From a8063b8b4b692a741f57fa69c58b4daa2f7d19f6 Mon Sep 17 00:00:00 2001
From: elomscansio <163124154+elomscansio@users.noreply.github.com>
Date: Thu, 27 Mar 2025 18:20:42 +0100
Subject: [PATCH] =?UTF-8?q?fix(parser):=20Set=20shadow=E2=80=99s=20availab?=
 =?UTF-8?q?le=20to=20element=20internals=20in=20attach=5Fdeclarative=5Fsha?=
 =?UTF-8?q?dow=20(#36173)?=
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Aligns the implementation with step 8.5 of the HTML spec for parsing
a <template> element in the InHead state by setting
shadow_root.set_available_to_element_internals(true) after
assigning the shadow root to the template’s contents.

Also removes tests/wpt/meta/shadow-dom/declarative/declarative-shadow-dom-available-to-element-internals.html.ini
since the test expectations are now updated accordingly.

Spec reference: https://html.spec.whatwg.org/multipage/#parsing-main-inhead

Signed-off-by: Emmanuel Elom <elomemmanuel007@gmail.com>
---
 components/script/dom/servoparser/mod.rs                       | 3 +++
 ...larative-shadow-dom-available-to-element-internals.html.ini | 3 ---
 2 files changed, 3 insertions(+), 3 deletions(-)
 delete mode 100644 tests/wpt/meta/shadow-dom/declarative/declarative-shadow-dom-available-to-element-internals.html.ini

diff --git a/components/script/dom/servoparser/mod.rs b/components/script/dom/servoparser/mod.rs
index 2d6b117822a..0c5c40c31da 100644
--- a/components/script/dom/servoparser/mod.rs
+++ b/components/script/dom/servoparser/mod.rs
@@ -1477,6 +1477,9 @@ impl TreeSink for Sink {
                 let shadow = shadow_root.upcast::<DocumentFragment>();
                 template_element.set_contents(Some(shadow));
 
+                // Step 8.5. Set shadow’s available to element internals to true.
+                shadow_root.set_available_to_element_internals(true);
+
                 Ok(())
             },
             Err(_) => Err(String::from("Attaching shadow fails")),
diff --git a/tests/wpt/meta/shadow-dom/declarative/declarative-shadow-dom-available-to-element-internals.html.ini b/tests/wpt/meta/shadow-dom/declarative/declarative-shadow-dom-available-to-element-internals.html.ini
deleted file mode 100644
index 1e5c4518079..00000000000
--- a/tests/wpt/meta/shadow-dom/declarative/declarative-shadow-dom-available-to-element-internals.html.ini
+++ /dev/null
@@ -1,3 +0,0 @@
-[declarative-shadow-dom-available-to-element-internals.html]
-  [Declarative Shadow DOM: shadow root should be available to element internals]
-    expected: FAIL