Initial support for ToS dialogs for IS/IM

as per MSC2140

src/integrations/integrations.js

@@ -0,0 +1,55 @@
+/*
+Copyright 2019 The Matrix.org Foundation C.I.C.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+import sdk from "../index";
+import ScalarAuthClient from '../ScalarAuthClient';
+import Modal from '../Modal';
+import { TermsNotSignedError } from '../Terms';
+
+export async function showIntegrationsManager(opts) {
+    const IntegrationsManager = sdk.getComponent("views.settings.IntegrationsManager");
+
+    const close = Modal.createTrackedDialog(
+        'Integrations Manager', '', IntegrationsManager, { loading: true }, "mx_IntegrationsManager",
+    ).close;
+
+    const scalarClient = new ScalarAuthClient();
+    let props;
+    try {
+        await scalarClient.connect();
+        if (!scalarClient.hasCredentials()) {
+            props = { connected: false };
+        } else {
+            props = {
+                url: scalarClient.getScalarInterfaceUrlForRoom(
+                    opts.room,
+                    opts.screen,
+                    opts.integrationId,
+                ),
+            };
+        }
+    } catch (err) {
+        if (err instanceof TermsNotSignedError) {
+            // user canceled terms dialog, so just cancel the action
+            close();
+            return;
+        }
+        console.error(err);
+        props = { connected: false };
+    }
+    close();
+    Modal.createTrackedDialog('Integrations Manager', '', IntegrationsManager, props, "mx_IntegrationsManager");
+}