Bug 1856682 [wpt PR 42315] - Fix :dir() selector and updates for dir=…

…auto and descendant directionality to consider non-HTML elements., a=testonly

Automatic update from web-platform-tests
Fix :dir() selector and updates for dir=auto and descendant directionality to consider non-HTML elements.

This changes behavior only when the CSSPseudoDir flag is enabled.

This is based on the proposed behavior described in:
whatwg/html#3699 (comment)
which is in the process of being specified in:
whatwg/html#9554
whatwg/html#9796
and on the behavior specified in:
https://drafts.csswg.org/selectors-4/#the-dir-pseudo

Bug: 576815
Change-Id: I57323aeda8850f382756cd36b3717d34e8911f5e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4908695
Commit-Queue: David Baron <dbaronchromium.org>
Reviewed-by: Di Zhang <dizhanggchromium.org>
Cr-Commit-Position: refs/heads/main{#1204886}

--

wpt-commits: 9c46bae54706a175a99a9f127a4a8065704c2cc2
wpt-pr: 42315

UltraBlame original commit: 28cd492bf06128adefbd727f510e3773c4c531ab

testing/web-platform/tests/html/dom/elements/global-attributes/dir-assorted.window.js

@@ -197,6 +197,36 @@ rtl
 )
 )
 ;
+ele
+.
+dir
+=
+"
+ltr
+"
+;
+assert_true
+(
+ele2
+.
+matches
+(
+"
+:
+dir
+(
+ltr
+)
+"
+)
+"
+direction
+after
+dynamic
+change
+"
+)
+;
 }
 "
 Element
@@ -274,6 +304,36 @@ rtl
 )
 )
 ;
+ele
+.
+dir
+=
+"
+ltr
+"
+;
+assert_true
+(
+ele2
+.
+matches
+(
+"
+:
+dir
+(
+ltr
+)
+"
+)
+"
+direction
+after
+dynamic
+change
+"
+)
+;
 }
 "
 Non
@@ -443,3 +503,189 @@ document
 "
 )
 ;
+test
+(
+(
+)
+=
+>
+{
+const
+ele
+=
+document
+.
+createElement
+(
+"
+foobar
+"
+)
+;
+ele
+.
+dir
+=
+"
+auto
+"
+;
+const
+ele2
+=
+document
+.
+createElementNS
+(
+"
+foobar
+"
+"
+foobar
+"
+)
+;
+ele
+.
+append
+(
+ele2
+)
+;
+const
+text
+=
+document
+.
+createTextNode
+(
+"
+\
+u05D0
+\
+u05D1
+\
+u05D2
+"
+)
+;
+ele2
+.
+append
+(
+text
+)
+;
+assert_true
+(
+ele
+.
+matches
+(
+"
+:
+dir
+(
+rtl
+)
+"
+)
+"
+is
+RTL
+before
+change
+"
+)
+;
+assert_true
+(
+ele2
+.
+matches
+(
+"
+:
+dir
+(
+rtl
+)
+"
+)
+"
+child
+is
+RTL
+before
+change
+"
+)
+;
+text
+.
+data
+=
+"
+ABC
+"
+;
+assert_true
+(
+ele
+.
+matches
+(
+"
+:
+dir
+(
+ltr
+)
+"
+)
+"
+is
+LTR
+after
+change
+"
+)
+;
+assert_true
+(
+ele2
+.
+matches
+(
+"
+:
+dir
+(
+ltr
+)
+"
+)
+"
+child
+is
+LTR
+after
+change
+"
+)
+;
+}
+"
+Non
+-
+HTML
+element
+text
+contents
+influence
+dir
+=
+auto
+"
+)
+;