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::reflector::reflect_dom_object_with_proto;
14use stylo_atoms::Atom;
15
16use crate::dom::bindings::codegen::Bindings::ErrorEventBinding;
17use crate::dom::bindings::codegen::Bindings::ErrorEventBinding::ErrorEventMethods;
18use crate::dom::bindings::codegen::Bindings::EventBinding::EventMethods;
19use crate::dom::bindings::error::Fallible;
20use crate::dom::bindings::inheritance::Castable;
21use crate::dom::bindings::root::DomRoot;
22use crate::dom::bindings::str::DOMString;
23use crate::dom::bindings::trace::RootedTraceableBox;
24use crate::dom::event::{Event, EventBubbles, EventCancelable};
25use crate::dom::globalscope::GlobalScope;
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        cx: &mut JSContext,
52        global: &GlobalScope,
53        proto: Option<HandleObject>,
54    ) -> DomRoot<ErrorEvent> {
55        reflect_dom_object_with_proto(cx, Box::new(ErrorEvent::new_inherited()), global, proto)
56    }
57
58    #[allow(clippy::too_many_arguments)]
59    pub(crate) fn new(
60        cx: &mut JSContext,
61        global: &GlobalScope,
62        type_: Atom,
63        bubbles: EventBubbles,
64        cancelable: EventCancelable,
65        message: DOMString,
66        filename: DOMString,
67        lineno: u32,
68        colno: u32,
69        error: HandleValue,
70    ) -> DomRoot<ErrorEvent> {
71        Self::new_with_proto(
72            cx, global, None, type_, bubbles, cancelable, message, filename, lineno, colno, error,
73        )
74    }
75
76    #[allow(clippy::too_many_arguments)]
77    fn new_with_proto(
78        cx: &mut JSContext,
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    ) -> DomRoot<ErrorEvent> {
90        let ev = ErrorEvent::new_uninitialized(cx, global, proto);
91        {
92            let event = ev.upcast::<Event>();
93            event.init_event(type_, bool::from(bubbles), bool::from(cancelable));
94            *ev.message.borrow_mut() = message;
95            *ev.filename.borrow_mut() = filename;
96            ev.lineno.set(lineno);
97            ev.colno.set(colno);
98        }
99        ev.error.set(error.get());
100        ev
101    }
102}
103
104impl ErrorEventMethods<crate::DomTypeHolder> for ErrorEvent {
105    /// <https://html.spec.whatwg.org/multipage/#errorevent>
106    fn Constructor(
107        cx: &mut JSContext,
108        global: &GlobalScope,
109        proto: Option<HandleObject>,
110        type_: DOMString,
111        init: RootedTraceableBox<ErrorEventBinding::ErrorEventInit>,
112    ) -> Fallible<DomRoot<ErrorEvent>> {
113        let msg = match init.message.as_ref() {
114            Some(message) => message.clone(),
115            None => DOMString::new(),
116        };
117
118        let file_name = match init.filename.as_ref() {
119            Some(filename) => filename.clone(),
120            None => DOMString::new(),
121        };
122
123        let line_num = init.lineno.unwrap_or(0);
124
125        let col_num = init.colno.unwrap_or(0);
126
127        let bubbles = EventBubbles::from(init.parent.bubbles);
128
129        let cancelable = EventCancelable::from(init.parent.cancelable);
130
131        let event = ErrorEvent::new_with_proto(
132            cx,
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        );
144        event.upcast::<Event>().set_composed(init.parent.composed);
145        Ok(event)
146    }
147
148    /// <https://html.spec.whatwg.org/multipage/#dom-errorevent-lineno>
149    fn Lineno(&self) -> u32 {
150        self.lineno.get()
151    }
152
153    /// <https://html.spec.whatwg.org/multipage/#dom-errorevent-colno>
154    fn Colno(&self) -> u32 {
155        self.colno.get()
156    }
157
158    /// <https://html.spec.whatwg.org/multipage/#dom-errorevent-message>
159    fn Message(&self) -> DOMString {
160        self.message.borrow().clone()
161    }
162
163    /// <https://html.spec.whatwg.org/multipage/#dom-errorevent-filename>
164    fn Filename(&self) -> DOMString {
165        self.filename.borrow().clone()
166    }
167
168    /// <https://html.spec.whatwg.org/multipage/#dom-errorevent-error>
169    fn Error(&self, mut retval: MutableHandleValue) {
170        retval.set(self.error.get());
171    }
172
173    /// <https://dom.spec.whatwg.org/#dom-event-istrusted>
174    fn IsTrusted(&self) -> bool {
175        self.event.IsTrusted()
176    }
177}
script/dom/event/errorevent.rs

script/dom/event/
errorevent.rs
