Merge pull request #3085 from matrix-org/dbkr/one_request_at_a_time_two

Use setBusy interface of js-sdk interactive auth

src/components/structures/InteractiveAuth.js

@@ -23,6 +23,8 @@ import PropTypes from 'prop-types';
 
 import {getEntryComponentForLoginType} from '../views/auth/InteractiveAuthEntryComponents';
 
+import sdk from '../../index';
+
 export default React.createClass({
     displayName: 'InteractiveAuth',
 
@@ -91,6 +93,7 @@ export default React.createClass({
         this._authLogic = new InteractiveAuth({
             authData: this.props.authData,
             doRequest: this._requestCallback,
+            busyChanged: this._onBusyChanged,
             inputs: this.props.inputs,
             stateUpdated: this._authStateUpdated,
             matrixClient: this.props.matrixClient,
@@ -165,27 +168,26 @@ export default React.createClass({
         });
     },
 
-    _requestCallback: function(auth, background) {
+    _requestCallback: function(auth) {
-        const makeRequestPromise = this.props.makeRequest(auth);
+        // This wrapper just exists because the js-sdk passes a second
+        // 'busy' param for backwards compat. This throws the tests off
+        // so discard it here.
+        return this.props.makeRequest(auth);
+    },
 
-        // if it's a background request, just do it: we don't want
+    _onBusyChanged: function(busy) {
-        // it to affect the state of our UI.
+        // if we've started doing stuff, reset the error messages
-        if (background) return makeRequestPromise;
+        if (busy) {
-
-        // otherwise, manage the state of the spinner and error messages
             this.setState({
                 busy: true,
                 errorText: null,
                 stageErrorText: null,
             });
-        return makeRequestPromise.finally(() => {
+        } else {
-            if (this._unmounted) {
-                return;
-            }
             this.setState({
                 busy: false,
             });
-        });
+        }
     },
 
     _setFocus: function() {
@@ -200,7 +202,14 @@ export default React.createClass({
 
     _renderCurrentStage: function() {
         const stage = this.state.authStage;
-        if (!stage) return null;
+        if (!stage) {
+            if (this.state.busy) {
+                const Loader = sdk.getComponent("elements.Spinner");
+                return <Loader />;
+            } else {
+                return null;
+            }
+        }
 
         const StageComponent = getEntryComponentForLoginType(stage);
         return (