tooltip.js

/* global Tether */

'use strict';

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'); } }

/**
 * --------------------------------------------------------------------------
 * Bootstrap (v4.0.0): tooltip.js
 * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
 * --------------------------------------------------------------------------
 */

var Tooltip = (function ($) {

  /**
   * ------------------------------------------------------------------------
   * Constants
   * ------------------------------------------------------------------------
   */

  var NAME = 'tooltip';
  var VERSION = '4.0.0';
  var DATA_KEY = 'bs.tooltip';
  var EVENT_KEY = '.' + DATA_KEY;
  var JQUERY_NO_CONFLICT = $.fn[NAME];
  var TRANSITION_DURATION = 150;
  var CLASS_PREFIX = 'bs-tether';

  var Default = {
    animation: true,
    template: '<div class="tooltip" role="tooltip">' + '<div class="tooltip-arrow"></div>' + '<div class="tooltip-inner"></div></div>',
    trigger: 'hover focus',
    title: '',
    delay: 0,
    html: false,
    selector: false,
    placement: 'top',
    offset: '0 0',
    constraints: []
  };

  var DefaultType = {
    animation: 'boolean',
    template: 'string',
    title: '(string|element|function)',
    trigger: 'string',
    delay: '(number|object)',
    html: 'boolean',
    selector: '(string|boolean)',
    placement: '(string|function)',
    offset: 'string',
    constraints: 'array'
  };

  var AttachmentMap = {
    TOP: 'bottom center',
    RIGHT: 'middle left',
    BOTTOM: 'top center',
    LEFT: 'middle right'
  };

  var HoverState = {
    IN: 'in',
    OUT: 'out'
  };

  var Event = {
    HIDE: 'hide' + EVENT_KEY,
    HIDDEN: 'hidden' + EVENT_KEY,
    SHOW: 'show' + EVENT_KEY,
    SHOWN: 'shown' + EVENT_KEY,
    INSERTED: 'inserted' + EVENT_KEY,
    CLICK: 'click' + EVENT_KEY,
    FOCUSIN: 'focusin' + EVENT_KEY,
    FOCUSOUT: 'focusout' + EVENT_KEY,
    MOUSEENTER: 'mouseenter' + EVENT_KEY,
    MOUSELEAVE: 'mouseleave' + EVENT_KEY
  };

  var ClassName = {
    FADE: 'fade',
    IN: 'in'
  };

  var Selector = {
    TOOLTIP: '.tooltip',
    TOOLTIP_INNER: '.tooltip-inner'
  };

  var TetherClass = {
    element: false,
    enabled: false
  };

  var Trigger = {
    HOVER: 'hover',
    FOCUS: 'focus',
    CLICK: 'click',
    MANUAL: 'manual'
  };

  /**
   * ------------------------------------------------------------------------
   * Class Definition
   * ------------------------------------------------------------------------
   */

  var Tooltip = (function () {
    function Tooltip(element, config) {
      _classCallCheck(this, Tooltip);

      // private
      this._isEnabled = true;
      this._timeout = 0;
      this._hoverState = '';
      this._activeTrigger = {};
      this._tether = null;

      // protected
      this.element = element;
      this.config = this._getConfig(config);
      this.tip = null;

      this._setListeners();
    }

    /**
     * ------------------------------------------------------------------------
     * jQuery
     * ------------------------------------------------------------------------
     */

    // getters

    _createClass(Tooltip, [{
      key: 'enable',

      // public

      value: function enable() {
        this._isEnabled = true;
      }
    }, {
      key: 'disable',
      value: function disable() {
        this._isEnabled = false;
      }
    }, {
      key: 'toggleEnabled',
      value: function toggleEnabled() {
        this._isEnabled = !this._isEnabled;
      }
    }, {
      key: 'toggle',
      value: function toggle(event) {
        if (event) {
          var dataKey = this.constructor.DATA_KEY;
          var context = $(event.currentTarget).data(dataKey);

          if (!context) {
            context = new this.constructor(event.currentTarget, this._getDelegateConfig());
            $(event.currentTarget).data(dataKey, context);
          }

          context._activeTrigger.click = !context._activeTrigger.click;

          if (context._isWithActiveTrigger()) {
            context._enter(null, context);
          } else {
            context._leave(null, context);
          }
        } else {

          if ($(this.getTipElement()).hasClass(ClassName.IN)) {
            this._leave(null, this);
            return;
          }

          this._enter(null, this);
        }
      }
    }, {
      key: 'dispose',
      value: function dispose() {
        clearTimeout(this._timeout);

        this.cleanupTether();

        $.removeData(this.element, this.constructor.DATA_KEY);

        $(this.element).off(this.constructor.EVENT_KEY);

        if (this.tip) {
          $(this.tip).remove();
        }

        this._isEnabled = null;
        this._timeout = null;
        this._hoverState = null;
        this._activeTrigger = null;
        this._tether = null;

        this.element = null;
        this.config = null;
        this.tip = null;
      }
    }, {
      key: 'show',
      value: function show() {
        var _this = this;

        var showEvent = $.Event(this.constructor.Event.SHOW);

        if (this.isWithContent() && this._isEnabled) {
          $(this.element).trigger(showEvent);

          var isInTheDom = $.contains(this.element.ownerDocument.documentElement, this.element);

          if (showEvent.isDefaultPrevented() || !isInTheDom) {
            return;
          }

          var tip = this.getTipElement();
          var tipId = Util.getUID(this.constructor.NAME);

          tip.setAttribute('id', tipId);
          this.element.setAttribute('aria-describedby', tipId);

          this.setContent();

          if (this.config.animation) {
            $(tip).addClass(ClassName.FADE);
          }

          var placement = typeof this.config.placement === 'function' ? this.config.placement.call(this, tip, this.element) : this.config.placement;

          var attachment = this._getAttachment(placement);

          $(tip).data(this.constructor.DATA_KEY, this).appendTo(document.body);

          $(this.element).trigger(this.constructor.Event.INSERTED);

          this._tether = new Tether({
            attachment: attachment,
            element: tip,
            target: this.element,
            classes: TetherClass,
            classPrefix: CLASS_PREFIX,
            offset: this.config.offset,
            constraints: this.config.constraints,
            addTargetClasses: false
          });

          Util.reflow(tip);
          this._tether.position();

          $(tip).addClass(ClassName.IN);

          var complete = function complete() {
            var prevHoverState = _this._hoverState;
            _this._hoverState = null;

            $(_this.element).trigger(_this.constructor.Event.SHOWN);

            if (prevHoverState === HoverState.OUT) {
              _this._leave(null, _this);
            }
          };

          if (Util.supportsTransitionEnd() && $(this.tip).hasClass(ClassName.FADE)) {
            $(this.tip).one(Util.TRANSITION_END, complete).emulateTransitionEnd(Tooltip._TRANSITION_DURATION);
            return;
          }

          complete();
        }
      }
    }, {
      key: 'hide',
      value: function hide(callback) {
        var _this2 = this;

        var tip = this.getTipElement();
        var hideEvent = $.Event(this.constructor.Event.HIDE);
        var complete = function complete() {
          if (_this2._hoverState !== HoverState.IN && tip.parentNode) {
            tip.parentNode.removeChild(tip);
          }

          _this2.element.removeAttribute('aria-describedby');
          $(_this2.element).trigger(_this2.constructor.Event.HIDDEN);
          _this2.cleanupTether();

          if (callback) {
            callback();
          }
        };

        $(this.element).trigger(hideEvent);

        if (hideEvent.isDefaultPrevented()) {
          return;
        }

        $(tip).removeClass(ClassName.IN);

        if (Util.supportsTransitionEnd() && $(this.tip).hasClass(ClassName.FADE)) {

          $(tip).one(Util.TRANSITION_END, complete).emulateTransitionEnd(TRANSITION_DURATION);
        } else {
          complete();
        }

        this._hoverState = '';
      }

      // protected

    }, {
      key: 'isWithContent',
      value: function isWithContent() {
        return Boolean(this.getTitle());
      }
    }, {
      key: 'getTipElement',
      value: function getTipElement() {
        return this.tip = this.tip || $(this.config.template)[0];
      }
    }, {
      key: 'setContent',
      value: function setContent() {
        var $tip = $(this.getTipElement());

        this.setElementContent($tip.find(Selector.TOOLTIP_INNER), this.getTitle());

        $tip.removeClass(ClassName.FADE).removeClass(ClassName.IN);

        this.cleanupTether();
      }
    }, {
      key: 'setElementContent',
      value: function setElementContent($element, content) {
        var html = this.config.html;
        if (typeof content === 'object' && (content.nodeType || content.jquery)) {
          // content is a DOM node or a jQuery
          if (html) {
            if (!$(content).parent().is($element)) {
              $element.empty().append(content);
            }
          } else {
            $element.text($(content).text());
          }
        } else {
          $element[html ? 'html' : 'text'](content);
        }
      }
    }, {
      key: 'getTitle',
      value: function getTitle() {
        var title = this.element.getAttribute('data-original-title');

        if (!title) {
          title = typeof this.config.title === 'function' ? this.config.title.call(this.element) : this.config.title;
        }

        return title;
      }
    }, {
      key: 'cleanupTether',
      value: function cleanupTether() {
        if (this._tether) {
          this._tether.destroy();
        }
      }

      // private

    }, {
      key: '_getAttachment',
      value: function _getAttachment(placement) {
        return AttachmentMap[placement.toUpperCase()];
      }
    }, {
      key: '_setListeners',
      value: function _setListeners() {
        var _this3 = this;

        var triggers = this.config.trigger.split(' ');

        triggers.forEach(function (trigger) {
          if (trigger === 'click') {
            $(_this3.element).on(_this3.constructor.Event.CLICK, _this3.config.selector, $.proxy(_this3.toggle, _this3));
          } else if (trigger !== Trigger.MANUAL) {
            var eventIn = trigger === Trigger.HOVER ? _this3.constructor.Event.MOUSEENTER : _this3.constructor.Event.FOCUSIN;
            var eventOut = trigger === Trigger.HOVER ? _this3.constructor.Event.MOUSELEAVE : _this3.constructor.Event.FOCUSOUT;

            $(_this3.element).on(eventIn, _this3.config.selector, $.proxy(_this3._enter, _this3)).on(eventOut, _this3.config.selector, $.proxy(_this3._leave, _this3));
          }
        });

        if (this.config.selector) {
          this.config = $.extend({}, this.config, {
            trigger: 'manual',
            selector: ''
          });
        } else {
          this._fixTitle();
        }
      }
    }, {
      key: '_fixTitle',
      value: function _fixTitle() {
        var titleType = typeof this.element.getAttribute('data-original-title');
        if (this.element.getAttribute('title') || titleType !== 'string') {
          this.element.setAttribute('data-original-title', this.element.getAttribute('title') || '');
          this.element.setAttribute('title', '');
        }
      }
    }, {
      key: '_enter',
      value: function _enter(event, context) {
        var dataKey = this.constructor.DATA_KEY;

        context = context || $(event.currentTarget).data(dataKey);

        if (!context) {
          context = new this.constructor(event.currentTarget, this._getDelegateConfig());
          $(event.currentTarget).data(dataKey, context);
        }

        if (event) {
          context._activeTrigger[event.type === 'focusin' ? Trigger.FOCUS : Trigger.HOVER] = true;
        }

        if ($(context.getTipElement()).hasClass(ClassName.IN) || context._hoverState === HoverState.IN) {
          context._hoverState = HoverState.IN;
          return;
        }

        clearTimeout(context._timeout);

        context._hoverState = HoverState.IN;

        if (!context.config.delay || !context.config.delay.show) {
          context.show();
          return;
        }

        context._timeout = setTimeout(function () {
          if (context._hoverState === HoverState.IN) {
            context.show();
          }
        }, context.config.delay.show);
      }
    }, {
      key: '_leave',
      value: function _leave(event, context) {
        var dataKey = this.constructor.DATA_KEY;

        context = context || $(event.currentTarget).data(dataKey);

        if (!context) {
          context = new this.constructor(event.currentTarget, this._getDelegateConfig());
          $(event.currentTarget).data(dataKey, context);
        }

        if (event) {
          context._activeTrigger[event.type === 'focusout' ? Trigger.FOCUS : Trigger.HOVER] = false;
        }

        if (context._isWithActiveTrigger()) {
          return;
        }

        clearTimeout(context._timeout);

        context._hoverState = HoverState.OUT;

        if (!context.config.delay || !context.config.delay.hide) {
          context.hide();
          return;
        }

        context._timeout = setTimeout(function () {
          if (context._hoverState === HoverState.OUT) {
            context.hide();
          }
        }, context.config.delay.hide);
      }
    }, {
      key: '_isWithActiveTrigger',
      value: function _isWithActiveTrigger() {
        for (var trigger in this._activeTrigger) {
          if (this._activeTrigger[trigger]) {
            return true;
          }
        }

        return false;
      }
    }, {
      key: '_getConfig',
      value: function _getConfig(config) {
        config = $.extend({}, this.constructor.Default, $(this.element).data(), config);

        if (config.delay && typeof config.delay === 'number') {
          config.delay = {
            show: config.delay,
            hide: config.delay
          };
        }

        Util.typeCheckConfig(NAME, config, this.constructor.DefaultType);

        return config;
      }
    }, {
      key: '_getDelegateConfig',
      value: function _getDelegateConfig() {
        var config = {};

        if (this.config) {
          for (var key in this.config) {
            if (this.constructor.Default[key] !== this.config[key]) {
              config[key] = this.config[key];
            }
          }
        }

        return config;
      }

      // static

    }], [{
      key: '_jQueryInterface',
      value: function _jQueryInterface(config) {
        return this.each(function () {
          var data = $(this).data(DATA_KEY);
          var _config = typeof config === 'object' ? config : null;

          if (!data && /destroy|hide/.test(config)) {
            return;
          }

          if (!data) {
            data = new Tooltip(this, _config);
            $(this).data(DATA_KEY, data);
          }

          if (typeof config === 'string') {
            if (data[config] === undefined) {
              throw new Error('No method named "' + config + '"');
            }
            data[config]();
          }
        });
      }
    }, {
      key: 'VERSION',
      get: function get() {
        return VERSION;
      }
    }, {
      key: 'Default',
      get: function get() {
        return Default;
      }
    }, {
      key: 'NAME',
      get: function get() {
        return NAME;
      }
    }, {
      key: 'DATA_KEY',
      get: function get() {
        return DATA_KEY;
      }
    }, {
      key: 'Event',
      get: function get() {
        return Event;
      }
    }, {
      key: 'EVENT_KEY',
      get: function get() {
        return EVENT_KEY;
      }
    }, {
      key: 'DefaultType',
      get: function get() {
        return DefaultType;
      }
    }]);

    return Tooltip;
  })();

  $.fn[NAME] = Tooltip._jQueryInterface;
  $.fn[NAME].Constructor = Tooltip;
  $.fn[NAME].noConflict = function () {
    $.fn[NAME] = JQUERY_NO_CONFLICT;
    return Tooltip._jQueryInterface;
  };

  return Tooltip;
})(jQuery);
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