"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");

var _typeof2 = _interopRequireDefault(require("@babel/runtime/helpers/typeof"));

/**!
 * @fileOverview Kickass library to create and place poppers near their reference elements.
 * @version 1.1.5
 * @license
 * Copyright (c) 2016 Federico Zivolo and contributors
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */
(function (global, factory) {
  (typeof exports === "undefined" ? "undefined" : (0, _typeof2["default"])(exports)) === 'object' && typeof module !== 'undefined' ? module.exports = factory(require('popper.js')) : typeof define === 'function' && define.amd ? define(['popper.js'], factory) : global.Tooltip = factory(global.Popper);
})(void 0, function (Popper) {
  'use strict';

  Popper = Popper && 'default' in Popper ? Popper['default'] : Popper;
  /**
   * Check if the given variable is a function
   * @method
   * @memberof Popper.Utils
   * @argument {Any} functionToCheck - variable to check
   * @returns {Boolean} answer to: is a function?
   */

  function isFunction(functionToCheck) {
    var getType = {};
    return functionToCheck && getType.toString.call(functionToCheck) === '[object Function]';
  }

  var classCallCheck = 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;
    };
  }();

  var _extends = Object.assign || function (target) {
    for (var i = 1; i < arguments.length; i++) {
      var source = arguments[i];

      for (var key in source) {
        if (Object.prototype.hasOwnProperty.call(source, key)) {
          target[key] = source[key];
        }
      }
    }

    return target;
  };

  var DEFAULT_OPTIONS = {
    container: false,
    delay: 0,
    html: false,
    placement: 'top',
    title: '',
    template: '<div class="tooltip" role="tooltip"><div class="tooltip-arrow"></div><div class="tooltip-inner"></div></div>',
    trigger: 'hover focus',
    offset: 0
  };

  var Tooltip = function () {
    /**
     * Create a new Tooltip.js instance
     * @class Tooltip
     * @param {HTMLElement} reference - The DOM node used as reference of the tooltip (it can be a jQuery element).
     * @param {Object} options
     * @param {String} options.placement=bottom
     *      Placement of the popper accepted values: `top(-start, -end), right(-start, -end), bottom(-start, -end),
     *      left(-start, -end)`
     * @param {HTMLElement|String|false} options.container=false - Append the tooltip to a specific element.
     * @param {Number|Object} options.delay=0
     *      Delay showing and hiding the tooltip (ms) - does not apply to manual trigger type.
     *      If a number is supplied, delay is applied to both hide/show.
     *      Object structure is: `{ show: 500, hide: 100 }`
     * @param {Boolean} options.html=false - Insert HTML into the tooltip. If false, the content will inserted with `innerText`.
     * @param {String|PlacementFunction} options.placement='top' - One of the allowed placements, or a function returning one of them.
     * @param {String} [options.template='<div class="tooltip" role="tooltip"><div class="tooltip-arrow"></div><div class="tooltip-inner"></div></div>']
     *      Base HTML to used when creating the tooltip.
     *      The tooltip's `title` will be injected into the `.tooltip-inner` or `.tooltip__inner`.
     *      `.tooltip-arrow` or `.tooltip__arrow` will become the tooltip's arrow.
     *      The outermost wrapper element should have the `.tooltip` class.
     * @param {String|HTMLElement|TitleFunction} options.title='' - Default title value if `title` attribute isn't present.
     * @param {String} [options.trigger='hover focus']
     *      How tooltip is triggered - click, hover, focus, manual.
     *      You may pass multiple triggers; separate them with a space. `manual` cannot be combined with any other trigger.
     * @param {HTMLElement} options.boundariesElement
     *      The element used as boundaries for the tooltip. For more information refer to Popper.js'
     *      [boundariesElement docs](https://popper.js.org/popper-documentation.html)
     * @param {Number|String} options.offset=0 - Offset of the tooltip relative to its reference. For more information refer to Popper.js'
     *      [offset docs](https://popper.js.org/popper-documentation.html)
     * @param {Object} options.popperOptions={} - Popper options, will be passed directly to popper instance. For more information refer to Popper.js'
     *      [options docs](https://popper.js.org/popper-documentation.html)
     * @return {Object} instance - The generated tooltip instance
     */
    function Tooltip(reference, options) {
      classCallCheck(this, Tooltip);

      _initialiseProps.call(this); // apply user options over default ones


      options = _extends({}, DEFAULT_OPTIONS, options);
      reference.jquery && (reference = reference[0]); // cache reference and options

      this.reference = reference;
      this.options = options; // get events list

      var events = typeof options.trigger === 'string' ? options.trigger.split(' ').filter(function (trigger) {
        return ['click', 'hover', 'focus'].indexOf(trigger) !== -1;
      }) : []; // set initial state

      this._isOpen = false; // set event listeners

      this._setEventListeners(reference, events, options);
    } //
    // Public methods
    //

    /**
     * Reveals an element's tooltip. This is considered a "manual" triggering of the tooltip.
     * Tooltips with zero-length titles are never displayed.
     * @method Tooltip#show
     * @memberof Tooltip
     */

    /**
     * Hides an element’s tooltip. This is considered a “manual” triggering of the tooltip.
     * @method Tooltip#hide
     * @memberof Tooltip
     */

    /**
     * Hides and destroys an element’s tooltip.
     * @method Tooltip#dispose
     * @memberof Tooltip
     */

    /**
     * Toggles an element’s tooltip. This is considered a “manual” triggering of the tooltip.
     * @method Tooltip#toggle
     * @memberof Tooltip
     */
    //
    // Defaults
    //
    //
    // Private methods
    //


    createClass(Tooltip, [{
      key: '_create',

      /**
       * Creates a new tooltip node
       * @memberof Tooltip
       * @private
       * @param {HTMLElement} reference
       * @param {String} template
       * @param {String|HTMLElement|TitleFunction} title
       * @param {Boolean} allowHtml
       * @return {HTMLelement} tooltipNode
       */
      value: function _create(reference, template, title, allowHtml) {
        // create tooltip element
        var tooltipGenerator = window.document.createElement('div');
        tooltipGenerator.innerHTML = template.trim();
        var tooltipNode = tooltipGenerator.childNodes[0]; // add unique ID to our tooltip (needed for accessibility reasons)

        tooltipNode.id = 'tooltip_' + Math.random().toString(36).substr(2, 10); // set initial `aria-hidden` state to `false` (it's visible!)

        tooltipNode.setAttribute('aria-hidden', 'false'); // add title to tooltip

        var titleNode = tooltipGenerator.querySelector(this.innerSelector);

        if (title.nodeType === 1) {
          // if title is a node, append it only if allowHtml is true
          allowHtml && titleNode.appendChild(title);
        } else if (isFunction(title)) {
          // if title is a function, call it and set innerText or innerHtml depending by `allowHtml` value
          var titleText = title.call(reference);
          allowHtml ? titleNode.innerHTML = titleText : titleNode.innerText = titleText;
        } else {
          // if it's just a simple text, set innerText or innerHtml depending by `allowHtml` value
          allowHtml ? titleNode.innerHTML = title : titleNode.innerText = title;
        } // return the generated tooltip node


        return tooltipNode;
      }
    }, {
      key: '_show',
      value: function _show(reference, options) {
        // don't show if it's already visible
        if (this._isOpen) {
          return this;
        }

        this._isOpen = true; // if the tooltipNode already exists, just show it

        if (this._tooltipNode) {
          this._tooltipNode.style.display = '';

          this._tooltipNode.setAttribute('aria-hidden', 'false');

          this.popperInstance.update();
          return this;
        } // get title


        var title = reference.getAttribute('title') || options.title; // don't show tooltip if no title is defined

        if (!title) {
          return this;
        } // create tooltip node


        var tooltipNode = this._create(reference, options.template, title, options.html); // Add `aria-describedby` to our reference element for accessibility reasons


        reference.setAttribute('aria-describedby', tooltipNode.id); // append tooltip to container

        var container = this._findContainer(options.container, reference);

        this._append(tooltipNode, container);

        var popperOptions = _extends({}, options.popperOptions, {
          placement: options.placement
        });

        popperOptions.modifiers = _extends({}, popperOptions.modifiers, {
          arrow: {
            element: this.arrowSelector
          }
        });

        if (options.boundariesElement) {
          popperOptions.modifiers.preventOverflow = {
            boundariesElement: options.boundariesElement
          };
        }

        this.popperInstance = new Popper(reference, tooltipNode, popperOptions);
        this._tooltipNode = tooltipNode;
        return this;
      }
    }, {
      key: '_hide',
      value: function _hide()
      /*reference, options*/
      {
        // don't hide if it's already hidden
        if (!this._isOpen) {
          return this;
        }

        this._isOpen = false; // hide tooltipNode

        this._tooltipNode.style.display = 'none';

        this._tooltipNode.setAttribute('aria-hidden', 'true');

        return this;
      }
    }, {
      key: '_dispose',
      value: function _dispose() {
        var _this = this;

        if (this._tooltipNode) {
          this._hide(); // destroy instance


          this.popperInstance.destroy(); // remove event listeners

          this._events.forEach(function (_ref) {
            var func = _ref.func,
                event = _ref.event;

            _this.reference.removeEventListener(event, func);
          });

          this._events = []; // destroy tooltipNode

          this._tooltipNode.parentNode.removeChild(this._tooltipNode);

          this._tooltipNode = null;
        }

        return this;
      }
    }, {
      key: '_findContainer',
      value: function _findContainer(container, reference) {
        // if container is a query, get the relative element
        if (typeof container === 'string') {
          container = window.document.querySelector(container);
        } else if (container === false) {
          // if container is `false`, set it to reference parent
          container = reference.parentNode;
        }

        return container;
      }
      /**
       * Append tooltip to container
       * @memberof Tooltip
       * @private
       * @param {HTMLElement} tooltip
       * @param {HTMLElement|String|false} container
       */

    }, {
      key: '_append',
      value: function _append(tooltipNode, container) {
        container.appendChild(tooltipNode);
      }
    }, {
      key: '_setEventListeners',
      value: function _setEventListeners(reference, events, options) {
        var _this2 = this;

        var directEvents = [];
        var oppositeEvents = [];
        events.forEach(function (event) {
          switch (event) {
            case 'hover':
              directEvents.push('mouseenter');
              oppositeEvents.push('mouseleave');
              break;

            case 'focus':
              directEvents.push('focus');
              oppositeEvents.push('blur');
              break;

            case 'click':
              directEvents.push('click');
              oppositeEvents.push('click');
              break;
          }
        }); // schedule show tooltip

        directEvents.forEach(function (event) {
          var func = function func(evt) {
            if (_this2._isOpen === true) {
              return;
            }

            evt.usedByTooltip = true;

            _this2._scheduleShow(reference, options.delay, options, evt);
          };

          _this2._events.push({
            event: event,
            func: func
          });

          reference.addEventListener(event, func);
        }); // schedule hide tooltip

        oppositeEvents.forEach(function (event) {
          var func = function func(evt) {
            if (evt.usedByTooltip === true) {
              return;
            }

            _this2._scheduleHide(reference, options.delay, options, evt);
          };

          _this2._events.push({
            event: event,
            func: func
          });

          reference.addEventListener(event, func);
        });
      }
    }, {
      key: '_scheduleShow',
      value: function _scheduleShow(reference, delay, options
      /*, evt */
      ) {
        var _this3 = this; // defaults to 0


        var computedDelay = delay && delay.show || delay || 0;
        window.setTimeout(function () {
          return _this3._show(reference, options);
        }, computedDelay);
      }
    }, {
      key: '_scheduleHide',
      value: function _scheduleHide(reference, delay, options, evt) {
        var _this4 = this; // defaults to 0


        var computedDelay = delay && delay.hide || delay || 0;
        window.setTimeout(function () {
          if (_this4._isOpen === false) {
            return;
          }

          if (!document.body.contains(_this4._tooltipNode)) {
            return;
          } // if we are hiding because of a mouseleave, we must check that the new
          // reference isn't the tooltip, because in this case we don't want to hide it


          if (evt.type === 'mouseleave') {
            var isSet = _this4._setTooltipNodeEvent(evt, reference, delay, options); // if we set the new event, don't hide the tooltip yet
            // the new event will take care to hide it if necessary


            if (isSet) {
              return;
            }
          }

          _this4._hide(reference, options);
        }, computedDelay);
      }
    }]);
    return Tooltip;
  }();
  /**
   * Placement function, its context is the Tooltip instance.
   * @memberof Tooltip
   * @callback PlacementFunction
   * @param {HTMLElement} tooltip - tooltip DOM node.
   * @param {HTMLElement} reference - reference DOM node.
   * @return {String} placement - One of the allowed placement options.
   */

  /**
   * Title function, its context is the Tooltip instance.
   * @memberof Tooltip
   * @callback TitleFunction
   * @return {String} placement - The desired title.
   */


  var _initialiseProps = function _initialiseProps() {
    var _this5 = this;

    this.show = function () {
      return _this5._show(_this5.reference, _this5.options);
    };

    this.hide = function () {
      return _this5._hide();
    };

    this.dispose = function () {
      return _this5._dispose();
    };

    this.toggle = function () {
      if (_this5._isOpen) {
        return _this5.hide();
      } else {
        return _this5.show();
      }
    };

    this.arrowSelector = '.tooltip-arrow, .tooltip__arrow';
    this.innerSelector = '.tooltip-inner, .tooltip__inner';
    this._events = [];

    this._setTooltipNodeEvent = function (evt, reference, delay, options) {
      var relatedreference = evt.relatedreference || evt.toElement;

      var callback = function callback(evt2) {
        var relatedreference2 = evt2.relatedreference || evt2.toElement; // Remove event listener after call

        _this5._tooltipNode.removeEventListener(evt.type, callback); // If the new reference is not the reference element


        if (!reference.contains(relatedreference2)) {
          // Schedule to hide tooltip
          _this5._scheduleHide(reference, options.delay, options, evt2);
        }
      };

      if (_this5._tooltipNode.contains(relatedreference)) {
        // listen to mouseleave on the tooltip element to be able to hide the tooltip
        _this5._tooltipNode.addEventListener(evt.type, callback);

        return true;
      }

      return false;
    };
  };

  return Tooltip;
});
//# sourceMappingURL=tooltip.js.map