node_modules

node_modules/jquery-ui/ui/focusable.js

@@ -0,0 +1,87 @@
+/*!
+ * jQuery UI Focusable 1.13.1
+ * http://jqueryui.com
+ *
+ * Copyright jQuery Foundation and other contributors
+ * Released under the MIT license.
+ * http://jquery.org/license
+ */
+
+//>>label: :focusable Selector
+//>>group: Core
+//>>description: Selects elements which can be focused.
+//>>docs: http://api.jqueryui.com/focusable-selector/
+
+( function( factory ) {
+	"use strict";
+
+	if ( typeof define === "function" && define.amd ) {
+
+		// AMD. Register as an anonymous module.
+		define( [ "jquery", "./version" ], factory );
+	} else {
+
+		// Browser globals
+		factory( jQuery );
+	}
+} )( function( $ ) {
+"use strict";
+
+// Selectors
+$.ui.focusable = function( element, hasTabindex ) {
+	var map, mapName, img, focusableIfVisible, fieldset,
+		nodeName = element.nodeName.toLowerCase();
+
+	if ( "area" === nodeName ) {
+		map = element.parentNode;
+		mapName = map.name;
+		if ( !element.href || !mapName || map.nodeName.toLowerCase() !== "map" ) {
+			return false;
+		}
+		img = $( "img[usemap='#" + mapName + "']" );
+		return img.length > 0 && img.is( ":visible" );
+	}
+
+	if ( /^(input|select|textarea|button|object)$/.test( nodeName ) ) {
+		focusableIfVisible = !element.disabled;
+
+		if ( focusableIfVisible ) {
+
+			// Form controls within a disabled fieldset are disabled.
+			// However, controls within the fieldset's legend do not get disabled.
+			// Since controls generally aren't placed inside legends, we skip
+			// this portion of the check.
+			fieldset = $( element ).closest( "fieldset" )[ 0 ];
+			if ( fieldset ) {
+				focusableIfVisible = !fieldset.disabled;
+			}
+		}
+	} else if ( "a" === nodeName ) {
+		focusableIfVisible = element.href || hasTabindex;
+	} else {
+		focusableIfVisible = hasTabindex;
+	}
+
+	return focusableIfVisible && $( element ).is( ":visible" ) && visible( $( element ) );
+};
+
+// Support: IE 8 only
+// IE 8 doesn't resolve inherit to visible/hidden for computed values
+function visible( element ) {
+	var visibility = element.css( "visibility" );
+	while ( visibility === "inherit" ) {
+		element = element.parent();
+		visibility = element.css( "visibility" );
+	}
+	return visibility === "visible";
+}
+
+$.extend( $.expr.pseudos, {
+	focusable: function( element ) {
+		return $.ui.focusable( element, $.attr( element, "tabindex" ) != null );
+	}
+} );
+
+return $.ui.focusable;
+
+} );