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stylo: Add font keyword info fields on nsStyleFont

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This commit is contained in:
Manish Goregaokar 2017-09-12 13:53:39 -07:00 • committed by Manish Goregaokar
parent c2fcc9ce1a
commit c73dc5704b
3 changed files with 124 additions and 28 deletions
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62
components/style/properties/gecko.mako.rs
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@ -2167,8 +2167,27 @@ fn static_assert() {
}
pub fn set_font_size(&mut self, v: longhands::font_size::computed_value::T) {
use self::longhands::font_size::KeywordSize;
self.gecko.mSize = v.size().0;
self.gecko.mScriptUnconstrainedSize = v.size().0;
if let Some(info) = v.info {
self.gecko.mFontSizeKeyword = match info.kw {
KeywordSize::XXSmall => structs::NS_STYLE_FONT_SIZE_XXSMALL,
KeywordSize::XSmall => structs::NS_STYLE_FONT_SIZE_XSMALL,
KeywordSize::Small => structs::NS_STYLE_FONT_SIZE_SMALL,
KeywordSize::Medium => structs::NS_STYLE_FONT_SIZE_MEDIUM,
KeywordSize::Large => structs::NS_STYLE_FONT_SIZE_LARGE,
KeywordSize::XLarge => structs::NS_STYLE_FONT_SIZE_XLARGE,
KeywordSize::XXLarge => structs::NS_STYLE_FONT_SIZE_XXLARGE,
KeywordSize::XXXLarge => structs::NS_STYLE_FONT_SIZE_XXXLARGE,
} as u8;
self.gecko.mFontSizeFactor = info.factor;
self.gecko.mFontSizeOffset = info.offset.0.to_i32_au();
} else {
self.gecko.mFontSizeKeyword = structs::NS_STYLE_FONT_SIZE_NO_KEYWORD as u8;
self.gecko.mFontSizeFactor = 1.;
self.gecko.mFontSizeOffset = 0;
}
}
/// Set font size, taking into account scriptminsize and scriptlevel
@ -2327,12 +2346,24 @@ fn static_assert() {
// In the case that MathML has given us an adjusted size, apply it.
// Keep track of the unconstrained adjusted size.
self.gecko.mSize = adjusted_size.0;
// Technically the MathML constrained size may also be keyword-derived
// but we ignore this since it would be too complicated
// to correctly track and it's mostly unnecessary.
self.gecko.mFontSizeKeyword = structs::NS_STYLE_FONT_SIZE_NO_KEYWORD as u8;
self.gecko.mFontSizeFactor = 1.;
self.gecko.mFontSizeOffset = 0;
self.gecko.mScriptUnconstrainedSize = adjusted_unconstrained_size.0;
self.fixup_font_min_size(device);
false
} else if let Some(size) = kw_inherited_size {
// Parent element was a keyword-derived size.
self.gecko.mSize = size.0.to_i32_au();
// Copy keyword info over.
self.gecko.mFontSizeFactor = parent.gecko.mFontSizeFactor;
self.gecko.mFontSizeOffset = parent.gecko.mFontSizeOffset;
self.gecko.mFontSizeKeyword = parent.gecko.mFontSizeKeyword;
// MathML constraints didn't apply here, so we can ignore this.
self.gecko.mScriptUnconstrainedSize = size.0.to_i32_au();
self.fixup_font_min_size(device);
@ -2341,6 +2372,10 @@ fn static_assert() {
// MathML isn't affecting us, and our parent element does not
// have a keyword-derived size. Set things normally.
self.gecko.mSize = parent.gecko.mSize;
// copy keyword info over
self.gecko.mFontSizeKeyword = structs::NS_STYLE_FONT_SIZE_NO_KEYWORD as u8;
self.gecko.mFontSizeFactor = 1.;
self.gecko.mFontSizeOffset = 0;
self.gecko.mScriptUnconstrainedSize = parent.gecko.mScriptUnconstrainedSize;
self.fixup_font_min_size(device);
false
@ -2348,9 +2383,32 @@ fn static_assert() {
}
pub fn clone_font_size(&self) -> longhands::font_size::computed_value::T {
use self::longhands::font_size::KeywordSize;
let size = Au(self.gecko.mSize).into();
let kw = match self.gecko.mFontSizeKeyword as u32 {
structs::NS_STYLE_FONT_SIZE_XXSMALL => KeywordSize::XXSmall,
structs::NS_STYLE_FONT_SIZE_XSMALL => KeywordSize::XSmall,
structs::NS_STYLE_FONT_SIZE_SMALL => KeywordSize::Small,
structs::NS_STYLE_FONT_SIZE_MEDIUM => KeywordSize::Medium,
structs::NS_STYLE_FONT_SIZE_LARGE => KeywordSize::Large,
structs::NS_STYLE_FONT_SIZE_XLARGE => KeywordSize::XLarge,
structs::NS_STYLE_FONT_SIZE_XXLARGE => KeywordSize::XXLarge,
structs::NS_STYLE_FONT_SIZE_XXXLARGE => KeywordSize::XXXLarge,
structs::NS_STYLE_FONT_SIZE_NO_KEYWORD => {
return longhands::font_size::computed_value::T {
size: size,
info: None,
}
}
_ => unreachable!("mFontSizeKeyword should be an absolute keyword or NO_KEYWORD")
};
longhands::font_size::computed_value::T {
size: Au(self.gecko.mSize).into(),
info: None, // XXXManishearth this is a placeholder
size: size,
info: Some(longhands::font_size::computed_value::KeywordInfo {
kw: kw,
factor: self.gecko.mFontSizeFactor,
offset: Au(self.gecko.mFontSizeOffset).into()
})
}
}