Add Render Logic to BlockTemplateController (woocommerce#4984)

* Add render logic to BlockTemplatesController * Comment out action to test e2e tests * Add add_action back into initialise render method * Check function exists before using it * Change hook from wp to template_redirect * Update src/BlockTemplatesController.php Co-authored-by: Tung Du <[email protected]> Co-authored-by: Tung Du <[email protected]>
jonny-bull · Dec 14, 2021 · 6ae40c4 · 6ae40c4
1 parent bdcb130
commit 6ae40c4
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Showing 2 changed files with 35 additions and 1 deletion.
diff --git a/src/BlockTemplatesController.php b/src/BlockTemplatesController.php
@@ -37,6 +37,7 @@ public function __construct() {
 	 */
 	protected function init() {
 		add_filter( 'get_block_templates', array( $this, 'add_block_templates' ), 10, 3 );
+		add_action( 'template_redirect', array( $this, 'render_block_template' ) );
 	}
 
 	/**
@@ -105,4 +106,37 @@ public function theme_has_template( $template_name ) {
 		return is_readable( get_template_directory() . '/block-templates/' . $template_name . '.html' ) ||
 			is_readable( get_stylesheet_directory() . '/block-templates/' . $template_name . '.html' );
 	}
+
+	/**
+	 * Checks whether a block template with that name exists in Woo Blocks
+	 *
+	 * @param string $template_name Template to check.
+	 * @return boolean
+	 */
+	public function default_block_template_is_available( $template_name ) {
+		if ( ! $template_name ) {
+			return false;
+		}
+
+		return is_readable(
+			$this->templates_directory . '/' . $template_name . '.html'
+		);
+	}
+
+	/**
+	 * Renders the default block template from Woo Blocks if no theme templates exist.
+	 */
+	public function render_block_template() {
+		if ( is_embed() || ! function_exists( 'gutenberg_supports_block_templates' ) || ! gutenberg_supports_block_templates() ) {
+			return;
+		}
+
+		if (
+			is_singular( 'product' ) &&
+			! $this->theme_has_template( 'single-product' ) &&
+			$this->default_block_template_is_available( 'single-product' )
+		) {
+			add_filter( 'wc_has_block_template', '__return_true', 10, 0 );
+		}
+	}
 }
diff --git a/src/Utils/BlockTemplateUtils.php b/src/Utils/BlockTemplateUtils.php
@@ -83,7 +83,7 @@ public static function gutenberg_inject_theme_attribute_in_content( $template_co
 	 * @return WP_Block_Template Template.
 	 */
 	public static function gutenberg_build_template_result_from_file( $template_file, $template_type ) {
-		$default_template_types = gutenberg_get_default_template_types();
+		$default_template_types = function_exists( 'gutenberg_get_default_template_types' ) ? gutenberg_get_default_template_types() : array();
 		// phpcs:ignore WordPress.WP.AlternativeFunctions.file_get_contents_file_get_contents
 		$template_content = file_get_contents( $template_file['path'] );
 		$theme            = wp_get_theme()->get_stylesheet();