1 /************************************************************** 2 * 3 * Licensed to the Apache Software Foundation (ASF) under one 4 * or more contributor license agreements. See the NOTICE file 5 * distributed with this work for additional information 6 * regarding copyright ownership. The ASF licenses this file 7 * to you under the Apache License, Version 2.0 (the 8 * "License"); you may not use this file except in compliance 9 * with the License. You may obtain a copy of the License at 10 * 11 * http://www.apache.org/licenses/LICENSE-2.0 12 * 13 * Unless required by applicable law or agreed to in writing, 14 * software distributed under the License is distributed on an 15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16 * KIND, either express or implied. See the License for the 17 * specific language governing permissions and limitations 18 * under the License. 19 * 20 *************************************************************/ 21 22 23 24 // MARKER(update_precomp.py): autogen include statement, do not remove 25 #include "precompiled_vcl.hxx" 26 27 28 #include <stdio.h> 29 30 #include "unx/saldisp.hxx" 31 #include "unx/saldata.hxx" 32 #include "unx/i18n_xkb.hxx" 33 34 SalI18N_KeyboardExtension::SalI18N_KeyboardExtension( Display* pDisplay) 35 : mbUseExtension( true ), 36 , mnDefaultGroup( 0 ) 37 { 38 mpDisplay = pDisplay; 39 40 // allow user to set the default keyboard group idx or to disable the usage 41 // of x keyboard extension at all: 42 // setenv SAL_XKEYBOARDGROUP disables keyboard extension 43 // setenv SAL_XKEYBOARDGROUP 2 sets the keyboard group index to 2 44 // keyboard group index must be in [1,4], may be specified in hex or decimal 45 static char *pUseKeyboardExtension = getenv( "SAL_XKEYBOARDGROUP" ); 46 if ( pUseKeyboardExtension != NULL ) 47 { 48 mbUseExtension = pUseKeyboardExtension[0] != '\0' ; 49 if ( mbUseExtension ) 50 mnDefaultGroup = strtol( pUseKeyboardExtension, NULL, 0 ); 51 if ( mnDefaultGroup > XkbMaxKbdGroup ) 52 mnDefaultGroup = 0; 53 } 54 55 // query XServer support for XKB Extension, 56 // do not call XQueryExtension() / XInitExtension() due to possible version 57 // clashes ! 58 if ( mbUseExtension ) 59 { 60 int nMajorExtOpcode; 61 int nExtMajorVersion = XkbMajorVersion; 62 int nExtMinorVersion = XkbMinorVersion; 63 64 mbUseExtension = (sal_Bool)XkbQueryExtension( mpDisplay, 65 &nMajorExtOpcode, (int*)&mnEventBase, (int*)&mnErrorBase, 66 &nExtMajorVersion, &nExtMinorVersion ); 67 } 68 69 // query notification for changes of the keyboard group 70 if ( mbUseExtension ) 71 { 72 #define XkbGroupMask ( XkbGroupStateMask | XkbGroupBaseMask \ 73 | XkbGroupLatchMask | XkbGroupLockMask ) 74 75 mbUseExtension = XkbSelectEventDetails( mpDisplay, 76 XkbUseCoreKbd, XkbStateNotify, XkbGroupMask, XkbGroupMask ); 77 } 78 79 // query initial keyboard group 80 if ( mbUseExtension ) 81 { 82 XkbStateRec aStateRecord; 83 XkbGetState( mpDisplay, XkbUseCoreKbd, &aStateRecord ); 84 mnGroup = aStateRecord.group; 85 } 86 } 87 88 void 89 SalI18N_KeyboardExtension::Dispatch( XEvent* pEvent) 90 { 91 // must the event be handled? 92 if ( !mbUseExtension 93 || (pEvent->type != mnEventBase) ) 94 return; 95 96 // only handle state notify events for now, and only interested 97 // in group details 98 sal_uInt32 nXKBType = ((XkbAnyEvent*)pEvent)->xkb_type; 99 switch ( nXKBType ) 100 { 101 case XkbStateNotify: 102 103 mnGroup = ((XkbStateNotifyEvent*)pEvent)->group; 104 break; 105 106 default: 107 108 #if OSL_DEBUG_LEVEL > 1 109 fprintf(stderr, "Got unrequested XkbAnyEvent %#x/%i\n", 110 static_cast<unsigned int>(nXKBType), static_cast<int>(nXKBType) ); 111 #endif 112 break; 113 } 114 } 115 116 sal_uInt32 SalI18N_KeyboardExtension::LookupKeysymInGroup( sal_uInt32 nKeyCode, 117 sal_uInt32 nShiftState, sal_uInt32 nGroup ) const 118 { 119 nShiftState &= ShiftMask; 120 121 KeySym nKeySymbol = XkbKeycodeToKeysym( mpDisplay, nKeyCode, nGroup, nShiftState ); 122 return nKeySymbol; 123 } 124 125 126