Component.onCompleted: {
    iface.addItemToPluginsToolbar(pluginButton)

    pointHandler.registerHandler("species_plugin", (point, type, interactionType) => {
      if (interactionType === "clicked") {
        let tl = mapCanvas.mapSettings.screenToCoordinate(Qt.point(point.x - 4, point.y - 4))
        let br = mapCanvas.mapSettings.screenToCoordinate(Qt.point(point.x + 4, point.y + 4))

        let expression = "intersects(geom_from_wkt('POLYGON(("+tl.x+" "+tl.y+", "+br.x+" "+tl.y+", "+br.x+" "+br.y+", "+tl.x+" "+br.y+", "+tl.x+" "+tl.y+"))'), $geometry)"
        let it = LayerUtils.createFeatureIteratorFromExpression(qgisProject.mapLayersByName("plots")[0], expression)
        if (it.hasNext()) {
          const feature = it.next()
          console.log(feature.id)
        }
      }
      return false;
    });
  }

  Component.onDestruction: {
    pointHandler.deregisterHandler("species_plugin");
  }