script/dom/html/
htmllegendelement.rs1use dom_struct::dom_struct;
6use html5ever::{LocalName, Prefix};
7use js::rust::HandleObject;
8
9use crate::dom::bindings::codegen::Bindings::HTMLLegendElementBinding::HTMLLegendElementMethods;
10use crate::dom::bindings::codegen::Bindings::NodeBinding::NodeMethods;
11use crate::dom::bindings::inheritance::Castable;
12use crate::dom::bindings::root::{DomRoot, MutNullableDom};
13use crate::dom::document::Document;
14use crate::dom::element::Element;
15use crate::dom::html::htmlelement::HTMLElement;
16use crate::dom::html::htmlfieldsetelement::HTMLFieldSetElement;
17use crate::dom::html::htmlformelement::{FormControl, HTMLFormElement};
18use crate::dom::node::{BindContext, Node, UnbindContext};
19use crate::dom::virtualmethods::VirtualMethods;
20use crate::script_runtime::CanGc;
21
22#[dom_struct]
23pub(crate) struct HTMLLegendElement {
24 htmlelement: HTMLElement,
25 form_owner: MutNullableDom<HTMLFormElement>,
26}
27
28impl HTMLLegendElement {
29 fn new_inherited(
30 local_name: LocalName,
31 prefix: Option<Prefix>,
32 document: &Document,
33 ) -> HTMLLegendElement {
34 HTMLLegendElement {
35 htmlelement: HTMLElement::new_inherited(local_name, prefix, document),
36 form_owner: Default::default(),
37 }
38 }
39
40 #[cfg_attr(crown, allow(crown::unrooted_must_root))]
41 pub(crate) fn new(
42 local_name: LocalName,
43 prefix: Option<Prefix>,
44 document: &Document,
45 proto: Option<HandleObject>,
46 can_gc: CanGc,
47 ) -> DomRoot<HTMLLegendElement> {
48 Node::reflect_node_with_proto(
49 Box::new(HTMLLegendElement::new_inherited(
50 local_name, prefix, document,
51 )),
52 document,
53 proto,
54 can_gc,
55 )
56 }
57}
58
59impl VirtualMethods for HTMLLegendElement {
60 fn super_type(&self) -> Option<&dyn VirtualMethods> {
61 Some(self.upcast::<HTMLElement>() as &dyn VirtualMethods)
62 }
63
64 fn bind_to_tree(&self, context: &BindContext, can_gc: CanGc) {
65 if let Some(s) = self.super_type() {
66 s.bind_to_tree(context, can_gc);
67 }
68
69 self.upcast::<Element>()
70 .check_ancestors_disabled_state_for_form_control();
71 }
72
73 fn unbind_from_tree(&self, context: &UnbindContext, can_gc: CanGc) {
74 self.super_type().unwrap().unbind_from_tree(context, can_gc);
75
76 let node = self.upcast::<Node>();
77 let el = self.upcast::<Element>();
78 if node
79 .ancestors()
80 .any(|ancestor| ancestor.is::<HTMLFieldSetElement>())
81 {
82 el.check_ancestors_disabled_state_for_form_control();
83 } else {
84 el.check_disabled_attribute();
85 }
86 }
87}
88
89impl HTMLLegendElementMethods<crate::DomTypeHolder> for HTMLLegendElement {
90 fn GetForm(&self) -> Option<DomRoot<HTMLFormElement>> {
92 let parent = self.upcast::<Node>().GetParentElement()?;
93 if parent.is::<HTMLFieldSetElement>() {
94 return self.form_owner();
95 }
96 None
97 }
98}
99
100impl FormControl for HTMLLegendElement {
101 fn form_owner(&self) -> Option<DomRoot<HTMLFormElement>> {
102 self.form_owner.get()
103 }
104
105 fn set_form_owner(&self, form: Option<&HTMLFormElement>) {
106 self.form_owner.set(form);
107 }
108
109 fn to_element(&self) -> &Element {
110 self.upcast::<Element>()
111 }
112}