Refactor bview to Stimulus (mostly)

webgis/js/controllers/bview_controller.js

@@ -2,7 +2,13 @@ import { Controller } from "@hotwired/stimulus"
 import { GisState } from '../state.js';
 
 export default class extends Controller {
-    static targets = ['bar'];
+    static targets = ['bar', 'legend'];
+
+    openView() {
+        this.barTarget.classList.remove('is-hidden');
+        this.legendTarget.classList.remove('is-hidden');
+        GisState.map._container.classList.add('bview-active');
+    }
 
     closeView(event) {
         // Don't do anything if ESC keyboard event
@@ -10,7 +16,8 @@ export default class extends Controller {
         if (event instanceof KeyboardEvent && !GisState.bViewActive) return;
 
         this.resetMap();
-        this.barTarget.remove();
+        this.barTarget.classList.add('is-hidden');
+        this.legendTarget.classList.add('is-hidden');
         GisState.bViewActive = false;
     }