mirror of
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404 lines
14 KiB
Rust
404 lines
14 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::attr::AttrHelpers;
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use dom::attr::AttrValue;
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use dom::bindings::codegen::Bindings::EventHandlerBinding::EventHandlerNonNull;
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use dom::bindings::codegen::Bindings::HTMLElementBinding;
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use dom::bindings::codegen::Bindings::HTMLElementBinding::HTMLElementMethods;
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use dom::bindings::codegen::Bindings::HTMLInputElementBinding::HTMLInputElementMethods;
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use dom::bindings::codegen::Bindings::WindowBinding::WindowMethods;
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use dom::bindings::codegen::InheritTypes::{ElementCast, HTMLFrameSetElementDerived};
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use dom::bindings::codegen::InheritTypes::{EventTargetCast, HTMLInputElementCast, NodeCast};
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use dom::bindings::codegen::InheritTypes::{HTMLElementDerived, HTMLBodyElementDerived};
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use dom::bindings::js::{JS, MutNullableHeap, Root};
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use dom::bindings::error::ErrorResult;
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use dom::bindings::error::Error::Syntax;
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use dom::bindings::utils::Reflectable;
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use dom::cssstyledeclaration::{CSSStyleDeclaration, CSSModificationAccess};
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use dom::document::{Document, DocumentHelpers};
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use dom::domstringmap::DOMStringMap;
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use dom::element::{Element, ElementTypeId, ActivationElementHelpers, AttributeHandlers};
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use dom::eventtarget::{EventTarget, EventTargetHelpers, EventTargetTypeId};
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use dom::htmlinputelement::HTMLInputElement;
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use dom::htmlmediaelement::HTMLMediaElementTypeId;
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use dom::htmltablecellelement::HTMLTableCellElementTypeId;
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use dom::node::{Node, NodeHelpers, NodeTypeId, document_from_node, window_from_node, SEQUENTIALLY_FOCUSABLE};
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use dom::virtualmethods::VirtualMethods;
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use dom::window::WindowHelpers;
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use msg::constellation_msg::FocusType;
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use util::str::DOMString;
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use string_cache::Atom;
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use std::borrow::ToOwned;
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use std::default::Default;
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use std::intrinsics;
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use std::rc::Rc;
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#[dom_struct]
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pub struct HTMLElement {
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element: Element,
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style_decl: MutNullableHeap<JS<CSSStyleDeclaration>>,
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dataset: MutNullableHeap<JS<DOMStringMap>>,
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}
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impl PartialEq for HTMLElement {
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fn eq(&self, other: &HTMLElement) -> bool {
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self as *const HTMLElement == &*other
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}
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}
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impl HTMLElementDerived for EventTarget {
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fn is_htmlelement(&self) -> bool {
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match *self.type_id() {
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EventTargetTypeId::Node(NodeTypeId::Element(ElementTypeId::HTMLElement(_))) => true,
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_ => false
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}
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}
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}
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impl HTMLElement {
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pub fn new_inherited(type_id: HTMLElementTypeId,
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tag_name: DOMString,
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prefix: Option<DOMString>,
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document: &Document) -> HTMLElement {
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HTMLElement {
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element:
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Element::new_inherited(ElementTypeId::HTMLElement(type_id), tag_name, ns!(HTML), prefix, document),
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style_decl: Default::default(),
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dataset: 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(localName: DOMString, prefix: Option<DOMString>, document: &Document) -> Root<HTMLElement> {
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let element = HTMLElement::new_inherited(HTMLElementTypeId::HTMLElement, localName, prefix, document);
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Node::reflect_node(box element, document, HTMLElementBinding::Wrap)
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}
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}
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trait PrivateHTMLElementHelpers {
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fn is_body_or_frameset(self) -> bool;
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fn update_sequentially_focusable_status(self);
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}
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impl<'a> PrivateHTMLElementHelpers for &'a HTMLElement {
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fn is_body_or_frameset(self) -> bool {
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let eventtarget = EventTargetCast::from_ref(self);
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eventtarget.is_htmlbodyelement() || eventtarget.is_htmlframesetelement()
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}
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fn update_sequentially_focusable_status(self) {
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let element = ElementCast::from_ref(self);
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let node = NodeCast::from_ref(self);
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if element.has_attribute(&atom!("tabindex")) {
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node.set_flag(SEQUENTIALLY_FOCUSABLE, true);
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} else {
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match node.type_id() {
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NodeTypeId::Element(ElementTypeId::HTMLElement(HTMLElementTypeId::HTMLButtonElement)) |
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NodeTypeId::Element(ElementTypeId::HTMLElement(HTMLElementTypeId::HTMLSelectElement)) |
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NodeTypeId::Element(ElementTypeId::HTMLElement(HTMLElementTypeId::HTMLIFrameElement)) |
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NodeTypeId::Element(ElementTypeId::HTMLElement(HTMLElementTypeId::HTMLTextAreaElement))
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=> node.set_flag(SEQUENTIALLY_FOCUSABLE, true),
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NodeTypeId::Element(ElementTypeId::HTMLElement(HTMLElementTypeId::HTMLLinkElement)) |
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NodeTypeId::Element(ElementTypeId::HTMLElement(HTMLElementTypeId::HTMLAnchorElement)) => {
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if element.has_attribute(&atom!("href")) {
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node.set_flag(SEQUENTIALLY_FOCUSABLE, true);
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}
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},
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_ => {
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if let Some(attr) = element.get_attribute(&ns!(""), &atom!("draggable")) {
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let attr = attr.r();
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let value = attr.value();
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let is_true = match *value {
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AttrValue::String(ref string) => string == "true",
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_ => false,
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};
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node.set_flag(SEQUENTIALLY_FOCUSABLE, is_true);
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} else {
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node.set_flag(SEQUENTIALLY_FOCUSABLE, false);
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}
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//TODO set SEQUENTIALLY_FOCUSABLE flag if editing host
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//TODO set SEQUENTIALLY_FOCUSABLE flag if "sorting interface th elements"
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},
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}
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}
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}
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}
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impl<'a> HTMLElementMethods for &'a HTMLElement {
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fn Style(self) -> Root<CSSStyleDeclaration> {
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self.style_decl.or_init(|| {
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let global = window_from_node(self);
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CSSStyleDeclaration::new(global.r(), self, CSSModificationAccess::ReadWrite)
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})
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}
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make_getter!(Title);
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make_setter!(SetTitle, "title");
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make_getter!(Lang);
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make_setter!(SetLang, "lang");
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// https://html.spec.whatwg.org/multipage/#dom-hidden
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make_bool_getter!(Hidden);
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make_bool_setter!(SetHidden, "hidden");
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global_event_handlers!(NoOnload);
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// https://html.spec.whatwg.org/multipage/#dom-dataset
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fn Dataset(self) -> Root<DOMStringMap> {
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self.dataset.or_init(|| DOMStringMap::new(self))
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}
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fn GetOnload(self) -> Option<Rc<EventHandlerNonNull>> {
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if self.is_body_or_frameset() {
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let win = window_from_node(self);
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win.r().GetOnload()
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} else {
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let target = EventTargetCast::from_ref(self);
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target.get_event_handler_common("load")
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}
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}
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fn SetOnload(self, listener: Option<Rc<EventHandlerNonNull>>) {
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if self.is_body_or_frameset() {
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let win = window_from_node(self);
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win.r().SetOnload(listener)
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} else {
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let target = EventTargetCast::from_ref(self);
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target.set_event_handler_common("load", listener)
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}
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}
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// https://html.spec.whatwg.org/multipage/#dom-click
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fn Click(self) {
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let maybe_input: Option<&HTMLInputElement> = HTMLInputElementCast::to_ref(self);
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if let Some(i) = maybe_input {
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if i.Disabled() {
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return;
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}
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}
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let element = ElementCast::from_ref(self);
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// https://www.w3.org/Bugs/Public/show_bug.cgi?id=27430 ?
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element.as_maybe_activatable().map(|a| a.synthetic_click_activation(false, false, false, false));
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}
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// https://html.spec.whatwg.org/multipage/#dom-focus
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fn Focus(self) {
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// TODO: Mark the element as locked for focus and run the focusing steps.
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// https://html.spec.whatwg.org/multipage/#focusing-steps
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let element = ElementCast::from_ref(self);
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let document = document_from_node(self);
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let document = document.r();
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document.begin_focus_transaction();
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document.request_focus(element);
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document.commit_focus_transaction(FocusType::Element);
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}
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// https://html.spec.whatwg.org/multipage/#dom-blur
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fn Blur(self) {
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// TODO: Run the unfocusing steps.
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let node = NodeCast::from_ref(self);
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if !node.get_focus_state() {
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return;
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}
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// https://html.spec.whatwg.org/multipage/#unfocusing-steps
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let document = document_from_node(self);
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document.r().begin_focus_transaction();
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// If `request_focus` is not called, focus will be set to None.
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document.r().commit_focus_transaction(FocusType::Element);
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}
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}
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// https://html.spec.whatwg.org/#attr-data-*
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pub trait HTMLElementCustomAttributeHelpers {
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fn set_custom_attr(self, name: DOMString, value: DOMString) -> ErrorResult;
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fn get_custom_attr(self, name: DOMString) -> Option<DOMString>;
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fn delete_custom_attr(self, name: DOMString);
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}
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fn to_snake_case(name: DOMString) -> DOMString {
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let mut attr_name = "data-".to_owned();
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for ch in name.chars() {
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if ch.is_uppercase() {
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attr_name.push('\x2d');
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attr_name.extend(ch.to_lowercase());
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} else {
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attr_name.push(ch);
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}
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}
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attr_name
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}
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impl<'a> HTMLElementCustomAttributeHelpers for &'a HTMLElement {
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fn set_custom_attr(self, name: DOMString, value: DOMString) -> ErrorResult {
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if name.chars()
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.skip_while(|&ch| ch != '\u{2d}')
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.nth(1).map_or(false, |ch| ch >= 'a' && ch <= 'z') {
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return Err(Syntax);
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}
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let element = ElementCast::from_ref(self);
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element.set_custom_attribute(to_snake_case(name), value)
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}
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fn get_custom_attr(self, local_name: DOMString) -> Option<DOMString> {
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let element = ElementCast::from_ref(self);
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let local_name = Atom::from_slice(&to_snake_case(local_name));
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element.get_attribute(&ns!(""), &local_name).map(|attr| {
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// FIXME(https://github.com/rust-lang/rust/issues/23338)
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let attr = attr.r();
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let value = attr.value();
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(**value).to_owned()
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})
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}
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fn delete_custom_attr(self, local_name: DOMString) {
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let element = ElementCast::from_ref(self);
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let local_name = Atom::from_slice(&to_snake_case(local_name));
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element.remove_attribute(&ns!(""), &local_name);
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}
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}
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impl<'a> VirtualMethods for &'a HTMLElement {
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fn super_type<'b>(&'b self) -> Option<&'b VirtualMethods> {
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let element: &&Element = ElementCast::from_borrowed_ref(self);
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Some(element as &VirtualMethods)
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}
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fn before_remove_attr(&self, attr: &Attr) {
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if let Some(ref s) = self.super_type() {
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s.before_remove_attr(attr);
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}
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}
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fn after_remove_attr(&self, name: &Atom) {
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if let Some(ref s) = self.super_type() {
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s.after_remove_attr(name);
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}
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self.update_sequentially_focusable_status();
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}
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fn after_set_attr(&self, attr: &Attr) {
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if let Some(ref s) = self.super_type() {
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s.after_set_attr(attr);
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}
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let name = attr.local_name();
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if name.starts_with("on") {
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let window = window_from_node(*self);
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let (cx, url, reflector) = (window.r().get_cx(),
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window.r().get_url(),
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window.r().reflector().get_jsobject());
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let evtarget = EventTargetCast::from_ref(*self);
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evtarget.set_event_handler_uncompiled(cx, url, reflector,
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&name[2..],
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(**attr.value()).to_owned());
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}
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self.update_sequentially_focusable_status();
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}
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fn bind_to_tree(&self, tree_in_doc: bool) {
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if let Some(ref s) = self.super_type() {
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s.bind_to_tree(tree_in_doc);
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}
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self.update_sequentially_focusable_status();
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}
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}
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#[derive(Copy, Clone, Debug)]
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#[jstraceable]
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pub enum HTMLElementTypeId {
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HTMLElement,
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HTMLAnchorElement,
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HTMLAppletElement,
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HTMLAreaElement,
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HTMLBaseElement,
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HTMLBRElement,
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HTMLBodyElement,
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HTMLButtonElement,
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HTMLCanvasElement,
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HTMLDataElement,
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HTMLDataListElement,
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HTMLDialogElement,
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HTMLDirectoryElement,
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HTMLDListElement,
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HTMLDivElement,
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HTMLEmbedElement,
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HTMLFieldSetElement,
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HTMLFontElement,
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HTMLFormElement,
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HTMLFrameElement,
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HTMLFrameSetElement,
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HTMLHRElement,
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HTMLHeadElement,
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HTMLHeadingElement,
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HTMLHtmlElement,
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HTMLIFrameElement,
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HTMLImageElement,
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HTMLInputElement,
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HTMLLabelElement,
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HTMLLegendElement,
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HTMLLinkElement,
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HTMLLIElement,
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HTMLMapElement,
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HTMLMediaElement(HTMLMediaElementTypeId),
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HTMLMetaElement,
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HTMLMeterElement,
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HTMLModElement,
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HTMLObjectElement,
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HTMLOListElement,
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HTMLOptGroupElement,
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HTMLOptionElement,
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HTMLOutputElement,
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HTMLParagraphElement,
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HTMLParamElement,
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HTMLPreElement,
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HTMLProgressElement,
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HTMLQuoteElement,
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HTMLScriptElement,
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HTMLSelectElement,
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HTMLSourceElement,
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HTMLSpanElement,
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HTMLStyleElement,
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HTMLTableElement,
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HTMLTableCaptionElement,
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HTMLTableCellElement(HTMLTableCellElementTypeId),
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HTMLTableColElement,
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HTMLTableRowElement,
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HTMLTableSectionElement,
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HTMLTemplateElement,
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HTMLTextAreaElement,
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HTMLTimeElement,
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HTMLTitleElement,
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HTMLTrackElement,
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HTMLUListElement,
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HTMLUnknownElement,
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}
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impl PartialEq for HTMLElementTypeId {
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#[inline]
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#[allow(unsafe_code)]
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fn eq(&self, other: &HTMLElementTypeId) -> bool {
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match (*self, *other) {
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(HTMLElementTypeId::HTMLMediaElement(this_type),
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HTMLElementTypeId::HTMLMediaElement(other_type)) => {
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this_type == other_type
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}
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(HTMLElementTypeId::HTMLTableCellElement(this_type),
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HTMLElementTypeId::HTMLTableCellElement(other_type)) => {
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this_type == other_type
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}
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(_, _) => {
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unsafe {
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intrinsics::discriminant_value(self) == intrinsics::discriminant_value(other)
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}
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}
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}
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}
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}
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