int cliprdr_process_format_list(struct stream* s, int msg_flags, int size)
{
int format_number;
/* long format announce */
if (msg_flags == CB_ASCII_NAMES)
{
log_message(l_config, LOG_LEVEL_WARNING, "vchannel_cliprdr[cliprdr_process_format_list]: "
"Long format list is not yet supported");
return 1;
}
/* short format announce */
format_number = size / 36;
log_message(l_config, LOG_LEVEL_DEBUG, "vchannel_cliprdr[cliprdr_process_format_list]: "
"%i formats announced", format_number);
s->p = s->end;
cliprdr_send_format_list_response();
log_message(l_config, LOG_LEVEL_DEBUG, "vchannel_cliprdr[cliprdr_process_format_list]: "
"get the clipboard");
// We only support unicode content
clipboard_current_clipboard_clear(&clipboard);
clipboard_add_current_clipboard_format(&clipboard, format_utf8_string_atom);
cliprdr_send_data_request();
XSetSelectionOwner(display, clipboard_atom, wclip, CurrentTime);
if (XGetSelectionOwner(display, clipboard_atom) != wclip)
{
log_message(l_config, LOG_LEVEL_WARNING, "vchannel_cliprdr[cliprdr_process_format_list]: "
"Unable to set clipboard owner");
}
return 0;
}
static LRESULT CALLBACK cliprdr_proc(HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam)
{
static cliprdrContext *cliprdr = NULL;
switch (Msg)
{
case WM_CREATE:
cliprdr = (cliprdrContext *)((CREATESTRUCT *)lParam)->lpCreateParams;
cliprdr->hwndNextViewer = SetClipboardViewer(hWnd);
if (cliprdr->hwndNextViewer == NULL && GetLastError() != 0)
{
DEBUG_CLIPRDR("error: SetClipboardViewer failed with 0x%0x.", GetLastError());
}
cliprdr->hwndClipboard = hWnd;
break;
case WM_CLOSE:
ChangeClipboardChain(hWnd, cliprdr->hwndNextViewer);
break;
case WM_CHANGECBCHAIN:
if (cliprdr->hwndNextViewer == (HWND)wParam)
{
cliprdr->hwndNextViewer = (HWND)lParam;
}
else if (cliprdr->hwndNextViewer != NULL)
{
SendMessage(cliprdr->hwndNextViewer, Msg, wParam, lParam);
}
break;
case WM_DRAWCLIPBOARD:
if (cliprdr->channel_initialized)
{
if (GetClipboardOwner() != cliprdr->hwndClipboard)
{
if (!cliprdr->hmem)
{
cliprdr->hmem = GlobalFree(cliprdr->hmem);
}
cliprdr_send_format_list(cliprdr);
}
}
if (cliprdr->hwndNextViewer != NULL && cliprdr->hwndNextViewer != hWnd)
SendMessage(cliprdr->hwndNextViewer, Msg, wParam, lParam);
break;
case WM_RENDERALLFORMATS:
/* discard all contexts in clipboard */
if (!OpenClipboard(cliprdr->hwndClipboard))
{
DEBUG_CLIPRDR("OpenClipboard failed with 0x%x", GetLastError());
break;
}
EmptyClipboard();
CloseClipboard();
break;
case WM_RENDERFORMAT:
if (cliprdr_send_data_request(cliprdr, (UINT32)wParam) != 0)
{
DEBUG_CLIPRDR("error: cliprdr_send_data_request failed.");
break;
}
if (SetClipboardData(wParam, cliprdr->hmem) == NULL)
{
DEBUG_CLIPRDR("SetClipboardData failed with 0x%x", GetLastError());
cliprdr->hmem = GlobalFree(cliprdr->hmem);
}
/* Note: GlobalFree() is not needed when success */
break;
case WM_CLIPBOARDUPDATE:
case WM_DESTROYCLIPBOARD:
case WM_ASKCBFORMATNAME:
case WM_HSCROLLCLIPBOARD:
case WM_PAINTCLIPBOARD:
case WM_SIZECLIPBOARD:
case WM_VSCROLLCLIPBOARD:
default:
return DefWindowProc(hWnd, Msg, wParam, lParam);
}
return 0;
}
HRESULT STDMETHODCALLTYPE CliprdrDataObject_GetData(IDataObject* This, FORMATETC* pFormatEtc, STGMEDIUM* pMedium)
{
int i, idx;
CliprdrDataObject* instance = (CliprdrDataObject*) This;
wfClipboard* clipboard = (wfClipboard*) instance->m_pData;
if (!pFormatEtc || !pMedium)
{
return E_INVALIDARG;
}
if ((idx = cliprdr_lookup_format(instance, pFormatEtc)) == -1)
{
return DV_E_FORMATETC;
}
pMedium->tymed = instance->m_pFormatEtc[idx].tymed;
pMedium->pUnkForRelease = 0;
if (instance->m_pFormatEtc[idx].cfFormat == clipboard->ID_FILEDESCRIPTORW)
{
if (cliprdr_send_data_request(clipboard, instance->m_pFormatEtc[idx].cfFormat) != 0)
return E_UNEXPECTED;
pMedium->hGlobal = clipboard->hmem; /* points to a FILEGROUPDESCRIPTOR structure */
/* GlobalLock returns a pointer to the first byte of the memory block,
* in which is a FILEGROUPDESCRIPTOR structure, whose first UINT member
* is the number of FILEDESCRIPTOR's */
instance->m_nStreams = *((PUINT) GlobalLock(clipboard->hmem));
GlobalUnlock(clipboard->hmem);
if (instance->m_nStreams > 0)
{
if (!instance->m_pStream)
{
instance->m_pStream = (LPSTREAM*) calloc(instance->m_nStreams, sizeof(LPSTREAM));
if (instance->m_pStream)
{
for (i = 0; i < instance->m_nStreams; i++)
{
instance->m_pStream[i] = (IStream*) CliprdrStream_New(i, clipboard);
}
}
}
}
if (!instance->m_pStream)
{
if (clipboard->hmem)
{
GlobalFree(clipboard->hmem);
clipboard->hmem = NULL;
}
pMedium->hGlobal = NULL;
return E_OUTOFMEMORY;
}
}
else if (instance->m_pFormatEtc[idx].cfFormat == clipboard->ID_FILECONTENTS)
{
if (pFormatEtc->lindex < instance->m_nStreams)
{
pMedium->pstm = instance->m_pStream[pFormatEtc->lindex];
IDataObject_AddRef(instance->m_pStream[pFormatEtc->lindex]);
}
else
{
return E_INVALIDARG;
}
}
else if (instance->m_pFormatEtc[idx].cfFormat == clipboard->ID_PREFERREDDROPEFFECT)
{
if (cliprdr_send_data_request(clipboard, instance->m_pFormatEtc[idx].cfFormat) != 0)
return E_UNEXPECTED;
pMedium->hGlobal = clipboard->hmem;
}
else
{
return E_UNEXPECTED;
}
return S_OK;
}
static LRESULT CALLBACK cliprdr_proc(HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam)
{
static wfClipboard* clipboard = NULL;
switch (Msg)
{
case WM_CREATE:
DEBUG_CLIPRDR("info: WM_CREATE");
clipboard = (wfClipboard*)((CREATESTRUCT*) lParam)->lpCreateParams;
if (!AddClipboardFormatListener(hWnd)) {
DEBUG_CLIPRDR("error: AddClipboardFormatListener failed with %#x.", GetLastError());
}
clipboard->hwnd = hWnd;
break;
case WM_CLOSE:
DEBUG_CLIPRDR("info: WM_CLOSE");
RemoveClipboardFormatListener(hWnd);
break;
case WM_CLIPBOARDUPDATE:
DEBUG_CLIPRDR("info: WM_CLIPBOARDUPDATE");
if (clipboard->sync)
{
if ((GetClipboardOwner() != clipboard->hwnd) &&
(S_FALSE == OleIsCurrentClipboard(clipboard->data_obj)))
{
if (clipboard->hmem)
{
GlobalFree(clipboard->hmem);
clipboard->hmem = NULL;
}
cliprdr_send_format_list(clipboard);
}
}
break;
case WM_RENDERALLFORMATS:
DEBUG_CLIPRDR("info: WM_RENDERALLFORMATS");
/* discard all contexts in clipboard */
if (!OpenClipboard(clipboard->hwnd))
{
DEBUG_CLIPRDR("OpenClipboard failed with 0x%x", GetLastError());
break;
}
EmptyClipboard();
CloseClipboard();
break;
case WM_RENDERFORMAT:
DEBUG_CLIPRDR("info: WM_RENDERFORMAT");
if (cliprdr_send_data_request(clipboard, (UINT32) wParam) != 0)
{
DEBUG_CLIPRDR("error: cliprdr_send_data_request failed.");
break;
}
if (!SetClipboardData((UINT) wParam, clipboard->hmem))
{
DEBUG_CLIPRDR("SetClipboardData failed with 0x%x", GetLastError());
if (clipboard->hmem)
{
GlobalFree(clipboard->hmem);
clipboard->hmem = NULL;
}
}
/* Note: GlobalFree() is not needed when success */
break;
case WM_CLIPRDR_MESSAGE:
DEBUG_CLIPRDR("info: WM_CLIPRDR_MESSAGE");
switch (wParam)
{
case OLE_SETCLIPBOARD:
DEBUG_CLIPRDR("info: OLE_SETCLIPBOARD");
if (wf_create_file_obj(clipboard, &clipboard->data_obj))
{
if (OleSetClipboard(clipboard->data_obj) != S_OK)
{
wf_destroy_file_obj(clipboard->data_obj);
clipboard->data_obj = NULL;
}
}
break;
default:
break;
}
break;
case WM_DESTROYCLIPBOARD:
case WM_ASKCBFORMATNAME:
case WM_HSCROLLCLIPBOARD:
case WM_PAINTCLIPBOARD:
case WM_SIZECLIPBOARD:
case WM_VSCROLLCLIPBOARD:
default:
return DefWindowProc(hWnd, Msg, wParam, lParam);
}
return 0;
}
