carbon-components/es/components/tooltip/tooltip.js

Carbon Components is a component library for IBM Cloud

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

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; }

import settings from '../../globals/js/settings';
import mixin from '../../globals/js/misc/mixin';
import createComponent from '../../globals/js/mixins/create-component';
import initComponentByEvent from '../../globals/js/mixins/init-component-by-event';
import eventedShowHideState from '../../globals/js/mixins/evented-show-hide-state';
import handles from '../../globals/js/mixins/handles';
import FloatingMenu from '../floating-menu/floating-menu';
import getLaunchingDetails from '../../globals/js/misc/get-launching-details';
import on from '../../globals/js/misc/on';

var Tooltip = function (_mixin) {
  _inherits(Tooltip, _mixin);

  /**
   * Tooltip.
   * @extends CreateComponent
   * @extends InitComponentBySearch
   * @extends Handles
   */
  function Tooltip(element, options) {
    _classCallCheck(this, Tooltip);

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

    ['mouseover', 'mouseout', 'focus', 'blur', 'touchleave', 'touchcancel'].forEach(function (name) {
      _this.manage(on(_this.element, name, function (event) {
        _this._handleHover(event);
      }));
    });
    return _this;
  }

  /**
   * A method called when this widget is created upon events.
   * @param {Event} event The event triggering the creation.
   */


  _createClass(Tooltip, [{
    key: 'createdByEvent',
    value: function createdByEvent(event) {
      this._handleHover(event);
    }

    /**
     * Changes the shown/hidden state.
     * @param {string} state The new state.
     * @param {Object} detail The detail of the event trigging this action.
     * @param {Function} callback Callback called when change in state completes.
     // */

  }, {
    key: 'changeState',
    value: function changeState(state, detail, callback) {
      if (!this.tooltip) {
        var tooltip = this.element.ownerDocument.querySelector(this.element.getAttribute(this.options.attribTooltipTarget));
        if (!tooltip) {
          throw new Error('Cannot find the target tooltip.');
        }

        // Lazily create a component instance for tooltip
        this.tooltip = FloatingMenu.create(tooltip, {
          refNode: this.element,
          classShown: this.options.classShown,
          offset: this.options.objMenuOffset
        });
        this.children.push(this.tooltip);
      }

      // Delegates the action of changing state to the tooltip.
      // (And thus the before/after shown/hidden events are fired from the tooltip)
      this.tooltip.changeState(state, Object.assign(detail, { delegatorNode: this.element }), callback);
    }

    /**
     * Handles hover/focus events.
     * @param {Event} event The event.
     * @private
     */

  }, {
    key: '_handleHover',
    value: function _handleHover(event) {
      var state = {
        mouseover: 'shown',
        mouseout: 'hidden',
        focus: 'shown',
        blur: 'hidden',
        touchleave: 'hidden',
        touchcancel: 'hidden'
      }[event.type];
      this.changeState(state, getLaunchingDetails(event));
    }
  }], [{
    key: 'options',
    get: function get() {
      var prefix = settings.prefix;

      return {
        selectorInit: '[data-tooltip-trigger]',
        classShown: prefix + '--tooltip--shown',
        attribTooltipTarget: 'data-tooltip-target',
        objMenuOffset: { top: 10, left: 0 },
        initEventNames: ['mouseover', 'focus']
      };
    }
  }]);

  return Tooltip;
}(mixin(createComponent, initComponentByEvent, eventedShowHideState, handles));

Tooltip.components = new WeakMap();


export default Tooltip;