1 files changed, 205 insertions, 0 deletions
diff --git a/src/VBox/GuestHost/SharedClipboard/ClipboardEnumFormatEtcImpl-win.cpp b/src/VBox/GuestHost/SharedClipboard/ClipboardEnumFormatEtcImpl-win.cpp
new file mode 100644
index 00000000..330ca7c8
--- /dev/null
+++ b/src/VBox/GuestHost/SharedClipboard/ClipboardEnumFormatEtcImpl-win.cpp
@@ -0,0 +1,205 @@
+/* $Id: ClipboardEnumFormatEtcImpl-win.cpp $ */
+/** @file
+ * ClipboardEnumFormatEtcImpl-win.cpp - Shared Clipboard IEnumFORMATETC ("Format et cetera") implementation.
+ */
+
+/*
+ * Copyright (C) 2013-2022 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                                                                                                                 *
+*********************************************************************************************************************************/
+#include <new> /* For bad_alloc. */
+
+#define LOG_GROUP LOG_GROUP_SHARED_CLIPBOARD
+#include <VBox/GuestHost/SharedClipboard-win.h>
+
+#include <iprt/win/windows.h>
+
+#include <VBox/log.h>
+
+
+
+SharedClipboardWinEnumFormatEtc::SharedClipboardWinEnumFormatEtc(LPFORMATETC pFormatEtc, ULONG cFormats)
+    : m_lRefCount(1),
+      m_nIndex(0)
+{
+    HRESULT hr;
+
+    try
+    {
+        LogFlowFunc(("pFormatEtc=%p, cFormats=%RU32\n", pFormatEtc, cFormats));
+        m_pFormatEtc  = new FORMATETC[cFormats];
+
+        for (ULONG i = 0; i < cFormats; i++)
+        {
+            LogFlowFunc(("Format %RU32: cfFormat=%RI16, tyMed=%RU32, dwAspect=%RU32\n",
+                         i, pFormatEtc[i].cfFormat, pFormatEtc[i].tymed, pFormatEtc[i].dwAspect));
+
+            SharedClipboardWinDataObject::logFormat(pFormatEtc[i].cfFormat);
+
+            SharedClipboardWinEnumFormatEtc::CopyFormat(&m_pFormatEtc[i], &pFormatEtc[i]);
+        }
+
+        m_nNumFormats = cFormats;
+        hr = S_OK;
+    }
+    catch (std::bad_alloc &)
+    {
+        hr = E_OUTOFMEMORY;
+    }
+
+    LogFlowFunc(("hr=%Rhrc\n", hr));
+}
+
+SharedClipboardWinEnumFormatEtc::~SharedClipboardWinEnumFormatEtc(void)
+{
+    if (m_pFormatEtc)
+    {
+        for (ULONG i = 0; i < m_nNumFormats; i++)
+        {
+            if(m_pFormatEtc[i].ptd)
+                CoTaskMemFree(m_pFormatEtc[i].ptd);
+        }
+
+        delete[] m_pFormatEtc;
+        m_pFormatEtc = NULL;
+    }
+
+    LogFlowFunc(("m_lRefCount=%RI32\n", m_lRefCount));
+}
+
+/*
+ * IUnknown methods.
+ */
+
+STDMETHODIMP_(ULONG) SharedClipboardWinEnumFormatEtc::AddRef(void)
+{
+    return InterlockedIncrement(&m_lRefCount);
+}
+
+STDMETHODIMP_(ULONG) SharedClipboardWinEnumFormatEtc::Release(void)
+{
+    LONG lCount = InterlockedDecrement(&m_lRefCount);
+    if (lCount == 0)
+    {
+        LogFlowFunc(("Delete\n"));
+        delete this;
+        return 0;
+    }
+
+    return lCount;
+}
+
+STDMETHODIMP SharedClipboardWinEnumFormatEtc::QueryInterface(REFIID iid, void **ppvObject)
+{
+    if (   iid == IID_IEnumFORMATETC
+        || iid == IID_IUnknown)
+    {
+        AddRef();
+        *ppvObject = this;
+        return S_OK;
+    }
+
+    *ppvObject = 0;
+    return E_NOINTERFACE;
+}
+
+STDMETHODIMP SharedClipboardWinEnumFormatEtc::Next(ULONG cFormats, LPFORMATETC pFormatEtc, ULONG *pcFetched)
+{
+    ULONG ulCopied  = 0;
+
+    if(cFormats == 0 || pFormatEtc == 0)
+        return E_INVALIDARG;
+
+    while (   m_nIndex < m_nNumFormats
+           && ulCopied < cFormats)
+    {
+        SharedClipboardWinEnumFormatEtc::CopyFormat(&pFormatEtc[ulCopied], &m_pFormatEtc[m_nIndex]);
+        ulCopied++;
+        m_nIndex++;
+    }
+
+    if (pcFetched)
+        *pcFetched = ulCopied;
+
+    return (ulCopied == cFormats) ? S_OK : S_FALSE;
+}
+
+STDMETHODIMP SharedClipboardWinEnumFormatEtc::Skip(ULONG cFormats)
+{
+    m_nIndex += cFormats;
+    return (m_nIndex <= m_nNumFormats) ? S_OK : S_FALSE;
+}
+
+STDMETHODIMP SharedClipboardWinEnumFormatEtc::Reset(void)
+{
+    m_nIndex = 0;
+    return S_OK;
+}
+
+STDMETHODIMP SharedClipboardWinEnumFormatEtc::Clone(IEnumFORMATETC **ppEnumFormatEtc)
+{
+    HRESULT hResult = CreateEnumFormatEtc(m_nNumFormats, m_pFormatEtc, ppEnumFormatEtc);
+    if (hResult == S_OK)
+        ((SharedClipboardWinEnumFormatEtc *) *ppEnumFormatEtc)->m_nIndex = m_nIndex;
+
+    return hResult;
+}
+
+/* static */
+void SharedClipboardWinEnumFormatEtc::CopyFormat(LPFORMATETC pDest, LPFORMATETC pSource)
+{
+    AssertPtrReturnVoid(pDest);
+    AssertPtrReturnVoid(pSource);
+
+    *pDest = *pSource;
+
+    if (pSource->ptd)
+    {
+        pDest->ptd = (DVTARGETDEVICE*)CoTaskMemAlloc(sizeof(DVTARGETDEVICE));
+        *(pDest->ptd) = *(pSource->ptd);
+    }
+}
+
+/* static */
+HRESULT SharedClipboardWinEnumFormatEtc::CreateEnumFormatEtc(UINT nNumFormats, LPFORMATETC pFormatEtc, IEnumFORMATETC **ppEnumFormatEtc)
+{
+    AssertReturn(nNumFormats, E_INVALIDARG);
+    AssertPtrReturn(pFormatEtc, E_INVALIDARG);
+    AssertPtrReturn(ppEnumFormatEtc, E_INVALIDARG);
+
+    HRESULT hr;
+    try
+    {
+        *ppEnumFormatEtc = new SharedClipboardWinEnumFormatEtc(pFormatEtc, nNumFormats);
+        hr = S_OK;
+    }
+    catch(std::bad_alloc &)
+    {
+        hr = E_OUTOFMEMORY;
+    }
+
+    return hr;
+}
+