2069709 - Open the New Tab search bar's results above the input when there is no room below

Status: NEW

(Firefox :: Address Bar, enhancement, P3)

Description

[Dão Gottwald [:dao]]

The New Tab search bar renders in the page, where the top layer is clipped by the viewport, so the results only have the space below the input to work with. Near the bottom of a short window that leaves a couple of rows. It should open above the input when the room there is larger.

Which side it opens on wants to be settled when the results open and held until they close, so a result arriving doesn't move the list across the input while the user is typing.

position-try-fallbacks can't express this: it tests an option for overflow against the position area, whose extent follows the scrolled canvas, so on a page that scrolls at all a box reaching past the viewport still counts as fitting.

Comment 1

[Dão Gottwald [:dao]]

Attachment: WIP: Bug 2069709 - Open the New Tab search bar's view above the input when there is no room below.

Which side it opens on is settled when the popover opens and holds until it closes, so a result arriving doesn't move the list across the input mid-typing. The clamp comes from the same measurement, replacing the one bug 2022527 ports.