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<?php |
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/** |
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* Handles the CSS-variables of fields. |
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* |
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* @package Kirki |
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* @category Modules |
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* @author Aristeides Stathopoulos |
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* @copyright Copyright (c) 2017, Aristeides Stathopoulos |
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* @license http://opensource.org/licenses/https://opensource.org/licenses/MIT |
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* @since 3.0.28 |
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*/ |
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/** |
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* The Kirki_Modules_CSS_Vars object. |
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* |
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* @since 3.0.28 |
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*/ |
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class Kirki_Modules_CSS_Vars { |
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/** |
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* The object instance. |
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* |
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* @static |
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* @access private |
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* @since 3.0.28 |
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* @var object |
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*/ |
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private static $instance; |
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/** |
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* Fields with variables. |
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* |
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* @access private |
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* @since 3.0.28 |
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* @var array |
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*/ |
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private $fields = array(); |
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/** |
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* Constructor |
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* |
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* @access protected |
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* @since 3.0.28 |
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*/ |
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protected function __construct() { |
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add_action( 'wp_head', array( $this, 'the_style' ), 0 ); |
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} |
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/** |
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* Gets an instance of this object. |
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* Prevents duplicate instances which avoid artefacts and improves performance. |
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* |
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* @static |
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* @access public |
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* @since 3.0.28 |
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* @return object |
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*/ |
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public static function get_instance() { |
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if ( ! self::$instance ) { |
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self::$instance = new self(); |
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} |
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return self::$instance; |
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} |
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/** |
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* Add styles in <head>. |
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* |
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* @access public |
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* @since 3.0.28 |
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* @return void |
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*/ |
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public function the_style() { |
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// Get an array of all fields. |
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$fields = Kirki::$fields; |
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echo '<style id="kirki-css-vars">'; |
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echo ':root{'; |
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foreach ( $fields as $id => $args ) { |
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if ( isset( $args['css_var'] ) && ! empty( $args['css_var'] ) ) { |
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if ( is_string( $args['css_var'] ) ) { |
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$args['css_var'] = array( $args['css_var'], '$' ); |
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} |
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echo esc_attr( $args['css_var'][0] ) . ':' . esc_attr( str_replace( '$', Kirki_Values::get_value( $args['kirki_config'], $id ), $args['css_var'][1] ) ) . ';'; |
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} |
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} |
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echo '}'; |
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echo '</style>'; |
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} |
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} |
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aristath /
kirki
