layout: Make the stacking context take into account the children transform when calculating overflow areas.

This only works for simple translations and similar, but I want Patrick to
validate my approach.
This commit is contained in:
Emilio Cobos Álvarez 2016-08-13 02:36:17 -07:00
parent 49431be44a
commit fd3a99ead3
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5 changed files with 85 additions and 32 deletions

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@ -84,8 +84,10 @@ pub fn build_display_list_for_subtree(root: &mut FlowRef,
let flow_root = flow_ref::deref_mut(root);
let layout_context = LayoutContext::new(shared_layout_context);
flow_root.traverse_preorder(&ComputeAbsolutePositions { layout_context: &layout_context });
let mut children = vec![];
flow_root.collect_stacking_contexts(root_stacking_context.id,
&mut root_stacking_context.children);
&mut children);
root_stacking_context.add_children(children);
let mut build_display_list = BuildDisplayList {
state: DisplayListBuildState::new(&layout_context,
flow::base(&*flow_root).stacking_context_id),