script/dom/html/
htmloptgroupelement.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 html5ever::{LocalName, Prefix, local_name};
7use js::context::JSContext;
8use js::rust::HandleObject;
9use script_bindings::str::DOMString;
10use stylo_dom::ElementState;
11
12use crate::dom::attr::Attr;
13use crate::dom::bindings::codegen::Bindings::HTMLOptGroupElementBinding::HTMLOptGroupElementMethods;
14use crate::dom::bindings::codegen::GenericBindings::NodeBinding::Node_Binding::NodeMethods;
15use crate::dom::bindings::inheritance::Castable;
16use crate::dom::bindings::root::DomRoot;
17use crate::dom::document::Document;
18use crate::dom::element::{AttributeMutation, Element};
19use crate::dom::html::htmlelement::HTMLElement;
20use crate::dom::html::htmloptionelement::HTMLOptionElement;
21use crate::dom::html::htmlselectelement::HTMLSelectElement;
22use crate::dom::node::{BindContext, Node, UnbindContext};
23use crate::dom::validation::Validatable;
24use crate::dom::validitystate::ValidationFlags;
25use crate::dom::virtualmethods::VirtualMethods;
26use crate::script_runtime::CanGc;
27
28/// <https://html.spec.whatwg.org/multipage/#htmloptgroupelement>
29#[dom_struct]
30pub(crate) struct HTMLOptGroupElement {
31    htmlelement: HTMLElement,
32}
33
34impl HTMLOptGroupElement {
35    fn new_inherited(
36        local_name: LocalName,
37        prefix: Option<Prefix>,
38        document: &Document,
39    ) -> HTMLOptGroupElement {
40        HTMLOptGroupElement {
41            htmlelement: HTMLElement::new_inherited_with_state(
42                ElementState::ENABLED,
43                local_name,
44                prefix,
45                document,
46            ),
47        }
48    }
49
50    pub(crate) fn new(
51        cx: &mut js::context::JSContext,
52        local_name: LocalName,
53        prefix: Option<Prefix>,
54        document: &Document,
55        proto: Option<HandleObject>,
56    ) -> DomRoot<HTMLOptGroupElement> {
57        Node::reflect_node_with_proto(
58            cx,
59            Box::new(HTMLOptGroupElement::new_inherited(
60                local_name, prefix, document,
61            )),
62            document,
63            proto,
64        )
65    }
66
67    fn update_select_validity(&self, can_gc: CanGc) {
68        if let Some(select) = self.owner_select_element() {
69            select
70                .validity_state(can_gc)
71                .perform_validation_and_update(ValidationFlags::all(), can_gc);
72        }
73    }
74
75    fn owner_select_element(&self) -> Option<DomRoot<HTMLSelectElement>> {
76        self.upcast::<Node>()
77            .GetParentNode()
78            .and_then(DomRoot::downcast)
79    }
80}
81
82impl HTMLOptGroupElementMethods<crate::DomTypeHolder> for HTMLOptGroupElement {
83    // https://html.spec.whatwg.org/multipage/#dom-optgroup-disabled
84    make_bool_getter!(Disabled, "disabled");
85
86    // https://html.spec.whatwg.org/multipage/#dom-optgroup-disabled
87    make_bool_setter!(SetDisabled, "disabled");
88
89    // https://html.spec.whatwg.org/multipage/#dom-optgroup-label
90    make_getter!(Label, "label");
91
92    // https://html.spec.whatwg.org/multipage/#dom-optgroup-label
93    make_setter!(SetLabel, "label");
94}
95
96impl VirtualMethods for HTMLOptGroupElement {
97    fn super_type(&self) -> Option<&dyn VirtualMethods> {
98        Some(self.upcast::<HTMLElement>() as &dyn VirtualMethods)
99    }
100
101    fn attribute_mutated(
102        &self,
103        cx: &mut js::context::JSContext,
104        attr: &Attr,
105        mutation: AttributeMutation,
106    ) {
107        self.super_type()
108            .unwrap()
109            .attribute_mutated(cx, attr, mutation);
110        if attr.local_name() == &local_name!("disabled") {
111            let disabled_state = match mutation {
112                AttributeMutation::Set(None, _) => true,
113                AttributeMutation::Set(Some(_), _) => {
114                    // Option group was already disabled.
115                    return;
116                },
117                AttributeMutation::Removed => false,
118            };
119            let el = self.upcast::<Element>();
120            el.set_disabled_state(disabled_state);
121            el.set_enabled_state(!disabled_state);
122            let options = el
123                .upcast::<Node>()
124                .children()
125                .filter(|child| child.is::<HTMLOptionElement>())
126                .map(|child| DomRoot::from_ref(child.downcast::<HTMLOptionElement>().unwrap()));
127            if disabled_state {
128                for option in options {
129                    let el = option.upcast::<Element>();
130                    el.set_disabled_state(true);
131                    el.set_enabled_state(false);
132                }
133            } else {
134                for option in options {
135                    let el = option.upcast::<Element>();
136                    el.check_disabled_attribute();
137                }
138            }
139        }
140    }
141
142    fn bind_to_tree(&self, cx: &mut JSContext, context: &BindContext) {
143        if let Some(super_type) = self.super_type() {
144            super_type.bind_to_tree(cx, context);
145        }
146
147        self.update_select_validity(CanGc::from_cx(cx));
148    }
149
150    fn unbind_from_tree(&self, context: &UnbindContext, can_gc: CanGc) {
151        self.super_type().unwrap().unbind_from_tree(context, can_gc);
152
153        if let Some(select) = context.parent.downcast::<HTMLSelectElement>() {
154            select
155                .validity_state(can_gc)
156                .perform_validation_and_update(ValidationFlags::all(), can_gc);
157        }
158    }
159}
script/dom/html/htmloptgroupelement.rs

script/dom/html/
htmloptgroupelement.rs
