bp_add_cover_image_inline_css( bool $return = false )

function bp_add_cover_image_inline_css( $return = false ) {
	$bp = buddypress();

	// Find the component of the current item.
	if ( bp_is_user() ) {

		// User is not allowed to upload cover photos
		// no need to carry on.
		if ( bp_disable_cover_image_uploads() ) {
			return;
		}

		$cover_image_object = array(
			'component' => 'xprofile',
			'object' => $bp->displayed_user
		);
	} elseif ( bp_is_group() ) {

		// Users are not allowed to upload cover photos for their groups
		// no need to carry on.
		if ( bp_disable_group_cover_image_uploads() ) {
			return;
		}

		$cover_image_object = array(
			'component' =>'groups',
			'object' => $bp->groups->current_group
		);
	} else {
		$cover_image_object = apply_filters( 'bp_current_cover_image_object_inline_css', array() );
	}

	// Bail if no component were found.
	if ( empty( $cover_image_object['component'] ) || empty( $cover_image_object['object'] ) || ! bp_is_active( $cover_image_object['component'], 'cover_image' ) ) {
		return;
	}

	// Get the settings of the cover photo feature for the current component.
	$params = bp_attachments_get_cover_image_settings( $cover_image_object['component'] );

	// Bail if no params.
	if ( empty( $params ) ) {
		return;
	}

	// Try to call the callback.
	if ( is_callable( $params['callback'] ) ) {

		$object_dir = $cover_image_object['component'];

		if ( 'xprofile' === $object_dir ) {
			$object_dir = 'members';
		}

		$cover_image = bp_attachments_get_attachment( 'url', array(
			'object_dir' => $object_dir,
			'item_id'    => $cover_image_object['object']->id,
		) );

		if ( empty( $cover_image ) ) {
			if ( ! empty( $params['default_cover'] ) ) {
				$cover_image = $params['default_cover'];
			}
		}

		$inline_css = call_user_func_array( $params['callback'], array( array(
			'cover_image' => esc_url_raw( $cover_image ),
			'component'   => sanitize_key( $cover_image_object['component'] ),
			'object_id'   => (int) $cover_image_object['object']->id,
			'width'       => (int) $params['width'],
			'height'      => (int) $params['height'],
		) ) );

		// Finally add the inline css to the handle.
		if ( ! empty( $inline_css ) ) {

			// Used to get the css when Ajax setting the cover photo.
			if ( true === $return ) {
				return array(
					'css_rules' => '<style>' . "\n" . $inline_css . "\n" . '</style>',
					'handle'    => $params['theme_handle'],
				);
			}

			wp_add_inline_style( $params['theme_handle'], $inline_css );
		} else {
			return false;
		}
	}
}