static NTSTATUS NTAPI
ConSrvTermWriteStream(IN OUT PTERMINAL This,
PTEXTMODE_SCREEN_BUFFER Buff,
PWCHAR Buffer,
DWORD Length,
BOOL Attrib)
{
PFRONTEND FrontEnd = This->Context;
return ConioWriteConsole(FrontEnd,
Buff,
Buffer,
Length,
Attrib);
}
static VOID
LineInputEdit(PCSRSS_CONSOLE Console, UINT NumToDelete, UINT NumToInsert, WCHAR *Insertion)
{
UINT Pos = Console->LinePos;
UINT NewSize = Console->LineSize - NumToDelete + NumToInsert;
INT i;
/* Make sure there's always enough room for ending \r\n */
if (NewSize + 2 > Console->LineMaxSize)
return;
memmove(&Console->LineBuffer[Pos + NumToInsert],
&Console->LineBuffer[Pos + NumToDelete],
(Console->LineSize - (Pos + NumToDelete)) * sizeof(WCHAR));
memcpy(&Console->LineBuffer[Pos], Insertion, NumToInsert * sizeof(WCHAR));
if (Console->Mode & ENABLE_ECHO_INPUT)
{
for (i = Pos; i < NewSize; i++)
{
CHAR AsciiChar;
WideCharToMultiByte(Console->OutputCodePage, 0,
&Console->LineBuffer[i], 1,
&AsciiChar, 1, NULL, NULL);
ConioWriteConsole(Console, Console->ActiveBuffer, &AsciiChar, 1, TRUE);
}
for (; i < Console->LineSize; i++)
{
ConioWriteConsole(Console, Console->ActiveBuffer, " ", 1, TRUE);
}
Console->LinePos = i;
}
Console->LineSize = NewSize;
LineInputSetPos(Console, Pos + NumToInsert);
}
static VOID
LineInputEdit(PCONSOLE Console, UINT NumToDelete, UINT NumToInsert, WCHAR *Insertion)
{
PTEXTMODE_SCREEN_BUFFER ActiveBuffer;
UINT Pos = Console->LinePos;
UINT NewSize = Console->LineSize - NumToDelete + NumToInsert;
UINT i;
if (GetType(Console->ActiveBuffer) != TEXTMODE_BUFFER) return;
ActiveBuffer = (PTEXTMODE_SCREEN_BUFFER)Console->ActiveBuffer;
/* Make sure there's always enough room for ending \r\n */
if (NewSize + 2 > Console->LineMaxSize)
return;
memmove(&Console->LineBuffer[Pos + NumToInsert],
&Console->LineBuffer[Pos + NumToDelete],
(Console->LineSize - (Pos + NumToDelete)) * sizeof(WCHAR));
memcpy(&Console->LineBuffer[Pos], Insertion, NumToInsert * sizeof(WCHAR));
if (Console->InputBuffer.Mode & ENABLE_ECHO_INPUT)
{
for (i = Pos; i < NewSize; i++)
{
ConioWriteConsole(Console, ActiveBuffer, &Console->LineBuffer[i], 1, TRUE);
}
for (; i < Console->LineSize; i++)
{
ConioWriteConsole(Console, ActiveBuffer, L" ", 1, TRUE);
}
Console->LinePos = i;
}
Console->LineSize = NewSize;
LineInputSetPos(Console, Pos + NumToInsert);
}
VOID FASTCALL
LineInputKeyDown(PCSRSS_CONSOLE Console, KEY_EVENT_RECORD *KeyEvent)
{
UINT Pos = Console->LinePos;
PHISTORY_BUFFER Hist;
UNICODE_STRING Entry;
INT HistPos;
switch (KeyEvent->wVirtualKeyCode)
{
case VK_ESCAPE:
/* Clear entire line */
LineInputSetPos(Console, 0);
LineInputEdit(Console, Console->LineSize, 0, NULL);
return;
case VK_HOME:
/* Move to start of line. With ctrl, erase everything left of cursor */
LineInputSetPos(Console, 0);
if (KeyEvent->dwControlKeyState & (LEFT_CTRL_PRESSED | RIGHT_CTRL_PRESSED))
LineInputEdit(Console, Pos, 0, NULL);
return;
case VK_END:
/* Move to end of line. With ctrl, erase everything right of cursor */
if (KeyEvent->dwControlKeyState & (LEFT_CTRL_PRESSED | RIGHT_CTRL_PRESSED))
LineInputEdit(Console, Console->LineSize - Pos, 0, NULL);
else
LineInputSetPos(Console, Console->LineSize);
return;
case VK_LEFT:
/* Move left. With ctrl, move to beginning of previous word */
if (KeyEvent->dwControlKeyState & (LEFT_CTRL_PRESSED | RIGHT_CTRL_PRESSED))
{
while (Pos > 0 && Console->LineBuffer[Pos - 1] == L' ') Pos--;
while (Pos > 0 && Console->LineBuffer[Pos - 1] != L' ') Pos--;
}
else
{
Pos -= (Pos > 0);
}
LineInputSetPos(Console, Pos);
return;
case VK_RIGHT:
case VK_F1:
/* Move right. With ctrl, move to beginning of next word */
if (KeyEvent->dwControlKeyState & (LEFT_CTRL_PRESSED | RIGHT_CTRL_PRESSED))
{
while (Pos < Console->LineSize && Console->LineBuffer[Pos] != L' ') Pos++;
while (Pos < Console->LineSize && Console->LineBuffer[Pos] == L' ') Pos++;
LineInputSetPos(Console, Pos);
return;
}
else
{
/* Recall one character (but don't overwrite current line) */
HistoryGetCurrentEntry(Console, &Entry);
if (Pos < Console->LineSize)
LineInputSetPos(Console, Pos + 1);
else if (Pos * sizeof(WCHAR) < Entry.Length)
LineInputEdit(Console, 0, 1, &Entry.Buffer[Pos]);
}
return;
case VK_INSERT:
/* Toggle between insert and overstrike */
Console->LineInsertToggle = !Console->LineInsertToggle;
ConioSetCursorInfo(Console, Console->ActiveBuffer);
return;
case VK_DELETE:
/* Remove character to right of cursor */
if (Pos != Console->LineSize)
LineInputEdit(Console, 1, 0, NULL);
return;
case VK_PRIOR:
/* Recall first history entry */
LineInputRecallHistory(Console, -((WORD)-1));
return;
case VK_NEXT:
/* Recall last history entry */
LineInputRecallHistory(Console, +((WORD)-1));
return;
case VK_UP:
case VK_F5:
/* Recall previous history entry. On first time, actually recall the
* current (usually last) entry; on subsequent times go back. */
LineInputRecallHistory(Console, Console->LineUpPressed ? -1 : 0);
Console->LineUpPressed = TRUE;
return;
case VK_DOWN:
/* Recall next history entry */
LineInputRecallHistory(Console, +1);
return;
case VK_F3:
/* Recall remainder of current history entry */
HistoryGetCurrentEntry(Console, &Entry);
if (Pos * sizeof(WCHAR) < Entry.Length)
{
UINT InsertSize = (Entry.Length / sizeof(WCHAR) - Pos);
UINT DeleteSize = min(Console->LineSize - Pos, InsertSize);
LineInputEdit(Console, DeleteSize, InsertSize, &Entry.Buffer[Pos]);
}
return;
case VK_F6:
/* Insert a ^Z character */
KeyEvent->uChar.UnicodeChar = 26;
break;
case VK_F7:
if (KeyEvent->dwControlKeyState & (LEFT_ALT_PRESSED | RIGHT_ALT_PRESSED))
HistoryDeleteBuffer(HistoryCurrentBuffer(Console));
return;
case VK_F8:
/* Search for history entries starting with input. */
if (!(Hist = HistoryCurrentBuffer(Console)) || Hist->NumEntries == 0)
return;
/* Like Up/F5, on first time start from current (usually last) entry,
* but on subsequent times start at previous entry. */
if (Console->LineUpPressed)
Hist->Position = (Hist->Position ? Hist->Position : Hist->NumEntries) - 1;
Console->LineUpPressed = TRUE;
Entry.Length = Console->LinePos * sizeof(WCHAR);
Entry.Buffer = Console->LineBuffer;
/* Keep going backwards, even wrapping around to the end,
* until we get back to starting point */
HistPos = Hist->Position;
do
{
if (RtlPrefixUnicodeString(&Entry, &Hist->Entries[HistPos], FALSE))
{
Hist->Position = HistPos;
LineInputEdit(Console, Console->LineSize - Pos,
Hist->Entries[HistPos].Length / sizeof(WCHAR) - Pos,
&Hist->Entries[HistPos].Buffer[Pos]);
/* Cursor stays where it was */
LineInputSetPos(Console, Pos);
return;
}
if (--HistPos < 0) HistPos += Hist->NumEntries;
} while (HistPos != Hist->Position);
return;
}
if (KeyEvent->uChar.UnicodeChar == L'\b' && Console->Mode & ENABLE_PROCESSED_INPUT)
{
/* backspace handling - if processed input enabled then we handle it here
* otherwise we treat it like a normal char. */
if (Pos > 0)
{
LineInputSetPos(Console, Pos - 1);
LineInputEdit(Console, 1, 0, NULL);
}
}
else if (KeyEvent->uChar.UnicodeChar == L'\r')
{
HistoryAddEntry(Console);
/* TODO: Expand aliases */
LineInputSetPos(Console, Console->LineSize);
Console->LineBuffer[Console->LineSize++] = L'\r';
if (Console->Mode & ENABLE_ECHO_INPUT)
ConioWriteConsole(Console, Console->ActiveBuffer, "\r", 1, TRUE);
/* Add \n if processed input. There should usually be room for it,
* but an exception to the rule exists: the buffer could have been
* pre-filled with LineMaxSize - 1 characters. */
if (Console->Mode & ENABLE_PROCESSED_INPUT &&
Console->LineSize < Console->LineMaxSize)
{
Console->LineBuffer[Console->LineSize++] = L'\n';
if (Console->Mode & ENABLE_ECHO_INPUT)
ConioWriteConsole(Console, Console->ActiveBuffer, "\n", 1, TRUE);
}
Console->LineComplete = TRUE;
Console->LinePos = 0;
}
else if (KeyEvent->uChar.UnicodeChar != L'\0')
{
if (KeyEvent->uChar.UnicodeChar < 0x20 &&
Console->LineWakeupMask & (1 << KeyEvent->uChar.UnicodeChar))
{
/* Control key client wants to handle itself (e.g. for tab completion) */
Console->LineBuffer[Console->LineSize++] = L' ';
Console->LineBuffer[Console->LinePos] = KeyEvent->uChar.UnicodeChar;
Console->LineComplete = TRUE;
Console->LinePos = 0;
}
else
{
/* Normal character */
BOOL Overstrike = Console->LineInsertToggle && Console->LinePos != Console->LineSize;
LineInputEdit(Console, Overstrike, 1, &KeyEvent->uChar.UnicodeChar);
}
}
}
NTSTATUS NTAPI
ConDrvWriteConsole(IN PCONSOLE Console,
IN PTEXTMODE_SCREEN_BUFFER ScreenBuffer,
IN BOOLEAN Unicode,
IN PVOID StringBuffer,
IN ULONG NumCharsToWrite,
OUT PULONG NumCharsWritten OPTIONAL)
{
NTSTATUS Status = STATUS_SUCCESS;
PWCHAR Buffer = NULL;
ULONG Written = 0;
ULONG Length;
if (Console == NULL || ScreenBuffer == NULL /* || StringBuffer == NULL */)
return STATUS_INVALID_PARAMETER;
/* Validity checks */
ASSERT(Console == ScreenBuffer->Header.Console);
ASSERT( (StringBuffer != NULL && NumCharsToWrite >= 0) ||
(StringBuffer == NULL && NumCharsToWrite == 0) );
// if (Console->PauseFlags & (PAUSED_FROM_KEYBOARD | PAUSED_FROM_SCROLLBAR | PAUSED_FROM_SELECTION))
if (Console->PauseFlags && Console->UnpauseEvent != NULL)
{
return STATUS_PENDING;
}
if (Unicode)
{
Buffer = StringBuffer;
}
else
{
Length = MultiByteToWideChar(Console->OutputCodePage, 0,
(PCHAR)StringBuffer,
NumCharsToWrite,
NULL, 0);
Buffer = RtlAllocateHeap(RtlGetProcessHeap(), 0, Length * sizeof(WCHAR));
if (Buffer)
{
MultiByteToWideChar(Console->OutputCodePage, 0,
(PCHAR)StringBuffer,
NumCharsToWrite,
(PWCHAR)Buffer, Length);
}
else
{
Status = STATUS_NO_MEMORY;
}
}
if (Buffer)
{
if (NT_SUCCESS(Status))
{
Status = ConioWriteConsole(Console,
ScreenBuffer,
Buffer,
NumCharsToWrite,
TRUE);
if (NT_SUCCESS(Status))
{
Written = NumCharsToWrite;
}
}
if (!Unicode) RtlFreeHeap(RtlGetProcessHeap(), 0, Buffer);
}
if (NumCharsWritten) *NumCharsWritten = Written;
return Status;
}
