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fix logic in overflow_direction, also add a FIXME

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This commit is contained in:
tigercosmos 2018-05-26 10:31:26 -07:00
parent f6762d54e2
commit 423d417dd7
1 changed files with 3 additions and 1 deletions
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4
components/layout/query.rs
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@ -393,6 +393,7 @@ impl UnioningFragmentScrollAreaIterator {
origin_rect: Rect::zero(),
level: None,
is_child: false,
// FIXME(#20867)
overflow_direction: OverflowDirection::RightAndDown
}
}
@ -634,6 +635,7 @@ pub fn process_node_scroll_id_request<N: LayoutNode>(
layout_node.generate_scroll_id(id)
}
/// https://drafts.csswg.org/cssom-view/#scrolling-area
pub fn process_node_scroll_area_request< N: LayoutNode>(requested_node: N, layout_root: &mut Flow)
-> Rect<i32> {
let mut iterator = UnioningFragmentScrollAreaIterator::new(requested_node.opaque());
@ -646,7 +648,7 @@ pub fn process_node_scroll_area_request< N: LayoutNode>(requested_node: N, layou
},
OverflowDirection::LeftAndDown => {
let bottom = max(iterator.union_rect.size.height, iterator.origin_rect.size.height);
let left = max(iterator.union_rect.origin.x, iterator.origin_rect.origin.x);
let left = min(iterator.union_rect.origin.x, iterator.origin_rect.origin.x);
Rect::new(Point2D::new(left, iterator.origin_rect.origin.y),
Size2D::new(iterator.origin_rect.size.width, bottom))
},