framework/source/uifactory/uielementfactorymanager.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 <string_view>
  23
  24 #include <uifactory/configurationaccessfactorymanager.hxx>
  25 #include <helper/mischelper.hxx>
  26
  27 #include <com/sun/star/beans/PropertyValue.hpp>
  28 #include <com/sun/star/beans/XPropertySet.hpp>
  29 #include <com/sun/star/configuration/theDefaultProvider.hpp>
  30 #include <com/sun/star/container/ElementExistException.hpp>
  31 #include <com/sun/star/container/XContainer.hpp>
  32 #include <com/sun/star/container/XContainerListener.hpp>
  33 #include <com/sun/star/lang/XServiceInfo.hpp>
  34 #include <com/sun/star/loader/CannotActivateFactoryException.hpp>
  35 #include <com/sun/star/frame/ModuleManager.hpp>
  36 #include <com/sun/star/frame/UnknownModuleException.hpp>
  37 #include <com/sun/star/frame/XFrame.hpp>
  38 #include <com/sun/star/frame/XModuleManager2.hpp>
  39 #include <com/sun/star/ui/XUIElementFactoryManager.hpp>
  40
  41 #include <rtl/ref.hxx>
  42 #include <sal/log.hxx>
  43 #include <comphelper/propertysequence.hxx>
  44 #include <comphelper/propertyvalue.hxx>
  45 #include <comphelper/compbase.hxx>
  46 #include <cppuhelper/supportsservice.hxx>
  47 #include <utility>
  48
  49 using namespace com::sun::star::uno;
  50 using namespace com::sun::star::lang;
  51 using namespace com::sun::star::beans;
  52 using namespace com::sun::star::frame;
  53 using namespace com::sun::star::configuration;
  54 using namespace com::sun::star::container;
  55 using namespace ::com::sun::star::ui;
  56 using namespace framework;
  57
  58 namespace framework
  59 {
  60
  61 // global function needed by both implementations
  62 static OUString getHashKeyFromStrings( std::u16string_view aType, std::u16string_view aName, std::u16string_view aModuleName )
  63 {
  64     return OUString::Concat(aType) + "^" + aName + "^" + aModuleName;
  65 }
  66
  67 ConfigurationAccess_FactoryManager::ConfigurationAccess_FactoryManager( const Reference< XComponentContext >& rxContext, OUString  _sRoot ) :
  68     m_aPropType( "Type" ),
  69     m_aPropName( "Name" ),
  70     m_aPropModule( "Module" ),
  71     m_aPropFactory( "FactoryImplementation" ),
  72     m_sRoot(std::move(_sRoot)),
  73     m_bConfigAccessInitialized( false )
  74 {
  75     m_xConfigProvider = theDefaultProvider::get( rxContext );
  76 }
  77
  78 ConfigurationAccess_FactoryManager::~ConfigurationAccess_FactoryManager()
  79 {
  80     // SAFE
  81     std::unique_lock g(m_aMutex);
  82
  83     Reference< XContainer > xContainer( m_xConfigAccess, UNO_QUERY );
  84     if ( xContainer.is() )
  85         xContainer->removeContainerListener(m_xConfigListener);
  86 }
  87
  88 OUString ConfigurationAccess_FactoryManager::getFactorySpecifierFromTypeNameModule( std::u16string_view rType, std::u16string_view rName, std::u16string_view rModule ) const
  89 {
  90     // SAFE
  91     std::unique_lock g(m_aMutex);
  92
  93     FactoryManagerMap::const_iterator pIter =
  94         m_aFactoryManagerMap.find( getHashKeyFromStrings( rType, rName, rModule ));
  95     if ( pIter != m_aFactoryManagerMap.end() )
  96         return pIter->second;
  97     else
  98     {
  99         pIter = m_aFactoryManagerMap.find(
 100             getHashKeyFromStrings( rType, rName, std::u16string_view() ));
 101         if ( pIter != m_aFactoryManagerMap.end() )
 102             return pIter->second;
 103         else
 104         {
 105             // Support factories which uses a defined prefix before the ui name.
 106             size_t nIndex = rName.find( '_' );
 107             if ( nIndex > 0 && nIndex != std::u16string_view::npos)
 108             {
 109                 std::u16string_view aName = rName.substr( 0, nIndex+1 );
 110                 pIter = m_aFactoryManagerMap.find( getHashKeyFromStrings( rType, aName, std::u16string_view() ));
 111                 if ( pIter != m_aFactoryManagerMap.end() )
 112                     return pIter->second;
 113             }
 114
 115             pIter = m_aFactoryManagerMap.find( getHashKeyFromStrings( rType, std::u16string_view(), std::u16string_view() ));
 116             if ( pIter != m_aFactoryManagerMap.end() )
 117                 return pIter->second;
 118         }
 119     }
 120
 121     return OUString();
 122 }
 123
 124 void ConfigurationAccess_FactoryManager::addFactorySpecifierToTypeNameModule( std::u16string_view rType, std::u16string_view rName, std::u16string_view rModule, const OUString& rServiceSpecifier )
 125 {
 126     // SAFE
 127     std::unique_lock g(m_aMutex);
 128
 129     OUString aHashKey = getHashKeyFromStrings( rType, rName, rModule );
 130
 131     FactoryManagerMap::const_iterator pIter = m_aFactoryManagerMap.find( aHashKey );
 132
 133     if ( pIter != m_aFactoryManagerMap.end() )
 134         throw ElementExistException();
 135     m_aFactoryManagerMap.emplace( aHashKey, rServiceSpecifier );
 136 }
 137
 138 void ConfigurationAccess_FactoryManager::removeFactorySpecifierFromTypeNameModule( std::u16string_view rType, std::u16string_view rName, std::u16string_view rModule )
 139 {
 140     // SAFE
 141     std::unique_lock g(m_aMutex);
 142
 143     OUString aHashKey = getHashKeyFromStrings( rType, rName, rModule );
 144
 145     FactoryManagerMap::const_iterator pIter = m_aFactoryManagerMap.find( aHashKey );
 146
 147     if ( pIter == m_aFactoryManagerMap.end() )
 148         throw NoSuchElementException();
 149     m_aFactoryManagerMap.erase( aHashKey );
 150 }
 151
 152 Sequence< Sequence< PropertyValue > > ConfigurationAccess_FactoryManager::getFactoriesDescription() const
 153 {
 154     // SAFE
 155     std::unique_lock g(m_aMutex);
 156
 157     Sequence< Sequence< PropertyValue > > aSeqSeq;
 158
 159     sal_Int32 nIndex( 0 );
 160     for ( const auto& rEntry : m_aFactoryManagerMap )
 161     {
 162         OUString aFactory = rEntry.first;
 163         if ( !aFactory.isEmpty() )
 164         {
 165             sal_Int32                 nToken = 0;
 166
 167             aSeqSeq.realloc( aSeqSeq.getLength() + 1 );
 168             Sequence< PropertyValue > aSeq{ comphelper::makePropertyValue(
 169                 m_aPropType, aFactory.getToken( 0, '^', nToken )) };
 170             if ( nToken > 0 )
 171             {
 172                 aSeq.realloc( 2 );
 173                 aSeq.getArray()[1]
 174                     = comphelper::makePropertyValue(m_aPropName,
 175                                                     aFactory.getToken( 0, '^', nToken ));
 176                 if ( nToken > 0 )
 177                 {
 178                     aSeq.realloc( 3 );
 179                     aSeq.getArray()[2]
 180                         = comphelper::makePropertyValue(m_aPropModule,
 181                                                         aFactory.getToken( 0, '^', nToken ));
 182                 }
 183             }
 184
 185             aSeqSeq.getArray()[nIndex++] = aSeq;
 186         }
 187     }
 188
 189     return aSeqSeq;
 190 }
 191
 192 // container.XContainerListener
 193 void SAL_CALL ConfigurationAccess_FactoryManager::elementInserted( const ContainerEvent& aEvent )
 194 {
 195     OUString   aType;
 196     OUString   aName;
 197     OUString   aModule;
 198     OUString   aService;
 199
 200     // SAFE
 201     std::unique_lock g(m_aMutex);
 202
 203     if ( impl_getElementProps( aEvent.Element, aType, aName, aModule, aService ))
 204     {
 205         // Create hash key from type, name and module as they are together a primary key to
 206         // the UNO service that implements a user interface factory.
 207         OUString aHashKey( getHashKeyFromStrings( aType, aName, aModule ));
 208         m_aFactoryManagerMap.emplace( aHashKey, aService );
 209     }
 210 }
 211
 212 void SAL_CALL ConfigurationAccess_FactoryManager::elementRemoved ( const ContainerEvent& aEvent )
 213 {
 214     OUString   aType;
 215     OUString   aName;
 216     OUString   aModule;
 217     OUString   aService;
 218
 219     // SAFE
 220     std::unique_lock g(m_aMutex);
 221
 222     if ( impl_getElementProps( aEvent.Element, aType, aName, aModule, aService ))
 223     {
 224         // Create hash key from command and model as they are together a primary key to
 225         // the UNO service that implements the popup menu controller.
 226         OUString aHashKey( getHashKeyFromStrings( aType, aName, aModule ));
 227         m_aFactoryManagerMap.erase( aHashKey );
 228     }
 229 }
 230
 231 void SAL_CALL ConfigurationAccess_FactoryManager::elementReplaced( const ContainerEvent& aEvent )
 232 {
 233     OUString   aType;
 234     OUString   aName;
 235     OUString   aModule;
 236     OUString   aService;
 237
 238     // SAFE
 239     std::unique_lock g(m_aMutex);
 240
 241     if ( impl_getElementProps( aEvent.Element, aType, aName, aModule, aService ))
 242     {
 243         // Create hash key from command and model as they are together a primary key to
 244         // the UNO service that implements the popup menu controller.
 245         OUString aHashKey( getHashKeyFromStrings( aType, aName, aModule ));
 246         m_aFactoryManagerMap.erase( aHashKey );
 247         m_aFactoryManagerMap.emplace( aHashKey, aService );
 248     }
 249 }
 250
 251 // lang.XEventListener
 252 void SAL_CALL ConfigurationAccess_FactoryManager::disposing( const EventObject& )
 253 {
 254     // SAFE
 255     // remove our reference to the config access
 256     std::unique_lock g(m_aMutex);
 257     m_xConfigAccess.clear();
 258 }
 259
 260 void ConfigurationAccess_FactoryManager::readConfigurationData()
 261 {
 262     // SAFE
 263     std::unique_lock g(m_aMutex);
 264
 265     if ( !m_bConfigAccessInitialized )
 266     {
 267         Sequence<Any> aArgs(comphelper::InitAnyPropertySequence(
 268         {
 269             {"nodepath", Any(m_sRoot)}
 270         }));
 271
 272         try
 273         {
 274             m_xConfigAccess.set( m_xConfigProvider->createInstanceWithArguments(
 275                         "com.sun.star.configuration.ConfigurationAccess", aArgs ), UNO_QUERY );
 276         }
 277         catch ( const WrappedTargetException& )
 278         {
 279         }
 280
 281         m_bConfigAccessInitialized = true;
 282     }
 283
 284     if ( !m_xConfigAccess.is() )
 285         return;
 286
 287     const Sequence< OUString > aUIElementFactories = m_xConfigAccess->getElementNames();
 288
 289     OUString             aType;
 290     OUString             aName;
 291     OUString             aModule;
 292     OUString             aService;
 293     OUString             aHashKey;
 294     for ( OUString const & factoryName : aUIElementFactories )
 295     {
 296         if ( impl_getElementProps( m_xConfigAccess->getByName( factoryName ), aType, aName, aModule, aService ))
 297         {
 298             // Create hash key from type, name and module as they are together a primary key to
 299             // the UNO service that implements the user interface element factory.
 300             aHashKey = getHashKeyFromStrings( aType, aName, aModule );
 301             m_aFactoryManagerMap.emplace( aHashKey, aService );
 302         }
 303     }
 304
 305     Reference< XContainer > xContainer( m_xConfigAccess, UNO_QUERY );
 306     if ( xContainer.is() )
 307     {
 308         m_xConfigListener = new WeakContainerListener(this);
 309         xContainer->addContainerListener(m_xConfigListener);
 310     }
 311 }
 312
 313 bool ConfigurationAccess_FactoryManager::impl_getElementProps( const Any& aElement, OUString& rType, OUString& rName, OUString& rModule, OUString& rServiceSpecifier ) const
 314 {
 315     Reference< XPropertySet > xPropertySet;
 316     aElement >>= xPropertySet;
 317
 318     if ( !xPropertySet.is() )
 319         return true;
 320
 321     try
 322     {
 323         xPropertySet->getPropertyValue( m_aPropType ) >>= rType;
 324         xPropertySet->getPropertyValue( m_aPropName ) >>= rName;
 325         xPropertySet->getPropertyValue( m_aPropModule ) >>= rModule;
 326         xPropertySet->getPropertyValue( m_aPropFactory ) >>= rServiceSpecifier;
 327     }
 328     catch ( const css::beans::UnknownPropertyException& )
 329     {
 330         return false;
 331     }
 332     catch ( const css::lang::WrappedTargetException& )
 333     {
 334         return false;
 335     }
 336
 337     return true;
 338 }
 339
 340 } // framework
 341
 342 namespace {
 343
 344 typedef comphelper::WeakComponentImplHelper<
 345     css::lang::XServiceInfo,
 346     css::ui::XUIElementFactoryManager> UIElementFactoryManager_BASE;
 347
 348 class UIElementFactoryManager : public UIElementFactoryManager_BASE
 349 {
 350     virtual void disposing(std::unique_lock<std::mutex>&) override;
 351 public:
 352     explicit UIElementFactoryManager( const css::uno::Reference< css::uno::XComponentContext >& rxContext );
 353
 354     virtual OUString SAL_CALL getImplementationName() override
 355     {
 356         return "com.sun.star.comp.framework.UIElementFactoryManager";
 357     }
 358
 359     virtual sal_Bool SAL_CALL supportsService(OUString const & ServiceName) override
 360     {
 361         return cppu::supportsService(this, ServiceName);
 362     }
 363
 364     virtual css::uno::Sequence<OUString> SAL_CALL getSupportedServiceNames() override
 365     {
 366         return {"com.sun.star.ui.UIElementFactoryManager"};
 367     }
 368
 369     // XUIElementFactory
 370     virtual css::uno::Reference< css::ui::XUIElement > SAL_CALL createUIElement( const OUString& ResourceURL, const css::uno::Sequence< css::beans::PropertyValue >& Args ) override;
 371
 372     // XUIElementFactoryRegistration
 373     virtual css::uno::Sequence< css::uno::Sequence< css::beans::PropertyValue > > SAL_CALL getRegisteredFactories(  ) override;
 374     virtual css::uno::Reference< css::ui::XUIElementFactory > SAL_CALL getFactory( const OUString& ResourceURL, const OUString& ModuleIdentifier ) override;
 375     virtual void SAL_CALL registerFactory( const OUString& aType, const OUString& aName, const OUString& aModuleIdentifier, const OUString& aFactoryImplementationName ) override;
 376     virtual void SAL_CALL deregisterFactory( const OUString& aType, const OUString& aName, const OUString& aModuleIdentifier ) override;
 377
 378 private:
 379     bool                                                  m_bConfigRead;
 380     css::uno::Reference< css::uno::XComponentContext >        m_xContext;
 381     rtl::Reference<ConfigurationAccess_FactoryManager> m_pConfigAccess;
 382 };
 383
 384 UIElementFactoryManager::UIElementFactoryManager( const Reference< XComponentContext >& rxContext ) :
 385     m_bConfigRead( false ),
 386     m_xContext(rxContext),
 387     m_pConfigAccess(
 388         new ConfigurationAccess_FactoryManager(
 389             rxContext,
 390             "/org.openoffice.Office.UI.Factories/Registered/UIElementFactories"))
 391 {}
 392
 393 void UIElementFactoryManager::disposing(std::unique_lock<std::mutex>&)
 394 {
 395     m_pConfigAccess.clear();
 396 }
 397
 398 // XUIElementFactory
 399 Reference< XUIElement > SAL_CALL UIElementFactoryManager::createUIElement(
 400     const OUString& ResourceURL,
 401     const Sequence< PropertyValue >& Args )
 402 {
 403     Reference< XFrame > xFrame;
 404     OUString aModuleId;
 405     { // SAFE
 406         std::unique_lock g(m_aMutex);
 407         if (m_bDisposed) {
 408             throw css::lang::DisposedException(
 409                 "disposed", static_cast<OWeakObject *>(this));
 410         }
 411
 412         if ( !m_bConfigRead )
 413         {
 414             m_bConfigRead = true;
 415             m_pConfigAccess->readConfigurationData();
 416         }
 417
 418         // Retrieve the frame instance from the arguments to determine the module identifier. This must be provided
 419         // to the search function. An empty module identifier is provided if the frame is missing or the module id cannot
 420         // retrieve from it.
 421         for ( auto const & arg : Args )
 422         {
 423             if ( arg.Name == "Frame")
 424                 arg.Value >>= xFrame;
 425             if (arg.Name == "Module")
 426                 arg.Value >>= aModuleId;
 427         }
 428     } // SAFE
 429
 430     Reference< XModuleManager2 > xManager = ModuleManager::create( m_xContext );
 431
 432     // Determine the module identifier
 433     try
 434     {
 435         if ( aModuleId.isEmpty() && xFrame.is() && xManager.is() )
 436             aModuleId = xManager->identify( Reference<XInterface>( xFrame, UNO_QUERY ) );
 437
 438         Reference< XUIElementFactory > xUIElementFactory = getFactory( ResourceURL, aModuleId );
 439         if ( xUIElementFactory.is() )
 440             return xUIElementFactory->createUIElement( ResourceURL, Args );
 441     }
 442     catch ( const UnknownModuleException& )
 443     {
 444     }
 445
 446     throw NoSuchElementException();
 447 }
 448
 449 // XUIElementFactoryRegistration
 450 Sequence< Sequence< PropertyValue > > SAL_CALL UIElementFactoryManager::getRegisteredFactories()
 451 {
 452     // SAFE
 453     std::unique_lock g(m_aMutex);
 454     if (m_bDisposed) {
 455         throw css::lang::DisposedException(
 456             "disposed", static_cast<OWeakObject *>(this));
 457     }
 458
 459     if ( !m_bConfigRead )
 460     {
 461         m_bConfigRead = true;
 462         m_pConfigAccess->readConfigurationData();
 463     }
 464
 465     return m_pConfigAccess->getFactoriesDescription();
 466 }
 467
 468 Reference< XUIElementFactory > SAL_CALL UIElementFactoryManager::getFactory( const OUString& aResourceURL, const OUString& aModuleId )
 469 {
 470     OUString aServiceSpecifier;
 471     { // SAFE
 472         std::unique_lock g(m_aMutex);
 473         if (m_bDisposed) {
 474             throw css::lang::DisposedException(
 475                 "disposed", static_cast<OWeakObject *>(this));
 476         }
 477
 478         if ( !m_bConfigRead )
 479         {
 480             m_bConfigRead = true;
 481             m_pConfigAccess->readConfigurationData();
 482         }
 483
 484         OUString aType;
 485         OUString aName;
 486         RetrieveTypeNameFromResourceURL( aResourceURL, aType, aName );
 487         aServiceSpecifier = m_pConfigAccess->getFactorySpecifierFromTypeNameModule( aType, aName, aModuleId );
 488     } // SAFE
 489
 490     if ( !aServiceSpecifier.isEmpty() ) try
 491     {
 492         Reference< XUIElementFactory > xFactory(m_xContext->getServiceManager()->
 493                 createInstanceWithContext(aServiceSpecifier, m_xContext), UNO_QUERY);
 494         SAL_WARN_IF(!xFactory.is(), "fwk.uielement", "could not create factory: " << aServiceSpecifier);
 495         return xFactory;
 496     }
 497     catch ( const css::loader::CannotActivateFactoryException& )
 498     {
 499         SAL_WARN("fwk.uielement", aServiceSpecifier <<
 500                 " not available. This should happen only on mobile platforms.");
 501     }
 502     return Reference< XUIElementFactory >();
 503 }
 504
 505 void SAL_CALL UIElementFactoryManager::registerFactory( const OUString& aType, const OUString& aName, const OUString& aModuleId, const OUString& aFactoryImplementationName )
 506 {
 507     // SAFE
 508     std::unique_lock g(m_aMutex);
 509     if (m_bDisposed) {
 510         throw css::lang::DisposedException(
 511             "disposed", static_cast<OWeakObject *>(this));
 512     }
 513
 514     if ( !m_bConfigRead )
 515     {
 516         m_bConfigRead = true;
 517         m_pConfigAccess->readConfigurationData();
 518     }
 519
 520     m_pConfigAccess->addFactorySpecifierToTypeNameModule( aType, aName, aModuleId, aFactoryImplementationName );
 521     // SAFE
 522 }
 523
 524 void SAL_CALL UIElementFactoryManager::deregisterFactory( const OUString& aType, const OUString& aName, const OUString& aModuleId )
 525 {
 526     // SAFE
 527     std::unique_lock g(m_aMutex);
 528     if (m_bDisposed) {
 529         throw css::lang::DisposedException(
 530             "disposed", static_cast<OWeakObject *>(this));
 531     }
 532
 533     if ( !m_bConfigRead )
 534     {
 535         m_bConfigRead = true;
 536         m_pConfigAccess->readConfigurationData();
 537     }
 538
 539     m_pConfigAccess->removeFactorySpecifierFromTypeNameModule( aType, aName, aModuleId );
 540     // SAFE
 541 }
 542
 543 }
 544
 545 extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface *
 546 com_sun_star_comp_framework_UIElementFactoryManager_get_implementation(
 547     css::uno::XComponentContext *context,
 548     css::uno::Sequence<css::uno::Any> const &)
 549 {
 550     return cppu::acquire(new UIElementFactoryManager(context));
 551 }
 552
 553 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */