1605956 - Invalidate scroll anchor less on visual viewport offset updates

Status: RESOLVED FIXED

(Core :: Layout: Scrolling and Overflow, defect)

Description

[Emilio Cobos Álvarez (:emilio)]

Part of the issue in bug 1605599 is that scroll anchoring "doesn't work" because of a sub-pixel visual viewport update.

But in this case it is silly to invalidate it because we're not even using the visual viewport to select scroll anchors.

Comment 1

[Emilio Cobos Álvarez (:emilio)]

Attachment: Bug 1605956 - Don't invalidate scroll anchor on visual viewport offset updates if visual viewport size is not set. r=botond,hiro

As we only use the offset if the visual viewport size is set.

Comment 2

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/6e7398f94515
Don't invalidate scroll anchor on visual viewport offset updates if visual viewport size is not set. r=botond

Comment 3

[Narcis Beleuzu [:NarcisB]]

https://hg.mozilla.org/mozilla-central/rev/6e7398f94515