Merge pull request #1009 from dbauszus-glx/mvt-clear-source

mvt clear source and refresh

lib/layer/decorate.mjs

@@ -60,6 +60,35 @@ export default async layer => {
         layer.draw?.defaults || {}))
     })
 
+    // Check whether feature is loaded on MVT update.
+    if (layer.format === 'mvt') {
+
+      layer.features = []
+
+      // Concat layer.features array with features from tileloadend
+      layer.source.on('tileloadend', concatFeatures);
+
+      function concatFeatures(e) {
+
+        layer.features = layer.features.concat(e.tile.getFeatures())
+      }
+
+      setTimeout(checkFeature, 1000)
+
+      function checkFeature() {
+
+        let found = layer.features?.find(F => F.properties?.id === location.id)
+
+        if (found) {
+
+          layer.source.un('tileloadend', concatFeatures);
+        } else {
+
+          layer.reload()
+        }
+      }
+    }
+
     // Layer must be reloaded to reflect geometry changes.
     layer.reload()
 

lib/layer/format/mvt.mjs

@@ -8,7 +8,7 @@ export default layer => {
 
   layer.reload = () => {
 
-    //layer.source.clear()
+    layer.source.clear()
     layer.source.refresh()
     layer.tilesLoaded = []
     layer.featureSource.refresh()