script/dom/event/
focusevent.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 dom_struct::dom_struct;
6use js::rust::HandleObject;
7use style::Atom;
8
9use crate::dom::bindings::codegen::Bindings::FocusEventBinding;
10use crate::dom::bindings::codegen::Bindings::FocusEventBinding::FocusEventMethods;
11use crate::dom::bindings::codegen::Bindings::UIEventBinding::UIEventMethods;
12use crate::dom::bindings::error::Fallible;
13use crate::dom::bindings::inheritance::Castable;
14use crate::dom::bindings::reflector::reflect_dom_object_with_proto;
15use crate::dom::bindings::root::DomRoot;
16use crate::dom::bindings::str::DOMString;
17use crate::dom::event::{Event, EventBubbles, EventCancelable};
18use crate::dom::eventtarget::EventTarget;
19use crate::dom::uievent::UIEvent;
20use crate::dom::window::Window;
21use crate::script_runtime::CanGc;
22
23/// The type of a [`FocusEvent`].
24pub(crate) enum FocusEventType {
25    /// Element gained focus. Doesn't bubble.
26    Focus,
27    /// Element lost focus. Doesn't bubble.
28    Blur,
29}
30
31#[dom_struct]
32pub(crate) struct FocusEvent {
33    uievent: UIEvent,
34}
35
36impl FocusEvent {
37    fn new_inherited() -> FocusEvent {
38        FocusEvent {
39            uievent: UIEvent::new_inherited(),
40        }
41    }
42
43    pub(crate) fn new_uninitialized(window: &Window, can_gc: CanGc) -> DomRoot<FocusEvent> {
44        Self::new_uninitialized_with_proto(window, None, can_gc)
45    }
46
47    pub(crate) fn new_uninitialized_with_proto(
48        window: &Window,
49        proto: Option<HandleObject>,
50        can_gc: CanGc,
51    ) -> DomRoot<FocusEvent> {
52        reflect_dom_object_with_proto(Box::new(FocusEvent::new_inherited()), window, proto, can_gc)
53    }
54
55    #[expect(clippy::too_many_arguments)]
56    pub(crate) fn new(
57        window: &Window,
58        event_type: Atom,
59        can_bubble: EventBubbles,
60        cancelable: EventCancelable,
61        view: Option<&Window>,
62        detail: i32,
63        related_target: Option<&EventTarget>,
64        can_gc: CanGc,
65    ) -> DomRoot<FocusEvent> {
66        Self::new_with_proto(
67            window,
68            None,
69            event_type,
70            can_bubble,
71            cancelable,
72            view,
73            detail,
74            related_target,
75            can_gc,
76        )
77    }
78
79    #[expect(clippy::too_many_arguments)]
80    fn new_with_proto(
81        window: &Window,
82        proto: Option<HandleObject>,
83        event_type: Atom,
84        can_bubble: EventBubbles,
85        cancelable: EventCancelable,
86        view: Option<&Window>,
87        detail: i32,
88        related_target: Option<&EventTarget>,
89        can_gc: CanGc,
90    ) -> DomRoot<FocusEvent> {
91        let ev = FocusEvent::new_uninitialized_with_proto(window, proto, can_gc);
92        ev.upcast::<UIEvent>().init_event(
93            event_type,
94            bool::from(can_bubble),
95            bool::from(cancelable),
96            view,
97            detail,
98        );
99        ev.upcast::<Event>().set_related_target(related_target);
100        ev
101    }
102}
103
104impl FocusEventMethods<crate::DomTypeHolder> for FocusEvent {
105    /// <https://w3c.github.io/uievents/#dom-focusevent-focusevent>
106    fn Constructor(
107        window: &Window,
108        proto: Option<HandleObject>,
109        can_gc: CanGc,
110        event_type: DOMString,
111        init: &FocusEventBinding::FocusEventInit,
112    ) -> Fallible<DomRoot<FocusEvent>> {
113        let bubbles = EventBubbles::from(init.parent.parent.bubbles);
114        let cancelable = EventCancelable::from(init.parent.parent.cancelable);
115        let event = FocusEvent::new_with_proto(
116            window,
117            proto,
118            event_type.into(),
119            bubbles,
120            cancelable,
121            init.parent.view.as_deref(),
122            init.parent.detail,
123            init.relatedTarget.as_deref(),
124            can_gc,
125        );
126        event
127            .upcast::<Event>()
128            .set_composed(init.parent.parent.composed);
129        Ok(event)
130    }
131
132    /// <https://w3c.github.io/uievents/#widl-FocusEvent-relatedTarget>
133    fn GetRelatedTarget(&self) -> Option<DomRoot<EventTarget>> {
134        self.upcast::<Event>().related_target()
135    }
136
137    /// <https://dom.spec.whatwg.org/#dom-event-istrusted>
138    fn IsTrusted(&self) -> bool {
139        self.uievent.IsTrusted()
140    }
141}
script/dom/event/focusevent.rs

script/dom/event/
focusevent.rs
