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barrier/server/CMSWindowsPrimaryScreen.cpp

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#include "CMSWindowsPrimaryScreen.h"
#include "CMSWindowsClipboard.h"
#include "CServer.h"
#include "CPlatform.h"
#include "XScreen.h"
#include "XSynergy.h"
#include "CLog.h"
#include "CThread.h"
#include <assert.h>
#include <string.h>
//
// CMSWindowsPrimaryScreen
//
CMSWindowsPrimaryScreen::CMSWindowsPrimaryScreen() :
m_server(NULL),
m_threadID(0),
m_desk(NULL),
m_deskName(),
m_window(NULL),
m_active(false),
m_mark(0),
m_markReceived(0),
m_nextClipboardWindow(NULL),
m_clipboardOwner(NULL)
{
// load the hook library
m_hookLibrary = LoadLibrary("synrgyhk");
if (m_hookLibrary == NULL) {
log((CLOG_ERR "failed to load hook library"));
throw XScreenOpenFailure();
}
m_setZone = (SetZoneFunc)GetProcAddress(m_hookLibrary, "setZone");
m_setRelay = (SetRelayFunc)GetProcAddress(m_hookLibrary, "setRelay");
m_install = (InstallFunc)GetProcAddress(m_hookLibrary, "install");
m_uninstall = (UninstallFunc)GetProcAddress(m_hookLibrary, "uninstall");
if (m_setZone == NULL ||
m_setRelay == NULL ||
m_install == NULL ||
m_uninstall == NULL) {
log((CLOG_ERR "invalid hook library"));
FreeLibrary(m_hookLibrary);
throw XScreenOpenFailure();
}
// detect operating system
m_is95Family = CPlatform::isWindows95Family();
// make sure this thread has a message queue
MSG dummy;
PeekMessage(&dummy, NULL, WM_USER, WM_USER, PM_NOREMOVE);
}
CMSWindowsPrimaryScreen::~CMSWindowsPrimaryScreen()
{
assert(m_hookLibrary != NULL);
assert(m_window == NULL);
// done with hook library
FreeLibrary(m_hookLibrary);
}
void CMSWindowsPrimaryScreen::run()
{
// must call run() from same thread as open()
assert(m_threadID == GetCurrentThreadId());
// change our priority
CThread::getCurrentThread().setPriority(-3);
// poll input desktop to see if it changes (preTranslateMessage()
// handles WM_TIMER)
UINT timer = 0;
if (!m_is95Family) {
SetTimer(NULL, 0, 200, NULL);
}
// run event loop
log((CLOG_INFO "entering event loop"));
doRun();
log((CLOG_INFO "exiting event loop"));
// remove timer
if (!m_is95Family) {
KillTimer(NULL, timer);
}
}
void CMSWindowsPrimaryScreen::stop()
{
doStop();
}
void CMSWindowsPrimaryScreen::open(CServer* server)
{
assert(m_server == NULL);
assert(server != NULL);
// set the server
m_server = server;
// open the display
openDisplay();
// initialize marks
m_mark = 0;
m_markReceived = 0;
nextMark();
// send screen info
SInt32 w, h;
getScreenSize(&w, &h);
POINT pos;
GetCursorPos(&pos);
m_server->setInfo(w, h, getJumpZoneSize(), pos.x, pos.y);
// compute center pixel of screen
m_xCenter = w >> 1;
m_yCenter = h >> 1;
// get keyboard state
updateKeys();
// enter the screen
enterNoWarp();
}
void CMSWindowsPrimaryScreen::close()
{
assert(m_server != NULL);
// close the display
closeDisplay();
// done with server
m_server = NULL;
}
void CMSWindowsPrimaryScreen::enter(SInt32 x, SInt32 y)
{
log((CLOG_INFO "entering primary at %d,%d", x, y));
assert(m_active == true);
// enter the screen
enterNoWarp();
// warp to requested location
warpCursor(x, y);
}
bool CMSWindowsPrimaryScreen::leave()
{
log((CLOG_INFO "leaving primary"));
assert(m_active == false);
// all messages prior to now are invalid
nextMark();
// save active window, show ours, and grab mouse/keyboard
if (!onLeave()) {
return false;
}
// relay all mouse and keyboard events
m_setRelay();
// get state of keys as we leave
updateKeys();
// warp mouse to center of screen
warpCursor(m_xCenter, m_yCenter);
// ignore this many mouse motion events (not including the already
// queued events). on (at least) the win2k login desktop, one
// motion event is reported using a position from before the above
// warpCursor(). i don't know why it does that and other desktops
// don't have the same problem. anyway, simply ignoring that event
// works around it.
m_mouseMoveIgnore = 1;
// disable ctrl+alt+del, alt+tab, etc
if (m_is95Family) {
DWORD dummy = 0;
SystemParametersInfo(SPI_SETSCREENSAVERRUNNING, TRUE, &dummy, 0);
}
// discard messages until after the warp
nextMark();
// local client now active
m_active = true;
// if we think we own the clipboard but we don't then somebody
// grabbed the clipboard on this screen without us knowing.
// tell the server that this screen grabbed the clipboard.
//
// this works around bugs in the clipboard viewer chain.
// sometimes NT will simply never send WM_DRAWCLIPBOARD
// messages for no apparent reason and rebooting fixes the
// problem. since we don't want a broken clipboard until the
// next reboot we do this double check. clipboard ownership
// won't be reflected on other screens until we leave but at
// least the clipboard itself will work.
HWND clipboardOwner = GetClipboardOwner();
if (m_clipboardOwner != clipboardOwner) {
try {
m_clipboardOwner = clipboardOwner;
if (m_clipboardOwner != m_window) {
m_server->grabClipboard(kClipboardClipboard);
m_server->grabClipboard(kClipboardSelection);
}
}
catch (XBadClient&) {
// ignore
}
}
return true;
}
void CMSWindowsPrimaryScreen::onConfigure()
{
if ((m_is95Family || m_desk != NULL) && !m_active) {
SInt32 w, h;
getScreenSize(&w, &h);
m_setZone(m_server->getActivePrimarySides(),
w, h, getJumpZoneSize());
}
}
void CMSWindowsPrimaryScreen::warpCursor(SInt32 x, SInt32 y)
{
// set the cursor position without generating an event
SetCursorPos(x, y);
}
void CMSWindowsPrimaryScreen::setClipboard(
ClipboardID /*id*/, const IClipboard* src)
{
assert(m_window != NULL);
CMSWindowsClipboard dst(m_window);
CClipboard::copy(&dst, src);
}
void CMSWindowsPrimaryScreen::grabClipboard(
ClipboardID /*id*/)
{
assert(m_window != NULL);
CMSWindowsClipboard clipboard(m_window);
if (clipboard.open(0)) {
clipboard.close();
}
}
void CMSWindowsPrimaryScreen::getSize(
SInt32* width, SInt32* height) const
{
getScreenSize(width, height);
}
SInt32 CMSWindowsPrimaryScreen::getJumpZoneSize() const
{
return 1;
}
void CMSWindowsPrimaryScreen::getClipboard(
ClipboardID /*id*/, IClipboard* dst) const
{
assert(m_window != NULL);
CMSWindowsClipboard src(m_window);
CClipboard::copy(dst, &src);
}
KeyModifierMask CMSWindowsPrimaryScreen::getToggleMask() const
{
KeyModifierMask mask = 0;
if ((GetKeyState(VK_CAPITAL) & 0x01) != 0)
mask |= KeyModifierCapsLock;
if ((GetKeyState(VK_NUMLOCK) & 0x01) != 0)
mask |= KeyModifierNumLock;
if ((GetKeyState(VK_SCROLL) & 0x01) != 0)
mask |= KeyModifierScrollLock;
return mask;
}
bool CMSWindowsPrimaryScreen::isLockedToScreen() const
{
// check buttons
if (GetAsyncKeyState(VK_LBUTTON) < 0 ||
GetAsyncKeyState(VK_MBUTTON) < 0 ||
GetAsyncKeyState(VK_RBUTTON) < 0) {
return true;
}
// check keys
BYTE keys[256];
if (GetKeyboardState(keys)) {
for (unsigned int i = 0; i < sizeof(keys); ++i) {
if ((keys[i] & 0x80) != 0) {
return true;
}
}
}
// not locked
return false;
}
void CMSWindowsPrimaryScreen::onOpenDisplay()
{
assert(m_window == NULL);
assert(m_server != NULL);
// save thread id. we'll need to pass this to the hook library.
m_threadID = GetCurrentThreadId();
// get the input desktop and switch to it
if (m_is95Family) {
if (!openDesktop()) {
throw XScreenOpenFailure();
}
}
else {
if (!switchDesktop(openInputDesktop())) {
throw XScreenOpenFailure();
}
}
}
void CMSWindowsPrimaryScreen::onCloseDisplay()
{
// disconnect from desktop
if (m_is95Family) {
closeDesktop();
}
else {
switchDesktop(NULL);
}
// clear thread id
m_threadID = 0;
assert(m_window == NULL);
assert(m_desk == NULL);
}
bool CMSWindowsPrimaryScreen::onPreTranslate(MSG* msg)
{
// handle event
switch (msg->message) {
case SYNERGY_MSG_MARK:
m_markReceived = msg->wParam;
return true;
case SYNERGY_MSG_KEY:
// ignore message if posted prior to last mark change
if (m_markReceived == m_mark) {
KeyModifierMask mask;
const KeyID key = mapKey(msg->wParam, msg->lParam, &mask);
if (key != kKeyNone) {
if ((msg->lParam & 0x80000000) == 0) {
// key press
const SInt32 repeat = (SInt32)(msg->lParam & 0xffff);
if (repeat >= 2) {
log((CLOG_DEBUG1 "event: key repeat key=%d mask=0x%04x count=%d", key, mask, repeat));
m_server->onKeyRepeat(key, mask, repeat);
}
else {
log((CLOG_DEBUG1 "event: key press key=%d mask=0x%04x", key, mask));
m_server->onKeyDown(key, mask);
}
// update key state
updateKey(msg->wParam, true);
}
else {
// key release
log((CLOG_DEBUG1 "event: key release key=%d mask=0x%04x", key, mask));
m_server->onKeyUp(key, mask);
// update key state
updateKey(msg->wParam, false);
}
}
else {
log((CLOG_DEBUG2 "event: cannot map key wParam=%d lParam=0x%08x", msg->wParam, msg->lParam));
}
}
return true;
case SYNERGY_MSG_MOUSE_BUTTON:
// ignore message if posted prior to last mark change
if (m_markReceived == m_mark) {
const ButtonID button = mapButton(msg->wParam);
switch (msg->wParam) {
case WM_LBUTTONDOWN:
case WM_MBUTTONDOWN:
case WM_RBUTTONDOWN:
log((CLOG_DEBUG1 "event: button press button=%d", button));
if (button != kButtonNone) {
m_server->onMouseDown(button);
}
break;
case WM_LBUTTONUP:
case WM_MBUTTONUP:
case WM_RBUTTONUP:
log((CLOG_DEBUG1 "event: button release button=%d", button));
if (button != kButtonNone) {
m_server->onMouseUp(button);
}
break;
}
}
return true;
case SYNERGY_MSG_MOUSE_WHEEL:
// ignore message if posted prior to last mark change
if (m_markReceived == m_mark) {
log((CLOG_ERR "event: button wheel delta=%d %d", msg->wParam, msg->lParam));
m_server->onMouseWheel(msg->wParam);
}
return true;
case SYNERGY_MSG_MOUSE_MOVE:
// ignore message if posted prior to last mark change
if (m_markReceived == m_mark) {
SInt32 x = static_cast<SInt32>(msg->wParam);
SInt32 y = static_cast<SInt32>(msg->lParam);
if (!m_active) {
m_server->onMouseMovePrimary(x, y);
}
else {
// get mouse deltas
x -= m_xCenter;
y -= m_yCenter;
// ignore if the mouse didn't move or we're ignoring
// motion.
if (m_mouseMoveIgnore == 0) {
if (x != 0 && y != 0) {
// warp mouse back to center
warpCursor(m_xCenter, m_yCenter);
// send motion
m_server->onMouseMoveSecondary(x, y);
}
}
else {
// ignored one more motion event
--m_mouseMoveIgnore;
}
}
}
return true;
case WM_TIMER:
// if current desktop is not the input desktop then switch to it
if (!m_is95Family) {
HDESK desk = openInputDesktop();
if (desk != NULL) {
if (isCurrentDesktop(desk)) {
CloseDesktop(desk);
}
else {
switchDesktop(desk);
}
}
}
return true;
}
return false;
}
LRESULT CMSWindowsPrimaryScreen::onEvent(
HWND hwnd, UINT msg,
WPARAM wParam, LPARAM lParam)
{
switch (msg) {
case WM_QUERYENDSESSION:
if (m_is95Family) {
return TRUE;
}
break;
case WM_ENDSESSION:
if (m_is95Family) {
if (wParam == TRUE && lParam == 0) {
stop();
}
return 0;
}
break;
case WM_PAINT:
ValidateRect(hwnd, NULL);
return 0;
case WM_DRAWCLIPBOARD:
log((CLOG_DEBUG "clipboard was taken"));
// first pass it on
if (m_nextClipboardWindow != NULL) {
SendMessage(m_nextClipboardWindow, msg, wParam, lParam);
}
// now notify server that somebody changed the clipboard.
// skip that if we're the new owner.
try {
m_clipboardOwner = GetClipboardOwner();
if (m_clipboardOwner != m_window) {
m_server->grabClipboard(kClipboardClipboard);
m_server->grabClipboard(kClipboardSelection);
}
}
catch (XBadClient&) {
// ignore. this can happen if we receive this event
// before we've fully started up.
}
return 0;
case WM_CHANGECBCHAIN:
if (m_nextClipboardWindow == (HWND)wParam) {
m_nextClipboardWindow = (HWND)lParam;
}
else if (m_nextClipboardWindow != NULL) {
SendMessage(m_nextClipboardWindow, msg, wParam, lParam);
}
return 0;
case WM_DISPLAYCHANGE:
{
// screen resolution may have changed
SInt32 wOld, hOld;
getScreenSize(&wOld, &hOld);
SInt32 w, h;
updateScreenSize();
getScreenSize(&w, &h);
// do nothing if resolution hasn't changed
if (w != wOld || h != hOld) {
// recompute center pixel of screen
m_xCenter = w >> 1;
m_yCenter = h >> 1;
// warp mouse to center if active
if (m_active) {
warpCursor(m_xCenter, m_yCenter);
}
// tell hook about resize if not active
else {
onConfigure();
}
// send new screen info
POINT pos;
GetCursorPos(&pos);
m_server->setInfo(w, h, getJumpZoneSize(), pos.x, pos.y);
}
return 0;
}
}
return DefWindowProc(hwnd, msg, wParam, lParam);
}
void CMSWindowsPrimaryScreen::enterNoWarp()
{
// not active anymore
m_active = false;
// reset motion ignore count
m_mouseMoveIgnore = 0;
// enable ctrl+alt+del, alt+tab, etc
if (m_is95Family) {
DWORD dummy = 0;
SystemParametersInfo(SPI_SETSCREENSAVERRUNNING, FALSE, &dummy, 0);
}
// install jump zones
onConfigure();
// restore active window and hide our window
onEnter();
// all messages prior to now are invalid
nextMark();
}
void CMSWindowsPrimaryScreen::onEnter()
{
// restore the active window and hide our window. we can only set
// the active window for another thread if we first attach our input
// to that thread.
ReleaseCapture();
if (m_lastActiveWindow != NULL) {
DWORD myThread = GetCurrentThreadId();
if (AttachThreadInput(myThread, m_lastActiveThread, TRUE)) {
// FIXME -- shouldn't raise window if X-Mouse is enabled
// but i have no idea how to do that or check if enabled.
SetActiveWindow(m_lastActiveWindow);
AttachThreadInput(myThread, m_lastActiveThread, FALSE);
}
}
ShowWindow(m_window, SW_HIDE);
}
bool CMSWindowsPrimaryScreen::onLeave()
{
// remember the active window before we leave. GetActiveWindow()
// will only return the active window for the thread's queue (i.e.
// our app) but we need the globally active window. get that by
// attaching input to the foreground window's thread then calling
// GetActiveWindow() and then detaching our input.
m_lastActiveWindow = NULL;
m_lastForegroundWindow = GetForegroundWindow();
m_lastActiveThread = GetWindowThreadProcessId(
m_lastForegroundWindow, NULL);
if (m_lastActiveThread != 0) {
DWORD myThread = GetCurrentThreadId();
if (AttachThreadInput(myThread, m_lastActiveThread, TRUE)) {
m_lastActiveWindow = GetActiveWindow();
AttachThreadInput(myThread, m_lastActiveThread, FALSE);
}
}
// show our window
ShowWindow(m_window, SW_SHOW);
// get keyboard input and capture mouse
SetActiveWindow(m_window);
SetFocus(m_window);
SetCapture(m_window);
return true;
}
void CMSWindowsPrimaryScreen::nextMark()
{
// next mark
++m_mark;
// mark point in message queue where the mark was changed
PostThreadMessage(m_threadID, SYNERGY_MSG_MARK, m_mark, 0);
}
bool CMSWindowsPrimaryScreen::openDesktop()
{
// install hooks
m_install(m_threadID);
// note -- we use a fullscreen window to grab input. it should
// be possible to use a 1x1 window but i've run into problems
// with losing keyboard input (focus?) in that case.
// unfortunately, hiding the full screen window (when entering
// the scren causes all other windows to redraw).
SInt32 w, h;
getScreenSize(&w, &h);
// create the window
m_window = CreateWindowEx(WS_EX_TOPMOST |
WS_EX_TRANSPARENT |
WS_EX_TOOLWINDOW,
(LPCTSTR)getClass(),
"Synergy",
WS_POPUP,
0, 0, w, h, NULL, NULL,
getInstance(),
NULL);
if (m_window == NULL) {
log((CLOG_ERR "failed to create window: %d", GetLastError()));
m_uninstall();
return false;
}
// install our clipboard snooper
m_nextClipboardWindow = SetClipboardViewer(m_window);
return true;
}
void CMSWindowsPrimaryScreen::closeDesktop()
{
// destroy old window
if (m_window != NULL) {
// restore active window and hide ours
if (m_active) {
onEnter();
}
// first remove clipboard snooper
ChangeClipboardChain(m_window, m_nextClipboardWindow);
m_nextClipboardWindow = NULL;
// we no longer own the clipboard
if (m_clipboardOwner == m_window) {
m_clipboardOwner = NULL;
}
// now destroy window
DestroyWindow(m_window);
m_window = NULL;
}
// unhook
m_uninstall();
}
bool CMSWindowsPrimaryScreen::switchDesktop(HDESK desk)
{
// did we own the clipboard?
bool ownClipboard = (m_clipboardOwner == m_window);
// destroy old window
if (m_window != NULL) {
// restore active window and hide ours
if (m_active) {
onEnter();
}
// first remove clipboard snooper
ChangeClipboardChain(m_window, m_nextClipboardWindow);
m_nextClipboardWindow = NULL;
// we no longer own the clipboard
if (ownClipboard) {
m_clipboardOwner = NULL;
}
// now destroy window
DestroyWindow(m_window);
m_window = NULL;
}
// unhook
if (m_desk != NULL) {
m_uninstall();
CloseDesktop(m_desk);
m_desk = NULL;
m_deskName = "";
}
// if no new desktop then we're done
if (desk == NULL) {
log((CLOG_INFO "disconnecting desktop"));
return true;
}
// set the desktop. can only do this when there are no windows
// and hooks on the current desktop owned by this thread.
if (SetThreadDesktop(desk) == 0) {
log((CLOG_ERR "failed to set desktop: %d", GetLastError()));
CloseDesktop(desk);
return false;
}
// install hooks
m_install(m_threadID);
// note -- we use a fullscreen window to grab input. it should
// be possible to use a 1x1 window but i've run into problems
// with losing keyboard input (focus?) in that case.
// unfortunately, hiding the full screen window (when entering
// the scren causes all other windows to redraw).
SInt32 w, h;
getScreenSize(&w, &h);
// create the window
m_window = CreateWindowEx(WS_EX_TOPMOST |
WS_EX_TRANSPARENT |
WS_EX_TOOLWINDOW,
(LPCTSTR)getClass(),
"Synergy",
WS_POPUP,
0, 0, w, h, NULL, NULL,
getInstance(),
NULL);
if (m_window == NULL) {
log((CLOG_ERR "failed to create window: %d", GetLastError()));
m_uninstall();
CloseDesktop(desk);
return false;
}
// install our clipboard snooper
m_nextClipboardWindow = SetClipboardViewer(m_window);
// reassert clipboard ownership
if (ownClipboard) {
// FIXME
}
// save new desktop
m_desk = desk;
m_deskName = getDesktopName(m_desk);
log((CLOG_INFO "switched to desktop %s", m_deskName.c_str()));
// get active window and show ours
if (m_active) {
onLeave();
}
else {
// set jump zones
onConfigure();
// all messages prior to now are invalid
nextMark();
}
return true;
}
CString CMSWindowsPrimaryScreen::getCurrentDesktopName() const
{
return m_deskName;
}
static const KeyID g_virtualKey[] =
{
/* 0x00 */ kKeyNone, // reserved
/* 0x01 */ kKeyNone, // VK_LBUTTON
/* 0x02 */ kKeyNone, // VK_RBUTTON
/* 0x03 */ 0xff6b, // VK_CANCEL XK_Break
/* 0x04 */ kKeyNone, // VK_MBUTTON
/* 0x05 */ kKeyNone, // undefined
/* 0x06 */ kKeyNone, // undefined
/* 0x07 */ kKeyNone, // undefined
/* 0x08 */ 0xff08, // VK_BACK XK_Backspace
/* 0x09 */ 0xff09, // VK_TAB VK_Tab
/* 0x0a */ kKeyNone, // undefined
/* 0x0b */ kKeyNone, // undefined
/* 0x0c */ 0xff0b, // VK_CLEAR XK_Clear
/* 0x0d */ 0xff0d, // VK_RETURN XK_Return
/* 0x0e */ kKeyNone, // undefined
/* 0x0f */ kKeyNone, // undefined
/* 0x10 */ 0xffe1, // VK_SHIFT XK_Shift_L
/* 0x11 */ 0xffe3, // VK_CONTROL XK_Control_L
/* 0x12 */ 0xffe9, // VK_MENU XK_Alt_L
/* 0x13 */ 0xff13, // VK_PAUSE XK_Pause
/* 0x14 */ 0xffe5, // VK_CAPITAL XK_Caps_Lock
/* 0x15 */ kKeyNone, // VK_KANA
/* 0x16 */ kKeyNone, // VK_HANGUL
/* 0x17 */ kKeyNone, // VK_JUNJA
/* 0x18 */ kKeyNone, // VK_FINAL
/* 0x19 */ kKeyNone, // VK_KANJI
/* 0x1a */ kKeyNone, // undefined
/* 0x1b */ 0xff1b, // VK_ESCAPE XK_Escape
/* 0x1c */ kKeyNone, // VK_CONVERT
/* 0x1d */ kKeyNone, // VK_NONCONVERT
/* 0x1e */ kKeyNone, // VK_ACCEPT
/* 0x1f */ kKeyNone, // VK_MODECHANGE
/* 0x20 */ 0x0020, // VK_SPACE XK_space
/* 0x21 */ 0xff55, // VK_PRIOR XK_Prior
/* 0x22 */ 0xff56, // VK_NEXT XK_Next
/* 0x23 */ 0xff57, // VK_END XK_End
/* 0x24 */ 0xff50, // VK_HOME XK_Home
/* 0x25 */ 0xff51, // VK_LEFT XK_Left
/* 0x26 */ 0xff52, // VK_UP XK_Up
/* 0x27 */ 0xff53, // VK_RIGHT XK_Right
/* 0x28 */ 0xff54, // VK_DOWN XK_Down
/* 0x29 */ 0xff60, // VK_SELECT XK_Select
/* 0x2a */ kKeyNone, // VK_PRINT
/* 0x2b */ 0xff62, // VK_EXECUTE XK_Execute
/* 0x2c */ 0xff61, // VK_SNAPSHOT XK_Print
/* 0x2d */ 0xff63, // VK_INSERT XK_Insert
/* 0x2e */ 0xffff, // VK_DELETE XK_Delete
/* 0x2f */ 0xff6a, // VK_HELP XK_Help
/* 0x30 */ kKeyNone, // VK_0 XK_0
/* 0x31 */ kKeyNone, // VK_1 XK_1
/* 0x32 */ kKeyNone, // VK_2 XK_2
/* 0x33 */ kKeyNone, // VK_3 XK_3
/* 0x34 */ kKeyNone, // VK_4 XK_4
/* 0x35 */ kKeyNone, // VK_5 XK_5
/* 0x36 */ kKeyNone, // VK_6 XK_6
/* 0x37 */ kKeyNone, // VK_7 XK_7
/* 0x38 */ kKeyNone, // VK_8 XK_8
/* 0x39 */ kKeyNone, // VK_9 XK_9
/* 0x3a */ kKeyNone, // undefined
/* 0x3b */ kKeyNone, // undefined
/* 0x3c */ kKeyNone, // undefined
/* 0x3d */ kKeyNone, // undefined
/* 0x3e */ kKeyNone, // undefined
/* 0x3f */ kKeyNone, // undefined
/* 0x40 */ kKeyNone, // undefined
/* 0x41 */ kKeyNone, // VK_A XK_A
/* 0x42 */ kKeyNone, // VK_B XK_B
/* 0x43 */ kKeyNone, // VK_C XK_C
/* 0x44 */ kKeyNone, // VK_D XK_D
/* 0x45 */ kKeyNone, // VK_E XK_E
/* 0x46 */ kKeyNone, // VK_F XK_F
/* 0x47 */ kKeyNone, // VK_G XK_G
/* 0x48 */ kKeyNone, // VK_H XK_H
/* 0x49 */ kKeyNone, // VK_I XK_I
/* 0x4a */ kKeyNone, // VK_J XK_J
/* 0x4b */ kKeyNone, // VK_K XK_K
/* 0x4c */ kKeyNone, // VK_L XK_L
/* 0x4d */ kKeyNone, // VK_M XK_M
/* 0x4e */ kKeyNone, // VK_N XK_N
/* 0x4f */ kKeyNone, // VK_O XK_O
/* 0x50 */ kKeyNone, // VK_P XK_P
/* 0x51 */ kKeyNone, // VK_Q XK_Q
/* 0x52 */ kKeyNone, // VK_R XK_R
/* 0x53 */ kKeyNone, // VK_S XK_S
/* 0x54 */ kKeyNone, // VK_T XK_T
/* 0x55 */ kKeyNone, // VK_U XK_U
/* 0x56 */ kKeyNone, // VK_V XK_V
/* 0x57 */ kKeyNone, // VK_W XK_W
/* 0x58 */ kKeyNone, // VK_X XK_X
/* 0x59 */ kKeyNone, // VK_Y XK_Y
/* 0x5a */ kKeyNone, // VK_Z XK_Z
/* 0x5b */ 0xffe7, // VK_LWIN XK_Meta_L
/* 0x5c */ 0xffe8, // VK_RWIN XK_Meta_R
/* 0x5d */ 0xff67, // VK_APPS XK_Menu
/* 0x5e */ kKeyNone, // undefined
/* 0x5f */ kKeyNone, // undefined
/* 0x60 */ 0xffb0, // VK_NUMPAD0 XK_KP_0
/* 0x61 */ 0xffb1, // VK_NUMPAD1 XK_KP_1
/* 0x62 */ 0xffb2, // VK_NUMPAD2 XK_KP_2
/* 0x63 */ 0xffb3, // VK_NUMPAD3 XK_KP_3
/* 0x64 */ 0xffb4, // VK_NUMPAD4 XK_KP_4
/* 0x65 */ 0xffb5, // VK_NUMPAD5 XK_KP_5
/* 0x66 */ 0xffb6, // VK_NUMPAD6 XK_KP_6
/* 0x67 */ 0xffb7, // VK_NUMPAD7 XK_KP_7
/* 0x68 */ 0xffb8, // VK_NUMPAD8 XK_KP_8
/* 0x69 */ 0xffb9, // VK_NUMPAD9 XK_KP_9
/* 0x6a */ 0xffaa, // VK_MULTIPLY XK_KP_Multiply
/* 0x6b */ 0xffab, // VK_ADD XK_KP_Add
/* 0x6c */ 0xffac, // VK_SEPARATOR XK_KP_Separator
/* 0x6d */ 0xffad, // VK_SUBTRACT XK_KP_Subtract
/* 0x6e */ 0xffae, // VK_DECIMAL XK_KP_Decimal
/* 0x6f */ 0xffaf, // VK_DIVIDE XK_KP_Divide
/* 0x70 */ 0xffbe, // VK_F1 XK_F1
/* 0x71 */ 0xffbf, // VK_F2 XK_F2
/* 0x72 */ 0xffc0, // VK_F3 XK_F3
/* 0x73 */ 0xffc1, // VK_F4 XK_F4
/* 0x74 */ 0xffc2, // VK_F5 XK_F5
/* 0x75 */ 0xffc3, // VK_F6 XK_F6
/* 0x76 */ 0xffc4, // VK_F7 XK_F7
/* 0x77 */ 0xffc5, // VK_F8 XK_F8
/* 0x78 */ 0xffc6, // VK_F9 XK_F9
/* 0x79 */ 0xffc7, // VK_F10 XK_F10
/* 0x7a */ 0xffc8, // VK_F11 XK_F11
/* 0x7b */ 0xffc9, // VK_F12 XK_F12
/* 0x7c */ 0xffca, // VK_F13 XK_F13
/* 0x7d */ 0xffcb, // VK_F14 XK_F14
/* 0x7e */ 0xffcc, // VK_F15 XK_F15
/* 0x7f */ 0xffcd, // VK_F16 XK_F16
/* 0x80 */ 0xffce, // VK_F17 XK_F17
/* 0x81 */ 0xffcf, // VK_F18 XK_F18
/* 0x82 */ 0xffd0, // VK_F19 XK_F19
/* 0x83 */ 0xffd1, // VK_F20 XK_F20
/* 0x84 */ 0xffd2, // VK_F21 XK_F21
/* 0x85 */ 0xffd3, // VK_F22 XK_F22
/* 0x86 */ 0xffd4, // VK_F23 XK_F23
/* 0x87 */ 0xffd5, // VK_F24 XK_F24
/* 0x88 */ kKeyNone, // unassigned
/* 0x89 */ kKeyNone, // unassigned
/* 0x8a */ kKeyNone, // unassigned
/* 0x8b */ kKeyNone, // unassigned
/* 0x8c */ kKeyNone, // unassigned
/* 0x8d */ kKeyNone, // unassigned
/* 0x8e */ kKeyNone, // unassigned
/* 0x8f */ kKeyNone, // unassigned
/* 0x90 */ 0xff7f, // VK_NUMLOCK XK_Num_Lock
/* 0x91 */ 0xff14, // VK_SCROLL XK_Scroll_Lock
/* 0x92 */ kKeyNone, // unassigned
/* 0x93 */ kKeyNone, // unassigned
/* 0x94 */ kKeyNone, // unassigned
/* 0x95 */ kKeyNone, // unassigned
/* 0x96 */ kKeyNone, // unassigned
/* 0x97 */ kKeyNone, // unassigned
/* 0x98 */ kKeyNone, // unassigned
/* 0x99 */ kKeyNone, // unassigned
/* 0x9a */ kKeyNone, // unassigned
/* 0x9b */ kKeyNone, // unassigned
/* 0x9c */ kKeyNone, // unassigned
/* 0x9d */ kKeyNone, // unassigned
/* 0x9e */ kKeyNone, // unassigned
/* 0x9f */ kKeyNone, // unassigned
/* 0xa0 */ 0xffe1, // VK_LSHIFT XK_Shift_L
/* 0xa1 */ 0xffe2, // VK_RSHIFT XK_Shift_R
/* 0xa2 */ 0xffe3, // VK_LCONTROL XK_Control_L
/* 0xa3 */ 0xffe4, // VK_RCONTROL XK_Control_R
/* 0xa4 */ 0xffe9, // VK_LMENU XK_Alt_L
/* 0xa5 */ 0xffea, // VK_RMENU XK_Alt_R
/* 0xa6 */ kKeyNone, // unassigned
/* 0xa7 */ kKeyNone, // unassigned
/* 0xa8 */ kKeyNone, // unassigned
/* 0xa9 */ kKeyNone, // unassigned
/* 0xaa */ kKeyNone, // unassigned
/* 0xab */ kKeyNone, // unassigned
/* 0xac */ kKeyNone, // unassigned
/* 0xad */ kKeyNone, // unassigned
/* 0xae */ kKeyNone, // unassigned
/* 0xaf */ kKeyNone, // unassigned
/* 0xb0 */ kKeyNone, // unassigned
/* 0xb1 */ kKeyNone, // unassigned
/* 0xb2 */ kKeyNone, // unassigned
/* 0xb3 */ kKeyNone, // unassigned
/* 0xb4 */ kKeyNone, // unassigned
/* 0xb5 */ kKeyNone, // unassigned
/* 0xb6 */ kKeyNone, // unassigned
/* 0xb7 */ kKeyNone, // unassigned
/* 0xb8 */ kKeyNone, // unassigned
/* 0xb9 */ kKeyNone, // unassigned
/* 0xba */ kKeyNone, // OEM specific
/* 0xbb */ kKeyNone, // OEM specific
/* 0xbc */ kKeyNone, // OEM specific
/* 0xbd */ kKeyNone, // OEM specific
/* 0xbe */ kKeyNone, // OEM specific
/* 0xbf */ kKeyNone, // OEM specific
/* 0xc0 */ kKeyNone, // OEM specific
/* 0xc1 */ kKeyNone, // unassigned
/* 0xc2 */ kKeyNone, // unassigned
/* 0xc3 */ kKeyNone, // unassigned
/* 0xc4 */ kKeyNone, // unassigned
/* 0xc5 */ kKeyNone, // unassigned
/* 0xc6 */ kKeyNone, // unassigned
/* 0xc7 */ kKeyNone, // unassigned
/* 0xc8 */ kKeyNone, // unassigned
/* 0xc9 */ kKeyNone, // unassigned
/* 0xca */ kKeyNone, // unassigned
/* 0xcb */ kKeyNone, // unassigned
/* 0xcc */ kKeyNone, // unassigned
/* 0xcd */ kKeyNone, // unassigned
/* 0xce */ kKeyNone, // unassigned
/* 0xcf */ kKeyNone, // unassigned
/* 0xd0 */ kKeyNone, // unassigned
/* 0xd1 */ kKeyNone, // unassigned
/* 0xd2 */ kKeyNone, // unassigned
/* 0xd3 */ kKeyNone, // unassigned
/* 0xd4 */ kKeyNone, // unassigned
/* 0xd5 */ kKeyNone, // unassigned
/* 0xd6 */ kKeyNone, // unassigned
/* 0xd7 */ kKeyNone, // unassigned
/* 0xd8 */ kKeyNone, // unassigned
/* 0xd9 */ kKeyNone, // unassigned
/* 0xda */ kKeyNone, // unassigned
/* 0xdb */ kKeyNone, // OEM specific
/* 0xdc */ kKeyNone, // OEM specific
/* 0xdd */ kKeyNone, // OEM specific
/* 0xde */ kKeyNone, // OEM specific
/* 0xdf */ kKeyNone, // OEM specific
/* 0xe0 */ kKeyNone, // OEM specific
/* 0xe1 */ kKeyNone, // OEM specific
/* 0xe2 */ kKeyNone, // OEM specific
/* 0xe3 */ kKeyNone, // OEM specific
/* 0xe4 */ kKeyNone, // OEM specific
/* 0xe5 */ kKeyNone, // unassigned
/* 0xe6 */ kKeyNone, // OEM specific
/* 0xe7 */ kKeyNone, // unassigned
/* 0xe8 */ kKeyNone, // unassigned
/* 0xe9 */ kKeyNone, // OEM specific
/* 0xea */ kKeyNone, // OEM specific
/* 0xeb */ kKeyNone, // OEM specific
/* 0xec */ kKeyNone, // OEM specific
/* 0xed */ kKeyNone, // OEM specific
/* 0xee */ kKeyNone, // OEM specific
/* 0xef */ kKeyNone, // OEM specific
/* 0xf0 */ kKeyNone, // OEM specific
/* 0xf1 */ kKeyNone, // OEM specific
/* 0xf2 */ kKeyNone, // OEM specific
/* 0xf3 */ kKeyNone, // OEM specific
/* 0xf4 */ kKeyNone, // OEM specific
/* 0xf5 */ kKeyNone, // OEM specific
/* 0xf6 */ kKeyNone, // VK_ATTN
/* 0xf7 */ kKeyNone, // VK_CRSEL
/* 0xf8 */ kKeyNone, // VK_EXSEL
/* 0xf9 */ kKeyNone, // VK_EREOF
/* 0xfa */ kKeyNone, // VK_PLAY
/* 0xfb */ kKeyNone, // VK_ZOOM
/* 0xfc */ kKeyNone, // reserved
/* 0xfd */ kKeyNone, // VK_PA1
/* 0xfe */ kKeyNone, // VK_OEM_CLEAR
/* 0xff */ kKeyNone // reserved
};
KeyID CMSWindowsPrimaryScreen::mapKey(
WPARAM vkCode, LPARAM info,
KeyModifierMask* maskOut)
{
// note: known microsoft bugs
// Q72583 -- MapVirtualKey() maps keypad keys incorrectly
// 95,98: num pad vk code -> invalid scan code
// 95,98,NT4: num pad scan code -> bad vk code except
// SEPARATOR, MULTIPLY, SUBTRACT, ADD
static const KeyID XK_Multi_key = 0xff20;
assert(maskOut != NULL);
// map modifier key
KeyModifierMask mask = 0;
if (((m_keys[VK_LSHIFT] |
m_keys[VK_RSHIFT] |
m_keys[VK_SHIFT]) & 0x80) != 0)
mask |= KeyModifierShift;
if (((m_keys[VK_LCONTROL] |
m_keys[VK_RCONTROL] |
m_keys[VK_CONTROL]) & 0x80) != 0)
mask |= KeyModifierControl;
if (((m_keys[VK_LMENU] |
m_keys[VK_RMENU] |
m_keys[VK_MENU]) & 0x80) != 0)
mask |= KeyModifierAlt;
if (((m_keys[VK_LWIN] |
m_keys[VK_RWIN]) & 0x80) != 0)
mask |= KeyModifierMeta;
if ((m_keys[VK_CAPITAL] & 0x01) != 0)
mask |= KeyModifierCapsLock;
if ((m_keys[VK_NUMLOCK] & 0x01) != 0)
mask |= KeyModifierNumLock;
if ((m_keys[VK_SCROLL] & 0x01) != 0)
mask |= KeyModifierScrollLock;
*maskOut = mask;
log((CLOG_DEBUG2 "key in vk=%d info=0x%08x mask=0x%04x", vkCode, info, mask));
// get the scan code
UINT scanCode = static_cast<UINT>((info & 0xff0000) >> 16);
// convert virtual key to one that distinguishes between left and
// right for keys that have left/right versions. known scan codes
// that don't have left/right versions are passed through unchanged.
// unknown scan codes return 0.
UINT vkCode2 = MapVirtualKey(scanCode, 3);
// work around bug Q72583 (bad num pad conversion in MapVirtualKey())
if (vkCode >= VK_NUMPAD0 && vkCode <= VK_DIVIDE)
vkCode2 = vkCode;
// MapVirtualKey() appears to map VK_LWIN, VK_RWIN, VK_APPS to
// some other meaningless virtual key. work around that bug.
else if (vkCode >= VK_LWIN && vkCode <= VK_APPS)
vkCode2 = vkCode;
// if MapVirtualKey failed then use original virtual key
else if (vkCode2 == 0)
vkCode2 = vkCode;
// sadly, win32 will not distinguish between the left and right
// control and alt keys using the above function. however, we
// can check for those: if bit 24 of info is set then the key
// is a "extended" key, such as the right control and right alt
// keys.
if ((info & 0x1000000) != 0) {
switch (vkCode2) {
case VK_CONTROL:
case VK_LCONTROL:
vkCode2 = VK_RCONTROL;
break;
case VK_MENU:
case VK_LMENU:
vkCode2 = VK_RMENU;
break;
}
}
// use left/right distinguishing virtual key
vkCode = vkCode2;
log((CLOG_DEBUG1 "key vk=%d scan=%d", vkCode, scanCode));
// handle some keys via table lookup
KeyID id = g_virtualKey[vkCode];
if (id != kKeyNone) {
return id;
}
// check for dead keys
if (MapVirtualKey(vkCode, 2) >= 0x8000) {
return XK_Multi_key;
}
// ToAscii() maps ctrl+letter to the corresponding control code
// and ctrl+backspace to delete. if we've got a control code or
// delete then do ToAscii() again but without the control state.
// ToAscii() interprets the control modifier state which we don't
// want. so save the control state then clear it.
BYTE lControl = m_keys[VK_LCONTROL];
BYTE rControl = m_keys[VK_RCONTROL];
BYTE control = m_keys[VK_CONTROL];
m_keys[VK_LCONTROL] = 0;
m_keys[VK_RCONTROL] = 0;
m_keys[VK_CONTROL] = 0;
// convert to ascii
WORD ascii;
int result = ToAscii(vkCode, scanCode, m_keys, &ascii, 0);
// restore control state
m_keys[VK_LCONTROL] = lControl;
m_keys[VK_RCONTROL] = rControl;
m_keys[VK_CONTROL] = control;
// if result is less than zero then it was a dead key. that key
// is remembered by the keyboard which we don't want. remove it
// by calling ToAscii() again with arbitrary arguments.
if (result < 0) {
ToAscii(vkCode, scanCode, m_keys, &ascii, 0);
return XK_Multi_key;
}
// if result is 1 then the key was succesfully converted
else if (result == 1) {
return static_cast<KeyID>(ascii & 0x00ff);
}
// if result is 2 then a previous dead key could not be composed.
// put the old dead key back.
else if (result == 2) {
// get the scan code of the dead key and the shift state
// required to generate it.
vkCode = VkKeyScan(static_cast<TCHAR>(ascii & 0x00ff));
// set shift state required to generate key
BYTE keys[256];
memset(keys, 0, sizeof(keys));
if (vkCode & 0x0100)
keys[VK_SHIFT] = 0x80;
if (vkCode & 0x0100)
keys[VK_CONTROL] = 0x80;
if (vkCode & 0x0100)
keys[VK_MENU] = 0x80;
// strip shift state off of virtual key code
vkCode &= 0x00ff;
// get the scan code for the key
scanCode = MapVirtualKey(vkCode, 0);
// put it back
ToAscii(vkCode, scanCode, keys, &ascii, 0);
return XK_Multi_key;
}
// cannot convert key
return kKeyNone;
}
ButtonID CMSWindowsPrimaryScreen::mapButton(
WPARAM button) const
{
switch (button) {
case WM_LBUTTONDOWN:
case WM_LBUTTONUP:
return kButtonLeft;
case WM_MBUTTONDOWN:
case WM_MBUTTONUP:
return kButtonMiddle;
case WM_RBUTTONDOWN:
case WM_RBUTTONUP:
return kButtonRight;
default:
return kButtonNone;
}
}
void CMSWindowsPrimaryScreen::updateKeys()
{
// not using GetKeyboardState() because that doesn't seem to give
// up-to-date results. i don't know why that is or why GetKeyState()
// should give different results.
// clear key state
memset(m_keys, 0, sizeof(m_keys));
// we only care about the modifier key states
m_keys[VK_LSHIFT] = static_cast<BYTE>(GetKeyState(VK_LSHIFT));
m_keys[VK_RSHIFT] = static_cast<BYTE>(GetKeyState(VK_RSHIFT));
m_keys[VK_SHIFT] = static_cast<BYTE>(GetKeyState(VK_SHIFT));
m_keys[VK_LCONTROL] = static_cast<BYTE>(GetKeyState(VK_LCONTROL));
m_keys[VK_RCONTROL] = static_cast<BYTE>(GetKeyState(VK_RCONTROL));
m_keys[VK_CONTROL] = static_cast<BYTE>(GetKeyState(VK_CONTROL));
m_keys[VK_LMENU] = static_cast<BYTE>(GetKeyState(VK_LMENU));
m_keys[VK_RMENU] = static_cast<BYTE>(GetKeyState(VK_RMENU));
m_keys[VK_MENU] = static_cast<BYTE>(GetKeyState(VK_MENU));
m_keys[VK_LWIN] = static_cast<BYTE>(GetKeyState(VK_LWIN));
m_keys[VK_RWIN] = static_cast<BYTE>(GetKeyState(VK_RWIN));
m_keys[VK_APPS] = static_cast<BYTE>(GetKeyState(VK_APPS));
m_keys[VK_CAPITAL] = static_cast<BYTE>(GetKeyState(VK_CAPITAL));
m_keys[VK_NUMLOCK] = static_cast<BYTE>(GetKeyState(VK_NUMLOCK));
m_keys[VK_SCROLL] = static_cast<BYTE>(GetKeyState(VK_SCROLL));
}
void CMSWindowsPrimaryScreen::updateKey(
UINT vkCode, bool press)
{
if (press) {
switch (vkCode) {
case VK_LSHIFT:
case VK_RSHIFT:
case VK_SHIFT:
m_keys[vkCode] |= 0x80;
m_keys[VK_SHIFT] |= 0x80;
break;
case VK_LCONTROL:
case VK_RCONTROL:
case VK_CONTROL:
m_keys[vkCode] |= 0x80;
m_keys[VK_CONTROL] |= 0x80;
break;
case VK_LMENU:
case VK_RMENU:
case VK_MENU:
m_keys[vkCode] |= 0x80;
m_keys[VK_MENU] |= 0x80;
break;
case VK_LWIN:
case VK_RWIN:
case VK_APPS:
m_keys[vkCode] |= 0x80;
break;
case VK_CAPITAL:
case VK_NUMLOCK:
case VK_SCROLL:
// toggle keys
m_keys[vkCode] |= 0x80;
break;
}
}
else {
switch (vkCode) {
case VK_LSHIFT:
case VK_RSHIFT:
case VK_SHIFT:
m_keys[vkCode] &= ~0x80;
if (((m_keys[VK_LSHIFT] | m_keys[VK_RSHIFT]) & 0x80) == 0) {
m_keys[VK_SHIFT] &= ~0x80;
}
break;
case VK_LCONTROL:
case VK_RCONTROL:
case VK_CONTROL:
m_keys[vkCode] &= ~0x80;
if (((m_keys[VK_LCONTROL] | m_keys[VK_RCONTROL]) & 0x80) == 0) {
m_keys[VK_CONTROL] &= ~0x80;
}
break;
case VK_LMENU:
case VK_RMENU:
case VK_MENU:
m_keys[vkCode] &= ~0x80;
if (((m_keys[VK_LMENU] | m_keys[VK_RMENU]) & 0x80) == 0) {
m_keys[VK_MENU] &= ~0x80;
}
break;
case VK_LWIN:
case VK_RWIN:
case VK_APPS:
m_keys[vkCode] &= ~0x80;
break;
case VK_CAPITAL:
case VK_NUMLOCK:
case VK_SCROLL:
// toggle keys
m_keys[vkCode] &= ~0x80;
m_keys[vkCode] ^= 0x01;
break;
}
}
}
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