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Edit File : class-wp-customize-custom-css-setting.php \| Size : 5.16 KB
<?php /** * Customize API: WP_Customize_Custom_CSS_Setting class * * This handles validation, sanitization and saving of the value. * * @package WordPress * @subpackage Customize * @since 4.7.0 / /* * Custom Setting to handle WP Custom CSS. * * @since 4.7.0 * * @see WP_Customize_Setting / final class WP_Customize_Custom_CSS_Setting extends WP_Customize_Setting { /* * The setting type. * * @since 4.7.0 * @var string / public $type = 'custom_css'; /* * Setting Transport * * @since 4.7.0 * @var string / public $transport = 'postMessage'; /* * Capability required to edit this setting. * * @since 4.7.0 * @var string / public $capability = 'edit_css'; /* * Stylesheet * * @since 4.7.0 * @var string / public $stylesheet = ''; /* * WP_Customize_Custom_CSS_Setting constructor. * * @since 4.7.0 * * @throws Exception If the setting ID does not match the pattern `custom_css[$stylesheet]`. * * @param WP_Customize_Manager $manager Customizer bootstrap instance. * @param string $id A specific ID of the setting. * Can be a theme mod or option name. * @param array $args Setting arguments. / public function __construct( $manager, $id, $args = array() ) { parent::__construct( $manager, $id, $args ); if ( 'custom_css' !== $this->id_data['base'] ) { throw new Exception( 'Expected custom_css id_base.' ); } if ( 1 !== count( $this->id_data['keys'] ) \|\| empty( $this->id_data['keys'][0] ) ) { throw new Exception( 'Expected single stylesheet key.' ); } $this->stylesheet = $this->id_data['keys'][0]; } /* * Add filter to preview post value. * * @since 4.7.9 * * @return bool False when preview short-circuits due no change needing to be previewed. / public function preview() { if ( $this->is_previewed ) { return false; } $this->is_previewed = true; add_filter( 'wp_get_custom_css', array( $this, 'filter_previewed_wp_get_custom_css' ), 9, 2 ); return true; } /* * Filters `wp_get_custom_css` for applying the customized value. * * This is used in the preview when `wp_get_custom_css()` is called for rendering the styles. * * @since 4.7.0 * * @see wp_get_custom_css() * * @param string $css Original CSS. * @param string $stylesheet Current stylesheet. * @return string CSS. / public function filter_previewed_wp_get_custom_css( $css, $stylesheet ) { if ( $stylesheet === $this->stylesheet ) { $customized_value = $this->post_value( null ); if ( ! is_null( $customized_value ) ) { $css = $customized_value; } } return $css; } /* * Fetch the value of the setting. Will return the previewed value when `preview()` is called. * * @since 4.7.0 * * @see WP_Customize_Setting::value() * * @return string / public function value() { if ( $this->is_previewed ) { $post_value = $this->post_value( null ); if ( null !== $post_value ) { return $post_value; } } $id_base = $this->id_data['base']; $value = ''; $post = wp_get_custom_css_post( $this->stylesheet ); if ( $post ) { $value = $post->post_content; } if ( empty( $value ) ) { $value = $this->default; } /* This filter is documented in wp-includes/class-wp-customize-setting.php / $value = apply_filters( "customize_value_{$id_base}", $value, $this ); return $value; } /* * Validate a received value for being valid CSS. * * Checks for imbalanced braces, brackets, and comments. * Notifications are rendered when the customizer state is saved. * * @since 4.7.0 * @since 4.9.0 Checking for balanced characters has been moved client-side via linting in code editor. * @since 5.9.0 Renamed `$css` to `$value` for PHP 8 named parameter support. * * @param string $value CSS to validate. * @return true\|WP_Error True if the input was validated, otherwise WP_Error. / public function validate( $value ) { // Restores the more descriptive, specific name for use within this method. $css = $value; $validity = new WP_Error(); if ( preg_match( '#</?\w+#', $css ) ) { $validity->add( 'illegal_markup', __( 'Markup is not allowed in CSS.' ) ); } if ( ! $validity->has_errors() ) { $validity = parent::validate( $css ); } return $validity; } /* * Store the CSS setting value in the custom_css custom post type for the stylesheet. * * @since 4.7.0 * @since 5.9.0 Renamed `$css` to `$value` for PHP 8 named parameter support. * * @param string $value CSS to update. * @return int\|false The post ID or false if the value could not be saved. */ public function update( $value ) { // Restores the more descriptive, specific name for use within this method. $css = $value; if ( empty( $css ) ) { $css = ''; } $r = wp_update_custom_css_post( $css, array( 'stylesheet' => $this->stylesheet, ) ); if ( is_wp_error( $r ) ) { return false; } $post_id = $r->ID; // Cache post ID in theme mod for performance to avoid additional DB query. if ( $this->manager->get_stylesheet() === $this->stylesheet ) { set_theme_mod( 'custom_css_post_id', $post_id ); } return $post_id; } } Back

Edit File : class-wp-customize-custom-css-setting.php | Size : 5.16 KB

<?php
/**
 * Customize API: WP_Customize_Custom_CSS_Setting class
 *
 * This handles validation, sanitization and saving of the value.
 *
 * @package WordPress
 * @subpackage Customize
 * @since 4.7.0
 */

/**
 * Custom Setting to handle WP Custom CSS.
 *
 * @since 4.7.0
 *
 * @see WP_Customize_Setting
 */
final class WP_Customize_Custom_CSS_Setting extends WP_Customize_Setting {

/**
	 * The setting type.
	 *
	 * @since 4.7.0
	 * @var string
	 */
	public $type = 'custom_css';

/**
	 * Setting Transport
	 *
	 * @since 4.7.0
	 * @var string
	 */
	public $transport = 'postMessage';

/**
	 * Capability required to edit this setting.
	 *
	 * @since 4.7.0
	 * @var string
	 */
	public $capability = 'edit_css';

/**
	 * Stylesheet
	 *
	 * @since 4.7.0
	 * @var string
	 */
	public $stylesheet = '';

/**
	 * WP_Customize_Custom_CSS_Setting constructor.
	 *
	 * @since 4.7.0
	 *
	 * @throws Exception If the setting ID does not match the pattern `custom_css[$stylesheet]`.
	 *
	 * @param WP_Customize_Manager $manager Customizer bootstrap instance.
	 * @param string               $id      A specific ID of the setting.
	 *                                      Can be a theme mod or option name.
	 * @param array                $args    Setting arguments.
	 */
	public function __construct( $manager, $id, $args = array() ) {
		parent::__construct( $manager, $id, $args );
		if ( 'custom_css' !== $this->id_data['base'] ) {
			throw new Exception( 'Expected custom_css id_base.' );
		}
		if ( 1 !== count( $this->id_data['keys'] ) || empty( $this->id_data['keys'][0] ) ) {
			throw new Exception( 'Expected single stylesheet key.' );
		}
		$this->stylesheet = $this->id_data['keys'][0];
	}

/**
	 * Add filter to preview post value.
	 *
	 * @since 4.7.9
	 *
	 * @return bool False when preview short-circuits due no change needing to be previewed.
	 */
	public function preview() {
		if ( $this->is_previewed ) {
			return false;
		}
		$this->is_previewed = true;
		add_filter( 'wp_get_custom_css', array( $this, 'filter_previewed_wp_get_custom_css' ), 9, 2 );
		return true;
	}

/**
	 * Filters `wp_get_custom_css` for applying the customized value.
	 *
	 * This is used in the preview when `wp_get_custom_css()` is called for rendering the styles.
	 *
	 * @since 4.7.0
	 *
	 * @see wp_get_custom_css()
	 *
	 * @param string $css        Original CSS.
	 * @param string $stylesheet Current stylesheet.
	 * @return string CSS.
	 */
	public function filter_previewed_wp_get_custom_css( $css, $stylesheet ) {
		if ( $stylesheet === $this->stylesheet ) {
			$customized_value = $this->post_value( null );
			if ( ! is_null( $customized_value ) ) {
				$css = $customized_value;
			}
		}
		return $css;
	}

/**
	 * Fetch the value of the setting. Will return the previewed value when `preview()` is called.
	 *
	 * @since 4.7.0
	 *
	 * @see WP_Customize_Setting::value()
	 *
	 * @return string
	 */
	public function value() {
		if ( $this->is_previewed ) {
			$post_value = $this->post_value( null );
			if ( null !== $post_value ) {
				return $post_value;
			}
		}
		$id_base = $this->id_data['base'];
		$value   = '';
		$post    = wp_get_custom_css_post( $this->stylesheet );
		if ( $post ) {
			$value = $post->post_content;
		}
		if ( empty( $value ) ) {
			$value = $this->default;
		}

/** This filter is documented in wp-includes/class-wp-customize-setting.php */
		$value = apply_filters( "customize_value_{$id_base}", $value, $this );

return $value;
	}

/**
	 * Validate a received value for being valid CSS.
	 *
	 * Checks for imbalanced braces, brackets, and comments.
	 * Notifications are rendered when the customizer state is saved.
	 *
	 * @since 4.7.0
	 * @since 4.9.0 Checking for balanced characters has been moved client-side via linting in code editor.
	 * @since 5.9.0 Renamed `$css` to `$value` for PHP 8 named parameter support.
	 *
	 * @param string $value CSS to validate.
	 * @return true|WP_Error True if the input was validated, otherwise WP_Error.
	 */
	public function validate( $value ) {
		// Restores the more descriptive, specific name for use within this method.
		$css = $value;

$validity = new WP_Error();

if ( preg_match( '#</?\w+#', $css ) ) {
			$validity->add( 'illegal_markup', __( 'Markup is not allowed in CSS.' ) );
		}

if ( ! $validity->has_errors() ) {
			$validity = parent::validate( $css );
		}
		return $validity;
	}

/**
	 * Store the CSS setting value in the custom_css custom post type for the stylesheet.
	 *
	 * @since 4.7.0
	 * @since 5.9.0 Renamed `$css` to `$value` for PHP 8 named parameter support.
	 *
	 * @param string $value CSS to update.
	 * @return int|false The post ID or false if the value could not be saved.
	 */
	public function update( $value ) {
		// Restores the more descriptive, specific name for use within this method.
		$css = $value;

if ( empty( $css ) ) {
			$css = '';
		}

$r = wp_update_custom_css_post(
			$css,
			array(
				'stylesheet' => $this->stylesheet,
			)
		);

if ( is_wp_error( $r ) ) {
			return false;
		}

$post_id = $r->ID;

// Cache post ID in theme mod for performance to avoid additional DB query.
		if ( $this->manager->get_stylesheet() === $this->stylesheet ) {
			set_theme_mod( 'custom_css_post_id', $post_id );
		}

return $post_id;
	}
}

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