script/dom/
dompointreadonly.rs

1/* This Source Code Form is subject to the terms of the Mozilla Public
2 * License, v. 2.0. If a copy of the MPL was not distributed with this
3 * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
4
5use std::cell::Cell;
6
7use base::id::{DomPointId, DomPointIndex};
8use constellation_traits::DomPoint;
9use dom_struct::dom_struct;
10use js::rust::HandleObject;
11use rustc_hash::FxHashMap;
12
13use crate::dom::bindings::codegen::Bindings::DOMMatrixBinding::DOMMatrixInit;
14use crate::dom::bindings::codegen::Bindings::DOMPointBinding::DOMPointInit;
15use crate::dom::bindings::codegen::Bindings::DOMPointReadOnlyBinding::DOMPointReadOnlyMethods;
16use crate::dom::bindings::error::Fallible;
17use crate::dom::bindings::reflector::{DomGlobal, Reflector, reflect_dom_object_with_proto};
18use crate::dom::bindings::root::DomRoot;
19use crate::dom::bindings::serializable::Serializable;
20use crate::dom::bindings::structuredclone::StructuredData;
21use crate::dom::dommatrixreadonly::dommatrixinit_to_matrix;
22use crate::dom::globalscope::GlobalScope;
23use crate::dom::types::DOMPoint;
24use crate::script_runtime::CanGc;
25
26/// <http://dev.w3.org/fxtf/geometry/Overview.html#dompointreadonly>
27#[dom_struct]
28pub(crate) struct DOMPointReadOnly {
29    reflector_: Reflector,
30    x: Cell<f64>,
31    y: Cell<f64>,
32    z: Cell<f64>,
33    w: Cell<f64>,
34}
35
36impl DOMPointReadOnly {
37    pub(crate) fn new_inherited(x: f64, y: f64, z: f64, w: f64) -> DOMPointReadOnly {
38        DOMPointReadOnly {
39            x: Cell::new(x),
40            y: Cell::new(y),
41            z: Cell::new(z),
42            w: Cell::new(w),
43            reflector_: Reflector::new(),
44        }
45    }
46
47    pub(crate) fn new(
48        global: &GlobalScope,
49        x: f64,
50        y: f64,
51        z: f64,
52        w: f64,
53        can_gc: CanGc,
54    ) -> DomRoot<DOMPointReadOnly> {
55        Self::new_with_proto(global, None, x, y, z, w, can_gc)
56    }
57
58    fn new_with_proto(
59        global: &GlobalScope,
60        proto: Option<HandleObject>,
61        x: f64,
62        y: f64,
63        z: f64,
64        w: f64,
65        can_gc: CanGc,
66    ) -> DomRoot<DOMPointReadOnly> {
67        reflect_dom_object_with_proto(
68            Box::new(DOMPointReadOnly::new_inherited(x, y, z, w)),
69            global,
70            proto,
71            can_gc,
72        )
73    }
74}
75
76impl DOMPointReadOnlyMethods<crate::DomTypeHolder> for DOMPointReadOnly {
77    /// <https://drafts.fxtf.org/geometry/#dom-dompoint-dompoint>
78    fn Constructor(
79        global: &GlobalScope,
80        proto: Option<HandleObject>,
81        can_gc: CanGc,
82        x: f64,
83        y: f64,
84        z: f64,
85        w: f64,
86    ) -> Fallible<DomRoot<DOMPointReadOnly>> {
87        Ok(DOMPointReadOnly::new_with_proto(
88            global, proto, x, y, z, w, can_gc,
89        ))
90    }
91
92    /// <https://drafts.fxtf.org/geometry/#dom-dompointreadonly-frompoint>
93    fn FromPoint(global: &GlobalScope, init: &DOMPointInit, can_gc: CanGc) -> DomRoot<Self> {
94        Self::new(global, init.x, init.y, init.z, init.w, can_gc)
95    }
96
97    /// <https://dev.w3.org/fxtf/geometry/Overview.html#dom-dompointreadonly-x>
98    fn X(&self) -> f64 {
99        self.x.get()
100    }
101
102    /// <https://dev.w3.org/fxtf/geometry/Overview.html#dom-dompointreadonly-y>
103    fn Y(&self) -> f64 {
104        self.y.get()
105    }
106
107    /// <https://dev.w3.org/fxtf/geometry/Overview.html#dom-dompointreadonly-z>
108    fn Z(&self) -> f64 {
109        self.z.get()
110    }
111
112    /// <https://dev.w3.org/fxtf/geometry/Overview.html#dom-dompointreadonly-w>
113    fn W(&self) -> f64 {
114        self.w.get()
115    }
116
117    /// <https://dev.w3.org/fxtf/geometry/Overview.html#dom-dompointreadonly-matrixtransform>
118    /// <https://drafts.fxtf.org/geometry/Overview.html#transform-a-point-with-a-matrix>
119    fn MatrixTransform(
120        &self,
121        matrix: &DOMMatrixInit,
122        can_gc: CanGc,
123    ) -> Fallible<DomRoot<DOMPoint>> {
124        // Let matrixObject be the result of invoking create a DOMMatrix from the dictionary matrix.
125        let matrix_object = match dommatrixinit_to_matrix(matrix) {
126            Ok(converted) => converted,
127            Err(exception) => {
128                return Err(exception);
129            },
130        };
131        // Steps 1-4 of transforming a point with a matrix
132        let x = self.X();
133        let y = self.Y();
134        let z = self.Z();
135        let w = self.W();
136        // Steps 5-12 of transforming a point with a matrix
137        let m = &matrix_object.1;
138        let transformed_point = DOMPointInit {
139            x: m.m11 * x + m.m21 * y + m.m31 * z + m.m41 * w,
140            y: m.m12 * x + m.m22 * y + m.m32 * z + m.m42 * w,
141            z: m.m13 * x + m.m23 * y + m.m33 * z + m.m43 * w,
142            w: m.m14 * x + m.m24 * y + m.m34 * z + m.m44 * w,
143        };
144        // Return the result of invoking transform a point with a matrix, given the current point
145        // and matrixObject. The current point does not get modified.
146        Ok(DOMPoint::new_from_init(
147            &self.global(),
148            &transformed_point,
149            can_gc,
150        ))
151    }
152}
153
154#[expect(non_snake_case)]
155pub(crate) trait DOMPointWriteMethods {
156    fn SetX(&self, value: f64);
157    fn SetY(&self, value: f64);
158    fn SetZ(&self, value: f64);
159    fn SetW(&self, value: f64);
160}
161
162impl DOMPointWriteMethods for DOMPointReadOnly {
163    fn SetX(&self, value: f64) {
164        self.x.set(value);
165    }
166
167    fn SetY(&self, value: f64) {
168        self.y.set(value);
169    }
170
171    fn SetZ(&self, value: f64) {
172        self.z.set(value);
173    }
174
175    fn SetW(&self, value: f64) {
176        self.w.set(value);
177    }
178}
179
180impl Serializable for DOMPointReadOnly {
181    type Index = DomPointIndex;
182    type Data = DomPoint;
183
184    fn serialize(&self) -> Result<(DomPointId, Self::Data), ()> {
185        let serialized = DomPoint {
186            x: self.x.get(),
187            y: self.y.get(),
188            z: self.z.get(),
189            w: self.w.get(),
190        };
191        Ok((DomPointId::new(), serialized))
192    }
193
194    fn deserialize(
195        owner: &GlobalScope,
196        serialized: Self::Data,
197        can_gc: CanGc,
198    ) -> Result<DomRoot<Self>, ()>
199    where
200        Self: Sized,
201    {
202        Ok(Self::new(
203            owner,
204            serialized.x,
205            serialized.y,
206            serialized.z,
207            serialized.w,
208            can_gc,
209        ))
210    }
211
212    fn serialized_storage<'a>(
213        data: StructuredData<'a, '_>,
214    ) -> &'a mut Option<FxHashMap<DomPointId, Self::Data>> {
215        match data {
216            StructuredData::Reader(r) => &mut r.points,
217            StructuredData::Writer(w) => &mut w.points,
218        }
219    }
220}
script/dom/dompointreadonly.rs

script/dom/
dompointreadonly.rs
