/// <summary>
/// Raises the <see cref="ButtonPressed"/> or <see cref="ButtonReleased"/> event.
/// </summary>
/// <param name="sender">The <see cref="NRF24"/> that raised the event.</param>
/// <param name="buttonState">The state of the button.</param>
protected virtual void OnButtonEvent(NRF24 sender, ButtonState buttonState)
{
if (this.onButton == null)
{
this.onButton = new ButtonEventHandler(this.OnButtonEvent);
}
if (buttonState == ButtonState.Pressed)
{
// Program.CheckAndInvoke helps event callers get onto the Dispatcher thread.
// If the event is null then it returns false.
// If it is called while not on the Dispatcher thread, it returns false but also re-invokes this method on the Dispatcher.
// If on the thread, it returns true so that the caller can execute the event.
if (Program.CheckAndInvoke(ButtonPressed, this.onButton, sender, buttonState))
{
this.ButtonPressed(sender, buttonState);
}
}
else
{
if (Program.CheckAndInvoke(ButtonReleased, this.onButton, sender, buttonState))
{
this.ButtonReleased(sender, buttonState);
}
}
}
/// <summary>
/// Raises the <see cref="ButtonPressed"/> or <see cref="ButtonReleased"/> event.
/// </summary>
/// <param name="sender">The <see cref="NRF24"/> that raised the event.</param>
/// <param name="buttonState">The state of the button.</param>
protected virtual void OnButtonEvent(NRF24 sender, ButtonState buttonState)
{
if (this.onButton == null)
{
this.onButton = new ButtonEventHandler(this.OnButtonEvent);
}
if (buttonState == ButtonState.Pressed)
{
// Program.CheckAndInvoke helps event callers get onto the Dispatcher thread.
// If the event is null then it returns false.
// If it is called while not on the Dispatcher thread, it returns false but also re-invokes this method on the Dispatcher.
// If on the thread, it returns true so that the caller can execute the event.
if (Program.CheckAndInvoke(ButtonPressed, this.onButton, sender, buttonState))
{
this.ButtonPressed(sender, buttonState);
}
}
else
{
if (Program.CheckAndInvoke(ButtonReleased, this.onButton, sender, buttonState))
{
this.ButtonReleased(sender, buttonState);
}
}
}