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reactos/subsystems/win32/win32k/ntuser/input.c
Jérôme Gardou 4170ce0625 sync with trunk r47346 
svn path=/branches/reactos-yarotows/; revision=47347
2010-05-25 10:27:42 +00:00

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/*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS kernel
* PURPOSE: Window classes
* FILE: subsys/win32k/ntuser/class.c
* PROGRAMER: Casper S. Hornstrup (chorns@users.sourceforge.net)
* REVISION HISTORY:
* 06-06-2001 CSH Created
*/
/* INCLUDES ******************************************************************/
#include <win32k.h>
#include <ntddkbd.h>
#define NDEBUG
#include <debug.h>
extern BYTE gQueueKeyStateTable[];
extern NTSTATUS Win32kInitWin32Thread(PETHREAD Thread);
/* GLOBALS *******************************************************************/
PTHREADINFO ptiRawInput;
PKTIMER MasterTimer = NULL;
PATTACHINFO gpai = NULL;
static HANDLE MouseDeviceHandle;
static HANDLE MouseThreadHandle;
static CLIENT_ID MouseThreadId;
static HANDLE KeyboardThreadHandle;
static CLIENT_ID KeyboardThreadId;
static HANDLE KeyboardDeviceHandle;
static HANDLE RawInputThreadHandle;
static CLIENT_ID RawInputThreadId;
static KEVENT InputThreadsStart;
static BOOLEAN InputThreadsRunning = FALSE;
static BYTE TrackSysKey = 0; /* determine whether ALT key up will cause a WM_SYSKEYUP
or a WM_KEYUP message */
/* FUNCTIONS *****************************************************************/
DWORD IntLastInputTick(BOOL LastInputTickSetGet);
#define ClearMouseInput(mi) \
mi.dx = 0; \
mi.dy = 0; \
mi.mouseData = 0; \
mi.dwFlags = 0;
#define SendMouseEvent(mi) \
if(mi.dx != 0 || mi.dy != 0) \
mi.dwFlags |= MOUSEEVENTF_MOVE; \
if(mi.dwFlags) \
IntMouseInput(&mi); \
ClearMouseInput(mi);
DWORD IntLastInputTick(BOOL LastInputTickSetGet)
{
static DWORD LastInputTick = 0;
if (LastInputTickSetGet == TRUE)
{
LARGE_INTEGER TickCount;
KeQueryTickCount(&TickCount);
LastInputTick = TickCount.u.LowPart * (KeQueryTimeIncrement() / 10000);
}
return LastInputTick;
}
BOOL
APIENTRY
NtUserGetLastInputInfo(PLASTINPUTINFO plii)
{
BOOL ret = TRUE;
UserEnterShared();
_SEH2_TRY
{
if (ProbeForReadUint(&plii->cbSize) != sizeof(LASTINPUTINFO))
{
SetLastWin32Error(ERROR_INVALID_PARAMETER);
ret = FALSE;
_SEH2_LEAVE;
}
ProbeForWrite(plii, sizeof(LASTINPUTINFO), sizeof(DWORD));
plii->dwTime = IntLastInputTick(FALSE);
}
_SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
{
SetLastNtError(_SEH2_GetExceptionCode());
ret = FALSE;
}
_SEH2_END;
UserLeave();
return ret;
}
VOID FASTCALL
ProcessMouseInputData(PMOUSE_INPUT_DATA Data, ULONG InputCount)
{
PMOUSE_INPUT_DATA mid;
MOUSEINPUT mi;
ULONG i;
ClearMouseInput(mi);
mi.time = 0;
mi.dwExtraInfo = 0;
for(i = 0; i < InputCount; i++)
{
mid = (Data + i);
mi.dx += mid->LastX;
mi.dy += mid->LastY;
/* Check if the mouse move is absolute */
if (mid->Flags == MOUSE_MOVE_ABSOLUTE)
{
/* Set flag to convert to screen location */
mi.dwFlags |= MOUSEEVENTF_ABSOLUTE;
}
if(mid->ButtonFlags)
{
if(mid->ButtonFlags & MOUSE_LEFT_BUTTON_DOWN)
{
mi.dwFlags |= MOUSEEVENTF_LEFTDOWN;
SendMouseEvent(mi);
}
if(mid->ButtonFlags & MOUSE_LEFT_BUTTON_UP)
{
mi.dwFlags |= MOUSEEVENTF_LEFTUP;
SendMouseEvent(mi);
}
if(mid->ButtonFlags & MOUSE_MIDDLE_BUTTON_DOWN)
{
mi.dwFlags |= MOUSEEVENTF_MIDDLEDOWN;
SendMouseEvent(mi);
}
if(mid->ButtonFlags & MOUSE_MIDDLE_BUTTON_UP)
{
mi.dwFlags |= MOUSEEVENTF_MIDDLEUP;
SendMouseEvent(mi);
}
if(mid->ButtonFlags & MOUSE_RIGHT_BUTTON_DOWN)
{
mi.dwFlags |= MOUSEEVENTF_RIGHTDOWN;
SendMouseEvent(mi);
}
if(mid->ButtonFlags & MOUSE_RIGHT_BUTTON_UP)
{
mi.dwFlags |= MOUSEEVENTF_RIGHTUP;
SendMouseEvent(mi);
}
if(mid->ButtonFlags & MOUSE_BUTTON_4_DOWN)
{
mi.mouseData |= XBUTTON1;
mi.dwFlags |= MOUSEEVENTF_XDOWN;
SendMouseEvent(mi);
}
if(mid->ButtonFlags & MOUSE_BUTTON_4_UP)
{
mi.mouseData |= XBUTTON1;
mi.dwFlags |= MOUSEEVENTF_XUP;
SendMouseEvent(mi);
}
if(mid->ButtonFlags & MOUSE_BUTTON_5_DOWN)
{
mi.mouseData |= XBUTTON2;
mi.dwFlags |= MOUSEEVENTF_XDOWN;
SendMouseEvent(mi);
}
if(mid->ButtonFlags & MOUSE_BUTTON_5_UP)
{
mi.mouseData |= XBUTTON2;
mi.dwFlags |= MOUSEEVENTF_XUP;
SendMouseEvent(mi);
}
if(mid->ButtonFlags & MOUSE_WHEEL)
{
mi.mouseData = mid->ButtonData;
mi.dwFlags |= MOUSEEVENTF_WHEEL;
SendMouseEvent(mi);
}
}
}
SendMouseEvent(mi);
}
VOID APIENTRY
MouseThreadMain(PVOID StartContext)
{
UNICODE_STRING MouseDeviceName = RTL_CONSTANT_STRING(L"\\Device\\PointerClass0");
OBJECT_ATTRIBUTES MouseObjectAttributes;
IO_STATUS_BLOCK Iosb;
NTSTATUS Status;
MOUSE_ATTRIBUTES MouseAttr;
Status = Win32kInitWin32Thread(PsGetCurrentThread());
if (!NT_SUCCESS(Status))
{
DPRINT1("Win32K: Failed making keyboard thread a win32 thread.\n");
return; //(Status);
}
KeSetPriorityThread(&PsGetCurrentThread()->Tcb,
LOW_REALTIME_PRIORITY + 3);
InitializeObjectAttributes(&MouseObjectAttributes,
&MouseDeviceName,
0,
NULL,
NULL);
do
{
LARGE_INTEGER DueTime;
KEVENT Event;
DueTime.QuadPart = (LONGLONG)(-10000000);
KeInitializeEvent(&Event, NotificationEvent, FALSE);
Status = KeWaitForSingleObject(&Event, Executive, KernelMode, FALSE, &DueTime);
Status = NtOpenFile(&MouseDeviceHandle,
FILE_ALL_ACCESS,
&MouseObjectAttributes,
&Iosb,
0,
FILE_SYNCHRONOUS_IO_ALERT);
} while (!NT_SUCCESS(Status));
KeSetPriorityThread(&PsGetCurrentThread()->Tcb,
LOW_REALTIME_PRIORITY + 3);
for(;;)
{
/*
* Wait to start input.
*/
DPRINT("Mouse Input Thread Waiting for start event\n");
Status = KeWaitForSingleObject(&InputThreadsStart,
0,
KernelMode,
TRUE,
NULL);
DPRINT("Mouse Input Thread Starting...\n");
/*FIXME: Does mouse attributes need to be used for anything */
Status = NtDeviceIoControlFile(MouseDeviceHandle,
NULL,
NULL,
NULL,
&Iosb,
IOCTL_MOUSE_QUERY_ATTRIBUTES,
&MouseAttr, sizeof(MOUSE_ATTRIBUTES),
NULL, 0);
if(!NT_SUCCESS(Status))
{
DPRINT("Failed to get mouse attributes\n");
}
/*
* Receive and process mouse input.
*/
while(InputThreadsRunning)
{
MOUSE_INPUT_DATA MouseInput;
Status = NtReadFile(MouseDeviceHandle,
NULL,
NULL,
NULL,
&Iosb,
&MouseInput,
sizeof(MOUSE_INPUT_DATA),
NULL,
NULL);
if(Status == STATUS_ALERTED && !InputThreadsRunning)
{
break;
}
if(Status == STATUS_PENDING)
{
NtWaitForSingleObject(MouseDeviceHandle, FALSE, NULL);
Status = Iosb.Status;
}
if(!NT_SUCCESS(Status))
{
DPRINT1("Win32K: Failed to read from mouse.\n");
return; //(Status);
}
DPRINT("MouseEvent\n");
IntLastInputTick(TRUE);
UserEnterExclusive();
ProcessMouseInputData(&MouseInput, Iosb.Information / sizeof(MOUSE_INPUT_DATA));
UserLeave();
}
DPRINT("Mouse Input Thread Stopped...\n");
}
}
/* Returns a value that indicates if the key is a modifier key, and
* which one.
*/
static UINT APIENTRY
IntKeyboardGetModifiers(KEYBOARD_INPUT_DATA *InputData)
{
if (InputData->Flags & KEY_E1)
return 0;
if (!(InputData->Flags & KEY_E0))
{
switch (InputData->MakeCode)
{
case 0x2a: /* left shift */
case 0x36: /* right shift */
return MOD_SHIFT;
case 0x1d: /* left control */
return MOD_CONTROL;
case 0x38: /* left alt */
return MOD_ALT;
default:
return 0;
}
}
else
{
switch (InputData->MakeCode)
{
case 0x1d: /* right control */
return MOD_CONTROL;
case 0x38: /* right alt */
return MOD_ALT;
case 0x5b: /* left gui (windows) */
case 0x5c: /* right gui (windows) */
return MOD_WIN;
default:
return 0;
}
}
}
/* Asks the keyboard driver to send a small table that shows which
* lights should connect with which scancodes
*/
static NTSTATUS APIENTRY
IntKeyboardGetIndicatorTrans(HANDLE KeyboardDeviceHandle,
PKEYBOARD_INDICATOR_TRANSLATION *IndicatorTrans)
{
NTSTATUS Status;
DWORD Size = 0;
IO_STATUS_BLOCK Block;
PKEYBOARD_INDICATOR_TRANSLATION Ret;
Size = sizeof(KEYBOARD_INDICATOR_TRANSLATION);
Ret = ExAllocatePoolWithTag(PagedPool,
Size,
TAG_KEYBOARD);
while (Ret)
{
Status = NtDeviceIoControlFile(KeyboardDeviceHandle,
NULL,
NULL,
NULL,
&Block,
IOCTL_KEYBOARD_QUERY_INDICATOR_TRANSLATION,
NULL, 0,
Ret, Size);
if (Status != STATUS_BUFFER_TOO_SMALL)
break;
ExFreePoolWithTag(Ret, TAG_KEYBOARD);
Size += sizeof(KEYBOARD_INDICATOR_TRANSLATION);
Ret = ExAllocatePoolWithTag(PagedPool,
Size,
TAG_KEYBOARD);
}
if (!Ret)
return STATUS_INSUFFICIENT_RESOURCES;
if (Status != STATUS_SUCCESS)
{
ExFreePoolWithTag(Ret, TAG_KEYBOARD);
return Status;
}
*IndicatorTrans = Ret;
return Status;
}
/* Sends the keyboard commands to turn on/off the lights.
*/
static NTSTATUS APIENTRY
IntKeyboardUpdateLeds(HANDLE KeyboardDeviceHandle,
PKEYBOARD_INPUT_DATA KeyInput,
PKEYBOARD_INDICATOR_TRANSLATION IndicatorTrans)
{
NTSTATUS Status;
UINT Count;
static KEYBOARD_INDICATOR_PARAMETERS Indicators;
IO_STATUS_BLOCK Block;
if (!IndicatorTrans)
return STATUS_NOT_SUPPORTED;
if (KeyInput->Flags & (KEY_E0 | KEY_E1 | KEY_BREAK))
return STATUS_SUCCESS;
for (Count = 0; Count < IndicatorTrans->NumberOfIndicatorKeys; Count++)
{
if (KeyInput->MakeCode == IndicatorTrans->IndicatorList[Count].MakeCode)
{
Indicators.LedFlags ^=
IndicatorTrans->IndicatorList[Count].IndicatorFlags;
/* Update the lights on the hardware */
Status = NtDeviceIoControlFile(KeyboardDeviceHandle,
NULL,
NULL,
NULL,
&Block,
IOCTL_KEYBOARD_SET_INDICATORS,
&Indicators, sizeof(Indicators),
NULL, 0);
return Status;
}
}
return STATUS_SUCCESS;
}
static VOID APIENTRY
IntKeyboardSendWinKeyMsg()
{
PWINDOW_OBJECT Window;
MSG Mesg;
if (!(Window = UserGetWindowObject(InputWindowStation->ShellWindow)))
{
DPRINT1("Couldn't find window to send Windows key message!\n");
return;
}
Mesg.hwnd = InputWindowStation->ShellWindow;
Mesg.message = WM_SYSCOMMAND;
Mesg.wParam = SC_TASKLIST;
Mesg.lParam = 0;
/* The QS_HOTKEY is just a guess */
MsqPostMessage(Window->pti->MessageQueue, &Mesg, FALSE, QS_HOTKEY);
}
static VOID APIENTRY
co_IntKeyboardSendAltKeyMsg()
{
co_MsqPostKeyboardMessage(WM_SYSCOMMAND,SC_KEYMENU,0);
}
static VOID APIENTRY
KeyboardThreadMain(PVOID StartContext)
{
UNICODE_STRING KeyboardDeviceName = RTL_CONSTANT_STRING(L"\\Device\\KeyboardClass0");
OBJECT_ATTRIBUTES KeyboardObjectAttributes;
IO_STATUS_BLOCK Iosb;
NTSTATUS Status;
MSG msg;
PUSER_MESSAGE_QUEUE FocusQueue;
struct _ETHREAD *FocusThread;
PKEYBOARD_INDICATOR_TRANSLATION IndicatorTrans = NULL;
UINT ModifierState = 0;
USHORT LastMakeCode = 0;
USHORT LastFlags = 0;
UINT RepeatCount = 0;
InitializeObjectAttributes(&KeyboardObjectAttributes,
&KeyboardDeviceName,
0,
NULL,
NULL);
do
{
LARGE_INTEGER DueTime;
KEVENT Event;
DueTime.QuadPart = (LONGLONG)(-10000000);
KeInitializeEvent(&Event, NotificationEvent, FALSE);
Status = KeWaitForSingleObject(&Event, Executive, KernelMode, FALSE, &DueTime);
Status = NtOpenFile(&KeyboardDeviceHandle,
FILE_ALL_ACCESS,
&KeyboardObjectAttributes,
&Iosb,
0,
FILE_SYNCHRONOUS_IO_ALERT);
} while (!NT_SUCCESS(Status));
/* Not sure if converting this thread to a win32 thread is such
a great idea. Since we're posting keyboard messages to the focus
window message queue, we'll be (indirectly) doing sendmessage
stuff from this thread (for WH_KEYBOARD_LL processing), which
means we need our own message queue. If keyboard messages were
instead queued to the system message queue, the thread removing
the message from the system message queue would be responsible
for WH_KEYBOARD_LL processing and we wouldn't need this thread
to be a win32 thread. */
Status = Win32kInitWin32Thread(PsGetCurrentThread());
if (!NT_SUCCESS(Status))
{
DPRINT1("Win32K: Failed making keyboard thread a win32 thread.\n");
return; //(Status);
}
KeSetPriorityThread(&PsGetCurrentThread()->Tcb,
LOW_REALTIME_PRIORITY + 3);
IntKeyboardGetIndicatorTrans(KeyboardDeviceHandle,
&IndicatorTrans);
for (;;)
{
/*
* Wait to start input.
*/
DPRINT( "Keyboard Input Thread Waiting for start event\n" );
Status = KeWaitForSingleObject(&InputThreadsStart,
0,
KernelMode,
TRUE,
NULL);
DPRINT( "Keyboard Input Thread Starting...\n" );
/*
* Receive and process keyboard input.
*/
while (InputThreadsRunning)
{
BOOLEAN NumKeys = 1;
BOOLEAN bLeftAlt;
KEYBOARD_INPUT_DATA KeyInput;
KEYBOARD_INPUT_DATA NextKeyInput;
LPARAM lParam = 0;
UINT fsModifiers, fsNextModifiers;
struct _ETHREAD *Thread;
HWND hWnd;
int id;
DPRINT("KeyInput @ %08x\n", &KeyInput);
Status = NtReadFile (KeyboardDeviceHandle,
NULL,
NULL,
NULL,
&Iosb,
&KeyInput,
sizeof(KEYBOARD_INPUT_DATA),
NULL,
NULL);
if(Status == STATUS_ALERTED && !InputThreadsRunning)
{
break;
}
if(Status == STATUS_PENDING)
{
NtWaitForSingleObject(KeyboardDeviceHandle, FALSE, NULL);
Status = Iosb.Status;
}
if(!NT_SUCCESS(Status))
{
DPRINT1("Win32K: Failed to read from mouse.\n");
return; //(Status);
}
DPRINT("KeyRaw: %s %04x\n",
(KeyInput.Flags & KEY_BREAK) ? "up" : "down",
KeyInput.MakeCode );
if (Status == STATUS_ALERTED && !InputThreadsRunning)
break;
if (!NT_SUCCESS(Status))
{
DPRINT1("Win32K: Failed to read from keyboard.\n");
return; //(Status);
}
/* Set LastInputTick */
IntLastInputTick(TRUE);
/* Update modifier state */
fsModifiers = IntKeyboardGetModifiers(&KeyInput);
if (fsModifiers)
{
if (KeyInput.Flags & KEY_BREAK)
{
ModifierState &= ~fsModifiers;
if(fsModifiers == MOD_ALT)
{
if(KeyInput.Flags & KEY_E0)
{
gQueueKeyStateTable[VK_RMENU] = 0;
}
else
{
gQueueKeyStateTable[VK_LMENU] = 0;
}
if (gQueueKeyStateTable[VK_RMENU] == 0 &&
gQueueKeyStateTable[VK_LMENU] == 0)
{
gQueueKeyStateTable[VK_MENU] = 0;
}
}
}
else
{
ModifierState |= fsModifiers;
if (ModifierState == fsModifiers &&
(fsModifiers == MOD_ALT || fsModifiers == MOD_WIN))
{
/* First send out special notifications
* (For alt, the message that turns on accelerator
* display, not sure what for win. Both TODO though.)
*/
bLeftAlt = FALSE;
if(fsModifiers == MOD_ALT)
{
if(KeyInput.Flags & KEY_E0)
{
gQueueKeyStateTable[VK_RMENU] = 0x80;
}
else
{
gQueueKeyStateTable[VK_LMENU] = 0x80;
bLeftAlt = TRUE;
}
gQueueKeyStateTable[VK_MENU] = 0x80;
}
/* Read the next key before sending this one */
do
{
Status = NtReadFile (KeyboardDeviceHandle,
NULL,
NULL,
NULL,
&Iosb,
&NextKeyInput,
sizeof(KEYBOARD_INPUT_DATA),
NULL,
NULL);
DPRINT("KeyRaw: %s %04x\n",
(NextKeyInput.Flags & KEY_BREAK) ? "up":"down",
NextKeyInput.MakeCode );
if (Status == STATUS_ALERTED && !InputThreadsRunning)
goto KeyboardEscape;
}
while ((!(NextKeyInput.Flags & KEY_BREAK)) &&
NextKeyInput.MakeCode == KeyInput.MakeCode);
/* ^ Ignore repeats, they'll be KEY_MAKE and the same
* code. I'm not caring about the counting, not sure
* if that matters. I think not.
*/
/* If the ModifierState is now empty again, send a
* special notification and eat both keypresses
*/
fsNextModifiers = IntKeyboardGetModifiers(&NextKeyInput);
if (fsNextModifiers)
ModifierState ^= fsNextModifiers;
if (ModifierState == 0)
{
if (fsModifiers == MOD_WIN)
IntKeyboardSendWinKeyMsg();
else if (fsModifiers == MOD_ALT)
{
gQueueKeyStateTable[VK_MENU] = 0;
if(bLeftAlt)
{
gQueueKeyStateTable[VK_LMENU] = 0;
}
else
{
gQueueKeyStateTable[VK_RMENU] = 0;
}
co_IntKeyboardSendAltKeyMsg();
}
continue;
}
NumKeys = 2;
}
}
}
for (;NumKeys;memcpy(&KeyInput, &NextKeyInput, sizeof(KeyInput)),
NumKeys--)
{
PKBL keyboardLayout = NULL;
lParam = 0;
IntKeyboardUpdateLeds(KeyboardDeviceHandle,
&KeyInput,
IndicatorTrans);
/* While we are working, we set up lParam. The format is:
* 0-15: The number of times this key has autorepeated
* 16-23: The keyboard scancode
* 24: Set if it's and extended key (I assume KEY_E0 | KEY_E1)
* Note that E1 is only used for PAUSE (E1-1D-45) and
* E0-45 happens not to be anything.
* 29: Alt is pressed ('Context code')
* 30: Previous state, if the key was down before this message
* This is a cheap way to ignore autorepeat keys
* 31: 1 if the key is being pressed
*/
/* If it's a KEY_MAKE (which is 0, so test using !KEY_BREAK)
* and it's the same key as the last one, increase the repeat
* count.
*/
if (!(KeyInput.Flags & KEY_BREAK))
{
if (((KeyInput.Flags & (KEY_E0 | KEY_E1)) == LastFlags) &&
(KeyInput.MakeCode == LastMakeCode))
{
RepeatCount++;
lParam |= (1 << 30);
}
else
{
RepeatCount = 1;
LastFlags = KeyInput.Flags & (KEY_E0 | KEY_E1);
LastMakeCode = KeyInput.MakeCode;
}
}
else
{
LastFlags = 0;
LastMakeCode = 0; /* Should never match */
lParam |= (1 << 30) | (1 << 31);
}
lParam |= RepeatCount;
lParam |= (KeyInput.MakeCode & 0xff) << 16;
if (KeyInput.Flags & KEY_E0)
lParam |= (1 << 24);
if (ModifierState & MOD_ALT)
{
lParam |= (1 << 29);
if (!(KeyInput.Flags & KEY_BREAK))
msg.message = WM_SYSKEYDOWN;
else
msg.message = WM_SYSKEYUP;
}
else
{
if (!(KeyInput.Flags & KEY_BREAK))
msg.message = WM_KEYDOWN;
else
msg.message = WM_KEYUP;
}
/* Find the target thread whose locale is in effect */
FocusQueue = IntGetFocusMessageQueue();
if (FocusQueue)
{
msg.hwnd = FocusQueue->FocusWindow;
FocusThread = FocusQueue->Thread;
if (FocusThread && FocusThread->Tcb.Win32Thread)
{
keyboardLayout = ((PTHREADINFO)FocusThread->Tcb.Win32Thread)->KeyboardLayout;
}
}
if (!keyboardLayout)
{
keyboardLayout = W32kGetDefaultKeyLayout();
}
msg.lParam = lParam;
/* This function uses lParam to fill wParam according to the
* keyboard layout in use.
*/
W32kKeyProcessMessage(&msg,
keyboardLayout->KBTables,
KeyInput.Flags & KEY_E0 ? 0xE0 :
(KeyInput.Flags & KEY_E1 ? 0xE1 : 0));
if (GetHotKey(ModifierState,
msg.wParam,
&Thread,
&hWnd,
&id))
{
if (!(KeyInput.Flags & KEY_BREAK))
{
DPRINT("Hot key pressed (hWnd %lx, id %d)\n", hWnd, id);
MsqPostHotKeyMessage (Thread,
hWnd,
(WPARAM)id,
MAKELPARAM((WORD)ModifierState,
(WORD)msg.wParam));
}
continue; /* Eat key up motion too */
}
if (!FocusQueue)
{
/* There is no focused window to receive a keyboard message */
continue;
}
/*
* Post a keyboard message.
*/
co_MsqPostKeyboardMessage(msg.message,msg.wParam,msg.lParam);
}
}
KeyboardEscape:
DPRINT( "KeyboardInput Thread Stopped...\n" );
}
}
static PVOID Objects[2];
/*
Raw Input Thread.
Since this relies on InputThreadsStart, just fake it.
*/
static VOID APIENTRY
RawInputThreadMain(PVOID StartContext)
{
NTSTATUS Status;
LARGE_INTEGER DueTime;
DueTime.QuadPart = (LONGLONG)(-10000000);
do
{
KEVENT Event;
KeInitializeEvent(&Event, NotificationEvent, FALSE);
Status = KeWaitForSingleObject(&Event, Executive, KernelMode, FALSE, &DueTime);
} while (!NT_SUCCESS(Status));
Objects[0] = &InputThreadsStart;
Objects[1] = MasterTimer;
// This thread requires win32k!
Status = Win32kInitWin32Thread(PsGetCurrentThread());
if (!NT_SUCCESS(Status))
{
DPRINT1("Win32K: Failed making Raw Input thread a win32 thread.\n");
return; //(Status);
}
ptiRawInput = PsGetCurrentThreadWin32Thread();
DPRINT("\nRaw Input Thread 0x%x \n", ptiRawInput);
KeSetPriorityThread(&PsGetCurrentThread()->Tcb,
LOW_REALTIME_PRIORITY + 3);
UserEnterExclusive();
StartTheTimers();
UserLeave();
//
// ATM, we just have one job to handle, merge the other two later.
//
for(;;)
{
DPRINT( "Raw Input Thread Waiting for start event\n" );
Status = KeWaitForMultipleObjects( 2,
Objects,
WaitAll, //WaitAny,
WrUserRequest,
KernelMode,
TRUE,
NULL,
NULL);
DPRINT( "Raw Input Thread Starting...\n" );
ProcessTimers();
}
DPRINT1("Raw Input Thread Exit!\n");
}
NTSTATUS FASTCALL
InitInputImpl(VOID)
{
NTSTATUS Status;
KeInitializeEvent(&InputThreadsStart, NotificationEvent, FALSE);
MasterTimer = ExAllocatePoolWithTag(NonPagedPool, sizeof(KTIMER), TAG_INPUT);
if (!MasterTimer)
{
DPRINT1("Win32K: Failed making Raw Input thread a win32 thread.\n");
ASSERT(FALSE);
return STATUS_UNSUCCESSFUL;
}
KeInitializeTimer(MasterTimer);
/* Initialize the default keyboard layout */
if(!UserInitDefaultKeyboardLayout())
{
DPRINT1("Failed to initialize default keyboard layout!\n");
}
Status = PsCreateSystemThread(&RawInputThreadHandle,
THREAD_ALL_ACCESS,
NULL,
NULL,
&RawInputThreadId,
RawInputThreadMain,
NULL);
if (!NT_SUCCESS(Status))
{
DPRINT1("Win32K: Failed to create raw thread.\n");
}
Status = PsCreateSystemThread(&KeyboardThreadHandle,
THREAD_ALL_ACCESS,
NULL,
NULL,
&KeyboardThreadId,
KeyboardThreadMain,
NULL);
if (!NT_SUCCESS(Status))
{
DPRINT1("Win32K: Failed to create keyboard thread.\n");
}
Status = PsCreateSystemThread(&MouseThreadHandle,
THREAD_ALL_ACCESS,
NULL,
NULL,
&MouseThreadId,
MouseThreadMain,
NULL);
if (!NT_SUCCESS(Status))
{
DPRINT1("Win32K: Failed to create mouse thread.\n");
}
InputThreadsRunning = TRUE;
KeSetEvent(&InputThreadsStart, IO_NO_INCREMENT, FALSE);
return STATUS_SUCCESS;
}
NTSTATUS FASTCALL
CleanupInputImp(VOID)
{
return(STATUS_SUCCESS);
}
BOOL
APIENTRY
NtUserDragDetect(
HWND hWnd,
POINT pt) // Just like the User call.
{
UNIMPLEMENTED
return 0;
}
BOOL FASTCALL
IntBlockInput(PTHREADINFO W32Thread, BOOL BlockIt)
{
PTHREADINFO OldBlock;
ASSERT(W32Thread);
if(!W32Thread->rpdesk || ((W32Thread->TIF_flags & TIF_INCLEANUP) && BlockIt))
{
/*
* fail blocking if exiting the thread
*/
return FALSE;
}
/*
* FIXME - check access rights of the window station
* e.g. services running in the service window station cannot block input
*/
if(!ThreadHasInputAccess(W32Thread) ||
!IntIsActiveDesktop(W32Thread->rpdesk))
{
SetLastWin32Error(ERROR_ACCESS_DENIED);
return FALSE;
}
ASSERT(W32Thread->rpdesk);
OldBlock = W32Thread->rpdesk->BlockInputThread;
if(OldBlock)
{
if(OldBlock != W32Thread)
{
SetLastWin32Error(ERROR_ACCESS_DENIED);
return FALSE;
}
W32Thread->rpdesk->BlockInputThread = (BlockIt ? W32Thread : NULL);
return OldBlock == NULL;
}
W32Thread->rpdesk->BlockInputThread = (BlockIt ? W32Thread : NULL);
return OldBlock == NULL;
}
BOOL
APIENTRY
NtUserBlockInput(
BOOL BlockIt)
{
DECLARE_RETURN(BOOLEAN);
DPRINT("Enter NtUserBlockInput\n");
UserEnterExclusive();
RETURN( IntBlockInput(PsGetCurrentThreadWin32Thread(), BlockIt));
CLEANUP:
DPRINT("Leave NtUserBlockInput, ret=%i\n",_ret_);
UserLeave();
END_CLEANUP;
}
BOOL FASTCALL
IntMouseInput(MOUSEINPUT *mi)
{
const UINT SwapBtnMsg[2][2] =
{
{WM_LBUTTONDOWN, WM_RBUTTONDOWN},
{WM_LBUTTONUP, WM_RBUTTONUP}
};
const WPARAM SwapBtn[2] =
{
MK_LBUTTON, MK_RBUTTON
};
POINT MousePos;
PSYSTEM_CURSORINFO CurInfo;
BOOL SwapButtons;
MSG Msg;
ASSERT(mi);
CurInfo = IntGetSysCursorInfo();
if(!mi->time)
{
LARGE_INTEGER LargeTickCount;
KeQueryTickCount(&LargeTickCount);
mi->time = MsqCalculateMessageTime(&LargeTickCount);
}
SwapButtons = gspv.bMouseBtnSwap;
MousePos = gpsi->ptCursor;
if(mi->dwFlags & MOUSEEVENTF_MOVE)
{
if(mi->dwFlags & MOUSEEVENTF_ABSOLUTE)
{
MousePos.x = mi->dx * UserGetSystemMetrics(SM_CXVIRTUALSCREEN) >> 16;
MousePos.y = mi->dy * UserGetSystemMetrics(SM_CYVIRTUALSCREEN) >> 16;
}
else
{
MousePos.x += mi->dx;
MousePos.y += mi->dy;
}
}
/*
* Insert the messages into the system queue
*/
Msg.wParam = 0;
Msg.lParam = MAKELPARAM(MousePos.x, MousePos.y);
Msg.pt = MousePos;
if (gQueueKeyStateTable[VK_SHIFT] & 0xc0)
{
Msg.wParam |= MK_SHIFT;
}
if (gQueueKeyStateTable[VK_CONTROL] & 0xc0)
{
Msg.wParam |= MK_CONTROL;
}
if(mi->dwFlags & MOUSEEVENTF_MOVE)
{
UserSetCursorPos(MousePos.x, MousePos.y, TRUE);
}
if(mi->dwFlags & MOUSEEVENTF_LEFTDOWN)
{
gQueueKeyStateTable[VK_LBUTTON] |= 0xc0;
Msg.message = SwapBtnMsg[0][SwapButtons];
CurInfo->ButtonsDown |= SwapBtn[SwapButtons];
Msg.wParam |= CurInfo->ButtonsDown;
MsqInsertSystemMessage(&Msg);
}
else if(mi->dwFlags & MOUSEEVENTF_LEFTUP)
{
gQueueKeyStateTable[VK_LBUTTON] &= ~0x80;
Msg.message = SwapBtnMsg[1][SwapButtons];
CurInfo->ButtonsDown &= ~SwapBtn[SwapButtons];
Msg.wParam |= CurInfo->ButtonsDown;
MsqInsertSystemMessage(&Msg);
}
if(mi->dwFlags & MOUSEEVENTF_MIDDLEDOWN)
{
gQueueKeyStateTable[VK_MBUTTON] |= 0xc0;
Msg.message = WM_MBUTTONDOWN;
CurInfo->ButtonsDown |= MK_MBUTTON;
Msg.wParam |= CurInfo->ButtonsDown;
MsqInsertSystemMessage(&Msg);
}
else if(mi->dwFlags & MOUSEEVENTF_MIDDLEUP)
{
gQueueKeyStateTable[VK_MBUTTON] &= ~0x80;
Msg.message = WM_MBUTTONUP;
CurInfo->ButtonsDown &= ~MK_MBUTTON;
Msg.wParam |= CurInfo->ButtonsDown;
MsqInsertSystemMessage(&Msg);
}
if(mi->dwFlags & MOUSEEVENTF_RIGHTDOWN)
{
gQueueKeyStateTable[VK_RBUTTON] |= 0xc0;
Msg.message = SwapBtnMsg[0][!SwapButtons];
CurInfo->ButtonsDown |= SwapBtn[!SwapButtons];
Msg.wParam |= CurInfo->ButtonsDown;
MsqInsertSystemMessage(&Msg);
}
else if(mi->dwFlags & MOUSEEVENTF_RIGHTUP)
{
gQueueKeyStateTable[VK_RBUTTON] &= ~0x80;
Msg.message = SwapBtnMsg[1][!SwapButtons];
CurInfo->ButtonsDown &= ~SwapBtn[!SwapButtons];
Msg.wParam |= CurInfo->ButtonsDown;
MsqInsertSystemMessage(&Msg);
}
if((mi->dwFlags & (MOUSEEVENTF_XDOWN | MOUSEEVENTF_XUP)) &&
(mi->dwFlags & MOUSEEVENTF_WHEEL))
{
/* fail because both types of events use the mouseData field */
return FALSE;
}
if(mi->dwFlags & MOUSEEVENTF_XDOWN)
{
Msg.message = WM_XBUTTONDOWN;
if(mi->mouseData & XBUTTON1)
{
gQueueKeyStateTable[VK_XBUTTON1] |= 0xc0;
CurInfo->ButtonsDown |= MK_XBUTTON1;
Msg.wParam = MAKEWPARAM(CurInfo->ButtonsDown, XBUTTON1);
MsqInsertSystemMessage(&Msg);
}
if(mi->mouseData & XBUTTON2)
{
gQueueKeyStateTable[VK_XBUTTON2] |= 0xc0;
CurInfo->ButtonsDown |= MK_XBUTTON2;
Msg.wParam = MAKEWPARAM(CurInfo->ButtonsDown, XBUTTON2);
MsqInsertSystemMessage(&Msg);
}
}
else if(mi->dwFlags & MOUSEEVENTF_XUP)
{
Msg.message = WM_XBUTTONUP;
if(mi->mouseData & XBUTTON1)
{
gQueueKeyStateTable[VK_XBUTTON1] &= ~0x80;
CurInfo->ButtonsDown &= ~MK_XBUTTON1;
Msg.wParam = MAKEWPARAM(CurInfo->ButtonsDown, XBUTTON1);
MsqInsertSystemMessage(&Msg);
}
if(mi->mouseData & XBUTTON2)
{
gQueueKeyStateTable[VK_XBUTTON2] &= ~0x80;
CurInfo->ButtonsDown &= ~MK_XBUTTON2;
Msg.wParam = MAKEWPARAM(CurInfo->ButtonsDown, XBUTTON2);
MsqInsertSystemMessage(&Msg);
}
}
if(mi->dwFlags & MOUSEEVENTF_WHEEL)
{
Msg.message = WM_MOUSEWHEEL;
Msg.wParam = MAKEWPARAM(CurInfo->ButtonsDown, mi->mouseData);
MsqInsertSystemMessage(&Msg);
}
return TRUE;
}
BOOL FASTCALL
IntKeyboardInput(KEYBDINPUT *ki)
{
PUSER_MESSAGE_QUEUE FocusMessageQueue;
PTHREADINFO pti;
MSG Msg;
LARGE_INTEGER LargeTickCount;
KBDLLHOOKSTRUCT KbdHookData;
WORD flags, wVkStripped, wVkL, wVkR, wVk = ki->wVk, vk_hook = ki->wVk;
BOOLEAN Entered = FALSE;
Msg.lParam = 0;
// Condition may arise when calling MsqPostMessage and waiting for an event.
if (!UserIsEntered())
{
// Fixme: Not sure ATM if this thread is locked.
UserEnterExclusive();
Entered = TRUE;
}
wVk = LOBYTE(wVk);
Msg.wParam = wVk;
flags = LOBYTE(ki->wScan);
if (ki->dwFlags & KEYEVENTF_EXTENDEDKEY) flags |= KF_EXTENDED;
/* FIXME: set KF_DLGMODE and KF_MENUMODE when needed */
/* strip left/right for menu, control, shift */
switch (wVk)
{
case VK_MENU:
case VK_LMENU:
case VK_RMENU:
wVk = (ki->dwFlags & KEYEVENTF_EXTENDEDKEY) ? VK_RMENU : VK_LMENU;
wVkStripped = VK_MENU;
wVkL = VK_LMENU;
wVkR = VK_RMENU;
break;
case VK_CONTROL:
case VK_LCONTROL:
case VK_RCONTROL:
wVk = (ki->dwFlags & KEYEVENTF_EXTENDEDKEY) ? VK_RCONTROL : VK_LCONTROL;
wVkStripped = VK_CONTROL;
wVkL = VK_LCONTROL;
wVkR = VK_RCONTROL;
break;
case VK_SHIFT:
case VK_LSHIFT:
case VK_RSHIFT:
wVk = (ki->dwFlags & KEYEVENTF_EXTENDEDKEY) ? VK_RSHIFT : VK_LSHIFT;
wVkStripped = VK_SHIFT;
wVkL = VK_LSHIFT;
wVkR = VK_RSHIFT;
break;
default:
wVkStripped = wVkL = wVkR = wVk;
}
if (ki->dwFlags & KEYEVENTF_KEYUP)
{
Msg.message = WM_KEYUP;
if ((gQueueKeyStateTable[VK_MENU] & 0x80) &&
((wVkStripped == VK_MENU) || (wVkStripped == VK_CONTROL)
|| !(gQueueKeyStateTable[VK_CONTROL] & 0x80)))
{
if( TrackSysKey == VK_MENU || /* <ALT>-down/<ALT>-up sequence */
(wVkStripped != VK_MENU)) /* <ALT>-down...<something else>-up */
Msg.message = WM_SYSKEYUP;
TrackSysKey = 0;
}
flags |= KF_REPEAT | KF_UP;
}
else
{
Msg.message = WM_KEYDOWN;
if ((gQueueKeyStateTable[VK_MENU] & 0x80 || wVkStripped == VK_MENU) &&
!(gQueueKeyStateTable[VK_CONTROL] & 0x80 || wVkStripped == VK_CONTROL))
{
Msg.message = WM_SYSKEYDOWN;
TrackSysKey = wVkStripped;
}
if (!(ki->dwFlags & KEYEVENTF_UNICODE) && gQueueKeyStateTable[wVk] & 0x80) flags |= KF_REPEAT;
}
if (ki->dwFlags & KEYEVENTF_UNICODE)
{
vk_hook = Msg.wParam = wVk = VK_PACKET;
Msg.lParam = MAKELPARAM(1 /* repeat count */, ki->wScan);
}
FocusMessageQueue = IntGetFocusMessageQueue();
Msg.hwnd = 0;
if (FocusMessageQueue && (FocusMessageQueue->FocusWindow != (HWND)0))
Msg.hwnd = FocusMessageQueue->FocusWindow;
if (!ki->time)
{
KeQueryTickCount(&LargeTickCount);
Msg.time = MsqCalculateMessageTime(&LargeTickCount);
}
else
Msg.time = ki->time;
/* All messages have to contain the cursor point. */
pti = PsGetCurrentThreadWin32Thread();
Msg.pt = gpsi->ptCursor;
KbdHookData.vkCode = vk_hook;
KbdHookData.scanCode = ki->wScan;
KbdHookData.flags = flags >> 8;
KbdHookData.time = Msg.time;
KbdHookData.dwExtraInfo = ki->dwExtraInfo;
if (co_HOOK_CallHooks(WH_KEYBOARD_LL, HC_ACTION, Msg.message, (LPARAM) &KbdHookData))
{
DPRINT("Kbd msg %d wParam %d lParam 0x%08x dropped by WH_KEYBOARD_LL hook\n",
Msg.message, vk_hook, Msg.lParam);
if (Entered) UserLeave();
return FALSE;
}
if (!(ki->dwFlags & KEYEVENTF_UNICODE))
{
if (ki->dwFlags & KEYEVENTF_KEYUP)
{
gQueueKeyStateTable[wVk] &= ~0x80;
gQueueKeyStateTable[wVkStripped] = gQueueKeyStateTable[wVkL] | gQueueKeyStateTable[wVkR];
}
else
{
if (!(gQueueKeyStateTable[wVk] & 0x80)) gQueueKeyStateTable[wVk] ^= 0x01;
gQueueKeyStateTable[wVk] |= 0xc0;
gQueueKeyStateTable[wVkStripped] = gQueueKeyStateTable[wVkL] | gQueueKeyStateTable[wVkR];
}
if (gQueueKeyStateTable[VK_MENU] & 0x80) flags |= KF_ALTDOWN;
if (wVkStripped == VK_SHIFT) flags &= ~KF_EXTENDED;
Msg.lParam = MAKELPARAM(1 /* repeat count */, flags);
}
if (FocusMessageQueue == NULL)
{
DPRINT("No focus message queue\n");
if (Entered) UserLeave();
return FALSE;
}
if (FocusMessageQueue->FocusWindow != (HWND)0)
{
Msg.hwnd = FocusMessageQueue->FocusWindow;
DPRINT("Msg.hwnd = %x\n", Msg.hwnd);
FocusMessageQueue->Desktop->pDeskInfo->LastInputWasKbd = TRUE;
Msg.pt = gpsi->ptCursor;
MsqPostMessage(FocusMessageQueue, &Msg, FALSE, QS_KEY);
}
else
{
DPRINT("Invalid focus window handle\n");
}
if (Entered) UserLeave();
return TRUE;
}
BOOL FASTCALL
UserAttachThreadInput( PTHREADINFO pti, PTHREADINFO ptiTo, BOOL fAttach)
{
PATTACHINFO pai;
/* Can not be the same thread.*/
if (pti == ptiTo) return FALSE;
/* Do not attach to system threads or between different desktops. */
if ( pti->TIF_flags & TIF_DONTATTACHQUEUE ||
ptiTo->TIF_flags & TIF_DONTATTACHQUEUE ||
pti->rpdesk != ptiTo->rpdesk )
return FALSE;
/* If Attach set, allocate and link. */
if ( fAttach )
{
pai = ExAllocatePoolWithTag(PagedPool, sizeof(ATTACHINFO), TAG_ATTACHINFO);
if ( !pai ) return FALSE;
pai->paiNext = gpai;
pai->pti1 = pti;
pai->pti2 = ptiTo;
gpai = pai;
}
else /* If clear, unlink and free it. */
{
PATTACHINFO paiprev = NULL;
if ( !gpai ) return FALSE;
pai = gpai;
/* Search list and free if found or return false. */
do
{
if ( pai->pti2 == ptiTo && pai->pti1 == pti ) break;
paiprev = pai;
pai = pai->paiNext;
} while (pai);
if ( !pai ) return FALSE;
if (paiprev) paiprev->paiNext = pai->paiNext;
ExFreePoolWithTag(pai, TAG_ATTACHINFO);
}
return TRUE;
}
UINT
APIENTRY
NtUserSendInput(
UINT nInputs,
LPINPUT pInput,
INT cbSize)
{
PTHREADINFO W32Thread;
UINT cnt;
DECLARE_RETURN(UINT);
DPRINT("Enter NtUserSendInput\n");
UserEnterExclusive();
W32Thread = PsGetCurrentThreadWin32Thread();
ASSERT(W32Thread);
if(!W32Thread->rpdesk)
{
RETURN( 0);
}
if(!nInputs || !pInput || (cbSize != sizeof(INPUT)))
{
SetLastWin32Error(ERROR_INVALID_PARAMETER);
RETURN( 0);
}
/*
* FIXME - check access rights of the window station
* e.g. services running in the service window station cannot block input
*/
if(!ThreadHasInputAccess(W32Thread) ||
!IntIsActiveDesktop(W32Thread->rpdesk))
{
SetLastWin32Error(ERROR_ACCESS_DENIED);
RETURN( 0);
}
cnt = 0;
while(nInputs--)
{
INPUT SafeInput;
NTSTATUS Status;
Status = MmCopyFromCaller(&SafeInput, pInput++, sizeof(INPUT));
if(!NT_SUCCESS(Status))
{
SetLastNtError(Status);
RETURN( cnt);
}
switch(SafeInput.type)
{
case INPUT_MOUSE:
if(IntMouseInput(&SafeInput.mi))
{
cnt++;
}
break;
case INPUT_KEYBOARD:
if(IntKeyboardInput(&SafeInput.ki))
{
cnt++;
}
break;
case INPUT_HARDWARE:
break;
#ifndef NDEBUG
default:
DPRINT1("SendInput(): Invalid input type: 0x%x\n", SafeInput.type);
break;
#endif
}
}
RETURN( cnt);
CLEANUP:
DPRINT("Leave NtUserSendInput, ret=%i\n",_ret_);
UserLeave();
END_CLEANUP;
}
/* EOF */
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