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script: Don't paint layouts induced by hit test queries.

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Reduces CPU usage when mousing over simple pages.

Part of #9999.
This commit is contained in:
Patrick Walton 2016-03-15 16:18:33 -07:00
parent 7cb9429a0f
commit ed6ee29951
1 changed files with 6 additions and 2 deletions
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8
components/script/dom/window.rs
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@ -1021,7 +1021,11 @@ impl Window {
debug!("script: layout joined");
self.pending_reflow_count.set(0);
// Pending reflows require display, so only reset the pending reflow count if this reflow
// was to be displayed.
if goal == ReflowGoal::ForDisplay {
self.pending_reflow_count.set(0);
}
if let Some(marker) = marker {
self.emit_timeline_marker(marker.end());
@ -1104,7 +1108,7 @@ impl Window {
pub fn hit_test_query(&self, hit_test_request: Point2D<f32>, update_cursor: bool)
-> Option<UntrustedNodeAddress> {
self.reflow(ReflowGoal::ForDisplay,
self.reflow(ReflowGoal::ForScriptQuery,
ReflowQueryType::HitTestQuery(hit_test_request, update_cursor),
ReflowReason::Query);
self.layout_rpc.hit_test().node_address