move non-Riot-specific components over from riot-web

src/components/structures/ViewSource.js

@@ -0,0 +1,57 @@
+/*
+Copyright 2015, 2016 OpenMarket 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.
+*/
+
+'use strict';
+
+import React from 'react';
+import PropTypes from 'prop-types';
+import SyntaxHighlight from '../views/elements/SyntaxHighlight';
+
+
+module.exports = React.createClass({
+    displayName: 'ViewSource',
+
+    propTypes: {
+        content: PropTypes.object.isRequired,
+        onFinished: PropTypes.func.isRequired,
+    },
+
+    componentDidMount: function() {
+        document.addEventListener("keydown", this.onKeyDown);
+    },
+
+    componentWillUnmount: function() {
+        document.removeEventListener("keydown", this.onKeyDown);
+    },
+
+    onKeyDown: function(ev) {
+        if (ev.keyCode == 27) { // escape
+            ev.stopPropagation();
+            ev.preventDefault();
+            this.props.onFinished();
+        }
+    },
+
+    render: function() {
+        return (
+            <div className="mx_ViewSource">
+                <SyntaxHighlight className="json">
+                    { JSON.stringify(this.props.content, null, 2) }
+                </SyntaxHighlight>
+            </div>
+        );
+    }
+});