summaryrefslogtreecommitdiff
path: root/eventattacher/source/eventattacher.cxx
blob: 13745e2447e6fcf1763790636c0128407d4580fa (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
/* -*- 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 <com/sun/star/lang/ServiceNotRegisteredException.hpp>
#include <com/sun/star/lang/XServiceInfo.hpp>
#include <com/sun/star/lang/XInitialization.hpp>
#include <com/sun/star/lang/XMultiServiceFactory.hpp>
#include <com/sun/star/lang/XSingleServiceFactory.hpp>
#include <com/sun/star/registry/XRegistryKey.hpp>
#include <com/sun/star/beans/IntrospectionException.hpp>
#include <com/sun/star/beans/theIntrospection.hpp>
#include <com/sun/star/beans/MethodConcept.hpp>
#include <com/sun/star/script/CannotConvertException.hpp>
#include <com/sun/star/script/CannotCreateAdapterException.hpp>
#include <com/sun/star/script/XEventAttacher2.hpp>
#include <com/sun/star/script/Converter.hpp>
#include <com/sun/star/script/XAllListener.hpp>
#include <com/sun/star/script/InvocationAdapterFactory.hpp>
#include <com/sun/star/reflection/theCoreReflection.hpp>
#include <com/sun/star/reflection/XIdlReflection.hpp>

// InvocationToAllListenerMapper
#include <com/sun/star/script/XInvocation.hpp>
#include <comphelper/processfactory.hxx>
#include <cppuhelper/weak.hxx>
#include <cppuhelper/factory.hxx>
#include <cppuhelper/implbase.hxx>
#include <cppuhelper/supportsservice.hxx>

using namespace com::sun::star::uno;
using namespace com::sun::star::registry;
using namespace com::sun::star::lang;
using namespace com::sun::star::beans;
using namespace com::sun::star::script;
using namespace com::sun::star::reflection;
using namespace cppu;
using namespace osl;


#define SERVICENAME "com.sun.star.script.EventAttacher"
#define IMPLNAME    "com.sun.star.comp.EventAttacher"

namespace comp_EventAttacher {


//  class InvocationToAllListenerMapper
//  helper class to map XInvocation to XAllListener

class InvocationToAllListenerMapper : public WeakImplHelper< XInvocation >
{
public:
    InvocationToAllListenerMapper( const Reference< XIdlClass >& ListenerType,
        const Reference< XAllListener >& AllListener, const Any& Helper );

    // XInvocation
    virtual Reference< XIntrospectionAccess > SAL_CALL getIntrospection() override;
    virtual Any SAL_CALL invoke(const OUString& FunctionName, const Sequence< Any >& Params, Sequence< sal_Int16 >& OutParamIndex, Sequence< Any >& OutParam) override;
    virtual void SAL_CALL setValue(const OUString& PropertyName, const Any& Value) override;
    virtual Any SAL_CALL getValue(const OUString& PropertyName) override;
    virtual sal_Bool SAL_CALL hasMethod(const OUString& Name) override;
    virtual sal_Bool SAL_CALL hasProperty(const OUString& Name) override;

private:
    Reference< XAllListener >    m_xAllListener;
    Reference< XIdlClass >       m_xListenerType;
    Any                          m_Helper;
};


// Function to replace AllListenerAdapterService::createAllListerAdapter
Reference< XInterface > createAllListenerAdapter
(
    const Reference< XInvocationAdapterFactory2 >& xInvocationAdapterFactory,
    const Reference< XIdlClass >& xListenerType,
    const Reference< XAllListener >& xListener,
    const Any& Helper
)
{
    Reference< XInterface > xAdapter;
    if( xInvocationAdapterFactory.is() && xListenerType.is() && xListener.is() )
    {
       Reference< XInvocation > xInvocationToAllListenerMapper =
            static_cast<XInvocation*>(new InvocationToAllListenerMapper( xListenerType, xListener, Helper ));
        Type aListenerType( xListenerType->getTypeClass(), xListenerType->getName());
        Sequence<Type> arg2(1);
        arg2[0] = aListenerType;
        xAdapter = xInvocationAdapterFactory->createAdapter( xInvocationToAllListenerMapper, arg2 );
    }
    return xAdapter;
}


// InvocationToAllListenerMapper
InvocationToAllListenerMapper::InvocationToAllListenerMapper
    ( const Reference< XIdlClass >& ListenerType, const Reference< XAllListener >& AllListener, const Any& Helper )
        : m_xAllListener( AllListener )
        , m_xListenerType( ListenerType )
        , m_Helper( Helper )
{
}


Reference< XIntrospectionAccess > SAL_CALL InvocationToAllListenerMapper::getIntrospection()
{
    return Reference< XIntrospectionAccess >();
}


Any SAL_CALL InvocationToAllListenerMapper::invoke(const OUString& FunctionName, const Sequence< Any >& Params,
    Sequence< sal_Int16 >& , Sequence< Any >& )
{
    Any aRet;

    // Check if to firing or approveFiring has to be called
    Reference< XIdlMethod > xMethod = m_xListenerType->getMethod( FunctionName );
    bool bApproveFiring = false;
    if( !xMethod.is() )
        return aRet;
    Reference< XIdlClass > xReturnType = xMethod->getReturnType();
    Sequence< Reference< XIdlClass > > aExceptionSeq = xMethod->getExceptionTypes();
    if( ( xReturnType.is() && xReturnType->getTypeClass() != TypeClass_VOID ) ||
        aExceptionSeq.getLength() > 0 )
    {
        bApproveFiring = true;
    }
    else
    {
        Sequence< ParamInfo > aParamSeq = xMethod->getParameterInfos();
        sal_uInt32 nParamCount = aParamSeq.getLength();
        if( nParamCount > 1 )
        {
            const ParamInfo* pInfo = aParamSeq.getConstArray();
            for( sal_uInt32 i = 0 ; i < nParamCount ; i++ )
            {
                if( pInfo[ i ].aMode != ParamMode_IN )
                {
                    bApproveFiring = true;
                    break;
                }
            }
        }
    }

    AllEventObject aAllEvent;
    aAllEvent.Source = static_cast<OWeakObject*>(this);
    aAllEvent.Helper = m_Helper;
    aAllEvent.ListenerType = Type(m_xListenerType->getTypeClass(), m_xListenerType->getName());
    aAllEvent.MethodName = FunctionName;
    aAllEvent.Arguments = Params;
    if( bApproveFiring )
        aRet = m_xAllListener->approveFiring( aAllEvent );
    else
        m_xAllListener->firing( aAllEvent );
    return aRet;
}


void SAL_CALL InvocationToAllListenerMapper::setValue(const OUString& , const Any& )
{
}


Any SAL_CALL InvocationToAllListenerMapper::getValue(const OUString& )
{
    return Any();
}


sal_Bool SAL_CALL InvocationToAllListenerMapper::hasMethod(const OUString& Name)
{
    Reference< XIdlMethod > xMethod = m_xListenerType->getMethod( Name );
    return xMethod.is();
}


sal_Bool SAL_CALL InvocationToAllListenerMapper::hasProperty(const OUString& Name)
{
    Reference< XIdlField > xField = m_xListenerType->getField( Name );
    return xField.is();
}


//  class EventAttacherImpl
//  represents an implementation of the EventAttacher service

class EventAttacherImpl : public WeakImplHelper < XEventAttacher2, XInitialization, XServiceInfo >
{
public:
    explicit EventAttacherImpl( const Reference< XComponentContext >& );

    // XServiceInfo
    virtual OUString SAL_CALL getImplementationName(  ) override;
    virtual sal_Bool SAL_CALL supportsService( const OUString& ServiceName ) override;
    virtual Sequence< OUString > SAL_CALL getSupportedServiceNames(  ) override;
    static Sequence< OUString > SAL_CALL getSupportedServiceNames_Static(  );

    // XInitialization
    virtual void SAL_CALL initialize( const Sequence< Any >& aArguments ) override;

    // Methoden von XEventAttacher
    virtual Reference< XEventListener > SAL_CALL attachListener(const Reference< XInterface >& xObject,
            const Reference< XAllListener >& AllListener, const Any& Helper,
            const OUString& ListenerType, const OUString& AddListenerParam) override;
    virtual Reference< XEventListener > SAL_CALL attachSingleEventListener(const Reference< XInterface >& xObject,
            const Reference< XAllListener >& AllListener, const Any& Helper,
            const OUString& ListenerType, const OUString& AddListenerParam,
            const OUString& EventMethod) override;
    virtual void SAL_CALL removeListener(const Reference< XInterface >& xObject,
            const OUString& ListenerType, const OUString& AddListenerParam,
            const Reference< XEventListener >& aToRemoveListener) override;

    // XEventAttacher2
    virtual Sequence< Reference<XEventListener> > SAL_CALL attachMultipleEventListeners(
        const Reference<XInterface>& xObject, const Sequence<css::script::EventListener>& aListeners ) override;

    // used by FilterAllListener_Impl
    /// @throws Exception
    Reference< XTypeConverter > getConverter();

    friend class FilterAllListenerImpl;

private:
    static Reference<XEventListener> attachListenerForTarget(
        const Reference<XIntrospectionAccess>& xAccess,
        const Reference<XInvocationAdapterFactory2>& xInvocationAdapterFactory,
        const Reference<XAllListener>& xAllListener,
        const Any& aObject,
        const Any& aHelper,
        const OUString& aListenerType,
        const OUString& aAddListenerParam );

    Sequence< Reference<XEventListener> > attachListeners(
        const Reference<XInterface>& xObject,
        const Sequence< Reference<XAllListener> >& AllListeners,
        const Sequence<css::script::EventListener>& aListeners );

private:
    Mutex                               m_aMutex;
    Reference< XComponentContext >      m_xContext;

    // Save Services
    Reference< XIntrospection >             m_xIntrospection;
    Reference< XIdlReflection >             m_xReflection;
    Reference< XTypeConverter >             m_xConverter;
    Reference< XInvocationAdapterFactory2 >  m_xInvocationAdapterFactory;

    // needed services
    /// @throws Exception
    Reference< XIntrospection >             getIntrospection();
    /// @throws Exception
    Reference< XIdlReflection >             getReflection();
    /// @throws Exception
    Reference< XInvocationAdapterFactory2 >  getInvocationAdapterService();
};


EventAttacherImpl::EventAttacherImpl( const Reference< XComponentContext >& rxContext )
    : m_xContext( rxContext )
{
}

/// @throws Exception
Reference< XInterface > SAL_CALL EventAttacherImpl_CreateInstance( const Reference< XMultiServiceFactory >& rSMgr )
{
    XEventAttacher *pEventAttacher = static_cast<XEventAttacher*>(new EventAttacherImpl( comphelper::getComponentContext(rSMgr) ));

    Reference< XInterface > xRet(pEventAttacher, UNO_QUERY);

    return xRet;
}


OUString SAL_CALL EventAttacherImpl::getImplementationName(  )
{
    return OUString(  IMPLNAME  );
}

sal_Bool SAL_CALL EventAttacherImpl::supportsService( const OUString& ServiceName )
{
    return cppu::supportsService(this, ServiceName);
}

Sequence<OUString> SAL_CALL EventAttacherImpl::getSupportedServiceNames(  )
{
    return getSupportedServiceNames_Static();
}


Sequence<OUString> SAL_CALL EventAttacherImpl::getSupportedServiceNames_Static(  )
{
    OUString aStr(  SERVICENAME  );
    return Sequence< OUString >( &aStr, 1 );
}

void SAL_CALL EventAttacherImpl::initialize(const Sequence< Any >& Arguments)
{
    // get services from the argument list
    const Any * pArray = Arguments.getConstArray();
    for( sal_Int32 i = 0; i < Arguments.getLength(); i++ )
    {
        if( pArray[i].getValueType().getTypeClass() != TypeClass_INTERFACE )
            throw IllegalArgumentException();

        // InvocationAdapter service ?
        Reference< XInvocationAdapterFactory2 > xALAS;
        pArray[i] >>= xALAS;
        if( xALAS.is() )
        {
            Guard< Mutex > aGuard( m_aMutex );
            m_xInvocationAdapterFactory = xALAS;
        }
        // Introspection service ?
        Reference< XIntrospection > xI;
        pArray[i] >>= xI;
        if( xI.is() )
        {
            Guard< Mutex > aGuard( m_aMutex );
            m_xIntrospection = xI;
        }
        // Reflection service ?
        Reference< XIdlReflection > xIdlR;
        pArray[i] >>= xIdlR;
        if( xIdlR.is() )
        {
            Guard< Mutex > aGuard( m_aMutex );
            m_xReflection = xIdlR;
        }
        // Converter Service ?
        Reference< XTypeConverter > xC;
        pArray[i] >>= xC;
        if( xC.is() )
        {
            Guard< Mutex > aGuard( m_aMutex );
            m_xConverter = xC;
        }

        // no right interface
        if( !xALAS.is() && !xI.is() && !xIdlR.is() && !xC.is() )
            throw IllegalArgumentException();
    }
}


//*** Private helper methods ***
Reference< XIntrospection > EventAttacherImpl::getIntrospection()
{
    Guard< Mutex > aGuard( m_aMutex );
    if( !m_xIntrospection.is() )
    {
        m_xIntrospection = theIntrospection::get( m_xContext );
    }
    return m_xIntrospection;
}


//*** Private helper methods ***
Reference< XIdlReflection > EventAttacherImpl::getReflection()
{
    Guard< Mutex > aGuard( m_aMutex );
    if( !m_xReflection.is() )
    {
        m_xReflection = theCoreReflection::get(m_xContext);
    }
    return m_xReflection;
}


//*** Private helper methods ***
Reference< XInvocationAdapterFactory2 > EventAttacherImpl::getInvocationAdapterService()
{
    Guard< Mutex > aGuard( m_aMutex );
    if( !m_xInvocationAdapterFactory.is() )
    {
        m_xInvocationAdapterFactory = InvocationAdapterFactory::create(m_xContext);
    }
    return m_xInvocationAdapterFactory;
}


//*** Private helper methods ***
Reference< XTypeConverter > EventAttacherImpl::getConverter()
{
    Guard< Mutex > aGuard( m_aMutex );
    if( !m_xConverter.is() )
    {
        m_xConverter = Converter::create(m_xContext);
    }
    return m_xConverter;
}


// Implementation of an EventAttacher-related AllListeners, which brings
// a few Events to a general AllListener
class FilterAllListenerImpl : public WeakImplHelper< XAllListener  >
{
public:
    FilterAllListenerImpl( EventAttacherImpl * pEA_, const OUString& EventMethod_,
                           const Reference< XAllListener >& AllListener_ );

    // XAllListener
    virtual void SAL_CALL firing(const AllEventObject& Event) override;
    virtual Any SAL_CALL approveFiring(const AllEventObject& Event) override;

    // XEventListener
    virtual void SAL_CALL disposing(const EventObject& Source) override;

private:
    // convert
    /// @throws CannotConvertException
    /// @throws RuntimeException
    void convertToEventReturn( Any & rRet, const Type& rRetType );

    EventAttacherImpl *         m_pEA;
    OUString                    m_EventMethod;
    Reference< XAllListener >   m_AllListener;
};


FilterAllListenerImpl::FilterAllListenerImpl( EventAttacherImpl * pEA_, const OUString& EventMethod_,
                                              const Reference< XAllListener >& AllListener_ )
        : m_pEA( pEA_ )
        , m_EventMethod( EventMethod_ )
        , m_AllListener( AllListener_ )
{
}


void SAL_CALL FilterAllListenerImpl::firing(const AllEventObject& Event)
{
    if( Event.MethodName == m_EventMethod && m_AllListener.is() )
        m_AllListener->firing( Event );
}

// Convert to the standard event return
void FilterAllListenerImpl::convertToEventReturn( Any & rRet, const Type & rRetType )
{
    // no return value? Set to the specified values
    if( rRet.getValueType().getTypeClass() == TypeClass_VOID )
    {
        switch( rRetType.getTypeClass()  )
        {
            case TypeClass_INTERFACE:
                {
                rRet <<= Reference< XInterface >();
                }
                break;

            case TypeClass_BOOLEAN:
                rRet <<= true;
                break;

            case TypeClass_STRING:
                rRet <<= OUString();
                break;

            case TypeClass_FLOAT:           rRet <<= float(0);  break;
            case TypeClass_DOUBLE:          rRet <<= double(0.0);   break;
            case TypeClass_BYTE:            rRet <<= sal_uInt8( 0 );    break;
            case TypeClass_SHORT:           rRet <<= sal_Int16( 0 );    break;
            case TypeClass_LONG:            rRet <<= sal_Int32( 0 );    break;
            case TypeClass_UNSIGNED_SHORT:  rRet <<= sal_uInt16( 0 );   break;
            case TypeClass_UNSIGNED_LONG:   rRet <<= sal_uInt32( 0 );   break;
                     default:
            break;
        }
    }
    else if( !rRet.getValueType().equals( rRetType ) )
    {
        Reference< XTypeConverter > xConverter = m_pEA->getConverter();
        if( xConverter.is() )
            rRet = xConverter->convertTo( rRet, rRetType );
        else
            throw CannotConvertException(); // TODO TypeConversionException
    }
}


Any SAL_CALL FilterAllListenerImpl::approveFiring( const AllEventObject& Event )
{
    Any aRet;

    if( Event.MethodName == m_EventMethod && m_AllListener.is() )
        aRet = m_AllListener->approveFiring( Event );
    else
    {
        // Convert to the standard event return
        try
        {
            Reference< XIdlClass > xListenerType = m_pEA->getReflection()->
                        forName( Event.ListenerType.getTypeName() );
            Reference< XIdlMethod > xMeth = xListenerType->getMethod( Event.MethodName );
            if( xMeth.is() )
            {
                Reference< XIdlClass > xRetType = xMeth->getReturnType();
                Type aRetType( xRetType->getTypeClass(), xRetType->getName() );
                convertToEventReturn( aRet, aRetType );
            }
        }
        catch( const CannotConvertException& e )
        {
            throw InvocationTargetException( OUString(), Reference< XInterface >(), Any(&e, cppu::UnoType<CannotConvertException>::get()) );
        }
    }
    return aRet;
}


void FilterAllListenerImpl::disposing(const EventObject& )
{
    // TODO: ???
}


Reference< XEventListener > EventAttacherImpl::attachListener
(
    const Reference< XInterface >& xObject,
    const Reference< XAllListener >& AllListener,
    const Any& Helper,
    const OUString& ListenerType,
    const OUString& AddListenerParam
)
{
    if( !xObject.is() || !AllListener.is() )
        throw IllegalArgumentException();

    Reference< XInvocationAdapterFactory2 > xInvocationAdapterFactory = getInvocationAdapterService();
    if( !xInvocationAdapterFactory.is() )
        throw ServiceNotRegisteredException();

    Reference< XIdlReflection > xReflection = getReflection();
    if( !xReflection.is() )
        throw ServiceNotRegisteredException();

    // Sign in, Call the fitting addListener method
    // First Introspection, as the Methods can be analyzed in the same way
    // For better performance it is implemented here again or make the Impl-Method
    // of the Introspection configurable for this purpose.
    Reference< XIntrospection > xIntrospection = getIntrospection();
    if( !xIntrospection.is() )
        return Reference<XEventListener>();

    // Inspect Introspection
    Any aObjAny( &xObject, cppu::UnoType<XInterface>::get());

    Reference< XIntrospectionAccess > xAccess = xIntrospection->inspect( aObjAny );
    if( !xAccess.is() )
        return Reference<XEventListener>();

    return attachListenerForTarget(
        xAccess, xInvocationAdapterFactory, AllListener, aObjAny, Helper,
        ListenerType, AddListenerParam);
}

Reference<XEventListener> EventAttacherImpl::attachListenerForTarget(
    const Reference<XIntrospectionAccess>& xAccess,
    const Reference<XInvocationAdapterFactory2>& xInvocationAdapterFactory,
    const Reference<XAllListener>& xAllListener,
    const Any& aObject,
    const Any& aHelper,
    const OUString& aListenerType,
    const OUString& aAddListenerParam)
{
    Reference< XEventListener > xRet = nullptr;

    // Construct the name of the addListener-Method.
    sal_Int32 nIndex = aListenerType.lastIndexOf('.');
    // set index to the interface name without package name
    if( nIndex == -1 )
        // not found
        nIndex = 0;
    else
        nIndex++;

    OUString aListenerName = (!aListenerType.isEmpty() && aListenerType[nIndex] == 'X') ? aListenerType.copy(nIndex+1) : aListenerType;
    OUString aAddListenerName = "add" + aListenerName;

    // Send Methods to the correct addListener-Method
    Sequence< Reference< XIdlMethod > > aMethodSeq = xAccess->getMethods( MethodConcept::LISTENER );
    const Reference< XIdlMethod >* pMethods = aMethodSeq.getConstArray();
    for (sal_Int32 i = 0, n = aMethodSeq.getLength(); i < n ; ++i)
    {
        const Reference< XIdlMethod >& rxMethod = pMethods[i];

        // Is it the correct method?
        OUString aMethName = rxMethod->getName();

        if (aAddListenerName != aMethName)
            continue;

        Sequence< Reference< XIdlClass > > params = rxMethod->getParameterTypes();
        sal_uInt32 nParamCount = params.getLength();

        Reference< XIdlClass > xListenerType;
        if( nParamCount == 1 )
            xListenerType = params.getConstArray()[0];
        else if( nParamCount == 2 )
            xListenerType = params.getConstArray()[1];

        // Request Adapter for the actual Listener type
        Reference< XInterface > xAdapter = createAllListenerAdapter(
            xInvocationAdapterFactory, xListenerType, xAllListener, aHelper );

        if( !xAdapter.is() )
            throw CannotCreateAdapterException();
        xRet.set( xAdapter, UNO_QUERY );

        // Just the Listener as parameter?
        if( nParamCount == 1 )
        {
            Sequence< Any > args( 1 );
            args.getArray()[0] <<= xAdapter;
            try
            {
                rxMethod->invoke( aObject, args );
            }
            catch( const InvocationTargetException& )
            {
                throw IntrospectionException();
            }
        }
        // Else, pass the other parameter now
        else if( nParamCount == 2 )
        {
            Sequence< Any > args( 2 );
            Any* pAnys = args.getArray();

            // Check the type of the 1st parameter
            Reference< XIdlClass > xParamClass = params.getConstArray()[0];
            if( xParamClass->getTypeClass() == TypeClass_STRING )
            {
                pAnys[0] <<= aAddListenerParam;
            }

            // 2nd Parameter == Listener? TODO: Test!
            pAnys[1] <<= xAdapter;

            // TODO: Convert String -> ?
            // else
            try
            {
                rxMethod->invoke( aObject, args );
            }
            catch( const InvocationTargetException& )
            {
                throw IntrospectionException();
            }
        }
        break;
        // else...
        // Anything else is not supported
    }

    return xRet;
}

Sequence< Reference<XEventListener> > EventAttacherImpl::attachListeners(
    const Reference<XInterface>& xObject,
    const Sequence< Reference<XAllListener> >& AllListeners,
    const Sequence<css::script::EventListener>& aListeners )
{
    sal_Int32 nCount = aListeners.getLength();
    if (nCount != AllListeners.getLength())
        // This is a prerequisite!
        throw RuntimeException();

    if (!xObject.is())
        throw IllegalArgumentException();

    Reference< XInvocationAdapterFactory2 > xInvocationAdapterFactory = getInvocationAdapterService();
    if( !xInvocationAdapterFactory.is() )
        throw ServiceNotRegisteredException();

    Reference< XIdlReflection > xReflection = getReflection();
    if( !xReflection.is() )
        throw ServiceNotRegisteredException();

    // Sign in, Call the fitting addListener method
    // First Introspection, as the Methods can be analyzed in the same way
    // For better performance it is implemented here again or make the Impl-Method
    // of the Introspection configurable for this purpose.
    Reference< XIntrospection > xIntrospection = getIntrospection();
    if( !xIntrospection.is() )
        return Sequence< Reference<XEventListener> >();

    // Inspect Introspection
    Any aObjAny( &xObject, cppu::UnoType<XInterface>::get() );

    Reference<XIntrospectionAccess> xAccess = xIntrospection->inspect(aObjAny);
    if (!xAccess.is())
        return Sequence< Reference<XEventListener> >();

    Sequence< Reference<XEventListener> > aRet(nCount);
    Reference<XEventListener>* pArray = aRet.getArray();

    for (sal_Int32 i = 0; i < nCount; ++i)
    {
        pArray[i] = attachListenerForTarget(
            xAccess, xInvocationAdapterFactory, AllListeners[ i ],
            aObjAny, aListeners[i].Helper, aListeners[i].ListenerType, aListeners[i].AddListenerParam);
    }

    return aRet;
}

// XEventAttacher
Reference< XEventListener > EventAttacherImpl::attachSingleEventListener
(
    const Reference< XInterface >& xObject,
    const Reference< XAllListener >& AllListener,
    const Any& Helper,
    const OUString& ListenerType,
    const OUString& AddListenerParam,
    const OUString& EventMethod
)
{
    // Subscribe FilterListener
    Reference< XAllListener > aFilterListener = static_cast<XAllListener*>(
        new FilterAllListenerImpl( this, EventMethod, AllListener ));
    return attachListener( xObject, aFilterListener, Helper, ListenerType, AddListenerParam);
}

// XEventAttacher
void EventAttacherImpl::removeListener
(
    const Reference< XInterface >& xObject,
    const OUString& ListenerType,
    const OUString& AddListenerParam,
    const Reference< XEventListener >& aToRemoveListener
)
{
    if( !xObject.is() || !aToRemoveListener.is() )
        throw IllegalArgumentException();

    Reference< XIdlReflection > xReflection = getReflection();
    if( !xReflection.is() )
        throw IntrospectionException();

    // Sign off, Call the fitting removeListener method
    // First Introspection, as the Methods can be analyzed in the same way
    // For better performance it is implemented here again or make the Impl-Method
    // of the Introspection configurable for this purpose.
    Reference< XIntrospection > xIntrospection = getIntrospection();
    if( !xIntrospection.is() )
        throw IntrospectionException();

    //Inspect Introspection
    Any aObjAny( &xObject, cppu::UnoType<XInterface>::get());
    Reference< XIntrospectionAccess > xAccess = xIntrospection->inspect( aObjAny );
    if( !xAccess.is() )
        throw IntrospectionException();

    // Create name of the removeListener-Method
    OUString aRemoveListenerName;
    OUString aListenerName( ListenerType );
    sal_Int32 nIndex = aListenerName.lastIndexOf( '.' );
    // set index to the interface name without package name
    if( nIndex == -1 )
        // not found
        nIndex = 0;
    else
        nIndex++;
    if( aListenerName[nIndex] == 'X' )
        // erase X from the interface name
        aListenerName = aListenerName.copy( nIndex +1 );
    aRemoveListenerName = "remove" + aListenerName;

    // Search methods for the correct removeListener method
    Sequence< Reference< XIdlMethod > > aMethodSeq = xAccess->getMethods( MethodConcept::LISTENER );
    sal_uInt32 i, nLen = aMethodSeq.getLength();
    const Reference< XIdlMethod >* pMethods = aMethodSeq.getConstArray();
    for( i = 0 ; i < nLen ; i++ )
    {
        // Call Method
        const Reference< XIdlMethod >& rxMethod = pMethods[i];

        // Is it the right method?
        if( aRemoveListenerName == rxMethod->getName() )
        {
            Sequence< Reference< XIdlClass > > params = rxMethod->getParameterTypes();
            sal_uInt32 nParamCount = params.getLength();

            // Just the Listener as parameter?
            if( nParamCount == 1 )
            {
                Sequence< Any > args( 1 );
                args.getArray()[0] <<= aToRemoveListener;
                try
                {
                    rxMethod->invoke( aObjAny, args );
                }
                catch( const InvocationTargetException& )
                {
                    throw IntrospectionException();
                }
            }
            // Else pass the other parameter
            else if( nParamCount == 2 )
            {
                Sequence< Any > args( 2 );
                Any* pAnys = args.getArray();

                // Check the type of the 1st parameter
                Reference< XIdlClass > xParamClass = params.getConstArray()[0];
                if( xParamClass->getTypeClass() == TypeClass_STRING )
                    pAnys[0] <<= AddListenerParam;

                // 2nd parameter == Listener? TODO: Test!
                pAnys[1] <<= aToRemoveListener;

                // TODO: Convert String -> ?
                // else
                try
                {
                    rxMethod->invoke( aObjAny, args );
                }
                catch( const InvocationTargetException& )
                {
                    throw IntrospectionException();
                }
            }
            break;
        }
    }
}

Sequence< Reference<XEventListener> > EventAttacherImpl::attachMultipleEventListeners(
    const Reference<XInterface>& xObject, const Sequence<css::script::EventListener>& aListeners )
{
    sal_Int32 nCount = aListeners.getLength();
    Sequence< Reference<XAllListener> > aFilterListeners(nCount);
    for (sal_Int32 i = 0; i < nCount; ++i)
    {
        aFilterListeners[i] = static_cast<XAllListener*>(
            new FilterAllListenerImpl(this, aListeners[i].EventMethod, aListeners[i].AllListener));
    }

    return attachListeners(xObject, aFilterListeners, aListeners);
}

}

extern "C"
{
SAL_DLLPUBLIC_EXPORT void * SAL_CALL evtatt_component_getFactory(
    const sal_Char * pImplName, void * pServiceManager, void * )
{
    void * pRet = nullptr;

    if (pServiceManager && rtl_str_compare( pImplName, IMPLNAME ) == 0)
    {
        Reference< XSingleServiceFactory > xFactory( createOneInstanceFactory(
            static_cast< XMultiServiceFactory * >( pServiceManager ),
            IMPLNAME,
            ::comp_EventAttacher::EventAttacherImpl_CreateInstance,
            ::comp_EventAttacher::EventAttacherImpl::getSupportedServiceNames_Static() ) );

        if (xFactory.is())
        {
            xFactory->acquire();
            pRet = xFactory.get();
        }
    }

    return pRet;
}
}


/* vim:set shiftwidth=4 softtabstop=4 expandtab: */