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layout: Enable text-shadow (#31734)

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`text-shadow` is enabled for legacy layout, so this just extends support
to the modern layout system.
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Martin Robinson 2024-03-19 11:29:20 +01:00 • committed by GitHub
parent 8cf47e6009
commit 2ec995a56f
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22 changed files with 38 additions and 481 deletions
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24
components/layout_2020/display_list/mod.rs
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@ -370,6 +370,25 @@ impl Fragment {
let color = fragment.parent_style.clone_color();
let font_metrics = &fragment.font_metrics;
let dppx = builder.context.style_context.device_pixel_ratio().get();
let common = builder.common_properties(rect.to_webrender(), &fragment.parent_style);
// Shadows. According to CSS-BACKGROUNDS, text shadows render in *reverse* order (front to
// back).
let shadows = &fragment.parent_style.get_inherited_text().text_shadow;
for shadow in shadows.0.iter().rev() {
builder.wr().push_shadow(
&wr::SpaceAndClipInfo {
spatial_id: common.spatial_id,
clip_chain_id: common.clip_chain_id,
},
wr::Shadow {
offset: LayoutVector2D::new(shadow.horizontal.px(), shadow.vertical.px()),
color: rgba(shadow.color.resolve_to_absolute(&color)),
blur_radius: shadow.blur.px(),
},
true, /* should_inflate */
);
}
// Underline.
if fragment
@ -393,7 +412,6 @@ impl Fragment {
}
// Text.
let common = builder.common_properties(rect.to_webrender(), &fragment.parent_style);
builder.wr().push_text(
&common,
rect.to_webrender(),
@ -414,6 +432,10 @@ impl Fragment {
rect.size.height = Length::new(font_metrics.strikeout_size.to_nearest_pixel(dppx));
self.build_display_list_for_text_decoration(fragment, builder, &rect, &color);
}
if !shadows.0.is_empty() {
builder.wr().pop_all_shadows();
}
}
fn build_display_list_for_text_decoration(