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// UserInputUtils.cpp
#include "StdAfx.h"
#include "../../../Common/StdInStream.h"
#include "../../../Common/StringConvert.h"
#include "UserInputUtils.h"
static const char kYes = 'y';
static const char kNo = 'n';
static const char kYesAll = 'a';
static const char kNoAll = 's';
static const char kAutoRenameAll = 'u';
static const char kQuit = 'q';
static const char * const kFirstQuestionMessage = "? ";
static const char * const kHelpQuestionMessage =
"(Y)es / (N)o / (A)lways / (S)kip all / A(u)to rename all / (Q)uit? ";
// return true if pressed Quite;
NUserAnswerMode::EEnum ScanUserYesNoAllQuit(CStdOutStream *outStream)
{
if (outStream)
*outStream << kFirstQuestionMessage;
for (;;)
{
if (outStream)
{
*outStream << kHelpQuestionMessage;
outStream->Flush();
}
AString scannedString;
if (!g_StdIn.ScanAStringUntilNewLine(scannedString))
return NUserAnswerMode::kError;
if (g_StdIn.Error())
return NUserAnswerMode::kError;
scannedString.Trim();
if (scannedString.IsEmpty() && g_StdIn.Eof())
return NUserAnswerMode::kEof;
if (scannedString.Len() == 1)
switch (::MyCharLower_Ascii(scannedString[0]))
{
case kYes: return NUserAnswerMode::kYes;
case kNo: return NUserAnswerMode::kNo;
case kYesAll: return NUserAnswerMode::kYesAll;
case kNoAll: return NUserAnswerMode::kNoAll;
case kAutoRenameAll: return NUserAnswerMode::kAutoRenameAll;
case kQuit: return NUserAnswerMode::kQuit;
default: break;
}
}
}
#ifdef _WIN32
#ifndef UNDER_CE
#define MY_DISABLE_ECHO
#endif
#endif
static bool GetPassword(CStdOutStream *outStream, UString &psw)
{
if (outStream)
{
*outStream << "\nEnter password"
#ifdef MY_DISABLE_ECHO
" (will not be echoed)"
#endif
":";
outStream->Flush();
}
#ifdef MY_DISABLE_ECHO
const HANDLE console = GetStdHandle(STD_INPUT_HANDLE);
/*
GetStdHandle() returns
INVALID_HANDLE_VALUE: If the function fails.
NULL : If an application does not have associated standard handles,
such as a service running on an interactive desktop,
and has not redirected them. */
bool wasChanged = false;
DWORD mode = 0;
if (console != INVALID_HANDLE_VALUE && console != NULL)
if (GetConsoleMode(console, &mode))
wasChanged = (SetConsoleMode(console, mode & ~(DWORD)ENABLE_ECHO_INPUT) != 0);
const bool res = g_StdIn.ScanUStringUntilNewLine(psw);
if (wasChanged)
SetConsoleMode(console, mode);
#else
const bool res = g_StdIn.ScanUStringUntilNewLine(psw);
#endif
if (outStream)
{
*outStream << endl;
outStream->Flush();
}
return res;
}
HRESULT GetPassword_HRESULT(CStdOutStream *outStream, UString &psw)
{
if (!GetPassword(outStream, psw))
return E_INVALIDARG;
if (g_StdIn.Error())
return E_FAIL;
if (g_StdIn.Eof() && psw.IsEmpty())
return E_ABORT;
return S_OK;
}
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