js/lib/hammer.js
function detect(eventData) {
    if(!this.current || this.stopped) {
      return;
    }

    // extend event data with calculations about scale, distance etc
    eventData = this.extendEventData(eventData);

    // instance options
    var inst_options = this.current.inst.options;

    // call Hammer.gesture handlers
    Hammer.utils.each(this.gestures, function(gesture) {
      // only when the instance options have enabled this gesture
      if(!this.stopped && inst_options[gesture.name] !== false) {
        // if a handler returns false, we stop with the detection
        if(gesture.handler.call(gesture, eventData, this.current.inst) === false) {
          this.stopDetect();
          return false;
        }
      }
    }, this);

    // store as previous event event
    if(this.current) {
      this.current.lastEvent = eventData;
    }

    // endevent, but not the last touch, so dont stop
    if(eventData.eventType == Hammer.EVENT_END && !eventData.touches.length - 1) {
      this.stopDetect();
    }

    return eventData;
  }
function detect(eventData) {
    if(!this.current || this.stopped) {
      return;
    }

    // extend event data with calculations about scale, distance etc
    eventData = this.extendEventData(eventData);

    // instance options
    var inst_options = this.current.inst.options;

    // call Hammer.gesture handlers
    Hammer.utils.each(this.gestures, function(gesture) {
      // only when the instance options have enabled this gesture
      if(!this.stopped && inst_options[gesture.name] !== false) {
        // if a handler returns false, we stop with the detection
        if(gesture.handler.call(gesture, eventData, this.current.inst) === false) {
          this.stopDetect();
          return false;
        }
      }
    }, this);

    // store as previous event event
    if(this.current) {
      this.current.lastEvent = eventData;
    }

    // endevent, but not the last touch, so dont stop
    if(eventData.eventType == Hammer.EVENT_END && !eventData.touches.length - 1) {
      this.stopDetect();
    }

    return eventData;
  }
function detect ( eventData ) { if ( ! this . current || this . stopped ) { return ; } // extend event data with calculations about scale, distance etc eventData = this . extendEventData ( eventData ) ; // instance options var inst_options = this . current . inst . options ; // call Hammer.gesture handlers Hammer . utils . each ( this . gestures , function ( gesture ) { // only when the instance options have enabled this gesture if ( ! this . stopped && inst_options [ gesture . name ] !== false ) { // if a handler returns false, we stop with the detection if ( gesture . handler . call ( gesture , eventData , this . current . inst ) === false ) { this . stopDetect ( ) ; return false ; } } } , this ) ; // store as previous event event if ( this . current ) { this . current . lastEvent = eventData ; } // endevent, but not the last touch, so dont stop if ( eventData . eventType == Hammer . EVENT_END && ! eventData . touches . length - 1 ) { this . stopDetect ( ) ; } return eventData ; }
Hammer.gesture detection
@param   {Object}    eventData
Hammer . gesture detection