Dynamic layers 2

by Vladimir Vershinin

HTML

<script src="https://unpkg.com/vue@latest/dist/vue.min.js"></script>
<script src="https://cdn.jsdelivr.net/gh/openlayers/openlayers.github.io/en/v5.3.0/build/ol.js"></script>
<script src="https://unpkg.com/[email protected]/lib/index.umd.js"></script>
<link rel="stylesheet" href="https://unpkg.com/[email protected]/lib/style.css">
<div id="app">
  <vl-map ref="map" @singleclick="onMapClick">
    <vl-view ref="mapView" :zoom.sync="zoom" :center.sync="center"></vl-view>
    
    <vl-layer-tile>
      <vl-source-osm />
    </vl-layer-tile>
    
    <!-- other layers from config -->
      <component v-for="layer in layers" :is="layer.cmp" v-if="layer.visible" :key="layer.id" v-bind="layer">
        <!-- add vl-source-* -->
        <component :is="layer.source.cmp" v-bind="layer.source">
        </component>
        <!--// vl-source-* -->

      </component>
      <!--// other layers -->
  </vl-map>  
</div>

CSS

html, body, #app {
  width: 100%;
  height: 100%;
  margin: 0;
  padding: 0;
}

JavaScript

new Vue({
	el: '#app',
  data () {
  	return {
    	zoom: 3,
      center: [-10000000, 3500000],
      layers: [
      	{
        	id: 'wms-image',
          title: 'Image WMS',
          cmp: 'vl-layer-image',
          visible: true,
          source: {
            cmp: 'vl-source-image-wms',
            url: 'https://ahocevar.com/geoserver/wms',
            layers: 'topp:states',
            serverType: 'geoserver',
            crossOrigin: 'anonymous',
          },
        },
      ],
    }
  },
  methods: {
    onMapClick (evt) {
      // filter out just a first matched layer
      // there we get ol/layer/Tile instance
    	const layer = this.$refs.map.forEachLayerAtPixel(evt.pixel, layer => layer)
      console.log(layer)
      console.log(layer.get('id'))
      // find layer props from data
      const layerProps = this.layers.find(props => props.id === layer.get('id'))
      console.log(layerProps)
      
      // get bound Vue component
      const layerCmp = layer.vm[0]
      console.log(layerCmp)      
 		},
  },
})