feat: add grant moderator functionality

react/features/remote-video-menu/components/web/GrantModeratorButton.js

@@ -0,0 +1,60 @@
+/* @flow */
+
+import React from 'react';
+
+import { translate } from '../../../base/i18n';
+import { IconCrown } from '../../../base/icons';
+import { connect } from '../../../base/redux';
+import AbstractGrantModeratorButton, {
+    _mapStateToProps,
+    type Props
+} from '../AbstractGrantModeratorButton';
+
+import RemoteVideoMenuButton from './RemoteVideoMenuButton';
+
+declare var interfaceConfig: Object;
+
+/**
+ * Implements a React {@link Component} which displays a button for granting
+ * moderator to a participant.
+ */
+class GrantModeratorButton extends AbstractGrantModeratorButton {
+    /**
+     * Instantiates a new {@code GrantModeratorButton}.
+     *
+     * @inheritdoc
+     */
+    constructor(props: Props) {
+        super(props);
+
+        this._handleClick = this._handleClick.bind(this);
+    }
+
+    /**
+     * Implements React's {@link Component#render()}.
+     *
+     * @inheritdoc
+     * @returns {ReactElement}
+     */
+    render() {
+        const { participantID, t, visible } = this.props;
+
+        if (!visible) {
+            return null;
+        }
+
+        return (
+            <RemoteVideoMenuButton
+                buttonText = { t('videothumbnail.grantModerator') }
+                displayClass = 'grantmoderatorlink'
+                icon = { IconCrown }
+                id = { `grantmoderatorlink_${participantID}` }
+                // eslint-disable-next-line react/jsx-handler-names
+                onClick = { this._handleClick } />
+        );
+    }
+
+    _handleClick: () => void
+}
+
+export default translate(connect(_mapStateToProps)(GrantModeratorButton));