Fix quirks mode functionality

Author: sirreal

html-api-debugger/html-api-integration.php

@@ -18,7 +18,7 @@ function get_supports(): array {
 	return array(
 		'is_virtual' => $html_processor_rc->hasMethod( 'is_virtual' ),
 		'full_parser' => method_exists( WP_HTML_Processor::class, 'create_full_parser' ),
-		'quirks_mode' => $html_processor_state_rc->hasProperty( 'document_mode' ),
+		'quirks_mode' => $html_processor_rc->hasProperty( 'compat_mode' ),
 		'doctype' => method_exists( WP_HTML_Processor::class, 'get_doctype_info' ),
 		'normalize' => method_exists( WP_HTML_Processor::class, 'normalize' ),
 	);
@@ -63,10 +63,11 @@ function get_tree( string $html, array $options ): array {
 	if (
 		! $use_full_parser &&
 		( $options['quirks_mode'] ?? false ) &&
-		property_exists( WP_HTML_Processor_State::class, 'document_mode' ) &&
-		defined( WP_HTML_Processor_State::class . '::QUIRKS_MODE' )
+		property_exists( WP_HTML_Processor::class, 'compat_mode' ) &&
+		defined( WP_HTML_Processor::class . '::QUIRKS_MODE' )
 	) {
-		$processor_state->getValue( $processor )->document_mode = WP_HTML_Processor_State::QUIRKS_MODE;
+		$processor_compat_mode = new ReflectionProperty( WP_HTML_Processor::class, 'compat_mode' );
+		$processor_compat_mode->setValue( $processor, WP_HTML_Processor::QUIRKS_MODE );
 		$doctype_value = '';
 	}
 

html-api-debugger/interactivity.php

@@ -153,7 +153,7 @@ class="html-api-debugger-container html-api-debugger--grid"
 				<label>Show closers <input type="checkbox" data-wp-bind--checked="state.showClosers" <?php wp_on_directive( 'input', 'handleShowClosersClick' ); ?>></label>
 				<label>Show invisible <input type="checkbox" data-wp-bind--checked="state.showInvisible" <?php wp_on_directive( 'input', 'handleShowInvisibleClick' ); ?>></label>
 				<span data-wp-bind--hidden="!state.htmlapiResponse.supports.is_virtual"><label>Show virtual <input type="checkbox" data-wp-bind--checked="state.showVirtual" <?php wp_on_directive( 'input', 'handleShowVirtualClick' ); ?>></label></span>
-				<span data-wp-bind--hidden="!state.htmlapiResponse.supports.quirks_mode"><label>Quirks mode <input type="checkbox" data-wp-bind--checked="state.quirksMode" <?php wp_on_directive( 'input', 'handleQuirksModeClick' ); ?>></label></span>
+				<span data-wp-bind--hidden="!state.htmlapiResponse.supports.quirks_mode"><label>Quirks mode <input type="checkbox" data-wp-bind--checked="state.quirksMode" data-wp-bind--disabled="state.fullParser" <?php wp_on_directive( 'input', 'handleQuirksModeClick' ); ?>></label></span>
 				<span data-wp-bind--hidden="!state.htmlapiResponse.supports.full_parser"><label>Full parser <input type="checkbox" data-wp-bind--checked="state.fullParser" <?php wp_on_directive( 'input', 'handleFullParserClick' ); ?>></label></span>
 			</div>
 			<div>

html-api-debugger/readme.txt

@@ -13,6 +13,7 @@ Add a page to wp-admin for debugging the HTML API.
 
 = 2.0 =
 * Add ability to replay token processing.
+* Fix quirks mode fragment parsing.
 
 = 1.9 =
 * Update WordPress Playground links to use current query args.