
WordPress REST API入门基础知识点
locate_block_template ( $template, $type, $templates )
locate_block_template: 这是WordPress中的一个函数,它允许你在你的主题或插件中定位一个块模板文件。你可以使用这个函数以编程方式定位特定块的模板文件,然后在你的代码中包含或修改它。
找到一个比给定的PHP模板文件具有相同或更高特异性的块模板。
在内部,这通过一个全局变量来传达需要被模板画布使用的区块内容。
function locate_block_template( $template, $type, array $templates ) { global $_wp_current_template_content; if ( ! current_theme_supports( 'block-templates' ) ) { return $template; } if ( $template ) { /* * locate_template() has found a PHP template at the path specified by $template. * That means that we have a fallback candidate if we cannot find a block template * with higher specificity. * * Thus, before looking for matching block themes, we shorten our list of candidate * templates accordingly. */ // Locate the index of $template (without the theme directory path) in $templates. $relative_template_path = str_replace( array( get_stylesheet_directory() . '/', get_template_directory() . '/' ), '', $template ); $index = array_search( $relative_template_path, $templates, true ); // If the template hierarchy algorithm has successfully located a PHP template file, // we will only consider block templates with higher or equal specificity. $templates = array_slice( $templates, 0, $index + 1 ); } $block_template = resolve_block_template( $type, $templates, $template ); if ( $block_template ) { if ( empty( $block_template->content ) && is_user_logged_in() ) { $_wp_current_template_content = sprintf( /* translators: %s: Template title */ __( 'Empty template: %s' ), $block_template->title ); } elseif ( ! empty( $block_template->content ) ) { $_wp_current_template_content = $block_template->content; } if ( isset( $_GET['_wp-find-template'] ) ) { wp_send_json_success( $block_template ); } } else { if ( $template ) { return $template; } if ( 'index' === $type ) { if ( isset( $_GET['_wp-find-template'] ) ) { wp_send_json_error( array( 'message' => __( 'No matching template found.' ) ) ); } } else { return ''; // So that the template loader keeps looking for templates. } } // Add hooks for template canvas. // Add viewport meta tag. add_action( 'wp_head', '_block_template_viewport_meta_tag', 0 ); // Render title tag with content, regardless of whether theme has title-tag support. remove_action( 'wp_head', '_wp_render_title_tag', 1 ); // Remove conditional title tag rendering... add_action( 'wp_head', '_block_template_render_title_tag', 1 ); // ...and make it unconditional. // This file will be included instead of the theme's template file. return ABSPATH . WPINC . '/template-canvas.php'; }