Method _setExpectLayerLen

src/common/mapping/WebMapV2.js:240–254

(mapInfo)

    }

    _setExpectLayerLen(mapInfo) {
      if (this._shouldLoadBaseLayer(mapInfo, this.layerFilter)) {
        this.expectLayerLen++;
      }
      let overLayers = mapInfo.layers;
      if (overLayers && overLayers.length > 0) {
        if (typeof this.layerFilter === 'function') {
          overLayers = overLayers.filter(this.layerFilter);
        }
        this.expectLayerLen += overLayers.length;
      }
      if (mapInfo.grid && mapInfo.grid.graticule) {
        this.expectLayerLen++;
      }
    }

    _shouldLoadBaseLayer(mapInfo, layerFilter) {
      const baseLayer = mapInfo.baseLayer;