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Make the needs_reflow method actually work correctly.

The document node is always dirty because layout never clears the bit;
instead, check the dirty bit of the root element.
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eefriedman committed Nov 21, 2015
1 parent ea690a2 commit 31c013858ff25e14f6984d4caa4d696d6aea33f8
Showing with 15 additions and 4 deletions.
  1. +10 −3 components/script/dom/document.rs
  2. +5 −1 components/script/dom/window.rs
@@ -329,9 +329,16 @@ impl Document {
}

pub fn needs_reflow(&self) -> bool {
self.GetDocumentElement().is_some() &&
(self.upcast::<Node>().get_has_dirty_descendants() ||
!self.modified_elements.borrow().is_empty())
// FIXME: This should check the dirty bit on the document,
// not the document element. Needs some layout changes to make
// that workable.
match self.GetDocumentElement() {
Some(root) => {
root.upcast::<Node>().get_has_dirty_descendants() ||
!self.modified_elements.borrow().is_empty()
}
None => false,
}
}

/// Returns the first `base` element in the DOM that has an `href` attribute.
@@ -966,7 +966,11 @@ impl Window {
return
}

self.force_reflow(goal, query_type, reason)
self.force_reflow(goal, query_type, reason);

// If window_size is `None`, we don't reflow, so the document stays dirty.
// Otherwise, we shouldn't need a reflow immediately after a reflow.
assert!(!self.Document().needs_reflow() || self.window_size.get().is_none());
}

pub fn layout(&self) -> &LayoutRPC {

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