ionic-framework/js/ext/angular/src/controller/ionicScrollController.js

(function() {
'use strict';

angular.module('ionic.ui.scroll')

.controller('$ionicScroll', ['$scope', 'scrollViewOptions', '$timeout', '$ionicScrollDelegate', '$window', function($scope, scrollViewOptions, $timeout, $ionicScrollDelegate, $window) {

  var self = this;

  var element = this.element = scrollViewOptions.el;
  var scrollView = this.scrollView = new ionic.views.Scroll(scrollViewOptions);

  if (!angular.isDefined(scrollViewOptions.bouncing)) {
    ionic.Platform.ready(function() {
      scrollView.options.bouncing = !ionic.Platform.isAndroid();
    });
  }

  var $element = this.$element = angular.element(element);

  //Attach self to element as a controller so other directives can require this controller
  //through `require: '$ionicScroll'
  $element.data('$$ionicScrollController', this);

  //Register delegate for event handling
  $ionicScrollDelegate.register($scope, $element, scrollView);

  $window.addEventListener('resize', resize);
  $scope.$on('$destroy', function() {
    $window.removeEventListener('resize', resize);
  });
  function resize() {
    scrollView.resize();
  }

  $timeout(function() {
    scrollView.run();

    self.refresher = element.querySelector('.scroll-refresher');

    // Activate pull-to-refresh
    if(self.refresher) {
      var refresherHeight = self.refresher.clientHeight || 0;
      scrollView.activatePullToRefresh(refresherHeight, function() {
        self.refresher.classList.add('active');
      }, function() {
        self.refresher.classList.remove('refreshing');
        self.refresher.classList.remove('active');
      }, function() {
        self.refresher.classList.add('refreshing');
        $scope.onRefresh && $scope.onRefresh();
        $scope.$parent.$broadcast('scroll.onRefresh');
      });
    }
  });

}]);

})();