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Auto merge of #15604 - zploskey:reset_font_shorthand_serialization, r=SimonSapin

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serialize font: to empty on non-default subprops

Fixes font shorthand serialization so that it serializes to "" when non-default subproperties are defined. These subproperties are those defined in #15033.

Adds tests:
- font_should_serialize_to_empty_if_there_are_nondefault_subproperties
- font_should_serialize_all_available_properties

The second test was previously commented out and underwent some cleanup to make it run.

---
<!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `__` with appropriate data: -->
- [x] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [X] These changes fix #15036

<!-- Either: -->
- [X] There are tests for these changes

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---
This change is [<img src="https://reviewable.io/review_button.svg" height="34" align="absmiddle" alt="Reviewable"/>](https://reviewable.io/reviews/servo/servo/15604)
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This commit is contained in:
bors-servo 2017-03-19 08:26:43 -07:00 • committed by GitHub
commit fbd561bc2f
2 changed files with 73 additions and 52 deletions
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48
components/style/properties/shorthand/font.mako.rs
View file

@ -6,18 +6,18 @@
<%helpers:shorthand name="font" sub_properties="font-style font-variant font-weight font-stretch
font-size line-height font-family
${'font-size-adjust' if product == 'gecko' else ''}
${'font-kerning' if product == 'gecko' else ''}
${'font-variant-caps' if product == 'gecko' else ''}
${'font-variant-position' if product == 'gecko' else ''}
${'font-language-override' if product == 'none' else ''}"
${'font-size-adjust' if product == 'gecko' or data.testing else ''}
${'font-kerning' if product == 'gecko' or data.testing else ''}
${'font-variant-caps' if product == 'gecko' or data.testing else ''}
${'font-variant-position' if product == 'gecko' or data.testing else ''}
${'font-language-override' if data.testing else ''}"
spec="https://drafts.csswg.org/css-fonts-3/#propdef-font">
use properties::longhands::{font_style, font_variant, font_weight, font_stretch};
use properties::longhands::{font_size, line_height};
% if product == "gecko":
% if product == "gecko" or data.testing:
use properties::longhands::{font_size_adjust, font_kerning, font_variant_caps, font_variant_position};
% endif
% if product == "none":
% if data.testing:
use properties::longhands::font_language_override;
% endif
use properties::longhands::font_family::SpecifiedValue as FontFamily;
@ -83,12 +83,12 @@
% endfor
line_height: unwrap_or_initial!(line_height),
font_family: family,
% if product == "gecko":
% if product == "gecko" or data.testing:
% for name in "size_adjust kerning variant_caps variant_position".split():
font_${name}: font_${name}::get_initial_specified_value(),
% endfor
% endif
% if product == "none":
% if data.testing:
font_language_override: font_language_override::get_initial_specified_value(),
% endif
})
@ -97,16 +97,28 @@
// This may be a bit off, unsure, possibly needs changes
impl<'a> ToCss for LonghandsToSerialize<'a> {
fn to_css<W>(&self, dest: &mut W) -> fmt::Result where W: fmt::Write {
self.font_style.to_css(dest)?;
dest.write_str(" ")?;
self.font_variant.to_css(dest)?;
dest.write_str(" ")?;
self.font_weight.to_css(dest)?;
dest.write_str(" ")?;
self.font_stretch.to_css(dest)?;
% if product == "gecko" or data.testing:
% for name in "size_adjust kerning variant_caps variant_position".split():
if self.font_${name} != &font_${name}::get_initial_specified_value() {
return Ok(());
}
% endfor
% endif
% if data.testing:
if self.font_language_override != &font_language_override::get_initial_specified_value() {
return Ok(());
}
% endif
% for name in "style variant weight stretch".split():
self.font_${name}.to_css(dest)?;
dest.write_str(" ")?;
% endfor
self.font_size.to_css(dest)?;
match *self.line_height {
line_height::SpecifiedValue::Normal => {},
_ => {
@ -116,7 +128,9 @@
}
dest.write_str(" ")?;
self.font_family.to_css(dest)
self.font_family.to_css(dest)?;
Ok(())
}
}
</%helpers:shorthand>