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
36#[allow(non_snake_case)]
37impl DOMPointReadOnly {
38    pub(crate) fn new_inherited(x: f64, y: f64, z: f64, w: f64) -> DOMPointReadOnly {
39        DOMPointReadOnly {
40            x: Cell::new(x),
41            y: Cell::new(y),
42            z: Cell::new(z),
43            w: Cell::new(w),
44            reflector_: Reflector::new(),
45        }
46    }
47
48    pub(crate) fn new(
49        global: &GlobalScope,
50        x: f64,
51        y: f64,
52        z: f64,
53        w: f64,
54        can_gc: CanGc,
55    ) -> DomRoot<DOMPointReadOnly> {
56        Self::new_with_proto(global, None, x, y, z, w, can_gc)
57    }
58
59    fn new_with_proto(
60        global: &GlobalScope,
61        proto: Option<HandleObject>,
62        x: f64,
63        y: f64,
64        z: f64,
65        w: f64,
66        can_gc: CanGc,
67    ) -> DomRoot<DOMPointReadOnly> {
68        reflect_dom_object_with_proto(
69            Box::new(DOMPointReadOnly::new_inherited(x, y, z, w)),
70            global,
71            proto,
72            can_gc,
73        )
74    }
75}
76
77#[allow(non_snake_case)]
78impl DOMPointReadOnlyMethods<crate::DomTypeHolder> for DOMPointReadOnly {
79    /// <https://drafts.fxtf.org/geometry/#dom-dompoint-dompoint>
80    fn Constructor(
81        global: &GlobalScope,
82        proto: Option<HandleObject>,
83        can_gc: CanGc,
84        x: f64,
85        y: f64,
86        z: f64,
87        w: f64,
88    ) -> Fallible<DomRoot<DOMPointReadOnly>> {
89        Ok(DOMPointReadOnly::new_with_proto(
90            global, proto, x, y, z, w, can_gc,
91        ))
92    }
93
94    /// <https://drafts.fxtf.org/geometry/#dom-dompointreadonly-frompoint>
95    fn FromPoint(global: &GlobalScope, init: &DOMPointInit, can_gc: CanGc) -> DomRoot<Self> {
96        Self::new(global, init.x, init.y, init.z, init.w, can_gc)
97    }
98
99    /// <https://dev.w3.org/fxtf/geometry/Overview.html#dom-dompointreadonly-x>
100    fn X(&self) -> f64 {
101        self.x.get()
102    }
103
104    /// <https://dev.w3.org/fxtf/geometry/Overview.html#dom-dompointreadonly-y>
105    fn Y(&self) -> f64 {
106        self.y.get()
107    }
108
109    /// <https://dev.w3.org/fxtf/geometry/Overview.html#dom-dompointreadonly-z>
110    fn Z(&self) -> f64 {
111        self.z.get()
112    }
113
114    /// <https://dev.w3.org/fxtf/geometry/Overview.html#dom-dompointreadonly-w>
115    fn W(&self) -> f64 {
116        self.w.get()
117    }
118
119    /// <https://dev.w3.org/fxtf/geometry/Overview.html#dom-dompointreadonly-matrixtransform>
120    /// <https://drafts.fxtf.org/geometry/Overview.html#transform-a-point-with-a-matrix>
121    fn MatrixTransform(
122        &self,
123        matrix: &DOMMatrixInit,
124        can_gc: CanGc,
125    ) -> Fallible<DomRoot<DOMPoint>> {
126        // Let matrixObject be the result of invoking create a DOMMatrix from the dictionary matrix.
127        let matrix_object = match dommatrixinit_to_matrix(matrix) {
128            Ok(converted) => converted,
129            Err(exception) => {
130                return Err(exception);
131            },
132        };
133        // Steps 1-4 of transforming a point with a matrix
134        let x = self.X();
135        let y = self.Y();
136        let z = self.Z();
137        let w = self.W();
138        // Steps 5-12 of transforming a point with a matrix
139        let m = &matrix_object.1;
140        let transformed_point = DOMPointInit {
141            x: m.m11 * x + m.m21 * y + m.m31 * z + m.m41 * w,
142            y: m.m12 * x + m.m22 * y + m.m32 * z + m.m42 * w,
143            z: m.m13 * x + m.m23 * y + m.m33 * z + m.m43 * w,
144            w: m.m14 * x + m.m24 * y + m.m34 * z + m.m44 * w,
145        };
146        // Return the result of invoking transform a point with a matrix, given the current point
147        // and matrixObject. The current point does not get modified.
148        Ok(DOMPoint::new_from_init(
149            &self.global(),
150            &transformed_point,
151            can_gc,
152        ))
153    }
154}
155
156#[allow(non_snake_case)]
157pub(crate) trait DOMPointWriteMethods {
158    fn SetX(&self, value: f64);
159    fn SetY(&self, value: f64);
160    fn SetZ(&self, value: f64);
161    fn SetW(&self, value: f64);
162}
163
164impl DOMPointWriteMethods for DOMPointReadOnly {
165    fn SetX(&self, value: f64) {
166        self.x.set(value);
167    }
168
169    fn SetY(&self, value: f64) {
170        self.y.set(value);
171    }
172
173    fn SetZ(&self, value: f64) {
174        self.z.set(value);
175    }
176
177    fn SetW(&self, value: f64) {
178        self.w.set(value);
179    }
180}
181
182impl Serializable for DOMPointReadOnly {
183    type Index = DomPointIndex;
184    type Data = DomPoint;
185
186    fn serialize(&self) -> Result<(DomPointId, Self::Data), ()> {
187        let serialized = DomPoint {
188            x: self.x.get(),
189            y: self.y.get(),
190            z: self.z.get(),
191            w: self.w.get(),
192        };
193        Ok((DomPointId::new(), serialized))
194    }
195
196    fn deserialize(
197        owner: &GlobalScope,
198        serialized: Self::Data,
199        can_gc: CanGc,
200    ) -> Result<DomRoot<Self>, ()>
201    where
202        Self: Sized,
203    {
204        Ok(Self::new(
205            owner,
206            serialized.x,
207            serialized.y,
208            serialized.z,
209            serialized.w,
210            can_gc,
211        ))
212    }
213
214    fn serialized_storage<'a>(
215        data: StructuredData<'a, '_>,
216    ) -> &'a mut Option<FxHashMap<DomPointId, Self::Data>> {
217        match data {
218            StructuredData::Reader(r) => &mut r.points,
219            StructuredData::Writer(w) => &mut w.points,
220        }
221    }
222}
script/dom/dompointreadonly.rs

script/dom/
dompointreadonly.rs
