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Do not propagate floats in or out of absolutely positioned flows.

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Fixes #10625
This commit is contained in:
Michael Howell 2016-04-15 14:15:44 -07:00
parent 7c615233d8
commit 03be4583e0
1 changed files with 10 additions and 4 deletions
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14
components/layout/sequential.rs
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@ -9,6 +9,7 @@ use context::{LayoutContext, SharedLayoutContext};
use display_list_builder::DisplayListBuildState;
use euclid::point::Point2D;
use floats::SpeculatedFloatPlacement;
use flow::IS_ABSOLUTELY_POSITIONED;
use flow::{PostorderFlowTraversal, PreorderFlowTraversal};
use flow::{self, Flow, ImmutableFlowUtils, InorderFlowTraversal, MutableFlowUtils};
use flow_ref::{self, FlowRef};
@ -144,10 +145,15 @@ pub fn guess_float_placement(flow: &mut Flow) {
let mut floats_in = SpeculatedFloatPlacement::compute_floats_in_for_first_child(flow);
for kid in flow::mut_base(flow).child_iter_mut() {
floats_in.compute_floats_in(kid);
flow::mut_base(kid).speculated_float_placement_in = floats_in;
guess_float_placement(kid);
floats_in = flow::base(kid).speculated_float_placement_out;
if flow::base(kid).flags.contains(IS_ABSOLUTELY_POSITIONED) {
// Do not propagate floats in or out, but do propogate between kids.
guess_float_placement(kid);
} else {
floats_in.compute_floats_in(kid);
flow::mut_base(kid).speculated_float_placement_in = floats_in;
guess_float_placement(kid);
floats_in = flow::base(kid).speculated_float_placement_out;
}
}
floats_in.compute_floats_out(flow);
flow::mut_base(flow).speculated_float_placement_out = floats_in