Add DESTROY_RESOURCE_START action

frontend/api/crud.ts

@@ -194,8 +194,14 @@ export const destroyCatch = (p: DestroyNoProps) => (err: UnsafeError) => {
   return Promise.reject(err);
 };
 
+/** We need this to detect read-only deletion attempts */
+function destroyStart() {
+  return { type: Actions.DESTROY_RESOURCE_START, payload: {} };
+}
+
 export function destroy(uuid: string, force = false) {
   return function (dispatch: Function, getState: GetState) {
+    dispatch(destroyStart());
     /** Stop user from deleting resources if app is read only. */
     if (appIsReadonly(getState().resources.index)) {
       return Promise.reject("Application is in read-only mode.");

frontend/constants.ts

@@ -893,6 +893,7 @@ export namespace DiagnosticMessages {
 export enum Actions {
 
   // Resources
+  DESTROY_RESOURCE_START = "DESTROY_RESOURCE_START",
   DESTROY_RESOURCE_OK = "DESTROY_RESOURCE_OK",
   INIT_RESOURCE = "INIT_RESOURCE",
   BATCH_INIT = "BATCH_INIT",

frontend/resources/reducer_support.ts

@@ -275,6 +275,7 @@ export const beforeEach = (state: RestResources,
         return state;
       }
     case Actions.SAVE_RESOURCE_START:
+    case Actions.DESTROY_RESOURCE_START:
       if (kind !== "WebAppConfig") {
         // User is trying to make HTTP requests.
         fail("3");