protected override void Initialize(IObservable <EventPattern <WMEventArgs> > windowMessages, IObservable <bool> disabled)
{
var keyNotifications = windowMessages
.Select <EventPattern <WMEventArgs>, KeyNotification>(e =>
{
var a = e.EventArgs;
switch (a.Message)
{
case WM.KEYDOWN:
case WM.SYSKEYDOWN:
return(new KeyDownNotification((Keys)a.WParam, this));
case WM.CHAR:
case WM.SYSCHAR:
return(new KeyPressNotification((char)a.WParam, this));
case WM.KEYUP:
case WM.SYSKEYUP:
return(new KeyUpNotification((Keys)a.WParam, this));
}
return(null);
}
)
.OfType <KeyNotification>();
var keyboard = new Keyboard(keyNotifications);
FKeyboardOut[0] = keyboard;
// Subscribe to the keyboard so we can write the legacy keyboard string output
FKeyboardSubscription = keyboard.KeyNotifications
.OfType <KeyCodeNotification>()
.Subscribe(keyNotification =>
{
var keyCode = keyNotification.KeyCode;
var keyName = LegacyKeyboardHelper.VirtualKeycodeToString(keyCode);
switch (keyNotification.Kind)
{
case KeyNotificationKind.KeyDown:
if (!FLegacyKeyStringOut.Contains(keyName))
{
FLegacyKeyStringOut.Add(keyName);
}
break;
case KeyNotificationKind.KeyUp:
FLegacyKeyStringOut.Remove(keyName);
break;
default:
break;
}
}
);
// Create a keyboard split node for us and connect our keyboard out to its keyboard in
var nodeInfo = FIOFactory.NodeInfos.First(n => n.Name == "KeyboardState" && n.Category == "System" && n.Version == "Split Legacy");
FKeyboardSplitNode = FIOFactory.CreatePlugin(nodeInfo, c => c.IOAttribute.Name == "Keyboard", c => FKeyboardOut);
}
protected override void Evaluate(int spreadMax, bool enabled)
{
if (enabled)
{
// To support old keyboard node
if (FLegacyKeyStringIn.SliceCount > 0)
{
var keys = FLegacyKeyStringIn.Select(keyAsString => LegacyKeyboardHelper.StringToVirtualKeycode(keyAsString));
FKeyboardIn.SliceCount = 1;
FKeyboardIn[0] = new KeyboardState(keys);
}
if (FKeyboardIn.SliceCount > 0)
{
var currentKeyboardIn = FKeyboardIn[0] ?? KeyboardState.Empty;
if (currentKeyboardIn != FLastKeyboardIn)
{
var modifierKeys = currentKeyboardIn.ModifierKeys.Select(k => (VirtualKeyCode)k);
var keys = currentKeyboardIn.KeyCodes.Select(k => (VirtualKeyCode)k).Except(modifierKeys);
InputSimulator.SimulateModifiedKeyStroke(modifierKeys, keys);
}
FLastKeyboardIn = currentKeyboardIn;
}
// Works when we call GetKeyState before calling GetKeyboardState ?!
//if (FHost.IsRunningInBackground)
// FKeysOut[0] = KeyboardState.CurrentAsync;
//else
var keyboard = KeyboardState.Current;
if (keyboard != KeyboardState.Empty && keyboard == FLastKeyboard)
{
// Keyboard stayed the same
if (FStopwatch.ElapsedMilliseconds > 500)
{
// Simulate key repeat by generating a new keyboard with different time code
var time = FStopwatch.ElapsedMilliseconds / 50;
var isNewKeyDown = time != FKeyboardOut[0].Time;
FKeyboardOut[0] = new KeyboardState(keyboard.KeyCodes, keyboard.CapsLock, (int)time);
// Simulate legacy output
if (isNewKeyDown)
{
FLegacyKeyBufferOut.AssignFrom(FKeyDowns);
}
else
{
FLegacyKeyBufferOut.SliceCount = 1;
FLegacyKeyBufferOut[0] = string.Empty;
}
// Evaluate our split plugin
FKeyboardSplitNode.Evaluate(spreadMax);
}
else
{
// Simulate legacy output
FLegacyKeyBufferOut.SliceCount = 1;
FLegacyKeyBufferOut[0] = string.Empty;
}
}
else
{
FStopwatch.Restart();
FKeyboardOut[0] = keyboard;
// Simulate legacy output
FLegacyKeyStringOut.AssignFrom(keyboard.KeyCodes.Select(k => LegacyKeyboardHelper.VirtualKeycodeToString(k)));
FKeyDowns = keyboard.KeyCodes
.Except(FLastKeyboard.KeyCodes)
.Select(k => LegacyKeyboardHelper.VirtualKeycodeToString(k))
.ToList();
if (FKeyDowns.Count > 0)
{
FLegacyKeyBufferOut.AssignFrom(FKeyDowns);
}
else
{
FLegacyKeyBufferOut.SliceCount = 1;
FLegacyKeyBufferOut[0] = string.Empty;
}
// Evaluate our split plugin
FKeyboardSplitNode.Evaluate(spreadMax);
}
FLastKeyboard = keyboard;
}
}
protected override void Evaluate(int spreadMax, bool enabled)
{
if (enabled)
{
if (FKeyboardOut[0] != FKeyboardState)
{
FKeyboardOut[0] = FKeyboardState;
FLegacyKeyStringOut.AssignFrom(FKeyboardState.KeyCodes.Select(k => LegacyKeyboardHelper.VirtualKeycodeToString(k)));
FKeyboardSplitNode.Evaluate(spreadMax);
}
}
}
protected override void Evaluate(int spreadMax, bool enabled)
{
if (enabled)
{
Keyboard inputKeyboard;
if (FKeyboardIn.SliceCount > 0 && FKeyboardIn[0] != null)
{
inputKeyboard = FKeyboardIn[0];
}
else
{
// To support old keyboard node
var keys = FLegacyKeyStringIn.Select(keyAsString => LegacyKeyboardHelper.StringToVirtualKeycode(keyAsString))
.ToList();
var keyDowns = keys.Except(FLastLegacyInputKeys);
foreach (var keyDown in keyDowns)
{
FLegacyInputKeyboardSubject.OnNext(new KeyDownNotification(keyDown));
}
var keyUps = FLastLegacyInputKeys.Except(keys);
foreach (var keyUp in keyUps)
{
FLegacyInputKeyboardSubject.OnNext(new KeyUpNotification(keyUp));
}
FLastLegacyInputKeys = keys;
inputKeyboard = FLegacyInputKeyboard;
}
FInputKeyboardSubscription.Update(inputKeyboard);
// Works when we call GetKeyState before calling GetKeyboardState ?!
//if (FHost.IsRunningInBackground)
// FKeysOut[0] = KeyboardState.CurrentAsync;
//else
var keyboardState = KeyboardState.Current;
if (keyboardState != KeyboardState.Empty && keyboardState == FLastKeyboardState)
{
// Keyboard stayed the same
if (FStopwatch.ElapsedMilliseconds > 500)
{
// Simulate key repeat by generating a new keyboard with different time code
var time = FStopwatch.ElapsedMilliseconds / 50;
var isNewKeyDown = time != FLastTime;
// Simulate legacy output
if (isNewKeyDown)
{
foreach (var keyDown in FKeyDowns)
{
FKeyNotificationSubject.OnNext(new KeyDownNotification(keyDown));
}
FLegacyKeyBufferOut.AssignFrom(FKeyDowns.Select(k => LegacyKeyboardHelper.VirtualKeycodeToString(k)));
}
else
{
FLegacyKeyBufferOut.SliceCount = 1;
FLegacyKeyBufferOut[0] = string.Empty;
}
FLastTime = time;
// Evaluate our split plugin
FKeyboardSplitNode.Evaluate(spreadMax);
}
else
{
// Simulate legacy output
FLegacyKeyBufferOut.SliceCount = 1;
FLegacyKeyBufferOut[0] = string.Empty;
}
}
else
{
FStopwatch.Restart();
var keyDowns = keyboardState.KeyCodes.Except(FLastKeyboardState.KeyCodes);
foreach (var keyDown in keyDowns)
{
FKeyNotificationSubject.OnNext(new KeyDownNotification(keyDown));
}
var keyUps = FLastKeyboardState.KeyCodes.Except(keyboardState.KeyCodes);
foreach (var keyUp in keyUps)
{
FKeyNotificationSubject.OnNext(new KeyUpNotification(keyUp));
}
FKeyboardOut[0].CapsLock = Control.IsKeyLocked(Keys.CapsLock);
// Simulate legacy output
FLegacyKeyStringOut.AssignFrom(keyboardState.KeyCodes.Select(k => LegacyKeyboardHelper.VirtualKeycodeToString(k)));
FKeyDowns = keyboardState.KeyCodes
.Except(FLastKeyboardState.KeyCodes)
.ToList();
if (FKeyDowns.Count > 0)
{
FLegacyKeyBufferOut.AssignFrom(FKeyDowns.Select(k => LegacyKeyboardHelper.VirtualKeycodeToString(k)));
}
else
{
FLegacyKeyBufferOut.SliceCount = 1;
FLegacyKeyBufferOut[0] = string.Empty;
}
// Evaluate our split plugin
FKeyboardSplitNode.Evaluate(spreadMax);
}
FLastKeyboardState = keyboardState;
}
}