[BUGFIX] Allow <figure> tag outside of paragraph tags

<figure> is allowed in HTML5 outside of paragraphs,
thus it should also be configured like that out-of-the-box

See https://developer.mozilla.org/en-US/docs/Web/HTML/Element/figure

Since CKEditor5 is using <figure> around tables, and also
might add a <figcaption> both variants are now enabled by default.

Resolves: #99273
Releases: main, 11.5, 10.4
Change-Id: I9356cc13ccef764f475ba42cc47f43f7ecd624a1
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/76923
Tested-by: Frank Nägler <frank.naegler@typo3.com>
Reviewed-by: Stefan Bürk <stefan@buerk.tech>
Tested-by: Benni Mack <benni@typo3.org>
Tested-by: Stefan Bürk <stefan@buerk.tech>
Tested-by: core-ci <typo3@b13.com>
Reviewed-by: Benni Mack <benni@typo3.org>
Reviewed-by: Frank Nägler <frank.naegler@typo3.com>

typo3/sysext/core/Classes/Html/RteHtmlParser.php

@@ -42,13 +42,13 @@ class RteHtmlParser extends HtmlParser implements LoggerAwareInterface
      * List of elements that are not wrapped into a "p" tag while doing the transformation.
      * @var string
      */
-    protected $blockElementList = 'DIV,TABLE,BLOCKQUOTE,PRE,UL,OL,H1,H2,H3,H4,H5,H6,ADDRESS,DL,DD,HEADER,SECTION,FOOTER,NAV,ARTICLE,ASIDE';
+    protected $blockElementList = 'DIV,TABLE,BLOCKQUOTE,PRE,UL,OL,H1,H2,H3,H4,H5,H6,ADDRESS,DL,DD,HEADER,SECTION,FOOTER,NAV,ARTICLE,ASIDE,FIGURE';
 
     /**
      * List of all tags that are allowed by default
      * @var string
      */
-    protected $defaultAllowedTagsList = 'b,i,u,a,img,br,div,center,pre,font,hr,sub,sup,p,strong,em,li,ul,ol,blockquote,strike,span,abbr,acronym,dfn';
+    protected $defaultAllowedTagsList = 'b,i,u,a,img,br,div,center,pre,figure,figcaption,font,hr,sub,sup,p,strong,em,li,ul,ol,blockquote,strike,span,abbr,acronym,dfn';
 
     /**
      * Set to the TSconfig options coming from Page TSconfig
@@ -111,6 +111,8 @@ class RteHtmlParser extends HtmlParser implements LoggerAwareInterface
         'blockquote',
         'div',
         'footer',
+        'figure',
+        'figcaption',
         'header',
         'hr',
         'nav',

typo3/sysext/core/Tests/Unit/Html/RteHtmlParserTest.php

@@ -25,7 +25,7 @@ class RteHtmlParserTest extends UnitTestCase
 {
     protected bool $resetSingletonInstances = true;
 
-    protected array $procOptions = ['overruleMode' => 'default', 'allowTagsOutside' => 'hr,abbr'];
+    protected array $procOptions = ['overruleMode' => 'default', 'allowTagsOutside' => 'hr,abbr,figure'];
 
     /**
      * Data provider for hrTagCorrectlyTransformedOnWayToDataBase
@@ -743,4 +743,15 @@ public function allowTagsOutsidePreventsWrappingTaginPTag(): void
         self::assertEquals('<abbr>Allowed outside of p-tag</abbr>', $subject->transformTextForRichTextEditor('<abbr>Allowed outside of p-tag</abbr>', $this->procOptions));
         self::assertEquals('<p><span>Not allowed outside of p-tag</span></p>', $subject->transformTextForRichTextEditor('<span>Not allowed outside of p-tag</span>', $this->procOptions));
     }
+
+    /**
+     * @test
+     */
+    public function tableAndFigureApplyCorrectlyOutsideOfParagraphTags(): void
+    {
+        $eventDispatcher = $this->createMock(EventDispatcherInterface::class);
+        $subject = new RteHtmlParser($eventDispatcher);
+        self::assertEquals('<figure class="table">' . CRLF . '<table>Allowed outside of p-tag</table>' . CRLF . '</figure>', $subject->transformTextForRichTextEditor('<figure class="table">' . CRLF . '<table>Allowed outside of p-tag</table>' . CRLF . '</figure>', $this->procOptions));
+        self::assertEquals('<figure class="table">' . CRLF . '<table>Allowed outside of p-tag</table>' . CRLF . '<figcaption>My Logo</figcaption></figure>', $subject->transformTextForRichTextEditor('<figure class="table">' . CRLF . '<table>Allowed outside of p-tag</table>' . CRLF . '<figcaption>My Logo</figcaption></figure>', $this->procOptions));
+    }
 }

typo3/sysext/rte_ckeditor/Configuration/RTE/Processing.yaml

@@ -27,6 +27,7 @@ processing:
     - dt
     - em
     - figure
+    - figcaption
     - footer
     - header
     - h1
@@ -66,7 +67,7 @@ processing:
     - var
 
   ## Tags that are allowed outside of paragraphs
-  allowTagsOutside: [address, article, aside, blockquote, figure, footer, header, hr, nav, section, div]
+  allowTagsOutside: [address, article, aside, blockquote, figure, figcaption, footer, header, hr, nav, section, div]
 
   ## allowed default attributes
   allowAttributes: [class, id, title, dir, lang, xml:lang, itemscope, itemtype, itemprop]