diff options
Diffstat (limited to 'vcl/unx/generic/app/i18n_cb.cxx')
| -rw-r--r-- | vcl/unx/generic/app/i18n_cb.cxx | 664 |
1 files changed, 664 insertions, 0 deletions
diff --git a/vcl/unx/generic/app/i18n_cb.cxx b/vcl/unx/generic/app/i18n_cb.cxx new file mode 100644 index 000000000000..341c1263ac9e --- /dev/null +++ b/vcl/unx/generic/app/i18n_cb.cxx @@ -0,0 +1,664 @@ +/************************************************************************* + * + * 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 <string.h> + +#include <sal/alloca.h> +#include <osl/thread.h> + +#include <tools/prex.h> +#include <X11/Xlocale.h> +#include <X11/Xlib.h> +#include <tools/postx.h> + +#include "unx/salunx.h" +#include "unx/XIM.h" +#include "unx/i18n_cb.hxx" +#include "unx/i18n_status.hxx" +#include "unx/i18n_ic.hxx" +#include "unx/i18n_im.hxx" +#include "salframe.hxx" + +// ------------------------------------------------------------------------- +// +// i. preedit start callback +// +// ------------------------------------------------------------------------- + +int +PreeditStartCallback ( XIC, XPointer client_data, XPointer ) +{ + preedit_data_t* pPreeditData = (preedit_data_t*)client_data; + if ( pPreeditData->eState == ePreeditStatusActivationRequired ) + { + pPreeditData->eState = ePreeditStatusActive; + pPreeditData->aText.nCursorPos = 0; + pPreeditData->aText.nLength = 0; + } + + return -1; +} + +// ------------------------------------------------------------------------- +// +// ii. preedit done callback +// +// ------------------------------------------------------------------------- + +void +PreeditDoneCallback ( XIC, XPointer client_data, XPointer ) +{ + preedit_data_t* pPreeditData = (preedit_data_t*)client_data; + if (pPreeditData->eState == ePreeditStatusActive ) + { + if( pPreeditData->pFrame ) + pPreeditData->pFrame->CallCallback( SALEVENT_ENDEXTTEXTINPUT, (void*)NULL ); + } + pPreeditData->eState = ePreeditStatusStartPending; +} + +// ------------------------------------------------------------------------- +// +// iii. preedit draw callback +// +// ------------------------------------------------------------------------- + +// +// Handle deletion of text in a preedit_draw_callback +// from and howmuch are guaranteed to be nonnegative +// + +void +Preedit_DeleteText(preedit_text_t *ptext, int from, int howmuch) +{ + // If we've been asked to delete no text then just set + // nLength correctly and return + if (ptext->nLength == 0) + { + ptext->nLength = from; + return; + } + + int to = from + howmuch; + + if (to == (int)ptext->nLength) + { + // delete from the end of the text + ptext->nLength = from; + } + else + if (to < (int)ptext->nLength) + { + // cut out of the middle of the text + memmove( (void*)(ptext->pUnicodeBuffer + from), + (void*)(ptext->pUnicodeBuffer + to), + (ptext->nLength - to) * sizeof(sal_Unicode)); + memmove( (void*)(ptext->pCharStyle + from), + (void*)(ptext->pCharStyle + to), + (ptext->nLength - to) * sizeof(XIMFeedback)); + ptext->nLength -= howmuch; + } + else + // if ( to > pText->nLength ) + { + // XXX this indicates an error, are we out of sync ? + fprintf(stderr, "Preedit_DeleteText( from=%i to=%i length=%i )\n", + from, to, ptext->nLength ); + fprintf (stderr, "\t XXX internal error, out of sync XXX\n"); + + ptext->nLength = from; + } + + // NULL-terminate the string + ptext->pUnicodeBuffer[ptext->nLength] = (sal_Unicode)0; +} + +// reallocate the textbuffer with sufficiently large size 2^x +// nnewlimit is presupposed to be larger than ptext->size +void +enlarge_buffer ( preedit_text_t *ptext, int nnewlimit ) +{ + size_t nnewsize = ptext->nSize; + + while ( nnewsize <= (size_t)nnewlimit ) + nnewsize *= 2; + + ptext->nSize = nnewsize; + ptext->pUnicodeBuffer = (sal_Unicode*)realloc((void*)ptext->pUnicodeBuffer, + nnewsize * sizeof(sal_Unicode)); + ptext->pCharStyle = (XIMFeedback*)realloc((void*)ptext->pCharStyle, + nnewsize * sizeof(XIMFeedback)); +} + +// +// Handle insertion of text in a preedit_draw_callback +// string field of XIMText struct is guaranteed to be != NULL +// + +void +Preedit_InsertText(preedit_text_t *pText, XIMText *pInsertText, int where, + Bool isMultilingual) +{ + sal_Unicode *pInsertTextString; + int nInsertTextLength = 0; + XIMFeedback *pInsertTextCharStyle = pInsertText->feedback; + + nInsertTextLength = pInsertText->length; + + if (isMultilingual) + { + XIMUnicodeText *pUniText = (XIMUnicodeText*)pInsertText; + pInsertTextString = pUniText->string.utf16_char; + } + else + { + // can't handle wchar_t strings, so convert to multibyte chars first + char *pMBString; + size_t nMBLength; + if (pInsertText->encoding_is_wchar) + { + wchar_t *pWCString = pInsertText->string.wide_char; + size_t nBytes = wcstombs ( NULL, pWCString, 1024 /* dont care */); + pMBString = (char*)alloca( nBytes + 1 ); + nMBLength = wcstombs ( pMBString, pWCString, nBytes + 1); + } + else + { + pMBString = pInsertText->string.multi_byte; + nMBLength = strlen(pMBString); // xxx + } + + // convert multibyte chars to unicode + rtl_TextEncoding nEncoding = osl_getThreadTextEncoding(); + + if (nEncoding != RTL_TEXTENCODING_UNICODE) + { + rtl_TextToUnicodeConverter aConverter = + rtl_createTextToUnicodeConverter( nEncoding ); + rtl_TextToUnicodeContext aContext = + rtl_createTextToUnicodeContext(aConverter); + + sal_Size nBufferSize = nInsertTextLength * 2; + + pInsertTextString = (sal_Unicode*)alloca(nBufferSize); + + sal_uInt32 nConversionInfo; + sal_Size nConvertedChars; + + rtl_convertTextToUnicode( aConverter, aContext, + pMBString, nMBLength, + pInsertTextString, nBufferSize, + RTL_TEXTTOUNICODE_FLAGS_UNDEFINED_IGNORE + | RTL_TEXTTOUNICODE_FLAGS_INVALID_IGNORE, + &nConversionInfo, &nConvertedChars ); + + rtl_destroyTextToUnicodeContext(aConverter, aContext); + rtl_destroyTextToUnicodeConverter(aConverter); + + } + else + { + pInsertTextString = (sal_Unicode*)pMBString; + } + } + + // enlarge target text-buffer if necessary + if (pText->nSize <= (pText->nLength + nInsertTextLength)) + enlarge_buffer(pText, pText->nLength + nInsertTextLength); + + // insert text: displace old mem and put new bytes in + int from = where; + int to = where + nInsertTextLength; + int howmany = pText->nLength - where; + + memmove((void*)(pText->pUnicodeBuffer + to), + (void*)(pText->pUnicodeBuffer + from), + howmany * sizeof(sal_Unicode)); + memmove((void*)(pText->pCharStyle + to), + (void*)(pText->pCharStyle + from), + howmany * sizeof(XIMFeedback)); + + to = from; + howmany = nInsertTextLength; + + memcpy((void*)(pText->pUnicodeBuffer + to), (void*)pInsertTextString, + howmany * sizeof(sal_Unicode)); + memcpy((void*)(pText->pCharStyle + to), (void*)pInsertTextCharStyle, + howmany * sizeof(XIMFeedback)); + + pText->nLength += howmany; + + // NULL-terminate the string + pText->pUnicodeBuffer[pText->nLength] = (sal_Unicode)0; +} + +// +// Handle the change of attributes in a preedit_draw_callback +// +void +Preedit_UpdateAttributes ( preedit_text_t* ptext, XIMFeedback* feedback, + int from, int amount ) +{ + if ( (from + amount) > (int)ptext->nLength ) + { + // XXX this indicates an error, are we out of sync ? + fprintf (stderr, "Preedit_UpdateAttributes( %i + %i > %i )\n", + from, amount, ptext->nLength ); + fprintf (stderr, "\t XXX internal error, out of sync XXX\n"); + + return; + } + + memcpy ( ptext->pCharStyle + from, + feedback, amount * sizeof(XIMFeedback) ); +} + +// Convert the XIM feedback values into appropriate VCL +// SAL_EXTTEXTINPUT_ATTR values +// returns an allocate list of attributes, which must be freed by caller +sal_uInt16* +Preedit_FeedbackToSAL ( XIMFeedback* pfeedback, int nlength, std::vector<sal_uInt16>& rSalAttr ) +{ + sal_uInt16 *psalattr; + sal_uInt16 nval; + sal_uInt16 noldval = 0; + XIMFeedback nfeedback; + + // only work with reasonable length + if (nlength > 0 && nlength > sal::static_int_cast<int>(rSalAttr.size()) ) + { + rSalAttr.reserve( nlength ); + psalattr = &rSalAttr[0]; + } + else + return (sal_uInt16*)NULL; + + for (int npos = 0; npos < nlength; npos++) + { + nval = 0; + nfeedback = pfeedback[npos]; + + // means to use the feedback of the previous char + if (nfeedback == 0) + { + nval = noldval; + } + // convert feedback to attributes + else + { + if (nfeedback & XIMReverse) + nval |= SAL_EXTTEXTINPUT_ATTR_HIGHLIGHT; + if (nfeedback & XIMUnderline) + nval |= SAL_EXTTEXTINPUT_ATTR_UNDERLINE; + if (nfeedback & XIMHighlight) + nval |= SAL_EXTTEXTINPUT_ATTR_HIGHLIGHT; + if (nfeedback & XIMPrimary) + nval |= SAL_EXTTEXTINPUT_ATTR_DOTTEDUNDERLINE; + if (nfeedback & XIMSecondary) + nval |= SAL_EXTTEXTINPUT_ATTR_DASHDOTUNDERLINE; + if (nfeedback & XIMTertiary) // same as 2ery + nval |= SAL_EXTTEXTINPUT_ATTR_DASHDOTUNDERLINE; + + /* + // visibility feedback not supported now + if ( (nfeedback & XIMVisibleToForward) + || (nfeedback & XIMVisibleToBackward) + || (nfeedback & XIMVisibleCenter) ) + { } + */ + } + // copy in list + psalattr[npos] = nval; + noldval = nval; + } + // return list of sal attributes + return psalattr; +} + +void +PreeditDrawCallback(XIC ic, XPointer client_data, + XIMPreeditDrawCallbackStruct *call_data) +{ + preedit_data_t* pPreeditData = (preedit_data_t*)client_data; + + // if there's nothing to change then change nothing + if ( ( (call_data->text == NULL) && (call_data->chg_length == 0) ) + || pPreeditData->pFrame == NULL ) + return; + + // #88564# Solaris 7 deletes the preedit buffer after commit + // since the next call to preeditstart will have the same effect just skip this. + // if (pPreeditData->eState == ePreeditStatusStartPending && call_data->text == NULL) + // return; + + if ( pPreeditData->eState == ePreeditStatusStartPending ) + pPreeditData->eState = ePreeditStatusActivationRequired; + PreeditStartCallback( ic, client_data, NULL ); + + // Edit the internal textbuffer as indicated by the call_data, + // chg_first and chg_length are guaranteed to be nonnegative + + // handle text deletion + if (call_data->text == NULL) + { + Preedit_DeleteText(&(pPreeditData->aText), + call_data->chg_first, call_data->chg_length ); + } + else + { + // handle text insertion + if ( (call_data->chg_length == 0) + && (call_data->text->string.wide_char != NULL)) + { + Preedit_InsertText(&(pPreeditData->aText), call_data->text, + call_data->chg_first, pPreeditData->bIsMultilingual); + } + else + // handle text replacement by deletion and insertion of text, + // not smart, just good enough + if ( (call_data->chg_length != 0) + && (call_data->text->string.wide_char != NULL)) + { + Preedit_DeleteText(&(pPreeditData->aText), + call_data->chg_first, call_data->chg_length); + Preedit_InsertText(&(pPreeditData->aText), call_data->text, + call_data->chg_first, pPreeditData->bIsMultilingual); + } + else + // not really a text update, only attributes are concerned + if ( (call_data->chg_length != 0) + && (call_data->text->string.wide_char == NULL)) + { + Preedit_UpdateAttributes(&(pPreeditData->aText), + call_data->text->feedback, + call_data->chg_first, call_data->chg_length); + } + } + + // + // build the SalExtTextInputEvent and send it up + // + pPreeditData->aInputEv.mnTime = 0; + pPreeditData->aInputEv.mpTextAttr = Preedit_FeedbackToSAL( + pPreeditData->aText.pCharStyle, pPreeditData->aText.nLength, pPreeditData->aInputFlags); + pPreeditData->aInputEv.mnCursorPos = call_data->caret; + pPreeditData->aInputEv.maText = String (pPreeditData->aText.pUnicodeBuffer, + pPreeditData->aText.nLength); + pPreeditData->aInputEv.mnCursorFlags = 0; // default: make cursor visible + pPreeditData->aInputEv.mnDeltaStart = 0; // call_data->chg_first; + pPreeditData->aInputEv.mbOnlyCursor = False; + + if ( pPreeditData->eState == ePreeditStatusActive && pPreeditData->pFrame ) + pPreeditData->pFrame->CallCallback(SALEVENT_EXTTEXTINPUT, (void*)&pPreeditData->aInputEv); + if (pPreeditData->aText.nLength == 0 && pPreeditData->pFrame ) + pPreeditData->pFrame->CallCallback( SALEVENT_ENDEXTTEXTINPUT, (void*)NULL ); + + if (pPreeditData->aText.nLength == 0) + pPreeditData->eState = ePreeditStatusStartPending; + + GetPreeditSpotLocation(ic, (XPointer)pPreeditData); +} + +void +GetPreeditSpotLocation(XIC ic, XPointer client_data) +{ + // + // Send SalEventExtTextInputPos event to get spotlocation + // + SalExtTextInputPosEvent mPosEvent; + preedit_data_t* pPreeditData = (preedit_data_t*)client_data; + + if( pPreeditData->pFrame ) + pPreeditData->pFrame->CallCallback(SALEVENT_EXTTEXTINPUTPOS, (void*)&mPosEvent); + + XPoint point; + point.x = mPosEvent.mnX + mPosEvent.mnWidth; + point.y = mPosEvent.mnY + mPosEvent.mnHeight; + + XVaNestedList preedit_attr; + preedit_attr = XVaCreateNestedList(0, XNSpotLocation, &point, NULL); + XSetICValues(ic, XNPreeditAttributes, preedit_attr, NULL); + XFree(preedit_attr); + + return; +} + +// ------------------------------------------------------------------------- +// +// iv. preedit caret callback +// +// ------------------------------------------------------------------------- + +#if OSL_DEBUG_LEVEL > 1 +void +PreeditCaretCallback ( XIC ic, XPointer client_data, + XIMPreeditCaretCallbackStruct *call_data ) +#else +void +PreeditCaretCallback ( XIC, XPointer,XIMPreeditCaretCallbackStruct* ) +#endif +{ + #if OSL_DEBUG_LEVEL > 1 + // XXX PreeditCaretCallback is pure debug code for now + const char *direction = "?"; + const char *style = "?"; + + switch ( call_data->style ) + { + case XIMIsInvisible: style = "Invisible"; break; + case XIMIsPrimary: style = "Primary"; break; + case XIMIsSecondary: style = "Secondary"; break; + } + switch ( call_data->direction ) + { + case XIMForwardChar: direction = "Forward char"; break; + case XIMBackwardChar: direction = "Backward char"; break; + case XIMForwardWord: direction = "Forward word"; break; + case XIMBackwardWord: direction = "Backward word"; break; + case XIMCaretUp: direction = "Caret up"; break; + case XIMCaretDown: direction = "Caret down"; break; + case XIMNextLine: direction = "Next line"; break; + case XIMPreviousLine: direction = "Previous line"; break; + case XIMLineStart: direction = "Line start"; break; + case XIMLineEnd: direction = "Line end"; break; + case XIMAbsolutePosition: direction = "Absolute"; break; + case XIMDontChange: direction = "Dont change"; break; + } + + fprintf (stderr, "PreeditCaretCallback( ic=%p, client=%p,\n", + ic, client_data ); + fprintf (stderr, "\t position=%i, direction=\"%s\", style=\"%s\" )\n", + call_data->position, direction, style ); + #endif +} + +// ----------------------------------------------------------------------- +// +// v. commit string callback: convert an extended text input (iiimp ... ) +// into an ordinary key-event +// +// ----------------------------------------------------------------------- + +Bool +IsControlCode(sal_Unicode nChar) +{ + if ( nChar <= 0x1F // C0 controls + /* || (0x80 <= nChar && nChar <= 0x9F) C1 controls */ ) + return True; + else + return False; +} + +int +CommitStringCallback( XIC ic, XPointer client_data, XPointer call_data ) +{ + preedit_data_t* pPreeditData = (preedit_data_t*)client_data; + + XIMUnicodeText *cbtext = (XIMUnicodeText *)call_data; + sal_Unicode *p_unicode_data = (sal_Unicode*)cbtext->string.utf16_char; + + // #86964# filter unexpected pure control events + if (cbtext->length == 1 && IsControlCode(p_unicode_data[0]) ) + { + if( pPreeditData->pFrame ) + { + pPreeditData->pFrame->CallCallback( SALEVENT_ENDEXTTEXTINPUT, (void*)NULL ); + } + } + else + { + if( pPreeditData->pFrame ) + { + pPreeditData->aInputEv.mnTime = 0; + pPreeditData->aInputEv.mpTextAttr = 0; + pPreeditData->aInputEv.mnCursorPos = cbtext->length; + pPreeditData->aInputEv.maText = UniString(p_unicode_data, cbtext->length); + pPreeditData->aInputEv.mnCursorFlags = 0; // default: make cursor visible + pPreeditData->aInputEv.mnDeltaStart = 0; + pPreeditData->aInputEv.mbOnlyCursor = False; + + pPreeditData->pFrame->CallCallback( SALEVENT_EXTTEXTINPUT, (void*)&pPreeditData->aInputEv); + pPreeditData->pFrame->CallCallback( SALEVENT_ENDEXTTEXTINPUT, (void*)NULL ); + } + } + pPreeditData->eState = ePreeditStatusStartPending; + + GetPreeditSpotLocation(ic, (XPointer)pPreeditData); + + return 0; +} + +// ---------------------------------------------------------------------------------- +// +// vi. status callbacks: for now these are empty, they are just needed for turbo linux +// +// ---------------------------------------------------------------------------------- + +void +StatusStartCallback (XIC, XPointer, XPointer) +{ + return; +} + +void +StatusDoneCallback (XIC, XPointer, XPointer) +{ + return; +} + +void +StatusDrawCallback (XIC ic, XPointer client_data, XIMStatusDrawCallbackStruct *call_data) +{ + preedit_data_t* pPreeditData = (preedit_data_t*)client_data; + if( pPreeditData->bIsMultilingual ) + { + // IIIMP + XIMUnicodeText *cbtext = (XIMUnicodeText *)call_data->data.text; + ::vcl::I18NStatus::get().setStatusText( String( cbtext->string.utf16_char, call_data->data.text->length ) ); + XIMUnicodeCharacterSubset* pSubset = NULL; + if( ! XGetICValues( ic, + XNUnicodeCharacterSubset, & pSubset, + NULL ) + && pSubset ) + { + ::vcl::I18NStatus::get().changeIM( String( ByteString( pSubset->name ), RTL_TEXTENCODING_UTF8 ) ); +#if OSL_DEBUG_LEVEL > 1 + fprintf( stderr, "got XNUnicodeCharacterSubset\n %d\n %d\n %s\n %d\n", pSubset->index, pSubset->subset_id, pSubset->name, pSubset->is_active ); +#endif + } + } + else if( call_data->type == XIMTextType ) + { + String aText; + if( call_data->data.text ) + { + // XIM with text + sal_Char* pMBString = NULL; + size_t nLength = 0; + if( call_data->data.text->encoding_is_wchar ) + { + if( call_data->data.text->string.wide_char ) + { + wchar_t* pWString = call_data->data.text->string.wide_char; + size_t nBytes = wcstombs( NULL, pWString, 1024 ); + pMBString = (sal_Char*)alloca( nBytes+1 ); + nLength = wcstombs( pMBString, pWString, nBytes+1 ); + } + } + else + { + if( call_data->data.text->string.multi_byte ) + { + pMBString = call_data->data.text->string.multi_byte; + nLength = strlen( pMBString ); + } + } + if( nLength ) + aText = String( pMBString, nLength, gsl_getSystemTextEncoding() ); + } + ::vcl::I18NStatus::get().setStatusText( aText ); + } +#if OSL_DEBUG_LEVEL > 1 + else + fprintf( stderr, "XIMStatusDataType %s not supported\n", + call_data->type == XIMBitmapType ? "XIMBitmapType" : ByteString::CreateFromInt32( call_data->type ).GetBuffer() ); +#endif + return; +} + +void +SwitchIMCallback (XIC, XPointer, XPointer call_data) +{ + XIMSwitchIMNotifyCallbackStruct* pCallData = (XIMSwitchIMNotifyCallbackStruct*)call_data; + ::vcl::I18NStatus::get().changeIM( String( ByteString( pCallData->to->name ), RTL_TEXTENCODING_UTF8 ) ); +} + +// ---------------------------------------------------------------------------------- +// +// vii. destroy callbacks: internally disable all IC/IM calls +// +// ---------------------------------------------------------------------------------- + +void +IC_IMDestroyCallback (XIM, XPointer client_data, XPointer) +{ + SalI18N_InputContext *pContext = (SalI18N_InputContext*)client_data; + if (pContext != NULL) + pContext->HandleDestroyIM(); +} + +void +IM_IMDestroyCallback (XIM, XPointer client_data, XPointer) +{ + SalI18N_InputMethod *pMethod = (SalI18N_InputMethod*)client_data; + if (pMethod != NULL) + pMethod->HandleDestroyIM(); +} |