function hammered(Hammered) {
  return function hammer(chart, mediator, element) {
    let settings;
    let instance;
    let mc;
    let key;
    let hammerGestures = [];
    let isOn = true;
    /**
     * Set default settings
     * @private
     */
    function setDefaultSettings(newSettings) {
      key = newSettings.key; //eslint-disable-line
      settings = newSettings;
      instance = { chart, mediator, settings };
      settings.gestures = settings.gestures || [];
      if (settings.enable === undefined) {
        settings.enable = true;
      }
    }

    /**
     * @private
     * add hammer recognizers based on settings
     */
    function addRecognizers() {
      if (typeof settings.enable === 'function') {
        settings.enable = settings.enable.bind(instance)();
      }
      if (!settings.enable) {
        return; // interaction is disabled
      }
      settings.gestures.forEach((gesture) => {
        gesture.options = gesture.options || {};
        // handle action enable
        if (gesture.options.enable === undefined) {
          gesture.options.enable = true;
        }
        if (typeof gesture.options.enable === 'function') {
          gesture.options.enable = gesture.options.enable.bind(instance);
        }
        // setup hammer gestures
        const type = getGestureType(gesture.type);
        if (Hammered && Hammered[type]) {
          gesture.options.event = gesture.options.event || gesture.type.toLowerCase();
          mc = mc || new Hammered.Manager(element);
          mc.add(new Hammered[type](gesture.options));
          Object.keys(gesture.events).forEach((eventName) => {
            gesture.events[eventName] = gesture.events[eventName].bind(instance);
            mc.on(eventName, gesture.events[eventName]);
          });
          hammerGestures.push(gesture);
        }
      });

      // setup mixing hammer gestures
      settings.gestures.forEach((gesture) => {
        const type = getGestureType(gesture.type);
        if (Hammered && Hammered[type]) {
          if (gesture.recognizeWith) {
            mc.get(gesture.options.event).recognizeWith(gesture.recognizeWith.split(' ').filter((e) => e !== ''));
          }
          if (gesture.requireFailure) {
            mc.get(gesture.options.event).requireFailure(gesture.requireFailure.split(' ').filter((e) => e !== ''));
          }
        }
      });
    }
    /**
     * @private
     * removes all added hammer recognizers and native events
     */
    function removeAddedEvents() {
      // remove hammer recognizers and registered events
      hammerGestures.forEach((gesture) => {
        Object.keys(gesture.events).forEach((eventName) => {
          mc.off(eventName, gesture.events[eventName]);
        });
        mc.remove(gesture.options.event);
      });
      hammerGestures = [];
    }

    return {
      /**
       * Getter for the key.
       */
      get key() {
        return key;
      },
      /**
       * Updates this with new settings
       * @typedef settings
       * @type {object}
       * @property {string} [type] - The interaction type. Is 'hammer' for this component
       * @property {boolean|function} [enable] - Should the interaction be enabled or not.
       * This is only run when adding event handlers. In effect at startup, update or during on/off.
       * It does not run during every event loop.
       * @property {object} [events] - The keys in this object is the names of native events
       * that should be added to the chart element and they should all point to function which
       * will be the corresponding event handler.
       */
      set(newSettings) {
        setDefaultSettings(newSettings);
        removeAddedEvents();
        if (isOn) {
          addRecognizers();
        }
      },
      /**
       * Turns off interactions
       */
      off() {
        isOn = false;
        removeAddedEvents();
      },
      /**
       * Turns off interactions
       */
      on() {
        isOn = true;
        if (hammerGestures.length === 0) {
          addRecognizers();
        }
      },
      /**
       * Destroys and unbinds all event handlers
       */
      destroy() {
        removeAddedEvents();
        if (mc) {
          mc.destroy();
        }
        mc = null;
        instance = null;
        settings = null;
      },
    };
  };
}
/**
 * Manages event handlers for HammerJS.
 * @param {Hammer} Hammered - The Hammer instance
 */
Manages event handlers for HammerJS.
@param {Hammer} Hammered - The Hammer instance
Manages event handlers for HammerJS . @param { Hammer } Hammered - The Hammer instance
function hammered(Hammered) {
  return function hammer(chart, mediator, element) {
    let settings;
    let instance;
    let mc;
    let key;
    let hammerGestures = [];
    let isOn = true;
    function setDefaultSettings(newSettings) {
      key = newSettings.key; 
      settings = newSettings;
      instance = { chart, mediator, settings };
      settings.gestures = settings.gestures || [];
      if (settings.enable === undefined) {
        settings.enable = true;
      }
    }
    function addRecognizers() {
      if (typeof settings.enable === 'function') {
        settings.enable = settings.enable.bind(instance)();
      }
      if (!settings.enable) {
        return; 
      }
      settings.gestures.forEach((gesture) => {
        gesture.options = gesture.options || {};
        if (gesture.options.enable === undefined) {
          gesture.options.enable = true;
        }
        if (typeof gesture.options.enable === 'function') {
          gesture.options.enable = gesture.options.enable.bind(instance);
        }
        const type = getGestureType(gesture.type);
        if (Hammered && Hammered[type]) {
          gesture.options.event = gesture.options.event || gesture.type.toLowerCase();
          mc = mc || new Hammered.Manager(element);
          mc.add(new Hammered[type](gesture.options));
          Object.keys(gesture.events).forEach((eventName) => {
            gesture.events[eventName] = gesture.events[eventName].bind(instance);
            mc.on(eventName, gesture.events[eventName]);
          });
          hammerGestures.push(gesture);
        }
      });
      settings.gestures.forEach((gesture) => {
        const type = getGestureType(gesture.type);
        if (Hammered && Hammered[type]) {
          if (gesture.recognizeWith) {
            mc.get(gesture.options.event).recognizeWith(gesture.recognizeWith.split(' ').filter((e) => e !== ''));
          }
          if (gesture.requireFailure) {
            mc.get(gesture.options.event).requireFailure(gesture.requireFailure.split(' ').filter((e) => e !== ''));
          }
        }
      });
    }
    function removeAddedEvents() {
      hammerGestures.forEach((gesture) => {
        Object.keys(gesture.events).forEach((eventName) => {
          mc.off(eventName, gesture.events[eventName]);
        });
        mc.remove(gesture.options.event);
      });
      hammerGestures = [];
    }
    return {
      get key() {
        return key;
      },
      set(newSettings) {
        setDefaultSettings(newSettings);
        removeAddedEvents();
        if (isOn) {
          addRecognizers();
        }
      },
      off() {
        isOn = false;
        removeAddedEvents();
      },
      on() {
        isOn = true;
        if (hammerGestures.length === 0) {
          addRecognizers();
        }
      },
      destroy() {
        removeAddedEvents();
        if (mc) {
          mc.destroy();
        }
        mc = null;
        instance = null;
        settings = null;
      },
    };
  };
}
function hammered ( Hammered ) { return function hammer ( chart , mediator , element ) { let settings ; let instance ; let mc ; let key ; let hammerGestures = [ ] ; let isOn = true ; function setDefaultSettings ( newSettings ) { key = newSettings . key ; settings = newSettings ; instance = { chart , mediator , settings } ; settings . gestures = settings . gestures || [ ] ; if ( settings . enable === undefined ) { settings . enable = true ; } } function addRecognizers ( ) { if ( typeof settings . enable === 'function' ) { settings . enable = settings . enable . bind ( instance ) ( ) ; } if ( ! settings . enable ) { return ; } settings . gestures . forEach ( ( gesture ) => { gesture . options = gesture . options || { } ; if ( gesture . options . enable === undefined ) { gesture . options . enable = true ; } if ( typeof gesture . options . enable === 'function' ) { gesture . options . enable = gesture . options . enable . bind ( instance ) ; } const type = getGestureType ( gesture . type ) ; if ( Hammered && Hammered [ type ] ) { gesture . options . event = gesture . options . event || gesture . type . toLowerCase ( ) ; mc = mc || new Hammered . Manager ( element ) ; mc . add ( new Hammered [ type ] ( gesture . options ) ) ; Object . keys ( gesture . events ) . forEach ( ( eventName ) => { gesture . events [ eventName ] = gesture . events [ eventName ] . bind ( instance ) ; mc . on ( eventName , gesture . events [ eventName ] ) ; } ) ; hammerGestures . push ( gesture ) ; } } ) ; settings . gestures . forEach ( ( gesture ) => { const type = getGestureType ( gesture . type ) ; if ( Hammered && Hammered [ type ] ) { if ( gesture . recognizeWith ) { mc . get ( gesture . options . event ) . recognizeWith ( gesture . recognizeWith . split ( ' ' ) . filter ( ( e ) => e !== '' ) ) ; } if ( gesture . requireFailure ) { mc . get ( gesture . options . event ) . requireFailure ( gesture . requireFailure . split ( ' ' ) . filter ( ( e ) => e !== '' ) ) ; } } } ) ; } function removeAddedEvents ( ) { hammerGestures . forEach ( ( gesture ) => { Object . keys ( gesture . events ) . forEach ( ( eventName ) => { mc . off ( eventName , gesture . events [ eventName ] ) ; } ) ; mc . remove ( gesture . options . event ) ; } ) ; hammerGestures = [ ] ; } return { get key ( ) { return key ; } , set ( newSettings ) { setDefaultSettings ( newSettings ) ; removeAddedEvents ( ) ; if ( isOn ) { addRecognizers ( ) ; } } , off ( ) { isOn = false ; removeAddedEvents ( ) ; } , on ( ) { isOn = true ; if ( hammerGestures . length === 0 ) { addRecognizers ( ) ; } } , destroy ( ) { removeAddedEvents ( ) ; if ( mc ) { mc . destroy ( ) ; } mc = null ; instance = null ; settings = null ; } , } ; } ; }
Manages event handlers for HammerJS.
Manages event handlers for HammerJS .
/**
     * Set default settings
     * @private
     */ //eslint-disable-line /**
     * @private
     * add hammer recognizers based on settings
     */ // interaction is disabled // handle action enable // setup hammer gestures // setup mixing hammer gestures /**
     * @private
     * removes all added hammer recognizers and native events
     */ // remove hammer recognizers and registered events /**
       * Getter for the key.
       */ /**
       * Updates this with new settings
       * @typedef settings
       * @type {object}
       * @property {string} [type] - The interaction type. Is 'hammer' for this component
       * @property {boolean|function} [enable] - Should the interaction be enabled or not.
       * This is only run when adding event handlers. In effect at startup, update or during on/off.
       * It does not run during every event loop.
       * @property {object} [events] - The keys in this object is the names of native events
       * that should be added to the chart element and they should all point to function which
       * will be the corresponding event handler.
       */ /**
       * Turns off interactions
       */ /**
       * Turns off interactions
       */ /**
       * Destroys and unbinds all event handlers
       */