Flexbox model will replace old xul box as the default display model so
this patch adds support for that in a whole bunch of styles.
A lot of style rules are marked as "Fx < 112 compatibility" rules and
those can be removed when 112 hits release.
This patch patch makes the link generator handle "+" characters in the
filename.
Additionally, file-target list should now have more-correct grid-layout
without producing overflowing rows.
The category list is fixed-positioned sidebar which hopefully makes
mobile rendering work better than before.
This patch makes tag-browser layout somewhat usable on mobile.
Additionally it adds few banner hints to use Ctrl keys and basic hint to
select a category when empty.
This also makes the Copy-button hidden until some content is shown in
code-block.
This patch "unhides" tabs scrollbox overflow indicators as well as adds
background for scrollbuttons when re-oredering tabs. Both of these are
pretty complicated things to achieve, so this patch also adds a small
compatibility layer for non_floating_sharp_tabs.css
browser-bottombox doesn't exist anymore so create space using
body::after instead. This patch additionally fixes various alignment
issues with elements in the statusbar.
There is still one(known?) case that happens if one uses a theme with
non-opaque toolbar background-color with optional extra-border rules.
But that option isn't too nice with non-opaque colors anyway so left as
todo.
In addition, this patch makes the optional rules use @supports
-moz-bool-pref rules instead of having to remove commented sections in
the css file.
Normally web-content hides the real statusbar but with RFP letterboxing
that might not happen. So lets inherit the background-color from
tabbrowser-tabpanels to make sure it's covered properly.
This patch changes how we deal with window control buttons on left
layouts. Previously, we looked to a pref that was only set on macos
but with this patch we use media queries to detect whether the system
is macOS or gtk-csd buttons use left-side layout.
To support old-style "override pref" this patch also introduces a
new custom pref userchrome.force-window-controls-on-left.enabled
which can be used e.g on Windows to move window controls to left side.
This logic is currently only supported in styles that use
window_control_placeholder_support.css
