mirror of
https://github.com/servo/servo.git
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325 lines
11 KiB
Rust
Executable file
325 lines
11 KiB
Rust
Executable file
/* 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 https://mozilla.org/MPL/2.0/. */
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use crate::dom::activation::Activatable;
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use crate::dom::attr::Attr;
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use crate::dom::bindings::codegen::Bindings::HTMLButtonElementBinding;
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use crate::dom::bindings::codegen::Bindings::HTMLButtonElementBinding::HTMLButtonElementMethods;
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use crate::dom::bindings::inheritance::Castable;
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use crate::dom::bindings::root::{DomRoot, MutNullableDom};
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use crate::dom::bindings::str::DOMString;
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use crate::dom::document::Document;
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use crate::dom::element::{AttributeMutation, Element};
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use crate::dom::event::Event;
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use crate::dom::eventtarget::EventTarget;
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use crate::dom::htmlelement::HTMLElement;
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use crate::dom::htmlfieldsetelement::HTMLFieldSetElement;
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use crate::dom::htmlformelement::HTMLFormElement;
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use crate::dom::htmlformelement::{FormControl, FormDatum, FormDatumValue};
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use crate::dom::htmlformelement::{FormSubmitter, ResetFrom, SubmittedFrom};
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use crate::dom::node::{window_from_node, BindContext, Node, UnbindContext};
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use crate::dom::nodelist::NodeList;
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use crate::dom::validation::Validatable;
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use crate::dom::validitystate::{ValidationFlags, ValidityState};
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use crate::dom::virtualmethods::VirtualMethods;
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use dom_struct::dom_struct;
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use html5ever::{LocalName, Prefix};
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use std::cell::Cell;
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use std::default::Default;
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use style::element_state::ElementState;
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#[derive(Clone, Copy, JSTraceable, MallocSizeOf, PartialEq)]
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enum ButtonType {
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Submit,
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Reset,
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Button,
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Menu,
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}
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#[dom_struct]
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pub struct HTMLButtonElement {
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htmlelement: HTMLElement,
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button_type: Cell<ButtonType>,
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form_owner: MutNullableDom<HTMLFormElement>,
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}
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impl HTMLButtonElement {
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fn new_inherited(
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local_name: LocalName,
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prefix: Option<Prefix>,
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document: &Document,
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) -> HTMLButtonElement {
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HTMLButtonElement {
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htmlelement: HTMLElement::new_inherited_with_state(
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ElementState::IN_ENABLED_STATE,
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local_name,
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prefix,
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document,
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),
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button_type: Cell::new(ButtonType::Submit),
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form_owner: Default::default(),
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}
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}
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#[allow(unrooted_must_root)]
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pub fn new(
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local_name: LocalName,
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prefix: Option<Prefix>,
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document: &Document,
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) -> DomRoot<HTMLButtonElement> {
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Node::reflect_node(
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Box::new(HTMLButtonElement::new_inherited(
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local_name, prefix, document,
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)),
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document,
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HTMLButtonElementBinding::Wrap,
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)
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}
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}
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impl HTMLButtonElementMethods for HTMLButtonElement {
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// https://html.spec.whatwg.org/multipage/#dom-cva-validity
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fn Validity(&self) -> DomRoot<ValidityState> {
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let window = window_from_node(self);
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ValidityState::new(&window, self.upcast())
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}
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// https://html.spec.whatwg.org/multipage/#dom-fe-disabled
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make_bool_getter!(Disabled, "disabled");
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// https://html.spec.whatwg.org/multipage/#dom-fe-disabled
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make_bool_setter!(SetDisabled, "disabled");
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// https://html.spec.whatwg.org/multipage/#dom-fae-form
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fn GetForm(&self) -> Option<DomRoot<HTMLFormElement>> {
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self.form_owner()
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}
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// https://html.spec.whatwg.org/multipage/#dom-button-type
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make_enumerated_getter!(Type, "type", "submit", "reset" | "button" | "menu");
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// https://html.spec.whatwg.org/multipage/#dom-button-type
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make_setter!(SetType, "type");
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// https://html.spec.whatwg.org/multipage/#dom-fs-formaction
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make_form_action_getter!(FormAction, "formaction");
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// https://html.spec.whatwg.org/multipage/#dom-fs-formaction
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make_setter!(SetFormAction, "formaction");
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// https://html.spec.whatwg.org/multipage/#dom-fs-formenctype
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make_enumerated_getter!(
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FormEnctype,
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"formenctype",
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"application/x-www-form-urlencoded",
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"text/plain" | "multipart/form-data"
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);
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// https://html.spec.whatwg.org/multipage/#dom-fs-formenctype
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make_setter!(SetFormEnctype, "formenctype");
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// https://html.spec.whatwg.org/multipage/#dom-fs-formmethod
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make_enumerated_getter!(FormMethod, "formmethod", "get", "post" | "dialog");
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// https://html.spec.whatwg.org/multipage/#dom-fs-formmethod
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make_setter!(SetFormMethod, "formmethod");
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// https://html.spec.whatwg.org/multipage/#dom-fs-formtarget
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make_getter!(FormTarget, "formtarget");
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// https://html.spec.whatwg.org/multipage/#dom-fs-formtarget
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make_setter!(SetFormTarget, "formtarget");
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// https://html.spec.whatwg.org/multipage/#attr-fs-formnovalidate
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make_bool_getter!(FormNoValidate, "formnovalidate");
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// https://html.spec.whatwg.org/multipage/#attr-fs-formnovalidate
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make_bool_setter!(SetFormNoValidate, "formnovalidate");
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// https://html.spec.whatwg.org/multipage/#dom-fe-name
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make_getter!(Name, "name");
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// https://html.spec.whatwg.org/multipage/#dom-fe-name
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make_setter!(SetName, "name");
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// https://html.spec.whatwg.org/multipage/#dom-button-value
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make_getter!(Value, "value");
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// https://html.spec.whatwg.org/multipage/#dom-button-value
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make_setter!(SetValue, "value");
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// https://html.spec.whatwg.org/multipage/#dom-lfe-labels
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fn Labels(&self) -> DomRoot<NodeList> {
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self.upcast::<HTMLElement>().labels()
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}
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}
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impl HTMLButtonElement {
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/// <https://html.spec.whatwg.org/multipage/#constructing-the-form-data-set>
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/// Steps range from 3.1 to 3.7 (specific to HTMLButtonElement)
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pub fn form_datum(&self, submitter: Option<FormSubmitter>) -> Option<FormDatum> {
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// Step 3.1: disabled state check is in get_unclean_dataset
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// Step 3.1: only run steps if this is the submitter
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if let Some(FormSubmitter::ButtonElement(submitter)) = submitter {
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if submitter != self {
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return None;
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}
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} else {
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return None;
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}
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// Step 3.2
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let ty = self.Type();
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// Step 3.4
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let name = self.Name();
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if name.is_empty() {
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// Step 3.1: Must have a name
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return None;
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}
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// Step 3.9
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Some(FormDatum {
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ty: ty,
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name: name,
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value: FormDatumValue::String(self.Value()),
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})
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}
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}
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impl VirtualMethods for HTMLButtonElement {
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fn super_type(&self) -> Option<&dyn VirtualMethods> {
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Some(self.upcast::<HTMLElement>() as &dyn 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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&local_name!("disabled") => {
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let el = self.upcast::<Element>();
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match mutation {
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AttributeMutation::Set(Some(_)) => {},
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AttributeMutation::Set(None) => {
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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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AttributeMutation::Removed => {
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el.set_disabled_state(false);
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el.set_enabled_state(true);
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el.check_ancestors_disabled_state_for_form_control();
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},
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}
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},
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&local_name!("type") => match mutation {
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AttributeMutation::Set(_) => {
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let value = match &**attr.value() {
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"reset" => ButtonType::Reset,
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"button" => ButtonType::Button,
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"menu" => ButtonType::Menu,
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_ => ButtonType::Submit,
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};
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self.button_type.set(value);
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},
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AttributeMutation::Removed => {
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self.button_type.set(ButtonType::Submit);
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},
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},
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&local_name!("form") => {
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self.form_attribute_mutated(mutation);
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},
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_ => {},
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}
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}
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fn bind_to_tree(&self, context: &BindContext) {
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if let Some(ref s) = self.super_type() {
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s.bind_to_tree(context);
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}
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self.upcast::<Element>()
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.check_ancestors_disabled_state_for_form_control();
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}
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fn unbind_from_tree(&self, context: &UnbindContext) {
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self.super_type().unwrap().unbind_from_tree(context);
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let node = self.upcast::<Node>();
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let el = self.upcast::<Element>();
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if node
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.ancestors()
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.any(|ancestor| ancestor.is::<HTMLFieldSetElement>())
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{
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el.check_ancestors_disabled_state_for_form_control();
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} else {
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el.check_disabled_attribute();
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}
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}
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}
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impl FormControl for HTMLButtonElement {
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fn form_owner(&self) -> Option<DomRoot<HTMLFormElement>> {
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self.form_owner.get()
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}
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fn set_form_owner(&self, form: Option<&HTMLFormElement>) {
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self.form_owner.set(form);
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}
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fn to_element<'a>(&'a self) -> &'a Element {
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self.upcast::<Element>()
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}
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}
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impl Validatable for HTMLButtonElement {
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fn is_instance_validatable(&self) -> bool {
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true
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}
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fn validate(&self, validate_flags: ValidationFlags) -> bool {
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if validate_flags.is_empty() {}
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// Need more flag check for different validation types later
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true
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}
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}
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impl Activatable for HTMLButtonElement {
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fn as_element(&self) -> &Element {
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self.upcast()
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}
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fn is_instance_activatable(&self) -> bool {
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//https://html.spec.whatwg.org/multipage/#the-button-element
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!self.upcast::<Element>().disabled_state()
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}
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// https://html.spec.whatwg.org/multipage/#run-pre-click-activation-steps
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// https://html.spec.whatwg.org/multipage/#the-button-element:activation-behavior
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fn pre_click_activation(&self) {}
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// https://html.spec.whatwg.org/multipage/#run-canceled-activation-steps
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fn canceled_activation(&self) {}
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// https://html.spec.whatwg.org/multipage/#run-post-click-activation-steps
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fn activation_behavior(&self, _event: &Event, _target: &EventTarget) {
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let ty = self.button_type.get();
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match ty {
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//https://html.spec.whatwg.org/multipage/#attr-button-type-submit-state
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ButtonType::Submit => {
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// TODO: is document owner fully active?
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if let Some(owner) = self.form_owner() {
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owner.submit(
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SubmittedFrom::NotFromForm,
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FormSubmitter::ButtonElement(self.clone()),
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);
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}
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},
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ButtonType::Reset => {
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// TODO: is document owner fully active?
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if let Some(owner) = self.form_owner() {
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owner.reset(ResetFrom::NotFromForm);
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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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