Method _findTopLayerBeforeId

src/common/mapping/WebMapV2.js:3039–3059

(selfAppreciableLayers)

    }

    _findTopLayerBeforeId(selfAppreciableLayers) {
      // fix 追加图层，异步的图层回来排序错乱
      const selfLayerIds = selfAppreciableLayers
        .filter((item) => !item.reused)
        .reduce((ids, item) => ids.concat(item.renderLayers), []);
      const firstSelfLayerIdOnMap = selfLayerIds.find((id) => this.map.style._layers[id]);
      if (!firstSelfLayerIdOnMap) {
        return;
      }
      const layersOnMap = this.map.getStyle().layers;
      const firstSelfLayerIndex = layersOnMap.findIndex((item) => item.id === firstSelfLayerIdOnMap);
      const extraLayerIdsOnMap = layersOnMap
        .filter((item) => !selfLayerIds.some((id) => id === item.id))
        .map((item) => item.id);
      for (const layerId of extraLayerIdsOnMap) {
        const matchIndex = layersOnMap.findIndex((item) => item.id === layerId);
        if (matchIndex > firstSelfLayerIndex) {
          return layerId;
        }
      }
    }

    _changeSourceListModel() {
      const layersFromMapInfo = [];