Sweden-Number/dlls/imm32/imc.c

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/*
* Input Method Context
*
* Copyright 2000 Hidenori Takeshima
*/
#include "config.h"
#include "winbase.h"
#include "windef.h"
#include "wingdi.h"
#include "winuser.h"
#include "winerror.h"
#include "immddk.h"
#include "debugtools.h"
DEFAULT_DEBUG_CHANNEL(imm);
#include "imm_private.h"
static HIMC IMM32_CreateIMC( HKL hkl );
static BOOL IMM32_DestroyIMC( HIMC hIMC );
IMM32_IMC* IMM32_LockIMC( HIMC hIMC )
{
IMM32_IMC* pIMC;
if ( hIMC == NULLIMC )
{
SetLastError( ERROR_INVALID_HANDLE );
return NULL;
}
pIMC = (IMM32_IMC*)IMM32_MoveableLock( (IMM32_MOVEABLEMEM*)hIMC );
if ( !pIMC->fSelected )
{
(void)IMM32_MoveableUnlock( (IMM32_MOVEABLEMEM*)hIMC );
SetLastError( ERROR_ACCESS_DENIED );
return NULL;
}
return pIMC;
}
BOOL IMM32_UnlockIMC( HIMC hIMC )
{
if ( hIMC == NULLIMC )
{
SetLastError( ERROR_INVALID_HANDLE );
return FALSE;
}
return IMM32_MoveableUnlock( (IMM32_MOVEABLEMEM*)hIMC );
}
static HIMC IMM32_CreateIMC( HKL hkl )
{
IMM32_MOVEABLEMEM* hIMC;
IMM32_IMC* pIMC;
LPCOMPOSITIONSTRING lpCompStr;
LPCANDIDATEINFO lpCandInfo;
LPGUIDELINE lpGuideLine;
hIMC = IMM32_MoveableAlloc( 0, sizeof( IMM32_IMC ) );
if ( hIMC == NULL )
{
SetLastError( ERROR_OUTOFMEMORY );
return NULLIMC;
}
pIMC = (IMM32_IMC*)IMM32_MoveableLock( hIMC );
/* Initialize some members of IMC. */
pIMC->context.hWnd = (HWND)NULL;
pIMC->context.fOpen = FALSE;
pIMC->context.hCompStr = (HIMCC)NULL;
pIMC->context.hCandInfo = (HIMCC)NULL;
pIMC->context.hGuideLine = (HIMCC)NULL;
pIMC->context.hPrivate = (HIMCC)NULL;
pIMC->context.dwNumMsgBuf = 0;
pIMC->context.hMsgBuf = (HIMCC)NULL;
pIMC->context.fdwInit = 0;
pIMC->pkl = NULL;
pIMC->fSelected = FALSE;
/* hCompStr, hCandInfo, hGuideLine, hMsgBuf must be allocated. */
pIMC->context.hCompStr = ImmCreateIMCC( sizeof(COMPOSITIONSTRING) );
if ( pIMC->context.hCompStr == (HIMCC)NULL )
goto out_of_memory;
lpCompStr = (LPCOMPOSITIONSTRING)ImmLockIMCC( pIMC->context.hCompStr );
if ( lpCompStr == NULL )
goto out_of_memory;
lpCompStr->dwSize = sizeof(COMPOSITIONSTRING);
(void)ImmUnlockIMCC( pIMC->context.hCompStr );
pIMC->context.hCandInfo = ImmCreateIMCC( sizeof(CANDIDATEINFO) );
if ( pIMC->context.hCandInfo == (HIMCC)NULL )
goto out_of_memory;
lpCandInfo = (LPCANDIDATEINFO)ImmLockIMCC( pIMC->context.hCandInfo );
if ( lpCandInfo == NULL )
goto out_of_memory;
lpCandInfo->dwSize = sizeof(CANDIDATEINFO);
(void)ImmUnlockIMCC( pIMC->context.hCandInfo );
pIMC->context.hGuideLine = ImmCreateIMCC( sizeof(GUIDELINE) );
if ( pIMC->context.hGuideLine == (HIMCC)NULL )
goto out_of_memory;
lpGuideLine = (LPGUIDELINE)ImmLockIMCC( pIMC->context.hGuideLine );
if ( lpGuideLine == NULL )
goto out_of_memory;
lpGuideLine->dwSize = sizeof(GUIDELINE);
(void)ImmUnlockIMCC( pIMC->context.hGuideLine );
pIMC->context.hMsgBuf = ImmCreateIMCC( 0 );
if ( pIMC->context.hMsgBuf == (HIMCC)NULL )
goto out_of_memory;
pIMC->pkl = IMM32_GetIME( hkl );
if ( pIMC->pkl != NULL )
{
/* The current HKL is IME.
* Initialize IME's private context.
*/
if ( pIMC->pkl->imeinfo.dwPrivateDataSize > 0 )
{
pIMC->context.hPrivate = ImmCreateIMCC(
pIMC->pkl->imeinfo.dwPrivateDataSize );
if ( pIMC->context.hPrivate == (HIMCC)NULL )
goto out_of_memory;
}
pIMC->fSelected = TRUE;
if ( !pIMC->pkl->handlers.pImeSelect( (HIMC)hIMC, TRUE ) )
{
pIMC->fSelected = FALSE;
goto out_of_memory;
}
}
(void)IMM32_MoveableUnlock( hIMC );
return (HIMC)hIMC;
out_of_memory:
(void)IMM32_DestroyIMC( (HIMC)hIMC );
SetLastError( ERROR_OUTOFMEMORY );
return NULLIMC;
}
static BOOL IMM32_DestroyIMC( HIMC hIMC )
{
IMM32_IMC* pIMC;
if ( hIMC == NULLIMC )
{
SetLastError( ERROR_INVALID_HANDLE );
return FALSE;
}
pIMC = (IMM32_IMC*)IMM32_MoveableLock( (IMM32_MOVEABLEMEM*)hIMC );
if ( pIMC->context.hWnd != (HWND)NULL )
{
2001-05-09 19:31:31 +02:00
FIXME( "please release lock of the context.hWnd!\n" );
}
if ( pIMC->fSelected )
{
(void)pIMC->pkl->handlers.pImeSelect( hIMC, FALSE );
pIMC->fSelected = FALSE;
}
if ( pIMC->context.hCompStr != (HIMCC)NULL )
(void)ImmDestroyIMCC(pIMC->context.hCompStr);
if ( pIMC->context.hCandInfo != (HIMCC)NULL )
(void)ImmDestroyIMCC(pIMC->context.hCandInfo);
if ( pIMC->context.hGuideLine != (HIMCC)NULL )
(void)ImmDestroyIMCC(pIMC->context.hGuideLine);
if ( pIMC->context.hPrivate != (HIMCC)NULL )
(void)ImmDestroyIMCC(pIMC->context.hPrivate);
if ( pIMC->context.hMsgBuf != (HIMCC)NULL )
(void)ImmDestroyIMCC(pIMC->context.hMsgBuf);
IMM32_MoveableFree( (IMM32_MOVEABLEMEM*)hIMC );
return TRUE;
}
/***********************************************************************
* ImmCreateContext (IMM32.@)
*/
HIMC WINAPI ImmCreateContext( void )
{
TRACE("()\n");
return IMM32_CreateIMC( GetKeyboardLayout(0) );
}
/***********************************************************************
* ImmDestroyContext (IMM32.@)
*/
BOOL WINAPI ImmDestroyContext( HIMC hIMC )
{
TRACE("(0x%08x)\n",hIMC);
return IMM32_DestroyIMC( hIMC );
}
/***********************************************************************
* ImmLockIMC (IMM32.@)
*/
LPINPUTCONTEXT WINAPI ImmLockIMC(HIMC hIMC)
{
IMM32_IMC* pIMC;
TRACE("(0x%08x)\n", (unsigned)hIMC);
pIMC = IMM32_LockIMC( hIMC );
if ( pIMC == NULL )
return NULL;
return &(pIMC->context);
}
/***********************************************************************
* ImmUnlockIMC (IMM32.@)
*/
BOOL WINAPI ImmUnlockIMC(HIMC hIMC)
{
TRACE("(0x%08x)\n", (unsigned)hIMC);
return IMM32_UnlockIMC( hIMC );
}
/***********************************************************************
* ImmGetIMCLockCount (IMM32.@)
*/
DWORD WINAPI ImmGetIMCLockCount(HIMC hIMC)
{
TRACE("(0x%08x)\n", (unsigned)hIMC);
if ( hIMC == NULLIMC )
{
SetLastError( ERROR_INVALID_HANDLE );
return 0;
}
return IMM32_MoveableGetLockCount( (IMM32_MOVEABLEMEM*)hIMC );
}