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react/features/presence-status/components/PresenceLabel.tsx

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+import React, { Component } from 'react';
+import { WithTranslation } from 'react-i18next';
+import { connect } from 'react-redux';
+
+import { IReduxState } from '../../app/types';
+import { translate } from '../../base/i18n/functions';
+import { getParticipantById } from '../../base/participants/functions';
+import { Text } from '../../base/react/components/index';
+import { STATUS_TO_I18N_KEY } from '../constants';
+import { presenceStatusDisabled } from '../functions';
+
+/**
+ * The type of the React {@code Component} props of {@link PresenceLabel}.
+ */
+interface IProps extends WithTranslation {
+
+    /**
+     * The current present status associated with the passed in participantID
+     * prop.
+     */
+    _presence: string;
+
+    /**
+     * Class name for the presence label.
+     */
+    className: string;
+
+    /**
+     * Default presence status that will be displayed if user's presence status
+     * is not available.
+     */
+    defaultPresence: string;
+
+    /**
+     * The ID of the participant whose presence status should display.
+     */
+    participantID: string;
+
+    /**
+     * Styles for the presence label.
+     */
+    style: Object;
+}
+
+/**
+ * React {@code Component} for displaying the current presence status of a
+ * participant.
+ *
+ * @augments Component
+ */
+class PresenceLabel extends Component<IProps> {
+    /**
+     * The default values for {@code PresenceLabel} component's property types.
+     *
+     * @static
+     */
+    static defaultProps = {
+        _presence: ''
+    };
+
+    /**
+     * Implements React's {@link Component#render()}.
+     *
+     * @inheritdoc
+     * @returns {ReactElement}
+     */
+    override render() {
+        const text = this._getPresenceText();
+
+        if (text === null) {
+            return null;
+        }
+
+        const { style, className } = this.props;
+
+        return (
+            <Text // @ts-ignore
+                className = { className }
+                { ...style }>
+                { text }
+            </Text>
+        );
+    }
+
+    /**
+     * Returns the text associated with the current presence status.
+     *
+     * @returns {string}
+     */
+    _getPresenceText() {
+        const { _presence, t } = this.props;
+
+        if (!_presence) {
+            return null;
+        }
+
+        const i18nKey = STATUS_TO_I18N_KEY[_presence as keyof typeof STATUS_TO_I18N_KEY];
+
+        if (!i18nKey) { // fallback to status value
+            return _presence;
+        }
+
+        return t(i18nKey);
+    }
+}
+
+/**
+ * Maps (parts of) the Redux state to the associated {@code PresenceLabel}'s
+ * props.
+ *
+ * @param {Object} state - The Redux state.
+ * @param {Object} ownProps - The React Component props passed to the associated
+ * instance of {@code PresenceLabel}.
+ * @private
+ * @returns {{
+ *     _presence: (string|undefined)
+ * }}
+ */
+function _mapStateToProps(state: IReduxState, ownProps: any) {
+    const participant = getParticipantById(state, ownProps.participantID);
+
+    return {
+        _presence: presenceStatusDisabled() ? ''
+            : participant?.presence || ownProps.defaultPresence
+
+    };
+}
+
+export default translate(connect(_mapStateToProps)(PresenceLabel));