MobileRangeSlider.prototype.handle = function()

in ArticleTemplates/assets/js/modules/mobile-range-slider.js [218:245]

• 22 lines of code
• 3 McCabe index (conditional complexity)

  MobileRangeSlider.prototype.handle = function(event){
    event.preventDefault();
    if (event.targetTouches){ event = event.targetTouches[0]; }
  
    var position = event.pageX, 
      element,
      knobWidth = this.knob.offsetWidth,
      trackWidth = this.track.offsetWidth,
      width = trackWidth - knobWidth,
      range = this.options.max - this.options.min,
      value;
      
    for (element = this.element; element; element = element.offsetParent){
      position -= element.offsetLeft;
    }
    
    // keep knob in the bounds
    position += knobWidth / 2;
    position = Math.min(position, trackWidth);
    position = Math.max(position - knobWidth, 0);
  
    this.setKnobPosition(position);
    this.setTrackPosition(position);
  
    // update
    value = this.options.min + Math.round(position * range / width);
    this.setValue(value);
  };