This is the easy fix.
The hard fix (outlined in the comment) would be nice, but I don't think this bug
alone justifies it.
Differential Revision: https://phabricator.services.mozilla.com/D38184
And remove some of the ::placeholder and ::cue hacks where we need to use
!important to make the property not apply for content but apply on UA sheets.
The comment about the white-space property was wrong, we don't enforce it with
!important in the UA stylesheets for <input> (we do for <textarea> though), so
I've kept the flag since it really applies.
Differential Revision: https://phabricator.services.mozilla.com/D37717
Now if you add a new inherited, pref-controlled property, you must
declare whether it can have an effect on scrollbar styles. If no,
then the property will be skipped in the assertions that check
whether our cached styles are equal to those we would compute.
Differential Revision: https://phabricator.services.mozilla.com/D37507
According to this resolved spec issue:
https://github.com/w3c/csswg-drafts/issues/2140,
we retire the 3-valued <position> on
1. `object-position`
2. `perspective-origin`,
3. `mask-position`
4. `circle()` and `ellipse()`
, but still keep the support for `background-position`.
Besides, I simply run this python script to generate the .ini file:
```
s = sys.argv[1] + ".ini"
with open(s, "w") as f:
f.write('[{}]\n'.format(sys.argv[1]))
f.write(' expected: FAIL\n')
f.write(' bug: https://bugzilla.mozilla.org/show_bug.cgi?id=1559276\n')
```
Differential Revision: https://phabricator.services.mozilla.com/D37126
We clamp earlier (parse time rather than computed value time), but that's the
only behavior change, which I think doesn't really matter.
Differential Revision: https://phabricator.services.mozilla.com/D35198
Option<> is not FFI-safe, so if we want to use the same representation
everywhere we need to get rid of it. This also makes it take the same amount of
memory as the C++ representation, and it's not very complex, I'd think.
Differential Revision: https://phabricator.services.mozilla.com/D35195
This doesn't change the way C++ code uses static prefs. But it does slightly
change how Rust code uses static prefs, specifically the name generated by
bindgen is slightly different.
The commit also improves some comments.
Differential Revision: https://phabricator.services.mozilla.com/D35764
The style system already atomizes all CustomIdent values, which means that we're
just wasting memory and CPU by doing string copies all over the place.
This patch fixes it. This also simplifies further changes to use as much of the
rust data structures as possible.
I had to switch from nsTHashtable to mozilla::HashTable because the former
doesn't handle well non-default-constructible structs (like NamedLine, which
now has a StyleAtom, which is not default-constructible).
Differential Revision: https://phabricator.services.mozilla.com/D35119
Right now we do a lot of useless string copying. In order to avoid transcoding
to utf-16 during layout, make sure to use nsCString at a few related places.
I may revisit this since we're storing other line names as atoms in some places.
So it may be better to just use atoms everywhere.
But that'd be a different patch either way.
Differential Revision: https://phabricator.services.mozilla.com/D35117
From this point on, the webkit-prefixed CSS features that were previously
protected by this pref will now be unconditionally enabled.
Differential Revision: https://phabricator.services.mozilla.com/D33807
