Remove 'meta' option for showPaginationFeature. Add meta array property

to each feature that is returned by a query.  The meta array points
to an array of <map-meta> elements that were retrieved from the query
response document.  These are appended to the <map-link> shadow root
for each pagination feature, which might be a bit inefficient but will
not fail, I hope.

src/mapml/handlers/QueryHandler.js

@@ -102,6 +102,7 @@ export var QueryHandler = L.Handler.extend({
         })
         .then((response) => {
           let features = [];
+          let queryMetas = [];
           let geom =
             "<map-geometry cs='gcrs'><map-point><map-coordinates>" +
             e.latlng.lng +
@@ -129,11 +130,13 @@ export var QueryHandler = L.Handler.extend({
               mapmldoc.querySelectorAll('map-feature')
             );
             // <map-meta> elements for this query
-            layer.queryMetas = Array.prototype.slice.call(
+            queryMetas = Array.prototype.slice.call(
               mapmldoc.querySelectorAll(
                 'map-meta[name=cs], map-meta[name=zoom], map-meta[name=projection]'
               )
             );
+            if (queryMetas.length)
+              features.forEach((f) => (f.meta = queryMetas));
           } else {
             try {
               let featureDocument = parser.parseFromString(
@@ -149,10 +152,16 @@ export var QueryHandler = L.Handler.extend({
                 throw new Error('parsererror');
               }
               let g = parser.parseFromString(geom, 'application/xml');
+              queryMetas = Array.prototype.slice.call(
+                featureDocument.querySelectorAll(
+                  'map-meta[name=cs], map-meta[name=zoom], map-meta[name=projection]'
+                )
+              );
               for (let feature of featureCollection) {
                 if (!feature.querySelector('map-geometry')) {
                   feature.appendChild(g.firstElementChild.cloneNode(true));
                 }
+                feature.meta = queryMetas;
                 features.push(feature);
               }
             } catch (err) {
@@ -339,8 +348,7 @@ export var QueryHandler = L.Handler.extend({
       });
       f.showPaginationFeature({
         i: 0,
-        popup: layer._popup,
-        meta: layer.queryMetas
+        popup: layer._popup
       });
     }
   }

src/mapml/layers/ExtentLayer.js

@@ -61,8 +61,7 @@ export var ExtentLayer = L.LayerGroup.extend({
       this._count--;
       this._map.fire('featurepagination', {
         i: this._count,
-        popup: this,
-        meta: this._source.queryMetas
+        popup: this
       });
     }
   },
@@ -72,8 +71,7 @@ export var ExtentLayer = L.LayerGroup.extend({
       this._count++;
       this._map.fire('featurepagination', {
         i: this._count,
-        popup: this,
-        meta: this._source.queryMetas
+        popup: this
       });
     }
   },

src/mapml/layers/FeatureLayer.js

@@ -259,19 +259,12 @@ export var FeatureLayer = L.FeatureGroup.extend({
   showPaginationFeature: function (e) {
     if (this.options.query && this._queryFeatures[e.i]) {
       let feature = this._queryFeatures[e.i];
-      if (e.type === 'featurepagination') {
-        // remove map-feature only (keep meta's) when paginating
-        feature._linkEl.shadowRoot.querySelector('map-feature')?.remove();
-      } else {
-        // empty the map-extent shadowRoot
-        // remove the prev / next one <map-feature> and <map-meta>'s from shadow if there is any
-        feature._linkEl.shadowRoot.replaceChildren();
-      }
+      feature._linkEl.shadowRoot.replaceChildren();
       this.clearLayers();
       // append all map-meta from mapml document
-      if (e.meta) {
-        for (let i = 0; i < e.meta.length; i++) {
-          feature._linkEl.shadowRoot.appendChild(e.meta[i]);
+      if (feature.meta) {
+        for (let i = 0; i < feature.meta.length; i++) {
+          feature._linkEl.shadowRoot.appendChild(feature.meta[i]);
         }
       }
       feature._linkEl.shadowRoot.appendChild(feature);