Toolbar layout properties, notably --urlbar-container-height, is
re-computed when window modal dialog is closed and the values would be
totally incorrect if the toolbars are hidden at that time. This fixes#582
and likely several other issues as well.
Previously we were showing tabs toolbar when the whole toolbox became hovered
which would make using bookmarks and navigation toolbars pretty annoying.
This makes tabs scrollboxes have display:contents and thus makes tabs
use tabbrowser-tabs as their parent container.
Reason being that in firefox 141 the pinned tabs are moved to separate
scrollbox which would then have it's own display block.
Fixes#551
We already apply computed top margin to notification popup and
permission popup so that they are visible. But it seems that if the
panel is close enough to screen bottom edge (such as in maximized
windows) then the panel contents fail typically fail to render. For
whatever reason, changing the default margin for
customizationui-widget-panel makes the failures much less frequent
although it doesn't appear to get rid of the issue completely.
When the user exits customize mode, Firefox re-evaluates urlbar
dimensions and the result ends up with --urlbar-height becoming 0px
since the urlbar gets hidden.
The input box uses --urlbar-height to calculate its block padding which
in turn evaluates to full urlbar-height - thus making the contents of
input-box 0px leading to "invisible" input-box.
As a workaround we now clamp the padding-block calculation to 4px.
If bookmarks toolbar is empty (except for the flex space) the
empty-toolbar indicator element is visible, which causes the flex-space
to be be center-aligned - this is simply fixed with order: -1
In addition, when letterboxing is enabled and window is somewhat narrow,
the Done ::before pseudo can cause the statuspanel to be wider that the
<browser> element, which causes the <browser> to move when links are
being hovered. So lets just make the Done label absolute.
We have removed custom browser top margin in fullscreen mode, but it
actually needs to apply in fullscreen mode if toolbars are not
autohidden using built-in Firefox fullscreen mechanism.
