private RawButtonInputReport ExtractRawButtonInputReport(NotifyInputEventArgs e, RoutedEvent Event)
{
RawButtonInputReport buttonInputReport = (RawButtonInputReport)null;
InputReportEventArgs input;
if ((input = e.StagingItem.Input as InputReportEventArgs) != null && input.Report is RawButtonInputReport && input.RoutedEvent == Event)
{
buttonInputReport = (RawButtonInputReport)input.Report;
}
return(buttonInputReport);
}
private RawButtonActions GetNonRedundantActions(NotifyInputEventArgs e)
{
RawButtonActions actions;
// The CLR throws a null-ref exception if it tries to unbox a
// null. So we have to special case that.
var o = e.StagingItem.GetData(this._tagNonRedundantActions);
if (o != null)
{
actions = (RawButtonActions)o;
}
else
{
actions = new RawButtonActions();
}
return(actions);
}
private void PreNotifyInput(object sender, NotifyInputEventArgs e)
{
var buttonInput = ExtractRawButtonInputReport(e, InputManager.PreviewInputReportEvent);
if (buttonInput != null)
{
CheckForDisconnectedFocus();
/*
*
* REFACTOR --
*
* the keyboard device is only active per app domain basis -- so like if your app domain doesn't have
* focus your keyboard device is not going to give you the real state of the keyboard.
*
* When it gets focus, it needs to know about this somehow. We could use this keyboard action
* type stuff to do so. Though this design really seem to be influenced a lot from living in
* the windows world.
*
* Essentially the input stack is being used like a message pump to say, hey dude you can
* use the keyboard now -- it's not real input, it's more or less a message.
*
* It could be interesting for elements to know about this -- since I think
* they will probalby still have focus (or do they get a Got and Lost Focus when the keyboard activates -- I don't think so,
* we need to know what we were focused on when the window gets focus again.
*
* So maybe elements want to stop some animation or something when input focus moves away from the activesource, and
* start them again later. Could be interesting.
*/
if ((buttonInput.Actions & RawButtonActions.Activate) == RawButtonActions.Activate)
{
//System.Console.WriteLine("Initializing the button state.");
#if TRACK_BUTTON_STATE
// Clear out our key state storage.
for (var i = 0; i < this._buttonState.Length; i++)
{
this._buttonState[i] = 0;
}
#endif
// we are now active.
// we should track which source is active so we don't confuse deactivations.
this._isActive = true;
}
// Generally, we need to check against redundant actions.
// We never prevet the raw event from going through, but we
// will only generate the high-level events for non-redundant
// actions. We store the set of non-redundant actions in
// the dictionary of this event.
// If the input is reporting a button down, the action is never
// considered redundant.
if ((buttonInput.Actions & RawButtonActions.ButtonDown) == RawButtonActions.ButtonDown)
{
var actions = GetNonRedundantActions(e);
actions |= RawButtonActions.ButtonDown;
e.StagingItem.SetData(this._tagNonRedundantActions, actions);
// Pass along the button that was pressed, and update our state.
e.StagingItem.SetData(this._tagButton, buttonInput.Button);
#if TRACK_BUTTON_STATE
var buttonState = GetButtonState(buttonInput.Button);
if ((buttonState & ButtonState.Down) == ButtonState.Down)
{
buttonState = ButtonState.Down | ButtonState.Held;
}
else
{
buttonState |= ButtonState.Down;
}
SetButtonState(buttonInput.Button, buttonState);
#endif
// Tell the InputManager that the MostRecentDevice is us.
if (this._inputManager != null && this._inputManager.MostRecentInputDevice != this)
{
this._inputManager.MostRecentInputDevice = (InputDevice)this;
}
}
// need to detect redundant ups.
if ((buttonInput.Actions & RawButtonActions.ButtonUp) == RawButtonActions.ButtonUp)
{
var actions = GetNonRedundantActions(e);
actions |= RawButtonActions.ButtonUp;
e.StagingItem.SetData(this._tagNonRedundantActions, actions);
// Pass along the button that was pressed, and update our state.
e.StagingItem.SetData(this._tagButton, buttonInput.Button);
#if TRACK_BUTTON_STATE
var buttonState = GetButtonState(buttonInput.Button);
if ((buttonState & ButtonState.Down) == ButtonState.Down)
{
buttonState &= (~ButtonState.Down) & (ButtonState.Down | ButtonState.Held);
}
else
{
buttonState |= ButtonState.Held;
}
SetButtonState(buttonInput.Button, buttonState);
#endif
// Tell the InputManager that the MostRecentDevice is us.
if (this._inputManager != null && this._inputManager.MostRecentInputDevice != this)
{
this._inputManager.MostRecentInputDevice = (InputDevice)this;
}
}
}
// On ButtonDown, we might need to set the Repeat flag
if (e.StagingItem.Input.RoutedEvent == Buttons.PreviewButtonDownEvent)
{
CheckForDisconnectedFocus();
var args = (ButtonEventArgs)e.StagingItem.Input;
// Is this the same as the previous button?
if (this._previousButton == args.Button)
{
// Yes, this is a repeat (we got the buttondown for it twice, with no ButtonUp in between)
// what about chording?
args._isRepeat = true;
}
// Otherwise, keep this button to check against next time.
else
{
this._previousButton = args.Button;
args._isRepeat = false;
}
}
// On ButtonUp, we clear Repeat flag
else if (e.StagingItem.Input.RoutedEvent == Buttons.PreviewButtonUpEvent)
{
CheckForDisconnectedFocus();
var args = (ButtonEventArgs)e.StagingItem.Input;
args._isRepeat = false;
// Clear _previousButton, so that down/up/down/up doesn't look like a repeat
this._previousButton = HardwareButton.None;
}
}
private RawButtonActions GetNonRedundantActions(NotifyInputEventArgs e)
{
object data = e.StagingItem.GetData(this._tagNonRedundantActions);
return(data == null ? (RawButtonActions)0 : (RawButtonActions)data);
}
private void PreNotifyInput(object sender, NotifyInputEventArgs e)
{
RawButtonInputReport buttonInputReport = this.ExtractRawButtonInputReport(e, InputManager.PreviewInputReportEvent);
if (buttonInputReport != null)
{
this.CheckForDisconnectedFocus();
if ((buttonInputReport.Actions & RawButtonActions.Activate) == RawButtonActions.Activate)
{
for (int index = 0; index < this._buttonState.Length; ++index)
{
this._buttonState[index] = (byte)0;
}
this._isActive = true;
}
if ((buttonInputReport.Actions & RawButtonActions.ButtonDown) == RawButtonActions.ButtonDown)
{
RawButtonActions rawButtonActions = this.GetNonRedundantActions(e) | RawButtonActions.ButtonDown;
e.StagingItem.SetData(this._tagNonRedundantActions, (object)rawButtonActions);
e.StagingItem.SetData(this._tagButton, (object)buttonInputReport.Button);
ButtonState buttonState = this.GetButtonState(buttonInputReport.Button);
ButtonState state = (buttonState & ButtonState.Down) != ButtonState.Down ? buttonState | ButtonState.Down : ButtonState.Down | ButtonState.Held;
this.SetButtonState(buttonInputReport.Button, state);
if (this._inputManager != null && this._inputManager.MostRecentInputDevice != this)
{
this._inputManager.MostRecentInputDevice = (InputDevice)this;
}
}
if ((buttonInputReport.Actions & RawButtonActions.ButtonUp) == RawButtonActions.ButtonUp)
{
RawButtonActions rawButtonActions = this.GetNonRedundantActions(e) | RawButtonActions.ButtonUp;
e.StagingItem.SetData(this._tagNonRedundantActions, (object)rawButtonActions);
e.StagingItem.SetData(this._tagButton, (object)buttonInputReport.Button);
ButtonState buttonState = this.GetButtonState(buttonInputReport.Button);
ButtonState state = (buttonState & ButtonState.Down) != ButtonState.Down ? buttonState | ButtonState.Held : buttonState & ButtonState.Held;
this.SetButtonState(buttonInputReport.Button, state);
if (this._inputManager != null && this._inputManager.MostRecentInputDevice != this)
{
this._inputManager.MostRecentInputDevice = (InputDevice)this;
}
}
}
if (e.StagingItem.Input.RoutedEvent == Buttons.PreviewButtonDownEvent)
{
this.CheckForDisconnectedFocus();
ButtonEventArgs input = (ButtonEventArgs)e.StagingItem.Input;
if (this._previousButton == input.Button)
{
input._isRepeat = true;
}
else
{
this._previousButton = input.Button;
input._isRepeat = false;
}
}
else
{
if (e.StagingItem.Input.RoutedEvent != Buttons.PreviewButtonUpEvent)
{
return;
}
this.CheckForDisconnectedFocus();
((ButtonEventArgs)e.StagingItem.Input)._isRepeat = false;
this._previousButton = HardwareButton.None;
}
}
