all files / src/helpers/ raf.js

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'use strict';
 
Iif (angular.version.minor < 3 && angular.version.dot < 14) {
  angular.module('ng')
 
  .factory('$$rAF', function ($window, $timeout) {
 
    var requestAnimationFrame = $window.requestAnimationFrame ||
                                $window.webkitRequestAnimationFrame ||
                                $window.mozRequestAnimationFrame;
 
    var cancelAnimationFrame = $window.cancelAnimationFrame ||
                               $window.webkitCancelAnimationFrame ||
                               $window.mozCancelAnimationFrame ||
                               $window.webkitCancelRequestAnimationFrame;
 
    var rafSupported = !!requestAnimationFrame;
    var raf = rafSupported ?
      function (fn) {
        var id = requestAnimationFrame(fn);
        return function () {
          cancelAnimationFrame(id);
        };
      } :
      function (fn) {
        var timer = $timeout(fn, 16.66, false); // 1000 / 60 = 16.666
        return function () {
          $timeout.cancel(timer);
        };
      };
 
    raf.supported = rafSupported;
 
    return raf;
 
  });
}