1695070 - OverscrollHandoffChain::ScrollingDownWillMoveDynamicToolbar needs to consider overscroll-behavior property and the target container is covered by the toolbar are or not

Status: NEW

(Core :: Panning and Zooming, defect)

Description

[Hiroyuki Ikezoe (:hiro)]

Attachment: 50vh height overscroll-behavior:none container

This is a follow-up issue.

Attaching file has a 50vh height scrollable element but its scroll-behavior is none, but swiping down on the element moves the dynamic toolbar, it shouldn't move.

I am going to attach a similar example, in the case the toolbar should move.

Comment 1

[Hiroyuki Ikezoe (:hiro)]

Attachment: 100vh height overscroll-behavior:none

Here is another example. In this case 100vh height scrollable element whose overscroll-behavior is none. In this case, swiping down on the element should move the dynamic toolbar if the scroll position is at the bottom edge, otherwise there are unreachable area by normal swipe motions.

Comment 2

[Hiroyuki Ikezoe (:hiro)]

Given that WebKit doesn't support overscroll-behavior yet, which means the first example moves the dynamic toolbar on mobile Safai, so as of now this is not high priority I think.