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Make a bunch of layout queries morally safer

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This commit is contained in:
Anthony Ramine 2019-01-09 14:11:13 +01:00
parent ddef6211b3
commit 3ccda7f90c
7 changed files with 60 additions and 68 deletions
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30
components/layout/query.rs
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@ -364,24 +364,24 @@ impl FragmentBorderBoxIterator for MarginRetrievingFragmentBorderBoxIterator {
}
}
pub fn process_content_box_request<N: LayoutNode>(
requested_node: N,
pub fn process_content_box_request(
requested_node: OpaqueNode,
layout_root: &mut dyn Flow,
) -> Option<Rect<Au>> {
// FIXME(pcwalton): This has not been updated to handle the stacking context relative
// stuff. So the position is wrong in most cases.
let mut iterator = UnioningFragmentBorderBoxIterator::new(requested_node.opaque());
let mut iterator = UnioningFragmentBorderBoxIterator::new(requested_node);
sequential::iterate_through_flow_tree_fragment_border_boxes(layout_root, &mut iterator);
iterator.rect
}
pub fn process_content_boxes_request<N: LayoutNode>(
requested_node: N,
pub fn process_content_boxes_request(
requested_node: OpaqueNode,
layout_root: &mut dyn Flow,
) -> Vec<Rect<Au>> {
// FIXME(pcwalton): This has not been updated to handle the stacking context relative
// stuff. So the position is wrong in most cases.
let mut iterator = CollectingFragmentBorderBoxIterator::new(requested_node.opaque());
let mut iterator = CollectingFragmentBorderBoxIterator::new(requested_node);
sequential::iterate_through_flow_tree_fragment_border_boxes(layout_root, &mut iterator);
iterator.rects
}
@ -669,11 +669,11 @@ impl FragmentBorderBoxIterator for ParentOffsetBorderBoxIterator {
}
}
pub fn process_node_geometry_request<N: LayoutNode>(
requested_node: N,
pub fn process_node_geometry_request(
requested_node: OpaqueNode,
layout_root: &mut dyn Flow,
) -> Rect<i32> {
let mut iterator = FragmentLocatingFragmentIterator::new(requested_node.opaque());
let mut iterator = FragmentLocatingFragmentIterator::new(requested_node);
sequential::iterate_through_flow_tree_fragment_border_boxes(layout_root, &mut iterator);
iterator.client_rect
}
@ -687,11 +687,11 @@ pub fn process_node_scroll_id_request<N: LayoutNode>(
}
/// https://drafts.csswg.org/cssom-view/#scrolling-area
pub fn process_node_scroll_area_request<N: LayoutNode>(
requested_node: N,
pub fn process_node_scroll_area_request(
requested_node: OpaqueNode,
layout_root: &mut dyn Flow,
) -> Rect<i32> {
let mut iterator = UnioningFragmentScrollAreaIterator::new(requested_node.opaque());
let mut iterator = UnioningFragmentScrollAreaIterator::new(requested_node);
sequential::iterate_through_flow_tree_fragment_border_boxes(layout_root, &mut iterator);
match iterator.overflow_direction {
OverflowDirection::RightAndDown => {
@ -932,11 +932,11 @@ where
}
}
pub fn process_offset_parent_query<N: LayoutNode>(
requested_node: N,
pub fn process_offset_parent_query(
requested_node: OpaqueNode,
layout_root: &mut dyn Flow,
) -> OffsetParentResponse {
let mut iterator = ParentOffsetBorderBoxIterator::new(requested_node.opaque());
let mut iterator = ParentOffsetBorderBoxIterator::new(requested_node);
sequential::iterate_through_flow_tree_fragment_border_boxes(layout_root, &mut iterator);
let node_offset_box = iterator.node_offset_box;