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layout: fix Servo build.

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This commit is contained in:
Emilio Cobos Álvarez 2019-05-06 10:17:08 +02:00
parent 561018da7d
commit 0000e4cec2
7 changed files with 112 additions and 72 deletions
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107
components/layout/fragment.rs
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@ -61,8 +61,8 @@ use style::selector_parser::RestyleDamage;
use style::servo::restyle_damage::ServoRestyleDamage;
use style::str::char_is_whitespace;
use style::values::computed::counters::ContentItem;
use style::values::computed::{LengthPercentage, LengthPercentageOrAuto, Size};
use style::values::generics::box_::{Perspective, VerticalAlign};
use style::values::computed::{LengthPercentage, LengthPercentageOrAuto, Size, VerticalAlign};
use style::values::generics::box_::{Perspective, VerticalAlignKeyword};
use style::values::generics::transform;
use style::Zero;
use webrender_api::{self, LayoutTransform};
@ -2397,47 +2397,49 @@ impl Fragment {
// FIXME(#5624, pcwalton): This passes our current reftests but isn't the right thing
// to do.
match style.get_box().vertical_align {
VerticalAlign::Baseline => {},
VerticalAlign::Middle => {
let font_metrics =
with_thread_local_font_context(layout_context, |font_context| {
text::font_metrics_for_style(font_context, self.style.clone_font())
});
offset += (content_inline_metrics.ascent -
content_inline_metrics.space_below_baseline -
font_metrics.x_height)
.scale_by(0.5)
},
VerticalAlign::Sub => {
offset += minimum_line_metrics
.space_needed()
.scale_by(FONT_SUBSCRIPT_OFFSET_RATIO)
},
VerticalAlign::Super => {
offset -= minimum_line_metrics
.space_needed()
.scale_by(FONT_SUPERSCRIPT_OFFSET_RATIO)
},
VerticalAlign::TextTop => {
offset = self.content_inline_metrics(layout_context).ascent -
minimum_line_metrics.space_above_baseline
},
VerticalAlign::TextBottom => {
offset = minimum_line_metrics.space_below_baseline -
self.content_inline_metrics(layout_context)
.space_below_baseline
},
VerticalAlign::Top => {
if let Some(actual_line_metrics) = actual_line_metrics {
offset =
content_inline_metrics.ascent - actual_line_metrics.space_above_baseline
}
},
VerticalAlign::Bottom => {
if let Some(actual_line_metrics) = actual_line_metrics {
offset = actual_line_metrics.space_below_baseline -
content_inline_metrics.space_below_baseline
}
VerticalAlign::Keyword(kw) => match kw {
VerticalAlignKeyword::Baseline => {},
VerticalAlignKeyword::Middle => {
let font_metrics =
with_thread_local_font_context(layout_context, |font_context| {
text::font_metrics_for_style(font_context, self.style.clone_font())
});
offset += (content_inline_metrics.ascent -
content_inline_metrics.space_below_baseline -
font_metrics.x_height)
.scale_by(0.5)
},
VerticalAlignKeyword::Sub => {
offset += minimum_line_metrics
.space_needed()
.scale_by(FONT_SUBSCRIPT_OFFSET_RATIO)
},
VerticalAlignKeyword::Super => {
offset -= minimum_line_metrics
.space_needed()
.scale_by(FONT_SUPERSCRIPT_OFFSET_RATIO)
},
VerticalAlignKeyword::TextTop => {
offset = self.content_inline_metrics(layout_context).ascent -
minimum_line_metrics.space_above_baseline
},
VerticalAlignKeyword::TextBottom => {
offset = minimum_line_metrics.space_below_baseline -
self.content_inline_metrics(layout_context)
.space_below_baseline
},
VerticalAlignKeyword::Top => {
if let Some(actual_line_metrics) = actual_line_metrics {
offset = content_inline_metrics.ascent -
actual_line_metrics.space_above_baseline
}
},
VerticalAlignKeyword::Bottom => {
if let Some(actual_line_metrics) = actual_line_metrics {
offset = actual_line_metrics.space_below_baseline -
content_inline_metrics.space_below_baseline
}
},
},
VerticalAlign::Length(ref lp) => {
offset -= lp.to_used_value(minimum_line_metrics.space_needed());
@ -3087,15 +3089,22 @@ impl Fragment {
/// Returns true if any of the inline styles associated with this fragment have
/// `vertical-align` set to `top` or `bottom`.
pub fn is_vertically_aligned_to_top_or_bottom(&self) -> bool {
match self.style.get_box().vertical_align {
VerticalAlign::Top | VerticalAlign::Bottom => return true,
_ => {},
fn is_top_or_bottom(v: &VerticalAlign) -> bool {
match *v {
VerticalAlign::Keyword(VerticalAlignKeyword::Top) |
VerticalAlign::Keyword(VerticalAlignKeyword::Bottom) => true,
_ => false,
}
}
if is_top_or_bottom(&self.style.get_box().vertical_align) {
return true;
}
if let Some(ref inline_context) = self.inline_context {
for node in &inline_context.nodes {
match node.style.get_box().vertical_align {
VerticalAlign::Top | VerticalAlign::Bottom => return true,
_ => {},
if is_top_or_bottom(&node.style.get_box().vertical_align) {
return true;
}
}
}