1 files changed, 137 insertions, 0 deletions
diff --git a/shell/source/win32/shlxthandler/classfactory.cxx b/shell/source/win32/shlxthandler/classfactory.cxx
new file mode 100644
index 000000000..1f4200521
--- /dev/null
+++ b/shell/source/win32/shlxthandler/classfactory.cxx
@@ -0,0 +1,137 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <global.hxx>
+#include "classfactory.hxx"
+#include <infotips.hxx>
+#include <propsheets.hxx>
+#include <columninfo.hxx>
+#include <thumbviewer.hxx>
+#include <shlxthdl.hxx>
+
+
+long CClassFactory::s_ServerLocks = 0;
+
+
+CClassFactory::CClassFactory(const CLSID& clsid) :
+    m_RefCnt(1),
+    m_Clsid(clsid)
+{
+    InterlockedIncrement(&g_DllRefCnt);
+}
+
+
+CClassFactory::~CClassFactory()
+{
+    InterlockedDecrement(&g_DllRefCnt);
+}
+
+
+// IUnknown methods
+
+
+HRESULT STDMETHODCALLTYPE CClassFactory::QueryInterface(REFIID riid, void __RPC_FAR *__RPC_FAR *ppvObject)
+{
+    *ppvObject = nullptr;
+
+    if (IID_IUnknown == riid || IID_IClassFactory == riid)
+    {
+        IUnknown* pUnk = this;
+        pUnk->AddRef();
+        *ppvObject = pUnk;
+        return S_OK;
+    }
+
+    return E_NOINTERFACE;
+}
+
+
+ULONG STDMETHODCALLTYPE CClassFactory::AddRef()
+{
+    return InterlockedIncrement(&m_RefCnt);
+}
+
+
+ULONG STDMETHODCALLTYPE CClassFactory::Release()
+{
+    long refcnt = InterlockedDecrement(&m_RefCnt);
+
+    if (0 == refcnt)
+        delete this;
+
+    return refcnt;
+}
+
+
+// IClassFactory methods
+
+
+HRESULT STDMETHODCALLTYPE CClassFactory::CreateInstance(
+            IUnknown __RPC_FAR *pUnkOuter,
+            REFIID riid,
+            void __RPC_FAR *__RPC_FAR *ppvObject)
+{
+    if (pUnkOuter != nullptr)
+        return CLASS_E_NOAGGREGATION;
+
+    IUnknown* pUnk = nullptr;
+
+    if (CLSID_PROPERTYSHEET_HANDLER == m_Clsid)
+        pUnk = static_cast<IShellExtInit*>(new CPropertySheet());
+
+    else if (CLSID_INFOTIP_HANDLER == m_Clsid)
+        pUnk = static_cast<IQueryInfo*>(new CInfoTip());
+
+    else if (CLSID_COLUMN_HANDLER == m_Clsid)
+        pUnk = static_cast<IColumnProvider*>(new CColumnInfo());
+
+    else if (CLSID_THUMBVIEWER_HANDLER == m_Clsid)
+        pUnk = static_cast<IExtractImage*>(new CThumbviewer());
+
+    if (nullptr == pUnk)
+    {
+        return E_OUTOFMEMORY;
+    }
+
+    HRESULT hr = pUnk->QueryInterface(riid, ppvObject);
+
+    // if QueryInterface failed the component will destroy itself
+    pUnk->Release();
+
+    return hr;
+}
+
+
+HRESULT STDMETHODCALLTYPE CClassFactory::LockServer(BOOL fLock)
+{
+    if (fLock)
+        InterlockedIncrement(&s_ServerLocks);
+    else
+        InterlockedDecrement(&s_ServerLocks);
+
+    return S_OK;
+}
+
+
+bool CClassFactory::IsLocked()
+{
+    return (s_ServerLocks > 0);
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */