review.tizen.org Git - platform/framework/web/crosswalk-tizen.git/blob

   1 define(function () {
   2
   3     /**
   4      * Debounce callback execution
   5      */
   6     function debounce(fn, threshold, isAsap){
   7         var timeout, result;
   8         function debounced(){
   9             var args = arguments, context = this;
  10             function delayed(){
  11                 if (! isAsap) {
  12                     result = fn.apply(context, args);
  13                 }
  14                 timeout = null;
  15             }
  16             if (timeout) {
  17                 clearTimeout(timeout);
  18             } else if (isAsap) {
  19                 result = fn.apply(context, args);
  20             }
  21             timeout = setTimeout(delayed, threshold);
  22             return result;
  23         }
  24         debounced.cancel = function(){
  25             clearTimeout(timeout);
  26         };
  27         return debounced;
  28     }
  29
  30     return debounce;
  31
  32 });