/******************************************************************
* WDML_HandleRequestReply
*
*
*/
static WDML_QUEUE_STATE WDML_HandleRequestReply(WDML_CONV* pConv, MSG* msg, WDML_XACT* pXAct, DWORD *ack)
{
DDEACK ddeAck;
WINE_DDEHEAD wdh;
UINT_PTR uiLo, uiHi;
HSZ hsz;
if (WIN_GetFullHandle((HWND)msg->wParam) != pConv->hwndServer)
return WDML_QS_PASS;
switch (msg->message)
{
case WM_DDE_ACK:
UnpackDDElParam(WM_DDE_ACK, msg->lParam, &uiLo, &uiHi);
FreeDDElParam(WM_DDE_ACK, msg->lParam);
GlobalDeleteAtom(uiHi);
if (ack) *ack = uiLo;
WDML_ExtractAck(uiLo, &ddeAck);
pXAct->hDdeData = 0;
if (ddeAck.fAck)
ERR("Positive answer should appear in NACK for a request, assuming negative\n");
TRACE("Negative answer...\n");
break;
case WM_DDE_DATA:
UnpackDDElParam(WM_DDE_DATA, msg->lParam, &uiLo, &uiHi);
TRACE("Got the result (%08lx)\n", uiLo);
hsz = WDML_MakeHszFromAtom(pConv->instance, uiHi);
if (DdeCmpStringHandles(hsz, pXAct->hszItem) != 0)
return WDML_QS_PASS;
pXAct->hDdeData = WDML_Global2DataHandle(pConv, (HGLOBAL)uiLo, &wdh);
if (wdh.fRelease)
{
GlobalFree((HGLOBAL)uiLo);
}
if (wdh.fAckReq)
{
pConv->instance->lastError = DMLERR_MEMORY_ERROR;
}
else
{
GlobalDeleteAtom(uiHi);
FreeDDElParam(WM_DDE_ACK, msg->lParam);
}
break;
default:
FreeDDElParam(msg->message, msg->lParam);
return WDML_QS_PASS;
}
return WDML_QS_HANDLED;
}
/******************************************************************
* WDML_HandlePokeReply
*
*
*/
static WDML_QUEUE_STATE WDML_HandlePokeReply(WDML_CONV* pConv, MSG* msg, WDML_XACT* pXAct, DWORD *ack)
{
UINT_PTR uiLo, uiHi;
HSZ hsz;
if (msg->message != WM_DDE_ACK && WIN_GetFullHandle((HWND)msg->wParam) != pConv->hwndServer)
{
return WDML_QS_PASS;
}
UnpackDDElParam(WM_DDE_ACK, msg->lParam, &uiLo, &uiHi);
hsz = WDML_MakeHszFromAtom(pConv->instance, uiHi);
if (DdeCmpStringHandles(hsz, pXAct->hszItem) != 0)
{
return WDML_QS_PASS;
}
FreeDDElParam(WM_DDE_ACK, msg->lParam);
GlobalDeleteAtom(uiHi);
if (ack) *ack = uiLo;
pXAct->hMem = GlobalFree(pXAct->hMem);
pXAct->hDdeData = (HDDEDATA)TRUE;
return TRUE;
}
/******************************************************************
* WDML_HandleExecuteReply
*
*
*/
static WDML_QUEUE_STATE WDML_HandleExecuteReply(WDML_CONV* pConv, MSG* msg, WDML_XACT* pXAct, DWORD *ack)
{
DDEACK ddeAck;
UINT_PTR uiLo, uiHi;
if (msg->message != WM_DDE_ACK || WIN_GetFullHandle((HWND)msg->wParam) != pConv->hwndServer)
{
return WDML_QS_PASS;
}
UnpackDDElParam(WM_DDE_ACK, msg->lParam, &uiLo, &uiHi);
FreeDDElParam(WM_DDE_ACK, msg->lParam);
if ((HANDLE)uiHi != pXAct->hMem)
{
return WDML_QS_PASS;
}
if (ack) *ack = uiLo;
WDML_ExtractAck(uiLo, &ddeAck);
pXAct->hDdeData = (HDDEDATA)(UINT_PTR)ddeAck.fAck;
TRACE("hDdeData = %p\n", pXAct->hDdeData);
pConv->instance->lastError = (pXAct->hDdeData != 0) ? DMLERR_NO_ERROR : DMLERR_NOTPROCESSED;
return WDML_QS_HANDLED;
}
/******************************************************************
* WDML_HandleIncomingData
*
*
*/
static WDML_QUEUE_STATE WDML_HandleIncomingData(WDML_CONV* pConv, MSG* msg, HDDEDATA* hdd)
{
UINT_PTR uiLo, uiHi;
HDDEDATA hDdeDataIn, hDdeDataOut;
WDML_LINK* pLink;
WINE_DDEHEAD wdh;
HSZ hsz;
TRACE("WM_DDE_DATA message received in the Client Proc!\n");
/* wParam -- sending window handle */
/* lParam -- hDdeData & item HSZ */
UnpackDDElParam(WM_DDE_DATA, msg->lParam, &uiLo, &uiHi);
hsz = WDML_MakeHszFromAtom(pConv->instance, uiHi);
hDdeDataIn = WDML_Global2DataHandle(pConv, (HGLOBAL)uiLo, &wdh);
/* billx:
* For hot link, data should be passed to its callback with
* XTYP_ADVDATA and callback should return the proper status.
*/
pLink = WDML_FindLink(pConv->instance, (HCONV)pConv, WDML_CLIENT_SIDE, hsz,
uiLo != 0, wdh.cfFormat);
if (!pLink)
{
WDML_DecHSZ(pConv->instance, hsz);
DdeFreeDataHandle(hDdeDataIn);
return WDML_QS_PASS;
}
if (hDdeDataIn != 0 && wdh.fAckReq)
{
WDML_PostAck(pConv, WDML_CLIENT_SIDE, 0, FALSE, TRUE, uiHi, msg->lParam, WM_DDE_DATA);
if (msg->lParam)
msg->lParam = 0;
}
else
{
GlobalDeleteAtom(uiHi);
}
hDdeDataOut = WDML_InvokeCallback(pConv->instance, XTYP_ADVDATA, pLink->uFmt, pLink->hConv,
pConv->hszTopic, pLink->hszItem, hDdeDataIn, 0, 0);
if (hDdeDataOut != (HDDEDATA)DDE_FACK || wdh.fRelease)
{
if (uiLo) GlobalFree((HANDLE)uiLo);
}
DdeFreeDataHandle(hDdeDataIn);
WDML_DecHSZ(pConv->instance, hsz);
if (msg->lParam)
FreeDDElParam(WM_DDE_DATA, msg->lParam);
return WDML_QS_HANDLED;
}
/******************************************************************
* WDML_HandleAdviseReply
*
* handles the reply to an advise request
*/
static WDML_QUEUE_STATE WDML_HandleAdviseReply(WDML_CONV* pConv, MSG* msg, WDML_XACT* pXAct, DWORD *ack)
{
DDEACK ddeAck;
UINT_PTR uiLo, uiHi;
HSZ hsz;
if (msg->message != WM_DDE_ACK || WIN_GetFullHandle((HWND)msg->wParam) != pConv->hwndServer)
{
return WDML_QS_PASS;
}
UnpackDDElParam(WM_DDE_ACK, msg->lParam, &uiLo, &uiHi);
hsz = WDML_MakeHszFromAtom(pConv->instance, uiHi);
if (DdeCmpStringHandles(hsz, pXAct->hszItem) != 0)
return WDML_QS_PASS;
GlobalDeleteAtom(uiHi);
FreeDDElParam(WM_DDE_ACK, msg->lParam);
if (ack) *ack = uiLo;
WDML_ExtractAck(uiLo, &ddeAck);
if (ddeAck.fAck)
{
WDML_LINK* pLink;
/* billx: first to see if the link is already created. */
pLink = WDML_FindLink(pConv->instance, (HCONV)pConv, WDML_CLIENT_SIDE,
pXAct->hszItem, TRUE, pXAct->wFmt);
if (pLink != NULL)
{
/* we found a link, and only need to modify it in case it changes */
pLink->transactionType = pXAct->wType;
}
else
{
WDML_AddLink(pConv->instance, (HCONV)pConv, WDML_CLIENT_SIDE,
pXAct->wType, pXAct->hszItem, pXAct->wFmt);
}
pXAct->hDdeData = (HDDEDATA)1;
}
else
{
TRACE("Returning FALSE on XTYP_ADVSTART - fAck was FALSE\n");
GlobalFree(pXAct->hMem);
pXAct->hDdeData = NULL;
}
return WDML_QS_HANDLED;
}
/******************************************************************
* WDML_HandleUnadviseReply
*
*
*/
static WDML_QUEUE_STATE WDML_HandleUnadviseReply(WDML_CONV* pConv, MSG* msg, WDML_XACT* pXAct, DWORD *ack)
{
DDEACK ddeAck;
UINT_PTR uiLo, uiHi;
HSZ hsz;
if (msg->message != WM_DDE_ACK || WIN_GetFullHandle((HWND)msg->wParam) != pConv->hwndServer)
{
return WDML_QS_PASS;
}
UnpackDDElParam(WM_DDE_ACK, msg->lParam, &uiLo, &uiHi);
hsz = WDML_MakeHszFromAtom(pConv->instance, uiHi);
if (DdeCmpStringHandles(hsz, pXAct->hszItem) != 0)
return WDML_QS_PASS;
FreeDDElParam(WM_DDE_ACK, msg->lParam);
GlobalDeleteAtom(uiHi);
if (ack) *ack = uiLo;
WDML_ExtractAck(uiLo, &ddeAck);
TRACE("WM_DDE_ACK received while waiting for a timeout\n");
if (!ddeAck.fAck)
{
TRACE("Returning FALSE on XTYP_ADVSTOP - fAck was FALSE\n");
pXAct->hDdeData = NULL;
}
else
{
/* billx: remove the link */
WDML_RemoveLink(pConv->instance, (HCONV)pConv, WDML_CLIENT_SIDE,
pXAct->hszItem, pXAct->wFmt);
pXAct->hDdeData = (HDDEDATA)1;
}
return WDML_QS_HANDLED;
}
/******************************************************************
* WDML_ServerHandleUnadvise
*
*
*/
static WDML_QUEUE_STATE WDML_ServerHandleUnadvise(WDML_CONV* pConv, WDML_XACT* pXAct)
{
WDML_LINK* pLink;
if (pXAct->hszItem == (HSZ)0 || pXAct->wFmt == 0)
{
ERR("Unsupported yet options (null item or clipboard format)\n");
return WDML_QS_ERROR;
}
pLink = WDML_FindLink(pConv->instance, (HCONV)pConv, WDML_SERVER_SIDE,
pXAct->hszItem, TRUE, pXAct->wFmt);
if (pLink == NULL)
{
ERR("Couln'd find link for %08lx, dropping request\n", (DWORD)pXAct->hszItem);
FreeDDElParam(WM_DDE_UNADVISE, pXAct->lParam);
return WDML_QS_ERROR;
}
if (!(pConv->instance->CBFflags & CBF_FAIL_ADVISES))
{
WDML_InvokeCallback(pConv->instance, XTYP_ADVSTOP, pXAct->wFmt, (HCONV)pConv,
pConv->hszTopic, pXAct->hszItem, 0, 0, 0);
}
WDML_RemoveLink(pConv->instance, (HCONV)pConv, WDML_SERVER_SIDE,
pXAct->hszItem, pXAct->wFmt);
/* send back ack */
WDML_PostAck(pConv, WDML_SERVER_SIDE, 0, FALSE, TRUE, pXAct->atom,
pXAct->lParam, WM_DDE_UNADVISE);
WDML_DecHSZ(pConv->instance, pXAct->hszItem);
return WDML_QS_HANDLED;
}
static LRESULT CALLBACK DdeMessageWindow(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
switch (msg) {
case WM_DDE_INITIATE:
{
ATOM hSzApp = LOWORD(lParam); /* no UnpackDDElParam() here */
ATOM hSzTopic = HIWORD(lParam);
if ((hSzApp == GlobalFindAtom(DDEAPP) && hSzTopic == GlobalFindAtom(DDETOPIC)) || !hSzApp) {
hSzApp = GlobalAddAtom(DDEAPP);
hSzTopic = GlobalAddAtom(DDETOPIC);
if (hSzApp && hSzTopic)
/* PackDDElParam() only for posted msgs */
SendMessage((HWND)wParam, WM_DDE_ACK, (WPARAM)hwnd, MAKELPARAM(hSzApp, hSzTopic));
if (hSzApp) GlobalDeleteAtom(hSzApp);
if (hSzTopic) GlobalDeleteAtom(hSzTopic);
}
}
return 0;
case WM_DDE_EXECUTE: /* posted message */
HGLOBAL hCommand;
if (UnpackDDElParam(msg, lParam, NULL, (PUINT_PTR)&hCommand)) {
/* ANSI execute command can't happen for shell */
if (IsWindowUnicode((HWND)wParam)) {
TCHAR *pszCommand = (TCHAR*)GlobalLock(hCommand);
if (pszCommand != NULL) {
TCHAR *pszAction = GetExecuteParam(&pszCommand);
TCHAR *pszArg = GetExecuteParam(&pszCommand);
if (pszArg != NULL) {
/* we are inside miranda here, we make it async so the shell does
* not timeout regardless what the plugins try to do. */
if (!mir_tstrcmpi(pszAction, _T("file")))
CallFunctionAsync(FileActionAsync, mir_tstrdup(pszArg));
else if (!mir_tstrcmpi(pszAction, _T("url")))
CallFunctionAsync(UrlActionAsync, mir_tstrdup(pszArg));
}
GlobalUnlock(hCommand);
}
}
DDEACK ack;
memset(&ack, 0, sizeof(ack));
lParam = ReuseDDElParam(lParam, msg, WM_DDE_ACK, *(PUINT)&ack, (UINT_PTR)hCommand);
if (!PostMessage((HWND)wParam, WM_DDE_ACK, (WPARAM)hwnd, lParam)) {
GlobalFree(hCommand);
FreeDDElParam(WM_DDE_ACK, lParam);
}
}
return 0;
case WM_DDE_TERMINATE:
PostMessage((HWND)wParam, msg, (WPARAM)hwnd, 0); /* ack reply */
return 0;
case WM_DDE_REQUEST:
case WM_DDE_ADVISE:
case WM_DDE_UNADVISE:
case WM_DDE_POKE:
/* fail safely for those to avoid memory leak in lParam */
{
ATOM hSzItem;
DDEACK ack;
memset(&ack, 0, sizeof(ack));
if (UnpackDDElParam(msg, lParam, NULL, (PUINT_PTR)&hSzItem)) {
lParam = ReuseDDElParam(lParam, msg, WM_DDE_ACK, *(PUINT)&ack, (UINT)hSzItem);
if (!PostMessage((HWND)wParam, WM_DDE_ACK, (WPARAM)hwnd, lParam)) {
if (hSzItem) GlobalDeleteAtom(hSzItem);
FreeDDElParam(WM_DDE_ACK, lParam);
}
}
return 0;
}
}
return DefWindowProc(hwnd, msg, wParam, lParam);
}