From d24aed3efa313f2200538a5a4bfcdf76185226f8 Mon Sep 17 00:00:00 2001
From: Dennis Snell <dmsnell@git.wordpress.org>
Date: Wed, 24 Jan 2024 03:30:14 +0000
Subject: [PATCH] HTML API: Support INPUT tags.

Adds support for the following HTML elements to the HTML Processor:

 - INPUT

Previously this element was not supported and the HTML Processor would bail when encountering one. Now, with this patch applied, it will proceed to parse the HTML document.

Developed in https://github.com/WordPress/wordpress-develop/pull/5907
Discussed in https://core.trac.wordpress.org/ticket/60283

Props jonsurrell
See #60283


Built from https://develop.svn.wordpress.org/trunk@57343


git-svn-id: https://core.svn.wordpress.org/trunk@56849 1a063a9b-81f0-0310-95a4-ce76da25c4cd
---
 .../html-api/class-wp-html-processor.php      | 28 +++++++++++++++----
 wp-includes/version.php                       |  2 +-
 2 files changed, 23 insertions(+), 7 deletions(-)

diff --git a/wp-includes/html-api/class-wp-html-processor.php b/wp-includes/html-api/class-wp-html-processor.php
index f0c3b27b28..8a3f981ae6 100644
--- a/wp-includes/html-api/class-wp-html-processor.php
+++ b/wp-includes/html-api/class-wp-html-processor.php
@@ -101,18 +101,18 @@
  *
  *  - Containers: ADDRESS, BLOCKQUOTE, DETAILS, DIALOG, DIV, FOOTER, HEADER, MAIN, MENU, SPAN, SUMMARY.
  *  - Custom elements: All custom elements are supported. :)
- *  - Form elements: BUTTON, DATALIST, FIELDSET, LABEL, LEGEND, METER, PROGRESS, SEARCH.
+ *  - Form elements: BUTTON, DATALIST, FIELDSET, INPUT, LABEL, LEGEND, METER, PROGRESS, SEARCH.
  *  - Formatting elements: B, BIG, CODE, EM, FONT, I, PRE, SMALL, STRIKE, STRONG, TT, U, WBR.
  *  - Heading elements: H1, H2, H3, H4, H5, H6, HGROUP.
  *  - Links: A.
- *  - Lists: DD, DL, DT, LI, OL, LI.
- *  - Media elements: AUDIO, CANVAS, EMBED, FIGCAPTION, FIGURE, IMG, MAP, PARAM, PICTURE, SOURCE, VIDEO, TRACK.
+ *  - Lists: DD, DL, DT, LI, OL, UL.
+ *  - Media elements: AUDIO, CANVAS, EMBED, FIGCAPTION, FIGURE, IMG, MAP, PICTURE, SOURCE, TRACK, VIDEO.
  *  - Paragraph: BR, P.
- *  - Phrasing elements: AREA, ABBR, BDI, BDO, CITE, DATA, DEL, DFN, INS, MARK, OUTPUT, Q, SAMP, SUB, SUP, TIME, VAR.
+ *  - Phrasing elements: ABBR, AREA, BDI, BDO, CITE, DATA, DEL, DFN, INS, MARK, OUTPUT, Q, SAMP, SUB, SUP, TIME, VAR.
  *  - Sectioning elements: ARTICLE, ASIDE, HR, NAV, SECTION.
  *  - Templating elements: SLOT.
  *  - Text decoration: RUBY.
- *  - Deprecated elements: ACRONYM, BLINK, CENTER, DIR, ISINDEX, KEYGEN, LISTING, MULTICOL, NEXTID, SPACER.
+ *  - Deprecated elements: ACRONYM, BLINK, CENTER, DIR, ISINDEX, KEYGEN, LISTING, MULTICOL, NEXTID, PARAM, SPACER.
  *
  * ### Supported markup
  *
@@ -972,6 +972,23 @@ private function step_in_body() {
 				$this->state->frameset_ok = false;
 				return true;
 
+			/*
+			 * > A start tag whose tag name is "input"
+			 */
+			case '+INPUT':
+				$this->reconstruct_active_formatting_elements();
+				$this->insert_html_element( $this->state->current_token );
+				$type_attribute = $this->get_attribute( 'type' );
+				/*
+				 * > If the token does not have an attribute with the name "type", or if it does,
+				 * > but that attribute's value is not an ASCII case-insensitive match for the
+				 * > string "hidden", then: set the frameset-ok flag to "not ok".
+				 */
+				if ( ! is_string( $type_attribute ) || 'hidden' !== strtolower( $type_attribute ) ) {
+					$this->state->frameset_ok = false;
+				}
+				return true;
+
 			/*
 			 * > A start tag whose tag name is "hr"
 			 */
@@ -1024,7 +1041,6 @@ private function step_in_body() {
 			case 'HEAD':
 			case 'HTML':
 			case 'IFRAME':
-			case 'INPUT':
 			case 'LINK':
 			case 'MARQUEE':
 			case 'MATH':
diff --git a/wp-includes/version.php b/wp-includes/version.php
index e5910c4e1b..d94f363f0a 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '6.5-alpha-57342';
+$wp_version = '6.5-alpha-57343';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.