shell/source/backends/kde5be/kde5backend.cxx

   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 <sal/config.h>
  21
  22 #include <QtWidgets/QApplication>
  23
  24 #include <boost/noncopyable.hpp>
  25 #include <com/sun/star/beans/Optional.hpp>
  26 #include <com/sun/star/beans/PropertyVetoException.hpp>
  27 #include <com/sun/star/beans/UnknownPropertyException.hpp>
  28 #include <com/sun/star/beans/XPropertyChangeListener.hpp>
  29 #include <com/sun/star/beans/XPropertySet.hpp>
  30 #include <com/sun/star/beans/XPropertySetInfo.hpp>
  31 #include <com/sun/star/beans/XVetoableChangeListener.hpp>
  32 #include <com/sun/star/lang/IllegalArgumentException.hpp>
  33 #include <com/sun/star/lang/WrappedTargetException.hpp>
  34 #include <com/sun/star/lang/XMultiComponentFactory.hpp>
  35 #include <com/sun/star/lang/XServiceInfo.hpp>
  36 #include <com/sun/star/uno/Any.hxx>
  37 #include <com/sun/star/uno/Reference.hxx>
  38 #include <com/sun/star/uno/RuntimeException.hpp>
  39 #include <com/sun/star/uno/Sequence.hxx>
  40 #include <com/sun/star/uno/XComponentContext.hpp>
  41 #include <com/sun/star/uno/XCurrentContext.hpp>
  42 #include <cppuhelper/factory.hxx>
  43 #include <cppuhelper/implbase.hxx>
  44 #include <cppuhelper/implementationentry.hxx>
  45 #include <cppuhelper/weak.hxx>
  46 #include <rtl/string.h>
  47 #include <rtl/ustring.h>
  48 #include <rtl/ustring.hxx>
  49 #include <sal/types.h>
  50 #include <uno/current_context.hxx>
  51
  52 #include <osl/process.h>
  53 #include <osl/thread.h>
  54
  55 #include "kde5access.hxx"
  56
  57 namespace
  58 {
  59 OUString getServiceImplementationName()
  60 {
  61     return OUString("com.sun.star.comp.configuration.backend.KDE5Backend");
  62 }
  63
  64 css::uno::Sequence<OUString> getServiceSupportedServiceNames()
  65 {
  66     OUString name("com.sun.star.configuration.backend.KDE5Backend");
  67     return css::uno::Sequence<OUString>(&name, 1);
  68 }
  69
  70 class Service : public cppu::WeakImplHelper<css::lang::XServiceInfo, css::beans::XPropertySet>,
  71                 private boost::noncopyable
  72 {
  73 public:
  74     Service();
  75
  76 private:
  77     virtual ~Service() override {}
  78
  79     virtual OUString SAL_CALL getImplementationName() override
  80     {
  81         return getServiceImplementationName();
  82     }
  83
  84     virtual sal_Bool SAL_CALL supportsService(OUString const& ServiceName) override
  85     {
  86         return ServiceName == getSupportedServiceNames()[0];
  87     }
  88
  89     virtual css::uno::Sequence<OUString> SAL_CALL getSupportedServiceNames() override
  90     {
  91         return getServiceSupportedServiceNames();
  92     }
  93
  94     virtual css::uno::Reference<css::beans::XPropertySetInfo> SAL_CALL getPropertySetInfo() override
  95     {
  96         return css::uno::Reference<css::beans::XPropertySetInfo>();
  97     }
  98
  99     virtual void SAL_CALL setPropertyValue(OUString const&, css::uno::Any const&) override;
 100
 101     virtual css::uno::Any SAL_CALL getPropertyValue(OUString const& PropertyName) override;
 102
 103     virtual void SAL_CALL addPropertyChangeListener(
 104         OUString const&, css::uno::Reference<css::beans::XPropertyChangeListener> const&) override
 105     {
 106     }
 107
 108     virtual void SAL_CALL removePropertyChangeListener(
 109         OUString const&, css::uno::Reference<css::beans::XPropertyChangeListener> const&) override
 110     {
 111     }
 112
 113     virtual void SAL_CALL addVetoableChangeListener(
 114         OUString const&, css::uno::Reference<css::beans::XVetoableChangeListener> const&) override
 115     {
 116     }
 117
 118     virtual void SAL_CALL removeVetoableChangeListener(
 119         OUString const&, css::uno::Reference<css::beans::XVetoableChangeListener> const&) override
 120     {
 121     }
 122
 123     bool enabled_;
 124 };
 125
 126 OString getDisplayArg()
 127 {
 128     OUString aParam;
 129     const sal_uInt32 nParams = osl_getCommandArgCount();
 130     for (sal_uInt32 nIdx = 0; nIdx < nParams; ++nIdx)
 131     {
 132         osl_getCommandArg(nIdx, &aParam.pData);
 133         if (aParam != "-display")
 134             continue;
 135
 136         ++nIdx;
 137         osl_getCommandArg(nIdx, &aParam.pData);
 138         return OUStringToOString(aParam, osl_getThreadTextEncoding());
 139     }
 140     return {};
 141 }
 142
 143 OString getExecutable()
 144 {
 145     OUString aParam, aBin;
 146     osl_getExecutableFile(&aParam.pData);
 147     osl_getSystemPathFromFileURL(aParam.pData, &aBin.pData);
 148     return OUStringToOString(aBin, osl_getThreadTextEncoding());
 149 }
 150
 151 // init the QApplication when we load the kde5backend into a non-Qt vclplug (e.g. Gtk3KDE5)
 152 // TODO: use a helper process to read these values without linking to Qt directly?
 153 // TODO: share this code somehow with Qt5Instance.cxx?
 154 void initQApp()
 155 {
 156     const auto aDisplay = getDisplayArg();
 157     int nFakeArgc = aDisplay.isEmpty() ? 2 : 3;
 158     char** pFakeArgv = new char*[nFakeArgc];
 159
 160     pFakeArgv[0] = strdup(getExecutable().getStr());
 161     pFakeArgv[1] = strdup("--nocrashhandler");
 162     if (aDisplay.isEmpty())
 163         pFakeArgv[2] = strdup(aDisplay.getStr());
 164
 165     char* session_manager = nullptr;
 166     if (auto* session_manager_env = getenv("SESSION_MANAGER"))
 167     {
 168         session_manager = strdup(session_manager_env);
 169         unsetenv("SESSION_MANAGER");
 170     }
 171
 172     auto app = new QApplication(nFakeArgc, pFakeArgv);
 173     QObject::connect(app, &QObject::destroyed, app, [nFakeArgc, pFakeArgv]() {
 174         for (int i = 0; i < nFakeArgc; ++i)
 175             delete pFakeArgv[i];
 176         delete[] pFakeArgv;
 177     });
 178
 179     if (session_manager != nullptr)
 180     {
 181         // coverity[tainted_string] - trusted source for setenv
 182         setenv("SESSION_MANAGER", session_manager, 1);
 183         free(session_manager);
 184     }
 185
 186     QApplication::setQuitOnLastWindowClosed(false);
 187 }
 188
 189 Service::Service()
 190     : enabled_(false)
 191 {
 192     css::uno::Reference<css::uno::XCurrentContext> context(css::uno::getCurrentContext());
 193     if (context.is())
 194     {
 195         if (!qApp)
 196         {
 197             initQApp();
 198         }
 199         OUString desktop;
 200         context->getValueByName("system.desktop-environment") >>= desktop;
 201         enabled_ = desktop == "KDE5" && qApp != nullptr;
 202     }
 203 }
 204
 205 void Service::setPropertyValue(OUString const&, css::uno::Any const&)
 206 {
 207     throw css::lang::IllegalArgumentException("setPropertyValue not supported",
 208                                               static_cast<cppu::OWeakObject*>(this), -1);
 209 }
 210
 211 css::uno::Any Service::getPropertyValue(OUString const& PropertyName)
 212 {
 213     if (PropertyName == "EnableATToolSupport" || PropertyName == "ExternalMailer"
 214         || PropertyName == "SourceViewFontHeight" || PropertyName == "SourceViewFontName"
 215         || PropertyName == "WorkPathVariable" || PropertyName == "ooInetFTPProxyName"
 216         || PropertyName == "ooInetFTPProxyPort" || PropertyName == "ooInetHTTPProxyName"
 217         || PropertyName == "ooInetHTTPProxyPort" || PropertyName == "ooInetHTTPSProxyName"
 218         || PropertyName == "ooInetHTTPSProxyPort" || PropertyName == "ooInetNoProxy"
 219         || PropertyName == "ooInetProxyType")
 220     {
 221         return css::uno::makeAny(enabled_ ? kde5access::getValue(PropertyName)
 222                                           : css::beans::Optional<css::uno::Any>());
 223     }
 224     else if (PropertyName == "givenname" || PropertyName == "sn"
 225              || PropertyName == "TemplatePathVariable")
 226     {
 227         return css::uno::makeAny(css::beans::Optional<css::uno::Any>());
 228         //TODO: obtain values from KDE?
 229     }
 230     throw css::beans::UnknownPropertyException(PropertyName, static_cast<cppu::OWeakObject*>(this));
 231 }
 232
 233 css::uno::Reference<css::uno::XInterface>
 234 createInstance(css::uno::Reference<css::uno::XComponentContext> const&)
 235 {
 236     return static_cast<cppu::OWeakObject*>(new Service);
 237 }
 238
 239 static cppu::ImplementationEntry const services[]
 240     = { { &createInstance, &getServiceImplementationName, &getServiceSupportedServiceNames,
 241           &cppu::createSingleComponentFactory, nullptr, 0 },
 242         { nullptr, nullptr, nullptr, nullptr, nullptr, 0 } };
 243 }
 244
 245 extern "C" SAL_DLLPUBLIC_EXPORT void*
 246 kde5be1_component_getFactory(char const* pImplName, void* pServiceManager, void* pRegistryKey)
 247 {
 248     return cppu::component_getFactoryHelper(pImplName, pServiceManager, pRegistryKey, services);
 249 }
 250
 251 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */