Improve how extensions can manage cluster/workspace stores (#1176)

Signed-off-by: Jari Kolehmainen <jari.kolehmainen@gmail.com>

src/renderer/components/cluster-manager/clusters-menu.tsx

@@ -101,9 +101,11 @@ export class ClustersMenu extends React.Component<Props> {
   }
 
   render() {
-    const { className } = this.props;
-    const { newContexts } = userStore;
-    const clusters = clusterStore.getByWorkspaceId(workspaceStore.currentWorkspaceId);
+    const { className } = this.props
+    const { newContexts } = userStore
+    const workspace = workspaceStore.getById(workspaceStore.currentWorkspaceId)
+    const clusters = clusterStore.getByWorkspaceId(workspace.id)
+    const activeClusterId = clusterStore.activeCluster
     return (
       <div className={cssNames("ClustersMenu flex column", className)}>
         <div className="clusters flex column gaps">
@@ -112,7 +114,7 @@ export class ClustersMenu extends React.Component<Props> {
               {({ innerRef, droppableProps, placeholder }: DroppableProvided) => (
                 <div ref={innerRef} {...droppableProps}>
                   {clusters.map((cluster, index) => {
-                    const isActive = cluster.id === clusterStore.activeClusterId;
+                    const isActive = cluster.id === activeClusterId;
                     return (
                       <Draggable draggableId={cluster.id} index={index} key={cluster.id}>
                         {({ draggableProps, dragHandleProps, innerRef }: DraggableProvided) => (
@@ -136,11 +138,11 @@ export class ClustersMenu extends React.Component<Props> {
             </Droppable>
           </DragDropContext>
         </div>
-        <div className="add-cluster" onClick={this.addCluster}>
+        <div className="add-cluster" >
           <Tooltip targetId="add-cluster-icon">
             <Trans>Add Cluster</Trans>
           </Tooltip>
-          <Icon big material="add" id="add-cluster-icon"/>
+          <Icon big material="add" id="add-cluster-icon" disabled={workspace.isManaged} onClick={this.addCluster}/>
           {newContexts.size > 0 && (
             <Badge className="counter" label={newContexts.size} tooltip={<Trans>new</Trans>}/>
           )}