wp-includes/customize/class-wp-customize-nav-menu-location-control.php:55Render content just like a normal select control.
public function render_content() { if ( empty( $this->choices ) ) { return; } $value_hidden_class = ''; $no_value_hidden_class = ''; if ( $this->value() ) { $value_hidden_class = ' hidden'; } else { $no_value_hidden_class = ' hidden'; } ?> <label> <?php if ( ! empty( $this->label ) ) : ?> <span class="customize-control-title"><?php echo esc_html( $this->label ); ?></span> <?php endif; ?> <?php if ( ! empty( $this->description ) ) : ?> <span class="description customize-control-description"><?php echo $this->description; ?></span> <?php endif; ?> <select <?php $this->link(); ?>> <?php foreach ( $this->choices as $value => $label ) : echo '<option value="' . esc_attr( $value ) . '"' . selected( $this->value(), $value, false ) . '>' . esc_html( $label ) . '</option>'; endforeach; ?> </select> </label> <button type="button" class="button-link create-menu<?php echo $value_hidden_class; ?>" data-location-id="<?php echo esc_attr( $this->location_id ); ?>" aria-label="<?php esc_attr_e( 'Create a menu for this location' ); ?>"><?php _e( '+ Create New Menu' ); ?></button> <button type="button" class="button-link edit-menu<?php echo $no_value_hidden_class; ?>" aria-label="<?php esc_attr_e( 'Edit selected menu' ); ?>"><?php _e( 'Edit Menu' ); ?></button> <?php }Introduced in 4.3.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/customize/class-wp-customize-nav-menu-location-control.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.