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<?php |
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/** |
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* Writes compiled CSS to a file. |
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* |
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* @package Kirki |
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* @subpackage CSS Module |
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* @copyright Copyright (c) 2017, Aristeides Stathopoulos |
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* @license https://opensource.org/licenses/MIT |
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* @since 3.0.0 |
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*/ |
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/** |
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* Handles writing CSS to a file. |
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*/ |
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class Kirki_CSS_To_File { |
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/** |
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* Fallback to inline CSS? |
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* |
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* @access protected |
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* @since 3.0.0 |
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* @var bool |
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*/ |
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protected $fallback = false; |
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/** |
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* Constructor. |
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* |
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* @access public |
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* @since 3.0.0 |
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*/ |
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public function __construct() { |
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// If the file doesn't exist, create it. |
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if ( ! file_exists( $this->get_path( 'file' ) ) ) { |
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// If the file-write fails, fallback to inline |
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// and cache the failure so we don't try again immediately. |
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$this->write_file(); |
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} |
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add_action( 'customize_save_after', array( $this, 'write_file' ) ); |
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} |
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/** |
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* Gets the path of the CSS file and folder in the filesystem. |
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* |
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* @access protected |
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* @since 3.0.0 |
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* @param string $context Can be "file" or "folder". If empty, returns both as array. |
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* @return string|array |
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*/ |
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protected function get_path( $context = '' ) { |
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$upload_dir = wp_upload_dir(); |
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$paths = array( |
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'file' => wp_normalize_path( $upload_dir['basedir'] . '/kirki-css/styles.css' ), |
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'folder' => wp_normalize_path( $upload_dir['basedir'] . '/kirki-css' ), |
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); |
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if ( 'file' === $context ) { |
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return $paths['file']; |
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} |
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if ( 'folder' === $context ) { |
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return $paths['folder']; |
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} |
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return $paths; |
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} |
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/** |
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* Gets the URL of the CSS file in the filesystem. |
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* |
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* @access public |
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* @since 3.0.0 |
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* @return string |
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*/ |
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public function get_url() { |
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$upload_dir = wp_upload_dir(); |
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return esc_url_raw( $upload_dir['baseurl'] . '/kirki-css/styles.css' ); |
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} |
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/** |
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* Gets the timestamp of the file. |
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* This will be used as "version" for cache-busting purposes. |
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* |
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* @access public |
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* @since 3.0.0 |
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* @return integer|false |
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*/ |
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public function get_timestamp() { |
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if ( file_exists( $this->get_path( 'file' ) ) ) { |
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return filemtime( $this->get_path( 'file' ) ); |
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} |
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return false; |
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} |
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/** |
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* Writes the file to disk. |
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* |
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* @access public |
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* @since 3.0.0 |
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* @return bool |
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*/ |
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public function write_file() { |
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$css = array(); |
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$configs = Kirki::$config; |
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foreach ( $configs as $config_id => $args ) { |
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// Get the CSS we want to write. |
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$css[ $config_id ] = apply_filters( "kirki_{$config_id}_dynamic_css", Kirki_Modules_CSS::loop_controls( $config_id ) ); |
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} |
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$css = implode( $css, '' ); |
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// If the folder doesn't exist, create it. |
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if ( ! file_exists( $this->get_path( 'folder' ) ) ) { |
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wp_mkdir_p( $this->get_path( 'folder' ) ); |
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} |
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$filesystem = $this->get_filesystem(); |
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$write_file = (bool) $filesystem->put_contents( $this->get_path( 'file' ), $css ); |
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if ( ! $write_file ) { |
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$this->fallback = true; |
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set_transient( 'kirki_css_write_to_file_failed', true, HOUR_IN_SECONDS ); |
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} |
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return $write_file; |
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} |
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/** |
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* Gets the WP_Filesystem object. |
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* |
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* @access protected |
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* @since 3.0.0 |
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* @return object |
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*/ |
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protected function get_filesystem() { |
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// The WordPress filesystem. |
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global $wp_filesystem; |
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if ( empty( $wp_filesystem ) ) { |
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require_once wp_normalize_path( ABSPATH . '/wp-admin/includes/file.php' ); |
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WP_Filesystem(); |
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} |
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return $wp_filesystem; |
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} |
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} |
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aristath /
kirki
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