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Auto merge of #8959 - nox:domtokenlist-stringifier, r=Ms2ger

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Fix DOMStringMap's stringifier behaviour according to the spec

It should just return its associated attribute's value, if any.

https://github.com/whatwg/dom/issues/105

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This commit is contained in:
bors-servo 2015-12-19 00:51:17 +05:30
commit 21277b1fa0
3 changed files with 15 additions and 14 deletions
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7
components/script/dom/domtokenlist.rs
View file

@ -12,7 +12,7 @@ use dom::bindings::reflector::{Reflector, reflect_dom_object};
use dom::element::Element;
use dom::node::window_from_node;
use string_cache::Atom;
use util::str::{DOMString, HTML_SPACE_CHARACTERS, str_join};
use util::str::{DOMString, HTML_SPACE_CHARACTERS};
#[dom_struct]
pub struct DOMTokenList {
@ -129,10 +129,9 @@ impl DOMTokenListMethods for DOMTokenList {
}
}
// https://dom.spec.whatwg.org/#stringification-behavior
// https://dom.spec.whatwg.org/#concept-dtl-serialize
fn Stringifier(&self) -> DOMString {
let tokenlist = self.element.get_tokenlist_attribute(&self.local_name);
DOMString::from(str_join(&tokenlist, "\x20"))
self.element.get_string_attribute(&self.local_name)
}
// check-tidy: no specs after this line

16
tests/wpt/web-platform-tests/dom/lists/DOMTokenList-stringifier.html
View file

@ -6,18 +6,20 @@
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<div id=log></div>
<span class=" a a b"></span>
<span class=" a a b "></span>
<script>
test(function() {
assert_equals(String(document.createElement("span").classList), "",
"String(classList) should return the empty list for an undefined class attribute");
var span = document.querySelector("span");
assert_equals(span.getAttribute("class"), " a a b",
assert_equals(span.getAttribute("class"), " a a b ",
"getAttribute should return the literal value");
assert_equals(span.className, " a a b",
assert_equals(span.className, " a a b ",
"className should return the literal value");
assert_equals(String(span.classList), "a b",
"String(classList) should compress whitespace");
assert_equals(span.classList.toString(), "a b",
"classList.toString() should compress whitespace");
assert_equals(String(span.classList), " a a b ",
"String(classList) should return the literal value");
assert_equals(span.classList.toString(), " a a b ",
"classList.toString() should return the literal value");
assert_class_string(span.classList, "DOMTokenList");
});
</script>

6
tests/wpt/web-platform-tests/dom/nodes/Element-classlist.html
View file

@ -62,9 +62,9 @@ test(function () {
assert_equals( elem.className, ' ' );
}, 'className should contain initial markup whitespace');
test(function () {
assert_equals( elem.classList + '', '', 'implicit' );
assert_equals( elem.classList.toString(), '', 'explicit' );
}, 'empty classList should return the empty string since the ordered set parser skip the whitespaces');
assert_equals( elem.classList + '', ' ', 'implicit' );
assert_equals( elem.classList.toString(), ' ', 'explicit' );
}, 'classList should contain initial markup whitespace');
test(function () {
assert_throws( 'SYNTAX_ERR', function () { elem.classList.contains(''); } );
}, '.contains(empty_string) must throw a SYNTAX_ERR');