Fix #13539: Utilize Sizzle hooks. Close gh-1215.

(cherry picked from commit 4ef516903e6e48bce388ca47c1ed88a447199fa1)

8 files changed, 133 insertions, 105 deletions

diff --git a/Gruntfile.js b/Gruntfile.js
index 2317544ad..809ea3552 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -41,6 +41,7 @@ module.exports = function( grunt ) {
 				src: [
 					"src/intro.js",
 					"src/core.js",
+					{ flag: "sizzle", src: "src/selector-sizzle.js", alt: "src/selector-native.js" },
 					"src/callbacks.js",
 					"src/deferred.js",
 					"src/support.js",
@@ -48,7 +49,6 @@ module.exports = function( grunt ) {
 					"src/queue.js",
 					"src/attributes.js",
 					"src/event.js",
-					{ flag: "sizzle", src: "src/selector-sizzle.js", alt: "src/selector-native.js" },
 					"src/traversing.js",
 					"src/manipulation.js",
 					{ flag: "css", src: "src/css.js" },
diff --git a/src/attributes.js b/src/attributes.js
index f116f8396..57257eba3 100644
--- a/src/attributes.js
+++ b/src/attributes.js
@@ -2,8 +2,7 @@ var nodeHook, boolHook,
 	rclass = /[\t\r\n]/g,
 	rreturn = /\r/g,
 	rfocusable = /^(?:input|select|textarea|button|object)$/i,
-	rclickable = /^(?:a|area)$/i,
-	rboolean = /^(?:checked|selected|autofocus|autoplay|async|controls|defer|disabled|hidden|loop|multiple|open|readonly|required|scoped)$/i;
+	rclickable = /^(?:a|area)$/i;
 
 jQuery.fn.extend({
 	attr: function( name, value ) {
@@ -291,7 +290,7 @@ jQuery.extend({
 	},
 
 	attr: function( elem, name, value ) {
-		var ret, hooks, notxml,
+		var hooks, ret,
 			nType = elem.nodeType;
 
 		// don't get/set attributes on text, comment and attribute nodes
@@ -304,13 +303,12 @@ jQuery.extend({
 			return jQuery.prop( elem, name, value );
 		}
 
-		notxml = nType !== 1 || !jQuery.isXMLDoc( elem );
-
 		// All attributes are lowercase
 		// Grab necessary hook if one is defined
-		if ( notxml ) {
+		if ( nType !== 1 || !jQuery.isXMLDoc( elem ) ) {
 			name = name.toLowerCase();
-			hooks = jQuery.attrHooks[ name ] || ( rboolean.test( name ) ? boolHook : nodeHook );
+			hooks = jQuery.attrHooks[ name ] ||
+				( jQuery.expr.match.boolean.test( name ) ? boolHook : nodeHook );
 		}
 
 		if ( value !== undefined ) {
@@ -318,7 +316,7 @@ jQuery.extend({
 			if ( value === null ) {
 				jQuery.removeAttr( elem, name );
 
-			} else if ( hooks && notxml && "set" in hooks && (ret = hooks.set( elem, value, name )) !== undefined ) {
+			} else if ( hooks && "set" in hooks && (ret = hooks.set( elem, value, name )) !== undefined ) {
 				return ret;
 
 			} else {
@@ -326,16 +324,11 @@ jQuery.extend({
 				return value;
 			}
 
-		} else if ( hooks && notxml && "get" in hooks && (ret = hooks.get( elem, name )) !== null ) {
+		} else if ( hooks && "get" in hooks && (ret = hooks.get( elem, name )) !== null ) {
 			return ret;
 
 		} else {
-
-			// In IE9+, Flash objects don't have .getAttribute (#12945)
-			// Support: IE9+
-			if ( typeof elem.getAttribute !== core_strundefined ) {
-				ret =  elem.getAttribute( name );
-			}
+			ret = jQuery.find.attr( elem, name );
 
 			// Non-existent attributes return null, we normalize to undefined
 			return ret == null ?
@@ -354,8 +347,8 @@ jQuery.extend({
 				propName = jQuery.propFix[ name ] || name;
 
 				// Boolean attributes get special treatment (#10870)
-				// Set corresponding property to false for boolean attributes
-				if ( rboolean.test( name ) ) {
+				if ( jQuery.expr.match.boolean.test( name ) ) {
+					// Set corresponding property to false
 					elem[ propName ] = false;
 				}
 
@@ -382,18 +375,8 @@ jQuery.extend({
 	},
 
 	propFix: {
-		tabindex: "tabIndex",
-		readonly: "readOnly",
 		"for": "htmlFor",
-		"class": "className",
-		maxlength: "maxLength",
-		cellspacing: "cellSpacing",
-		cellpadding: "cellPadding",
-		rowspan: "rowSpan",
-		colspan: "colSpan",
-		usemap: "useMap",
-		frameborder: "frameBorder",
-		contenteditable: "contentEditable"
+		"class": "className"
 	},
 
 	prop: function( elem, name, value ) {
@@ -448,13 +431,8 @@ jQuery.extend({
 	}
 });
 
-// Hook for boolean attributes
+// Hooks for boolean attributes
 boolHook = {
-	get: function( elem, name ) {
-		return elem.getAttribute( name ) !== null ?
-			name.toLowerCase() :
-			undefined;
-	},
 	set: function( elem, value, name ) {
 		if ( value === false ) {
 			// Remove boolean attributes when set to false
@@ -465,32 +443,32 @@ boolHook = {
 		return name;
 	}
 };
+jQuery.each( jQuery.expr.match.boolean.source.match( /\w+/g ), function( i, name ) {
+	var getter = jQuery.expr.attrHandle[ name ] || jQuery.find.attr;
 
-// Radios and checkboxes getter/setter
-if ( !jQuery.support.checkOn ) {
-	jQuery.each([ "radio", "checkbox" ], function() {
-		jQuery.valHooks[ this ] = {
-			get: function( elem ) {
-				// Handle the case where in Webkit "" is returned instead of "on" if a value isn't specified
-				return elem.getAttribute("value") === null ? "on" : elem.value;
-			}
-		};
-	});
-}
-jQuery.each([ "radio", "checkbox" ], function() {
-	jQuery.valHooks[ this ] = jQuery.extend( jQuery.valHooks[ this ], {
-		set: function( elem, value ) {
-			if ( jQuery.isArray( value ) ) {
-				return ( elem.checked = jQuery.inArray( jQuery(elem).val(), value ) >= 0 );
-			}
-		}
-	});
+	jQuery.expr.attrHandle[ name ] = function( elem, name, isXML ) {
+		var fn = jQuery.expr.attrHandle[ name ],
+			ret = isXML ?
+				undefined :
+				/* jshint eqeqeq: false */
+				// Temporarily disable this handler to check existence
+				(jQuery.expr.attrHandle[ name ] = undefined) !=
+					getter( elem, name, isXML ) ?
+
+					name.toLowerCase() :
+					null;
+
+		// Restore handler
+		jQuery.expr.attrHandle[ name ] = fn;
+
+		return ret;
+	};
 });
 
-// IE9/10 do not see a selected option inside an optgroup unless you access it
-// Support: IE9, IE10
+// Support: IE9+
+// Selectedness for an option in an optgroup can be inaccurate
 if ( !jQuery.support.optSelected ) {
-	jQuery.propHooks.selected = jQuery.extend( jQuery.propHooks.selected, {
+	jQuery.propHooks.selected = {
 		get: function( elem ) {
 			var parent = elem.parentNode;
 			if ( parent && parent.parentNode ) {
@@ -498,5 +476,38 @@ if ( !jQuery.support.optSelected ) {
 			}
 			return null;
 		}
-	});
+	};
 }
+
+jQuery.each([
+	"tabIndex",
+	"readOnly",
+	"maxLength",
+	"cellSpacing",
+	"cellPadding",
+	"rowSpan",
+	"colSpan",
+	"useMap",
+	"frameBorder",
+	"contentEditable"
+], function() {
+	jQuery.propFix[ this.toLowerCase() ] = this;
+});
+
+// Radios and checkboxes getter/setter
+jQuery.each([ "radio", "checkbox" ], function() {
+	jQuery.valHooks[ this ] = {
+		set: function( elem, value ) {
+			if ( jQuery.isArray( value ) ) {
+				return ( elem.checked = jQuery.inArray( jQuery(elem).val(), value ) >= 0 );
+			}
+		}
+	};
+	if ( !jQuery.support.checkOn ) {
+		jQuery.valHooks[ this ].get = function( elem ) {
+			// Support: Webkit
+			// "" is returned instead of "on" if a value isn't specified
+			return elem.getAttribute("value") === null ? "on" : elem.value;
+		};
+	}
+});
diff --git a/src/sizzle b/src/sizzle
-Subproject a9ab22e770ab94c4c8b426e2f46f6ab91a19639
+Subproject cf19fa8dd6b7fda254bb3434f63d590845eaa7b
diff --git a/src/sizzle-jquery.js b/src/sizzle-jquery.js
index 2370b4493..fa3196543 100644
--- a/src/sizzle-jquery.js
+++ b/src/sizzle-jquery.js
@@ -1,5 +1,3 @@
-// Override sizzle attribute retrieval
-Sizzle.attr = jQuery.attr;
 jQuery.find = Sizzle;
 jQuery.expr = Sizzle.selectors;
 jQuery.expr[":"] = jQuery.expr.pseudos;
diff --git a/src/traversing.js b/src/traversing.js
index 81c1e5b57..a063a4612 100644
--- a/src/traversing.js
+++ b/src/traversing.js
@@ -1,6 +1,4 @@
-var runtil = /Until$/,
-	rparentsprev = /^(?:parents|prev(?:Until|All))/,
-	isSimple = /^.[^:#\[\.,]*$/,
+var isSimple = /^.[^:#\[\.,]*$/,
 	rneedsContext = jQuery.expr.match.needsContext,
 	// methods guaranteed to produce a unique set when starting from a unique set
 	guaranteedUnique = {
@@ -52,11 +50,11 @@ jQuery.fn.extend({
 	},
 
 	not: function( selector ) {
-		return this.pushStack( winnow(this, selector, false) );
+		return this.pushStack( winnow(this, selector || [], true) );
 	},
 
 	filter: function( selector ) {
-		return this.pushStack( winnow(this, selector, true) );
+		return this.pushStack( winnow(this, selector || [], false) );
 	},
 
 	is: function( selector ) {
@@ -186,7 +184,7 @@ jQuery.each({
 	jQuery.fn[ name ] = function( until, selector ) {
 		var matched = jQuery.map( this, fn, until );
 
-		if ( !runtil.test( name ) ) {
+		if ( name.slice( -5 ) !== "Until" ) {
 			selector = until;
 		}
 
@@ -195,11 +193,13 @@ jQuery.each({
 		}
 
 		if ( this.length > 1 ) {
+			// Remove duplicates
 			if ( !guaranteedUnique[ name ] ) {
 				jQuery.unique( matched );
 			}
 
-			if ( rparentsprev.test( name ) ) {
+			// Reverse order for parents* and prev*
+			if ( name[ 0 ] === "p" ) {
 				matched.reverse();
 			}
 		}
@@ -210,13 +210,17 @@ jQuery.each({
 
 jQuery.extend({
 	filter: function( expr, elems, not ) {
+		var elem = elems[ 0 ];
+
 		if ( not ) {
 			expr = ":not(" + expr + ")";
 		}
 
-		return elems.length === 1 ?
-			jQuery.find.matchesSelector( elems[ 0 ], expr ) ? [ elems[ 0 ] ] : [] :
-			jQuery.find.matches( expr, elems );
+		return elems.length === 1 && elem.nodeType === 1 ?
+			jQuery.find.matchesSelector( elem, expr ) ? [ elem ] : [] :
+			jQuery.find.matches( expr, jQuery.grep( elems, function( elem ) {
+				return elem.nodeType === 1;
+			}));
 	},
 
 	dir: function( elem, dir, until ) {
@@ -248,40 +252,31 @@ jQuery.extend({
 });
 
 // Implement the identical functionality for filter and not
-function winnow( elements, qualifier, keep ) {
-
-	// Can't pass null or undefined to indexOf
-	// Set to 0 to skip string check
-	qualifier = qualifier || 0;
-
-	var filtered;
-
+function winnow( elements, qualifier, not ) {
 	if ( jQuery.isFunction( qualifier ) ) {
-		return jQuery.grep(elements, function( elem, i ) {
-			var retVal = !!qualifier.call( elem, i, elem );
-			return retVal === keep;
+		return jQuery.grep( elements, function( elem, i ) {
+			/* jshint -W018 */
+			return !!qualifier.call( elem, i, elem ) !== not;
 		});
+
 	}
 
 	if ( qualifier.nodeType ) {
-		return jQuery.grep(elements, function( elem ) {
-			return ( elem === qualifier ) === keep;
+		return jQuery.grep( elements, function( elem ) {
+			return ( elem === qualifier ) !== not;
 		});
+
 	}
 
 	if ( typeof qualifier === "string" ) {
-		filtered = jQuery.grep(elements, function( elem ) {
-			return elem.nodeType === 1;
-		});
-
 		if ( isSimple.test( qualifier ) ) {
-			return jQuery.filter( qualifier, filtered, !keep );
+			return jQuery.filter( qualifier, elements, not );
 		}
 
-		qualifier = jQuery.filter( qualifier, filtered );
+		qualifier = jQuery.filter( qualifier, elements );
 	}
 
-	return jQuery.grep(elements, function( elem ) {
-		return ( core_indexOf.call( qualifier, elem ) >= 0 ) === keep;
+	return jQuery.grep( elements, function( elem ) {
+		return ( core_indexOf.call( qualifier, elem ) >= 0 ) !== not;
 	});
 }
diff --git a/test/unit/css.js b/test/unit/css.js
index e8ce75b02..dc851f745 100644
--- a/test/unit/css.js
+++ b/test/unit/css.js
@@ -864,8 +864,8 @@ test( ":visible/:hidden selectors", function() {
 	ok( !jQuery("#nothiddendiv").is(":visible"), "Modified CSS display: Assert element is hidden" );
 	jQuery("#nothiddendiv").css({"display": "block"});
 	ok( jQuery("#nothiddendiv").is(":visible"), "Modified CSS display: Assert element is visible");
-	ok( jQuery(window).is(":visible"), "Calling is(':visible') on window does not throw an error in IE.");
-	ok( jQuery(document).is(":visible"), "Calling is(':visible') on document does not throw an error in IE.");
+	ok( jQuery(window).is(":visible") || true, "Calling is(':visible') on window does not throw an exception (#10267)");
+	ok( jQuery(document).is(":visible") || true, "Calling is(':visible') on document does not throw an exception (#10267)");
 
 	ok( jQuery("#nothiddendiv").is(":visible"), "Modifying CSS display: Assert element is visible");
 	jQuery("#nothiddendiv").css("display", "none");
diff --git a/test/unit/selector.js b/test/unit/selector.js
index 0cfba2834..440e7167b 100644
--- a/test/unit/selector.js
+++ b/test/unit/selector.js
@@ -31,17 +31,10 @@ test("class - jQuery only", function() {
 });
 
 test("attributes - jQuery only", function() {
-	expect( 6 );
+	expect( 5 );
 
 	t( "Find elements with a tabindex attribute", "[tabindex]", ["listWithTabIndex", "foodWithNegativeTabIndex", "linkWithTabIndex", "linkWithNegativeTabIndex", "linkWithNoHrefWithTabIndex", "linkWithNoHrefWithNegativeTabIndex"] );
 
-	// #12523
-	deepEqual(
-		jQuery.find( "[title]", null, null, jQuery("#qunit-fixture a").get().concat( document.createTextNode("") ) ),
-		q("google"),
-		"Text nodes fail attribute tests without exception"
-	);
-
 	// #12600
 	ok(
 		jQuery("<select value='12600'><option value='option' selected='selected'></option><option value=''></option></select>")
diff --git a/test/unit/traversing.js b/test/unit/traversing.js
index 0e6439300..1060e7e40 100644
--- a/test/unit/traversing.js
+++ b/test/unit/traversing.js
@@ -78,10 +78,29 @@ test("is(String|undefined)", function() {
 	ok( jQuery("#en").is("[lang=\"de\"] , [lang=\"en\"]"), "Comma-separated; Check for lang attribute: Expect en or de" );
 });
 
-test("is() against window|document (#10178)", function() {
-	expect(2);
-	ok( !jQuery(window).is("a"), "Checking is on a window does not throw an exception" );
-	ok( !jQuery(document).is("a"), "Checking is on a document does not throw an exception" );
+test("is() against non-elements (#10178)", function() {
+	expect(14);
+
+	var label, i, test,
+		collection = jQuery( document ),
+		tests = [ "a", "*" ],
+		nonelements = {
+			text: document.createTextNode(""),
+			comment: document.createComment(""),
+			document: document,
+			window: window,
+			array: [],
+			"plain object": {},
+			"function": function() {}
+		};
+
+	for ( label in nonelements ) {
+		collection[ 0 ] = nonelements[ label ];
+		for ( i = 0; i < tests.length; i++ ) {
+			test = tests[ i ];
+			ok( !collection.is( test ), label + " does not match \"" + test + "\"" );
+		}
+	}
 });
 
 test("is(jQuery)", function() {
@@ -716,3 +735,15 @@ test("index(no arg) #10977", function() {
 
 	equal( jQuery( div ).index(), 0, "If jQuery#index called on element whose parent is fragment, it still should work correctly" );
 });
+
+test("traversing non-elements with attribute filters (#12523)", function() {
+	expect(5);
+
+	var nonnodes = jQuery("#nonnodes").contents();
+
+	equal( nonnodes.filter("[id]").length, 1, ".filter" );
+	equal( nonnodes.find("[id]").length, 0, ".find" );
+	strictEqual( nonnodes.is("[id]"), true, ".is" );
+	deepEqual( nonnodes.closest("[id='nonnodes']").get(), q("nonnodes"), ".closest" );
+	deepEqual( nonnodes.parents("[id='nonnodes']").get(), q("nonnodes"), ".parents" );
+});