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Diffstat (limited to '')
| -rw-r--r-- | src/VBox/HostServices/SharedClipboard/VBoxSharedClipboardSvc-win.cpp | 890 |
1 files changed, 890 insertions, 0 deletions
diff --git a/src/VBox/HostServices/SharedClipboard/VBoxSharedClipboardSvc-win.cpp b/src/VBox/HostServices/SharedClipboard/VBoxSharedClipboardSvc-win.cpp new file mode 100644 index 00000000..2a8db65d --- /dev/null +++ b/src/VBox/HostServices/SharedClipboard/VBoxSharedClipboardSvc-win.cpp @@ -0,0 +1,890 @@ +/* $Id: VBoxSharedClipboardSvc-win.cpp $ */ +/** @file + * Shared Clipboard Service - Win32 host. + */ + +/* + * Copyright (C) 2006-2023 Oracle and/or its affiliates. + * + * This file is part of VirtualBox base platform packages, as + * available from https://www.virtualbox.org. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation, in version 3 of the + * License. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see <https://www.gnu.org/licenses>. + * + * SPDX-License-Identifier: GPL-3.0-only + */ + + +/********************************************************************************************************************************* +* Header Files * +*********************************************************************************************************************************/ +#define LOG_GROUP LOG_GROUP_SHARED_CLIPBOARD +#include <iprt/win/windows.h> + +#include <VBox/HostServices/VBoxClipboardSvc.h> +#include <VBox/GuestHost/clipboard-helper.h> +#include <VBox/GuestHost/SharedClipboard-win.h> +#ifdef VBOX_WITH_SHARED_CLIPBOARD_TRANSFERS +# include <VBox/GuestHost/SharedClipboard-transfers.h> +#endif + +#include <iprt/alloc.h> +#include <iprt/string.h> +#include <iprt/asm.h> +#include <iprt/assert.h> +#include <iprt/ldr.h> +#include <iprt/semaphore.h> +#include <iprt/thread.h> +#ifdef VBOX_WITH_SHARED_CLIPBOARD_TRANSFERS +# include <iprt/utf16.h> +#endif + +#include <process.h> +#include <iprt/win/shlobj.h> /* Needed for shell objects. */ + +#include "VBoxSharedClipboardSvc-internal.h" +#ifdef VBOX_WITH_SHARED_CLIPBOARD_TRANSFERS +# include "VBoxSharedClipboardSvc-transfers.h" +#endif + + +/********************************************************************************************************************************* +* Internal Functions * +*********************************************************************************************************************************/ +static int vboxClipboardSvcWinSyncInternal(PSHCLCONTEXT pCtx); + +struct SHCLCONTEXT +{ + /** Handle for window message handling thread. */ + RTTHREAD hThread; + /** Structure for keeping and communicating with service client. */ + PSHCLCLIENT pClient; + /** Windows-specific context data. */ + SHCLWINCTX Win; +}; + + +/** + * Copy clipboard data into the guest buffer. + * + * At first attempt, guest will provide a buffer of default size. + * Usually 1K or 4K (see platform specific Guest Additions code around + * VbglR3ClipboardReadData calls). If this buffer is not big enough + * to fit host clipboard content, this function will return VINF_BUFFER_OVERFLOW + * and provide guest with host's clipboard buffer actual size. This will be a + * signal for the guest to re-read host clipboard data providing bigger buffer + * to store it. + * + * @returns IPRT status code. + * @returns VINF_BUFFER_OVERFLOW returned when guest buffer size if not big + * enough to store host clipboard data. This is a signal to the guest + * to re-issue host clipboard read request with bigger buffer size + * (specified in @a pcbActualDst output parameter). + * @param u32Format VBox clipboard format (VBOX_SHCL_FMT_XXX) of copied data. + * @param pvSrc Pointer to host clipboard data. + * @param cbSrc Size (in bytes) of actual clipboard data to copy. + * @param pvDst Pointer to guest buffer to store clipboard data. + * @param cbDst Size (in bytes) of guest buffer. + * @param pcbActualDst Actual size (in bytes) of host clipboard data. + * Only set if guest buffer size if not big enough + * to store host clipboard content. When set, + * function returns VINF_BUFFER_OVERFLOW. + */ +static int vboxClipboardSvcWinDataGet(uint32_t u32Format, const void *pvSrc, uint32_t cbSrc, + void *pvDst, uint32_t cbDst, uint32_t *pcbActualDst) +{ + AssertPtrReturn(pvSrc, VERR_INVALID_POINTER); + AssertReturn (cbSrc, VERR_INVALID_PARAMETER); + AssertPtrReturn(pvDst, VERR_INVALID_POINTER); + AssertReturn (cbDst, VERR_INVALID_PARAMETER); + AssertPtrReturn(pcbActualDst, VERR_INVALID_POINTER); + + LogFlowFunc(("cbSrc = %d, cbDst = %d\n", cbSrc, cbDst)); + + if ( u32Format == VBOX_SHCL_FMT_HTML + && SharedClipboardWinIsCFHTML((const char *)pvSrc)) + { + /** @todo r=bird: Why the double conversion? */ + char *pszBuf = NULL; + uint32_t cbBuf = 0; + int rc = SharedClipboardWinConvertCFHTMLToMIME((const char *)pvSrc, cbSrc, &pszBuf, &cbBuf); + if (RT_SUCCESS(rc)) + { + *pcbActualDst = cbBuf; + if (cbBuf > cbDst) + { + /* Do not copy data. The dst buffer is not enough. */ + RTMemFree(pszBuf); + return VINF_BUFFER_OVERFLOW; + } + memcpy(pvDst, pszBuf, cbBuf); + RTMemFree(pszBuf); + } + else + *pcbActualDst = 0; + } + else + { + *pcbActualDst = cbSrc; /* Tell the caller how much space we need. */ + + if (cbSrc > cbDst) + return VINF_BUFFER_OVERFLOW; + + memcpy(pvDst, pvSrc, cbSrc); + } + +#ifdef LOG_ENABLED + ShClDbgDumpData(pvDst, cbSrc, u32Format); +#endif + + return VINF_SUCCESS; +} + +static int vboxClipboardSvcWinDataRead(PSHCLCONTEXT pCtx, UINT uFormat, void **ppvData, uint32_t *pcbData) +{ + SHCLFORMAT fFormat = SharedClipboardWinClipboardFormatToVBox(uFormat); + LogFlowFunc(("uFormat=%u -> uFmt=0x%x\n", uFormat, fFormat)); + + if (fFormat == VBOX_SHCL_FMT_NONE) + { + LogRel2(("Shared Clipboard: Windows format %u not supported, ignoring\n", uFormat)); + return VERR_NOT_SUPPORTED; + } + + PSHCLEVENT pEvent; + int rc = ShClSvcGuestDataRequest(pCtx->pClient, fFormat, &pEvent); + if (RT_SUCCESS(rc)) + { + PSHCLEVENTPAYLOAD pPayload; + rc = ShClEventWait(pEvent, 30 * 1000, &pPayload); + if (RT_SUCCESS(rc)) + { + *ppvData = pPayload ? pPayload->pvData : NULL; + *pcbData = pPayload ? pPayload->cbData : 0; + } + + ShClEventRelease(pEvent); + } + + if (RT_FAILURE(rc)) + LogRel(("Shared Clipboard: Reading guest clipboard data for Windows host failed with %Rrc\n", rc)); + + LogFlowFuncLeaveRC(rc); + return rc; +} + +static LRESULT CALLBACK vboxClipboardSvcWinWndProcMain(PSHCLCONTEXT pCtx, + HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam) RT_NOTHROW_DEF +{ + AssertPtr(pCtx); + + LRESULT lresultRc = 0; + + const PSHCLWINCTX pWinCtx = &pCtx->Win; + + switch (uMsg) + { + case WM_CLIPBOARDUPDATE: + { + LogFunc(("WM_CLIPBOARDUPDATE\n")); + + int rc = RTCritSectEnter(&pWinCtx->CritSect); + if (RT_SUCCESS(rc)) + { + const HWND hWndClipboardOwner = GetClipboardOwner(); + + LogFunc(("WM_CLIPBOARDUPDATE: hWndClipboardOwnerUs=%p, hWndNewClipboardOwner=%p\n", + pWinCtx->hWndClipboardOwnerUs, hWndClipboardOwner)); + + if (pWinCtx->hWndClipboardOwnerUs != hWndClipboardOwner) + { + int rc2 = RTCritSectLeave(&pWinCtx->CritSect); + AssertRC(rc2); + + /* Clipboard was updated by another application, retrieve formats and report back. */ + rc = vboxClipboardSvcWinSyncInternal(pCtx); + } + else + { + int rc2 = RTCritSectLeave(&pWinCtx->CritSect); + AssertRC(rc2); + } + } + + if (RT_FAILURE(rc)) + LogRel(("Shared Clipboard: WM_CLIPBOARDUPDATE failed with %Rrc\n", rc)); + + break; + } + + case WM_CHANGECBCHAIN: + { + LogFunc(("WM_CHANGECBCHAIN\n")); + lresultRc = SharedClipboardWinHandleWMChangeCBChain(pWinCtx, hWnd, uMsg, wParam, lParam); + break; + } + + case WM_DRAWCLIPBOARD: + { + LogFunc(("WM_DRAWCLIPBOARD\n")); + + int rc = RTCritSectEnter(&pWinCtx->CritSect); + if (RT_SUCCESS(rc)) + { + const HWND hWndClipboardOwner = GetClipboardOwner(); + + LogFunc(("WM_DRAWCLIPBOARD: hWndClipboardOwnerUs=%p, hWndNewClipboardOwner=%p\n", + pWinCtx->hWndClipboardOwnerUs, hWndClipboardOwner)); + + if (pWinCtx->hWndClipboardOwnerUs != hWndClipboardOwner) + { + int rc2 = RTCritSectLeave(&pWinCtx->CritSect); + AssertRC(rc2); + + /* Clipboard was updated by another application, retrieve formats and report back. */ + rc = vboxClipboardSvcWinSyncInternal(pCtx); + } + else + { + int rc2 = RTCritSectLeave(&pWinCtx->CritSect); + AssertRC(rc2); + } + } + + lresultRc = SharedClipboardWinChainPassToNext(pWinCtx, uMsg, wParam, lParam); + break; + } + + case WM_TIMER: + { + int rc = SharedClipboardWinHandleWMTimer(pWinCtx); + AssertRC(rc); + + break; + } + + case WM_RENDERFORMAT: + { + LogFunc(("WM_RENDERFORMAT\n")); + + /* Insert the requested clipboard format data into the clipboard. */ + const UINT uFormat = (UINT)wParam; + const SHCLFORMAT fFormat = SharedClipboardWinClipboardFormatToVBox(uFormat); + LogFunc(("WM_RENDERFORMAT: uFormat=%u -> fFormat=0x%x\n", uFormat, fFormat)); + + if ( fFormat == VBOX_SHCL_FMT_NONE + || pCtx->pClient == NULL) + { + /* Unsupported clipboard format is requested. */ + LogFunc(("WM_RENDERFORMAT unsupported format requested or client is not active\n")); + SharedClipboardWinClear(); + } + else + { + void *pvData = NULL; + uint32_t cbData = 0; + int rc = vboxClipboardSvcWinDataRead(pCtx, uFormat, &pvData, &cbData); + if ( RT_SUCCESS(rc) + && pvData + && cbData) + { + /* Wrap HTML clipboard content info CF_HTML format if needed. */ + if (fFormat == VBOX_SHCL_FMT_HTML + && !SharedClipboardWinIsCFHTML((char *)pvData)) + { + char *pszWrapped = NULL; + uint32_t cbWrapped = 0; + rc = SharedClipboardWinConvertMIMEToCFHTML((char *)pvData, cbData, &pszWrapped, &cbWrapped); + if (RT_SUCCESS(rc)) + { + /* Replace buffer with wrapped data content. */ + RTMemFree(pvData); + pvData = (void *)pszWrapped; + cbData = cbWrapped; + } + else + LogRel(("Shared Clipboard: cannot convert HTML clipboard into CF_HTML format, rc=%Rrc\n", rc)); + } + + rc = SharedClipboardWinDataWrite(uFormat, pvData, cbData); + if (RT_FAILURE(rc)) + LogRel(("Shared Clipboard: Setting clipboard data for Windows host failed with %Rrc\n", rc)); + + RTMemFree(pvData); + cbData = 0; + } + + if (RT_FAILURE(rc)) + SharedClipboardWinClear(); + } + + break; + } + + case WM_RENDERALLFORMATS: + { + LogFunc(("WM_RENDERALLFORMATS\n")); + + int rc = SharedClipboardWinHandleWMRenderAllFormats(pWinCtx, hWnd); + AssertRC(rc); + + break; + } + + case SHCL_WIN_WM_REPORT_FORMATS: + { + /* Announce available formats. Do not insert data -- will be inserted in WM_RENDERFORMAT (or via IDataObject). */ + SHCLFORMATS fFormats = (uint32_t)lParam; + LogFunc(("SHCL_WIN_WM_REPORT_FORMATS: fFormats=%#xn", fFormats)); + +#ifdef VBOX_WITH_SHARED_CLIPBOARD_TRANSFERS + if (fFormats & VBOX_SHCL_FMT_URI_LIST) + { + PSHCLTRANSFER pTransfer; + int rc = shClSvcTransferStart(pCtx->pClient, + SHCLTRANSFERDIR_FROM_REMOTE, SHCLSOURCE_REMOTE, + &pTransfer); + if (RT_SUCCESS(rc)) + { + /* Create the IDataObject implementation the host OS needs and assign + * the newly created transfer to this object. */ + rc = SharedClipboardWinTransferCreate(&pCtx->Win, pTransfer); + + /* Note: The actual requesting + retrieving of data will be done in the IDataObject implementation + (ClipboardDataObjectImpl::GetData()). */ + } + else + LogRel(("Shared Clipboard: Initializing read transfer failed with %Rrc\n", rc)); + } + else + { +#endif + int rc = SharedClipboardWinClearAndAnnounceFormats(pWinCtx, fFormats, hWnd); + if (RT_FAILURE(rc)) + LogRel(("Shared Clipboard: Reporting clipboard formats %#x to Windows host failed with %Rrc\n", fFormats, rc)); + +#ifdef VBOX_WITH_SHARED_CLIPBOARD_TRANSFERS + } +#endif + LogFunc(("SHCL_WIN_WM_REPORT_FORMATS: lastErr=%ld\n", GetLastError())); + break; + } + + case WM_DESTROY: + { + LogFunc(("WM_DESTROY\n")); + + int rc = SharedClipboardWinHandleWMDestroy(pWinCtx); + AssertRC(rc); + + PostQuitMessage(0); + break; + } + + default: + lresultRc = DefWindowProc(hWnd, uMsg, wParam, lParam); + break; + } + + LogFlowFunc(("LEAVE hWnd=%p, WM_ %u -> %#zx\n", hWnd, uMsg, lresultRc)); + return lresultRc; +} + +/** + * Static helper function for having a per-client proxy window instances. + */ +static LRESULT CALLBACK vboxClipboardSvcWinWndProcInstance(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam) RT_NOTHROW_DEF +{ + LONG_PTR pUserData = GetWindowLongPtr(hWnd, GWLP_USERDATA); + AssertPtrReturn(pUserData, 0); + + PSHCLCONTEXT pCtx = reinterpret_cast<PSHCLCONTEXT>(pUserData); + if (pCtx) + return vboxClipboardSvcWinWndProcMain(pCtx, hWnd, uMsg, wParam, lParam); + + return 0; +} + +/** + * Static helper function for routing Windows messages to a specific + * proxy window instance. + */ +static LRESULT CALLBACK vboxClipboardSvcWinWndProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam) RT_NOTHROW_DEF +{ + /* Note: WM_NCCREATE is not the first ever message which arrives, but + * early enough for us. */ + if (uMsg == WM_NCCREATE) + { + LogFlowFunc(("WM_NCCREATE\n")); + + LPCREATESTRUCT pCS = (LPCREATESTRUCT)lParam; + AssertPtr(pCS); + SetWindowLongPtr(hWnd, GWLP_USERDATA, (LONG_PTR)pCS->lpCreateParams); + SetWindowLongPtr(hWnd, GWLP_WNDPROC, (LONG_PTR)vboxClipboardSvcWinWndProcInstance); + + return vboxClipboardSvcWinWndProcInstance(hWnd, uMsg, wParam, lParam); + } + + /* No window associated yet. */ + return DefWindowProc(hWnd, uMsg, wParam, lParam); +} + +DECLCALLBACK(int) vboxClipboardSvcWinThread(RTTHREAD hThreadSelf, void *pvUser) +{ + LogFlowFuncEnter(); + + bool fThreadSignalled = false; + + const PSHCLCONTEXT pCtx = (PSHCLCONTEXT)pvUser; + AssertPtr(pCtx); + const PSHCLWINCTX pWinCtx = &pCtx->Win; + + HINSTANCE hInstance = (HINSTANCE)GetModuleHandle(NULL); + + /* Register the Window Class. */ + WNDCLASS wc; + RT_ZERO(wc); + + wc.style = CS_NOCLOSE; + wc.lpfnWndProc = vboxClipboardSvcWinWndProc; + wc.hInstance = hInstance; + wc.hbrBackground = (HBRUSH)(COLOR_BACKGROUND + 1); + + /* Register an unique wnd class name. */ + char szWndClassName[32]; + RTStrPrintf2(szWndClassName, sizeof(szWndClassName), + "%s-%RU64", SHCL_WIN_WNDCLASS_NAME, RTThreadGetNative(hThreadSelf)); + wc.lpszClassName = szWndClassName; + + int rc; + + ATOM atomWindowClass = RegisterClass(&wc); + if (atomWindowClass == 0) + { + LogFunc(("Failed to register window class\n")); + rc = VERR_NOT_SUPPORTED; + } + else + { + /* Create a window and make it a clipboard viewer. */ + pWinCtx->hWnd = CreateWindowEx(WS_EX_TOOLWINDOW | WS_EX_TRANSPARENT | WS_EX_TOPMOST, + szWndClassName, szWndClassName, + WS_POPUPWINDOW, + -200, -200, 100, 100, NULL, NULL, hInstance, pCtx /* lpParam */); + if (pWinCtx->hWnd == NULL) + { + LogFunc(("Failed to create window\n")); + rc = VERR_NOT_SUPPORTED; + } + else + { + SetWindowPos(pWinCtx->hWnd, HWND_TOPMOST, -200, -200, 0, 0, + SWP_NOACTIVATE | SWP_HIDEWINDOW | SWP_NOCOPYBITS | SWP_NOREDRAW | SWP_NOSIZE); + + rc = SharedClipboardWinChainAdd(&pCtx->Win); + if (RT_SUCCESS(rc)) + { + if (!SharedClipboardWinIsNewAPI(&pWinCtx->newAPI)) + pWinCtx->oldAPI.timerRefresh = SetTimer(pWinCtx->hWnd, 0, 10 * 1000, NULL); + } + +#ifdef VBOX_WITH_SHARED_CLIPBOARD_TRANSFERS + if (RT_SUCCESS(rc)) + { + HRESULT hr = OleInitialize(NULL); + if (FAILED(hr)) + { + LogRel(("Shared Clipboard: Initializing window thread OLE failed (%Rhrc) -- file transfers unavailable\n", hr)); + /* Not critical, the rest of the clipboard might work. */ + } + else + LogRel(("Shared Clipboard: Initialized window thread OLE\n")); + } +#endif + int rc2 = RTThreadUserSignal(hThreadSelf); + AssertRC(rc2); + + fThreadSignalled = true; + + MSG msg; + BOOL msgret = 0; + while ((msgret = GetMessage(&msg, NULL, 0, 0)) > 0) + { + TranslateMessage(&msg); + DispatchMessage(&msg); + } + + /* + * Window procedure can return error, * but this is exceptional situation that should be + * identified in testing. + */ + Assert(msgret >= 0); + LogFunc(("Message loop finished. GetMessage returned %d, message id: %d \n", msgret, msg.message)); + +#ifdef VBOX_WITH_SHARED_CLIPBOARD_TRANSFERS + OleSetClipboard(NULL); /* Make sure to flush the clipboard on destruction. */ + OleUninitialize(); +#endif + } + } + + pWinCtx->hWnd = NULL; + + if (atomWindowClass != 0) + { + UnregisterClass(szWndClassName, hInstance); + atomWindowClass = 0; + } + + if (!fThreadSignalled) + { + int rc2 = RTThreadUserSignal(hThreadSelf); + AssertRC(rc2); + } + + LogFlowFuncLeaveRC(rc); + return rc; +} + +/** + * Synchronizes the host and the guest clipboard formats by sending all supported host clipboard + * formats to the guest. + * + * @returns VBox status code, VINF_NO_CHANGE if no synchronization was required. + * @param pCtx Clipboard context to synchronize. + */ +static int vboxClipboardSvcWinSyncInternal(PSHCLCONTEXT pCtx) +{ + AssertPtrReturn(pCtx, VERR_INVALID_POINTER); + + LogFlowFuncEnter(); + + int rc; + + if (pCtx->pClient) + { + SHCLFORMATS fFormats = 0; + rc = SharedClipboardWinGetFormats(&pCtx->Win, &fFormats); + if ( RT_SUCCESS(rc) + && fFormats != VBOX_SHCL_FMT_NONE /** @todo r=bird: BUGBUG: revisit this. */ + && ShClSvcIsBackendActive()) + rc = ShClSvcHostReportFormats(pCtx->pClient, fFormats); + } + else /* If we don't have any client data (yet), bail out. */ + rc = VINF_NO_CHANGE; + + LogFlowFuncLeaveRC(rc); + return rc; +} + +/* + * Public platform dependent functions. + */ + +int ShClBackendInit(PSHCLBACKEND pBackend, VBOXHGCMSVCFNTABLE *pTable) +{ + RT_NOREF(pBackend, pTable); +#ifdef VBOX_WITH_SHARED_CLIPBOARD_TRANSFERS + HRESULT hr = OleInitialize(NULL); + if (FAILED(hr)) + { + LogRel(("Shared Clipboard: Initializing OLE failed (%Rhrc) -- file transfers unavailable\n", hr)); + /* Not critical, the rest of the clipboard might work. */ + } + else + LogRel(("Shared Clipboard: Initialized OLE\n")); +#endif + + return VINF_SUCCESS; +} + +void ShClBackendDestroy(PSHCLBACKEND pBackend) +{ + RT_NOREF(pBackend); + +#ifdef VBOX_WITH_SHARED_CLIPBOARD_TRANSFERS + OleSetClipboard(NULL); /* Make sure to flush the clipboard on destruction. */ + OleUninitialize(); +#endif +} + +int ShClBackendConnect(PSHCLBACKEND pBackend, PSHCLCLIENT pClient, bool fHeadless) +{ + RT_NOREF(pBackend, fHeadless); + + LogFlowFuncEnter(); + + int rc; + + PSHCLCONTEXT pCtx = (PSHCLCONTEXT)RTMemAllocZ(sizeof(SHCLCONTEXT)); + if (pCtx) + { + rc = SharedClipboardWinCtxInit(&pCtx->Win); + if (RT_SUCCESS(rc)) + { + rc = RTThreadCreate(&pCtx->hThread, vboxClipboardSvcWinThread, pCtx /* pvUser */, _64K /* Stack size */, + RTTHREADTYPE_IO, RTTHREADFLAGS_WAITABLE, "SHCLIP"); + if (RT_SUCCESS(rc)) + { + int rc2 = RTThreadUserWait(pCtx->hThread, 30 * 1000 /* Timeout in ms */); + AssertRC(rc2); + } + } + + pClient->State.pCtx = pCtx; + pClient->State.pCtx->pClient = pClient; + } + else + rc = VERR_NO_MEMORY; + + LogFlowFuncLeaveRC(rc); + return rc; +} + +int ShClBackendSync(PSHCLBACKEND pBackend, PSHCLCLIENT pClient) +{ + RT_NOREF(pBackend); + + /* Sync the host clipboard content with the client. */ + return vboxClipboardSvcWinSyncInternal(pClient->State.pCtx); +} + +int ShClBackendDisconnect(PSHCLBACKEND pBackend, PSHCLCLIENT pClient) +{ + RT_NOREF(pBackend); + + AssertPtrReturn(pClient, VERR_INVALID_POINTER); + + LogFlowFuncEnter(); + + int rc = VINF_SUCCESS; + + PSHCLCONTEXT pCtx = pClient->State.pCtx; + if (pCtx) + { + if (pCtx->Win.hWnd) + PostMessage(pCtx->Win.hWnd, WM_DESTROY, 0 /* wParam */, 0 /* lParam */); + + if (pCtx->hThread != NIL_RTTHREAD) + { + LogFunc(("Waiting for thread to terminate ...\n")); + + /* Wait for the window thread to terminate. */ + rc = RTThreadWait(pCtx->hThread, 30 * 1000 /* Timeout in ms */, NULL); + if (RT_FAILURE(rc)) + LogRel(("Shared Clipboard: Waiting for window thread termination failed with rc=%Rrc\n", rc)); + + pCtx->hThread = NIL_RTTHREAD; + } + + SharedClipboardWinCtxDestroy(&pCtx->Win); + + if (RT_SUCCESS(rc)) + { + RTMemFree(pCtx); + pCtx = NULL; + + pClient->State.pCtx = NULL; + } + } + + LogFlowFuncLeaveRC(rc); + return rc; +} + +int ShClBackendReportFormats(PSHCLBACKEND pBackend, PSHCLCLIENT pClient, SHCLFORMATS fFormats) +{ + RT_NOREF(pBackend); + + AssertPtrReturn(pClient, VERR_INVALID_POINTER); + + PSHCLCONTEXT pCtx = pClient->State.pCtx; + AssertPtrReturn(pCtx, VERR_INVALID_POINTER); + + LogFlowFunc(("fFormats=0x%x, hWnd=%p\n", fFormats, pCtx->Win.hWnd)); + + /* + * The guest announced formats. Forward to the window thread. + */ + PostMessage(pCtx->Win.hWnd, SHCL_WIN_WM_REPORT_FORMATS, + 0 /* wParam */, fFormats /* lParam */); + + + LogFlowFuncLeaveRC(VINF_SUCCESS); + return VINF_SUCCESS; +} + +int ShClBackendReadData(PSHCLBACKEND pBackend, PSHCLCLIENT pClient, PSHCLCLIENTCMDCTX pCmdCtx, + SHCLFORMAT uFmt, void *pvData, uint32_t cbData, uint32_t *pcbActual) +{ + AssertPtrReturn(pClient, VERR_INVALID_POINTER); + AssertPtrReturn(pCmdCtx, VERR_INVALID_POINTER); + AssertPtrReturn(pvData, VERR_INVALID_POINTER); + AssertPtrReturn(pcbActual, VERR_INVALID_POINTER); + + RT_NOREF(pBackend, pCmdCtx); + + AssertPtrReturn(pClient->State.pCtx, VERR_INVALID_POINTER); + + LogFlowFunc(("uFmt=%#x\n", uFmt)); + + HANDLE hClip = NULL; + + const PSHCLWINCTX pWinCtx = &pClient->State.pCtx->Win; + + /* + * The guest wants to read data in the given format. + */ + int rc = SharedClipboardWinOpen(pWinCtx->hWnd); + if (RT_SUCCESS(rc)) + { + if (uFmt & VBOX_SHCL_FMT_BITMAP) + { + LogFunc(("CF_DIB\n")); + hClip = GetClipboardData(CF_DIB); + if (hClip != NULL) + { + LPVOID lp = GlobalLock(hClip); + if (lp != NULL) + { + rc = vboxClipboardSvcWinDataGet(VBOX_SHCL_FMT_BITMAP, lp, GlobalSize(hClip), + pvData, cbData, pcbActual); + GlobalUnlock(hClip); + } + else + { + hClip = NULL; + } + } + } + else if (uFmt & VBOX_SHCL_FMT_UNICODETEXT) + { + LogFunc(("CF_UNICODETEXT\n")); + hClip = GetClipboardData(CF_UNICODETEXT); + if (hClip != NULL) + { + LPWSTR uniString = (LPWSTR)GlobalLock(hClip); + if (uniString != NULL) + { + rc = vboxClipboardSvcWinDataGet(VBOX_SHCL_FMT_UNICODETEXT, uniString, (lstrlenW(uniString) + 1) * 2, + pvData, cbData, pcbActual); + GlobalUnlock(hClip); + } + else + { + hClip = NULL; + } + } + } + else if (uFmt & VBOX_SHCL_FMT_HTML) + { + LogFunc(("SHCL_WIN_REGFMT_HTML\n")); + UINT uRegFmt = RegisterClipboardFormat(SHCL_WIN_REGFMT_HTML); + if (uRegFmt != 0) + { + hClip = GetClipboardData(uRegFmt); + if (hClip != NULL) + { + LPVOID lp = GlobalLock(hClip); + if (lp != NULL) + { + rc = vboxClipboardSvcWinDataGet(VBOX_SHCL_FMT_HTML, lp, GlobalSize(hClip), + pvData, cbData, pcbActual); +#ifdef LOG_ENABLED + if (RT_SUCCESS(rc)) + { + LogFlowFunc(("Raw HTML clipboard data from host:\n")); + ShClDbgDumpHtml((char *)pvData, cbData); + } +#endif + GlobalUnlock(hClip); + } + else + { + hClip = NULL; + } + } + } + } +#ifdef VBOX_WITH_SHARED_CLIPBOARD_TRANSFERS + else if (uFmt & VBOX_SHCL_FMT_URI_LIST) + { + AssertFailed(); /** @todo */ + } +#endif /* VBOX_WITH_SHARED_CLIPBOARD_TRANSFERS */ + SharedClipboardWinClose(); + } + + if (hClip == NULL) /* Empty data is not fatal. */ + { + /* Reply with empty data. */ + vboxClipboardSvcWinDataGet(0, NULL, 0, pvData, cbData, pcbActual); + } + + if (RT_FAILURE(rc)) + LogRel(("Shared Clipboard: Error reading host clipboard data in format %#x from Windows, rc=%Rrc\n", uFmt, rc)); + + LogFlowFuncLeaveRC(rc); + return rc; +} + +int ShClBackendWriteData(PSHCLBACKEND pBackend, PSHCLCLIENT pClient, PSHCLCLIENTCMDCTX pCmdCtx, + SHCLFORMAT uFormat, void *pvData, uint32_t cbData) +{ + RT_NOREF(pBackend, pClient, pCmdCtx, uFormat, pvData, cbData); + + LogFlowFuncEnter(); + + /* Nothing to do here yet. */ + + LogFlowFuncLeave(); + return VINF_SUCCESS; +} + +#ifdef VBOX_WITH_SHARED_CLIPBOARD_TRANSFERS +int ShClBackendTransferCreate(PSHCLBACKEND pBackend, PSHCLCLIENT pClient, PSHCLTRANSFER pTransfer) +{ + RT_NOREF(pBackend, pClient, pTransfer); + + LogFlowFuncEnter(); + + return VINF_SUCCESS; +} + +int ShClBackendTransferDestroy(PSHCLBACKEND pBackend, PSHCLCLIENT pClient, PSHCLTRANSFER pTransfer) +{ + RT_NOREF(pBackend); + + LogFlowFuncEnter(); + + SharedClipboardWinTransferDestroy(&pClient->State.pCtx->Win, pTransfer); + + return VINF_SUCCESS; +} + +int ShClBackendTransferGetRoots(PSHCLBACKEND pBackend, PSHCLCLIENT pClient, PSHCLTRANSFER pTransfer) +{ + RT_NOREF(pBackend); + + LogFlowFuncEnter(); + + const PSHCLWINCTX pWinCtx = &pClient->State.pCtx->Win; + + int rc = SharedClipboardWinGetRoots(pWinCtx, pTransfer); + + LogFlowFuncLeaveRC(rc); + return rc; +} +#endif /* VBOX_WITH_SHARED_CLIPBOARD_TRANSFERS */ + |