vcl/unx/source/app/i18n_xkb.cxx

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  30
  31 // MARKER(update_precomp.py): autogen include statement, do not remove
  32 #include "precompiled_vcl.hxx"
  33
  34
  35 #include <stdio.h>
  36
  37 #include "saldisp.hxx"
  38 #include "saldata.hxx"
  39 #include "i18n_xkb.hxx"
  40
  41 SalI18N_KeyboardExtension::SalI18N_KeyboardExtension( Display*
  42 #if __XKeyboardExtension__
  43 pDisplay
  44 #endif
  45 )
  46     : mbUseExtension( (sal_Bool)__XKeyboardExtension__ ),
  47       mnDefaultGroup( 0 )
  48 {
  49     #if __XKeyboardExtension__
  50
  51     mpDisplay = pDisplay;
  52
  53     // allow user to set the default keyboard group idx or to disable the usage
  54     // of x keyboard extension at all:
  55     //          setenv SAL_XKEYBOARDGROUP               disables keyboard extension
  56     //          setenv SAL_XKEYBOARDGROUP 2             sets the keyboard group index to 2
  57     // keyboard group index must be in [1,4], may be specified in hex or decimal
  58     static char *pUseKeyboardExtension = getenv( "SAL_XKEYBOARDGROUP" );
  59     if ( pUseKeyboardExtension != NULL )
  60     {
  61         mbUseExtension = pUseKeyboardExtension[0] != '\0' ;
  62         if ( mbUseExtension )
  63             mnDefaultGroup = strtol( pUseKeyboardExtension, NULL, 0 );
  64         if ( mnDefaultGroup > XkbMaxKbdGroup )
  65             mnDefaultGroup = 0;
  66     }
  67
  68     // query XServer support for XKB Extension,
  69     // do not call XQueryExtension() / XInitExtension() due to possible version
  70     // clashes !
  71     if ( mbUseExtension )
  72     {
  73         int nMajorExtOpcode;
  74         int nExtMajorVersion = XkbMajorVersion;
  75         int nExtMinorVersion = XkbMinorVersion;
  76
  77         mbUseExtension = (sal_Bool)XkbQueryExtension( mpDisplay,
  78             &nMajorExtOpcode, (int*)&mnEventBase, (int*)&mnErrorBase,
  79             &nExtMajorVersion, &nExtMinorVersion );
  80     }
  81
  82     // query notification for changes of the keyboard group
  83     if ( mbUseExtension )
  84     {
  85         #define XkbGroupMask (  XkbGroupStateMask | XkbGroupBaseMask \
  86                                 | XkbGroupLatchMask | XkbGroupLockMask )
  87
  88         mbUseExtension = XkbSelectEventDetails( mpDisplay,
  89             XkbUseCoreKbd, XkbStateNotify, XkbGroupMask, XkbGroupMask );
  90     }
  91
  92     // query initial keyboard group
  93     if ( mbUseExtension )
  94     {
  95         XkbStateRec aStateRecord;
  96         XkbGetState( mpDisplay, XkbUseCoreKbd, &aStateRecord );
  97         mnGroup = aStateRecord.group;
  98     }
  99
 100     #endif // __XKeyboardExtension__
 101 }
 102
 103 void
 104 SalI18N_KeyboardExtension::Dispatch( XEvent*
 105 #if __XKeyboardExtension__
 106 pEvent
 107 #endif
 108 )
 109 {
 110     #if __XKeyboardExtension__
 111
 112     // must the event be handled?
 113     if (   !mbUseExtension
 114         || (pEvent->type != mnEventBase) )
 115         return;
 116
 117     // only handle state notify events for now, and only interested
 118     // in group details
 119     sal_uInt32 nXKBType = ((XkbAnyEvent*)pEvent)->xkb_type;
 120     switch ( nXKBType )
 121     {
 122         case XkbStateNotify:
 123
 124             mnGroup = ((XkbStateNotifyEvent*)pEvent)->group;
 125             break;
 126
 127         default:
 128
 129             #if OSL_DEBUG_LEVEL > 1
 130             fprintf(stderr, "Got unrequested XkbAnyEvent %#x/%i\n",
 131                     static_cast<unsigned int>(nXKBType), static_cast<int>(nXKBType) );
 132             #endif
 133             break;
 134     }
 135     #endif // __XKeyboardExtension__
 136 }
 137
 138 #if __XKeyboardExtension__
 139 sal_uInt32
 140 SalI18N_KeyboardExtension::LookupKeysymInGroup( sal_uInt32 nKeyCode,
 141                                                  sal_uInt32 nShiftState,
 142                                                    sal_uInt32 nGroup ) const
 143 #else
 144 sal_uInt32
 145 SalI18N_KeyboardExtension::LookupKeysymInGroup( sal_uInt32,sal_uInt32,sal_uInt32 ) const
 146 #endif
 147 {
 148     #if __XKeyboardExtension__
 149
 150     if ( !mbUseExtension )
 151         return NoSymbol;
 152
 153     nShiftState &= ShiftMask;
 154
 155     KeySym              nKeySymbol;
 156     nKeySymbol = XkbKeycodeToKeysym( mpDisplay, nKeyCode, nGroup, nShiftState );
 157     return nKeySymbol;
 158
 159     #else
 160
 161     return NoSymbol;
 162
 163     #endif // __XKeyboardExtension__
 164 }
 165
 166