1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 /*
3 * This file is part of the LibreOffice project.
4 *
5 * This Source Code Form is subject to the terms of the Mozilla Public
6 * License, v. 2.0. If a copy of the MPL was not distributed with this
7 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 *
9 * This file incorporates work covered by the following license notice:
10 *
11 * Licensed to the Apache Software Foundation (ASF) under one or more
12 * contributor license agreements. See the NOTICE file distributed
13 * with this work for additional information regarding copyright
14 * ownership. The ASF licenses this file to you under the Apache
15 * License, Version 2.0 (the "License"); you may not use this file
16 * except in compliance with the License. You may obtain a copy of
17 * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18 */
19
20 #include <osl/diagnose.h>
21
22 #include "olewrapclient.hxx"
23 #include "olecomponent.hxx"
24
25 // TODO: May be a mutex must be introduced
26
OleWrapperClientSite(OleComponent * pOleComp)27 OleWrapperClientSite::OleWrapperClientSite( OleComponent* pOleComp )
28 : m_nRefCount( 0 )
29 , m_pOleComp( pOleComp )
30 {
31 OSL_ENSURE( m_pOleComp, "No ole component is provided!" );
32 }
33
~OleWrapperClientSite()34 OleWrapperClientSite::~OleWrapperClientSite()
35 {
36 }
37
QueryInterface(REFIID riid,void ** ppv)38 STDMETHODIMP OleWrapperClientSite::QueryInterface( REFIID riid , void** ppv )
39 {
40 *ppv=nullptr;
41
42 if ( riid == IID_IUnknown )
43 *ppv = static_cast<IUnknown*>(this);
44
45 if ( riid == IID_IOleClientSite )
46 *ppv = static_cast<IOleClientSite*>(this);
47
48 if ( *ppv != nullptr )
49 {
50 static_cast<IUnknown*>(*ppv)->AddRef();
51 return S_OK;
52 }
53
54 return E_NOINTERFACE;
55 }
56
STDMETHODIMP_(ULONG)57 STDMETHODIMP_(ULONG) OleWrapperClientSite::AddRef()
58 {
59 return osl_atomic_increment( &m_nRefCount);
60 }
61
STDMETHODIMP_(ULONG)62 STDMETHODIMP_(ULONG) OleWrapperClientSite::Release()
63 {
64 ULONG nReturn = --m_nRefCount;
65 if ( m_nRefCount == 0 )
66 delete this;
67
68 return nReturn;
69 }
70
disconnectOleComponent()71 void OleWrapperClientSite::disconnectOleComponent()
72 {
73 // must not be called from the descructor of OleComponent!!!
74 osl::MutexGuard aGuard( m_aMutex );
75 m_pOleComp = nullptr;
76 }
77
SaveObject()78 STDMETHODIMP OleWrapperClientSite::SaveObject()
79 {
80 OleComponent* pLockComponent = nullptr;
81 HRESULT hResult = E_FAIL;
82
83 {
84 osl::MutexGuard aGuard( m_aMutex );
85 if ( m_pOleComp )
86 {
87 pLockComponent = m_pOleComp;
88 pLockComponent->acquire();
89 }
90 }
91
92 if ( pLockComponent )
93 {
94 if ( pLockComponent->SaveObject_Impl() )
95 hResult = S_OK;
96
97 pLockComponent->release();
98 }
99
100 return hResult;
101 }
102
GetMoniker(DWORD,DWORD,IMoniker ** ppmk)103 STDMETHODIMP OleWrapperClientSite::GetMoniker( DWORD, DWORD, IMoniker **ppmk )
104 {
105 *ppmk = nullptr;
106 return E_NOTIMPL;
107 }
108
GetContainer(IOleContainer ** ppContainer)109 STDMETHODIMP OleWrapperClientSite::GetContainer( IOleContainer** ppContainer )
110 {
111 *ppContainer = nullptr;
112 return E_NOTIMPL;
113 }
114
ShowObject()115 STDMETHODIMP OleWrapperClientSite::ShowObject()
116 {
117 return S_OK;
118 }
119
OnShowWindow(BOOL bShow)120 STDMETHODIMP OleWrapperClientSite::OnShowWindow( BOOL bShow )
121 {
122 OleComponent* pLockComponent = nullptr;
123
124 // TODO/LATER: redirect the notification to the main thread so that SolarMutex can be locked
125 {
126 osl::MutexGuard aGuard( m_aMutex );
127 if ( m_pOleComp )
128 {
129 pLockComponent = m_pOleComp;
130 pLockComponent->acquire();
131 }
132 }
133
134 if ( pLockComponent )
135 {
136 pLockComponent->OnShowWindow_Impl( bShow ); // the result is not interesting
137 pLockComponent->release();
138 }
139
140 return S_OK;
141 }
142
RequestNewObjectLayout()143 STDMETHODIMP OleWrapperClientSite::RequestNewObjectLayout()
144 {
145 return E_NOTIMPL;
146 }
147
148 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
149