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389 lines
12 KiB
PHP
389 lines
12 KiB
PHP
<?php
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/**
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* Block Templates Compatibility.
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*
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* @package Builder
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*/
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if ( ! defined( 'ABSPATH' ) ) {
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exit; // Exit if accessed directly.
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}
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/**
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* Block Templates Compatibility Class.
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*
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* @since 4.9.8
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*/
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class ET_Builder_Block_Templates {
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/**
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* Instance of `ET_Builder_Block_Templates`.
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*
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* @var ET_Builder_Block_Templates
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*/
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private static $_instance;
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/**
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* ET_Builder_Block_Templates constructor.
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*/
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public function __construct() {
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$this->init_hooks();
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}
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/**
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* Get the class instance.
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*
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* @since 4.9.8
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*
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* @return ET_Builder_Block_Templates
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*/
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public static function 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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* Initialize some hooks to support compatibility with block templates.
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*
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* @since 4.14.7
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*/
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public function init_hooks() {
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// Bail early if block templates compatibility is not needed.
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if ( ! self::is_block_templates_compat_needed() ) {
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return;
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}
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// Filters block template loeaders.
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add_action( 'wp_loaded', array( 'ET_Builder_Block_Templates', 'filter_template_loaders' ) );
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// WooCommerce compatibility for themes that support FSE.
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add_action( 'template_redirect', array( 'ET_Builder_Block_Templates', 'remove_unsupported_theme_filter' ), 12 );
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}
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/**
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* Filter specific template loaders to use theme template files if any instead of
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* 'wp_template' posts.
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*
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* @since 4.17.4
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*/
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public static function filter_template_loaders() {
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$template_slugs = self::get_supported_template_slugs();
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foreach ( $template_slugs as $template_slug ) {
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$template_name = str_replace( '-', '', $template_slug );
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$template_filter = $template_name . '_template';
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add_filter( $template_filter, array( 'ET_Builder_Block_Templates', 'override_block_template' ), 30, 3 );
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}
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}
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/**
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* Maybe override block templates.
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*
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* This action should be executed only when:
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* - TB Template is active on current page
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* - Current template is block template canvas
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*
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* @since 4.14.7
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*
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* @param string $template Current template path.
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*/
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public static function override_block_template( $template = '', $type = '', $templates = array() ) {
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// Bail early if there is no TB templates for current page request.
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if ( empty( et_theme_builder_get_template_layouts() ) ) {
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return $template;
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}
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$override_header = et_theme_builder_overrides_layout( ET_THEME_BUILDER_HEADER_LAYOUT_POST_TYPE );
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$override_body = et_theme_builder_overrides_layout( ET_THEME_BUILDER_BODY_LAYOUT_POST_TYPE );
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$override_footer = et_theme_builder_overrides_layout( ET_THEME_BUILDER_FOOTER_LAYOUT_POST_TYPE );
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// Bail early if TB doesn't override any layouts.
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if ( ! $override_header && ! $override_body && ! $override_footer ) {
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return $template;
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}
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// Bail early if current template is not `template-canvas.php`.
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if ( 'template-canvas.php' !== basename( $template ) ) {
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return $template;
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}
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// 1. Override the template canvas with PHP template.
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// Use `locate_template` to get the PHP template. If the template doesn't exist, use
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// default builder block template canvas as replacement.
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$canvas_template = ET_BUILDER_DIR . 'templates/block-template-canvas.php';
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$old_template = $template;
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$new_template = locate_template( $templates );
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$template = file_exists( $new_template ) ? $new_template : $canvas_template;
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// 2. Add needed actions and remove default template canvas actions.
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// Remove viewport meta tag.
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if ( function_exists( '_block_template_viewport_meta_tag' ) ) {
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remove_action( 'wp_head', '_block_template_viewport_meta_tag', 0 );
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}
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// Render conditional title tag for `title-tag` support.
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add_action( 'wp_head', '_wp_render_title_tag', 1 );
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// Remove unconditional title tag.
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if ( function_exists( '_block_template_render_title_tag' ) ) {
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remove_action( 'wp_head', '_block_template_render_title_tag', 1 );
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}
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// 3. Enqueue block templates compatibility fixes.
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// Those fixes are related to missing header and footer PHP templates.
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if ( $canvas_template === $template ) {
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// Add opening and closing wrappers for builder block template canvas because
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// there is no specific wrappers found when a page use block template canvas.
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add_action( 'et_theme_builder_template_after_header', array( 'ET_Builder_Block_Templates', 'main_content_opening_wrapper' ) );
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add_action( 'et_theme_builder_template_before_footer', array( 'ET_Builder_Block_Templates', 'main_content_closing_wrapper' ) );
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// Add styles to fix the body layout on additional wrappers added above.
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add_action( 'wp_enqueue_scripts', array( 'ET_Builder_Block_Templates', 'block_template_styles' ) );
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// Disable deperecated warnings on missing files.
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add_action( 'deprecated_file_included', array( 'ET_Builder_Block_Templates', 'disable_deprecated_file_warnings' ) );
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}
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/**
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* Fires additional actions after builder override block template.
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*
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* @since 4.14.7
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*
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* @param string $template New processed block template.
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* @param string $old_template Original block template.
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*/
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do_action( 'et_after_override_block_template', $template, $old_template );
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return $template;
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}
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/**
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* Set main content opening wrapper.
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*
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* Provide the opening wrapper tags only to ensure TB layout works smoothly. The same
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* wrapper is being used on Divi theme.
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*
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* @since 4.14.7
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*/
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public static function main_content_opening_wrapper() {
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// Bail early if DBP is inactive because the issue doesn't happen on Divi/Extra.
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if ( ! et_is_builder_plugin_active() ) {
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return;
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}
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// By default, content class is `builder-content`. This class has no style at all
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// because it's controlled by the builder itself. This class can be useful as an
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// indicator and selector for the content built with builder.
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$content_class = 'builder-content';
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// When current page is singular page, check builder and divi/layout block usage.
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if ( is_singular() ) {
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$post_id = get_the_ID();
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$is_page_builder_used = et_pb_is_pagebuilder_used( $post_id );
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// The `block-content wp-site-blocks` classes will added on current page when:
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// - Builder is not used.
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// - Builder is used but it's coming from Divi Layout block.
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// The `block-content` class has style to reset content width. The `wp-site-blocks`
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// class is needed to mimic default block content styles.
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if ( ! $is_page_builder_used || ( $is_page_builder_used && has_block( 'divi/layout', $post_id ) ) ) {
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$content_class = 'block-content wp-site-blocks';
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}
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}
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?>
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<div id="et-main-area">
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<div id="main-content" class="<?php echo esc_attr( $content_class ); ?>">
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<?php
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}
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/**
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* Set main content closing wrapper.
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*
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* Provide the closing wrapper tag only to ensure TB layout works smoothly. The same
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* wrapper is being used on Divi theme.
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*
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* @since 4.14.7
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*/
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public static function main_content_closing_wrapper() {
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// Bail early if DBP is inactive because the issue doesn't happen on Divi/Extra.
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if ( ! et_is_builder_plugin_active() ) {
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return;
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}
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?>
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</div><!-- #main-content -->
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</div><!-- #et-main-area -->
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<?php
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}
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/**
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* Enqueue block templates compatibility styles.
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*
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* @since 4.14.7
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*/
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public static function block_template_styles() {
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// Bail early if DBP is inactive because the issue doesn't happen on Divi/Extra.
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if ( ! et_is_builder_plugin_active() ) {
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return;
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}
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wp_enqueue_style( 'et-block-templates-styles', ET_BUILDER_URI . '/styles/block_templates.css', array(), ET_BUILDER_PRODUCT_VERSION );
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}
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/**
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* Disable deprecated files warnings.
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*
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* Since themes that support block template may don't have some files, the template
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* may fall into backward compatibility for those files and trigger warnings. Hence,
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* we need to disable them temporarily. The list of files:
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* - header
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* - footer
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* - comments
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*
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* @since 4.14.7
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*
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* @param string $file File info.
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*/
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public static function disable_deprecated_file_warnings( $file ) {
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// Bail early if DBP is inactive because the issue doesn't happen on Divi/Extra.
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if ( ! et_is_builder_plugin_active() ) {
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return;
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}
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if ( strpos( $file, 'header.php' ) || strpos( $file, 'footer.php' ) || strpos( $file, 'comments.php' ) ) {
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add_filter( 'deprecated_file_trigger_error', '__return_false' );
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} else {
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add_filter( 'deprecated_file_trigger_error', '__return_true' );
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}
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}
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/**
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* Remove unsupported theme filters for WooCommerce.
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*
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* When current theme supports FSE, WooCommerce will mark it as unsupported theme and
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* overrides some filters and few of them are related to builder. Hence, we need to
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* remove those filters to ensure Divi Builder works normally.
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*
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* @since 4.14.7
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*/
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public static function remove_unsupported_theme_filter() {
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// Bail early if WooCommerce is not active or current theme is not block theme.
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if ( ! et_is_woocommerce_plugin_active() || ! et_builder_is_block_theme() ) {
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return;
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}
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// Single Product.
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if ( is_product() ) {
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global $post;
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$post_id = $post ? $post->ID : 0;
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// Only remove those filters when current product uses builder.
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if ( et_pb_is_pagebuilder_used( $post_id ) ) {
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remove_filter( 'the_content', array( 'WC_Template_Loader', 'unsupported_theme_product_content_filter' ), 10 );
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remove_filter( 'woocommerce_product_tabs', array( 'WC_Template_Loader', 'unsupported_theme_remove_review_tab' ), 10 );
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}
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}
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}
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/**
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* Determine whether block templates compatibility support is needed or not.
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*
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* Support block templates compatibility only if:
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* - Current WordPress or Gutenberg supports block templates
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* - Current theme supports block templates
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*
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* @since 4.17.4
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*
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* @return boolean Compatibility status.
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*/
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public static function is_block_templates_compat_needed() {
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// Bail early if `locate_block_template` function doesn't exists (WP 5.8 above).
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if ( ! function_exists( 'locate_block_template' ) ) {
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return false;
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}
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// Whether current theme supports block templates or block theme.
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$is_theme_supports_block_templates = current_theme_supports( 'block-templates' );
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$is_block_theme = et_builder_is_block_theme();
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$is_block_templates_compat_needed = $is_theme_supports_block_templates || $is_block_theme;
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/**
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* Filters the result of the block templates compatibility check.
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*
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* @since 4.17.4
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*
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* @param boolean $is_block_templates_compat_needed Compatibility status.
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*/
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return (bool) apply_filters( 'et_builder_is_block_templates_compat_needed', $is_block_templates_compat_needed );
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}
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/**
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* Get supported template slugs.
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*
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* Those template slugs are available on TB.
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*
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* @since 4.17.4
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*
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* @return string[] List of supported template slugs.
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*/
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public static function get_supported_template_slugs() {
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/**
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* List of possible hook names:
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* - `404_template`
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* - `archive_template`
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* - `author_template`
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* - `category_template`
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* - `date_template`
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* - `frontpage_template`
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* - `home_template`
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* - `index_template`
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* - `page_template`
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* - `privacypolicy_template`
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* - `search_template`
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* - `single_template`
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* - `singular_template`
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* - `tag_template`
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* - `taxonomy_template`
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*
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* Don't include `attachment`, `embed`, `paged` because they aren't modified on TB.
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*/
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$default_template_slugs = array(
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'index',
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'home',
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'front-page',
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'singular',
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'single',
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'page',
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'archive',
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'author',
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'category',
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'taxonomy',
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'date',
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'tag',
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'search',
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'privacy-policy',
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'404',
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);
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$template_slugs = $default_template_slugs;
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// Use `get_default_block_template_types` result if it exists.
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if ( function_exists( 'get_default_block_template_types' ) ) {
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$template_types = (array) get_default_block_template_types();
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if ( isset( $template_types['attachment'] ) ) {
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unset( $template_types['attachment'] );
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}
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$template_slugs = ! empty( $template_types ) ? array_keys( $template_types ) : $default_template_types;
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}
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return $template_slugs;
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}
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}
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ET_Builder_Block_Templates::instance();
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