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Implement Document#elementsFromPoint

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Rizky Luthfianto 2016-04-03 21:44:01 +07:00
parent 88d29e537c
commit 07584b9f29
7 changed files with 88 additions and 0 deletions
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19
components/layout/query.rs
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@ -20,6 +20,7 @@ use script::layout_interface::{ContentBoxResponse, ContentBoxesResponse, NodeGeo
use script::layout_interface::{HitTestResponse, LayoutRPC, OffsetParentResponse};
use script::layout_interface::{ResolvedStyleResponse, ScriptLayoutChan, MarginStyleResponse};
use script_traits::LayoutMsg as ConstellationMsg;
use script_traits::UntrustedNodeAddress;
use sequential;
use std::cmp::{min, max};
use std::ops::Deref;
@ -85,6 +86,24 @@ impl LayoutRPC for LayoutRPCImpl {
}
}
fn nodes_from_point(&self, point: Point2D<f32>) -> Vec<UntrustedNodeAddress> {
let point = Point2D::new(Au::from_f32_px(point.x), Au::from_f32_px(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(point),
};
result
};
nodes_from_point_list.iter()
.map(|metadata| metadata.node.to_untrusted_node_address())
.collect()
}
fn node_geometry(&self) -> NodeGeometryResponse {
let &LayoutRPCImpl(ref rw_data) = self;
let rw_data = rw_data.lock().unwrap();