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Trigger reflow on document.elementsFromPoint

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This commit is contained in:
Fernando Jiménez Moreno 2017-02-28 16:13:00 +01:00
parent d0856fd4cd
commit 7426d902a3
10 changed files with 86 additions and 33 deletions
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2
components/layout/lib.rs
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@ -73,7 +73,7 @@ mod linked_list;
mod list_item;
mod model;
mod multicol;
mod opaque_node;
pub mod opaque_node;
pub mod parallel;
mod persistent_list;
pub mod query;

38
components/layout/query.rs
View file

@ -94,6 +94,9 @@ pub struct LayoutThreadData {
/// A list of images requests that need to be initiated.
pub pending_images: Vec<PendingImage>,
/// A queued response for the list of nodes at a given point.
pub nodes_from_point_response: Vec<UntrustedNodeAddress>,
}
pub struct LayoutRPCImpl(pub Arc<Mutex<LayoutThreadData>>);
@ -144,33 +147,10 @@ impl LayoutRPC for LayoutRPCImpl {
}
}
fn nodes_from_point(&self,
page_point: Point2D<f32>,
client_point: Point2D<f32>) -> Vec<UntrustedNodeAddress> {
let page_point = Point2D::new(Au::from_f32_px(page_point.x),
Au::from_f32_px(page_point.y));
let client_point = Point2D::new(Au::from_f32_px(client_point.x),
Au::from_f32_px(client_point.y));
let nodes_from_point_list = {
let &LayoutRPCImpl(ref rw_data) = self;
let rw_data = rw_data.lock().unwrap();
let result = match rw_data.display_list {
None => panic!("Tried to hit test without a DisplayList"),
Some(ref display_list) => {
display_list.hit_test(&page_point,
&client_point,
&rw_data.stacking_context_scroll_offsets)
}
};
result
};
nodes_from_point_list.iter()
.rev()
.map(|metadata| metadata.node.to_untrusted_node_address())
.collect()
fn nodes_from_point(&self) -> Vec<UntrustedNodeAddress> {
let &LayoutRPCImpl(ref rw_data) = self;
let rw_data = rw_data.lock().unwrap();
rw_data.nodes_from_point_response.clone()
}
fn node_geometry(&self) -> NodeGeometryResponse {
@ -193,8 +173,8 @@ impl LayoutRPC for LayoutRPCImpl {
fn node_scroll_root_id(&self) -> NodeScrollRootIdResponse {
NodeScrollRootIdResponse(self.0.lock()
.unwrap().scroll_root_id_response
.expect("scroll_root_id is not correctly fetched"))
.unwrap().scroll_root_id_response
.expect("scroll_root_id is not correctly fetched"))
}
/// Retrieves the resolved value for a CSS style property.