diff --git a/source b/source index c08f45cedaf..53b88ce4931 100644 --- a/source +++ b/source @@ -3757,6 +3757,12 @@ a.setAttribute('href', 'https://example.com/'); // change the content attribute + +

The following term is defined in CSS Containment:

+ + @@ -57102,7 +57108,7 @@ interface HTMLDetailsElement : HTMLElement {
  1. -

    While currentNode has a parent node:

    +

    While currentNode has a parent node within the flat tree:

    1. @@ -57114,14 +57120,14 @@ interface HTMLDetailsElement : HTMLElement { currentNode is slotted into.

    2. If the open attribute is not set on - currentNode, then Set + currentNode, then set the open attribute on currentNode to the empty string.

  2. Otherwise, set currentNode to the parent node of - currentNode within the flat tree.

    3. . + currentNode within the flat tree.

@@ -76169,14 +76175,20 @@ body { display:none } can navigate through the matches by advancing the active match using the find-in-page interface.

+

Issue #3539 tracks + standardizing how find-in-page underlies the currently-unspecified window.find() API.

+ +

Interaction with details

+

When find-in-page begins searching for matches, all details elements in the page - which do not have their open attribute set should have the - skipped contents of their - second slot become accessible. without modifying the open - attribute in order to make find-in-page able to search through it. After find-in-page finishes - searching for matches, those details elements should have their contents become - skipped again. This entire process must happen synchronously (and so is not observable to users or - to author code).

+ which do not have their open attribute set should have + the skipped contents of their second slot become + accessible, without modifying the open attribute, in + order to make find-in-page able to search through it. After find-in-page finishes searching for + matches, those details elements should have their contents become skipped again. + This entire process must happen synchronously (and so is not observable to users or to author + code).

When find-in-page chooses a new active match, perform the following steps:

@@ -76190,10 +76202,6 @@ body { display:none } revealing algorithm on node.

-

Issue #3539 tracks - standardizing how find-in-page underlies the currently-unspecified window.find() API.

-

Interaction with selection

The find-in-page process is invoked in the context of a document, and may have an effect on @@ -115873,12 +115881,18 @@ details[open] > summary { expected to allow the user to request the details be shown or hidden.

The details element's second slot is expected - to have its style attribute set to "display:block; - content-visibility:hidden" when the details element does not have an open attribute. When it does have the style attribute set to "display: + block; content-visibility: hidden; when the details element does not have an + open attribute. When it does have the open attribute, the style attribute is expected to be removed from the second slot.

+

Because the slots are hidden inside a shadow tree, this style attribute is not directly visible to author code, and alternate + implementation strategies are possible. Its impacts, however, are visible. Notably, the choice of + content-visibility: hidden instead of, e.g., display: + none, impacts the results of various APIs that query layout information.

+ @@ -123920,6 +123934,9 @@ INSERT INTERFACES HERE
[CSSCASCADE]
CSS Cascading and Inheritance, E. Etemad, T. Atkins. W3C.
+
[CSSCONTAIN]
+
CSS Containment, T. Atkins, F. Rivoal, V. Levin. W3C.
+
[CSSCOLOR]
CSS Color Module, T. Çelik, C. Lilley, L. Baron. W3C.