For example, inline elements may have container-type:size but they don't
support size containment, so @container(width >= 0) shouldn't match.
Differential Revision: https://phabricator.services.mozilla.com/D163936
'container-type' and 'content-visibility' can trigger various kinds of
containment, but this was done via nsStyleDisplay::EffectiveContainment,
to avoid affecting the computed value of 'contain'.
This was fine except for style containment, which needs to set the flag
SELF_OR_ANCESTOR_HAS_CONTAIN_STYLE in order to really work, but this was
only done with 'contain: style'.
So this patch removes nsStyleDisplay::EffectiveContainment, and instead
uses two fields for containment: mContain and mEffectiveContainment.
This is somewhat analogous to mDisplay and mOriginalDisplay, though in
that case the computed value is the modified display.
Also fixes a typo in IsContainStyle() that made it return true for any
kind of containment, not just for style containment.
Differential Revision: https://phabricator.services.mozilla.com/D163779
This makes relatively simple changes so that we check lowercase-ness of
local-name selectors first. If so, we don't need to check whether we're
an HTML element in an HTML document, which requires a fair bit of
pointer-chasing.
Differential Revision: https://phabricator.services.mozilla.com/D163627
This doesn't seem necessary anymore. It was originally added to disable
unions, which is now done with disable_untagged_union.
Differential Revision: https://phabricator.services.mozilla.com/D163662
And hide internal but used values. System fonts are not exposed in the
computed style so this should be fine.
If we need the old values for some obscure reason, it's trivial to alias
them to e.g., menu or so.
Differential Revision: https://phabricator.services.mozilla.com/D163269
It's unclear to me when they were disabled, but we do want to enable
these as otherwise there's no way to catch bindgen issues that can end
up in subtle bugs at best, or memory corruption at worst.
Differential Revision: https://phabricator.services.mozilla.com/D162997
This reduces the weird interactions that can appear on menus.
This also progresses BiDi support, including for accesskeys.
Differential Revision: https://phabricator.services.mozilla.com/D161498
This is the start of the organization of types that are in their own
crates in order to break dependency cycles between other crates. The
idea here is that putting these packages into their own directory is the
first step toward cleaning them up. They have grown organically and it
is difficult to explain to new folks where to put new shared types. Many
of these crates contain more than traits or don't contain traits at all.
Notably, `script_traits` isn't touched because it is vendored from
Gecko. Eventually this will move to `third_party`.
The @page rule may contain both 'page-orientation' and 'size' properties. The
'size' property can contain an orientation component which was being
represented as 'PageOrientation' prior to this patch. This patch changes that
to 'PageSizeOrientation' so that 'PageOrientation' can be used for
'page-orientation' in a subsequent patch.
Differential Revision: https://phabricator.services.mozilla.com/D160790
It was made a bitfield so that we could include style. But then style
containment was removed and the bitfield keeps causing us to do wrong
check (since INLINE_SIZE intersects SIZE).
So just make it an enum. This causes a progression and a test that
failed now times out (which is a pre-existing issue, just like the
pseudo-elements test that times out).
Differential Revision: https://phabricator.services.mozilla.com/D160371
Much like invalidated_descendants. This preserves our invariant that we
only visit elements with data in the post-traversal.
Differential Revision: https://phabricator.services.mozilla.com/D160338
