Main/src-client/GuestDnDTargetImpl.cpp

	GuestDnDTargetImpl.cpp revision c8e3a310b008bd03e42089b1e7e8adc16daaf077
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync/* $Id$ */
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync/** @file
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync * VBox Console COM Class implementation - Guest drag'n drop target.
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync */
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync/*
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync * Copyright (C) 2014 Oracle Corporation
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync *
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync * This file is part of VirtualBox Open Source Edition (OSE), as
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync * available from http://www.virtualbox.org. This file is free software;
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync * you can redistribute it and/or modify it under the terms of the GNU
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync * General Public License (GPL) as published by the Free Software
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync * Foundation, in version 2 as it comes in the "COPYING" file of the
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync */
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync/*******************************************************************************
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync*   Header Files                                                               *
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync*******************************************************************************/
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync#include "GuestImpl.h"
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync#include "GuestDnDTargetImpl.h"
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync#include "Global.h"
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync#include "AutoCaller.h"
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync#include <iprt/cpp/utils.h> /* For unconst(). */
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync#include <VBox/com/array.h>
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync#include <VBox/HostServices/DragAndDropSvc.h>
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync#ifdef LOG_GROUP
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync #undef LOG_GROUP
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync#endif
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync#define LOG_GROUP LOG_GROUP_GUEST_DND
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync#include <VBox/log.h>
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync// constructor / destructor
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync/////////////////////////////////////////////////////////////////////////////
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync
d23a94a28e59f64d02905f20bb8f3b23f1c9eb17vboxsyncDEFINE_EMPTY_CTOR_DTOR(GuestDnDTarget)
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync
5c1381fc884d30a749517579368ff6cb4b43e809vboxsyncHRESULT GuestDnDTarget::FinalConstruct(void)
d23a94a28e59f64d02905f20bb8f3b23f1c9eb17vboxsync{
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync    LogFlowThisFunc(("\n"));
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync    return BaseFinalConstruct();
d23a94a28e59f64d02905f20bb8f3b23f1c9eb17vboxsync}
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync
5c1381fc884d30a749517579368ff6cb4b43e809vboxsyncvoid GuestDnDTarget::FinalRelease(void)
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync{
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync    LogFlowThisFuncEnter();
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync    uninit();
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync    BaseFinalRelease();
d23a94a28e59f64d02905f20bb8f3b23f1c9eb17vboxsync    LogFlowThisFuncLeave();
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync}
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync
d23a94a28e59f64d02905f20bb8f3b23f1c9eb17vboxsync// public initializer/uninitializer for internal purposes only
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync/////////////////////////////////////////////////////////////////////////////
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync
d23a94a28e59f64d02905f20bb8f3b23f1c9eb17vboxsyncint GuestDnDTarget::init(const ComObjPtr<Guest>& pGuest)
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync{
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync    LogFlowThisFuncEnter();
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync    /* Enclose the state transition NotReady->InInit->Ready. */
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync    AutoInitSpan autoInitSpan(this);
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync    AssertReturn(autoInitSpan.isOk(), E_FAIL);
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync    unconst(m_pGuest) = pGuest;
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync    /* Confirm a successful initialization when it's the case. */
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync    autoInitSpan.setSucceeded();
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync    return VINF_SUCCESS;
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync}
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync/**
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync * Uninitializes the instance.
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync * Called from FinalRelease().
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync */
5c1381fc884d30a749517579368ff6cb4b43e809vboxsyncvoid GuestDnDTarget::uninit(void)
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync{
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync    LogFlowThisFunc(("\n"));
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync    /* Enclose the state transition Ready->InUninit->NotReady. */
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync    AutoUninitSpan autoUninitSpan(this);
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync    if (autoUninitSpan.uninitDone())
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync        return;
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync}
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync// implementation of wrapped private getters/setters for attributes
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync/////////////////////////////////////////////////////////////////////////////
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync
5c1381fc884d30a749517579368ff6cb4b43e809vboxsyncHRESULT GuestDnDTarget::enter(ULONG aScreenId, ULONG aX, ULONG aY,
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync                              DnDAction_T aDefaultAction,
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync                              const std::vector<DnDAction_T> &aAllowedActions,
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync                              const std::vector<com::Utf8Str> &aFormats,
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync                              DnDAction_T *aResultAction)
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync{
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync#if !defined(VBOX_WITH_DRAG_AND_DROP) || !defined(VBOX_WITH_DRAG_AND_DROP_GH)
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync    ReturnComNotImplemented();
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync#else /* VBOX_WITH_DRAG_AND_DROP */
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync    /* Input validation. */
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync    if (aDefaultAction == DnDAction_Ignore)
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync        return setError(E_INVALIDARG, tr("No default action specified"));
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync    if (!aAllowedActions.size())
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync        return setError(E_INVALIDARG, tr("Number of allowed actions is empty"));
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync    if (!aFormats.size())
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync        return setError(E_INVALIDARG, tr("Number of supported formats is empty"));
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync    AutoCaller autoCaller(this);
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync    if (FAILED(autoCaller.rc())) return autoCaller.rc();
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync    /* Default action is ignoring. */
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync    DnDAction_T resAction = DnDAction_Ignore;
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync    /* Check & convert the drag & drop actions */
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync    uint32_t uDefAction      = 0;
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync    uint32_t uAllowedActions = 0;
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync    GuestDnD::toHGCMActions(aDefaultAction, &uDefAction,
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync                            aAllowedActions, &uAllowedActions);
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync    /* If there is no usable action, ignore this request. */
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync    if (isDnDIgnoreAction(uDefAction))
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync        return S_OK;
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync    /* Make a flat data string out of the supported format list. */
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync    Utf8Str strFormats = GuestDnD::toFormatString(GuestDnDInst()->supportedFormats(),
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync                                                  aFormats);
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync    /* If there is no valid supported format, ignore this request. */
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync    if (strFormats.isEmpty())
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync        return S_OK;
d23a94a28e59f64d02905f20bb8f3b23f1c9eb17vboxsync
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync    HRESULT hr = S_OK;
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync
d23a94a28e59f64d02905f20bb8f3b23f1c9eb17vboxsync    /* Adjust the coordinates in a multi-monitor setup. */
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync    int rc = GuestDnDInst()->adjustScreenCoordinates(aScreenId, &aX, &aY);
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync    if (RT_SUCCESS(rc))
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync    {
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync        VBOXHGCMSVCPARM paParms[8];
d23a94a28e59f64d02905f20bb8f3b23f1c9eb17vboxsync        int i = 0;
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync        paParms[i++].setUInt32(aScreenId);
d23a94a28e59f64d02905f20bb8f3b23f1c9eb17vboxsync        paParms[i++].setUInt32(aX);
d23a94a28e59f64d02905f20bb8f3b23f1c9eb17vboxsync        paParms[i++].setUInt32(aY);
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync        paParms[i++].setUInt32(uDefAction);
d23a94a28e59f64d02905f20bb8f3b23f1c9eb17vboxsync        paParms[i++].setUInt32(uAllowedActions);
d23a94a28e59f64d02905f20bb8f3b23f1c9eb17vboxsync        paParms[i++].setPointer((void*)strFormats.c_str(), strFormats.length() + 1);
d23a94a28e59f64d02905f20bb8f3b23f1c9eb17vboxsync        paParms[i++].setUInt32(strFormats.length() + 1);
d23a94a28e59f64d02905f20bb8f3b23f1c9eb17vboxsync
d23a94a28e59f64d02905f20bb8f3b23f1c9eb17vboxsync        rc = GuestDnDInst()->hostCall(DragAndDropSvc::HOST_DND_HG_EVT_ENTER,
d23a94a28e59f64d02905f20bb8f3b23f1c9eb17vboxsync                                      i, paParms);
d23a94a28e59f64d02905f20bb8f3b23f1c9eb17vboxsync        if (RT_SUCCESS(rc))
d23a94a28e59f64d02905f20bb8f3b23f1c9eb17vboxsync        {
d23a94a28e59f64d02905f20bb8f3b23f1c9eb17vboxsync            GuestDnDResponse *pResp = GuestDnDInst()->response();
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync            if (pResp && RT_SUCCESS(pResp->waitForGuestResponse()))
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync                resAction = GuestDnD::toMainAction(pResp->defAction());
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync        }
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync    }
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync    if (aResultAction)
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync        *aResultAction = resAction;
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync
5c1381fc884d30a749517579368ff6cb4b43e809vboxsync    LogFlowFunc(("hr=%Rhrc, resAction=%ld\n", hr, resAction));
    return hr;
#endif /* VBOX_WITH_DRAG_AND_DROP */
}

HRESULT GuestDnDTarget::move(ULONG aScreenId, ULONG aX, ULONG aY,
                             DnDAction_T aDefaultAction,
                             const std::vector<DnDAction_T> &aAllowedActions,
                             const std::vector<com::Utf8Str> &aFormats,
                             DnDAction_T *aResultAction)
{
#if !defined(VBOX_WITH_DRAG_AND_DROP) || !defined(VBOX_WITH_DRAG_AND_DROP_GH)
    ReturnComNotImplemented();
#else /* VBOX_WITH_DRAG_AND_DROP */

    /* Input validation. */

    AutoCaller autoCaller(this);
    if (FAILED(autoCaller.rc())) return autoCaller.rc();

    /* Default action is ignoring. */
    DnDAction_T resAction = DnDAction_Ignore;

    /* Check & convert the drag & drop actions. */
    uint32_t uDefAction      = 0;
    uint32_t uAllowedActions = 0;
    GuestDnD::toHGCMActions(aDefaultAction, &uDefAction,
                            aAllowedActions, &uAllowedActions);
    /* If there is no usable action, ignore this request. */
    if (isDnDIgnoreAction(uDefAction))
        return S_OK;

    /* Make a flat data string out of the supported format list. */
    RTCString strFormats = GuestDnD::toFormatString(GuestDnDInst()->supportedFormats(),
                                                    aFormats);
    /* If there is no valid supported format, ignore this request. */
    if (strFormats.isEmpty())
        return S_OK;

    HRESULT hr = S_OK;

    int rc = GuestDnDInst()->adjustScreenCoordinates(aScreenId, &aX, &aY);
    if (RT_SUCCESS(rc))
    {
        VBOXHGCMSVCPARM paParms[8];
        int i = 0;
        paParms[i++].setUInt32(aScreenId);
        paParms[i++].setUInt32(aX);
        paParms[i++].setUInt32(aY);
        paParms[i++].setUInt32(uDefAction);
        paParms[i++].setUInt32(uAllowedActions);
        paParms[i++].setPointer((void*)strFormats.c_str(), strFormats.length() + 1);
        paParms[i++].setUInt32(strFormats.length() + 1);

        rc = GuestDnDInst()->hostCall(DragAndDropSvc::HOST_DND_HG_EVT_MOVE,
                                      i, paParms);
        if (RT_SUCCESS(rc))
        {
            GuestDnDResponse *pResp = GuestDnDInst()->response();
            if (pResp && RT_SUCCESS(pResp->waitForGuestResponse()))
                resAction = GuestDnD::toMainAction(pResp->defAction());
        }
    }

    if (aResultAction)
        *aResultAction = resAction;

    LogFlowFunc(("hr=%Rhrc, *pResultAction=%ld\n", hr, resAction));
    return hr;
#endif /* VBOX_WITH_DRAG_AND_DROP */
}

HRESULT GuestDnDTarget::leave(ULONG uScreenId)
{
#if !defined(VBOX_WITH_DRAG_AND_DROP) || !defined(VBOX_WITH_DRAG_AND_DROP_GH)
    ReturnComNotImplemented();
#else /* VBOX_WITH_DRAG_AND_DROP */

    AutoCaller autoCaller(this);
    if (FAILED(autoCaller.rc())) return autoCaller.rc();

    HRESULT hr = S_OK;
    int rc = GuestDnDInst()->hostCall(DragAndDropSvc::HOST_DND_HG_EVT_LEAVE,
                                      0 /* cParms */, NULL /* paParms */);
    if (RT_SUCCESS(rc))
    {
        GuestDnDResponse *pResp = GuestDnDInst()->response();
        if (pResp)
            pResp->waitForGuestResponse();
    }

    LogFlowFunc(("hr=%Rhrc\n", hr));
    return hr;
#endif /* VBOX_WITH_DRAG_AND_DROP */
}

HRESULT GuestDnDTarget::drop(ULONG aScreenId, ULONG aX, ULONG aY,
                             DnDAction_T aDefaultAction,
                             const std::vector<DnDAction_T> &aAllowedActions,
                             const std::vector<com::Utf8Str> &aFormats,
                             com::Utf8Str &aFormat, DnDAction_T *aResultAction)
{
#if !defined(VBOX_WITH_DRAG_AND_DROP) || !defined(VBOX_WITH_DRAG_AND_DROP_GH)
    ReturnComNotImplemented();
#else /* VBOX_WITH_DRAG_AND_DROP */

    /* Input validation. */

    /* Everything else is optional. */

    AutoCaller autoCaller(this);
    if (FAILED(autoCaller.rc())) return autoCaller.rc();

    /* Default action is ignoring. */
    DnDAction_T resAction = DnDAction_Ignore;

    /* Check & convert the drag & drop actions. */
    uint32_t uDefAction      = 0;
    uint32_t uAllowedActions = 0;
    GuestDnD::toHGCMActions(aDefaultAction, &uDefAction,
                            aAllowedActions, &uAllowedActions);
    /* If there is no usable action, ignore this request. */
    if (isDnDIgnoreAction(uDefAction))
        return S_OK;

    /* Make a flat data string out of the supported format list. */
    Utf8Str strFormats = GuestDnD::toFormatString(GuestDnDInst()->supportedFormats(),
                                                  aFormats);
    /* If there is no valid supported format, ignore this request. */
    if (strFormats.isEmpty())
        return S_OK;

    HRESULT hr = S_OK;

    /* Adjust the coordinates in a multi-monitor setup. */
    int rc = GuestDnDInst()->adjustScreenCoordinates(aScreenId, &aX, &aY);
    if (RT_SUCCESS(rc))
    {
        VBOXHGCMSVCPARM paParms[8];
        int i = 0;
        paParms[i++].setUInt32(aScreenId);
        paParms[i++].setUInt32(aX);
        paParms[i++].setUInt32(aY);
        paParms[i++].setUInt32(uDefAction);
        paParms[i++].setUInt32(uAllowedActions);
        paParms[i++].setPointer((void*)strFormats.c_str(), strFormats.length() + 1);
        paParms[i++].setUInt32(strFormats.length() + 1);

        rc = GuestDnDInst()->hostCall(DragAndDropSvc::HOST_DND_HG_EVT_DROPPED,
                                      i, paParms);
        if (RT_SUCCESS(rc))
        {
            GuestDnDResponse *pResp = GuestDnDInst()->response();
            if (pResp && RT_SUCCESS(pResp->waitForGuestResponse()))
            {
                resAction = GuestDnD::toMainAction(pResp->defAction());
                aFormat = pResp->format();

                LogFlowFunc(("resFormat=%s, resAction=%RU32\n",
                             pResp->format().c_str(), pResp->defAction()));
            }
        }
    }

    if (aResultAction)
        *aResultAction = resAction;

    return hr;
#endif /* VBOX_WITH_DRAG_AND_DROP */
}

HRESULT GuestDnDTarget::sendData(ULONG aScreenId,
                                 const com::Utf8Str &aFormat,
                                 const std::vector<BYTE> &aData,
                                 ComPtr<IProgress> &aProgress)
{
#if !defined(VBOX_WITH_DRAG_AND_DROP) || !defined(VBOX_WITH_DRAG_AND_DROP_GH)
    ReturnComNotImplemented();
#else /* VBOX_WITH_DRAG_AND_DROP */

    /* Input validation */


    AutoCaller autoCaller(this);
    if (FAILED(autoCaller.rc())) return autoCaller.rc();

    HRESULT hr = S_OK;

    VBOXHGCMSVCPARM paParms[8];
    int i = 0;
    paParms[i++].setUInt32(aScreenId);
    paParms[i++].setPointer((void *)aFormat.c_str(), (uint32_t)aFormat.length() + 1);
    paParms[i++].setUInt32((uint32_t)aFormat.length() + 1);
    paParms[i++].setPointer((void *)aData.front(), (uint32_t)aData.size());
    paParms[i++].setUInt32((uint32_t)aData.size());

    GuestDnDResponse *pResp = GuestDnDInst()->response();
    if (pResp)
    {
        /* Reset any old progress status. */
        pResp->resetProgress(m_pGuest);

        /* Note: The actual data transfer of files/directoies is performed by the
         *       DnD host service. */
        int rc = GuestDnDInst()->hostCall(DragAndDropSvc::HOST_DND_HG_SND_DATA,
                                          i, paParms);
        if (RT_SUCCESS(rc))
        {
            /* Query the progress object to the caller. */
            if (aProgress)
                pResp->queryProgressTo(aProgress.asOutParam());
        }
    }

    return hr;
#endif /* VBOX_WITH_DRAG_AND_DROP */
}