diff --git a/source b/source index 9d0696e5ef7..9d3965bf3bc 100644 --- a/source +++ b/source @@ -3121,6 +3121,9 @@ a.setAttribute('href', 'https://example.com/'); // change the content attribute
  • Element interface
  • attachShadow() method.
  • An element's shadow root
    • +
  • A shadow root's mode
    • +
  • A shadow root's declarative member
    • +
  • The attach a shadow root algorithm
  • The retargeting algorithm
  • Node interface
  • NodeList interface
    • @@ -3233,7 +3236,8 @@ a.setAttribute('href', 'https://example.com/'); // change the content attribute callback
  • The encoding (herein the character encoding), - mode, and + mode, + allow declarative shadow roots, and content type of a Document
  • The distinction between XML documents and HTML documents
    • @@ -62973,6 +62977,8 @@ not-slash = %x0000-002E / %x0030-10FFFF
    Nothing (for clarification, see example).
    Content attributes:
    Global attributes
    +
    shadowrootmode
    +
    shadowrootdelegatesfocus
    Accessibility considerations:
    For authors.
    @@ -62984,6 +62990,8 @@ interface HTMLTemplateElement : HTMLElement { [HTMLConstructor] constructor(); readonly attribute DocumentFragment content; + [CEReactions] attribute DOMString shadowRootMode; + [CEReactions] attribute boolean shadowRootDelegatesFocus; };
    Uses HTMLTemplateElement.
    @@ -62994,6 +63002,36 @@ interface HTMLTemplateElement : HTMLElement {

    In a rendering, the template element represents nothing.

    +

    The shadowrootmode content attribute is an + enumerated attribute with the following keywords and states:

    + + + + + + + +
    Keyword + State + Brief description +
    open + open + The template element represents an open declarative shadow root. +
    closed + closed + The template element represents a closed declarative shadow root. +
    + +

    The shadowrootmode attribute's invalid value default and missing value default are both the none state.

    + +

    The shadowrootdelegatesfocus content + attribute is a boolean attribute.

    +

    The template contents of a template element are not children of the element itself.

    @@ -63121,8 +63159,19 @@ interface HTMLTemplateElement : HTMLElement {

    The content IDL attribute must return the - template element's template contents.

    + data-x="dom-template-content">content getter steps are to return + template's template contents, if the template contents is + not a ShadowRoot node; otherwise null.

    + +

    The shadowRootMode IDL attribute + must reflect the shadowrootmode + content attribute, limited to only known values.

    + +

    The shadowRootDelegatesFocus IDL attribute + must reflect the shadowrootdelegatesfocus content + attribute.

    @@ -94895,6 +94944,10 @@ interface BeforeUnloadEvent : Event {
    about base URL
    creatorBaseURL
    + +
    allow declarative shadow + roots
    +
    true
    @@ -100808,6 +100861,10 @@ location.href = '#foo';
    about base URL
    navigationParams's about base URL
    + +
    allow declarative shadow + roots
    +
    true
    @@ -109695,8 +109752,8 @@ partial interface ShadowRoot { html:

      -

    1. Let newChildren be the result of the HTML fragment parsing algorithm - given contextElement and html.

      2. +

    2. Let newChildren be the result of the HTML fragment parsing + algorithm given contextElement, html, and true.

    3. Let fragment be a new DocumentFragment whose node document is contextElement's node document.

      4. @@ -109724,6 +109781,10 @@ partial interface ShadowRoot { is disabled.

      +

    4. Set document's allow declarative shadow roots to + true.

      5. +

    5. Parse HTML from a string given document and html.

      6. @@ -123642,12 +123703,39 @@ dictionary StorageEventInit : EventInit {
      +

      To insert an element at the adjusted insertion location with an element + element:

      + +
        +

      1. Let the adjusted insertion location be the appropriate place for + inserting a node.

        2. + +

      2. If it is not possible to insert element at the adjusted insertion + location, abort these steps.

        3. + +

      3. If the parser was not created as part of the HTML fragment parsing + algorithm, then push a new element queue onto element's + relevant agent's custom element reactions stack.

        4. + +

      4. Insert element at the adjusted insertion location.

        5. + +

      5. If the parser was not created as part of the HTML fragment parsing + algorithm, then pop the element queue from element's + relevant agent's custom element reactions stack, and invoke + custom element reactions in that queue.

        6. +
      + +

      If the adjusted insertion location cannot accept more elements, e.g., + because it's a Document that already has an element child, then element is + dropped on the floor.

      +

      When the steps below require the user agent to insert a foreign element for a token - in a given namespace, the user agent must run these steps:

      + in a given namespace and with a boolean onlyAddToElementStack, the user agent must run + these steps:

      1. Let the adjusted insertion location be the appropriate place for @@ -123660,27 +123748,8 @@ dictionary StorageEventInit : EventInit { parent being the element in which the adjusted insertion location finds itself.

        2. -
      2. -

        If it is possible to insert element at the adjusted insertion location, - then:

        - -
          -

        1. If the parser was not created as part of the HTML fragment parsing - algorithm, then push a new element queue onto element's - relevant agent's custom element reactions stack.

          2. - -

        2. Insert element at the adjusted insertion location.

          3. - -

        3. If the parser was not created as part of the HTML fragment parsing - algorithm, then pop the element queue from element's - relevant agent's custom element reactions stack, and invoke - custom element reactions in that queue.

          4. -
        - -

        If the adjusted insertion location cannot accept more - elements, e.g. because it's a Document that already has an element child, then - element is dropped on the floor.

        -
        3. +

      3. If onlyAddToElementStack is false, then run insert an element at the + adjusted insertion location with element.

      4. Push element onto the stack of open elements so that it is the new current node.

        5. @@ -123689,8 +123758,8 @@ dictionary StorageEventInit : EventInit {

      When the steps below require the user agent to insert an HTML element for a token, - the user agent must insert a foreign element for the token, in the HTML - namespace.

      + the user agent must insert a foreign element for the token, with the HTML + namespace and false.

      @@ -124388,7 +124457,7 @@ document.body.appendChild(text);
      A start tag whose tag name is "template"
      -

      Insert an HTML element for the token.

      +

      Let template start tag be the start tag.

      Insert a marker at the end of the list of active formatting elements.

      @@ -124401,6 +124470,81 @@ document.body.appendChild(text);

      Push "in template" onto the stack of template insertion modes so that it is the new current template insertion mode.

      + +

      Let the adjusted insertion location be the appropriate place for inserting + a node.

      + +

      Let intended parent be the element in which the adjusted insertion + location finds itself.

      + +

      Let document be intended parent's node document.

      + +

      If any of the following are false:

      + + + +

      then insert an HTML element for the token.

      + +

      Otherwise:

      + +
        +

      1. Let declarative shadow host element be adjusted current + node.

        2. + +

      2. Let template be the result of insert a foreign element + for template start tag, with HTML namespace and true.

        3. + +

      3. Let declarative shadow mode be template start tag's + shadowrootmode attribute.

        4. + +

      4. If template start tag had a + shadowrootdelegatesfocus + attribute, then let declarative shadow delegates focus be true. Otherwise let + it be false.

        5. + +

      5. Attach a shadow root with + declarative shadow host element, declarative shadow mode, true, + declarative shadow delegates focus, and "named".

        6. + +
      6. +

        If an exception was thrown by attach a + shadow root, then catch it, and run these steps:

        + +
          +

        1. Report the exception.

          2. + +

        2. Insert an element at the adjusted insertion location with + template.

          3. +
        +
        7. + +
      7. +

        Otherwise:

        + +
          +

        1. Let shadow be declarative shadow host element's + shadow root.

          2. + +

        2. Set shadow's + declarative to true.

          3. + +

        3. Set template's template contents property to + shadow.

          4. + +

        4. Set shadow's available to element internals to true.

          5. +
        +
        8. +
      An end tag whose tag name is "template"
      @@ -125487,8 +125631,8 @@ document.body.appendChild(text);

      Adjust foreign attributes for the token. (This fixes the use of namespaced attributes, in particular XLink.)

      -

      Insert a foreign element for the token, in the MathML - namespace.

      +

      Insert a foreign element for the token, with MathML namespace + and false.

      Mason Mize, Mathias Bynens, Mathieu Henri,