updateColorRangeByColorUI()

in src/layers/base-layer.js [623:661]

• 31 lines of code
• 12 McCabe index (conditional complexity)

  updateColorRangeByColorUI(newConfig, previous, prop) {
    // only update colorRange if changes in UI is made to 'reversed', 'steps' or steps
    const shouldUpdate =
      newConfig.colorRangeConfig &&
      ['reversed', 'steps'].some(
        key =>
          newConfig.colorRangeConfig.hasOwnProperty(key) &&
          newConfig.colorRangeConfig[key] !==
            (previous[prop] || DEFAULT_COLOR_UI).colorRangeConfig[key]
      );
    if (!shouldUpdate) return;

    const {colorUI, visConfig} = this.config;
    const {steps, reversed} = colorUI[prop].colorRangeConfig;
    const colorRange = visConfig[prop];
    // find based on step or reversed
    let update;
    if (newConfig.colorRangeConfig.hasOwnProperty('steps')) {
      const group = getColorGroupByName(colorRange);

      if (group) {
        const sameGroup = COLOR_RANGES.filter(cr => getColorGroupByName(cr) === group);

        update = sameGroup.find(cr => cr.colors.length === steps);

        if (update && colorRange.reversed) {
          update = reverseColorRange(true, update);
        }
      }
    }

    if (newConfig.colorRangeConfig.hasOwnProperty('reversed')) {
      update = reverseColorRange(reversed, update || colorRange);
    }

    if (update) {
      this.updateLayerVisConfig({[prop]: update});
    }
  }