 17:43:45 +02:00
|
|
|
|
|
|
|
return hr;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/***********************************************************************
|
|
|
|
* OLEClipbrd_GlobalDupMem( HGLOBAL )
|
|
|
|
* Helper method to duplicate an HGLOBAL chunk of memory
|
|
|
|
*/
|
|
|
|
static HGLOBAL OLEClipbrd_GlobalDupMem( HGLOBAL hGlobalSrc )
|
|
|
|
{
|
|
|
|
HGLOBAL hGlobalDest;
|
|
|
|
PVOID pGlobalSrc, pGlobalDest;
|
|
|
|
DWORD cBytes;
|
|
|
|
|
|
|
|
if ( !hGlobalSrc )
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
cBytes = GlobalSize(hGlobalSrc);
|
|
|
|
if ( 0 == cBytes )
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
hGlobalDest = GlobalAlloc( GMEM_DDESHARE|GMEM_MOVEABLE,
|
|
|
|
cBytes );
|
|
|
|
if ( !hGlobalDest )
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
pGlobalSrc = GlobalLock(hGlobalSrc);
|
|
|
|
pGlobalDest = GlobalLock(hGlobalDest);
|
|
|
|
if ( !pGlobalSrc || !pGlobalDest )
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
memcpy(pGlobalDest, pGlobalSrc, cBytes);
|
|
|
|
|
|
|
|
GlobalUnlock(hGlobalSrc);
|
|
|
|
GlobalUnlock(hGlobalDest);
|
|
|
|
|
|
|
|
return hGlobalDest;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/*---------------------------------------------------------------------*
|
|
|
|
* Implementation of the internal IDataObject interface exposed by
|
|
|
|
* the OLE clipboard.
|
|
|
|
*---------------------------------------------------------------------*/
|
|
|
|
|
|
|
|
|
|
|
|
/************************************************************************
|
|
|
|
* OLEClipbrd_IDataObject_QueryInterface (IUnknown)
|
|
|
|
*
|
|
|
|
* See Windows documentation for more details on IUnknown methods.
|
|
|
|
*/
|
|
|
|
static HRESULT WINAPI OLEClipbrd_IDataObject_QueryInterface(
|
|
|
|
IDataObject* iface,
|
|
|
|
REFIID riid,
|
|
|
|
void** ppvObject)
|
|
|
|
{
|
|
|
|
/*
|
|
|
|
* Declare "This" pointer
|
|
|
|
*/
|
|
|
|
ICOM_THIS(OLEClipbrd, iface);
|
2000-01-18 06:09:49 +01:00
|
|
|
TRACE("(%p)->(\n\tIID:\t%s,%p)\n",This,debugstr_guid(riid),ppvObject);
|
1999-07-18 17:43:45 +02:00
|
|
|
|
|
|
|
/*
|
|
|
|
* Perform a sanity check on the parameters.
|
|
|
|
*/
|
|
|
|
if ( (This==0) || (ppvObject==0) )
|
|
|
|
return E_INVALIDARG;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Initialize the return parameter.
|
|
|
|
*/
|
|
|
|
*ppvObject = 0;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Compare the riid with the interface IDs implemented by this object.
|
|
|
|
*/
|
|
|
|
if (memcmp(&IID_IUnknown, riid, sizeof(IID_IUnknown)) == 0)
|
|
|
|
{
|
|
|
|
*ppvObject = iface;
|
|
|
|
}
|
|
|
|
else if (memcmp(&IID_IDataObject, riid, sizeof(IID_IDataObject)) == 0)
|
|
|
|
{
|
|
|
|
*ppvObject = (IDataObject*)&(This->lpvtbl1);
|
|
|
|
}
|
|
|
|
else /* We only support IUnknown and IDataObject */
|
|
|
|
{
|
2000-01-18 06:09:49 +01:00
|
|
|
WARN( "() : asking for unsupported interface %s\n", debugstr_guid(riid));
|
1999-07-18 17:43:45 +02:00
|
|
|
return E_NOINTERFACE;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Query Interface always increases the reference count by one when it is
|
|
|
|
* successful.
|
|
|
|
*/
|
|
|
|
IUnknown_AddRef((IUnknown*)*ppvObject);
|
|
|
|
|
|
|
|
return S_OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
/************************************************************************
|
|
|
|
* OLEClipbrd_IDataObject_AddRef (IUnknown)
|
|
|
|
*
|
|
|
|
* See Windows documentation for more details on IUnknown methods.
|
|
|
|
*/
|
|
|
|
static ULONG WINAPI OLEClipbrd_IDataObject_AddRef(
|
|
|
|
IDataObject* iface)
|
|
|
|
{
|
|
|
|
/*
|
|
|
|
* Declare "This" pointer
|
|
|
|
*/
|
|
|
|
ICOM_THIS(OLEClipbrd, iface);
|
|
|
|
|
|
|
|
TRACE("(%p)->(count=%lu)\n",This, This->ref);
|
|
|
|
|
|
|
|
This->ref++;
|
|
|
|
|
|
|
|
return This->ref;
|
|
|
|
}
|
|
|
|
|
|
|
|
/************************************************************************
|
|
|
|
* OLEClipbrd_IDataObject_Release (IUnknown)
|
|
|
|
*
|
|
|
|
* See Windows documentation for more details on IUnknown methods.
|
|
|
|
*/
|
|
|
|
static ULONG WINAPI OLEClipbrd_IDataObject_Release(
|
|
|
|
IDataObject* iface)
|
|
|
|
{
|
|
|
|
/*
|
|
|
|
* Declare "This" pointer
|
|
|
|
*/
|
|
|
|
ICOM_THIS(OLEClipbrd, iface);
|
|
|
|
|
|
|
|
TRACE("(%p)->(count=%lu)\n",This, This->ref);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Decrease the reference count on this object.
|
|
|
|
*/
|
|
|
|
This->ref--;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* If the reference count goes down to 0, perform suicide.
|
|
|
|
*/
|
|
|
|
if (This->ref==0)
|
|
|
|
{
|
|
|
|
OLEClipbrd_Destroy(This);
|
|
|
|
}
|
|
|
|
|
|
|
|
return This->ref;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/************************************************************************
|
|
|
|
* OLEClipbrd_IDataObject_GetData (IDataObject)
|
|
|
|
*
|
|
|
|
* The OLE Clipboard's implementation of this method delegates to
|
|
|
|
* a data source if there is one or wraps around the windows clipboard
|
|
|
|
*
|
|
|
|
* See Windows documentation for more details on IDataObject methods.
|
|
|
|
*/
|
|
|
|
static HRESULT WINAPI OLEClipbrd_IDataObject_GetData(
|
|
|
|
IDataObject* iface,
|
|
|
|
LPFORMATETC pformatetcIn,
|
|
|
|
STGMEDIUM* pmedium)
|
|
|
|
{
|
|
|
|
HANDLE hData = 0;
|
1999-09-03 17:17:57 +02:00
|
|
|
BOOL bClipboardOpen = FALSE;
|
|
|
|
HRESULT hr = S_OK;
|
|
|
|
|
1999-07-18 17:43:45 +02:00
|
|
|
/*
|
|
|
|
* Declare "This" pointer
|
|
|
|
*/
|
|
|
|
ICOM_THIS(OLEClipbrd, iface);
|
2000-02-14 20:56:21 +01:00
|
|
|
|
|
|
|
TRACE("(%p,%p,%p)\n", iface, pformatetcIn, pmedium);
|
1999-07-18 17:43:45 +02:00
|
|
|
|
2000-02-14 20:56:21 +01:00
|
|
|
if ( !pformatetcIn || !pmedium )
|
1999-07-18 17:43:45 +02:00
|
|
|
return E_INVALIDARG;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* If we have a data source placed on the clipboard (via OleSetClipboard)
|
|
|
|
* simply delegate to the source object's QueryGetData
|
|
|
|
* NOTE: This code assumes that the IDataObject is in the same address space!
|
|
|
|
* We will need to add marshalling support when Wine handles multiple processes.
|
|
|
|
*/
|
|
|
|
if ( This->pIDataObjectSrc )
|
|
|
|
{
|
|
|
|
return IDataObject_GetData(This->pIDataObjectSrc, pformatetcIn, pmedium);
|
|
|
|
}
|
|
|
|
|
|
|
|
if ( pformatetcIn->lindex != -1 )
|
|
|
|
return DV_E_LINDEX;
|
|
|
|
if ( (pformatetcIn->tymed & TYMED_HGLOBAL) != TYMED_HGLOBAL )
|
|
|
|
return DV_E_TYMED;
|
|
|
|
/*
|
|
|
|
if ( pformatetcIn->dwAspect != DVASPECT_CONTENT )
|
|
|
|
return DV_E_DVASPECT;
|
|
|
|
*/
|
|
|
|
|
|
|
|
/*
|
1999-09-03 17:17:57 +02:00
|
|
|
* Otherwise, get the data from the windows clipboard using GetClipboardData
|
1999-07-18 17:43:45 +02:00
|
|
|
*/
|
1999-09-03 17:17:57 +02:00
|
|
|
if ( !(bClipboardOpen = OpenClipboard(theOleClipboard->hWndClipboard)) )
|
|
|
|
HANDLE_ERROR( CLIPBRD_E_CANT_OPEN );
|
|
|
|
|
1999-07-18 17:43:45 +02:00
|
|
|
hData = GetClipboardData(pformatetcIn->cfFormat);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Return the clipboard data in the storage medium structure
|
|
|
|
*/
|
|
|
|
pmedium->tymed = (hData == 0) ? TYMED_NULL : TYMED_HGLOBAL;
|
|
|
|
pmedium->u.hGlobal = (HGLOBAL)hData;
|
|
|
|
pmedium->pUnkForRelease = NULL;
|
|
|
|
|
1999-09-03 17:17:57 +02:00
|
|
|
hr = S_OK;
|
|
|
|
|
|
|
|
CLEANUP:
|
|
|
|
/*
|
|
|
|
* Close Windows clipboard
|
|
|
|
*/
|
|
|
|
if ( bClipboardOpen && !CloseClipboard() )
|
|
|
|
hr = CLIPBRD_E_CANT_CLOSE;
|
|
|
|
|
|
|
|
if ( FAILED(hr) )
|
|
|
|
return hr;
|
1999-07-18 17:43:45 +02:00
|
|
|
return (hData == 0) ? DV_E_FORMATETC : S_OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
static HRESULT WINAPI OLEClipbrd_IDataObject_GetDataHere(
|
|
|
|
IDataObject* iface,
|
|
|
|
LPFORMATETC pformatetc,
|
|
|
|
STGMEDIUM* pmedium)
|
|
|
|
{
|
|
|
|
FIXME(": Stub\n");
|
|
|
|
return E_NOTIMPL;
|
|
|
|
}
|
|
|
|
|
|
|
|
/************************************************************************
|
|
|
|
* OLEClipbrd_IDataObject_QueryGetData (IDataObject)
|
|
|
|
*
|
|
|
|
* The OLE Clipboard's implementation of this method delegates to
|
|
|
|
* a data source if there is one or wraps around the windows clipboard
|
|
|
|
* function IsClipboardFormatAvailable() otherwise.
|
|
|
|
*
|
|
|
|
* See Windows documentation for more details on IDataObject methods.
|
|
|
|
*/
|
|
|
|
static HRESULT WINAPI OLEClipbrd_IDataObject_QueryGetData(
|
|
|
|
IDataObject* iface,
|
|
|
|
LPFORMATETC pformatetc)
|
|
|
|
{
|
|
|
|
/*
|
|
|
|
* Declare "This" pointer
|
|
|
|
*/
|
|
|
|
ICOM_THIS(OLEClipbrd, iface);
|
|
|
|
|
|
|
|
TRACE("(%p, %p)\n", iface, pformatetc);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* If we have a data source placed on the clipboard (via OleSetClipboard)
|
|
|
|
* simply delegate to the source object's QueryGetData
|
|
|
|
*/
|
|
|
|
if ( This->pIDataObjectSrc )
|
|
|
|
{
|
|
|
|
return IDataObject_QueryGetData(This->pIDataObjectSrc, pformatetc);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!pformatetc)
|
|
|
|
return E_INVALIDARG;
|
|
|
|
/*
|
|
|
|
if ( pformatetc->dwAspect != DVASPECT_CONTENT )
|
|
|
|
return DV_E_DVASPECT;
|
|
|
|
*/
|
|
|
|
if ( pformatetc->lindex != -1 )
|
|
|
|
return DV_E_LINDEX;
|
|
|
|
|
|
|
|
/* TODO: Handle TYMED_IStorage media which were put on the clipboard
|
|
|
|
* by copying the storage into global memory. We must convert this
|
|
|
|
* TYMED_HGLOBAL back to TYMED_IStorage.
|
|
|
|
*/
|
|
|
|
if ( pformatetc->tymed != TYMED_HGLOBAL )
|
|
|
|
return DV_E_TYMED;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Delegate to the Windows clipboard function IsClipboardFormatAvailable
|
|
|
|
*/
|
|
|
|
return (IsClipboardFormatAvailable(pformatetc->cfFormat)) ? S_OK : DV_E_FORMATETC;
|
|
|
|
}
|
|
|
|
|
|
|
|
/************************************************************************
|
|
|
|
* OLEClipbrd_IDataObject_GetCanonicalFormatEtc (IDataObject)
|
|
|
|
*
|
|
|
|
* See Windows documentation for more details on IDataObject methods.
|
|
|
|
*/
|
|
|
|
static HRESULT WINAPI OLEClipbrd_IDataObject_GetCanonicalFormatEtc(
|
|
|
|
IDataObject* iface,
|
|
|
|
LPFORMATETC pformatectIn,
|
|
|
|
LPFORMATETC pformatetcOut)
|
|
|
|
{
|
|
|
|
TRACE("(%p, %p, %p)\n", iface, pformatectIn, pformatetcOut);
|
|
|
|
|
|
|
|
if ( !pformatectIn || !pformatetcOut )
|
|
|
|
return E_INVALIDARG;
|
|
|
|
|
|
|
|
memcpy(pformatetcOut, pformatectIn, sizeof(FORMATETC));
|
|
|
|
return DATA_S_SAMEFORMATETC;
|
|
|
|
}
|
|
|
|
|
|
|
|
/************************************************************************
|
|
|
|
* OLEClipbrd_IDataObject_SetData (IDataObject)
|
|
|
|
*
|
|
|
|
* The OLE Clipboard's does not implement this method
|
|
|
|
*
|
|
|
|
* See Windows documentation for more details on IDataObject methods.
|
|
|
|
*/
|
|
|
|
static HRESULT WINAPI OLEClipbrd_IDataObject_SetData(
|
|
|
|
IDataObject* iface,
|
|
|
|
LPFORMATETC pformatetc,
|
|
|
|
STGMEDIUM* pmedium,
|
|
|
|
BOOL fRelease)
|
|
|
|
{
|
2000-02-14 20:56:21 +01:00
|
|
|
TRACE("\n");
|
1999-07-18 17:43:45 +02:00
|
|
|
return E_NOTIMPL;
|
|
|
|
}
|
|
|
|
|
|
|
|
/************************************************************************
|
|
|
|
* OLEClipbrd_IDataObject_EnumFormatEtc (IDataObject)
|
|
|
|
*
|
|
|
|
* See Windows documentation for more details on IDataObject methods.
|
|
|
|
*/
|
|
|
|
static HRESULT WINAPI OLEClipbrd_IDataObject_EnumFormatEtc(
|
|
|
|
IDataObject* iface,
|
|
|
|
DWORD dwDirection,
|
|
|
|
IEnumFORMATETC** ppenumFormatEtc)
|
|
|
|
{
|
|
|
|
HRESULT hr = S_OK;
|
|
|
|
FORMATETC *afmt = NULL;
|
|
|
|
int cfmt, i;
|
|
|
|
UINT format;
|
|
|
|
BOOL bClipboardOpen;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Declare "This" pointer
|
|
|
|
*/
|
|
|
|
ICOM_THIS(OLEClipbrd, iface);
|
|
|
|
|
|
|
|
TRACE("(%p, %lx, %p)\n", iface, dwDirection, ppenumFormatEtc);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* If we have a data source placed on the clipboard (via OleSetClipboard)
|
|
|
|
* simply delegate to the source object's EnumFormatEtc
|
|
|
|
*/
|
|
|
|
if ( This->pIDataObjectSrc )
|
|
|
|
{
|
|
|
|
return IDataObject_EnumFormatEtc(This->pIDataObjectSrc,
|
|
|
|
dwDirection, ppenumFormatEtc);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Otherwise we must provide our own enumerator which wraps around the
|
|
|
|
* Windows clipboard function EnumClipboardFormats
|
|
|
|
*/
|
|
|
|
if ( !ppenumFormatEtc )
|
|
|
|
return E_INVALIDARG;
|
|
|
|
|
|
|
|
if ( dwDirection != DATADIR_GET ) /* IDataObject_SetData not implemented */
|
|
|
|
return E_NOTIMPL;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Store all current clipboard formats in an array of FORMATETC's,
|
|
|
|
* and create an IEnumFORMATETC enumerator from this list.
|
|
|
|
*/
|
|
|
|
cfmt = CountClipboardFormats();
|
|
|
|
afmt = (FORMATETC *)HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
|
|
|
|
sizeof(FORMATETC) * cfmt);
|
|
|
|
/*
|
|
|
|
* Open the Windows clipboard, associating it with our hidden window
|
|
|
|
*/
|
|
|
|
if ( !(bClipboardOpen = OpenClipboard(This->hWndClipboard)) )
|
|
|
|
HANDLE_ERROR( CLIPBRD_E_CANT_OPEN );
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Store all current clipboard formats in an array of FORMATETC's
|
|
|
|
* TODO: Handle TYMED_IStorage media which were put on the clipboard
|
|
|
|
* by copying the storage into global memory. We must convert this
|
|
|
|
* TYMED_HGLOBAL back to TYMED_IStorage.
|
|
|
|
*/
|
|
|
|
for (i = 0, format = 0; i < cfmt; i++)
|
|
|
|
{
|
|
|
|
format = EnumClipboardFormats(format);
|
|
|
|
if (!format) /* Failed! */
|
|
|
|
{
|
|
|
|
ERR("EnumClipboardFormats failed to return format!\n");
|
|
|
|
HANDLE_ERROR( E_FAIL );
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Init the FORMATETC struct */
|
|
|
|
afmt[i].cfFormat = format;
|
|
|
|
afmt[i].ptd = NULL;
|
|
|
|
afmt[i].dwAspect = DVASPECT_CONTENT;
|
|
|
|
afmt[i].lindex = -1;
|
|
|
|
afmt[i].tymed = TYMED_HGLOBAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Create an EnumFORMATETC enumerator and return an
|
|
|
|
* EnumFORMATETC after bumping up its ref count
|
|
|
|
*/
|
|
|
|
*ppenumFormatEtc = OLEClipbrd_IEnumFORMATETC_Construct( cfmt, afmt, (LPUNKNOWN)iface);
|
|
|
|
if (!(*ppenumFormatEtc))
|
|
|
|
HANDLE_ERROR( E_OUTOFMEMORY );
|
|
|
|
|
|
|
|
if (FAILED( hr = IEnumFORMATETC_AddRef(*ppenumFormatEtc)))
|
|
|
|
HANDLE_ERROR( hr );
|
|
|
|
|
|
|
|
hr = S_OK;
|
|
|
|
|
|
|
|
CLEANUP:
|
|
|
|
/*
|
|
|
|
* Free the array of FORMATETC's
|
|
|
|
*/
|
|
|
|
if (afmt)
|
|
|
|
HeapFree(GetProcessHeap(), 0, afmt);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Close Windows clipboard
|
|
|
|
*/
|
|
|
|
if ( bClipboardOpen && !CloseClipboard() )
|
|
|
|
hr = CLIPBRD_E_CANT_CLOSE;
|
|
|
|
|
|
|
|
return hr;
|
|
|
|
}
|
|
|
|
|
|
|
|
/************************************************************************
|
|
|
|
* OLEClipbrd_IDataObject_DAdvise (IDataObject)
|
|
|
|
*
|
|
|
|
* The OLE Clipboard's does not implement this method
|
|
|
|
*
|
|
|
|
* See Windows documentation for more details on IDataObject methods.
|
|
|
|
*/
|
|
|
|
static HRESULT WINAPI OLEClipbrd_IDataObject_DAdvise(
|
|
|
|
IDataObject* iface,
|
|
|
|
FORMATETC* pformatetc,
|
|
|
|
DWORD advf,
|
|
|
|
IAdviseSink* pAdvSink,
|
|
|
|
DWORD* pdwConnection)
|
|
|
|
{
|
2000-02-14 20:56:21 +01:00
|
|
|
TRACE("\n");
|
1999-07-18 17:43:45 +02:00
|
|
|
return E_NOTIMPL;
|
|
|
|
}
|
|
|
|
|
|
|
|
/************************************************************************
|
|
|
|
* OLEClipbrd_IDataObject_DUnadvise (IDataObject)
|
|
|
|
*
|
|
|
|
* The OLE Clipboard's does not implement this method
|
|
|
|
*
|
|
|
|
* See Windows documentation for more details on IDataObject methods.
|
|
|
|
*/
|
|
|
|
static HRESULT WINAPI OLEClipbrd_IDataObject_DUnadvise(
|
|
|
|
IDataObject* iface,
|
|
|
|
DWORD dwConnection)
|
|
|
|
{
|
2000-02-14 20:56:21 +01:00
|
|
|
TRACE("\n");
|
1999-07-18 17:43:45 +02:00
|
|
|
return E_NOTIMPL;
|
|
|
|
}
|
|
|
|
|
|
|
|
/************************************************************************
|
|
|
|
* OLEClipbrd_IDataObject_EnumDAdvise (IDataObject)
|
|
|
|
*
|
|
|
|
* The OLE Clipboard does not implement this method
|
|
|
|
*
|
|
|
|
* See Windows documentation for more details on IDataObject methods.
|
|
|
|
*/
|
|
|
|
static HRESULT WINAPI OLEClipbrd_IDataObject_EnumDAdvise(
|
|
|
|
IDataObject* iface,
|
|
|
|
IEnumSTATDATA** ppenumAdvise)
|
|
|
|
{
|
2000-02-14 20:56:21 +01:00
|
|
|
TRACE("\n");
|
1999-07-18 17:43:45 +02:00
|
|
|
return E_NOTIMPL;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/*---------------------------------------------------------------------*
|
|
|
|
* Implementation of the internal IEnumFORMATETC interface returned by
|
|
|
|
* the OLE clipboard's IDataObject.
|
|
|
|
*---------------------------------------------------------------------*/
|
|
|
|
|
|
|
|
/************************************************************************
|
|
|
|
* OLEClipbrd_IEnumFORMATETC_Construct (UINT, const FORMATETC, LPUNKNOWN)
|
|
|
|
*
|
|
|
|
* Creates an IEnumFORMATETC enumerator from an array of FORMATETC
|
|
|
|
* Structures. pUnkOuter is the outer unknown for reference counting only.
|
|
|
|
* NOTE: this does not AddRef the interface.
|
|
|
|
*/
|
|
|
|
|
|
|
|
LPENUMFORMATETC OLEClipbrd_IEnumFORMATETC_Construct(UINT cfmt, const FORMATETC afmt[],
|
|
|
|
LPUNKNOWN pUnkDataObj)
|
|
|
|
{
|
|
|
|
IEnumFORMATETCImpl* ef;
|
|
|
|
DWORD size=cfmt * sizeof(FORMATETC);
|
|
|
|
LPMALLOC pIMalloc;
|
|
|
|
|
|
|
|
ef = (IEnumFORMATETCImpl*)HeapAlloc(GetProcessHeap(),
|
|
|
|
HEAP_ZERO_MEMORY,
|
|
|
|
sizeof(IEnumFORMATETCImpl));
|
|
|
|
if (!ef)
|
|
|
|
return NULL;
|
|
|
|
|
|
|
|
ef->ref = 0;
|
1999-10-31 02:59:23 +01:00
|
|
|
ICOM_VTBL(ef) = &efvt;
|
1999-07-18 17:43:45 +02:00
|
|
|
ef->pUnkDataObj = pUnkDataObj;
|
|
|
|
|
|
|
|
ef->posFmt = 0;
|
|
|
|
ef->countFmt = cfmt;
|
|
|
|
if (FAILED(CoGetMalloc(MEMCTX_TASK, &pIMalloc)))
|
|
|
|
return NULL;
|
|
|
|
ef->pFmt = (LPFORMATETC)IMalloc_Alloc(pIMalloc, size);
|
|
|
|
IMalloc_Release(pIMalloc);
|
|
|
|
|
|
|
|
if (ef->pFmt)
|
|
|
|
memcpy(ef->pFmt, afmt, size);
|
|
|
|
|
|
|
|
TRACE("(%p)->()\n",ef);
|
|
|
|
return (LPENUMFORMATETC)ef;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/************************************************************************
|
|
|
|
* OLEClipbrd_IEnumFORMATETC_QueryInterface (IUnknown)
|
|
|
|
*
|
|
|
|
* See Windows documentation for more details on IUnknown methods.
|
|
|
|
*/
|
|
|
|
static HRESULT WINAPI OLEClipbrd_IEnumFORMATETC_QueryInterface
|
|
|
|
(LPENUMFORMATETC iface, REFIID riid, LPVOID* ppvObj)
|
|
|
|
{
|
|
|
|
ICOM_THIS(IEnumFORMATETCImpl,iface);
|
|
|
|
|
2000-01-18 06:09:49 +01:00
|
|
|
TRACE("(%p)->(\n\tIID:\t%s,%p)\n",This,debugstr_guid(riid),ppvObj);
|
1999-07-18 17:43:45 +02:00
|
|
|
|
|
|
|
/*
|
|
|
|
* Since enumerators are seperate objects from the parent data object
|
|
|
|
* we only need to support the IUnknown and IEnumFORMATETC interfaces
|
|
|
|
*/
|
|
|
|
|
|
|
|
*ppvObj = NULL;
|
|
|
|
|
|
|
|
if(IsEqualIID(riid, &IID_IUnknown))
|
|
|
|
{
|
|
|
|
*ppvObj = This;
|
|
|
|
}
|
|
|
|
else if(IsEqualIID(riid, &IID_IEnumFORMATETC))
|
|
|
|
{
|
|
|
|
*ppvObj = (IDataObject*)This;
|
|
|
|
}
|
|
|
|
|
|
|
|
if(*ppvObj)
|
|
|
|
{
|
|
|
|
IEnumFORMATETC_AddRef((IEnumFORMATETC*)*ppvObj);
|
|
|
|
TRACE("-- Interface: (%p)->(%p)\n",ppvObj,*ppvObj);
|
|
|
|
return S_OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
TRACE("-- Interface: E_NOINTERFACE\n");
|
|
|
|
return E_NOINTERFACE;
|
|
|
|
}
|
|
|
|
|
|
|
|
/************************************************************************
|
|
|
|
* OLEClipbrd_IEnumFORMATETC_AddRef (IUnknown)
|
|
|
|
*
|
|
|
|
* Since enumerating formats only makes sense when our data object is around,
|
|
|
|
* we insure that it stays as long as we stay by calling our parents IUnknown
|
|
|
|
* for AddRef and Release. But since we are not controlled by the lifetime of
|
|
|
|
* the outer object, we still keep our own reference count in order to
|
|
|
|
* free ourselves.
|
|
|
|
*/
|
|
|
|
static ULONG WINAPI OLEClipbrd_IEnumFORMATETC_AddRef(LPENUMFORMATETC iface)
|
|
|
|
{
|
|
|
|
ICOM_THIS(IEnumFORMATETCImpl,iface);
|
|
|
|
TRACE("(%p)->(count=%lu)\n",This, This->ref);
|
|
|
|
|
|
|
|
if (This->pUnkDataObj)
|
|
|
|
IUnknown_AddRef(This->pUnkDataObj);
|
|
|
|
|
|
|
|
return ++(This->ref);
|
|
|
|
}
|
|
|
|
|
|
|
|
/************************************************************************
|
|
|
|
* OLEClipbrd_IEnumFORMATETC_Release (IUnknown)
|
|
|
|
*
|
|
|
|
* See Windows documentation for more details on IUnknown methods.
|
|
|
|
*/
|
|
|
|
static ULONG WINAPI OLEClipbrd_IEnumFORMATETC_Release(LPENUMFORMATETC iface)
|
|
|
|
{
|
|
|
|
ICOM_THIS(IEnumFORMATETCImpl,iface);
|
|
|
|
LPMALLOC pIMalloc;
|
|
|
|
|
|
|
|
TRACE("(%p)->(count=%lu)\n",This, This->ref);
|
|
|
|
|
|
|
|
if (This->pUnkDataObj)
|
|
|
|
IUnknown_Release(This->pUnkDataObj); /* Release parent data object */
|
|
|
|
|
|
|
|
if (!--(This->ref))
|
|
|
|
{
|
|
|
|
TRACE("() - destroying IEnumFORMATETC(%p)\n",This);
|
|
|
|
if (SUCCEEDED(CoGetMalloc(MEMCTX_TASK, &pIMalloc)))
|
|
|
|
{
|
|
|
|
IMalloc_Free(pIMalloc, This->pFmt);
|
|
|
|
IMalloc_Release(pIMalloc);
|
|
|
|
}
|
|
|
|
|
|
|
|
HeapFree(GetProcessHeap(),0,This);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
return This->ref;
|
|
|
|
}
|
|
|
|
|
|
|
|
/************************************************************************
|
|
|
|
* OLEClipbrd_IEnumFORMATETC_Next (IEnumFORMATETC)
|
|
|
|
*
|
|
|
|
* Standard enumerator members for IEnumFORMATETC
|
|
|
|
*/
|
|
|
|
static HRESULT WINAPI OLEClipbrd_IEnumFORMATETC_Next
|
|
|
|
(LPENUMFORMATETC iface, ULONG celt, FORMATETC *rgelt, ULONG *pceltFethed)
|
|
|
|
{
|
|
|
|
ICOM_THIS(IEnumFORMATETCImpl,iface);
|
|
|
|
UINT cfetch;
|
|
|
|
HRESULT hres = S_FALSE;
|
|
|
|
|
|
|
|
TRACE("(%p)->(pos=%u)\n", This, This->posFmt);
|
|
|
|
|
|
|
|
if (This->posFmt < This->countFmt)
|
|
|
|
{
|
|
|
|
cfetch = This->countFmt - This->posFmt;
|
|
|
|
if (cfetch >= celt)
|
|
|
|
{
|
|
|
|
cfetch = celt;
|
|
|
|
hres = S_OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
memcpy(rgelt, &This->pFmt[This->posFmt], cfetch * sizeof(FORMATETC));
|
|
|
|
This->posFmt += cfetch;
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
cfetch = 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (pceltFethed)
|
|
|
|
{
|
|
|
|
*pceltFethed = cfetch;
|
|
|
|
}
|
|
|
|
|
|
|
|
return hres;
|
|
|
|
}
|
|
|
|
|
|
|
|
/************************************************************************
|
|
|
|
* OLEClipbrd_IEnumFORMATETC_Skip (IEnumFORMATETC)
|
|
|
|
*
|
|
|
|
* Standard enumerator members for IEnumFORMATETC
|
|
|
|
*/
|
|
|
|
static HRESULT WINAPI OLEClipbrd_IEnumFORMATETC_Skip(LPENUMFORMATETC iface, ULONG celt)
|
|
|
|
{
|
|
|
|
ICOM_THIS(IEnumFORMATETCImpl,iface);
|
|
|
|
TRACE("(%p)->(num=%lu)\n", This, celt);
|
|
|
|
|
|
|
|
This->posFmt += celt;
|
|
|
|
if (This->posFmt > This->countFmt)
|
|
|
|
{
|
|
|
|
This->posFmt = This->countFmt;
|
|
|
|
return S_FALSE;
|
|
|
|
}
|
|
|
|
return S_OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
/************************************************************************
|
|
|
|
* OLEClipbrd_IEnumFORMATETC_Reset (IEnumFORMATETC)
|
|
|
|
*
|
|
|
|
* Standard enumerator members for IEnumFORMATETC
|
|
|
|
*/
|
|
|
|
static HRESULT WINAPI OLEClipbrd_IEnumFORMATETC_Reset(LPENUMFORMATETC iface)
|
|
|
|
{
|
|
|
|
ICOM_THIS(IEnumFORMATETCImpl,iface);
|
|
|
|
TRACE("(%p)->()\n", This);
|
|
|
|
|
|
|
|
This->posFmt = 0;
|
|
|
|
return S_OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
/************************************************************************
|
|
|
|
* OLEClipbrd_IEnumFORMATETC_Clone (IEnumFORMATETC)
|
|
|
|
*
|
|
|
|
* Standard enumerator members for IEnumFORMATETC
|
|
|
|
*/
|
|
|
|
static HRESULT WINAPI OLEClipbrd_IEnumFORMATETC_Clone
|
|
|
|
(LPENUMFORMATETC iface, LPENUMFORMATETC* ppenum)
|
|
|
|
{
|
|
|
|
ICOM_THIS(IEnumFORMATETCImpl,iface);
|
|
|
|
HRESULT hr = S_OK;
|
|
|
|
|
|
|
|
TRACE("(%p)->(ppenum=%p)\n", This, ppenum);
|
|
|
|
|
|
|
|
if ( !ppenum )
|
|
|
|
return E_INVALIDARG;
|
|
|
|
|
|
|
|
*ppenum = OLEClipbrd_IEnumFORMATETC_Construct(This->countFmt,
|
|
|
|
This->pFmt,
|
|
|
|
This->pUnkDataObj);
|
|
|
|
|
|
|
|
if (FAILED( hr = IEnumFORMATETC_AddRef(*ppenum)))
|
|
|
|
return ( hr );
|
|
|
|
|
|
|
|
return (*ppenum) ? S_OK : E_OUTOFMEMORY;
|
|
|
|
}
|
|
|
|
|