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Implement getComputedStyle

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This commit is contained in:
David Zbarsky 2015-07-27 23:05:18 -04:00
parent 416931f4be
commit e484d6b5e3
24 changed files with 886 additions and 152 deletions
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7
components/script/layout_interface.rs
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@ -21,8 +21,10 @@ use net_traits::PendingAsyncLoad;
use profile_traits::mem::ReportsChan;
use script_traits::{ConstellationControlMsg, LayoutControlMsg, ScriptControlChan};
use script_traits::{OpaqueScriptLayoutChannel, StylesheetLoadResponder, UntrustedNodeAddress};
use selectors::parser::PseudoElement;
use std::any::Any;
use std::sync::mpsc::{channel, Receiver, Sender};
use string_cache::Atom;
use style::animation::PropertyAnimation;
use style::media_queries::MediaQueryList;
use style::stylesheets::Stylesheet;
@ -100,8 +102,11 @@ pub trait LayoutRPC {
/// Requests the node containing the point of interest
fn hit_test(&self, node: TrustedNodeAddress, point: Point2D<f32>) -> Result<HitTestResponse, ()>;
fn mouse_over(&self, node: TrustedNodeAddress, point: Point2D<f32>) -> Result<MouseOverResponse, ()>;
/// Query layout for the resolved value of a given CSS property
fn resolved_style(&self) -> ResolvedStyleResponse;
}
pub struct ContentBoxResponse(pub Rect<Au>);
pub struct ContentBoxesResponse(pub Vec<Rect<Au>>);
pub struct NodeGeometryResponse {
@ -109,6 +114,7 @@ pub struct NodeGeometryResponse {
}
pub struct HitTestResponse(pub UntrustedNodeAddress);
pub struct MouseOverResponse(pub Vec<UntrustedNodeAddress>);
pub struct ResolvedStyleResponse(pub Option<String>);
/// Why we're doing reflow.
#[derive(PartialEq, Copy, Clone, Debug)]
@ -126,6 +132,7 @@ pub enum ReflowQueryType {
ContentBoxQuery(TrustedNodeAddress),
ContentBoxesQuery(TrustedNodeAddress),
NodeGeometryQuery(TrustedNodeAddress),
ResolvedStyleQuery(TrustedNodeAddress, Option<PseudoElement>, Atom),
}
/// Information needed for a reflow.