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

diff --git a/src/core.js b/src/core.js
index 7ddb2c5..ff8114b 100644 (file)
--- a/src/core.js
+++ b/src/core.js
@@ -338,6 +338,17 @@ jQuery.fn = jQuery.prototype = {
                        }) ), "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 ) {
                if ( typeof selector === "string" )
                        // test special case where just one selector is passed in

diff --git a/test/unit/core.js b/test/unit/core.js
index 536e58c..1ae2dfa 100644 (file)
--- a/test/unit/core.js
+++ b/test/unit/core.js
@@ -1309,6 +1309,14 @@ test("filter()", function() {
        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() {
        expect(8);
        equals( jQuery("#main > p#ap > a").not("#google").length, 2, "not('selector')" );