summaryrefslogtreecommitdiff
path: root/vcl/unx/source/app/i18n_ic.cxx
blob: 59fb02f1919a895558fdf5741e5e9ca695705975 (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
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*************************************************************************
 *
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * Copyright 2000, 2010 Oracle and/or its affiliates.
 *
 * OpenOffice.org - a multi-platform office productivity suite
 *
 * This file is part of OpenOffice.org.
 *
 * OpenOffice.org is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License version 3
 * only, as published by the Free Software Foundation.
 *
 * OpenOffice.org is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License version 3 for more details
 * (a copy is included in the LICENSE file that accompanied this code).
 *
 * You should have received a copy of the GNU Lesser General Public License
 * version 3 along with OpenOffice.org.  If not, see
 * <http://www.openoffice.org/license.html>
 * for a copy of the LGPLv3 License.
 *
 ************************************************************************/

// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_vcl.hxx"

#include <stdio.h>
#include <sal/alloca.h>

#include <tools/prex.h>
#include <X11/Xlocale.h>
#include <X11/Xlib.h>
#include <tools/postx.h>

#include <salunx.h>

#include <XIM.h>
#include <i18n_ic.hxx>
#include <i18n_im.hxx>
#include <i18n_status.hxx>

#include <salframe.h>
#include <saldata.hxx>
#include <saldisp.hxx>

#include <osl/thread.h>

using namespace vcl;

static void sendEmptyCommit( SalFrame* pFrame )
{
    vcl::DeletionListener aDel( pFrame );

    SalExtTextInputEvent aEmptyEv;
    aEmptyEv.mnTime             = 0;
    aEmptyEv.mpTextAttr         = 0;
    aEmptyEv.maText             = String();
    aEmptyEv.mnCursorPos        = 0;
    aEmptyEv.mnCursorFlags      = 0;
    aEmptyEv.mnDeltaStart       = 0;
    aEmptyEv.mbOnlyCursor       = False;
    pFrame->CallCallback( SALEVENT_EXTTEXTINPUT, (void*)&aEmptyEv );
    if( ! aDel.isDeleted() )
        pFrame->CallCallback( SALEVENT_ENDEXTTEXTINPUT, NULL );
}

// ---------------------------------------------------------------------------
//
// Constructor / Destructor, the InputContext is bound to the SalFrame, as it
// needs the shell window as a focus window
//
// ----------------------------------------------------------------------------

SalI18N_InputContext::~SalI18N_InputContext()
{
    if ( maContext != NULL )
        XDestroyIC( maContext );
    if ( mpAttributes != NULL )
        XFree( mpAttributes );
    if ( mpStatusAttributes != NULL )
        XFree( mpStatusAttributes );
    if ( mpPreeditAttributes != NULL )
        XFree( mpPreeditAttributes );

    if (maClientData.aText.pUnicodeBuffer != NULL)
        free(maClientData.aText.pUnicodeBuffer);
    if (maClientData.aText.pCharStyle != NULL)
        free(maClientData.aText.pCharStyle);
}

// ----------------------------------------------------------------------------
// convenience routine to add items to a XVaNestedList
// ----------------------------------------------------------------------------

static XVaNestedList
XVaAddToNestedList( XVaNestedList a_srclist, char* name, XPointer value )
{
    XVaNestedList a_dstlist;

    // if ( value == NULL )
    //  return a_srclist;

    if ( a_srclist == NULL )
    {
        a_dstlist = XVaCreateNestedList(
                                        0,
                                        name,           value,
                                        NULL );
    }
    else
    {
        a_dstlist = XVaCreateNestedList(
                                        0,
                                        XNVaNestedList, a_srclist,
                                        name,           value,
                                        NULL );
    }

    return a_dstlist != NULL ? a_dstlist : a_srclist ;
}

// ----------------------------------------------------------------------------
// convenience routine to create a fontset
// ----------------------------------------------------------------------------

static XFontSet
get_font_set( Display *p_display )
{
    static XFontSet p_font_set = NULL;

    if (p_font_set == NULL)
    {
        char **pp_missing_list;
        int    n_missing_count;
        char  *p_default_string;

        p_font_set = XCreateFontSet(p_display, "-*",
                                    &pp_missing_list, &n_missing_count, &p_default_string);
    }

    return p_font_set;
}

// ---------------------------------------------------------------------------
//
// Constructor for a InputContext (IC)
//
// ----------------------------------------------------------------------------

SalI18N_InputContext::SalI18N_InputContext ( SalFrame *pFrame ) :
        mbUseable( True ),
        maContext( (XIC)NULL ),
        mnSupportedStatusStyle(
                               XIMStatusCallbacks   |
                               XIMStatusNothing     |
                               XIMStatusNone
                               ),
        mnSupportedPreeditStyle(
                                XIMPreeditCallbacks |
                                XIMPreeditNothing   |
                                XIMPreeditNone
                                ),
        mnStatusStyle( 0 ),
        mnPreeditStyle( 0 ),
        mpAttributes( NULL ),
        mpStatusAttributes( NULL ),
        mpPreeditAttributes( NULL )
{
#ifdef SOLARIS
    static const char* pIIIMPEnable = getenv( "SAL_DISABLE_OWN_IM_STATUS" );
    if( pIIIMPEnable && *pIIIMPEnable )
        mnSupportedStatusStyle &= ~XIMStatusCallbacks;
#endif

    maClientData.aText.pUnicodeBuffer       = NULL;
    maClientData.aText.pCharStyle           = NULL;
    maClientData.aInputEv.mnTime            = 0;
    maClientData.aInputEv.mpTextAttr        = NULL;
    maClientData.aInputEv.mnCursorPos       = 0;
    maClientData.aInputEv.mnDeltaStart      = 0;
    maClientData.aInputEv.mnCursorFlags     = 0;
    maClientData.aInputEv.mbOnlyCursor      = FALSE;

    SalI18N_InputMethod *pInputMethod;
    pInputMethod = GetX11SalData()->GetDisplay()->GetInputMethod();
    mbMultiLingual = pInputMethod->IsMultiLingual();

    mnSupportedPreeditStyle =   XIMPreeditCallbacks | XIMPreeditPosition
        | XIMPreeditNothing   | XIMPreeditNone;
    if (pInputMethod->UseMethod()
        && SupportInputMethodStyle( pInputMethod->GetSupportedStyles() ) )
    {
        const SystemEnvData* pEnv = pFrame->GetSystemData();
        XLIB_Window  aClientWindow = pEnv->aShellWindow;
        XLIB_Window  aFocusWindow  = pEnv->aWindow;

        // for status callbacks and commit string callbacks
#define PREEDIT_BUFSZ 16
        maClientData.bIsMultilingual        = mbMultiLingual;
        maClientData.eState                 = ePreeditStatusStartPending;
        maClientData.pFrame                 = pFrame;
        maClientData.aText.pUnicodeBuffer   =
            (sal_Unicode*)malloc(PREEDIT_BUFSZ * sizeof(sal_Unicode));
        maClientData.aText.pCharStyle       =
            (XIMFeedback*)malloc(PREEDIT_BUFSZ * sizeof(XIMFeedback));;
        maClientData.aText.nSize            = PREEDIT_BUFSZ;
        maClientData.aText.nCursorPos       = 0;
        maClientData.aText.nLength          = 0;

        //
        // Status attributes
        //

        switch ( mnStatusStyle )
        {
            case XIMStatusCallbacks:
            {
                static XIMCallback aStatusStartCallback;
                static XIMCallback aStatusDoneCallback;
                static XIMCallback aStatusDrawCallback;

                aStatusStartCallback.callback    = (XIMProc)StatusStartCallback;
                aStatusStartCallback.client_data = (XPointer)&maClientData;
                aStatusDoneCallback.callback     = (XIMProc)StatusDoneCallback;
                aStatusDoneCallback.client_data  = (XPointer)&maClientData;
                aStatusDrawCallback.callback     = (XIMProc)StatusDrawCallback;
                aStatusDrawCallback.client_data  = (XPointer)&maClientData;

                mpStatusAttributes = XVaCreateNestedList (
                                                          0,
                                                          XNStatusStartCallback, &aStatusStartCallback,
                                                          XNStatusDoneCallback,  &aStatusDoneCallback,
                                                          XNStatusDrawCallback,  &aStatusDrawCallback,
                                                          NULL );

                break;
            }

            case XIMStatusArea:
                /* not supported */
                break;

            case XIMStatusNone:
            case XIMStatusNothing:
            default:
                /* no arguments needed */
                break;
        }

        //
        // set preedit attributes
        //

        switch ( mnPreeditStyle )
        {
            case XIMPreeditCallbacks:

                maPreeditCaretCallback.callback = (XIMProc)PreeditCaretCallback;
                maPreeditStartCallback.callback = (XIMProc)PreeditStartCallback;
                maPreeditDoneCallback.callback  = (XIMProc)PreeditDoneCallback;
                maPreeditDrawCallback.callback  = (XIMProc)PreeditDrawCallback;
                maPreeditCaretCallback.client_data = (XPointer)&maClientData;
                maPreeditStartCallback.client_data = (XPointer)&maClientData;
                maPreeditDoneCallback.client_data  = (XPointer)&maClientData;
                maPreeditDrawCallback.client_data  = (XPointer)&maClientData;

                mpPreeditAttributes = XVaCreateNestedList (
                                                           0,
                                                           XNPreeditStartCallback, &maPreeditStartCallback,
                                                           XNPreeditDoneCallback,  &maPreeditDoneCallback,
                                                           XNPreeditDrawCallback,   &maPreeditDrawCallback,
                                                           XNPreeditCaretCallback, &maPreeditCaretCallback,
                                                           NULL );

                break;

            case XIMPreeditArea:
                /* not supported */
                break;

            case XIMPreeditPosition:
            {
                // spot location
                SalExtTextInputPosEvent aPosEvent;
                pFrame->CallCallback(SALEVENT_EXTTEXTINPUTPOS, (void*)&aPosEvent);

                static XPoint aSpot;
                aSpot.x = aPosEvent.mnX + aPosEvent.mnWidth;
                aSpot.y = aPosEvent.mnY + aPosEvent.mnHeight;

                // create attributes for preedit position style
                mpPreeditAttributes = XVaCreateNestedList (
                                                           0,
                                                           XNSpotLocation, &aSpot,
                                                           NULL );

                // XCreateIC() fails on Redflag Linux 2.0 if there is no
                // fontset though the data itself is not evaluated nor is
                // it required according to the X specs.
                Display* pDisplay = GetX11SalData()->GetDisplay()->GetDisplay();
                XFontSet pFontSet = get_font_set(pDisplay);

                if (pFontSet != NULL)
                {
                    mpPreeditAttributes = XVaAddToNestedList( mpPreeditAttributes,
                                                              const_cast<char*>(XNFontSet), (XPointer)pFontSet);
                }

                break;
            }

            case XIMPreeditNone:
            case XIMPreeditNothing:
            default:
                /* no arguments needed */
                break;
        }

        // Create the InputContext by giving it exactly the information it
        // deserves, because inappropriate attributes
        // let XCreateIC fail on Solaris (eg. for C locale)

        mpAttributes = XVaCreateNestedList(
                                           0,
                                           XNFocusWindow,       aFocusWindow,
                                           XNClientWindow,      aClientWindow,
                                           XNInputStyle,        mnPreeditStyle | mnStatusStyle,
                                           NULL );

        if ( mnPreeditStyle != XIMPreeditNone )
        {
#if defined LINUX || defined FREEBSD || defined NETBSD
            if ( mpPreeditAttributes != NULL )
#endif
                mpAttributes = XVaAddToNestedList( mpAttributes,
                                                   const_cast<char*>(XNPreeditAttributes), (XPointer)mpPreeditAttributes );
        }
        if ( mnStatusStyle != XIMStatusNone )
        {
#if defined LINUX || defined FREEBSD || defined NETBSD
            if ( mpStatusAttributes != NULL )
#endif
                mpAttributes = XVaAddToNestedList( mpAttributes,
                                                   const_cast<char*>(XNStatusAttributes), (XPointer)mpStatusAttributes );
        }
        maContext = XCreateIC( pInputMethod->GetMethod(),
                               XNVaNestedList, mpAttributes,
                               NULL );
    }

    if ( maContext == NULL )
    {
#if OSL_DEBUG_LEVEL > 1
        fprintf(stderr, "input context creation failed\n");
#endif

        mbUseable = False;
        mbMultiLingual = False;

        if ( mpAttributes != NULL )
            XFree( mpAttributes );
        if ( mpStatusAttributes != NULL )
            XFree( mpStatusAttributes );
        if ( mpPreeditAttributes != NULL )
            XFree( mpPreeditAttributes );
        if ( maClientData.aText.pUnicodeBuffer != NULL )
            free ( maClientData.aText.pUnicodeBuffer );
        if ( maClientData.aText.pCharStyle != NULL )
            free ( maClientData.aText.pCharStyle );

        mpAttributes                      = NULL;
        mpStatusAttributes                = NULL;
        mpPreeditAttributes               = NULL;
        maClientData.aText.pUnicodeBuffer = NULL;
        maClientData.aText.pCharStyle     = NULL;
    }

    if ( maContext != NULL && mbMultiLingual )
    {
        maCommitStringCallback.callback    = (XIMProc)::CommitStringCallback;
        maCommitStringCallback.client_data = (XPointer)&maClientData;
        maSwitchIMCallback.callback        = (XIMProc)::SwitchIMCallback;
        maSwitchIMCallback.client_data     = (XPointer)&maClientData;
        XSetICValues( maContext,
                      XNCommitStringCallback, &maCommitStringCallback,
                      XNSwitchIMNotifyCallback, &maSwitchIMCallback,
                      NULL );
    }
    if ( maContext != NULL)
    {
        maDestroyCallback.callback    = (XIMProc)IC_IMDestroyCallback;
        maDestroyCallback.client_data = (XPointer)this;
        XSetICValues( maContext,
                      XNDestroyCallback,      &maDestroyCallback,
                      NULL );
    }

    if( mbMultiLingual )
    {
        // set initial IM status
        XIMUnicodeCharacterSubset* pSubset = NULL;
        if( ! XGetICValues( maContext,
                            XNUnicodeCharacterSubset, & pSubset,
                            NULL )
            && pSubset )
        {
            String aCurrent( ByteString( pSubset->name ), RTL_TEXTENCODING_UTF8 );
            ::vcl::I18NStatus::get().changeIM( aCurrent );
            ::vcl::I18NStatus::get().setStatusText( aCurrent );
        }
    }
}

// ---------------------------------------------------------------------------
//
// In Solaris 8 the status window does not unmap if the frame unmapps, so
// unmap it the hard way
//
// ---------------------------------------------------------------------------

void
SalI18N_InputContext::Unmap( SalFrame* pFrame )
{
    if ( maContext != NULL )
    {
        I18NStatus& rStatus( I18NStatus::get() );
        if( rStatus.getParent() == pFrame )
            rStatus.show( false, I18NStatus::contextmap );

    }
    UnsetICFocus( pFrame );
    maClientData.pFrame = NULL;
}

void
SalI18N_InputContext::Map( SalFrame *pFrame )
{
    if( mbUseable )
    {
        I18NStatus& rStatus(I18NStatus::get() );
        rStatus.setParent( pFrame );
        if( pFrame )
        {
            rStatus.show( true, I18NStatus::contextmap );
            if ( maContext == NULL )
            {
                SalI18N_InputMethod *pInputMethod;
                pInputMethod = GetX11SalData()->GetDisplay()->GetInputMethod();

                maContext = XCreateIC( pInputMethod->GetMethod(),
                                       XNVaNestedList, mpAttributes,
                                       NULL );
                if ( maContext != NULL && mbMultiLingual )
                    XSetICValues( maContext,
                                  XNCommitStringCallback, &maCommitStringCallback,
                                  XNSwitchIMNotifyCallback, &maSwitchIMCallback,
                                  NULL );
            }
            if( maClientData.pFrame != pFrame )
                SetICFocus( pFrame );
        }
    }
}

// --------------------------------------------------------------------------
//
// Handle DestroyCallbacks
// in fact this is a callback called from the XNDestroyCallback
//
// --------------------------------------------------------------------------

void
SalI18N_InputContext::HandleDestroyIM()
{
    maContext = 0;      // noli me tangere
    mbUseable = False;
}

// ---------------------------------------------------------------------------
//
//  make sure, the input method gets all the X-Events it needs, this is only
//  called once on each frame, it relys on a valid maContext
//
// ---------------------------------------------------------------------------

void
SalI18N_InputContext::ExtendEventMask( XLIB_Window aFocusWindow )
{
    unsigned long nIMEventMask;
    XWindowAttributes aWindowAttributes;

    if ( mbUseable )
    {
        Display *pDisplay = XDisplayOfIM( XIMOfIC(maContext) );

        XGetWindowAttributes( pDisplay, aFocusWindow,
                              &aWindowAttributes );
        XGetICValues ( maContext,
                       XNFilterEvents, &nIMEventMask,
                       NULL);
        nIMEventMask |= aWindowAttributes.your_event_mask;
        XSelectInput ( pDisplay, aFocusWindow, nIMEventMask );
    }
}

// ---------------------------------------------------------------------------
//
// tune the styles provided by the input method with the supported one
//
// ---------------------------------------------------------------------------

unsigned int
SalI18N_InputContext::GetWeightingOfIMStyle( XIMStyle nStyle ) const
{
    struct StyleWeightingT {
        const XIMStyle      nStyle;
        const unsigned int  nWeight;
    };

    StyleWeightingT const *pWeightPtr;
    const StyleWeightingT pWeight[] = {
        { XIMPreeditCallbacks, 0x10000000 },
        { XIMPreeditPosition,  0x02000000 },
        { XIMPreeditArea,      0x01000000 },
        { XIMPreeditNothing,   0x00100000 },
        { XIMPreeditNone,      0x00010000 },
        { XIMStatusCallbacks,      0x1000 },
        { XIMStatusArea,           0x0100 },
        { XIMStatusNothing,        0x0010 },
        { XIMStatusNone,           0x0001 },
        { 0, 0x0 }
    };

    int nWeight = 0;
    for ( pWeightPtr = pWeight; pWeightPtr->nStyle != 0; pWeightPtr++ )
    {
        if ( (pWeightPtr->nStyle & nStyle) != 0 )
            nWeight += pWeightPtr->nWeight;
    }
    return nWeight;
}

Bool
SalI18N_InputContext::IsSupportedIMStyle( XIMStyle nStyle ) const
{
    if (   (nStyle & mnSupportedPreeditStyle)
           && (nStyle & mnSupportedStatusStyle) )
    {
        return True;
    }
    return False;
}

Bool
SalI18N_InputContext::SupportInputMethodStyle( XIMStyles *pIMStyles )
{
    int nBestScore   = 0;
    int nActualScore = 0;

    mnPreeditStyle = 0;
    mnStatusStyle  = 0;

    if ( pIMStyles != NULL )
    {
        // check whether the XIM supports one of the desired styles
        // only a single preedit and a single status style must occure
        // in a inpuut method style. Hideki said so, so i trust him
        for ( int nStyle = 0; nStyle < pIMStyles->count_styles; nStyle++ )
        {
            XIMStyle nProvidedStyle = pIMStyles->supported_styles[ nStyle ];
            if ( IsSupportedIMStyle(nProvidedStyle) )
            {
                nActualScore = GetWeightingOfIMStyle( nProvidedStyle );
                if ( nActualScore >= nBestScore )
                {
                    nBestScore = nActualScore;
                    mnPreeditStyle = nProvidedStyle & mnSupportedPreeditStyle;
                    mnStatusStyle  = nProvidedStyle & mnSupportedStatusStyle;
                }
            }
        }
    }

#if OSL_DEBUG_LEVEL > 1
    char pBuf[ 128 ];
    fprintf( stderr, "selected inputmethod style = %s\n",
             GetMethodName(mnPreeditStyle | mnStatusStyle, pBuf, sizeof(pBuf)) );
#endif

    return (mnPreeditStyle != 0) && (mnStatusStyle != 0) ;
}

// ---------------------------------------------------------------------------
//
// handle extended and normal key input
//
// ---------------------------------------------------------------------------

int
SalI18N_InputContext::CommitStringCallback (sal_Unicode* pText, sal_Size nLength)
{
    XIMUnicodeText call_data;

    call_data.string.utf16_char = pText;
    call_data.length            = nLength;
    call_data.annotations       = NULL;
    call_data.count_annotations = 0;
    call_data.feedback          = NULL;

    return ::CommitStringCallback( maContext,
                                   (XPointer)&maClientData, (XPointer)&call_data );
}

int
SalI18N_InputContext::CommitKeyEvent(sal_Unicode* pText, sal_Size nLength)
{
    if (nLength == 1 && IsControlCode(pText[0]))
        return 0;

    if( maClientData.pFrame )
    {
        SalExtTextInputEvent aTextEvent;

        aTextEvent.mnTime        = 0;
        aTextEvent.mpTextAttr    = 0;
        aTextEvent.mnCursorPos   = nLength;
        aTextEvent.maText        = UniString(pText, nLength);
        aTextEvent.mnCursorFlags = 0;
        aTextEvent.mnDeltaStart  = 0;
        aTextEvent.mbOnlyCursor  = False;

        maClientData.pFrame->CallCallback(SALEVENT_EXTTEXTINPUT,    (void*)&aTextEvent);
        maClientData.pFrame->CallCallback(SALEVENT_ENDEXTTEXTINPUT, (void*)NULL);
    }
#if OSL_DEBUG_LEVEL > 1
    else
        fprintf(stderr, "CommitKeyEvent without frame\n" );
#endif

    return 0;
}

int
SalI18N_InputContext::UpdateSpotLocation()
{
    if (maContext == 0 || maClientData.pFrame == NULL)
        return -1;

    SalExtTextInputPosEvent aPosEvent;
    maClientData.pFrame->CallCallback(SALEVENT_EXTTEXTINPUTPOS, (void*)&aPosEvent);

    XPoint aSpot;
    aSpot.x = aPosEvent.mnX + aPosEvent.mnWidth;
    aSpot.y = aPosEvent.mnY + aPosEvent.mnHeight;

    XVaNestedList preedit_attr = XVaCreateNestedList(0, XNSpotLocation, &aSpot, NULL);
    XSetICValues(maContext, XNPreeditAttributes, preedit_attr, NULL);
    XFree(preedit_attr);

    I18NStatus::get().show( true, I18NStatus::contextmap );

    return 0;
}

// ---------------------------------------------------------------------------
//
// set and unset the focus for the Input Context
// the context may be NULL despite it is useable if the framewindow is
// in unmapped state
//
// ---------------------------------------------------------------------------

void
SalI18N_InputContext::SetICFocus( SalFrame* pFocusFrame )
{
    I18NStatus::get().setParent( pFocusFrame );
    if ( mbUseable && (maContext != NULL)  )
    {
        maClientData.pFrame = pFocusFrame;

        const SystemEnvData* pEnv   = pFocusFrame->GetSystemData();
        XLIB_Window  aClientWindow  = pEnv->aShellWindow;
        XLIB_Window  aFocusWindow   = pEnv->aWindow;

        XSetICValues( maContext,
                      XNFocusWindow,       aFocusWindow,
                      XNClientWindow,      aClientWindow,
                      NULL );

        if( maClientData.aInputEv.mpTextAttr )
        {
            sendEmptyCommit(pFocusFrame);
            // begin preedit again
            GetX11SalData()->GetDisplay()->SendInternalEvent( pFocusFrame, &maClientData.aInputEv, SALEVENT_EXTTEXTINPUT );
        }

        XSetICFocus( maContext );
    }
}

void
SalI18N_InputContext::UnsetICFocus( SalFrame* pFrame )
{
    I18NStatus& rStatus( I18NStatus::get() );
    if( rStatus.getParent() == pFrame )
        rStatus.setParent( NULL );

    if ( mbUseable && (maContext != NULL) )
    {
        // cancel an eventual event posted to begin preedit again
        GetX11SalData()->GetDisplay()->CancelInternalEvent( maClientData.pFrame, &maClientData.aInputEv, SALEVENT_EXTTEXTINPUT );
        maClientData.pFrame = NULL;
        XUnsetICFocus( maContext );
    }
}

// ---------------------------------------------------------------------------
//
// multi byte input method only
//
// ---------------------------------------------------------------------------

void
SalI18N_InputContext::SetPreeditState(Bool aPreeditState)
{
    XIMPreeditState preedit_state = XIMPreeditUnKnown;
    XVaNestedList preedit_attr;

    preedit_attr = XVaCreateNestedList(
                                       0,
                                       XNPreeditState, &preedit_state,
                                       NULL);
    if (!XGetICValues(maContext, XNPreeditAttributes, preedit_attr, NULL))
    {
        XFree(preedit_attr);

        preedit_state = aPreeditState? XIMPreeditEnable : XIMPreeditDisable;
        preedit_attr = XVaCreateNestedList(
                                           0,
                                           XNPreeditState, preedit_state,
                                           NULL);
        XSetICValues(maContext, XNPreeditAttributes, preedit_attr, NULL);
    }

    XFree(preedit_attr);

    return;
}

void
SalI18N_InputContext::SetLanguage(LanguageType)
{
    // not yet implemented
    return;
}

void
SalI18N_InputContext::EndExtTextInput( USHORT /*nFlags*/ )
{
    if ( mbUseable && (maContext != NULL) && maClientData.pFrame )
    {
        vcl::DeletionListener aDel( maClientData.pFrame );
        // delete preedit in sal (commit an empty string)
        sendEmptyCommit( maClientData.pFrame );
        if( ! aDel.isDeleted() )
        {
            // mark previous preedit state again (will e.g. be sent at focus gain)
            maClientData.aInputEv.mpTextAttr = &maClientData.aInputFlags[0];
            if( static_cast<X11SalFrame*>(maClientData.pFrame)->hasFocus() )
            {
                // begin preedit again
                GetX11SalData()->GetDisplay()->SendInternalEvent( maClientData.pFrame, &maClientData.aInputEv, SALEVENT_EXTTEXTINPUT );
            }
        }
    }
}


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