Draggable: allow draggable to defer destroying itself upon DOM removal until after stop is fired. Fixes #6889 - Draggable: Cursor doesn't revert to pre-dragging state after revert action when original element is removed.

tests/jquery.simulate.js

@@ -316,8 +316,12 @@ $.extend( $.simulate.prototype, {
 			this.simulateEvent( document, "mousemove", coord );
 		}
 
-		this.simulateEvent( target, "mouseup", coord );
-		this.simulateEvent( target, "click", coord );
+		if ( $.contains( document, target ) ) {
+			this.simulateEvent( target, "mouseup", coord );
+			this.simulateEvent( target, "click", coord );
+		} else {
+			this.simulateEvent( document, "mouseup", coord );
+		}
 	}
 });
 

tests/unit/draggable/draggable_core.js

@@ -75,9 +75,13 @@ test( "resizable handle with complex markup (#8756 / #8757)", function() {
 });
 
 test( "#8269: Removing draggable element on drop", function() {
-	expect( 1 );
+	expect( 2 );
 
-	var element = $( "#draggable1" ).wrap( "<div id='wrapper' />" ).draggable(),
+	var element = $( "#draggable1" ).wrap( "<div id='wrapper' />" ).draggable({
+			stop: function() {
+				ok( true, "stop still called despite element being removed from DOM on drop" );
+			}
+		}),
 		dropOffset = $( "#droppable" ).offset();
 
 	$( "#droppable" ).droppable({

tests/unit/draggable/draggable_options.js

@@ -451,6 +451,33 @@ test( "{ cursor: 'move' }", function() {
 	equal( after, before, "after drag: cursor restored" );
 });
 
+test( "#6889: Cursor doesn't revert to pre-dragging state after revert action when original element is removed", function() {
+	function getCursor() {
+		return $( "body" ).css( "cursor" );
+	}
+
+	expect( 2 );
+
+	var element = $( "#draggable1" ).wrap( "<div id='wrapper' />" ).draggable({
+			cursor: "move",
+			revert: true,
+			revertDuration: 0,
+			start: function() {
+				notEqual( getCursor(), expected, "start callback: cursor '" + expected + "'" );
+				$( "#wrapper" ).remove();
+			},
+			stop: function() {
+				equal( getCursor(), expected, "after drag: cursor restored" );
+			}
+		}),
+		expected = getCursor();
+
+	element.simulate( "drag", {
+		dx: -1,
+		dy: -1
+	});
+});
+
 test( "cursor, default, switching after initialization", function() {
 	expect( 3 );
 

ui/jquery.ui.core.js

@@ -276,10 +276,15 @@ $.ui.plugin = {
 			proto.plugins[ i ].push( [ option, set[ i ] ] );
 		}
 	},
-	call: function( instance, name, args ) {
+	call: function( instance, name, args, allowDisconnected ) {
 		var i,
 			set = instance.plugins[ name ];
-		if ( !set || !instance.element[ 0 ].parentNode || instance.element[ 0 ].parentNode.nodeType === 11 ) {
+
+		if ( !set ) {
+			return;
+		}
+
+		if ( !allowDisconnected && ( !instance.element[ 0 ].parentNode || instance.element[ 0 ].parentNode.nodeType === 11 ) ) {
 			return;
 		}
 

ui/jquery.ui.draggable.js

@@ -66,6 +66,10 @@ $.widget("ui.draggable", $.ui.mouse, {
 	},
 
 	_destroy: function() {
+		if ( ( this.helper || this.element ).is( ".ui-draggable-dragging" ) ) {
+			this.destroyOnClear = true;
+			return;
+		}
 		this.element.removeClass( "ui-draggable ui-draggable-dragging ui-draggable-disabled" );
 		this._mouseDestroy();
 	},
@@ -233,11 +237,6 @@ $.widget("ui.draggable", $.ui.mouse, {
 			this.dropped = false;
 		}
 
-		//if the original element is no longer in the DOM don't bother to continue (see #8269)
-		if ( this.options.helper === "original" && !$.contains( this.element[ 0 ].ownerDocument, this.element[ 0 ] ) ) {
-			return false;
-		}
-
 		if((this.options.revert === "invalid" && !dropped) || (this.options.revert === "valid" && dropped) || this.options.revert === true || ($.isFunction(this.options.revert) && this.options.revert.call(this.element, dropped))) {
 			$(this.helper).animate(this.originalPosition, parseInt(this.options.revertDuration, 10), function() {
 				if(that._trigger("stop", event) !== false) {
@@ -554,13 +553,16 @@ $.widget("ui.draggable", $.ui.mouse, {
 		}
 		this.helper = null;
 		this.cancelHelperRemoval = false;
+		if ( this.destroyOnClear ) {
+			this.destroy();
+		}
 	},
 
 	// From now on bulk stuff - mainly helpers
 
 	_trigger: function(type, event, ui) {
 		ui = ui || this._uiHash();
-		$.ui.plugin.call(this, type, [event, ui]);
+		$.ui.plugin.call( this, type, [ event, ui, this ], true );
 		//The absolute position has to be recalculated after plugins
 		if(type === "drag") {
 			this.positionAbs = this._convertPositionTo("absolute");
@@ -582,9 +584,9 @@ $.widget("ui.draggable", $.ui.mouse, {
 });
 
 $.ui.plugin.add("draggable", "connectToSortable", {
-	start: function(event, ui) {
+	start: function( event, ui, inst ) {
 
-		var inst = $(this).draggable( "instance" ), o = inst.options,
+		var o = inst.options,
 			uiSortable = $.extend({}, ui, { item: inst.element });
 		inst.sortables = [];
 		$(o.connectToSortable).each(function() {
@@ -600,11 +602,12 @@ $.ui.plugin.add("draggable", "connectToSortable", {
 		});
 
 	},
-	stop: function(event, ui) {
+	stop: function( event, ui, inst ) {
 
 		//If we are still over the sortable, we fake the stop event of the sortable, but also remove helper
-		var inst = $(this).draggable( "instance" ),
-			uiSortable = $.extend({}, ui, { item: inst.element });
+		var uiSortable = $.extend( {}, ui, {
+			item: inst.element
+		});
 
 		$.each(inst.sortables, function() {
 			if(this.instance.isOver) {
@@ -637,9 +640,9 @@ $.ui.plugin.add("draggable", "connectToSortable", {
 		});
 
 	},
-	drag: function(event, ui) {
+	drag: function( event, ui, inst ) {
 
-		var inst = $(this).draggable( "instance" ), that = this;
+		var that = this;
 
 		$.each(inst.sortables, function() {
 
@@ -739,15 +742,17 @@ $.ui.plugin.add("draggable", "connectToSortable", {
 });
 
 $.ui.plugin.add("draggable", "cursor", {
-	start: function() {
-		var t = $("body"), o = $(this).draggable( "instance" ).options;
+	start: function( event, ui, instance ) {
+		var t = $( "body" ),
+			o = instance.options;
+
 		if (t.css("cursor")) {
 			o._cursor = t.css("cursor");
 		}
 		t.css("cursor", o.cursor);
 	},
-	stop: function() {
-		var o = $(this).draggable( "instance" ).options;
+	stop: function( event, ui, instance ) {
+		var o = instance.options;
 		if (o._cursor) {
 			$("body").css("cursor", o._cursor);
 		}
@@ -755,15 +760,16 @@ $.ui.plugin.add("draggable", "cursor", {
 });
 
 $.ui.plugin.add("draggable", "opacity", {
-	start: function(event, ui) {
-		var t = $(ui.helper), o = $(this).draggable( "instance" ).options;
+	start: function( event, ui, instance ) {
+		var t = $( ui.helper ),
+			o = instance.options;
 		if(t.css("opacity")) {
 			o._opacity = t.css("opacity");
 		}
 		t.css("opacity", o.opacity);
 	},
-	stop: function(event, ui) {
-		var o = $(this).draggable( "instance" ).options;
+	stop: function( event, ui, instance ) {
+		var o = instance.options;
 		if(o._opacity) {
 			$(ui.helper).css("opacity", o._opacity);
 		}
@@ -771,15 +777,15 @@ $.ui.plugin.add("draggable", "opacity", {
 });
 
 $.ui.plugin.add("draggable", "scroll", {
-	start: function() {
-		var i = $(this).draggable( "instance" );
+	start: function( event, ui, i ) {
 		if(i.scrollParent[0] !== document && i.scrollParent[0].tagName !== "HTML") {
 			i.overflowOffset = i.scrollParent.offset();
 		}
 	},
-	drag: function( event ) {
+	drag: function( event, ui, i  ) {
 
-		var i = $(this).draggable( "instance" ), o = i.options, scrolled = false;
+		var o = i.options,
+			scrolled = false;
 
 		if(i.scrollParent[0] !== document && i.scrollParent[0].tagName !== "HTML") {
 
@@ -827,10 +833,9 @@ $.ui.plugin.add("draggable", "scroll", {
 });
 
 $.ui.plugin.add("draggable", "snap", {
-	start: function() {
+	start: function( event, ui, i ) {
 
-		var i = $(this).draggable( "instance" ),
-			o = i.options;
+		var o = i.options;
 
 		i.snapElements = [];
 
@@ -847,10 +852,9 @@ $.ui.plugin.add("draggable", "snap", {
 		});
 
 	},
-	drag: function(event, ui) {
+	drag: function( event, ui, inst ) {
 
 		var ts, bs, ls, rs, l, r, t, b, i, first,
-			inst = $(this).draggable( "instance" ),
 			o = inst.options,
 			d = o.snapTolerance,
 			x1 = ui.offset.left, x2 = x1 + inst.helperProportions.width,
@@ -922,9 +926,9 @@ $.ui.plugin.add("draggable", "snap", {
 });
 
 $.ui.plugin.add("draggable", "stack", {
-	start: function() {
+	start: function( event, ui, instance ) {
 		var min,
-			o = $(this).draggable( "instance" ).options,
+			o = instance.options,
 			group = $.makeArray($(o.stack)).sort(function(a,b) {
 				return (parseInt($(a).css("zIndex"),10) || 0) - (parseInt($(b).css("zIndex"),10) || 0);
 			});
@@ -940,15 +944,18 @@ $.ui.plugin.add("draggable", "stack", {
 });
 
 $.ui.plugin.add("draggable", "zIndex", {
-	start: function(event, ui) {
-		var t = $(ui.helper), o = $(this).draggable( "instance" ).options;
+	start: function( event, ui, instance ) {
+		var t = $( ui.helper ),
+			o = instance.options;
+
 		if(t.css("zIndex")) {
 			o._zIndex = t.css("zIndex");
 		}
 		t.css("zIndex", o.zIndex);
 	},
-	stop: function(event, ui) {
-		var o = $(this).draggable( "instance" ).options;
+	stop: function( event, ui, instance ) {
+		var o = instance.options;
+
 		if(o._zIndex) {
 			$(ui.helper).css("zIndex", o._zIndex);
 		}