Add JS files

jssource/src_files/include/javascript/yui3/build/anim/anim-curve.js

@@ -0,0 +1,64 @@
+/*
+Copyright (c) 2009, Yahoo! Inc. All rights reserved.
+Code licensed under the BSD License:
+http://developer.yahoo.net/yui/license.txt
+version: 3.0.0
+build: 1549
+*/
+YUI.add('anim-curve', function(Y) {
+
+/**
+ * Adds support for the <code>curve</code> property for the <code>to</code> 
+ * attribute.  A curve is zero or more control points and an end point.
+ * @module anim
+ * @submodule anim-curve
+ */
+
+Y.Anim.behaviors.curve = {
+    set: function(anim, att, from, to, elapsed, duration, fn) {
+        from = from.slice.call(from);
+        to = to.slice.call(to);
+        var t = fn(elapsed, 0, 100, duration) / 100;
+        to.unshift(from);
+        anim._node.setXY(Y.Anim.getBezier(to, t));
+    },
+
+    get: function(anim, att) {
+        return anim._node.getXY();
+    }
+};
+
+/**
+ * Get the current position of the animated element based on t.
+ * Each point is an array of "x" and "y" values (0 = x, 1 = y)
+ * At least 2 points are required (start and end).
+ * First point is start. Last point is end.
+ * Additional control points are optional.     
+ * @for Anim
+ * @method getBezier
+ * @static
+ * @param {Array} points An array containing Bezier points
+ * @param {Number} t A number between 0 and 1 which is the basis for determining current position
+ * @return {Array} An array containing int x and y member data
+ */
+Y.Anim.getBezier = function(points, t) {  
+    var n = points.length;
+    var tmp = [];
+
+    for (var i = 0; i < n; ++i){
+        tmp[i] = [points[i][0], points[i][1]]; // save input
+    }
+    
+    for (var j = 1; j < n; ++j) {
+        for (i = 0; i < n - j; ++i) {
+            tmp[i][0] = (1 - t) * tmp[i][0] + t * tmp[parseInt(i + 1, 10)][0];
+            tmp[i][1] = (1 - t) * tmp[i][1] + t * tmp[parseInt(i + 1, 10)][1]; 
+        }
+    }
+
+    return [ tmp[0][0], tmp[0][1] ]; 
+
+};
+
+
+}, '3.0.0' ,{requires:['anim-xy']});