feat(prejoin_page): Add prejoin page

react/features/prejoin/components/preview/Preview.js

@@ -0,0 +1,75 @@
+// @flow
+
+import React from 'react';
+import { Avatar } from '../../../base/avatar';
+import { Video } from '../../../base/media';
+import { connect } from '../../../base/redux';
+import { getActiveVideoTrack, getPrejoinName, isPrejoinVideoMuted } from '../../functions';
+
+export type Props = {
+
+    /**
+     * The name of the user that is about to join.
+     */
+    name: string,
+
+    /**
+     * Flag signaling the visibility of camera preview.
+     */
+    showCameraPreview: boolean,
+
+    /**
+     * The JitsiLocalTrack to display.
+     */
+    videoTrack: ?Object,
+};
+
+/**
+ * Component showing the video preview and device status.
+ *
+ * @param {Props} props - The props of the component.
+ * @returns {ReactElement}
+ */
+function Preview(props: Props) {
+    const {
+        name,
+        showCameraPreview,
+        videoTrack
+    } = props;
+
+    if (showCameraPreview && videoTrack) {
+        return (
+            <div className = 'prejoin-preview'>
+                <div className = 'prejoin-preview-overlay' />
+                <Video
+                    className = 'flipVideoX prejoin-preview-video'
+                    videoTrack = {{ jitsiTrack: videoTrack }} />
+            </div>
+        );
+    }
+
+    return (
+        <div className = 'prejoin-preview prejoin-preview--no-video'>
+            <Avatar
+                className = 'prejoin-preview-avatar'
+                displayName = { name }
+                size = { 200 } />
+        </div>
+    );
+}
+
+/**
+ * Maps the redux state to the React {@code Component} props.
+ *
+ * @param {Object} state - The redux state.
+ * @returns {Object}
+ */
+function mapStateToProps(state) {
+    return {
+        name: getPrejoinName(state),
+        videoTrack: getActiveVideoTrack(state),
+        showCameraPreview: !isPrejoinVideoMuted(state)
+    };
+}
+
+export default connect(mapStateToProps)(Preview);