Openlayers - 选择交互 - 不要使用 ol.style.Icon 和 ol.style.FontSymbol 查询点几何

Question

我试图在选择具有 ol.style.Style 样式的点几何时不查询，其中在某些情况下配置 ol.style.Icon，在其他情况下配置 ol.style.FontSymbol

ol.style.Icon 示例https://www.opengis.it/ente/demo/styles/StruttureSensibili_style.js

ol.style.FontSymbol 示例https://www.opengis.it/a_opengis/opengis_fontsymbol.js

我写了这段代码，怎么不行？

    // Function to check if a feature has FontSymbol or Icon style
    function hasFontSymbolOrIconStyle(feature) {
      var styles = feature.getStyle();
      
      if (Array.isArray(styles)) {
        return styles.some(function(style) {
          var image = style.getImage();
          return (
            (style instanceof ol.style.Style &&
              (image instanceof ol.style.FontSymbol ||
                image instanceof ol.style.Icon)) ||
            image instanceof ol.style.FontSymbol ||
            image instanceof ol.style.Icon
          );
        });
      }
      
      return false;
    }
    
    // Feature Popup Select interaction
    var popupselect = new ol.interaction.Select({
      hitTolerance: 5,
      multi: true,
      condition: ol.events.condition.singleClick,
      style: function(feature, resolution) {
        if (hasFontSymbolOrIconStyle(feature)) {
          // Return null to use the default style for point geometries with FontSymbol or Icon style
          return null;
        } else {
          // Apply the highlightPopupStyle for other geometries
          return highlightPopupStyle;
        }
      }
    });
    
    map.addInteraction(popupselect);