e number of newest activities for
		 * the 'Mentions', 'My Groups' & 'My Friends' tabs
		 */
		if ( 'all' === $scope ) {
			if ( 'groups' === $component && bp_is_active( $component ) ) {
				// Is the current user a member of the group the activity is attached to?
				if ( groups_is_user_member( $user_id, bp_get_activity_item_id() ) ) {
					$my_classes[] = 'bp-my-groups';
				}
			}

			// Friends can post in groups the user is a member of
			if ( bp_is_active( 'friends' ) && (int) $user_id !== (int) bp_get_activity_user_id() ) {
				if ( friends_check_friendship( $user_id, bp_get_activity_user_id() ) ) {
					$my_classes[] = 'bp-my-friends';
				}
			}

			// A mention can be posted by a friend within a group
			if ( true === bp_activity_do_mentions() ) {
				$new_mentions = bp_get_user_meta( $user_id, 'bp_new_mentions', true );

				// The current activity is one of the new mentions
				if ( is_array( $new_mentions ) && in_array( bp_get_activity_id(), $new_mentions, true ) ) {
					$my_classes[] = 'bp-my-mentions';
				}
			}

		/*
		 * This class will be used to highlight the newest activities when
		 * viewing the 'Mentions', 'My Groups' or the 'My Friends' tabs
		 */
		} elseif ( 'friends' === $scope || 'groups' === $scope || 'mentions' === $scope ) {
			$my_classes[] = 'newest_' . $scope . '_activity';
		}

		// Leave other components do their specific stuff if needed.
		/**
		 * Filters the classes to be applied to the newest activity item.
		 *
		 * Leave other components do their specific stuff if needed.
		 *
		 * @since 3.0.0
		 *
		 * @param array  $my_classes Array of classes to output to class attribute.
		 * @param string $scope      Current scope for the activity type.
		 */
		$my_classes = (array) apply_filters( 'bp_nouveau_activity_scope_newest_class', $my_classes, $scope );

		if ( ! empty( $my_classes ) ) {
			$classes .= ' ' . join( ' ', $my_classes );
		}
	}

	return $classes;
}

/**
 * Get the activity query args for the widget.
 *
 * @since 3.0.0
 *
 * @return array The activity arguments.
 */
function bp_nouveau_activity_widget_query() {
	$args       = array();
	$bp_nouveau = bp_nouveau();

	if ( isset( $bp_nouveau->activity->widget_args ) ) {
		$args = $bp_nouveau->activity->widget_args;
	}

	/**
	 * Filter to edit the activity widget arguments.
	 *
	 * @since 3.0.0
	 *
	 * @param array $args The activity arguments.
	 */
	return apply_filters( 'bp_nouveau_activity_widget_query', $args );
}

/**
 * Register notifications filters for the activity component.
 *
 * @since 3.0.0
 */
function bp_nouveau_activity_notification_filters() {
	$notifications = array(
		array(
			'id'       => 'new_at_mention',
			'label'    => __( 'New mentions', 'buddypress' ),
			'position' => 5,
		),
		array(
			'id'       => 'update_reply',
			'label'    => __( 'New update replies', 'buddypress' ),
			'position' => 15,
		),
		array(
			'id'       => 'comment_reply',
			'label'    => __( 'New update comment replies', 'buddypress' ),
			'position' => 25,
		),
	);

	foreach ( $notifications as $notification ) {
		bp_nouveau_notifications_register_filter( $notification );
	}
}

/**
 * Add controls for the settings of the customizer for the activity component.
 *
 * @since 3.0.0
 *
 * @param array $controls Optional. The controls to add.
 *
 * @return array the controls to add.
 */
function bp_nouveau_activity_customizer_controls( $controls = array() ) {
	return array_merge( $controls, array(
		'act_dir_layout' => array(
			'label'      => __( 'Use column navigation for the Activity directory.', 'buddypress' ),
			'section'    => 'bp_nouveau_dir_layout',
			'settings'   => 'bp_nouveau_appearance[activity_dir_layout]',
			'type'       => 'checkbox',
		),
		'act_dir_tabs' => array(
			'label'      => __( 'Use tab styling for Activity directory navigation.', 'buddypress' ),
			'section'    => 'bp_nouveau_dir_layout',
			'settings'   => 'bp_nouveau_appearance[activity_dir_tabs]',
			'type'       => 'checkbox',
		),
	) );
}

/**
 * Remove brackets around the "Read more" text.
 *
 * @since 7.0.0
 *
 * @param string $read_more The read more text.
 * @return string The read more text without brackets.
 */
function bp_nouveau_activity_excerpt_append_text( $read_more = '' ) {
	/**
	 * As this was added during a string freeze period, we
	 * are using the `str_replace()` function.
	 */
	return str_replace( array( '[', ']' ), '', $read_more );
}
add_filter( 'bp_activity_excerpt_append_text', 'bp_nouveau_activity_excerpt_append_text', 10, 1 );

/**
 * Register Activity Ajax actions.
 *
 * @since 12.0.0
 */
function bp_nouveau_register_activity_ajax_actions() {
	$ajax_actions = array( 'activity_filter', 'get_single_activity_content', 'activity_mark_fav', 'activity_mark_unfav', 'activity_clear_new_mentions', 'delete_activity', 'new_activity_comment', 'bp_nouveau_get_activity_objects', 'post_update', 'bp_spam_activity', 'heartbeat' );

	foreach ( $ajax_actions as $ajax_action ) {
		bp_ajax_register_action( $ajax_action );
	}
}
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