/// <summary>Looks for any element with the 'draggable' attribute.</summary>
public static Element GetDraggable(Element current){
while(current!=null){
// Got the attribute?
if(current.getAttribute("draggable")!=null){
return current;
}
current=current.parentElement;
}
// Nope!
return null;
}
/// <summary>Finds the minimum drag distance. Always greater than zero.</summary>
public float GetMinDragDistance()
{
// If we've got a 'draggable' element, that is preferred:
Element draggable = ((ActiveUpdatingTarget == null)?ActivePressedTarget : ActiveUpdatingTarget) as Element;
if (draggable == null)
{
return(Input.MinimumDragStartDistance);
}
float distance = draggable.DragStartDistance;
if (distance == 0f)
{
// Default, (after checking for a mindrag attribute):
string minDrag = draggable.getAttribute("mindrag");
if (minDrag == null)
{
// Unspecified.
// Default depends if we're actually a 'draggable' or not:
if (ActiveUpdatingTarget == null)
{
distance = Input.MinimumDragStartDistance;
}
else
{
// 1:
distance = 1f;
}
}
else if (!float.TryParse(minDrag, out distance) || distance <= 0f)
{
// Default:
distance = Input.MinimumDragStartDistance;
}
}
return(distance);
}