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Add support for <iframe> elements for Layout 2020

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This change adds support for the <iframe> element to Layout 2020. In
addition, certain aspects of the implementation are made the same
between both layout systems.
This commit is contained in:
Martin Robinson 2023-03-15 15:42:12 +01:00
parent e09acf88f4
commit 9e0b41ebc4
38 changed files with 281 additions and 164 deletions
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33
components/layout_2020/display_list/mod.rs
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@ -10,8 +10,10 @@ use crate::replaced::IntrinsicSizes;
use crate::style_ext::ComputedValuesExt;
use embedder_traits::Cursor;
use euclid::{Point2D, SideOffsets2D, Size2D};
use fnv::FnvHashMap;
use gfx::text::glyph::GlyphStore;
use mitochondria::OnceCell;
use msg::constellation_msg::BrowsingContextId;
use net_traits::image_cache::UsePlaceholder;
use script_traits::compositor::CompositorDisplayListInfo;
use std::sync::Arc;
@ -22,6 +24,7 @@ use style::properties::ComputedValues;
use style::values::computed::{BorderStyle, Length, LengthPercentage};
use style::values::specified::text::TextDecorationLine;
use style::values::specified::ui::CursorKind;
use style_traits::CSSPixel;
use webrender_api::{self as wr, units};
mod background;
@ -48,6 +51,7 @@ pub struct DisplayListBuilder<'a> {
pub context: &'a LayoutContext<'a>,
pub wr: wr::DisplayListBuilder,
pub compositor_info: CompositorDisplayListInfo,
pub iframe_sizes: FnvHashMap<BrowsingContextId, Size2D<f32, CSSPixel>>,
/// Contentful paint, for the purpose of
/// https://w3c.github.io/paint-timing/#first-contentful-paint
@ -69,6 +73,7 @@ impl<'a> DisplayListBuilder<'a> {
context,
wr: wr::DisplayListBuilder::new(pipeline_id, fragment_tree.scrollable_overflow()),
compositor_info: CompositorDisplayListInfo::default(),
iframe_sizes: FnvHashMap::default(),
}
}
@ -142,6 +147,34 @@ impl Fragment {
Visibility::Hidden => (),
Visibility::Collapse => (),
},
Fragment::IFrame(iframe) => match iframe.style.get_inherited_box().visibility {
Visibility::Visible => {
builder.is_contentful = true;
let rect = iframe
.rect
.to_physical(iframe.style.writing_mode, containing_block)
.translate(containing_block.origin.to_vector());
builder.iframe_sizes.insert(
iframe.browsing_context_id,
Size2D::new(rect.size.width.px(), rect.size.height.px()),
);
let common = builder.common_properties(rect.to_webrender(), &iframe.style);
builder.wr.push_iframe(
rect.to_webrender(),
common.clip_rect,
&wr::SpaceAndClipInfo {
spatial_id: common.spatial_id,
clip_id: common.clip_id,
},
iframe.pipeline_id.to_webrender(),
true,
);
},
Visibility::Hidden => (),
Visibility::Collapse => (),
},
Fragment::Text(t) => match t.parent_style.get_inherited_box().visibility {
Visibility::Visible => {
self.build_display_list_for_text_fragment(t, builder, containing_block)