From 4c4404a0a366f00dbe1dc33fcdec0e5c50171d56 Mon Sep 17 00:00:00 2001
From: Marcos Caceres <marcos@marcosc.com>
Date: Tue, 1 Nov 2022 16:22:03 +1300
Subject: [PATCH] Pre-apply orientation lock via FullscreenOptions

---
 fullscreen.bs | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/fullscreen.bs b/fullscreen.bs
index 877f192..4712faf 100644
--- a/fullscreen.bs
+++ b/fullscreen.bs
@@ -172,6 +172,7 @@ enum FullscreenNavigationUI {
 
 dictionary FullscreenOptions {
   FullscreenNavigationUI navigationUI = "auto";
+  OrientationLockType orientation;
 };
 
 partial interface Element {
@@ -210,6 +211,11 @@ partial interface mixin DocumentOrShadowRoot {
   free to honor user preference over the application's. The default value
   "{{FullscreenNavigationUI/auto}}" indicates no application preference.
 
+  When supplied, <var>options</var>'s {{FullscreenOptions/orientation}} member indicates whether
+  the screen should be locked to the given [=screen orientation=]. User agents are always
+  free to honor user preference over the application's. When the value is missing,
+  no orientation lock is applied.
+
  <dt><code><var>document</var> . {{Document/fullscreenEnabled}}</code>
  <dd><p>Returns true if <var>document</var> has the ability to display <a>elements</a> fullscreen
  and <a>fullscreen is supported</a>, or false otherwise.
@@ -275,7 +281,8 @@ are:
  <li>
   <p>If <var>error</var> is false, then resize <var>pendingDoc</var>'s
   <a>top-level browsing context</a>'s <a>active document</a>'s viewport's dimensions, optionally
-  taking into account <var>options</var>["{{FullscreenOptions/navigationUI}}"]:
+  taking into account <var>options</var>["{{FullscreenOptions/orientation}}"] and
+  <var>options</var>["{{FullscreenOptions/navigationUI}}"]:
   <!-- cross-process -->
 
   <table>