wire up editor component (somewhat hacky)

src/components/views/elements/MessageEditor.js

@@ -0,0 +1,56 @@
+/*
+Copyright 2019 New Vector Ltd
+
+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 sdk from '../../../index';
+import {_t} from '../../../languageHandler';
+import PropTypes from 'prop-types';
+import dis from '../../../dispatcher';
+import {MatrixEvent, MatrixClient} from 'matrix-js-sdk';
+
+export default class MessageEditor extends React.Component {
+    static propTypes = {
+        // the latest event in this chain of replies
+        event: PropTypes.instanceOf(MatrixEvent).isRequired,
+        // called when the ReplyThread contents has changed, including EventTiles thereof
+        // onHeightChanged: PropTypes.func.isRequired,
+    };
+
+    static contextTypes = {
+        matrixClient: PropTypes.instanceOf(MatrixClient).isRequired,
+    };
+
+    constructor(props, context) {
+        super(props, context);
+        this.state = {};
+        this._onCancelClicked = this._onCancelClicked.bind(this);
+    }
+
+    _onCancelClicked() {
+        dis.dispatch({action: "edit_event", event: null});
+    }
+
+    render() {
+        const AccessibleButton = sdk.getComponent('elements.AccessibleButton');
+        return <div className="mx_MessageEditor">
+                <div className="editor" contentEditable="true">
+                    {this.props.event.getContent().body}
+                </div>
+                <div className="buttons">
+                    <AccessibleButton onClick={this._onCancelClicked}>{_t("Cancel")}</AccessibleButton>
+                </div>
+            </div>;
+    }
+}