LCOV - code coverage report
Current view: top level - vcl/unx/generic/app - i18n_ic.cxx (source / functions) Hit Total Coverage
Test: commit c8344322a7af75b84dd3ca8f78b05543a976dfd5 Lines: 1 247 0.4 %
Date: 2015-06-13 12:38:46 Functions: 2 19 10.5 %
Legend: Lines: hit not hit

          Line data    Source code
       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 <stdio.h>
      21             : 
      22             : #include <sal/alloca.h>
      23             : #include <osl/thread.h>
      24             : 
      25             : #include <prex.h>
      26             : #include <X11/Xlocale.h>
      27             : #include <X11/Xlib.h>
      28             : #include <postx.h>
      29             : 
      30             : #include <unx/salunx.h>
      31             : #include <unx/XIM.h>
      32             : #include <unx/i18n_ic.hxx>
      33             : #include <unx/i18n_im.hxx>
      34             : #include <unx/i18n_status.hxx>
      35             : 
      36             : #include <unx/salframe.h>
      37             : #include <unx/saldata.hxx>
      38             : #include <unx/saldisp.hxx>
      39             : 
      40             : using namespace vcl;
      41             : 
      42           0 : static void sendEmptyCommit( SalFrame* pFrame )
      43             : {
      44           0 :     vcl::DeletionListener aDel( pFrame );
      45             : 
      46           0 :     SalExtTextInputEvent aEmptyEv;
      47           0 :     aEmptyEv.mnTime             = 0;
      48           0 :     aEmptyEv.mpTextAttr         = 0;
      49           0 :     aEmptyEv.maText.clear();
      50           0 :     aEmptyEv.mnCursorPos        = 0;
      51           0 :     aEmptyEv.mnCursorFlags      = 0;
      52           0 :     aEmptyEv.mbOnlyCursor       = False;
      53           0 :     pFrame->CallCallback( SALEVENT_EXTTEXTINPUT, static_cast<void*>(&aEmptyEv) );
      54           0 :     if( ! aDel.isDeleted() )
      55           0 :         pFrame->CallCallback( SALEVENT_ENDEXTTEXTINPUT, NULL );
      56           0 : }
      57             : 
      58             : // Constructor / Destructor, the InputContext is bound to the SalFrame, as it
      59             : // needs the shell window as a focus window
      60             : 
      61           0 : SalI18N_InputContext::~SalI18N_InputContext()
      62             : {
      63           0 :     if ( maContext != NULL )
      64           0 :         XDestroyIC( maContext );
      65           0 :     if ( mpAttributes != NULL )
      66           0 :         XFree( mpAttributes );
      67           0 :     if ( mpStatusAttributes != NULL )
      68           0 :         XFree( mpStatusAttributes );
      69           0 :     if ( mpPreeditAttributes != NULL )
      70           0 :         XFree( mpPreeditAttributes );
      71             : 
      72           0 :     if (maClientData.aText.pUnicodeBuffer != NULL)
      73           0 :         free(maClientData.aText.pUnicodeBuffer);
      74           0 :     if (maClientData.aText.pCharStyle != NULL)
      75           0 :         free(maClientData.aText.pCharStyle);
      76           0 : }
      77             : 
      78             : // convenience routine to add items to a XVaNestedList
      79             : 
      80             : static XVaNestedList
      81           0 : XVaAddToNestedList( XVaNestedList a_srclist, char* name, XPointer value )
      82             : {
      83             :     XVaNestedList a_dstlist;
      84             : 
      85             :     // if ( value == NULL )
      86             :     //  return a_srclist;
      87             : 
      88           0 :     if ( a_srclist == NULL )
      89             :     {
      90             :         a_dstlist = XVaCreateNestedList(
      91             :                                         0,
      92             :                                         name,           value,
      93           0 :                                         NULL );
      94             :     }
      95             :     else
      96             :     {
      97             :         a_dstlist = XVaCreateNestedList(
      98             :                                         0,
      99             :                                         XNVaNestedList, a_srclist,
     100             :                                         name,           value,
     101           0 :                                         NULL );
     102             :     }
     103             : 
     104           0 :     return a_dstlist != NULL ? a_dstlist : a_srclist ;
     105             : }
     106             : 
     107             : // convenience routine to create a fontset
     108             : 
     109             : static XFontSet
     110           0 : get_font_set( Display *p_display )
     111             : {
     112             :     static XFontSet p_font_set = NULL;
     113             : 
     114           0 :     if (p_font_set == NULL)
     115             :     {
     116             :         char **pp_missing_list;
     117             :         int    n_missing_count;
     118             :         char  *p_default_string;
     119             : 
     120             :         p_font_set = XCreateFontSet(p_display, "-*",
     121           0 :                                     &pp_missing_list, &n_missing_count, &p_default_string);
     122             :     }
     123             : 
     124           0 :     return p_font_set;
     125             : }
     126             : 
     127             : // Constructor for a InputContext (IC)
     128             : 
     129           0 : SalI18N_InputContext::SalI18N_InputContext ( SalFrame *pFrame ) :
     130             :         mbUseable( True ),
     131             :         maContext( nullptr ),
     132             :         mnSupportedStatusStyle(
     133             :                                XIMStatusCallbacks   |
     134             :                                XIMStatusNothing     |
     135             :                                XIMStatusNone
     136             :                                ),
     137             :         mnSupportedPreeditStyle(
     138             :                                 XIMPreeditCallbacks |
     139             :                                 XIMPreeditNothing   |
     140             :                                 XIMPreeditNone
     141             :                                 ),
     142             :         mnStatusStyle( 0 ),
     143             :         mnPreeditStyle( 0 ),
     144             :         mpAttributes( NULL ),
     145             :         mpStatusAttributes( NULL ),
     146           0 :         mpPreeditAttributes( NULL )
     147             : {
     148             : #ifdef SOLARIS
     149             :     static const char* pIIIMPEnable = getenv( "SAL_DISABLE_OWN_IM_STATUS" );
     150             :     if( pIIIMPEnable && *pIIIMPEnable )
     151             :         mnSupportedStatusStyle &= ~XIMStatusCallbacks;
     152             : #endif
     153             : 
     154           0 :     memset(&maPreeditStartCallback, 0, sizeof(maPreeditStartCallback));
     155           0 :     memset(&maPreeditDoneCallback, 0, sizeof(maPreeditDoneCallback));
     156           0 :     memset(&maPreeditDrawCallback, 0, sizeof(maPreeditDrawCallback));
     157           0 :     memset(&maPreeditCaretCallback, 0, sizeof(maPreeditCaretCallback));
     158           0 :     memset(&maCommitStringCallback, 0, sizeof(maCommitStringCallback));
     159           0 :     memset(&maSwitchIMCallback, 0, sizeof(maSwitchIMCallback));
     160           0 :     memset(&maDestroyCallback, 0, sizeof(maDestroyCallback));
     161             : 
     162           0 :     maClientData.aText.pUnicodeBuffer       = NULL;
     163           0 :     maClientData.aText.pCharStyle           = NULL;
     164           0 :     maClientData.aInputEv.mnTime            = 0;
     165           0 :     maClientData.aInputEv.mpTextAttr        = NULL;
     166           0 :     maClientData.aInputEv.mnCursorPos       = 0;
     167           0 :     maClientData.aInputEv.mnCursorFlags     = 0;
     168           0 :     maClientData.aInputEv.mbOnlyCursor      = false;
     169             : 
     170             :     SalI18N_InputMethod *pInputMethod;
     171           0 :     pInputMethod = vcl_sal::getSalDisplay(GetGenericData())->GetInputMethod();
     172             : 
     173             :     mnSupportedPreeditStyle =   XIMPreeditCallbacks | XIMPreeditPosition
     174           0 :         | XIMPreeditNothing   | XIMPreeditNone;
     175           0 :     if (pInputMethod->UseMethod()
     176           0 :         && SupportInputMethodStyle( pInputMethod->GetSupportedStyles() ) )
     177             :     {
     178           0 :         const SystemEnvData* pEnv = pFrame->GetSystemData();
     179           0 :         ::Window  aClientWindow = pEnv->aShellWindow;
     180           0 :         ::Window  aFocusWindow  = pEnv->aWindow;
     181             : 
     182             :         // for status callbacks and commit string callbacks
     183             : #define PREEDIT_BUFSZ 16
     184           0 :         maClientData.eState                 = ePreeditStatusStartPending;
     185           0 :         maClientData.pFrame                 = pFrame;
     186             :         maClientData.aText.pUnicodeBuffer   =
     187           0 :             static_cast<sal_Unicode*>(malloc(PREEDIT_BUFSZ * sizeof(sal_Unicode)));
     188             :         maClientData.aText.pCharStyle       =
     189           0 :             static_cast<XIMFeedback*>(malloc(PREEDIT_BUFSZ * sizeof(XIMFeedback)));
     190           0 :         maClientData.aText.nSize            = PREEDIT_BUFSZ;
     191           0 :         maClientData.aText.nCursorPos       = 0;
     192           0 :         maClientData.aText.nLength          = 0;
     193             : 
     194             :         // Status attributes
     195             : 
     196           0 :         switch ( mnStatusStyle )
     197             :         {
     198             :             case XIMStatusCallbacks:
     199             :             {
     200             :                 static XIMCallback aStatusStartCallback;
     201             :                 static XIMCallback aStatusDoneCallback;
     202             :                 static XIMCallback aStatusDrawCallback;
     203             : 
     204           0 :                 aStatusStartCallback.callback    = reinterpret_cast<XIMProc>(StatusStartCallback);
     205           0 :                 aStatusStartCallback.client_data = reinterpret_cast<XPointer>(&maClientData);
     206           0 :                 aStatusDoneCallback.callback     = reinterpret_cast<XIMProc>(StatusDoneCallback);
     207           0 :                 aStatusDoneCallback.client_data  = reinterpret_cast<XPointer>(&maClientData);
     208           0 :                 aStatusDrawCallback.callback     = reinterpret_cast<XIMProc>(StatusDrawCallback);
     209           0 :                 aStatusDrawCallback.client_data  = reinterpret_cast<XPointer>(&maClientData);
     210             : 
     211             :                 mpStatusAttributes = XVaCreateNestedList (
     212             :                                                           0,
     213             :                                                           XNStatusStartCallback, &aStatusStartCallback,
     214             :                                                           XNStatusDoneCallback,  &aStatusDoneCallback,
     215             :                                                           XNStatusDrawCallback,  &aStatusDrawCallback,
     216           0 :                                                           NULL );
     217             : 
     218           0 :                 break;
     219             :             }
     220             : 
     221             :             case XIMStatusArea:
     222             :                 /* not supported */
     223           0 :                 break;
     224             : 
     225             :             case XIMStatusNone:
     226             :             case XIMStatusNothing:
     227             :             default:
     228             :                 /* no arguments needed */
     229           0 :                 break;
     230             :         }
     231             : 
     232             :         // set preedit attributes
     233             : 
     234           0 :         switch ( mnPreeditStyle )
     235             :         {
     236             :             case XIMPreeditCallbacks:
     237             : 
     238           0 :                 maPreeditCaretCallback.callback = reinterpret_cast<XIMProc>(PreeditCaretCallback);
     239           0 :                 maPreeditStartCallback.callback = reinterpret_cast<XIMProc>(PreeditStartCallback);
     240           0 :                 maPreeditDoneCallback.callback  = reinterpret_cast<XIMProc>(PreeditDoneCallback);
     241           0 :                 maPreeditDrawCallback.callback  = reinterpret_cast<XIMProc>(PreeditDrawCallback);
     242           0 :                 maPreeditCaretCallback.client_data = reinterpret_cast<XPointer>(&maClientData);
     243           0 :                 maPreeditStartCallback.client_data = reinterpret_cast<XPointer>(&maClientData);
     244           0 :                 maPreeditDoneCallback.client_data  = reinterpret_cast<XPointer>(&maClientData);
     245           0 :                 maPreeditDrawCallback.client_data  = reinterpret_cast<XPointer>(&maClientData);
     246             : 
     247             :                 mpPreeditAttributes = XVaCreateNestedList (
     248             :                                                            0,
     249             :                                                            XNPreeditStartCallback, &maPreeditStartCallback,
     250             :                                                            XNPreeditDoneCallback,  &maPreeditDoneCallback,
     251             :                                                            XNPreeditDrawCallback,   &maPreeditDrawCallback,
     252             :                                                            XNPreeditCaretCallback, &maPreeditCaretCallback,
     253           0 :                                                            NULL );
     254             : 
     255           0 :                 break;
     256             : 
     257             :             case XIMPreeditArea:
     258             :                 /* not supported */
     259           0 :                 break;
     260             : 
     261             :             case XIMPreeditPosition:
     262             :             {
     263             :                 // spot location
     264           0 :                 SalExtTextInputPosEvent aPosEvent;
     265           0 :                 pFrame->CallCallback(SALEVENT_EXTTEXTINPUTPOS, static_cast<void*>(&aPosEvent));
     266             : 
     267             :                 static XPoint aSpot;
     268           0 :                 aSpot.x = aPosEvent.mnX + aPosEvent.mnWidth;
     269           0 :                 aSpot.y = aPosEvent.mnY + aPosEvent.mnHeight;
     270             : 
     271             :                 // create attributes for preedit position style
     272             :                 mpPreeditAttributes = XVaCreateNestedList (
     273             :                                                            0,
     274             :                                                            XNSpotLocation, &aSpot,
     275           0 :                                                            NULL );
     276             : 
     277             :                 // XCreateIC() fails on Redflag Linux 2.0 if there is no
     278             :                 // fontset though the data itself is not evaluated nor is
     279             :                 // it required according to the X specs.
     280           0 :                 Display* pDisplay = vcl_sal::getSalDisplay(GetGenericData())->GetDisplay();
     281           0 :                 XFontSet pFontSet = get_font_set(pDisplay);
     282             : 
     283           0 :                 if (pFontSet != NULL)
     284             :                 {
     285             :                     mpPreeditAttributes = XVaAddToNestedList( mpPreeditAttributes,
     286           0 :                                                               const_cast<char*>(XNFontSet), reinterpret_cast<XPointer>(pFontSet));
     287             :                 }
     288             : 
     289           0 :                 break;
     290             :             }
     291             : 
     292             :             case XIMPreeditNone:
     293             :             case XIMPreeditNothing:
     294             :             default:
     295             :                 /* no arguments needed */
     296           0 :                 break;
     297             :         }
     298             : 
     299             :         // Create the InputContext by giving it exactly the information it
     300             :         // deserves, because inappropriate attributes
     301             :         // let XCreateIC fail on Solaris (eg. for C locale)
     302             : 
     303             :         mpAttributes = XVaCreateNestedList(
     304             :                                            0,
     305             :                                            XNFocusWindow,       aFocusWindow,
     306             :                                            XNClientWindow,      aClientWindow,
     307             :                                            XNInputStyle,        mnPreeditStyle | mnStatusStyle,
     308           0 :                                            NULL );
     309             : 
     310           0 :         if ( mnPreeditStyle != XIMPreeditNone )
     311             :         {
     312             : #if defined LINUX || defined FREEBSD || defined NETBSD || defined OPENBSD || defined DRAGONFLY
     313           0 :             if ( mpPreeditAttributes != NULL )
     314             : #endif
     315             :                 mpAttributes = XVaAddToNestedList( mpAttributes,
     316           0 :                                                    const_cast<char*>(XNPreeditAttributes), static_cast<XPointer>(mpPreeditAttributes) );
     317             :         }
     318           0 :         if ( mnStatusStyle != XIMStatusNone )
     319             :         {
     320             : #if defined LINUX || defined FREEBSD || defined NETBSD || defined OPENBSD || defined DRAGONFLY
     321           0 :             if ( mpStatusAttributes != NULL )
     322             : #endif
     323             :                 mpAttributes = XVaAddToNestedList( mpAttributes,
     324           0 :                                                    const_cast<char*>(XNStatusAttributes), static_cast<XPointer>(mpStatusAttributes) );
     325             :         }
     326             :         maContext = XCreateIC( pInputMethod->GetMethod(),
     327             :                                XNVaNestedList, mpAttributes,
     328           0 :                                NULL );
     329             :     }
     330             : 
     331           0 :     if ( maContext == NULL )
     332             :     {
     333             : #if OSL_DEBUG_LEVEL > 1
     334             :         fprintf(stderr, "input context creation failed\n");
     335             : #endif
     336             : 
     337           0 :         mbUseable = False;
     338             : 
     339           0 :         if ( mpAttributes != NULL )
     340           0 :             XFree( mpAttributes );
     341           0 :         if ( mpStatusAttributes != NULL )
     342           0 :             XFree( mpStatusAttributes );
     343           0 :         if ( mpPreeditAttributes != NULL )
     344           0 :             XFree( mpPreeditAttributes );
     345           0 :         if ( maClientData.aText.pUnicodeBuffer != NULL )
     346           0 :             free ( maClientData.aText.pUnicodeBuffer );
     347           0 :         if ( maClientData.aText.pCharStyle != NULL )
     348           0 :             free ( maClientData.aText.pCharStyle );
     349             : 
     350           0 :         mpAttributes                      = NULL;
     351           0 :         mpStatusAttributes                = NULL;
     352           0 :         mpPreeditAttributes               = NULL;
     353           0 :         maClientData.aText.pUnicodeBuffer = NULL;
     354           0 :         maClientData.aText.pCharStyle     = NULL;
     355             :     }
     356             : 
     357           0 :     if ( maContext != NULL)
     358             :     {
     359           0 :         maDestroyCallback.callback    = static_cast<XIMProc>(IC_IMDestroyCallback);
     360           0 :         maDestroyCallback.client_data = reinterpret_cast<XPointer>(this);
     361             :         XSetICValues( maContext,
     362             :                       XNDestroyCallback,      &maDestroyCallback,
     363           0 :                       NULL );
     364             :     }
     365           0 : }
     366             : 
     367             : // In Solaris 8 the status window does not unmap if the frame unmapps, so
     368             : // unmap it the hard way
     369             : 
     370             : void
     371           0 : SalI18N_InputContext::Unmap( SalFrame* pFrame )
     372             : {
     373           0 :     if ( maContext != NULL )
     374             :     {
     375           0 :         I18NStatus& rStatus( I18NStatus::get() );
     376           0 :         if( rStatus.getParent() == pFrame )
     377           0 :             rStatus.show( false, I18NStatus::contextmap );
     378             : 
     379             :     }
     380           0 :     UnsetICFocus( pFrame );
     381           0 :     maClientData.pFrame = NULL;
     382           0 : }
     383             : 
     384             : void
     385           0 : SalI18N_InputContext::Map( SalFrame *pFrame )
     386             : {
     387           0 :     if( mbUseable )
     388             :     {
     389           0 :         I18NStatus& rStatus(I18NStatus::get() );
     390           0 :         rStatus.setParent( pFrame );
     391           0 :         if( pFrame )
     392             :         {
     393           0 :             rStatus.show( true, I18NStatus::contextmap );
     394           0 :             if ( maContext == NULL )
     395             :             {
     396             :                 SalI18N_InputMethod *pInputMethod;
     397           0 :                 pInputMethod = vcl_sal::getSalDisplay(GetGenericData())->GetInputMethod();
     398             : 
     399             :                 maContext = XCreateIC( pInputMethod->GetMethod(),
     400             :                                        XNVaNestedList, mpAttributes,
     401           0 :                                        NULL );
     402             :             }
     403           0 :             if( maClientData.pFrame != pFrame )
     404           0 :                 SetICFocus( pFrame );
     405             :         }
     406             :     }
     407           0 : }
     408             : 
     409             : // Handle DestroyCallbacks
     410             : // in fact this is a callback called from the XNDestroyCallback
     411             : 
     412             : void
     413           0 : SalI18N_InputContext::HandleDestroyIM()
     414             : {
     415           0 :     maContext = 0;      // noli me tangere
     416           0 :     mbUseable = False;
     417           0 : }
     418             : 
     419             : //  make sure, the input method gets all the X-Events it needs, this is only
     420             : //  called once on each frame, it relys on a valid maContext
     421             : 
     422             : void
     423           0 : SalI18N_InputContext::ExtendEventMask( ::Window aFocusWindow )
     424             : {
     425             :     unsigned long nIMEventMask;
     426             :     XWindowAttributes aWindowAttributes;
     427             : 
     428           0 :     if ( mbUseable )
     429             :     {
     430           0 :         Display *pDisplay = XDisplayOfIM( XIMOfIC(maContext) );
     431             : 
     432             :         XGetWindowAttributes( pDisplay, aFocusWindow,
     433           0 :                               &aWindowAttributes );
     434             :         XGetICValues ( maContext,
     435             :                        XNFilterEvents, &nIMEventMask,
     436           0 :                        NULL);
     437           0 :         nIMEventMask |= aWindowAttributes.your_event_mask;
     438           0 :         XSelectInput ( pDisplay, aFocusWindow, nIMEventMask );
     439             :     }
     440           0 : }
     441             : 
     442             : // tune the styles provided by the input method with the supported one
     443             : 
     444             : unsigned int
     445           0 : SalI18N_InputContext::GetWeightingOfIMStyle( XIMStyle nStyle )
     446             : {
     447             :     struct StyleWeightingT {
     448             :         const XIMStyle      nStyle;
     449             :         const unsigned int  nWeight;
     450             :     };
     451             : 
     452             :     StyleWeightingT const *pWeightPtr;
     453             :     const StyleWeightingT pWeight[] = {
     454             :         { XIMPreeditCallbacks, 0x10000000 },
     455             :         { XIMPreeditPosition,  0x02000000 },
     456             :         { XIMPreeditArea,      0x01000000 },
     457             :         { XIMPreeditNothing,   0x00100000 },
     458             :         { XIMPreeditNone,      0x00010000 },
     459             :         { XIMStatusCallbacks,      0x1000 },
     460             :         { XIMStatusArea,           0x0100 },
     461             :         { XIMStatusNothing,        0x0010 },
     462             :         { XIMStatusNone,           0x0001 },
     463             :         { 0, 0x0 }
     464           0 :     };
     465             : 
     466           0 :     int nWeight = 0;
     467           0 :     for ( pWeightPtr = pWeight; pWeightPtr->nStyle != 0; pWeightPtr++ )
     468             :     {
     469           0 :         if ( (pWeightPtr->nStyle & nStyle) != 0 )
     470           0 :             nWeight += pWeightPtr->nWeight;
     471             :     }
     472           0 :     return nWeight;
     473             : }
     474             : 
     475             : Bool
     476           0 : SalI18N_InputContext::IsSupportedIMStyle( XIMStyle nStyle ) const
     477             : {
     478           0 :     if (   (nStyle & mnSupportedPreeditStyle)
     479           0 :            && (nStyle & mnSupportedStatusStyle) )
     480             :     {
     481           0 :         return True;
     482             :     }
     483           0 :     return False;
     484             : }
     485             : 
     486             : bool
     487           0 : SalI18N_InputContext::SupportInputMethodStyle( XIMStyles *pIMStyles )
     488             : {
     489           0 :     mnPreeditStyle = 0;
     490           0 :     mnStatusStyle  = 0;
     491             : 
     492           0 :     if ( pIMStyles != NULL )
     493             :     {
     494           0 :         int nBestScore   = 0;
     495           0 :         int nActualScore = 0;
     496             : 
     497             :         // check whether the XIM supports one of the desired styles
     498             :         // only a single preedit and a single status style must occur
     499             :         // in a inpuut method style. Hideki said so, so i trust him
     500           0 :         for ( int nStyle = 0; nStyle < pIMStyles->count_styles; nStyle++ )
     501             :         {
     502           0 :             XIMStyle nProvidedStyle = pIMStyles->supported_styles[ nStyle ];
     503           0 :             if ( IsSupportedIMStyle(nProvidedStyle) )
     504             :             {
     505           0 :                 nActualScore = GetWeightingOfIMStyle( nProvidedStyle );
     506           0 :                 if ( nActualScore >= nBestScore )
     507             :                 {
     508           0 :                     nBestScore = nActualScore;
     509           0 :                     mnPreeditStyle = nProvidedStyle & mnSupportedPreeditStyle;
     510           0 :                     mnStatusStyle  = nProvidedStyle & mnSupportedStatusStyle;
     511             :                 }
     512             :             }
     513             :         }
     514             :     }
     515             : 
     516             : #if OSL_DEBUG_LEVEL > 1
     517             :     char pBuf[ 128 ];
     518             :     fprintf( stderr, "selected inputmethod style = %s\n",
     519             :              GetMethodName(mnPreeditStyle | mnStatusStyle, pBuf, sizeof(pBuf)) );
     520             : #endif
     521             : 
     522           0 :     return (mnPreeditStyle != 0) && (mnStatusStyle != 0) ;
     523             : }
     524             : 
     525             : // handle extended and normal key input
     526             : 
     527             : int
     528           0 : SalI18N_InputContext::CommitKeyEvent(sal_Unicode* pText, sal_Size nLength)
     529             : {
     530           0 :     if (nLength == 1 && IsControlCode(pText[0]))
     531           0 :         return 0;
     532             : 
     533           0 :     if( maClientData.pFrame )
     534             :     {
     535           0 :         SalExtTextInputEvent aTextEvent;
     536             : 
     537           0 :         aTextEvent.mnTime        = 0;
     538           0 :         aTextEvent.mpTextAttr    = 0;
     539           0 :         aTextEvent.mnCursorPos   = nLength;
     540           0 :         aTextEvent.maText        = OUString(pText, nLength);
     541           0 :         aTextEvent.mnCursorFlags = 0;
     542           0 :         aTextEvent.mbOnlyCursor  = False;
     543             : 
     544           0 :         maClientData.pFrame->CallCallback(SALEVENT_EXTTEXTINPUT,    static_cast<void*>(&aTextEvent));
     545           0 :         maClientData.pFrame->CallCallback(SALEVENT_ENDEXTTEXTINPUT, nullptr);
     546             :     }
     547             : #if OSL_DEBUG_LEVEL > 1
     548             :     else
     549             :         fprintf(stderr, "CommitKeyEvent without frame\n" );
     550             : #endif
     551             : 
     552           0 :     return 0;
     553             : }
     554             : 
     555             : int
     556           0 : SalI18N_InputContext::UpdateSpotLocation()
     557             : {
     558           0 :     if (maContext == 0 || maClientData.pFrame == NULL)
     559           0 :         return -1;
     560             : 
     561           0 :     SalExtTextInputPosEvent aPosEvent;
     562           0 :     maClientData.pFrame->CallCallback(SALEVENT_EXTTEXTINPUTPOS, static_cast<void*>(&aPosEvent));
     563             : 
     564             :     XPoint aSpot;
     565           0 :     aSpot.x = aPosEvent.mnX + aPosEvent.mnWidth;
     566           0 :     aSpot.y = aPosEvent.mnY + aPosEvent.mnHeight;
     567             : 
     568           0 :     XVaNestedList preedit_attr = XVaCreateNestedList(0, XNSpotLocation, &aSpot, NULL);
     569           0 :     XSetICValues(maContext, XNPreeditAttributes, preedit_attr, NULL);
     570           0 :     XFree(preedit_attr);
     571             : 
     572           0 :     I18NStatus::get().show( true, I18NStatus::contextmap );
     573             : 
     574           0 :     return 0;
     575             : }
     576             : 
     577             : // set and unset the focus for the Input Context
     578             : // the context may be NULL despite it is useable if the framewindow is
     579             : // in unmapped state
     580             : 
     581             : void
     582           0 : SalI18N_InputContext::SetICFocus( SalFrame* pFocusFrame )
     583             : {
     584           0 :     I18NStatus::get().setParent( pFocusFrame );
     585           0 :     if ( mbUseable && (maContext != NULL)  )
     586             :     {
     587           0 :         maClientData.pFrame = pFocusFrame;
     588             : 
     589           0 :         const SystemEnvData* pEnv   = pFocusFrame->GetSystemData();
     590           0 :         ::Window  aClientWindow  = pEnv->aShellWindow;
     591           0 :         ::Window  aFocusWindow   = pEnv->aWindow;
     592             : 
     593             :         XSetICValues( maContext,
     594             :                       XNFocusWindow,       aFocusWindow,
     595             :                       XNClientWindow,      aClientWindow,
     596           0 :                       NULL );
     597             : 
     598           0 :         if( maClientData.aInputEv.mpTextAttr )
     599             :         {
     600           0 :             sendEmptyCommit(pFocusFrame);
     601             :             // begin preedit again
     602           0 :             vcl_sal::getSalDisplay(GetGenericData())->SendInternalEvent( pFocusFrame, &maClientData.aInputEv, SALEVENT_EXTTEXTINPUT );
     603             :         }
     604             : 
     605           0 :         XSetICFocus( maContext );
     606             :     }
     607           0 : }
     608             : 
     609             : void
     610           0 : SalI18N_InputContext::UnsetICFocus( SalFrame* pFrame )
     611             : {
     612           0 :     I18NStatus& rStatus( I18NStatus::get() );
     613           0 :     if( rStatus.getParent() == pFrame )
     614           0 :         rStatus.setParent( NULL );
     615             : 
     616           0 :     if ( mbUseable && (maContext != NULL) )
     617             :     {
     618             :         // cancel an eventual event posted to begin preedit again
     619           0 :         vcl_sal::getSalDisplay(GetGenericData())->CancelInternalEvent( maClientData.pFrame, &maClientData.aInputEv, SALEVENT_EXTTEXTINPUT );
     620           0 :         maClientData.pFrame = NULL;
     621           0 :         XUnsetICFocus( maContext );
     622             :     }
     623           0 : }
     624             : 
     625             : // multi byte input method only
     626             : 
     627             : void
     628           0 : SalI18N_InputContext::EndExtTextInput( EndExtTextInputFlags /*nFlags*/ )
     629             : {
     630           0 :     if ( mbUseable && (maContext != NULL) && maClientData.pFrame )
     631             :     {
     632           0 :         vcl::DeletionListener aDel( maClientData.pFrame );
     633             :         // delete preedit in sal (commit an empty string)
     634           0 :         sendEmptyCommit( maClientData.pFrame );
     635           0 :         if( ! aDel.isDeleted() )
     636             :         {
     637             :             // mark previous preedit state again (will e.g. be sent at focus gain)
     638           0 :             maClientData.aInputEv.mpTextAttr = &maClientData.aInputFlags[0];
     639           0 :             if( static_cast<X11SalFrame*>(maClientData.pFrame)->hasFocus() )
     640             :             {
     641             :                 // begin preedit again
     642           0 :                 vcl_sal::getSalDisplay(GetGenericData())->SendInternalEvent( maClientData.pFrame, &maClientData.aInputEv, SALEVENT_EXTTEXTINPUT );
     643             :             }
     644           0 :         }
     645             :     }
     646           9 : }
     647             : 
     648             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

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