Add support for keyword values for min-width and max-width
This is a follow-up to #14432 which got closed and can no longer be re-opened.
This PR aims to add support for keyword-values max-content, min-content, fit-content, and fill-available to the properties that use them, namely min-width, min-height, max-width, and max-height.
It's still untested because I still haven't figured out how to do that. I guess I should write or find some web page that uses these properties.
Refs #13821.
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Implement an ExtremumLength type which contains all the enumerated
keyword values for min-width, min-height, max-width, and
max-height. Then, implement a MinLength which can be used for min-width
and min-height. So far this just maps to Gecko values.
Refs #13821.
Fix parsing methods of column-{gap,width}
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They weren't accepting {normal, auto} keywords. Fixed parsing methods of these properties.
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Signed-off-by: Sam <sam@sam.uk.net>
Use existing parse functions for any length parsing of letter-spacing and word-spacing.
Signed-off-by: Sam <sam@sam.uk.net>
Add letter-spacing test
Signed-off-by: Sam <sam@sam.uk.net>
Add tests for letter-spacing and word-spacing negative parsing.
Signed-off-by: Sam <sam@sam.uk.net>
Remove extra line.
Signed-off-by: Sam <sam@sam.uk.net>
Remove _ of _context.
Signed-off-by: Sam <sam@sam.uk.net>
Refactor tests to use new NoCalcLength
Signed-off-by: Sam <sam@sam.uk.net>
Remove unused import.
Signed-off-by: Sam <sam@sam.uk.net>
Remove un-needed use.
This introduces a basic framework for servo's style system to be able
to query the style of presentation attributes which it can then insert
into the cascade. It uses that framework to implement the size and
color attributes on <font>.
There are a number of improvements that can be done on top of this:
- Implement all other properties
- Abstractify the ruledata parameter of the mappers using templates or virtual dispatch so that it can be a Servo decl block instead
- Implement aforementiond abstraction over Servo decl blocks (this obsoletes the code in the first item above, so it might just be better to skip that and directly do this)
- Replace uses of nsHTMLStyleSheet with an abstract base class containing common elements between Servo and Gecko
I'd prefer for these to be done in separate steps.
Parsing "0" as Number for line-height and border-image-outset
Fixes#15171 by correctly parsing `0` as `0` (rather than as `0px`, as was the case earlier) for the `line-height` and `border-image-outset` CSS properties. Wrote unit tests for both; `./mach test-unit -p style` passes all tests.
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Use Box<CalcLengthOrPercentage> in specified values to avoid bloating inline sizes
For #15061
CalcLOP is a large struct, and gets used quite often. While #15063 reduces its size a bit,
it will still be much larger than any of the other variants in the `specified::Length*` types,
so it will still bloat sizes, especially for specified values that contain many lengths.
This change boxes it in the length types, so that it just takes one word.
r? @heycam
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