more testing...

Signed-off-by: Alex A. Naanou <alex.nanou@gmail.com>

lib/jli.js

@@ -484,6 +484,7 @@ function animateElementTo2(elem, to, duration, easing, speed, use_transitions){
 		left: to.left - from.left,
 	}
 
+	/*
 	// accepts either 'top' or 'left' the rest is passed as closures...
 	var _shift = function(direction, t){
 		var v = direction == 'top' ? 'y' : 'x'
@@ -501,6 +502,7 @@ function animateElementTo2(elem, to, duration, easing, speed, use_transitions){
 			}
 		}
 	}
+	*/
 
 	var runner = animationFrameRunner(function(){
 		var t = Date.now()
@@ -515,8 +517,34 @@ function animateElementTo2(elem, to, duration, easing, speed, use_transitions){
 		// calculate target position for current step...
 		// XXX do propper easing...
 		if(speed != null){
-			_shift('top', t)
+			//_shift('top', t)
-			_shift('left', t)
+			//_shift('left', t)
+			if(Math.abs(dist.top) >= 1){
+				dy = ((t - start) * speed.y)
+				if(Math.abs(dist.top) > Math.abs(dy)){
+					dist.top -= dy
+					cur.top = Math.round(cur.top + dy)
+					// normalize...
+					cur.top = Math.abs(dist.top) <= 1 ? to.top : cur.top
+					// calc speed for next step...
+					speed.y = dist.top / (duration - (t - start))
+				} else {
+					cur.top = to.top
+				}
+			}
+			if(Math.abs(dist.left) >= 1){
+				dx = ((t - start) * speed.x)
+				if(Math.abs(dist.left) > Math.abs(dx)){
+					dist.left -= dx
+					cur.left = Math.round(cur.left + dx)
+					// normalize...
+					cur.left = Math.abs(dist.left) <= 1 ? to.left : cur.left
+					// calc speed for next step...
+					speed.x = dist.left / (duration - (t - start))
+				} else {
+					cur.left = to.left
+				}
+			}
 
 		// liner speed...
 		} else {