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<?php
/**
* Override field methods
*
* @package Kirki
* @subpackage Controls
* @copyright Copyright (c) 2017, Aristeides Stathopoulos
* @license http://opensource.org/licenses/https://opensource.org/licenses/MIT
* @since 3.0.0
*/
/**
* Field overrides.
*/
class Kirki_Field_Background extends Kirki_Field {
/**
* Sets the control type.
*
* @access protected
*/
protected function set_type() {
$this->type = 'kirki-background';
}
/**
* Sets the $sanitize_callback
*
* @access protected
*/
protected function set_sanitize_callback() {
// If a custom sanitize_callback has been defined,
// then we don't need to proceed any further.
if ( ! empty( $this->sanitize_callback ) ) {
return;
}
$this->sanitize_callback = array( $this, 'sanitize' );
}
/**
* Sanitizes typography controls
*
* @since 2.2.0
* @param array $value The value.
* @return array
*/
public function sanitize( $value ) {
if ( ! is_array( $value ) ) {
return array();
}
return array(
'background-color' => ( isset( $value['background-color'] ) ) ? esc_attr( $value['background-color'] ) : '',
'background-image' => ( isset( $value['background-image'] ) ) ? esc_url_raw( $value['background-image'] ) : '',
'background-repeat' => ( isset( $value['background-repeat'] ) ) ? esc_attr( $value['background-repeat'] ) : '',
'background-position' => ( isset( $value['background-position'] ) ) ? esc_attr( $value['background-position'] ) : '',
'background-size' => ( isset( $value['background-size'] ) ) ? esc_attr( $value['background-size'] ) : '',
'background-attachment' => ( isset( $value['background-attachment'] ) ) ? esc_attr( $value['background-attachment'] ) : '',
);
}
/**
* Sets the $js_vars
*
* @access protected
*/
protected function set_js_vars() {
// Typecast to array.
$this->js_vars = (array) $this->js_vars;
// Check if transport is set to auto.
// If not, then skip the auto-calculations and exit early.
if ( 'auto' !== $this->transport ) {
return;
}
// Set transport to refresh initially.
// Serves as a fallback in case we failt to auto-calculate js_vars.
$this->transport = 'refresh';
$js_vars = array();
// Try to auto-generate js_vars.
// First we need to check if js_vars are empty, and that output is not empty.
if ( empty( $this->js_vars ) && ! empty( $this->output ) ) {
// Start going through each item in the $output array.
foreach ( $this->output as $output ) {
// If 'element' is not defined, skip this.
if ( ! isset( $output['element'] ) ) {
continue;
}
if ( is_array( $output['element'] ) ) {
$output['element'] = implode( ',', $output['element'] );
}
// If there's a sanitize_callback defined, skip this.
if ( isset( $output['sanitize_callback'] ) && ! empty( $output['sanitize_callback'] ) ) {
continue;
}
// If we got this far, it's safe to add this.
$js_vars[] = $output;
}
// Did we manage to get all the items from 'output'?
// If not, then we're missing something so don't add this.
if ( count( $js_vars ) !== count( $this->output ) ) {
return;
}
$this->js_vars = $js_vars;
$this->transport = 'postMessage';
}
}
}