carbon-components/umd/globals/js/mixins/track-blur.js

Carbon Components is a component library for IBM Cloud

(function (global, factory) {
  if (typeof define === "function" && define.amd) {
    define(['exports', '../misc/on', './handles'], factory);
  } else if (typeof exports !== "undefined") {
    factory(exports, require('../misc/on'), require('./handles'));
  } else {
    var mod = {
      exports: {}
    };
    factory(mod.exports, global.on, global.handles);
    global.trackBlur = mod.exports;
  }
})(this, function (exports, _on, _handles) {
  'use strict';

  Object.defineProperty(exports, "__esModule", {
    value: true
  });

  var _on2 = _interopRequireDefault(_on);

  var _handles2 = _interopRequireDefault(_handles);

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : {
      default: obj
    };
  }

  function _classCallCheck(instance, Constructor) {
    if (!(instance instanceof Constructor)) {
      throw new TypeError("Cannot call a class as a function");
    }
  }

  var _createClass = function () {
    function defineProperties(target, props) {
      for (var i = 0; i < props.length; i++) {
        var descriptor = props[i];
        descriptor.enumerable = descriptor.enumerable || false;
        descriptor.configurable = true;
        if ("value" in descriptor) descriptor.writable = true;
        Object.defineProperty(target, descriptor.key, descriptor);
      }
    }

    return function (Constructor, protoProps, staticProps) {
      if (protoProps) defineProperties(Constructor.prototype, protoProps);
      if (staticProps) defineProperties(Constructor, staticProps);
      return Constructor;
    };
  }();

  function _possibleConstructorReturn(self, call) {
    if (!self) {
      throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
    }

    return call && (typeof call === "object" || typeof call === "function") ? call : self;
  }

  function _inherits(subClass, superClass) {
    if (typeof superClass !== "function" && superClass !== null) {
      throw new TypeError("Super expression must either be null or a function, not " + typeof superClass);
    }

    subClass.prototype = Object.create(superClass && superClass.prototype, {
      constructor: {
        value: subClass,
        enumerable: false,
        writable: true,
        configurable: true
      }
    });
    if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass;
  }

  function trackBlur(ToMix) {
    var TrackBlur = function (_ToMix) {
      _inherits(TrackBlur, _ToMix);

      /**
       * Mix-in class to add an handler for losing focus.
       * @extends Handles
       * @param {HTMLElement} element The element working as this component.
       * @param {Object} [options] The component options.
       */
      function TrackBlur(element, options) {
        _classCallCheck(this, TrackBlur);

        var _this = _possibleConstructorReturn(this, (TrackBlur.__proto__ || Object.getPrototypeOf(TrackBlur)).call(this, element, options));

        var hasFocusin = 'onfocusin' in window;
        var focusinEventName = hasFocusin ? 'focusin' : 'focus';
        _this.manage((0, _on2.default)(_this.element.ownerDocument, focusinEventName, function (event) {
          if (!_this.element.contains(event.target)) {
            _this.handleBlur(event);
          }
        }, !hasFocusin));
        return _this;
      }

      /**
       * The method called when this component loses focus.
       * @abstract
       */


      _createClass(TrackBlur, [{
        key: 'handleBlur',
        value: function handleBlur() {
          throw new Error('Components inheriting TrackBlur mix-in must implement handleBlur() method.');
        }
      }]);

      return TrackBlur;
    }(ToMix);

    return TrackBlur;
  }

  var _exports = [_handles2.default, trackBlur];
  exports.default = _exports;
});