From 63e631ebd34f40d702adfb61fe00a5c9631ba443 Mon Sep 17 00:00:00 2001
From: Morgan Klonteig <morgan.klonteig@scalepad.com>
Date: Thu, 21 Nov 2024 20:46:53 -0800
Subject: [PATCH] feat: Add CSS direction support (#429)

---
 library/HTMLPurifier/CSSDefinition.php | 5 +++++
 tests/HTMLPurifier/AttrDef/CSSTest.php | 2 ++
 2 files changed, 7 insertions(+)

diff --git a/library/HTMLPurifier/CSSDefinition.php b/library/HTMLPurifier/CSSDefinition.php
index 3732c076..923d6f3d 100644
--- a/library/HTMLPurifier/CSSDefinition.php
+++ b/library/HTMLPurifier/CSSDefinition.php
@@ -26,6 +26,11 @@ class HTMLPurifier_CSSDefinition extends HTMLPurifier_Definition
             false
         );
 
+        $this->info['direction'] = new HTMLPurifier_AttrDef_Enum(
+            ['ltr', 'rtl'],
+            false
+        );
+
         $border_style =
             $this->info['border-bottom-style'] =
             $this->info['border-right-style'] =
diff --git a/tests/HTMLPurifier/AttrDef/CSSTest.php b/tests/HTMLPurifier/AttrDef/CSSTest.php
index 82e07bb6..049c56a5 100644
--- a/tests/HTMLPurifier/AttrDef/CSSTest.php
+++ b/tests/HTMLPurifier/AttrDef/CSSTest.php
@@ -13,6 +13,8 @@ class HTMLPurifier_AttrDef_CSSTest extends HTMLPurifier_AttrDefHarness
     {
         // regular cases, singular
         $this->assertDef('text-align:right;');
+        $this->assertDef('direction:ltr;');
+        $this->assertDef('direction:rtl;');
         $this->assertDef('border-left-style:solid;');
         $this->assertDef('border-style:solid dotted;');
         $this->assertDef('clear:right;');