phoxy/ENJS

<%
/* Purpose: execute functor for each array value
 * Usage:
 *   __this.CascadeDesign('snippets/each', obj);
 * Where object is:
 * {
 *   arr: [a,b,c]
 *   each: function(v)
 *   {
 *     // HTML or any javascript code here
 *     // Because this is callback, your valid context
 *     // this, and not __this. If you get it, you could use both
 *   }
 * }
 *  a, b, c - elements in array
 *  v - iterator that would executed for each element
 * How it done:
 *   For each element snipped change swap current canvas into new one
 *   After functor did his job, new canvas appends to current
 *   This allow you do complex cross-context manipulations with canvas
 *   Even discart anything you did just now
 * Functor example:
 *   obj.each = function(v)
 *   {
 *      < % <-- use without spaces of-course
 *        Drawing element #< %@ v.each_id % >
 *        < %@ v.title % >
 *      % >
 *   })
 */

var id = __this.arr.length;

for (var k in __this.arr)
{
  var v = __this.arr[k];
  v.each_id = id--;

  // Isolate canvas
  var origin_canvas = __this.escape().DrawTo([]);
    __this.each(v, k);
  var just_drawed = __this.escape().DrawTo(origin_canvas);
  // In case comeone messed with canvas too
  __this.escape().DrawTo(origin_canvas.concat(just_drawed));
}

%>