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git://source.winehq.org/git/wine.git
synced 2024-09-01 05:23:41 +00:00
notepad: Detect if saving will lose information.
This commit is contained in:
parent
67766392bf
commit
84fd1c84f8
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@ -131,4 +131,11 @@ memory."
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STRING_UNICODE_LE, "Unicode (UTF-16)"
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STRING_UNICODE_LE, "Unicode (UTF-16)"
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STRING_UNICODE_BE, "Unicode (UTF-16 big-endian)"
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STRING_UNICODE_BE, "Unicode (UTF-16 big-endian)"
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STRING_LOSS_OF_UNICODE_CHARACTERS, "%s\n\
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This file contains Unicode characters which will be lost if \n\
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you save this file in the %s encoding. \n\
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To keep these characters, click Cancel, and then select \n\
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one of the Unicode options in the Encoding drop down list. \n\
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Continue?"
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}
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}
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@ -142,6 +142,23 @@ static int AlertFileNotSaved(LPCWSTR szFileName)
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MB_ICONQUESTION|MB_YESNOCANCEL);
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MB_ICONQUESTION|MB_YESNOCANCEL);
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}
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}
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static int AlertUnicodeCharactersLost(LPCWSTR szFileName)
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{
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WCHAR szMsgFormat[MAX_STRING_LEN];
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WCHAR szEnc[MAX_STRING_LEN];
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WCHAR szMsg[ARRAY_SIZE(szMsgFormat) + MAX_PATH + ARRAY_SIZE(szEnc)];
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WCHAR szCaption[MAX_STRING_LEN];
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LoadStringW(Globals.hInstance, STRING_LOSS_OF_UNICODE_CHARACTERS,
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szMsgFormat, ARRAY_SIZE(szMsgFormat));
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load_encoding_name(ENCODING_ANSI, szEnc, ARRAY_SIZE(szEnc));
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wnsprintfW(szMsg, ARRAY_SIZE(szMsg), szMsgFormat, szFileName, szEnc);
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LoadStringW(Globals.hInstance, STRING_NOTEPAD, szCaption,
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ARRAY_SIZE(szCaption));
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return MessageBoxW(Globals.hMainWnd, szMsg, szCaption,
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MB_OKCANCEL|MB_ICONEXCLAMATION);
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}
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/**
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/**
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* Returns:
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* Returns:
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* TRUE - if file exists
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* TRUE - if file exists
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@ -158,8 +175,30 @@ BOOL FileExists(LPCWSTR szFilename)
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return (hFile != INVALID_HANDLE_VALUE);
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return (hFile != INVALID_HANDLE_VALUE);
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}
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}
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static inline BOOL is_conversion_to_ansi_lossy(LPCWSTR textW, int lenW)
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{
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BOOL ret = FALSE;
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WideCharToMultiByte(CP_ACP, WC_NO_BEST_FIT_CHARS, textW, lenW, NULL, 0,
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NULL, &ret);
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return ret;
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}
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static VOID DoSaveFile(VOID)
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typedef enum
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{
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SAVED_OK,
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SAVE_FAILED,
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SHOW_SAVEAS_DIALOG
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} SAVE_STATUS;
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/* szFileName is the filename to save under; enc is the encoding to use.
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*
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* If the function succeeds, it returns SAVED_OK.
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* If the function fails, it returns SAVE_FAILED.
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* If Unicode data could be lost due to conversion to a non-Unicode character
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* set, a warning is displayed. The user can continue (and the function carries
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* on), or cancel (and the function returns SHOW_SAVEAS_DIALOG).
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*/
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static SAVE_STATUS DoSaveFile(LPCWSTR szFileName, ENCODING enc)
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{
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{
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int lenW;
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int lenW;
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WCHAR* textW;
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WCHAR* textW;
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@ -174,12 +213,12 @@ static VOID DoSaveFile(VOID)
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if (!textW)
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if (!textW)
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{
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{
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ShowLastError();
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ShowLastError();
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return;
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return SAVE_FAILED;
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}
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}
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textW[0] = (WCHAR) 0xfeff;
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textW[0] = (WCHAR) 0xfeff;
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lenW = GetWindowTextW(Globals.hEdit, textW+1, lenW) + 1;
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lenW = GetWindowTextW(Globals.hEdit, textW+1, lenW) + 1;
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switch (Globals.encFile)
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switch (enc)
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{
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{
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case ENCODING_UTF16BE:
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case ENCODING_UTF16BE:
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byteswap_wide_string(textW, lenW);
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byteswap_wide_string(textW, lenW);
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@ -197,46 +236,54 @@ static VOID DoSaveFile(VOID)
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{
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{
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ShowLastError();
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ShowLastError();
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HeapFree(GetProcessHeap(), 0, textW);
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HeapFree(GetProcessHeap(), 0, textW);
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return;
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return SAVE_FAILED;
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}
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}
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WideCharToMultiByte(CP_UTF8, 0, textW, lenW, pBytes, size, NULL, NULL);
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WideCharToMultiByte(CP_UTF8, 0, textW, lenW, pBytes, size, NULL, NULL);
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HeapFree(GetProcessHeap(), 0, textW);
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HeapFree(GetProcessHeap(), 0, textW);
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break;
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break;
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default:
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default:
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if (is_conversion_to_ansi_lossy(textW+1, lenW-1)
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&& AlertUnicodeCharactersLost(szFileName) == IDCANCEL)
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{
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HeapFree(GetProcessHeap(), 0, textW);
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return SHOW_SAVEAS_DIALOG;
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}
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size = WideCharToMultiByte(CP_ACP, 0, textW+1, lenW-1, NULL, 0, NULL, NULL);
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size = WideCharToMultiByte(CP_ACP, 0, textW+1, lenW-1, NULL, 0, NULL, NULL);
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pBytes = HeapAlloc(GetProcessHeap(), 0, size);
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pBytes = HeapAlloc(GetProcessHeap(), 0, size);
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if (!pBytes)
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if (!pBytes)
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{
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{
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ShowLastError();
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ShowLastError();
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HeapFree(GetProcessHeap(), 0, textW);
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HeapFree(GetProcessHeap(), 0, textW);
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return;
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return SAVE_FAILED;
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}
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}
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WideCharToMultiByte(CP_ACP, 0, textW+1, lenW-1, pBytes, size, NULL, NULL);
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WideCharToMultiByte(CP_ACP, 0, textW+1, lenW-1, pBytes, size, NULL, NULL);
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HeapFree(GetProcessHeap(), 0, textW);
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HeapFree(GetProcessHeap(), 0, textW);
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break;
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break;
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}
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}
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hFile = CreateFileW(Globals.szFileName, GENERIC_WRITE, FILE_SHARE_WRITE,
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hFile = CreateFileW(szFileName, GENERIC_WRITE, FILE_SHARE_WRITE,
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NULL, OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
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NULL, OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
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if(hFile == INVALID_HANDLE_VALUE)
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if(hFile == INVALID_HANDLE_VALUE)
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{
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{
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ShowLastError();
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ShowLastError();
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HeapFree(GetProcessHeap(), 0, pBytes);
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HeapFree(GetProcessHeap(), 0, pBytes);
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return;
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return SAVE_FAILED;
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}
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}
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if (!WriteFile(hFile, pBytes, size, &dwNumWrite, NULL))
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if (!WriteFile(hFile, pBytes, size, &dwNumWrite, NULL))
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{
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{
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ShowLastError();
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ShowLastError();
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CloseHandle(hFile);
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CloseHandle(hFile);
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HeapFree(GetProcessHeap(), 0, pBytes);
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HeapFree(GetProcessHeap(), 0, pBytes);
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return;
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return SAVE_FAILED;
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}
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}
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SetEndOfFile(hFile);
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SetEndOfFile(hFile);
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CloseHandle(hFile);
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CloseHandle(hFile);
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HeapFree(GetProcessHeap(), 0, pBytes);
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HeapFree(GetProcessHeap(), 0, pBytes);
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SendMessageW(Globals.hEdit, EM_SETMODIFY, FALSE, 0);
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SendMessageW(Globals.hEdit, EM_SETMODIFY, FALSE, 0);
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return SAVED_OK;
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}
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}
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/**
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/**
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@ -570,14 +617,20 @@ VOID DIALOG_FileOpen(VOID)
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DoOpenFile(openfilename.lpstrFile, Globals.encOfnCombo);
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DoOpenFile(openfilename.lpstrFile, Globals.encOfnCombo);
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}
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}
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/* Return FALSE to cancel close */
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BOOL DIALOG_FileSave(VOID)
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BOOL DIALOG_FileSave(VOID)
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{
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{
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if (Globals.szFileName[0] == '\0')
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if (Globals.szFileName[0] == '\0')
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return DIALOG_FileSaveAs();
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return DIALOG_FileSaveAs();
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else
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else
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DoSaveFile();
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{
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return TRUE;
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switch (DoSaveFile(Globals.szFileName, Globals.encFile))
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{
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case SAVED_OK: return TRUE;
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case SHOW_SAVEAS_DIALOG: return DIALOG_FileSaveAs();
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default: return FALSE;
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}
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}
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}
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}
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BOOL DIALOG_FileSaveAs(VOID)
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BOOL DIALOG_FileSaveAs(VOID)
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@ -611,13 +664,23 @@ BOOL DIALOG_FileSaveAs(VOID)
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Globals.encOfnCombo = Globals.encFile;
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Globals.encOfnCombo = Globals.encFile;
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Globals.bOfnIsOpenDialog = FALSE;
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Globals.bOfnIsOpenDialog = FALSE;
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if (GetSaveFileNameW(&saveas)) {
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retry:
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if (!GetSaveFileNameW(&saveas))
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return FALSE;
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switch (DoSaveFile(szPath, Globals.encOfnCombo))
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{
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case SAVED_OK:
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SetFileNameAndEncoding(szPath, Globals.encOfnCombo);
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SetFileNameAndEncoding(szPath, Globals.encOfnCombo);
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UpdateWindowCaption();
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UpdateWindowCaption();
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DoSaveFile();
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return TRUE;
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return TRUE;
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}
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case SHOW_SAVEAS_DIALOG:
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goto retry;
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default:
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return FALSE;
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return FALSE;
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}
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}
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}
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typedef struct {
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typedef struct {
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@ -88,6 +88,8 @@
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#define STRING_UNICODE_LE 0x180
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#define STRING_UNICODE_LE 0x180
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#define STRING_UNICODE_BE 0x181
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#define STRING_UNICODE_BE 0x181
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#define STRING_LOSS_OF_UNICODE_CHARACTERS 0x182
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/* Open/Save As dialog template */
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/* Open/Save As dialog template */
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#define IDD_OFN_TEMPLATE 0x190
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#define IDD_OFN_TEMPLATE 0x190
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#define IDC_OFN_ENCCOMBO 0x191
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#define IDC_OFN_ENCCOMBO 0x191
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