servo/components/script/dom/dompointreadonly.rs
Martin Robinson 6031a12fd1
Move ScriptToConstellationMsg to constellation_traits (#36364)
This is the last big change necessary to create the
`constellation_traits` crate. This moves the data structure for messages
that originate from the `ScriptThread` and are sent to the
`Contellation` to `constellation_traits`, effectively splitting
`script_traits` in half. Before, `script_traits` was responsible for
exposing the API of both the `ScriptThread` and the `Constellation` to
the rest of Servo.

- Data structures that are used by `ScriptToConstellationMsg` are moved
  to `constellation_traits`. The dependency graph looks a bit like this:
  `script_layout_interface` depends on `script_traits` depends on
  `constellation_traits` depends on `embedder_traits`.
- Data structures that are used in the embedding layer
  (`UntrustedNodeAddress`, `CompositorHitTestResult`, `TouchEventResult`
  and `AnimationState`) are moved to embedder_traits, to avoid a
  dependency cycle between `webrender_traits` and
  `constellation_traits`.
- Types dealing with MessagePorts and serialization are moved to
  `constellation_traits::message_port`.

Testing: This is covered by existing tests as it just moves types
around.
Signed-off-by: Martin Robinson <mrobinson@igalia.com>

Signed-off-by: Martin Robinson <mrobinson@igalia.com>
2025-04-05 22:13:29 +00:00

209 lines
5.6 KiB
Rust

/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
use std::cell::Cell;
use std::collections::HashMap;
use std::num::NonZeroU32;
use base::id::{DomPointId, DomPointIndex, PipelineNamespaceId};
use constellation_traits::DomPoint;
use dom_struct::dom_struct;
use js::rust::HandleObject;
use crate::dom::bindings::codegen::Bindings::DOMPointBinding::DOMPointInit;
use crate::dom::bindings::codegen::Bindings::DOMPointReadOnlyBinding::DOMPointReadOnlyMethods;
use crate::dom::bindings::error::Fallible;
use crate::dom::bindings::reflector::{Reflector, reflect_dom_object_with_proto};
use crate::dom::bindings::root::DomRoot;
use crate::dom::bindings::serializable::{IntoStorageKey, Serializable, StorageKey};
use crate::dom::bindings::structuredclone::{StructuredData, StructuredDataReader};
use crate::dom::globalscope::GlobalScope;
use crate::script_runtime::CanGc;
// http://dev.w3.org/fxtf/geometry/Overview.html#dompointreadonly
#[dom_struct]
pub(crate) struct DOMPointReadOnly {
reflector_: Reflector,
x: Cell<f64>,
y: Cell<f64>,
z: Cell<f64>,
w: Cell<f64>,
}
#[allow(non_snake_case)]
impl DOMPointReadOnly {
pub(crate) fn new_inherited(x: f64, y: f64, z: f64, w: f64) -> DOMPointReadOnly {
DOMPointReadOnly {
x: Cell::new(x),
y: Cell::new(y),
z: Cell::new(z),
w: Cell::new(w),
reflector_: Reflector::new(),
}
}
pub(crate) fn new(
global: &GlobalScope,
x: f64,
y: f64,
z: f64,
w: f64,
can_gc: CanGc,
) -> DomRoot<DOMPointReadOnly> {
Self::new_with_proto(global, None, x, y, z, w, can_gc)
}
fn new_with_proto(
global: &GlobalScope,
proto: Option<HandleObject>,
x: f64,
y: f64,
z: f64,
w: f64,
can_gc: CanGc,
) -> DomRoot<DOMPointReadOnly> {
reflect_dom_object_with_proto(
Box::new(DOMPointReadOnly::new_inherited(x, y, z, w)),
global,
proto,
can_gc,
)
}
}
#[allow(non_snake_case)]
impl DOMPointReadOnlyMethods<crate::DomTypeHolder> for DOMPointReadOnly {
// https://drafts.fxtf.org/geometry/#dom-dompoint-dompoint
fn Constructor(
global: &GlobalScope,
proto: Option<HandleObject>,
can_gc: CanGc,
x: f64,
y: f64,
z: f64,
w: f64,
) -> Fallible<DomRoot<DOMPointReadOnly>> {
Ok(DOMPointReadOnly::new_with_proto(
global, proto, x, y, z, w, can_gc,
))
}
// https://drafts.fxtf.org/geometry/#dom-dompointreadonly-frompoint
fn FromPoint(global: &GlobalScope, init: &DOMPointInit, can_gc: CanGc) -> DomRoot<Self> {
Self::new(global, init.x, init.y, init.z, init.w, can_gc)
}
// https://dev.w3.org/fxtf/geometry/Overview.html#dom-dompointreadonly-x
fn X(&self) -> f64 {
self.x.get()
}
// https://dev.w3.org/fxtf/geometry/Overview.html#dom-dompointreadonly-y
fn Y(&self) -> f64 {
self.y.get()
}
// https://dev.w3.org/fxtf/geometry/Overview.html#dom-dompointreadonly-z
fn Z(&self) -> f64 {
self.z.get()
}
// https://dev.w3.org/fxtf/geometry/Overview.html#dom-dompointreadonly-w
fn W(&self) -> f64 {
self.w.get()
}
}
#[allow(non_snake_case)]
pub(crate) trait DOMPointWriteMethods {
fn SetX(&self, value: f64);
fn SetY(&self, value: f64);
fn SetZ(&self, value: f64);
fn SetW(&self, value: f64);
}
impl DOMPointWriteMethods for DOMPointReadOnly {
fn SetX(&self, value: f64) {
self.x.set(value);
}
fn SetY(&self, value: f64) {
self.y.set(value);
}
fn SetZ(&self, value: f64) {
self.z.set(value);
}
fn SetW(&self, value: f64) {
self.w.set(value);
}
}
impl Serializable for DOMPointReadOnly {
type Id = DomPointId;
type Data = DomPoint;
fn serialize(&self) -> Result<(Self::Id, Self::Data), ()> {
let serialized = DomPoint {
x: self.x.get(),
y: self.y.get(),
z: self.z.get(),
w: self.w.get(),
};
Ok((DomPointId::new(), serialized))
}
fn deserialize(
owner: &GlobalScope,
serialized: Self::Data,
can_gc: CanGc,
) -> Result<DomRoot<Self>, ()>
where
Self: Sized,
{
Ok(Self::new(
owner,
serialized.x,
serialized.y,
serialized.z,
serialized.w,
can_gc,
))
}
fn serialized_storage(data: StructuredData<'_>) -> &mut Option<HashMap<Self::Id, Self::Data>> {
match data {
StructuredData::Reader(r) => &mut r.points,
StructuredData::Writer(w) => &mut w.points,
}
}
fn deserialized_storage(
reader: &mut StructuredDataReader,
) -> &mut Option<HashMap<StorageKey, DomRoot<Self>>> {
&mut reader.points_read_only
}
}
impl From<StorageKey> for DomPointId {
fn from(storage_key: StorageKey) -> DomPointId {
let namespace_id = PipelineNamespaceId(storage_key.name_space);
let index = DomPointIndex(
NonZeroU32::new(storage_key.index).expect("Deserialized point index is zero"),
);
DomPointId {
namespace_id,
index,
}
}
}
impl IntoStorageKey for DomPointId {
fn into_storage_key(self) -> StorageKey {
let DomPointIndex(index) = self.index;
StorageKey::new(self.namespace_id, index)
}
}