servo/components/script/dom/htmllabelelement.rs
Rebecca d6678a184b Call synthetic_click_activation for all clicks
Moved synthetic_click_actiavtion out of Activatable trait so it can be
called by all elements (not just activatable). Calls appropriately
from click. Also updates the isdisabled check in click to check for all
types of elements
2016-03-10 14:43:33 -05:00

138 lines
4.8 KiB
Rust

/* 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 http://mozilla.org/MPL/2.0/. */
use dom::activation::{Activatable, ActivationSource, synthetic_click_activation};
use dom::attr::AttrValue;
use dom::bindings::codegen::Bindings::HTMLLabelElementBinding;
use dom::bindings::codegen::Bindings::HTMLLabelElementBinding::HTMLLabelElementMethods;
use dom::bindings::inheritance::Castable;
use dom::bindings::js::Root;
use dom::document::Document;
use dom::element::Element;
use dom::event::Event;
use dom::eventtarget::EventTarget;
use dom::htmlelement::HTMLElement;
use dom::htmlformelement::{FormControl, HTMLFormElement};
use dom::node::{document_from_node, Node};
use dom::virtualmethods::VirtualMethods;
use string_cache::Atom;
use util::str::DOMString;
#[dom_struct]
pub struct HTMLLabelElement {
htmlelement: HTMLElement,
}
impl HTMLLabelElement {
fn new_inherited(localName: Atom,
prefix: Option<DOMString>,
document: &Document) -> HTMLLabelElement {
HTMLLabelElement {
htmlelement:
HTMLElement::new_inherited(localName, prefix, document)
}
}
#[allow(unrooted_must_root)]
pub fn new(localName: Atom,
prefix: Option<DOMString>,
document: &Document) -> Root<HTMLLabelElement> {
let element = HTMLLabelElement::new_inherited(localName, prefix, document);
Node::reflect_node(box element, document, HTMLLabelElementBinding::Wrap)
}
}
impl Activatable for HTMLLabelElement {
fn as_element(&self) -> &Element {
self.upcast::<Element>()
}
fn is_instance_activatable(&self) -> bool {
true
}
// https://html.spec.whatwg.org/multipage/#run-pre-click-activation-steps
// https://html.spec.whatwg.org/multipage/#the-button-element:activation-behavior
fn pre_click_activation(&self) {
}
// https://html.spec.whatwg.org/multipage/#run-canceled-activation-steps
fn canceled_activation(&self) {
}
// https://html.spec.whatwg.org/multipage/#run-post-click-activation-steps
fn activation_behavior(&self, _event: &Event, _target: &EventTarget) {
synthetic_click_activation(self.upcast::<Element>(),
false,
false,
false,
false,
ActivationSource::NotFromClick);
}
// https://html.spec.whatwg.org/multipage/#implicit-submission
fn implicit_submission(&self, _ctrlKey: bool, _shiftKey: bool, _altKey: bool, _metaKey: bool) {
//FIXME: Investigate and implement implicit submission for label elements
// Issue filed at https://github.com/servo/servo/issues/8263
}
}
impl HTMLLabelElementMethods for HTMLLabelElement {
// https://html.spec.whatwg.org/multipage/#dom-fae-form
fn GetForm(&self) -> Option<Root<HTMLFormElement>> {
self.form_owner()
}
// https://html.spec.whatwg.org/multipage/#dom-label-htmlfor
make_getter!(HtmlFor, "for");
// https://html.spec.whatwg.org/multipage/#dom-label-htmlfor
make_atomic_setter!(SetHtmlFor, "for");
// https://html.spec.whatwg.org/multipage/#dom-label-control
fn GetControl(&self) -> Option<Root<HTMLElement>> {
if !self.upcast::<Node>().is_in_doc() {
return None;
}
let for_attr = match self.upcast::<Element>().get_attribute(&ns!(), &atom!("for")) {
Some(for_attr) => for_attr,
None => return self.first_labelable_descendant(),
};
let for_value = for_attr.value();
document_from_node(self).get_element_by_id(for_value.as_atom())
.and_then(Root::downcast::<HTMLElement>)
.into_iter()
.filter(|e| e.is_labelable_element())
.next()
}
}
impl VirtualMethods for HTMLLabelElement {
fn super_type(&self) -> Option<&VirtualMethods> {
Some(self.upcast::<HTMLElement>() as &VirtualMethods)
}
fn parse_plain_attribute(&self, name: &Atom, value: DOMString) -> AttrValue {
match name {
&atom!("for") => AttrValue::from_atomic(value),
_ => self.super_type().unwrap().parse_plain_attribute(name, value),
}
}
}
impl HTMLLabelElement {
pub fn first_labelable_descendant(&self) -> Option<Root<HTMLElement>> {
self.upcast::<Node>()
.traverse_preorder()
.filter_map(Root::downcast::<HTMLElement>)
.filter(|elem| elem.is_labelable_element())
.next()
}
}
impl FormControl for HTMLLabelElement {}