Sortable: fire "over" and "out" even when a connectWith hasn't changed

Fixes #9335

tests/unit/sortable/sortable.html

@@ -16,7 +16,8 @@
			"ui/core.js",
			"ui/widget.js",
			"ui/mouse.js",
			"ui/sortable.js"
			"ui/sortable.js",
			"ui/draggable.js"
		]
	});
	</script>

tests/unit/sortable/sortable_events.js

@@ -258,11 +258,114 @@ test( "over", function() {
	equal( overCount, 1, "over fires only once" );
});

// http://bugs.jqueryui.com/ticket/9335
// Sortable: over & out events does not consistently fire
test( "over, fires with draggable connected to sortable", function() {
	expect( 3 );

	var hash,
		overCount = 0,
		item = $( "<div></div>" ).text( "6" ).insertAfter( "#sortable" );

	item.draggable({
		connectToSortable: "#sortable"
	});
	$( ".connectWith" ).sortable({
		connectWith: ".connectWith",
		over: function( event, ui ) {
			hash = ui;
			overCount++;
		}
	});

	item.simulate( "drag", {
		dy: -20
	});

	ok( hash, "over event triggered" );
	ok( !hash.sender, "UI should not include: sender" );
	equal( overCount, 1, "over fires only once" );
});

test( "over, with connected sortable", function() {
	expect( 3 );

	var hash,
		overCount = 0;

	$( ".connectWith" ).sortable({
		connectWith: ".connectWith"
	});
	$( "#sortable2" ).on( "sortover", function( event, ui ) {
		hash = ui;
		overCount++;
	});
	$( "#sortable" ).find( "li:eq(0)" ).simulate( "drag", {
		dy: 102
	});

	ok( hash, "over event triggered" );
	equal( hash.sender[ 0 ], $(" #sortable" )[ 0 ], "UI includes: sender" );
	equal( overCount, 1, "over fires only once" );
});

/*
test("out", function() {
	ok(false, "missing test - untested code is broken code.");
});
*/

test( "out, with connected sortable", function() {
	expect( 2 );

	var hash,
		outCount = 0;

	$( ".connectWith" ).sortable({
		connectWith: ".connectWith"
	});
	$( "#sortable" ).on( "sortout", function( event, ui ) {
		hash = ui;
		outCount++;
	});
	$( "#sortable" ).find( "li:last" ).simulate( "drag", {
		dy: 40
	});

	ok( hash, "out event triggered" );
	equal( outCount, 1, "out fires only once" );
});

test( "repeated out & over between connected sortables", function() {
	expect( 2 );

	var outCount = 0,
		overCount = 0;

	$( ".connectWith" ).sortable({
		connectWith: ".connectWith",
		over: function() {
			overCount++;
		},
		out: function( event, ui ) {
			// Ignore events that trigger when an item has dropped
			// checking for the presence of the helper.
			if ( !ui.helper ) {
				outCount++;
			}
		}
	});
	$( "#sortable" ).find( "li:last" ).simulate( "drag", {
		dy: 40
	}).simulate( "drag", {
		dy: -40
	});

	equal( outCount, 2, "out fires twice" );
	equal( overCount, 4, "over fires four times" );
});

/*
test("activate", function() {
	ok(false, "missing test - untested code is broken code.");
});

ui/sortable.js

@@ -911,6 +911,10 @@ return $.widget("ui.sortable", $.ui.mouse, {
			}

			if(this.currentContainer === this.containers[innermostIndex]) {
				if ( !this.currentContainer.containerCache.over ) {
					this.containers[ innermostIndex ]._trigger( "over", event, this._uiHash() );
					this.currentContainer.containerCache.over = 1;
				}
				return;
			}