1c82f2877SAndrew Rist /**************************************************************
2cdf0e10cSrcweir *
3c82f2877SAndrew Rist * Licensed to the Apache Software Foundation (ASF) under one
4c82f2877SAndrew Rist * or more contributor license agreements. See the NOTICE file
5c82f2877SAndrew Rist * distributed with this work for additional information
6c82f2877SAndrew Rist * regarding copyright ownership. The ASF licenses this file
7c82f2877SAndrew Rist * to you under the Apache License, Version 2.0 (the
8c82f2877SAndrew Rist * "License"); you may not use this file except in compliance
9c82f2877SAndrew Rist * with the License. You may obtain a copy of the License at
10c82f2877SAndrew Rist *
11c82f2877SAndrew Rist * http://www.apache.org/licenses/LICENSE-2.0
12c82f2877SAndrew Rist *
13c82f2877SAndrew Rist * Unless required by applicable law or agreed to in writing,
14c82f2877SAndrew Rist * software distributed under the License is distributed on an
15c82f2877SAndrew Rist * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16c82f2877SAndrew Rist * KIND, either express or implied. See the License for the
17c82f2877SAndrew Rist * specific language governing permissions and limitations
18c82f2877SAndrew Rist * under the License.
19c82f2877SAndrew Rist *
20c82f2877SAndrew Rist *************************************************************/
21c82f2877SAndrew Rist
22c82f2877SAndrew Rist
23cdf0e10cSrcweir
24cdf0e10cSrcweir // MARKER(update_precomp.py): autogen include statement, do not remove
25cdf0e10cSrcweir #include "precompiled_vcl.hxx"
26cdf0e10cSrcweir
27cdf0e10cSrcweir #include "osl/module.h"
28cdf0e10cSrcweir #include "osl/process.h"
29cdf0e10cSrcweir
30cdf0e10cSrcweir #include "rtl/ustrbuf.hxx"
31cdf0e10cSrcweir
32cdf0e10cSrcweir #include "salinst.hxx"
33cdf0e10cSrcweir #include "unx/saldata.hxx"
34cdf0e10cSrcweir #include "vcl/printerinfomanager.hxx"
35cdf0e10cSrcweir
36cdf0e10cSrcweir #include <cstdio>
37cdf0e10cSrcweir #include <unistd.h>
38cdf0e10cSrcweir
39cdf0e10cSrcweir using namespace rtl;
40cdf0e10cSrcweir
41cdf0e10cSrcweir extern "C" {
42cdf0e10cSrcweir typedef SalInstance*(*salFactoryProc)( oslModule pModule);
43cdf0e10cSrcweir }
44cdf0e10cSrcweir
45cdf0e10cSrcweir static oslModule pCloseModule = NULL;
46cdf0e10cSrcweir
47cdf0e10cSrcweir enum {
48cdf0e10cSrcweir DESKTOP_NONE = 0,
49cdf0e10cSrcweir DESKTOP_UNKNOWN,
50cdf0e10cSrcweir DESKTOP_GNOME,
51cdf0e10cSrcweir DESKTOP_KDE,
52cdf0e10cSrcweir DESKTOP_KDE4,
53cdf0e10cSrcweir DESKTOP_CDE
54cdf0e10cSrcweir };
55cdf0e10cSrcweir
56cdf0e10cSrcweir static const char * desktop_strings[] = { "none", "unknown", "GNOME", "KDE", "KDE4", "CDE" };
57cdf0e10cSrcweir
tryInstance(const OUString & rModuleBase)58cdf0e10cSrcweir static SalInstance* tryInstance( const OUString& rModuleBase )
59cdf0e10cSrcweir {
60cdf0e10cSrcweir SalInstance* pInst = NULL;
61cdf0e10cSrcweir
62cdf0e10cSrcweir OUStringBuffer aModName( 128 );
63cdf0e10cSrcweir aModName.appendAscii( SAL_DLLPREFIX"vclplug_" );
64cdf0e10cSrcweir aModName.append( rModuleBase );
65cdf0e10cSrcweir aModName.appendAscii( SAL_DLLPOSTFIX );
661385a70cSHerbert Dürr aModName.appendAscii( SAL_DLLEXTENSION );
67cdf0e10cSrcweir OUString aModule = aModName.makeStringAndClear();
68cdf0e10cSrcweir
69cdf0e10cSrcweir oslModule aMod = osl_loadModuleRelative(
70cdf0e10cSrcweir reinterpret_cast< oslGenericFunction >( &tryInstance ), aModule.pData,
71cdf0e10cSrcweir SAL_LOADMODULE_DEFAULT );
72cdf0e10cSrcweir if( aMod )
73cdf0e10cSrcweir {
74cdf0e10cSrcweir salFactoryProc aProc = (salFactoryProc)osl_getAsciiFunctionSymbol( aMod, "create_SalInstance" );
75cdf0e10cSrcweir if( aProc )
76cdf0e10cSrcweir {
77cdf0e10cSrcweir pInst = aProc( aMod );
78cdf0e10cSrcweir #if OSL_DEBUG_LEVEL > 1
79cdf0e10cSrcweir std::fprintf( stderr, "sal plugin %s produced instance %p\n",
80cdf0e10cSrcweir OUStringToOString( aModule, RTL_TEXTENCODING_ASCII_US ).getStr(),
81cdf0e10cSrcweir pInst );
82cdf0e10cSrcweir #endif
83cdf0e10cSrcweir if( pInst )
84cdf0e10cSrcweir {
85cdf0e10cSrcweir pCloseModule = aMod;
86cdf0e10cSrcweir
87cdf0e10cSrcweir /*
88cdf0e10cSrcweir * Recent GTK+ versions load their modules with RTLD_LOCAL, so we can
89cdf0e10cSrcweir * not access the 'gnome_accessibility_module_shutdown' anymore.
90cdf0e10cSrcweir * So make sure libgtk+ & co are still mapped into memory when
91cdf0e10cSrcweir * atk-bridge's atexit handler gets called.
92cdf0e10cSrcweir */
93cdf0e10cSrcweir if( rModuleBase.equalsAscii("gtk") )
94cdf0e10cSrcweir {
95cdf0e10cSrcweir pCloseModule = NULL;
96cdf0e10cSrcweir }
97cdf0e10cSrcweir /*
98cdf0e10cSrcweir * #i109007# KDE3 seems to have the same problem; an atexit cleanup
99cdf0e10cSrcweir * handler, which cannot be resolved anymore if the plugin is already unloaded.
100cdf0e10cSrcweir */
101cdf0e10cSrcweir else if( rModuleBase.equalsAscii("kde") )
102cdf0e10cSrcweir {
103cdf0e10cSrcweir pCloseModule = NULL;
104cdf0e10cSrcweir }
105cdf0e10cSrcweir
106cdf0e10cSrcweir GetSalData()->m_pPlugin = aMod;
107cdf0e10cSrcweir }
108cdf0e10cSrcweir else
109cdf0e10cSrcweir osl_unloadModule( aMod );
110cdf0e10cSrcweir }
111cdf0e10cSrcweir else
112cdf0e10cSrcweir {
113cdf0e10cSrcweir #if OSL_DEBUG_LEVEL > 1
114cdf0e10cSrcweir std::fprintf( stderr, "could not load symbol %s from shared object %s\n",
115cdf0e10cSrcweir "create_SalInstance",
116cdf0e10cSrcweir OUStringToOString( aModule, RTL_TEXTENCODING_ASCII_US ).getStr() );
117cdf0e10cSrcweir #endif
118cdf0e10cSrcweir osl_unloadModule( aMod );
119cdf0e10cSrcweir }
120cdf0e10cSrcweir }
121cdf0e10cSrcweir #if OSL_DEBUG_LEVEL > 1
122cdf0e10cSrcweir else
123cdf0e10cSrcweir std::fprintf( stderr, "could not load shared object %s\n",
124cdf0e10cSrcweir OUStringToOString( aModule, RTL_TEXTENCODING_ASCII_US ).getStr() );
125cdf0e10cSrcweir #endif
126cdf0e10cSrcweir
127cdf0e10cSrcweir return pInst;
128cdf0e10cSrcweir }
129cdf0e10cSrcweir
get_desktop_environment()130cdf0e10cSrcweir static const rtl::OUString& get_desktop_environment()
131cdf0e10cSrcweir {
132cdf0e10cSrcweir static rtl::OUString aRet;
133cdf0e10cSrcweir if( ! aRet.getLength() )
134cdf0e10cSrcweir {
135cdf0e10cSrcweir OUStringBuffer aModName( 128 );
136cdf0e10cSrcweir aModName.appendAscii( SAL_DLLPREFIX"desktop_detector" );
137cdf0e10cSrcweir aModName.appendAscii( SAL_DLLPOSTFIX );
138cdf0e10cSrcweir aModName.appendAscii( SAL_DLLEXTENSION );
139cdf0e10cSrcweir OUString aModule = aModName.makeStringAndClear();
140cdf0e10cSrcweir
141cdf0e10cSrcweir oslModule aMod = osl_loadModuleRelative(
142cdf0e10cSrcweir reinterpret_cast< oslGenericFunction >( &tryInstance ), aModule.pData,
143cdf0e10cSrcweir SAL_LOADMODULE_DEFAULT );
144cdf0e10cSrcweir if( aMod )
145cdf0e10cSrcweir {
146cdf0e10cSrcweir rtl::OUString (*pSym)() = (rtl::OUString(*)())
147cdf0e10cSrcweir osl_getAsciiFunctionSymbol( aMod, "get_desktop_environment" );
148cdf0e10cSrcweir if( pSym )
149cdf0e10cSrcweir aRet = pSym();
150cdf0e10cSrcweir }
151cdf0e10cSrcweir osl_unloadModule( aMod );
152cdf0e10cSrcweir }
153cdf0e10cSrcweir return aRet;
154cdf0e10cSrcweir }
155cdf0e10cSrcweir
autodetect_plugin()156cdf0e10cSrcweir static SalInstance* autodetect_plugin()
157cdf0e10cSrcweir {
158cdf0e10cSrcweir static const char* pKDEFallbackList[] =
159cdf0e10cSrcweir {
160cdf0e10cSrcweir "kde4", "kde", "gtk", "gen", 0
161cdf0e10cSrcweir };
162cdf0e10cSrcweir
163cdf0e10cSrcweir static const char* pStandardFallbackList[] =
164cdf0e10cSrcweir {
165cdf0e10cSrcweir "gtk", "gen", 0
166cdf0e10cSrcweir };
167cdf0e10cSrcweir
168cdf0e10cSrcweir static const char* pHeadlessFallbackList[] =
169cdf0e10cSrcweir {
170cdf0e10cSrcweir "svp", 0
171cdf0e10cSrcweir };
172cdf0e10cSrcweir
173cdf0e10cSrcweir const rtl::OUString& desktop( get_desktop_environment() );
174cdf0e10cSrcweir const char ** pList = pStandardFallbackList;
175cdf0e10cSrcweir int nListEntry = 0;
176cdf0e10cSrcweir
177cdf0e10cSrcweir // no server at all: dummy plugin
178cdf0e10cSrcweir if ( desktop.equalsAscii( desktop_strings[DESKTOP_NONE] ) )
179cdf0e10cSrcweir pList = pHeadlessFallbackList;
180cdf0e10cSrcweir else if ( desktop.equalsAscii( desktop_strings[DESKTOP_GNOME] ) )
181cdf0e10cSrcweir pList = pStandardFallbackList;
182cdf0e10cSrcweir else if( desktop.equalsAscii( desktop_strings[DESKTOP_KDE] ) )
183cdf0e10cSrcweir {
184cdf0e10cSrcweir pList = pKDEFallbackList;
185cdf0e10cSrcweir nListEntry = 1;
186cdf0e10cSrcweir }
187cdf0e10cSrcweir else if( desktop.equalsAscii( desktop_strings[DESKTOP_KDE4] ) )
188cdf0e10cSrcweir pList = pKDEFallbackList;
189cdf0e10cSrcweir
190cdf0e10cSrcweir SalInstance* pInst = NULL;
191cdf0e10cSrcweir while( pList[nListEntry] && pInst == NULL )
192cdf0e10cSrcweir {
193cdf0e10cSrcweir rtl::OUString aTry( rtl::OUString::createFromAscii( pList[nListEntry] ) );
194cdf0e10cSrcweir pInst = tryInstance( aTry );
195cdf0e10cSrcweir #if OSL_DEBUG_LEVEL > 1
196cdf0e10cSrcweir if( pInst )
197cdf0e10cSrcweir std::fprintf( stderr, "plugin autodetection: %s\n", pList[nListEntry] );
198cdf0e10cSrcweir #endif
199cdf0e10cSrcweir nListEntry++;
200cdf0e10cSrcweir }
201cdf0e10cSrcweir
202cdf0e10cSrcweir return pInst;
203cdf0e10cSrcweir }
204cdf0e10cSrcweir
check_headless_plugin()205cdf0e10cSrcweir static SalInstance* check_headless_plugin()
206cdf0e10cSrcweir {
207cdf0e10cSrcweir int nParams = osl_getCommandArgCount();
208cdf0e10cSrcweir OUString aParam;
209cdf0e10cSrcweir for( int i = 0; i < nParams; i++ )
210cdf0e10cSrcweir {
211cdf0e10cSrcweir osl_getCommandArg( i, &aParam.pData );
212cdf0e10cSrcweir if( aParam.equalsAscii( "-headless" ) )
213cdf0e10cSrcweir return tryInstance( OUString( RTL_CONSTASCII_USTRINGPARAM( "svp" ) ) );
214cdf0e10cSrcweir }
215cdf0e10cSrcweir return NULL;
216cdf0e10cSrcweir }
217cdf0e10cSrcweir
CreateSalInstance()218cdf0e10cSrcweir SalInstance *CreateSalInstance()
219cdf0e10cSrcweir {
220cdf0e10cSrcweir SalInstance* pInst = NULL;
221cdf0e10cSrcweir
222cdf0e10cSrcweir static const char* pUsePlugin = getenv( "SAL_USE_VCLPLUGIN" );
223cdf0e10cSrcweir
224cdf0e10cSrcweir if( !(pUsePlugin && *pUsePlugin) )
225cdf0e10cSrcweir pInst = check_headless_plugin();
226cdf0e10cSrcweir else
227cdf0e10cSrcweir pInst = tryInstance( OUString::createFromAscii( pUsePlugin ) );
228cdf0e10cSrcweir
229cdf0e10cSrcweir if( ! pInst )
230cdf0e10cSrcweir pInst = autodetect_plugin();
231cdf0e10cSrcweir
232cdf0e10cSrcweir // fallback to gen
233cdf0e10cSrcweir if( ! pInst )
234cdf0e10cSrcweir pInst = tryInstance( OUString( RTL_CONSTASCII_USTRINGPARAM( "gen" ) ) );
235cdf0e10cSrcweir
236cdf0e10cSrcweir if( ! pInst )
237cdf0e10cSrcweir {
238cdf0e10cSrcweir std::fprintf( stderr, "no suitable windowing system found, exiting.\n" );
239cdf0e10cSrcweir _exit( 1 );
240cdf0e10cSrcweir }
241cdf0e10cSrcweir
242cdf0e10cSrcweir // acquire SolarMutex
243cdf0e10cSrcweir pInst->AcquireYieldMutex( 1 );
244cdf0e10cSrcweir
245cdf0e10cSrcweir return pInst;
246cdf0e10cSrcweir }
247cdf0e10cSrcweir
DestroySalInstance(SalInstance * pInst)248cdf0e10cSrcweir void DestroySalInstance( SalInstance *pInst )
249cdf0e10cSrcweir {
250cdf0e10cSrcweir // release SolarMutex
251cdf0e10cSrcweir pInst->ReleaseYieldMutex();
252cdf0e10cSrcweir
253cdf0e10cSrcweir delete pInst;
254cdf0e10cSrcweir if( pCloseModule )
255cdf0e10cSrcweir osl_unloadModule( pCloseModule );
256cdf0e10cSrcweir }
257cdf0e10cSrcweir
InitSalData()258cdf0e10cSrcweir void InitSalData()
259cdf0e10cSrcweir {
260cdf0e10cSrcweir }
261cdf0e10cSrcweir
DeInitSalData()262cdf0e10cSrcweir void DeInitSalData()
263cdf0e10cSrcweir {
264cdf0e10cSrcweir }
265cdf0e10cSrcweir
InitSalMain()266cdf0e10cSrcweir void InitSalMain()
267cdf0e10cSrcweir {
268cdf0e10cSrcweir }
269cdf0e10cSrcweir
DeInitSalMain()270cdf0e10cSrcweir void DeInitSalMain()
271cdf0e10cSrcweir {
272cdf0e10cSrcweir }
273cdf0e10cSrcweir
SalAbort(const XubString & rErrorText)274cdf0e10cSrcweir void SalAbort( const XubString& rErrorText )
275cdf0e10cSrcweir {
276cdf0e10cSrcweir if( !rErrorText.Len() )
277cdf0e10cSrcweir std::fprintf( stderr, "Application Error" );
278cdf0e10cSrcweir else
279*851abcd9Struckman std::fprintf( stderr, "%s", ByteString( rErrorText, gsl_getSystemTextEncoding() ).GetBuffer() );
280cdf0e10cSrcweir abort();
281cdf0e10cSrcweir }
282cdf0e10cSrcweir
SalGetDesktopEnvironment()283cdf0e10cSrcweir const OUString& SalGetDesktopEnvironment()
284cdf0e10cSrcweir {
285cdf0e10cSrcweir return get_desktop_environment();
286cdf0e10cSrcweir }
287cdf0e10cSrcweir
SalData()288cdf0e10cSrcweir SalData::SalData() :
289cdf0e10cSrcweir m_pInstance(NULL),
290cdf0e10cSrcweir m_pPlugin(NULL),
291cdf0e10cSrcweir m_pPIManager(NULL)
292cdf0e10cSrcweir {
293cdf0e10cSrcweir }
294cdf0e10cSrcweir
~SalData()295cdf0e10cSrcweir SalData::~SalData()
296cdf0e10cSrcweir {
297cdf0e10cSrcweir psp::PrinterInfoManager::release();
298cdf0e10cSrcweir }
299