In a similar way to Position, now specified and computed gradients share
a common Gradient type defined in style::values::generics::image.
This allows us to reuse most code for many style traits like ToCss,
HasViewportPercentage and ToComputedValue.
The test changes are the fallout of the disappearance of AngleOrCorner::None,
which align our code to the spec for serialisation, where components that can
be omitted should be omitted.
We need another flag that represents allow-negative-number for SMIL, so
this enum will also comprise the another parsing mode that allows negative number.
Disallow negative duration for animation and transition
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A specified position is now a struct made of two values of different types,
the first one being PositionComponent<X>, and the second one PositionComponent<Y>.
A position component is represented by the new enum PositionComponent<Side>,
with the three values Center, Length(LengthOrPercentage), and
Side(Side, Option<LengthOrPercentage>).
Side keywords are represented by the X and Y enums, which don't include a value
for the center keyword anymore. They are accompanied by the Side trait, which
allows us to determine whether a side keyword is "left" or "top".
This refactor simplified the parsing and serialisation code and exposed bugs in it,
where it would reject valid <position> values followed by arbitrary tokens,
and where it would fail to prefer "left" to "right" when serialising positions
in basic shapes.
font-feature-settings gecko glue code
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FeatureTagValue value property changed to use u32. ToCss for
FeatureTagValue changed to allow conversion from u32 to string. Parse
for the same struct updated to convert from string to u32. Added two
functions to transfer settings to gecko and copy settings.
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FeatureTagValue value property changed to use u32. ToCss for
FeatureTagValue changed to allow conversion from u32 to string. Parse
for the same struct updated to convert from string to u32. Added two
functions to transfer settings to gecko and copy settings.
1. We add a new arm to TransitionProperty, TransitionProperty::Unsupported,
which contains an Atom, so it's better to remove the Copy trait from
TransitionProperty.
2. TransitionProperty::Unsupported(Atom) represents any non-animatable, custom,
or unrecognized property, and we use Atom to store the ident string for
serialization.
stylo: Add glue for contain property
In gecko, `size` and `content` values aren't implemented yet. So I had to disable these parts with mako. We will need to update the property and the glue once these are implemented in gecko.
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- [X] These changes fix [Bug 1354998](https://bugzilla.mozilla.org/show_bug.cgi?id=1354998)
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To simplify adding additional data to `ParserContext`, this moves test usages to
a few shared locations, instead of being spread across many tests.
MozReview-Commit-ID: 1OahV797eq
style: Do not immediately convert absolute specified lengths
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This PR aims to solve issue #15729. I tried to follow the recommendations there as much as possible.
This is my first attempt at contributing to Servo, so this will probably need a lot of input, although I'm eager to make it as polished as possible.
- The base inaccuracy issue seems solved, as can be easily verified with the `console.log` based example in the issue.
- Very basic unit tests were added.
I have doubts mainly about the right way to represent these new enum variants for the various length units:
1. With new enum variants in `NoCalcLength` *and* newtypes (current solution)
2. With a `NoCalcLength::Absolute` variant that contains a new `AbsoluteLength` enum, but without newtypes
3. Same as solution 2 but with newtypes
- I mostly cared about unit tests until now but will investigate other types of tests
- Tests to check the clamping
- Write a proper commit message
Thanks for your time and feedback :)
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The NoCalcLength::Absolute variant has been rewritten to accommodate
other units than Au with the new AbsoluteLength enum. This avoids loss
of precision for some operations.
The conversion from floating point absolute lengths to integer
application unit values adopts the same clamping limits as Gecko.
Stylo - support image-orientation property
First, we need to make Servo's image-orientation parser to be agreed with Gecko's.
Numbers without any AngleUnit, including unitless 0 angle, should be invalid
for image-orientation. However, rotate() and skew() for transform properties
accept unitless 0 angle. In order to make all these properties work properly,
I fixed Angle::parse() to match Gecko. For the existing users of Angle::parse(),
I create Angle::parse_with_unitless() and use it as an alternative for them.
Once https://github.com/w3c/csswg-drafts/issues/1162 is resolved, we shall be
able to use an unified version of Angle::parse() then.
The parser of image-orientation is also fixed to report parsing errors on
empty string.
Then, with the newly added binding functions support in Gecko side, we shall
reuse the same methods from Gecko to pass the computed value from Servo to Gecko.
Gecko bug: Bug 1341758
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First, we need to make Servo's image-orientation parser to be agreed with Gecko's.
Numbers without any AngleUnit, including unitless 0 angle, should be invalid
for image-orientation. However, rotate() and skew() for transform properties
accept unitless 0 angle. In order to make all these properties work properly,
I fixed Angle::parse() to match Gecko. For the existing users of Angle::parse(),
I create Angle::parse_with_unitless() and use it as an alternative for them.
Once https://github.com/w3c/csswg-drafts/issues/1162 is resolved, we shall be
able to use an unified version of Angle::parse() then.
The parser of image-orientation is also fixed to report parsing errors on
empty string.
Then, with the newly added binding functions support in Gecko side, we shall
reuse the same methods from Gecko to pass the computed value from Servo to Gecko.
Gecko bug: Bug 1341758
Preserve more information from transform function parsing.
Preserve angle unit while parsing.
Simplify SpecifiedMatrix.
Use the write! macro for formatting with a helper called Css.
Implement ToCss for &T if T implements ToCss.
Add some tests and update others.
closes#15194
initial-letter property
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Implemented parsing and serialization for the initial-letter property.
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