aristath/kirki

<?php
/**
 * Handles CSS output for background fields.
 *
 * @package    Kirki
 * @subpackage Controls
 * @copyright  Copyright (c) 2019, Ari Stathopoulos (@aristath)
 * @license    https://opensource.org/licenses/MIT
 * @since      3.0.0
 */

namespace Kirki\Field\CSS;

use Kirki\Module\CSS\Output;

/**
 * Output overrides.
 */
class Background extends Output {

    /**
     * Processes a single item from the `output` array.
     *
     * @access protected
     * @param array $output The `output` item.
     * @param array $value  The field's value.
     */
    protected function process_output( $output, $value ) {
        $output = wp_parse_args(
            $output,
            [
                'media_query' => 'global',
                'element'     => 'body',
                'prefix'      => '',
                'suffix'      => '',
            ]
        );

        foreach ( [ 'background-image', 'background-color', 'background-repeat', 'background-position', 'background-size', 'background-attachment' ] as $property ) {

            // See https://github.com/aristath/kirki/issues/1808.
            if ( 'background-color' === $property && isset( $value['background-color'] ) && $value['background-color'] && ( ! isset( $value['background-image'] ) || empty( $value['background-image'] ) ) ) {
                $this->styles[ $output['media_query'] ][ $output['element'] ]['background'] = $output['prefix'] . $this->process_property_value( $property, $value[ $property ] ) . $output['suffix'];
            }

            if ( isset( $value[ $property ] ) && ! empty( $value[ $property ] ) ) {
                $this->styles[ $output['media_query'] ][ $output['element'] ][ $property ] = $output['prefix'] . $this->process_property_value( $property, $value[ $property ] ) . $output['suffix'];
            }
        }
    }
}