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-rw-r--r--shell/source/win32/shlxthandler/classfactory.cxx137
1 files changed, 137 insertions, 0 deletions
diff --git a/shell/source/win32/shlxthandler/classfactory.cxx b/shell/source/win32/shlxthandler/classfactory.cxx
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+++ b/shell/source/win32/shlxthandler/classfactory.cxx
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+/* -*- 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 = 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: */