Mirrors/servo
1
0
Fork 0
mirror of https://github.com/servo/servo.git synced 2025-08-05 21:50:18 +01:00
Code Issues Projects Releases Packages Wiki Activity

Implemented get element target and get element noopener algorithms

Browse source 
and refactored into functions.
This commit is contained in:
Arjun Ramachandrula 2020-07-15 00:15:16 -04:00
parent 8d9615fa41
commit 2d5c30d042
11 changed files with 90 additions and 62 deletions
Download patch file Download diff file Expand all files Collapse all files

72
components/script/dom/htmlanchorelement.rs
View file

@ -18,7 +18,9 @@ use crate::dom::element::{referrer_policy_for_element, Element};
use crate::dom::event::Event;
use crate::dom::eventtarget::EventTarget;
use crate::dom::globalscope::GlobalScope;
use crate::dom::htmlareaelement::HTMLAreaElement;
use crate::dom::htmlelement::HTMLElement;
use crate::dom::htmlformelement::HTMLFormElement;
use crate::dom::htmlimageelement::HTMLImageElement;
use crate::dom::mouseevent::MouseEvent;
use crate::dom::node::{document_from_node, Node};
@ -566,6 +568,52 @@ impl Activatable for HTMLAnchorElement {
}
}
/// <https://html.spec.whatwg.org/multipage/#get-an-element's-target>
pub fn get_element_target(subject: &Element) -> Option<DOMString> {
if !(subject.is::<HTMLAreaElement>() ||
subject.is::<HTMLAnchorElement>() ||
subject.is::<HTMLFormElement>())
{
return None;
}
if subject.has_attribute(&local_name!("target")) {
return Some(subject.get_string_attribute(&local_name!("target")));
}
let doc = document_from_node(subject).base_element();
match doc {
Some(doc) => {
let element = doc.upcast::<Element>();
if element.has_attribute(&local_name!("target")) {
return Some(element.get_string_attribute(&local_name!("target")));
} else {
return None;
}
},
None => return None,
};
}
/// < https://html.spec.whatwg.org/multipage/#get-an-element's-noopener>
pub fn get_element_noopener(subject: &Element, target_attribute_value: Option<DOMString>) -> bool {
if !(subject.is::<HTMLAreaElement>() ||
subject.is::<HTMLAnchorElement>() ||
subject.is::<HTMLFormElement>())
{
return false;
}
let target_is_blank = target_attribute_value
.as_ref()
.map_or(false, |target| target.to_lowercase() == "_blank");
let link_types = match subject.get_attribute(&ns!(), &local_name!("rel")) {
Some(rel) => rel.Value(),
None => return target_is_blank,
};
return link_types.contains("noreferrer") ||
link_types.contains("noopener") ||
(!link_types.contains("opener") && target_is_blank);
}
/// <https://html.spec.whatwg.org/multipage/#following-hyperlinks-2>
pub fn follow_hyperlink(subject: &Element, hyperlink_suffix: Option<String>) {
// Step 1.
@ -581,29 +629,19 @@ pub fn follow_hyperlink(subject: &Element, hyperlink_suffix: Option<String>) {
let source = document.browsing_context().unwrap();
// Step 4-5: target attribute.
let target_attribute_value = subject.get_attribute(&ns!(), &local_name!("target"));
// Step 6.
let noopener = if let Some(link_types) = subject.get_attribute(&ns!(), &local_name!("rel")) {
let values = link_types.Value();
let contains_noopener = values.contains("noopener");
let contains_noreferrer = values.contains("noreferrer");
let contains_opener = values.contains("opener");
let target_is_blank = if let Some(name) = target_attribute_value.as_ref() {
name.Value().to_lowercase() == "_blank"
let target_attribute_value =
if subject.is::<HTMLAreaElement>() || subject.is::<HTMLAnchorElement>() {
get_element_target(subject)
} else {
false
None
};
contains_noreferrer || contains_noopener || (!contains_opener && target_is_blank)
} else {
false
};
// Step 6.
let noopener = get_element_noopener(subject, target_attribute_value.clone());
// Step 7.
let (maybe_chosen, replace) = match target_attribute_value {
Some(name) => {
let (maybe_chosen, new) = source.choose_browsing_context(name.Value(), noopener);
let (maybe_chosen, new) = source.choose_browsing_context(name, noopener);
let replace = if new {
HistoryEntryReplacement::Enabled
} else {