/// <summary>
/// Passes a touch location to this view for handling.
/// </summary>
/// <param name="scaledLoc">The location of the touch.</param>
/// <returns>True if the UIElement was touched, false otherwise.</returns>
public override bool HandleTouch(Vector2 scaledLoc, TouchLocation rawLocation, InputState input)
{
if (!base.HandleTouch(scaledLoc, rawLocation, input)) {
return false; // touch wasn't for this view
}
if (input.TouchState.Count == 0) { // released our finger
if (SelectedUIElement != null) {
if (OnElement) { // release our finger on the selected ui element
OnTapped(); // this counts as pressing the ui element
}
ResetSelected(); // make the ui element not pressed down anymore
}
} else {
if (SelectedUIElement == null) { // we havn't selected an element yet, try to find one that we can select
if (rawLocation.State.HasFlag(TouchLocationState.Pressed)) {
// and this touch is the beginning of a touch
for (int i = 0; i < UIElements.Count; i++) {
UIElement uie = UIElements[UIElements.Count-i - 1];
if (uie.HandleTouch(scaledLoc, rawLocation, input)) {
// found the uielement that we pressed down on
OnElement = true;
SelectedUIElement = uie;
return true;
}
}
}
} else {
// already have a ui element that we started our press in
// pass in the new coordinates to it
OnElement = SelectedUIElement.HandleTouch(scaledLoc, rawLocation, input);
return true;
}
}
// went through all the elements in the view and couldn't find one that our press touches
return true;
}
public UIElementTappedArgs(UIElement u)
{
Element = u;
Arg = "";
ObjectArg = null;
ObjectArgExtra1 = null;
}
public override void ResetSelected()
{
base.ResetSelected();
if (SelectedUIElement != null) {
SelectedUIElement.ResetSelected();
SelectedUIElement = null;
}
}