Function logEvents

chapter18/docs/d3-graphviz.js:1359–1414

(enable)

  }

  function logEvents (enable) {
    var _this = this;
    var t0 = Date.now();
    var times = {};
    var eventTypes = this._eventTypes;
    var maxEventTypeLength = Math.max.apply(Math, _toConsumableArray(eventTypes.map(function (eventType) {
      return eventType.length;
    })));
    var _loop = function _loop(i) {
        var eventType = eventTypes[i];
        times[eventType] = [];
        graphvizInstance = _this;
        _this.on(eventType + '.log', enable ? function () {
          var t = Date.now();
          var seqNo = times[eventType].length;
          times[eventType].push(t);
          var string = '';
          string += 'Event ';
          string += d3Format.format(' >2')(i) + ' ';
          string += eventType + ' '.repeat(maxEventTypeLength - eventType.length);
          string += d3Format.format(' >5')(t - t0) + ' ';
          if (eventType != 'initEnd') {
            string += d3Format.format(' >5')(t - times['start'][seqNo]);
          }
          if (eventType == 'dataProcessEnd') {
            string += ' prepare                 ' + d3Format.format(' >5')(t - times['layoutEnd'][seqNo]);
          }
          if (eventType == 'renderEnd' && graphvizInstance._transition) {
            string += ' transition start margin ' + d3Format.format(' >5')(graphvizInstance._transition.delay() - (t - times['renderStart'][seqNo]));
            expectedDelay = graphvizInstance._transition.delay();
            expectedDuration = graphvizInstance._transition.duration();
          }
          if (eventType == 'transitionStart') {
            var actualDelay = t - times['renderStart'][seqNo];
            string += ' transition delay        ' + d3Format.format(' >5')(t - times['renderStart'][seqNo]);
            string += ' expected ' + d3Format.format(' >5')(expectedDelay);
            string += ' diff ' + d3Format.format(' >5')(actualDelay - expectedDelay);
          }
          if (eventType == 'transitionEnd') {
            var actualDuration = t - times['transitionStart'][seqNo];
            string += ' transition duration     ' + d3Format.format(' >5')(actualDuration);
            string += ' expected ' + d3Format.format(' >5')(expectedDuration);
            string += ' diff ' + d3Format.format(' >5')(actualDuration - expectedDuration);
          }
          console.log(string);
          t0 = t;
        } : null);
      },
      graphvizInstance,
      expectedDelay,
      expectedDuration;
    for (var i = 0; i < eventTypes.length; i++) {
      _loop(i);
    }
    return this;
  }

  function destroy () {