update 3d viewport on switching from sketchers tabs

modules/scene/sceneSetup.js

@@ -57,13 +57,19 @@ export default class SceneSetUp {
     this.container.appendChild( this.renderer.domElement );
 
     window.addEventListener( 'resize', () => {
+      this.updateViewportSize();
+    }, false );
+  }
+
+  updateViewportSize() {
+    if (this.container.clientWidth > 0 && this.container.clientHeight > 0) {
       this.updatePerspectiveCameraViewport();
       this.updateOrthographicCameraViewport();
       this.renderer.setSize( this.container.clientWidth, this.container.clientHeight );
       this.render();
-    }, false );
+    }
   }
-
+  
   updatePerspectiveCameraViewport() {
     this.pCamera.aspect = this.aspect();
     this.pCamera.updateProjectionMatrix();

web/app/cad/dom/components/View3d.jsx

@@ -36,4 +36,8 @@ export default class View3d extends React.Component {
       </div>
     </UISystem>
   }
+  
+  componentWillUnmount() {
+    throw 'big no-no';
+  }
 }

web/app/cad/dom/domPlugin.js

@@ -1,6 +1,14 @@
-export function activate(context) {
-  context.services.dom = {
+import {TOKENS as APP_TABS_TOKENS} from "./appTabsPlugin";
+
+export function activate({bus, services}) {
+  services.dom = {
     viewerContainer: document.getElementById('viewer-container')
   };
+  
+  bus.subscribe(APP_TABS_TOKENS.TABS, ({activeTab}) => {
+    if (activeTab === 0) {
+      services.viewer.updateViewportSize();
+    }
+  });
 }