ulgm_group_mangement_group_dropdown_padding

Description

Usage

add_filter( 'ulgm_group_mangement_group_dropdown_padding', 'your_function_name', 10, 2 );

Parameters

$depth (mixed)

This parameter is an array containing default padding characters and a multiplier based on the current depth within the group hierarchy.

$depth (mixed)

This parameter holds an array containing the padding character and a multiplier based on the depth of the group in the dropdown hierarchy.

Return Value

The filtered value.

Examples

/**
 * Modify the padding for group dropdown items to add more indentation for deeper levels.
 *
 * The default padding uses '— ' repeated by the depth. This filter allows
 * customization of the input character and multiplier.
 *
 * @param array $padding An array containing 'input' (the character to repeat) and 'multiplier' (how many times to repeat it).
 * @param int   $depth   The current depth of the item in the hierarchy.
 * @return array The modified padding array.
 */
add_filter( 'ulgm_group_mangement_group_dropdown_padding', 'my_custom_group_dropdown_padding', 10, 2 );

function my_custom_group_dropdown_padding( $padding, $depth ) {
    // Ensure we have a valid depth to avoid unexpected behavior.
    if ( ! is_numeric( $depth ) || $depth < 0 ) {
        $depth = 0;
    }

    // Add an extra indentation character for every two levels deeper.
    $additional_indentation = floor( $depth / 2 );

    // Combine the default input character with an extra character for the additional indentation.
    $padding['input'] = '- ' . $padding['input']; // Prepend default dash with another dash.
    $padding['multiplier'] = $depth + $additional_indentation; // Increase multiplier based on depth and extra indentation.

    return $padding;
}

Placement

This code should be placed in the functions.php file of your active theme, a custom plugin, or using a code snippets plugin.

Source Code

src/includes/class-walker-group-dropdown.php:60
src/includes/class-walker-group-dropdown.php:385

public function start_el( &$output, $page, $depth = 0, $args = array(), $id = 0 ) {

		$padding = apply_filters(
			'ulgm_group_mangement_group_dropdown_padding',
			[
				'input'      => '— ',
				'multiplier' => $depth * 1
			],
			$depth
		);

		$pad = str_repeat( $padding['input'], $padding['multiplier'] );

		if ( ! isset( $args['value_field'] ) || ! isset( $page->{$args['value_field']} ) ) {
			$args['value_field'] = 'ID';
		}

		$output .= "t<option class="level-$depth" value="" . esc_attr( $page->{$args['value_field']} ) . '"';
		if ( $page->ID == $args['selected'] ) {
			$output .= ' selected="selected"';
		}
		$output .= '>';

		$title = $page->post_title;
		if ( '' === $title ) {
			/* translators: %d: ID of a post. */
			$title = sprintf( __( '#%d (no title)' ), $page->ID );
		}

		/**
		 * Filters the page title when creating an HTML drop-down list of pages.
		 *
		 * @param string  $title Page title.
		 * @param WP_Post $page  Page data object.
		 *
		 * @since 3.1.0
		 *
		 */
		$title = apply_filters( 'list_pages', $title, $page );

		$output .= $pad . esc_html( $title );
		$output .= "</option>n";
	}