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LibWeb: Implement a simple version of Element.scrollIntoView()

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We parse the arguments that come in, but since we don't yet track
scrollable overflow, we can't do the full "scroll an element into view"
algorithm. For now, we just call out to the PageClient and ask it to
bring the nearest principal box into the visible viewport.
This commit is contained in:
Andreas Kling 2022-10-04 19:52:25 +02:00
parent 3ca44e2258
commit 162e4179fc
3 changed files with 103 additions and 0 deletions
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14
Userland/Libraries/LibWeb/DOM/Element.idl
View file

@ -9,6 +9,17 @@
#import <Geometry/DOMRect.idl>
#import <Geometry/DOMRectList.idl>
enum ScrollBehavior { "auto", "smooth" };
dictionary ScrollOptions {
ScrollBehavior behavior = "auto";
};
enum ScrollLogicalPosition { "start", "center", "end", "nearest" };
dictionary ScrollIntoViewOptions : ScrollOptions {
ScrollLogicalPosition block = "start";
ScrollLogicalPosition inline = "nearest";
};
// https://dom.spec.whatwg.org/#element
interface Element : Node {
readonly attribute DOMString? namespaceURI;
@ -56,6 +67,9 @@ interface Element : Node {
[CEReactions] Element? insertAdjacentElement(DOMString where, Element element);
undefined insertAdjacentText(DOMString where, DOMString data);
[CEReactions] undefined insertAdjacentHTML(DOMString position, DOMString text);
undefined scrollIntoView(optional (boolean or ScrollIntoViewOptions) arg = {});
};
Element includes ParentNode;