script/dom/
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::jsapi::Heap;
9use js::jsval::JSVal;
10use js::rust::{HandleObject, HandleValue, MutableHandleValue};
11use stylo_atoms::Atom;
12
13use crate::dom::bindings::cell::DomRefCell;
14use crate::dom::bindings::codegen::Bindings::ErrorEventBinding;
15use crate::dom::bindings::codegen::Bindings::ErrorEventBinding::ErrorEventMethods;
16use crate::dom::bindings::codegen::Bindings::EventBinding::EventMethods;
17use crate::dom::bindings::error::Fallible;
18use crate::dom::bindings::inheritance::Castable;
19use crate::dom::bindings::reflector::reflect_dom_object_with_proto;
20use crate::dom::bindings::root::DomRoot;
21use crate::dom::bindings::str::DOMString;
22use crate::dom::bindings::trace::RootedTraceableBox;
23use crate::dom::event::{Event, EventBubbles, EventCancelable};
24use crate::dom::globalscope::GlobalScope;
25use crate::script_runtime::{CanGc, JSContext};
26
27#[dom_struct]
28pub(crate) struct ErrorEvent {
29    event: Event,
30    message: DomRefCell<DOMString>,
31    filename: DomRefCell<DOMString>,
32    lineno: Cell<u32>,
33    colno: Cell<u32>,
34    #[ignore_malloc_size_of = "Defined in rust-mozjs"]
35    error: Heap<JSVal>,
36}
37
38impl ErrorEvent {
39    fn new_inherited() -> ErrorEvent {
40        ErrorEvent {
41            event: Event::new_inherited(),
42            message: DomRefCell::new(DOMString::new()),
43            filename: DomRefCell::new(DOMString::new()),
44            lineno: Cell::new(0),
45            colno: Cell::new(0),
46            error: Heap::default(),
47        }
48    }
49
50    fn new_uninitialized(
51        global: &GlobalScope,
52        proto: Option<HandleObject>,
53        can_gc: CanGc,
54    ) -> DomRoot<ErrorEvent> {
55        reflect_dom_object_with_proto(Box::new(ErrorEvent::new_inherited()), global, proto, can_gc)
56    }
57
58    #[allow(clippy::too_many_arguments)]
59    pub(crate) fn new(
60        global: &GlobalScope,
61        type_: Atom,
62        bubbles: EventBubbles,
63        cancelable: EventCancelable,
64        message: DOMString,
65        filename: DOMString,
66        lineno: u32,
67        colno: u32,
68        error: HandleValue,
69        can_gc: CanGc,
70    ) -> DomRoot<ErrorEvent> {
71        Self::new_with_proto(
72            global, None, type_, bubbles, cancelable, message, filename, lineno, colno, error,
73            can_gc,
74        )
75    }
76
77    #[allow(clippy::too_many_arguments)]
78    fn new_with_proto(
79        global: &GlobalScope,
80        proto: Option<HandleObject>,
81        type_: Atom,
82        bubbles: EventBubbles,
83        cancelable: EventCancelable,
84        message: DOMString,
85        filename: DOMString,
86        lineno: u32,
87        colno: u32,
88        error: HandleValue,
89        can_gc: CanGc,
90    ) -> DomRoot<ErrorEvent> {
91        let ev = ErrorEvent::new_uninitialized(global, proto, can_gc);
92        {
93            let event = ev.upcast::<Event>();
94            event.init_event(type_, bool::from(bubbles), bool::from(cancelable));
95            *ev.message.borrow_mut() = message;
96            *ev.filename.borrow_mut() = filename;
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        global: &GlobalScope,
109        proto: Option<HandleObject>,
110        can_gc: CanGc,
111        type_: DOMString,
112        init: RootedTraceableBox<ErrorEventBinding::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            global,
134            proto,
135            Atom::from(type_),
136            bubbles,
137            cancelable,
138            msg,
139            file_name,
140            line_num,
141            col_num,
142            init.error.handle(),
143            can_gc,
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()
162    }
163
164    // https://html.spec.whatwg.org/multipage/#dom-errorevent-filename
165    fn Filename(&self) -> DOMString {
166        self.filename.borrow().clone()
167    }
168
169    // https://html.spec.whatwg.org/multipage/#dom-errorevent-error
170    fn Error(&self, _cx: JSContext, 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/errorevent.rs

script/dom/
errorevent.rs
