1 // UserInputUtils.cpp 2 3 #include "StdAfx.h" 4 5 #include "../../../Common/StdInStream.h" 6 #include "../../../Common/StringConvert.h" 7 8 #include "UserInputUtils.h" 9 10 static const char kYes = 'y'; 11 static const char kNo = 'n'; 12 static const char kYesAll = 'a'; 13 static const char kNoAll = 's'; 14 static const char kAutoRenameAll = 'u'; 15 static const char kQuit = 'q'; 16 17 static const char * const kFirstQuestionMessage = "? "; 18 static const char * const kHelpQuestionMessage = 19 "(Y)es / (N)o / (A)lways / (S)kip all / A(u)to rename all / (Q)uit? "; 20 21 // return true if pressed Quite; 22 ScanUserYesNoAllQuit(CStdOutStream * outStream)23NUserAnswerMode::EEnum ScanUserYesNoAllQuit(CStdOutStream *outStream) 24 { 25 if (outStream) 26 *outStream << kFirstQuestionMessage; 27 for (;;) 28 { 29 if (outStream) 30 { 31 *outStream << kHelpQuestionMessage; 32 outStream->Flush(); 33 } 34 AString scannedString; 35 if (!g_StdIn.ScanAStringUntilNewLine(scannedString)) 36 return NUserAnswerMode::kError; 37 if (g_StdIn.Error()) 38 return NUserAnswerMode::kError; 39 scannedString.Trim(); 40 if (scannedString.IsEmpty() && g_StdIn.Eof()) 41 return NUserAnswerMode::kEof; 42 43 if (scannedString.Len() == 1) 44 switch (::MyCharLower_Ascii(scannedString[0])) 45 { 46 case kYes: return NUserAnswerMode::kYes; 47 case kNo: return NUserAnswerMode::kNo; 48 case kYesAll: return NUserAnswerMode::kYesAll; 49 case kNoAll: return NUserAnswerMode::kNoAll; 50 case kAutoRenameAll: return NUserAnswerMode::kAutoRenameAll; 51 case kQuit: return NUserAnswerMode::kQuit; 52 } 53 } 54 } 55 56 #ifdef _WIN32 57 #ifndef UNDER_CE 58 #define MY_DISABLE_ECHO 59 #endif 60 #endif 61 GetPassword(CStdOutStream * outStream,UString & psw)62static bool GetPassword(CStdOutStream *outStream, UString &psw) 63 { 64 if (outStream) 65 { 66 *outStream << "\nEnter password" 67 #ifdef MY_DISABLE_ECHO 68 " (will not be echoed)" 69 #endif 70 ":"; 71 outStream->Flush(); 72 } 73 74 #ifdef MY_DISABLE_ECHO 75 76 HANDLE console = GetStdHandle(STD_INPUT_HANDLE); 77 bool wasChanged = false; 78 DWORD mode = 0; 79 if (console != INVALID_HANDLE_VALUE && console != 0) 80 if (GetConsoleMode(console, &mode)) 81 wasChanged = (SetConsoleMode(console, mode & ~ENABLE_ECHO_INPUT) != 0); 82 bool res = g_StdIn.ScanUStringUntilNewLine(psw); 83 if (wasChanged) 84 SetConsoleMode(console, mode); 85 86 #else 87 88 bool res = g_StdIn.ScanUStringUntilNewLine(psw); 89 90 #endif 91 92 if (outStream) 93 { 94 *outStream << endl; 95 outStream->Flush(); 96 } 97 98 return res; 99 } 100 GetPassword_HRESULT(CStdOutStream * outStream,UString & psw)101HRESULT GetPassword_HRESULT(CStdOutStream *outStream, UString &psw) 102 { 103 if (!GetPassword(outStream, psw)) 104 return E_INVALIDARG; 105 if (g_StdIn.Error()) 106 return E_FAIL; 107 if (g_StdIn.Eof() && psw.IsEmpty()) 108 return E_ABORT; 109 return S_OK; 110 } 111