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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
use crate::dom::attr::Attr;
use crate::dom::bindings::codegen::Bindings::HTMLFieldSetElementBinding;
use crate::dom::bindings::codegen::Bindings::HTMLFieldSetElementBinding::HTMLFieldSetElementMethods;
use crate::dom::bindings::inheritance::{Castable, ElementTypeId, HTMLElementTypeId, NodeTypeId};
use crate::dom::bindings::root::{DomRoot, MutNullableDom};
use crate::dom::document::Document;
use crate::dom::element::{AttributeMutation, Element};
use crate::dom::htmlcollection::{CollectionFilter, HTMLCollection};
use crate::dom::htmlelement::HTMLElement;
use crate::dom::htmlformelement::{FormControl, HTMLFormElement};
use crate::dom::htmllegendelement::HTMLLegendElement;
use crate::dom::node::{window_from_node, Node, ShadowIncluding};
use crate::dom::validitystate::ValidityState;
use crate::dom::virtualmethods::VirtualMethods;
use dom_struct::dom_struct;
use html5ever::{LocalName, Prefix};
use std::default::Default;
use style::element_state::ElementState;
#[dom_struct]
pub struct HTMLFieldSetElement {
htmlelement: HTMLElement,
form_owner: MutNullableDom<HTMLFormElement>,
}
impl HTMLFieldSetElement {
fn new_inherited(
local_name: LocalName,
prefix: Option<Prefix>,
document: &Document,
) -> HTMLFieldSetElement {
HTMLFieldSetElement {
htmlelement: HTMLElement::new_inherited_with_state(
ElementState::IN_ENABLED_STATE,
local_name,
prefix,
document,
),
form_owner: Default::default(),
}
}
#[allow(unrooted_must_root)]
pub fn new(
local_name: LocalName,
prefix: Option<Prefix>,
document: &Document,
) -> DomRoot<HTMLFieldSetElement> {
Node::reflect_node(
Box::new(HTMLFieldSetElement::new_inherited(
local_name, prefix, document,
)),
document,
HTMLFieldSetElementBinding::Wrap,
)
}
}
impl HTMLFieldSetElementMethods for HTMLFieldSetElement {
// https://html.spec.whatwg.org/multipage/#dom-fieldset-elements
fn Elements(&self) -> DomRoot<HTMLCollection> {
#[derive(JSTraceable, MallocSizeOf)]
struct ElementsFilter;
impl CollectionFilter for ElementsFilter {
fn filter<'a>(&self, elem: &'a Element, _root: &'a Node) -> bool {
elem.downcast::<HTMLElement>()
.map_or(false, HTMLElement::is_listed_element)
}
}
let filter = Box::new(ElementsFilter);
let window = window_from_node(self);
HTMLCollection::create(&window, self.upcast(), filter)
}
// https://html.spec.whatwg.org/multipage/#dom-cva-validity
fn Validity(&self) -> DomRoot<ValidityState> {
let window = window_from_node(self);
ValidityState::new(&window, self.upcast())
}
// https://html.spec.whatwg.org/multipage/#dom-fieldset-disabled
make_bool_getter!(Disabled, "disabled");
// https://html.spec.whatwg.org/multipage/#dom-fieldset-disabled
make_bool_setter!(SetDisabled, "disabled");
// https://html.spec.whatwg.org/multipage/#dom-fae-form
fn GetForm(&self) -> Option<DomRoot<HTMLFormElement>> {
self.form_owner()
}
}
impl VirtualMethods for HTMLFieldSetElement {
fn super_type(&self) -> Option<&dyn VirtualMethods> {
Some(self.upcast::<HTMLElement>() as &dyn VirtualMethods)
}
fn attribute_mutated(&self, attr: &Attr, mutation: AttributeMutation) {
self.super_type().unwrap().attribute_mutated(attr, mutation);
match attr.local_name() {
&local_name!("disabled") => {
let disabled_state = match mutation {
AttributeMutation::Set(None) => true,
AttributeMutation::Set(Some(_)) => {
// Fieldset was already disabled before.
return;
},
AttributeMutation::Removed => false,
};
let node = self.upcast::<Node>();
let el = self.upcast::<Element>();
el.set_disabled_state(disabled_state);
el.set_enabled_state(!disabled_state);
let mut found_legend = false;
let children = node.children().filter(|node| {
if found_legend {
true
} else if node.is::<HTMLLegendElement>() {
found_legend = true;
false
} else {
true
}
});
let fields = children.flat_map(|child| {
child
.traverse_preorder(ShadowIncluding::No)
.filter(|descendant| match descendant.type_id() {
NodeTypeId::Element(ElementTypeId::HTMLElement(
HTMLElementTypeId::HTMLButtonElement,
)) |
NodeTypeId::Element(ElementTypeId::HTMLElement(
HTMLElementTypeId::HTMLInputElement,
)) |
NodeTypeId::Element(ElementTypeId::HTMLElement(
HTMLElementTypeId::HTMLSelectElement,
)) |
NodeTypeId::Element(ElementTypeId::HTMLElement(
HTMLElementTypeId::HTMLTextAreaElement,
)) => true,
_ => false,
})
});
if disabled_state {
for field in fields {
let el = field.downcast::<Element>().unwrap();
el.set_disabled_state(true);
el.set_enabled_state(false);
}
} else {
for field in fields {
let el = field.downcast::<Element>().unwrap();
el.check_disabled_attribute();
el.check_ancestors_disabled_state_for_form_control();
}
}
},
&local_name!("form") => {
self.form_attribute_mutated(mutation);
},
_ => {},
}
}
}
impl FormControl for HTMLFieldSetElement {
fn form_owner(&self) -> Option<DomRoot<HTMLFormElement>> {
self.form_owner.get()
}
fn set_form_owner(&self, form: Option<&HTMLFormElement>) {
self.form_owner.set(form);
}
fn to_element<'a>(&'a self) -> &'a Element {
self.upcast::<Element>()
}
}
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