mirror of
https://github.com/reactos/reactos.git
synced 2024-06-28 17:01:28 +00:00
439 lines
12 KiB
C
439 lines
12 KiB
C
/*
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* PROJECT: ReactOS IMM32
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* LICENSE: LGPL-2.1-or-later (https://spdx.org/licenses/LGPL-2.1-or-later)
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* PURPOSE: Implementing IMM32 candidate lists
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* COPYRIGHT: Copyright 2020-2021 Katayama Hirofumi MZ <katayama.hirofumi.mz@gmail.com>
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*/
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#include "precomp.h"
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WINE_DEFAULT_DEBUG_CHANNEL(imm);
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// Win: InternalGetCandidateListWtoA
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DWORD APIENTRY
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CandidateListWideToAnsi(const CANDIDATELIST *pWideCL, LPCANDIDATELIST pAnsiCL, DWORD dwBufLen,
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UINT uCodePage)
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{
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BOOL bUsedDefault;
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DWORD dwSize, dwIndex, cbGot, cbLeft;
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const BYTE *pbWide;
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LPBYTE pbAnsi;
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LPDWORD pibOffsets;
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/* calculate total ansi size */
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if (pWideCL->dwCount > 0)
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{
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dwSize = sizeof(CANDIDATELIST) + ((pWideCL->dwCount - 1) * sizeof(DWORD));
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for (dwIndex = 0; dwIndex < pWideCL->dwCount; ++dwIndex)
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{
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pbWide = (const BYTE *)pWideCL + pWideCL->dwOffset[dwIndex];
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cbGot = WideCharToMultiByte(uCodePage, 0, (LPCWSTR)pbWide, -1, NULL, 0,
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NULL, &bUsedDefault);
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dwSize += cbGot;
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}
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}
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else
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{
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dwSize = sizeof(CANDIDATELIST);
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}
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dwSize = ROUNDUP4(dwSize);
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if (dwBufLen == 0)
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return dwSize;
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if (dwBufLen < dwSize)
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return 0;
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/* store to ansi */
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pAnsiCL->dwSize = dwBufLen;
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pAnsiCL->dwStyle = pWideCL->dwStyle;
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pAnsiCL->dwCount = pWideCL->dwCount;
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pAnsiCL->dwSelection = pWideCL->dwSelection;
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pAnsiCL->dwPageStart = pWideCL->dwPageStart;
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pAnsiCL->dwPageSize = pWideCL->dwPageSize;
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pibOffsets = pAnsiCL->dwOffset;
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if (pWideCL->dwCount > 0)
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{
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pibOffsets[0] = sizeof(CANDIDATELIST) + ((pWideCL->dwCount - 1) * sizeof(DWORD));
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cbLeft = dwBufLen - pibOffsets[0];
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for (dwIndex = 0; dwIndex < pWideCL->dwCount; ++dwIndex)
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{
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pbWide = (const BYTE *)pWideCL + pWideCL->dwOffset[dwIndex];
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pbAnsi = (LPBYTE)pAnsiCL + pibOffsets[dwIndex];
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/* convert to ansi */
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cbGot = WideCharToMultiByte(uCodePage, 0, (LPCWSTR)pbWide, -1,
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(LPSTR)pbAnsi, cbLeft, NULL, &bUsedDefault);
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cbLeft -= cbGot;
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if (dwIndex < pWideCL->dwCount - 1)
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pibOffsets[dwIndex + 1] = pibOffsets[dwIndex] + cbGot;
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}
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}
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else
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{
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pibOffsets[0] = sizeof(CANDIDATELIST);
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}
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return dwBufLen;
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}
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// Win: InternalGetCandidateListAtoW
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DWORD APIENTRY
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CandidateListAnsiToWide(const CANDIDATELIST *pAnsiCL, LPCANDIDATELIST pWideCL, DWORD dwBufLen,
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UINT uCodePage)
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{
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DWORD dwSize, dwIndex, cchGot, cbGot, cbLeft;
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const BYTE *pbAnsi;
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LPBYTE pbWide;
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LPDWORD pibOffsets;
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/* calculate total wide size */
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if (pAnsiCL->dwCount > 0)
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{
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dwSize = sizeof(CANDIDATELIST) + ((pAnsiCL->dwCount - 1) * sizeof(DWORD));
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for (dwIndex = 0; dwIndex < pAnsiCL->dwCount; ++dwIndex)
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{
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pbAnsi = (const BYTE *)pAnsiCL + pAnsiCL->dwOffset[dwIndex];
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cchGot = MultiByteToWideChar(uCodePage, MB_PRECOMPOSED, (LPCSTR)pbAnsi, -1, NULL, 0);
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dwSize += cchGot * sizeof(WCHAR);
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}
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}
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else
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{
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dwSize = sizeof(CANDIDATELIST);
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}
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dwSize = ROUNDUP4(dwSize);
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if (dwBufLen == 0)
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return dwSize;
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if (dwBufLen < dwSize)
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return 0;
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/* store to wide */
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pWideCL->dwSize = dwBufLen;
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pWideCL->dwStyle = pAnsiCL->dwStyle;
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pWideCL->dwCount = pAnsiCL->dwCount;
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pWideCL->dwSelection = pAnsiCL->dwSelection;
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pWideCL->dwPageStart = pAnsiCL->dwPageStart;
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pWideCL->dwPageSize = pAnsiCL->dwPageSize;
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pibOffsets = pWideCL->dwOffset;
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if (pAnsiCL->dwCount > 0)
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{
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pibOffsets[0] = sizeof(CANDIDATELIST) + ((pWideCL->dwCount - 1) * sizeof(DWORD));
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cbLeft = dwBufLen - pibOffsets[0];
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for (dwIndex = 0; dwIndex < pAnsiCL->dwCount; ++dwIndex)
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{
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pbAnsi = (const BYTE *)pAnsiCL + pAnsiCL->dwOffset[dwIndex];
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pbWide = (LPBYTE)pWideCL + pibOffsets[dwIndex];
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/* convert to wide */
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cchGot = MultiByteToWideChar(uCodePage, MB_PRECOMPOSED, (LPCSTR)pbAnsi, -1,
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(LPWSTR)pbWide, cbLeft / sizeof(WCHAR));
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cbGot = cchGot * sizeof(WCHAR);
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cbLeft -= cbGot;
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if (dwIndex + 1 < pAnsiCL->dwCount)
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pibOffsets[dwIndex + 1] = pibOffsets[dwIndex] + cbGot;
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}
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}
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else
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{
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pibOffsets[0] = sizeof(CANDIDATELIST);
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}
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return dwBufLen;
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}
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// Win: ImmGetCandidateListWorker
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static DWORD APIENTRY
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ImmGetCandidateListAW(HIMC hIMC, DWORD dwIndex, LPCANDIDATELIST lpCandList, DWORD dwBufLen,
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BOOL bAnsi)
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{
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DWORD dwSize, ret = 0;
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UINT uCodePage;
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LPINPUTCONTEXT pIC;
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PCLIENTIMC pClientImc;
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LPCANDIDATEINFO pCI;
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LPCANDIDATELIST pCL;
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pClientImc = ImmLockClientImc(hIMC);
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if (IS_NULL_UNEXPECTEDLY(pClientImc))
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return 0;
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uCodePage = pClientImc->uCodePage;
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pIC = ImmLockIMC(hIMC);
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if (IS_NULL_UNEXPECTEDLY(pIC))
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{
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ImmUnlockClientImc(pClientImc);
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return 0;
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}
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pCI = ImmLockIMCC(pIC->hCandInfo);
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if (IS_NULL_UNEXPECTEDLY(pCI))
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{
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ImmUnlockIMC(hIMC);
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ImmUnlockClientImc(pClientImc);
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return 0;
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}
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if (pCI->dwSize < sizeof(CANDIDATEINFO))
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{
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ERR("Too small\n");
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goto Quit;
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}
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if (pCI->dwCount <= dwIndex)
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{
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ERR("Out of boundary\n");
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goto Quit;
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}
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/* get required size */
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pCL = (LPCANDIDATELIST)((LPBYTE)pCI + pCI->dwOffset[dwIndex]);
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if (bAnsi)
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{
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if (pClientImc->dwFlags & CLIENTIMC_WIDE)
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dwSize = CandidateListAnsiToWide(pCL, NULL, 0, uCodePage);
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else
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dwSize = pCL->dwSize;
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}
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else
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{
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if (pClientImc->dwFlags & CLIENTIMC_WIDE)
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dwSize = pCL->dwSize;
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else
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dwSize = CandidateListWideToAnsi(pCL, NULL, 0, uCodePage);
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}
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if (dwBufLen != 0 && dwSize != 0)
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{
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if (lpCandList == NULL || dwBufLen < dwSize)
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goto Quit;
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/* store */
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if (bAnsi)
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{
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if (pClientImc->dwFlags & CLIENTIMC_WIDE)
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CandidateListAnsiToWide(pCL, lpCandList, dwSize, uCodePage);
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else
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RtlCopyMemory(lpCandList, pCL, dwSize);
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}
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else
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{
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if (pClientImc->dwFlags & CLIENTIMC_WIDE)
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RtlCopyMemory(lpCandList, pCL, dwSize);
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else
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CandidateListWideToAnsi(pCL, lpCandList, dwSize, uCodePage);
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}
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}
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ret = dwSize;
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Quit:
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ImmUnlockIMCC(pIC->hCandInfo);
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ImmUnlockIMC(hIMC);
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ImmUnlockClientImc(pClientImc);
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TRACE("ret: 0x%X\n", ret);
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return ret;
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}
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// Win: ImmGetCandidateListCountWorker
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DWORD APIENTRY
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ImmGetCandidateListCountAW(HIMC hIMC, LPDWORD lpdwListCount, BOOL bAnsi)
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{
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DWORD ret = 0, cbGot, dwIndex;
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PCLIENTIMC pClientImc;
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LPINPUTCONTEXT pIC;
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UINT uCodePage;
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const CANDIDATEINFO *pCI;
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const BYTE *pb;
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const CANDIDATELIST *pCL;
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const DWORD *pdwOffsets;
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if (IS_NULL_UNEXPECTEDLY(lpdwListCount))
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return 0;
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*lpdwListCount = 0;
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pClientImc = ImmLockClientImc(hIMC);
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if (IS_NULL_UNEXPECTEDLY(pClientImc))
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return 0;
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pIC = ImmLockIMC(hIMC);
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if (IS_NULL_UNEXPECTEDLY(pIC))
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{
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ImmUnlockClientImc(pClientImc);
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return 0;
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}
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uCodePage = pClientImc->uCodePage;
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pCI = ImmLockIMCC(pIC->hCandInfo);
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if (IS_NULL_UNEXPECTEDLY(pCI))
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{
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ImmUnlockIMC(hIMC);
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ImmUnlockClientImc(pClientImc);
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return 0;
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}
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if (pCI->dwSize < sizeof(CANDIDATEINFO))
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{
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ERR("Too small\n");
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goto Quit;
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}
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*lpdwListCount = pCI->dwCount; /* the number of candidate lists */
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/* calculate total size of candidate lists */
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if (bAnsi)
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{
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if (pClientImc->dwFlags & CLIENTIMC_WIDE)
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{
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ret = ROUNDUP4(pCI->dwPrivateSize);
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pdwOffsets = pCI->dwOffset;
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for (dwIndex = 0; dwIndex < pCI->dwCount; ++dwIndex)
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{
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pb = (const BYTE *)pCI + pdwOffsets[dwIndex];
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pCL = (const CANDIDATELIST *)pb;
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cbGot = CandidateListWideToAnsi(pCL, NULL, 0, uCodePage);
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ret += cbGot;
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}
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}
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else
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{
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ret = pCI->dwSize;
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}
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}
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else
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{
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if (pClientImc->dwFlags & CLIENTIMC_WIDE)
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{
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ret = pCI->dwSize;
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}
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else
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{
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ret = ROUNDUP4(pCI->dwPrivateSize);
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pdwOffsets = pCI->dwOffset;
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for (dwIndex = 0; dwIndex < pCI->dwCount; ++dwIndex)
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{
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pb = (const BYTE *)pCI + pdwOffsets[dwIndex];
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pCL = (const CANDIDATELIST *)pb;
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cbGot = CandidateListAnsiToWide(pCL, NULL, 0, uCodePage);
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ret += cbGot;
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}
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}
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}
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Quit:
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ImmUnlockIMCC(pIC->hCandInfo);
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ImmUnlockIMC(hIMC);
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ImmUnlockClientImc(pClientImc);
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TRACE("ret: 0x%X\n", ret);
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return ret;
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}
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/***********************************************************************
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* ImmGetCandidateListA (IMM32.@)
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*/
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DWORD WINAPI
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ImmGetCandidateListA(HIMC hIMC, DWORD dwIndex, LPCANDIDATELIST lpCandList, DWORD dwBufLen)
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{
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return ImmGetCandidateListAW(hIMC, dwIndex, lpCandList, dwBufLen, TRUE);
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}
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/***********************************************************************
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* ImmGetCandidateListCountA (IMM32.@)
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*/
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DWORD WINAPI ImmGetCandidateListCountA(HIMC hIMC, LPDWORD lpdwListCount)
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{
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return ImmGetCandidateListCountAW(hIMC, lpdwListCount, TRUE);
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}
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/***********************************************************************
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* ImmGetCandidateListCountW (IMM32.@)
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*/
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DWORD WINAPI ImmGetCandidateListCountW(HIMC hIMC, LPDWORD lpdwListCount)
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{
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return ImmGetCandidateListCountAW(hIMC, lpdwListCount, FALSE);
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}
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/***********************************************************************
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* ImmGetCandidateListW (IMM32.@)
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*/
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DWORD WINAPI
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ImmGetCandidateListW(HIMC hIMC, DWORD dwIndex, LPCANDIDATELIST lpCandList, DWORD dwBufLen)
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{
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return ImmGetCandidateListAW(hIMC, dwIndex, lpCandList, dwBufLen, FALSE);
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}
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/***********************************************************************
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* ImmGetCandidateWindow (IMM32.@)
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*/
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BOOL WINAPI
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ImmGetCandidateWindow(HIMC hIMC, DWORD dwIndex, LPCANDIDATEFORM lpCandidate)
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{
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BOOL ret = FALSE;
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LPINPUTCONTEXT pIC;
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LPCANDIDATEFORM pCF;
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TRACE("(%p, %lu, %p)\n", hIMC, dwIndex, lpCandidate);
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if (dwIndex >= MAX_CANDIDATEFORM) /* Windows didn't check but we do for security reason */
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{
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ERR("Out of boundary\n");
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return FALSE;
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}
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pIC = ImmLockIMC(hIMC);
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if (IS_NULL_UNEXPECTEDLY(pIC))
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return FALSE;
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pCF = &pIC->cfCandForm[dwIndex];
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if (pCF->dwIndex != IMM_INVALID_CANDFORM)
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{
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*lpCandidate = *pCF;
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ret = TRUE;
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}
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ImmUnlockIMC(hIMC);
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TRACE("ret: %d\n", ret);
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return ret;
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}
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/***********************************************************************
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* ImmSetCandidateWindow (IMM32.@)
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*/
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BOOL WINAPI ImmSetCandidateWindow(HIMC hIMC, LPCANDIDATEFORM lpCandidate)
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{
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HWND hWnd;
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LPINPUTCONTEXT pIC;
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TRACE("(%p, %p)\n", hIMC, lpCandidate);
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if (lpCandidate->dwIndex >= MAX_CANDIDATEFORM)
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{
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ERR("Out of boundary\n");
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return FALSE;
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}
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if (IS_CROSS_THREAD_HIMC(hIMC))
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return FALSE;
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pIC = ImmLockIMC(hIMC);
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if (IS_NULL_UNEXPECTEDLY(pIC))
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return FALSE;
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hWnd = pIC->hWnd;
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pIC->cfCandForm[lpCandidate->dwIndex] = *lpCandidate;
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ImmUnlockIMC(hIMC);
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Imm32MakeIMENotify(hIMC, hWnd, NI_CONTEXTUPDATED, 0, IMC_SETCANDIDATEPOS,
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IMN_SETCANDIDATEPOS, (1 << (BYTE)lpCandidate->dwIndex));
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return TRUE;
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}
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