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Added support for the new .closest() method (very useful for event delegation).

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This commit is contained in:
John Resig 2008-12-22 00:52:53 +00:00
parent c9dd5d9972
commit 6b09032864
2 changed files with 19 additions and 0 deletions
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11
src/core.js
View File

@ -338,6 +338,17 @@ jQuery.fn = jQuery.prototype = {
}) ), "filter", selector ); }) ), "filter", selector );
}, },
closest: function( selector ) {
return this.map(function(){
var cur = this;
while ( cur && cur.ownerDocument ) {
if ( jQuery(cur).is(selector) )
return cur;
cur = cur.parentNode;
}
});
},
not: function( selector ) { not: function( selector ) {
if ( typeof selector === "string" ) if ( typeof selector === "string" )
// test special case where just one selector is passed in // test special case where just one selector is passed in

8
test/unit/core.js
View File

@ -1309,6 +1309,14 @@ test("filter()", function() {
equals( j.filter("[name]").length, 0, "Check node,textnode,comment to filter the one span" ); equals( j.filter("[name]").length, 0, "Check node,textnode,comment to filter the one span" );
}); });
test("closest()", function() {
expect(4);
isSet( jQuery("body").closest("body").get(), q("body"), "closest(body)" );
isSet( jQuery("body").closest("html").get(), q("html"), "closest(html)" );
isSet( jQuery("body").closest("div").get(), [], "closest(div)" );
isSet( jQuery("#main").closest("span,#html").get(), q("html"), "closest(span,#html)" );
});
test("not()", function() { test("not()", function() {
expect(8); expect(8);
equals( jQuery("#main > p#ap > a").not("#google").length, 2, "not('selector')" ); equals( jQuery("#main > p#ap > a").not("#google").length, 2, "not('selector')" );