Refactored before/after/replaceWith to not pushStack. Fixes #12664, closes gh-987

src/manipulation.js

@@ -160,29 +160,19 @@ jQuery.fn.extend({
 	},
 
 	before: function() {
-		if ( !isDisconnected( this[0] ) ) {
-			return this.domManip(arguments, false, function( elem ) {
+		return this.domManip( arguments, false, function( elem ) {
+			if ( !isDisconnected( this ) ) {
 				this.parentNode.insertBefore( elem, this );
-			});
-		}
-
-		if ( arguments.length ) {
-			var set = jQuery.clean( arguments );
-			return this.pushStack( jQuery.merge( set, this ), "before", this.selector );
-		}
+			}
+		});
 	},
 
 	after: function() {
-		if ( !isDisconnected( this[0] ) ) {
-			return this.domManip(arguments, false, function( elem ) {
+		return this.domManip( arguments, false, function( elem ) {
+			if ( !isDisconnected( this ) ) {
 				this.parentNode.insertBefore( elem, this.nextSibling );
-			});
-		}
-
-		if ( arguments.length ) {
-			var set = jQuery.clean( arguments );
-			return this.pushStack( jQuery.merge( this, set ), "after", this.selector );
-		}
+			}
+		});
 	},
 
 	// keepData is for internal use only--do not document
@@ -277,40 +267,41 @@ jQuery.fn.extend({
 	},
 
 	replaceWith: function( value ) {
-		if ( !isDisconnected( this[0] ) ) {
-			// Make sure that the elements are removed from the DOM before they are inserted
-			// this can help fix replacing a parent with child elements
-			if ( jQuery.isFunction( value ) ) {
-				return this.each(function( index ) {
-					// HTML argument replaced by "this" element
-					// 1. There were no supporting tests
-					// 2. There was no internal code relying on this
-					// 3. There was no documentation of an html argument
-					jQuery( this ).replaceWith( value.call( this, index, this ) );
-				});
-			}
+		var self = this,
+			isFunc = jQuery.isFunction( value );
 
-			if ( typeof value !== "string" ) {
-				value = jQuery( value ).detach();
-			}
+		// Make sure that the elements are removed from the DOM before they are inserted
+		// this can help fix replacing a parent with child elements
+		if ( !isFunc && typeof value !== "string" ) {
+			value = jQuery( value ).detach();
+		}
 
-			return this.each(function() {
-				var next = this.nextSibling,
-					parent = this.parentNode;
+		this.each( function( i ) {
+			var next = this.nextSibling,
+				parent = this.parentNode,
+				// HTML argument replaced by "this" element
+				// 1. There were no supporting tests
+				// 2. There was no internal code relying on this
+				// 3. There was no documentation of an html argument
+				val = !isFunc ? value : value.call( this, i, this );
+
+			if ( isDisconnected( this ) ) {
+				// for disconnected elements, we replace with the new content in the set. We use
+				// clone here to ensure that each replaced instance is unique
+				self[ i ] = jQuery( val ).clone()[ 0 ];
+				return;
+			}
 
-				jQuery( this ).remove();
+			jQuery( this ).remove();
 
-				if ( next ) {
-					jQuery(next).before( value );
-				} else {
-					jQuery(parent).append( value );
-				}
-			});
-		}
+			if ( next ) {
+				jQuery( next ).before( val );
+			} else {
+				jQuery( parent ).append( val );
+			}
+		});
 
-		return this.length ?
-			this.pushStack( jQuery(jQuery.isFunction(value) ? value() : value), "replaceWith", value ) :
-			this;
+		return this;
 	},
 
 	detach: function( selector ) {

test/unit/manipulation.js

@@ -929,8 +929,8 @@ var testBefore = function(val) {
 	equal( jQuery("#en").text(), expected, "Insert array of jQuery objects before" );
 
 	var set = jQuery("<div/>").before("<span>test</span>");
-	equal( set[0].nodeName.toLowerCase(), "span", "Insert the element before the disconnected node." );
-	equal( set.length, 2, "Insert the element before the disconnected node." );
+	equal( set[0].nodeName.toLowerCase(), "div", "Insert before a disconnected node should be a no-op" );
+	equal( set.length, 1, "Insert the element before the disconnected node. should be a no-op" );
 };
 
 test("before(String|Element|Array&lt;Element&gt;|jQuery)", function() {
@@ -942,18 +942,35 @@ test("before(Function)", function() {
 });
 
 test("before and after w/ empty object (#10812)", function() {
-	expect(2);
+	expect(1);
 
 	var res = jQuery( "#notInTheDocument" ).before( "(" ).after( ")" );
-	equal( res.length, 2, "didn't choke on empty object" );
-	equal( res.wrapAll("<div/>").parent().text(), "()", "correctly appended text" );
+	equal( res.length, 0, "didn't choke on empty object" );
 });
 
 test("before and after on disconnected node (#10517)", function() {
-	expect(2);
+	expect(6);
+	var expectedBefore = "This is a normal link: bugaYahoo",
+		expectedAfter = "This is a normal link: Yahoobuga";
+
+	equal( jQuery("<input type='checkbox'/>").before("<div/>").length, 1, "before() on disconnected node is no-op" );
+	equal( jQuery("<input type='checkbox'/>").after("<div/>").length, 1, "after() on disconnected node is no-op" );
+
+	QUnit.reset();
+	jQuery("#yahoo").add("<span/>").before("<b>buga</b>");
+	equal( jQuery("#en").text(), expectedBefore, "Insert String before with disconnected node last" );
+
+	QUnit.reset();
+	jQuery("<span/>").add("#yahoo").before("<b>buga</b>");
+	equal( jQuery("#en").text(), expectedBefore, "Insert String before with disconnected node first" );
+
+	QUnit.reset();
+	jQuery("#yahoo").add("<span/>").after("<b>buga</b>");
+	equal( jQuery("#en").text(), expectedAfter, "Insert String after with disconnected node last" );
 
-	equal( jQuery("<input type='checkbox'/>").before("<div/>").length, 2, "before() returned all elements" );
-	equal( jQuery("<input type='checkbox'/>").after("<div/>").length, 2, "after() returned all elements" );
+	QUnit.reset();
+	jQuery("<span/>").add("#yahoo").after("<b>buga</b>");
+	equal( jQuery("#en").text(), expectedAfter, "Insert String after with disconnected node first" );
 });
 
 test("insertBefore(String|Element|Array&lt;Element&gt;|jQuery)", function() {
@@ -1004,9 +1021,9 @@ var testAfter = function(val) {
 	jQuery("#yahoo").after( val( [ jQuery("#first"), jQuery("#mark, #google") ] ) );
 	equal( jQuery("#en").text(), expected, "Insert array of jQuery objects after" );
 
-	var set = jQuery("<div/>").after("<span>test</span>");
-	equal( set[1].nodeName.toLowerCase(), "span", "Insert the element after the disconnected node." );
-	equal( set.length, 2, "Insert the element after the disconnected node." );
+	var set = jQuery("<div/>").before("<span>test</span>");
+	equal( set[0].nodeName.toLowerCase(), "div", "Insert after a disconnected node should be a no-op" );
+	equal( set.length, 1, "Insert the element after the disconnected node should be a no-op" );
 };
 
 test("after(String|Element|Array&lt;Element&gt;|jQuery)", function() {
@@ -1155,6 +1172,41 @@ test("replaceWith(string) for more than one element", function(){
 	equal(jQuery("#foo p").length, 0, "verify that all the three original element have been replaced");
 });
 
+test("replaceWith(string) for collection with disconnected element", function(){
+	expect(18);
+
+	var elem = jQuery("<div />"),
+		testSet, newSet;
+
+	QUnit.reset();
+	testSet = jQuery("#foo p").add(elem);
+	equal(testSet.length, 4, "ensuring that test data has not changed");
+
+	newSet = testSet.replaceWith("<span>bar</span>");
+	equal(testSet.length, 4, "ensure that we still have the same number of elements");
+	equal(jQuery("#foo span").length, 3, "verify that all the three original elements have been replaced");
+	equal(jQuery("#foo p").length, 0, "verify that all the three original elements have been replaced");
+	equal(testSet.filter("p").length, 3, "ensure we still have the original set of attached elements");
+	equal(testSet.filter("div").length, 0, "ensure the detached element is not in the original set");
+	equal(newSet.filter("p").length, 3, "ensure we still have the original set of attached elements in new set");
+	equal(newSet.filter("div").length, 0, "ensure the detached element has been replaced in the new set");
+	equal(newSet.filter("span").length, 1, "ensure the new element is in the new set");
+
+	QUnit.reset();
+	testSet = elem.add(jQuery("#foo p"));
+	equal(testSet.length, 4, "ensuring that test data has not changed");
+
+	testSet.replaceWith("<span>bar</span>");
+	equal(testSet.length, 4, "ensure that we still have the same number of elements");
+	equal(jQuery("#foo span").length, 3, "verify that all the three original elements have been replaced");
+	equal(jQuery("#foo p").length, 0, "verify that all the three original elements have been replaced");
+	equal(testSet.filter("p").length, 3, "ensure we still have the original set of attached elements");
+	equal(testSet.filter("div").length, 0, "ensure the detached element is not in the original set");
+	equal(newSet.filter("p").length, 3, "ensure we still have the original set of attached elements in new set");
+	equal(newSet.filter("div").length, 0, "ensure the detached element has been replaced in the new set");
+	equal(newSet.filter("span").length, 1, "ensure the new element is in the new set");
+});
+
 test("replaceAll(String|Element|Array&lt;Element&gt;|jQuery)", function() {
 	expect(10);
 	jQuery("<b id='replace'>buga</b>").replaceAll("#yahoo");