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layout: Implement z-index.

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This commit is contained in:
Patrick Walton 2014-10-02 14:11:04 -07:00
parent eff0de0ce1
commit 01c90d8d6a
9 changed files with 81 additions and 18 deletions
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9
components/layout/block.rs
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@ -1239,11 +1239,10 @@ impl BlockFlow {
if !self.base.absolute_position_info.layers_needed_for_positioned_flows &&
!self.base.flags.needs_layer() {
// We didn't need a layer.
//
// TODO(#781, pcwalton): `z-index`.
self.base.display_list =
mem::replace(&mut self.base.display_list,
DisplayList::new()).flatten(PositionedDescendantStackingLevel(0));
let z_index = self.fragment.style().get_box().z_index.number_or_zero();
let level = PositionedDescendantStackingLevel(z_index);
self.base.display_list = mem::replace(&mut self.base.display_list,
DisplayList::new()).flatten(level);
return
}