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Auto merge of #9632 - peterjoel:issue_1716, r=KiChjang

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Addresses Issue #1716. Indicated part of the document.

Fixes #1716.

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This commit is contained in:
bors-servo 2016-02-17 15:23:21 +05:30
commit 8d63eff463
11 changed files with 424 additions and 12 deletions
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45
components/script/dom/document.rs
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@ -107,6 +107,7 @@ use style::context::ReflowGoal;
use style::restyle_hints::ElementSnapshot;
use style::servo::Stylesheet;
use time;
use url::percent_encoding::percent_decode;
use url::{Host, Url};
use util::str::{DOMString, split_html_space_chars, str_join};
@ -515,18 +516,38 @@ impl Document {
/// Attempt to find a named element in this page's document.
/// https://html.spec.whatwg.org/multipage/#the-indicated-part-of-the-document
pub fn find_fragment_node(&self, fragid: &str) -> Option<Root<Element>> {
self.get_element_by_id(&Atom::from(fragid)).or_else(|| {
let check_anchor = |node: &HTMLAnchorElement| {
let elem = node.upcast::<Element>();
elem.get_attribute(&ns!(), &atom!("name"))
.map_or(false, |attr| &**attr.value() == fragid)
};
let doc_node = self.upcast::<Node>();
doc_node.traverse_preorder()
.filter_map(Root::downcast)
.find(|node| check_anchor(&node))
.map(Root::upcast)
})
// Step 1 is not handled here; the fragid is already obtained by the calling function
// Step 2
if fragid.is_empty() {
self.GetDocumentElement()
} else {
// Step 3 & 4
String::from_utf8(percent_decode(fragid.as_bytes())).ok()
// Step 5
.and_then(|decoded_fragid| self.get_element_by_id(&Atom::from(&*decoded_fragid)))
// Step 6
.or_else(|| self.get_anchor_by_name(fragid))
// Step 7
.or_else(|| if fragid.to_lowercase() == "top" {
self.GetDocumentElement()
} else {
// Step 8
None
})
}
}
fn get_anchor_by_name(&self, name: &str) -> Option<Root<Element>> {
let check_anchor = |node: &HTMLAnchorElement| {
let elem = node.upcast::<Element>();
elem.get_attribute(&ns!(), &atom!("name"))
.map_or(false, |attr| &**attr.value() == name)
};
let doc_node = self.upcast::<Node>();
doc_node.traverse_preorder()
.filter_map(Root::downcast)
.find(|node| check_anchor(&node))
.map(Root::upcast)
}
pub fn hit_test(&self, page_point: &Point2D<f32>) -> Option<UntrustedNodeAddress> {