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_and_cx;
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;
26use crate::script_runtime::JSContext as SafeJSContext;
27
28#[dom_struct]
29pub(crate) struct ErrorEvent {
30    event: Event,
31    message: DomRefCell<DOMString>,
32    filename: DomRefCell<DOMString>,
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()),
44            filename: DomRefCell::new(DOMString::new()),
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_and_cx(
57            Box::new(ErrorEvent::new_inherited()),
58            global,
59            proto,
60            cx,
61        )
62    }
63
64    #[allow(clippy::too_many_arguments)]
65    pub(crate) fn new(
66        cx: &mut JSContext,
67        global: &GlobalScope,
68        type_: Atom,
69        bubbles: EventBubbles,
70        cancelable: EventCancelable,
71        message: DOMString,
72        filename: DOMString,
73        lineno: u32,
74        colno: u32,
75        error: HandleValue,
76    ) -> DomRoot<ErrorEvent> {
77        Self::new_with_proto(
78            cx, global, None, type_, bubbles, cancelable, message, filename, lineno, colno, error,
79        )
80    }
81
82    #[allow(clippy::too_many_arguments)]
83    fn new_with_proto(
84        cx: &mut JSContext,
85        global: &GlobalScope,
86        proto: Option<HandleObject>,
87        type_: Atom,
88        bubbles: EventBubbles,
89        cancelable: EventCancelable,
90        message: DOMString,
91        filename: DOMString,
92        lineno: u32,
93        colno: u32,
94        error: HandleValue,
95    ) -> DomRoot<ErrorEvent> {
96        let ev = ErrorEvent::new_uninitialized(cx, global, proto);
97        {
98            let event = ev.upcast::<Event>();
99            event.init_event(type_, bool::from(bubbles), bool::from(cancelable));
100            *ev.message.borrow_mut() = message;
101            *ev.filename.borrow_mut() = filename;
102            ev.lineno.set(lineno);
103            ev.colno.set(colno);
104        }
105        ev.error.set(error.get());
106        ev
107    }
108}
109
110impl ErrorEventMethods<crate::DomTypeHolder> for ErrorEvent {
111    /// <https://html.spec.whatwg.org/multipage/#errorevent>
112    fn Constructor(
113        cx: &mut JSContext,
114        global: &GlobalScope,
115        proto: Option<HandleObject>,
116        type_: DOMString,
117        init: RootedTraceableBox<ErrorEventBinding::ErrorEventInit>,
118    ) -> Fallible<DomRoot<ErrorEvent>> {
119        let msg = match init.message.as_ref() {
120            Some(message) => message.clone(),
121            None => DOMString::new(),
122        };
123
124        let file_name = match init.filename.as_ref() {
125            Some(filename) => filename.clone(),
126            None => DOMString::new(),
127        };
128
129        let line_num = init.lineno.unwrap_or(0);
130
131        let col_num = init.colno.unwrap_or(0);
132
133        let bubbles = EventBubbles::from(init.parent.bubbles);
134
135        let cancelable = EventCancelable::from(init.parent.cancelable);
136
137        let event = ErrorEvent::new_with_proto(
138            cx,
139            global,
140            proto,
141            Atom::from(type_),
142            bubbles,
143            cancelable,
144            msg,
145            file_name,
146            line_num,
147            col_num,
148            init.error.handle(),
149        );
150        event.upcast::<Event>().set_composed(init.parent.composed);
151        Ok(event)
152    }
153
154    /// <https://html.spec.whatwg.org/multipage/#dom-errorevent-lineno>
155    fn Lineno(&self) -> u32 {
156        self.lineno.get()
157    }
158
159    /// <https://html.spec.whatwg.org/multipage/#dom-errorevent-colno>
160    fn Colno(&self) -> u32 {
161        self.colno.get()
162    }
163
164    /// <https://html.spec.whatwg.org/multipage/#dom-errorevent-message>
165    fn Message(&self) -> DOMString {
166        self.message.borrow().clone()
167    }
168
169    /// <https://html.spec.whatwg.org/multipage/#dom-errorevent-filename>
170    fn Filename(&self) -> DOMString {
171        self.filename.borrow().clone()
172    }
173
174    /// <https://html.spec.whatwg.org/multipage/#dom-errorevent-error>
175    fn Error(&self, _cx: SafeJSContext, mut retval: MutableHandleValue) {
176        retval.set(self.error.get());
177    }
178
179    /// <https://dom.spec.whatwg.org/#dom-event-istrusted>
180    fn IsTrusted(&self) -> bool {
181        self.event.IsTrusted()
182    }
183}
script/dom/event/errorevent.rs

script/dom/event/
errorevent.rs
