function checkExclusions()

in datawig-js/static/jspsych-6.1.0/jspsych.js [950:998]
46 lines of code
15 McCabe index (conditional complexity)

  function checkExclusions(exclusions, success, fail){
    var clear = true;

    // MINIMUM SIZE
    if(typeof exclusions.min_width !== 'undefined' || typeof exclusions.min_height !== 'undefined'){
      var mw = typeof exclusions.min_width !== 'undefined' ? exclusions.min_width : 0;
      var mh = typeof exclusions.min_height !== 'undefined' ? exclusions.min_height : 0;
      var w = window.innerWidth;
      var h = window.innerHeight;
      if(w < mw || h < mh){
        clear = false;
        var interval = setInterval(function(){
          var w = window.innerWidth;
          var h = window.innerHeight;
          if(w < mw || h < mh){
            var msg = '<p>Your browser window is too small to complete this experiment. '+
              'Please maximize the size of your browser window. If your browser window is already maximized, '+
              'you will not be able to complete this experiment.</p>'+
              '<p>The minimum width is '+mw+'px. Your current width is '+w+'px.</p>'+
              '<p>The minimum height is '+mh+'px. Your current height is '+h+'px.</p>';
            core.getDisplayElement().innerHTML = msg;
          } else {
            clearInterval(interval);
            core.getDisplayElement().innerHTML = '';
            checkExclusions(exclusions, success, fail);
          }
        }, 100);
        return; // prevents checking other exclusions while this is being fixed
      }
    }

    // WEB AUDIO API
    if(typeof exclusions.audio !== 'undefined' && exclusions.audio) {
      if(window.hasOwnProperty('AudioContext') || window.hasOwnProperty('webkitAudioContext')){
        // clear
      } else {
        clear = false;
        var msg = '<p>Your browser does not support the WebAudio API, which means that you will not '+
          'be able to complete the experiment.</p><p>Browsers that support the WebAudio API include '+
          'Chrome, Firefox, Safari, and Edge.</p>';
        core.getDisplayElement().innerHTML = msg;
        fail();
        return;
      }
    }

    // GO?
    if(clear){ success(); }
  }