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auto merge of #4194 : cgaebel/servo/incremental-reflow-fix, r=pcwalton

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When inserting a node that was already dirtied, the dirtying logic
would short circuit: "This node is already dirty? Great! Then its
parents must be HAS_DIRTY_DESCENDANTS, too! Let's skip that step."

This isn't appropriate when nodes move around the tree. In that case,
the node may be marked HAS_CHANGED, but ancestors may not yet have
the HAS_DIRTY_DESCENDANTS flag set.

This patch adds a `content_and_heritage_changed` hook in the document,
to deal with these cases appropriately.
This commit is contained in:
bors-servo 2014-12-08 12:28:14 -07:00
commit 5c506f7a98
3 changed files with 31 additions and 5 deletions
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3
components/layout/wrapper.rs
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@ -225,7 +225,8 @@ impl<'ln> LayoutNode<'ln> {
}
fn debug_str(self) -> String {
format!("{}: dirty={}", self.type_id(), self.is_dirty())
format!("{}: changed={} dirty={} dirty_descendants={}",
self.type_id(), self.has_changed(), self.is_dirty(), self.has_dirty_descendants())
}
pub fn flow_debug_id(self) -> uint {