updateState()

in modules/core/src/layers/xviz-layer.js [262:289]

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

  updateState({props, oldProps, changeFlags}) {
    let {type} = this.state;

    if (changeFlags.dataChanged) {
      // Pre-process data
      let data = props.data;
      const dataType = this._getLayerType(data);
      type = XVIZ_TO_LAYER_TYPE[dataType];

      if (type === 'scatterplot' && data[0].vertices && Array.isArray(data[0].vertices[0])) {
        // is multi point
        data = data.reduce((arr, multiPoints) => {
          multiPoints.vertices.forEach(pt => {
            arr.push({...multiPoints, vertices: pt});
          });
          return arr;
        }, []);
      }

      this.setState({data});
    }

    if (type !== this.state.type || props.style !== oldProps.style) {
      const styleToLayerProp = STYLE_TO_LAYER_PROP[type];
      const layerProps = this._getDefaultLayerProps(props.style, styleToLayerProp);
      this.setState({type, layerProps});
    }
  }