forked from mirrors/gecko-dev
c2d666ebcc
Takes care of #12436. --- <!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `__` with appropriate data: --> - [X] `./mach build -d` does not report any errors - [X] `./mach test-tidy` does not report any errors - [X] These changes fix #12436. <!-- Either: --> - [X] These changes do not require tests because the changes do not affect any functionality. <!-- Pull requests that do not address these steps are welcome, but they will require additional verification as part of the review process. --> Source-Repo: https://github.com/servo/servo Source-Revision: f3f134707506c311ad89deb8f9177c05f59bd483
93 lines
3.5 KiB
Rust
93 lines
3.5 KiB
Rust
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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use dom::attr::Attr;
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use dom::bindings::codegen::Bindings::HTMLOptGroupElementBinding;
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use dom::bindings::codegen::Bindings::HTMLOptGroupElementBinding::HTMLOptGroupElementMethods;
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use dom::bindings::inheritance::Castable;
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use dom::bindings::js::Root;
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use dom::bindings::str::DOMString;
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use dom::document::Document;
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use dom::element::{AttributeMutation, Element};
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use dom::htmlelement::HTMLElement;
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use dom::htmloptionelement::HTMLOptionElement;
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use dom::node::Node;
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use dom::virtualmethods::VirtualMethods;
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use string_cache::Atom;
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use style::element_state::*;
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#[dom_struct]
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pub struct HTMLOptGroupElement {
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htmlelement: HTMLElement
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}
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impl HTMLOptGroupElement {
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fn new_inherited(localName: Atom,
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prefix: Option<DOMString>,
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document: &Document) -> HTMLOptGroupElement {
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HTMLOptGroupElement {
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htmlelement:
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HTMLElement::new_inherited_with_state(IN_ENABLED_STATE,
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localName, prefix, document)
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}
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}
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#[allow(unrooted_must_root)]
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pub fn new(localName: Atom,
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prefix: Option<DOMString>,
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document: &Document) -> Root<HTMLOptGroupElement> {
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Node::reflect_node(box HTMLOptGroupElement::new_inherited(localName, prefix, document),
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document,
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HTMLOptGroupElementBinding::Wrap)
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}
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}
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impl HTMLOptGroupElementMethods for HTMLOptGroupElement {
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// https://html.spec.whatwg.org/multipage/#dom-optgroup-disabled
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make_bool_getter!(Disabled, "disabled");
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// https://html.spec.whatwg.org/multipage/#dom-optgroup-disabled
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make_bool_setter!(SetDisabled, "disabled");
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}
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impl VirtualMethods for HTMLOptGroupElement {
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fn super_type(&self) -> Option<&VirtualMethods> {
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Some(self.upcast::<HTMLElement>() as &VirtualMethods)
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}
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fn attribute_mutated(&self, attr: &Attr, mutation: AttributeMutation) {
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self.super_type().unwrap().attribute_mutated(attr, mutation);
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match attr.local_name() {
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&atom!("disabled") => {
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let disabled_state = match mutation {
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AttributeMutation::Set(None) => true,
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AttributeMutation::Set(Some(_)) => {
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// Option group was already disabled.
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return;
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},
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AttributeMutation::Removed => false,
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};
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let el = self.upcast::<Element>();
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el.set_disabled_state(disabled_state);
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el.set_enabled_state(!disabled_state);
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let options = el.upcast::<Node>().children().filter(|child| {
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child.is::<HTMLOptionElement>()
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}).map(|child| Root::from_ref(child.downcast::<HTMLOptionElement>().unwrap()));
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if disabled_state {
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for option in options {
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let el = option.upcast::<Element>();
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el.set_disabled_state(true);
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el.set_enabled_state(false);
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}
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} else {
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for option in options {
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let el = option.upcast::<Element>();
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el.check_disabled_attribute();
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}
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}
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},
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_ => {},
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}
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}
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}
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