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Fixed #3386.

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This commit is contained in:
Clark Gaebel 2014-09-17 15:36:50 -07:00
parent 1b251db732
commit 670ca9894e
7 changed files with 59 additions and 8 deletions
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8
components/layout/layout_task.rs
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@ -88,6 +88,10 @@ pub struct LayoutTaskData {
/// The dirty rect. Used during display list construction.
pub dirty: Rect<Au>,
/// Starts at zero, and increased by one every time a layout completes.
/// This can be used to easily check for invalid stale data.
pub generation: uint,
}
/// Information needed by the layout task.
@ -413,6 +417,7 @@ impl LayoutTask {
stylist: box Stylist::new(),
parallel_traversal: parallel_traversal,
dirty: Rect::zero(),
generation: 0,
})),
}
}
@ -443,6 +448,7 @@ impl LayoutTask {
reflow_root: OpaqueNodeMethods::from_layout_node(reflow_root),
opts: self.opts.clone(),
dirty: Rect::zero(),
generation: rw_data.generation,
}
}
@ -925,6 +931,8 @@ impl LayoutTask {
layout_debug::end_trace();
}
rw_data.generation += 1;
// Tell script that we're done.
//
// FIXME(pcwalton): This should probably be *one* channel, but we can't fix this without