mirror of
https://github.com/servo/servo.git
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210 lines
7.6 KiB
Rust
210 lines
7.6 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::activation::Activatable;
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use dom::attr::AttrValue;
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use dom::bindings::codegen::Bindings::AttrBinding::AttrMethods;
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use dom::bindings::codegen::Bindings::HTMLAnchorElementBinding;
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use dom::bindings::codegen::Bindings::HTMLAnchorElementBinding::HTMLAnchorElementMethods;
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use dom::bindings::codegen::Bindings::MouseEventBinding::MouseEventMethods;
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use dom::bindings::codegen::Bindings::NodeBinding::NodeMethods;
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use dom::bindings::codegen::InheritTypes::{ElementCast, HTMLElementCast};
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use dom::bindings::codegen::InheritTypes::{HTMLAnchorElementDerived, HTMLImageElementDerived};
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use dom::bindings::codegen::InheritTypes::{MouseEventCast, NodeCast};
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use dom::bindings::js::{JS, MutNullableHeap, Root};
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use dom::document::Document;
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use dom::domtokenlist::DOMTokenList;
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use dom::element::{Element, ElementTypeId};
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use dom::event::Event;
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use dom::eventtarget::{EventTarget, EventTargetTypeId};
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use dom::htmlelement::{HTMLElement, HTMLElementTypeId};
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use dom::node::{Node, NodeTypeId, document_from_node, window_from_node};
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use dom::virtualmethods::VirtualMethods;
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use num::ToPrimitive;
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use std::default::Default;
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use string_cache::Atom;
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use url::UrlParser;
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use util::str::DOMString;
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#[dom_struct]
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pub struct HTMLAnchorElement {
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htmlelement: HTMLElement,
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rel_list: MutNullableHeap<JS<DOMTokenList>>,
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}
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impl HTMLAnchorElementDerived for EventTarget {
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fn is_htmlanchorelement(&self) -> bool {
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*self.type_id() ==
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EventTargetTypeId::Node(
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NodeTypeId::Element(ElementTypeId::HTMLElement(HTMLElementTypeId::HTMLAnchorElement)))
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}
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}
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impl HTMLAnchorElement {
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fn new_inherited(localName: DOMString,
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prefix: Option<DOMString>,
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document: &Document) -> HTMLAnchorElement {
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HTMLAnchorElement {
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htmlelement:
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HTMLElement::new_inherited(HTMLElementTypeId::HTMLAnchorElement, localName, prefix, document),
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rel_list: 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,
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prefix: Option<DOMString>,
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document: &Document) -> Root<HTMLAnchorElement> {
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let element = HTMLAnchorElement::new_inherited(localName, prefix, document);
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Node::reflect_node(box element, document, HTMLAnchorElementBinding::Wrap)
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}
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}
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impl VirtualMethods for HTMLAnchorElement {
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fn super_type<'b>(&'b self) -> Option<&'b VirtualMethods> {
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let htmlelement: &HTMLElement = HTMLElementCast::from_ref(self);
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Some(htmlelement as &VirtualMethods)
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}
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fn parse_plain_attribute(&self, name: &Atom, value: DOMString) -> AttrValue {
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match name {
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&atom!("rel") => AttrValue::from_serialized_tokenlist(value),
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_ => self.super_type().unwrap().parse_plain_attribute(name, value),
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}
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}
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}
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impl HTMLAnchorElementMethods for HTMLAnchorElement {
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// https://html.spec.whatwg.org/multipage/#dom-a-text
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fn Text(&self) -> DOMString {
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let node = NodeCast::from_ref(self);
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node.GetTextContent().unwrap()
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}
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// https://html.spec.whatwg.org/multipage/#dom-a-text
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fn SetText(&self, value: DOMString) {
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let node = NodeCast::from_ref(self);
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node.SetTextContent(Some(value))
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}
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// https://html.spec.whatwg.org/multipage/#dom-a-rellist
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fn RelList(&self) -> Root<DOMTokenList> {
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self.rel_list.or_init(|| {
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DOMTokenList::new(ElementCast::from_ref(self), &atom!("rel"))
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})
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}
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// https://html.spec.whatwg.org/multipage/#dom-a-coords
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make_getter!(Coords);
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// https://html.spec.whatwg.org/multipage/#dom-a-coords
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make_setter!(SetCoords, "coords");
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// https://html.spec.whatwg.org/multipage/#dom-a-name
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make_getter!(Name);
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// https://html.spec.whatwg.org/multipage/#dom-a-name
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make_setter!(SetName, "name");
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// https://html.spec.whatwg.org/multipage/#dom-a-rev
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make_getter!(Rev);
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// https://html.spec.whatwg.org/multipage/#dom-a-rev
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make_setter!(SetRev, "rev");
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// https://html.spec.whatwg.org/multipage/#dom-a-shape
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make_getter!(Shape);
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// https://html.spec.whatwg.org/multipage/#dom-a-shape
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make_setter!(SetShape, "shape");
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}
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impl Activatable for HTMLAnchorElement {
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fn as_element<'b>(&'b self) -> &'b Element {
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ElementCast::from_ref(self)
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}
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fn is_instance_activatable(&self) -> bool {
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// https://html.spec.whatwg.org/multipage/#hyperlink
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// "a [...] element[s] with an href attribute [...] must [..] create a
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// hyperlink"
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// https://html.spec.whatwg.org/multipage/#the-a-element
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// "The activation behaviour of a elements *that create hyperlinks*"
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ElementCast::from_ref(self).has_attribute(&atom!("href"))
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}
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//TODO:https://html.spec.whatwg.org/multipage/#the-a-element
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fn pre_click_activation(&self) {
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}
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//TODO:https://html.spec.whatwg.org/multipage/#the-a-element
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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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}
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//https://html.spec.whatwg.org/multipage/#the-a-element:activation-behaviour
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fn activation_behavior(&self, event: &Event, target: &EventTarget) {
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//Step 1. If the node document is not fully active, abort.
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let doc = document_from_node(self);
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if !doc.r().is_fully_active() {
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return;
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}
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//TODO: Step 2. Check if browsing context is specified and act accordingly.
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//Step 3. Handle <img ismap/>.
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let element = ElementCast::from_ref(self);
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let mouse_event = MouseEventCast::to_ref(event).unwrap();
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let mut ismap_suffix = None;
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if let Some(element) = ElementCast::to_ref(target) {
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if target.is_htmlimageelement() && element.has_attribute(&atom!("ismap")) {
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let target_node = NodeCast::from_ref(element);
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let rect = window_from_node(target_node).r().content_box_query(
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target_node.to_trusted_node_address());
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ismap_suffix = Some(
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format!("?{},{}", mouse_event.ClientX().to_f32().unwrap() - rect.origin.x.to_f32_px(),
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mouse_event.ClientY().to_f32().unwrap() - rect.origin.y.to_f32_px())
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)
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}
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}
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// Step 4.
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//TODO: Download the link is `download` attribute is set.
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follow_hyperlink(element, ismap_suffix);
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}
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//TODO:https://html.spec.whatwg.org/multipage/#the-a-element
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fn implicit_submission(&self, _ctrlKey: bool, _shiftKey: bool, _altKey: bool, _metaKey: bool) {
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}
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}
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/// https://html.spec.whatwg.org/multipage/#following-hyperlinks-2
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fn follow_hyperlink(subject: &Element, hyperlink_suffix: Option<DOMString>) {
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// Step 1: replace.
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// Step 2: source browsing context.
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// Step 3: target browsing context.
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// Step 4.
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let attribute = subject.get_attribute(&ns!(""), &atom!("href")).unwrap();
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let mut href = attribute.Value();
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// Step 6.
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// https://www.w3.org/Bugs/Public/show_bug.cgi?id=28925
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if let Some(suffix) = hyperlink_suffix {
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href.push_str(&suffix);
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}
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// Step 4-5.
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let document = document_from_node(subject);
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let url = match UrlParser::new().base_url(&document.url()).parse(&href) {
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Ok(url) => url,
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Err(_) => return,
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};
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// Step 7.
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debug!("following hyperlink to {}", url.serialize());
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let window = document.window();
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window.load_url(url);
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}
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