script/dom/event/
errorevent.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 dom_struct::dom_struct;
8use js::context::JSContext;
9use js::jsapi::Heap;
10use js::jsval::JSVal;
11use js::rust::{HandleObject, HandleValue, MutableHandleValue};
12use script_bindings::cell::DomRefCell;
13use script_bindings::domstring::TracedDOMString;
14use script_bindings::reflector::reflect_dom_object_with_proto;
15use stylo_atoms::Atom;
16
17use crate::dom::bindings::codegen::Bindings::ErrorEventBinding::{
18    ErrorEventInit, ErrorEventMethods,
19};
20use crate::dom::bindings::codegen::Bindings::EventBinding::EventMethods;
21use crate::dom::bindings::error::Fallible;
22use crate::dom::bindings::inheritance::Castable;
23use crate::dom::bindings::root::{AsHandleValue, DomRoot};
24use crate::dom::bindings::str::DOMString;
25use crate::dom::event::{Event, EventBubbles, EventCancelable};
26use crate::dom::globalscope::GlobalScope;
27
28#[dom_struct]
29pub(crate) struct ErrorEvent {
30    event: Event,
31    message: DomRefCell<TracedDOMString>,
32    filename: DomRefCell<TracedDOMString>,
33    lineno: Cell<u32>,
34    colno: Cell<u32>,
35    #[ignore_malloc_size_of = "Defined in rust-mozjs"]
36    error: Heap<JSVal>,
37}
38
39impl ErrorEvent {
40    fn new_inherited() -> ErrorEvent {
41        ErrorEvent {
42            event: Event::new_inherited(),
43            message: DomRefCell::new(DOMString::new().traced()),
44            filename: DomRefCell::new(DOMString::new().traced()),
45            lineno: Cell::new(0),
46            colno: Cell::new(0),
47            error: Heap::default(),
48        }
49    }
50
51    fn new_uninitialized(
52        cx: &mut JSContext,
53        global: &GlobalScope,
54        proto: Option<HandleObject>,
55    ) -> DomRoot<ErrorEvent> {
56        reflect_dom_object_with_proto(cx, Box::new(ErrorEvent::new_inherited()), global, proto)
57    }
58
59    #[expect(clippy::too_many_arguments)]
60    pub(crate) fn new(
61        cx: &mut JSContext,
62        global: &GlobalScope,
63        type_: Atom,
64        bubbles: EventBubbles,
65        cancelable: EventCancelable,
66        message: DOMString,
67        filename: DOMString,
68        lineno: u32,
69        colno: u32,
70        error: HandleValue,
71    ) -> DomRoot<ErrorEvent> {
72        Self::new_with_proto(
73            cx, global, None, type_, bubbles, cancelable, message, filename, lineno, colno, error,
74        )
75    }
76
77    #[expect(clippy::too_many_arguments)]
78    fn new_with_proto(
79        cx: &mut JSContext,
80        global: &GlobalScope,
81        proto: Option<HandleObject>,
82        type_: Atom,
83        bubbles: EventBubbles,
84        cancelable: EventCancelable,
85        message: DOMString,
86        filename: DOMString,
87        lineno: u32,
88        colno: u32,
89        error: HandleValue,
90    ) -> DomRoot<ErrorEvent> {
91        let ev = ErrorEvent::new_uninitialized(cx, global, proto);
92        {
93            let event = ev.upcast::<Event>();
94            event.init_event(type_, bool::from(bubbles), bool::from(cancelable));
95            *ev.message.safe_borrow_mut(cx.no_gc()) = message.traced();
96            *ev.filename.safe_borrow_mut(cx.no_gc()) = filename.traced();
97            ev.lineno.set(lineno);
98            ev.colno.set(colno);
99        }
100        ev.error.set(error.get());
101        ev
102    }
103}
104
105impl ErrorEventMethods<crate::DomTypeHolder> for ErrorEvent {
106    /// <https://html.spec.whatwg.org/multipage/#errorevent>
107    fn Constructor(
108        cx: &mut JSContext,
109        global: &GlobalScope,
110        proto: Option<HandleObject>,
111        type_: DOMString,
112        init: &ErrorEventInit,
113    ) -> Fallible<DomRoot<ErrorEvent>> {
114        let msg = match init.message.as_ref() {
115            Some(message) => message.clone(),
116            None => DOMString::new(),
117        };
118
119        let file_name = match init.filename.as_ref() {
120            Some(filename) => filename.clone(),
121            None => DOMString::new(),
122        };
123
124        let line_num = init.lineno.unwrap_or(0);
125
126        let col_num = init.colno.unwrap_or(0);
127
128        let bubbles = EventBubbles::from(init.parent.bubbles);
129
130        let cancelable = EventCancelable::from(init.parent.cancelable);
131
132        let event = ErrorEvent::new_with_proto(
133            cx,
134            global,
135            proto,
136            Atom::from(type_),
137            bubbles,
138            cancelable,
139            msg,
140            file_name,
141            line_num,
142            col_num,
143            init.error.as_handle_value(),
144        );
145        event.upcast::<Event>().set_composed(init.parent.composed);
146        Ok(event)
147    }
148
149    /// <https://html.spec.whatwg.org/multipage/#dom-errorevent-lineno>
150    fn Lineno(&self) -> u32 {
151        self.lineno.get()
152    }
153
154    /// <https://html.spec.whatwg.org/multipage/#dom-errorevent-colno>
155    fn Colno(&self) -> u32 {
156        self.colno.get()
157    }
158
159    /// <https://html.spec.whatwg.org/multipage/#dom-errorevent-message>
160    fn Message(&self) -> DOMString {
161        self.message.borrow().clone().root()
162    }
163
164    /// <https://html.spec.whatwg.org/multipage/#dom-errorevent-filename>
165    fn Filename(&self) -> DOMString {
166        self.filename.borrow().clone().root()
167    }
168
169    /// <https://html.spec.whatwg.org/multipage/#dom-errorevent-error>
170    fn Error(&self, mut retval: MutableHandleValue) {
171        retval.set(self.error.get());
172    }
173
174    /// <https://dom.spec.whatwg.org/#dom-event-istrusted>
175    fn IsTrusted(&self) -> bool {
176        self.event.IsTrusted()
177    }
178}
script/dom/event/errorevent.rs

script/dom/event/
errorevent.rs
