true, ); $parsed_args = wp_parse_args( $args, $defaults ); $this->init(); $this->install_strings(); add_filter( 'upgrader_source_selection', array( $this, 'check_package' ) ); add_filter( 'upgrader_post_install', array( $this, 'check_parent_theme_filter' ), 10, 3 ); if ( $parsed_args['clear_update_cache'] ) { // Clear cache so wp_update_themes() knows about the new theme. add_action( 'upgrader_process_complete', 'wp_clean_themes_cache', 9, 0 ); } $result = $this->run( array( 'package' => $package, 'destination' => get_theme_root(), 'clear_destination' => false, // Do not overwrite files. 'clear_working' => true, 'hook_extra' => array( 'type' => 'theme', 'action' => 'install', ), ) ); remove_action( 'upgrader_process_complete', 'wp_clean_themes_cache', 9 ); remove_filter( 'upgrader_source_selection', array( $this, 'check_package' ) ); remove_filter( 'upgrader_post_install', array( $this, 'check_parent_theme_filter' ) ); if ( $result && ! is_wp_error( $result ) ) { // Refresh the Theme Update information. wp_clean_themes_cache( $parsed_args['clear_update_cache'] ); } return $result; } }