oops, forgot the component

src/components/views/messages/EncryptionEvent.js

@@ -0,0 +1,61 @@
+/*
+Copyright 2020 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 React from 'react';
+import PropTypes from 'prop-types';
+import {MatrixClientPeg} from '../../../MatrixClientPeg';
+import * as sdk from '../../../index';
+import { _t } from '../../../languageHandler';
+import {getNameForEventRoom, userLabelForEventRoom}
+    from '../../../utils/KeyVerificationStateObserver';
+import dis from "../../../dispatcher";
+import {RIGHT_PANEL_PHASES} from "../../../stores/RightPanelStorePhases";
+
+export default class EncryptionEvent extends React.Component {
+    render() {
+        const {mxEvent} = this.props;
+
+        let body;
+        let classes = "mx_EventTile_bubble mx_cryptoEvent mx_cryptoEvent_icon";
+        if (mxEvent.getContent().algorithm === 'm.megolm.v1.aes-sha2') {
+            body = <div>
+                <div className="mx_cryptoEvent_title">{_t("Encryption enabled")}</div>
+                <div className="mx_cryptoEvent_subtitle">
+                    {_t(
+                        "Messages in this room are end-to-end encrypted. " +
+                        "Learn more & verify this user in their user profile.",
+                    )}
+                </div>
+            </div>;
+        } else {
+            body = <div>
+                <div className="mx_cryptoEvent_title">{_t("Encryption not enabled")}</div>
+                <div className="mx_cryptoEvent_subtitle">{_t("The encryption used by this room isn't supported")}</div>
+            </div>;
+            classes += " mx_cryptoEvent_icon_warning";
+        }
+
+        return (<div className={classes}>
+            {body}
+        </div>);
+        return null;
+    }
+}
+
+EncryptionEvent.propTypes = {
+    /* the MatrixEvent to show */
+    mxEvent: PropTypes.object.isRequired,
+};