Resizable: Modified the default z-index value of resizable handles. Fixed #7960 - Dialog: Modal dialogs do not disable resizables on the page.

tests/unit/resizable/resizable.html

@@ -16,6 +16,8 @@
 			"ui/jquery.ui.core.js",
 			"ui/jquery.ui.widget.js",
 			"ui/jquery.ui.mouse.js",
+			"ui/jquery.ui.button.js",
+			"ui/jquery.ui.dialog.js",
 			"ui/jquery.ui.resizable.js"
 		]
 	});

tests/unit/resizable/resizable_common.js

@@ -19,7 +19,7 @@ TestHelpers.commonWidgetTests('resizable', {
 		maxWidth: null,
 		minHeight: 10,
 		minWidth: 10,
-		zIndex: 1000,
+		zIndex: 90,
 
 		// callbacks
 		create: null

tests/unit/resizable/resizable_options.js

@@ -210,4 +210,18 @@ test("zIndex, applied to all handles", function() {
 	});
 });
 
+test( "zIndex, less than a modal dialog's overlay by default", function() {
+	expect(1);
+
+	var resizable = $( '<div></div>' ).resizable();
+	var dialog = $( '<div></div>' ).dialog( { modal: true });
+
+	var resizableZIndex = resizable.resizable( 'option', 'zIndex' );
+	var overlayZIndex = $( '.ui-widget-overlay' ).css( 'zIndex' );
+	overlayZIndex = parseInt( overlayZIndex, 10 );
+
+	ok( resizableZIndex < overlayZIndex, "Resizables behind a modal dialog must have a smaller z-index than the overlay so that they're not resizable.  See #7960." );
+	dialog.dialog( 'destroy' );
+});
+
 })(jQuery);

ui/jquery.ui.resizable.js

@@ -42,7 +42,8 @@ $.widget("ui.resizable", $.ui.mouse, {
 		maxWidth: null,
 		minHeight: 10,
 		minWidth: 10,
-		zIndex: 1000
+		// See #7960
+		zIndex: 90
 	},
 	_create: function() {