Bug 262220

Summary:	testdriver-vendor.js uses an incorrect position for an action with an specified element origin
Product:	WebKit	Reporter:	Aditya Keerthi <akeerthi>
Component:	Tools / Tests	Assignee:	Abrar Rahman Protyasha <a_protyasha>
Status:	NEW ---
Severity:	Normal	CC:	a_protyasha, webkit-bug-importer
Priority:	P2	Keywords:	InRadar
Version:	Other
Hardware:	Unspecified
OS:	Unspecified

Description Aditya Keerthi 2023-09-27 15:27:51 PDT

The top-left is used: https://github.com/WebKit/WebKit/blob/main/LayoutTests/imported/w3c/web-platform-tests/resources/testdriver-vendor.js#L36

The spec says that the center should be used: https://www.w3.org/TR/webdriver2/#processing-actions

Comment 1 Radar WebKit Bug Importer 2023-09-27 15:38:54 PDT

<rdar://problem/116145770>

Comment 2 Abrar Rahman Protyasha 2023-09-28 15:12:13 PDT

As it turns out, currently we don't implement a sound interpretation of the `origin` value for the `viewport`/`pointer` cases. We do interpret `origin` when it is an Element, which is the third case in https://www.w3.org/TR/webdriver2/#processing-actions, but we do so incorrectly -- i.e. what the original bug report is about.

So really there's two feature bugs and one bug fix in here. I'll make sure to reflect that distinction in a not-so-distant patch.