[cssom] styleSheets IDL attribute must exist on DocumentOrShadowRoot, not Document

[rniwa]

CSS OM spec should directly define styleSheets IDL attribute on DocumentOrShadowRoot interface to match the latest shadow DOM specification.

[rniwa]

@hayatoito @annevk

[annevk]

I suspect it's up to @zcorpan to define this?

[zcorpan]

Also https://drafts.csswg.org/cssom-view/#extensions-to-the-document-interface

[rniwa]

Yeah those CSS OM view methods are also supposed to be on DocumentOrShadowRoot interface.

[hayatoito]

Shadow DOM spec now defines the following methods on DocumentOrShadowRoot:
https://w3c.github.io/webcomponents/spec/shadow/#extensions-to-the-documentorshadowroot-mixin

partial interface DocumentOrShadowRoot {
    Selection?        getSelection();
    Element?          elementFromPoint(double x, double y);
    sequence<Element> elementsFromPoint(double x, double y);
    CaretPosition?    caretPositionFromPoint(double x, double y);
    readonly attribute Element?       activeElement;
    readonly attribute StyleSheetList styleSheets;
};

Out of them, it would be nice that CSS OM would define:

partial interface DocumentOrShadowRoot {
    readonly attribute StyleSheetList styleSheets;
};

CSS OM View should have:

partial interface DocumentOrShadowRoot {
    Element?          elementFromPoint(double x, double y);
    sequence<Element> elementsFromPoint(double x, double y);
    CaretPosition?    caretPositionFromPoint(double x, double y);
};

HTML Standard should have:

partial interface DocumentOrShadowRoot {
    readonly attribute Element?       activeElement;
};

..and Selection API should have:

partial interface DocumentOrShadowRoot {
    Selection?        getSelection();
};

[annevk]

activeElement should be in the HTML Standard I think.

[hayatoito]

Thanks. I am sorry for the wrong information. I have updated my comment directly.

[rniwa]

@emilio : could you fix this in CSS OM?

[emilio]

Yes, happy to.