all files / app/components/waitIndicator/ waitIndicator.directive.js

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/**
 * @ngdoc directive
 * @name app.components.directive:feWaitIndicator
 * @restrict E
 * @description
 * Displays a spinner when the application is in a waiting state
 *
 */
 
(function () {
  'use strict';
 
  angular
    .module('app.components')
    .directive('feWaitIndicator', directive);
 
  /** @ngInject */
  function directive() {
    var directive = {
      restrict: 'E',
      templateUrl: 'app/components/waitIndicator/waitIndicator.html',
      controller: Controller,
      controllerAs: 'vm'
    };
 
    return directive;
  }
 
  /** @ngInject */
  function Controller(waitingState, $scope, $timeout, waitInterval) {
    var vm = this;
    vm.waiting = false;
 
    activate();
 
    function activate() {
      waitingState.subscribeChanged($scope, changed);
    }
 
    function changed() {
      if (waitingState.waiting()) {
        // Wait before showing indicator
        var timer = $timeout(function () {
            vm.waiting = waitingState.waiting();
          },
          waitInterval);
        $scope.$on('$destroy', function() {
          $timeout.cancel(timer);
        });
      }
      else
        vm.waiting = false;
    }
  }
})();