Fixes #790: added visible for Nav and Dropdown

framework/yii/bootstrap/Dropdown.php

@@ -26,6 +26,7 @@ class Dropdown extends Widget
 	 *
 	 * - label: string, required, the label of the item link
 	 * - url: string, optional, the url of the item link. Defaults to "#".
+	 * - visible: boolean, optional, whether this menu item is visible. Defaults to true.
 	 * - linkOptions: array, optional, the HTML attributes of the item link.
 	 * - options: array, optional, the HTML attributes of the item.
 	 */
@@ -64,7 +65,11 @@ public function run()
 	protected function renderItems($items)
 	{
 		$lines = array();
-		foreach ($items as $item) {
+		foreach ($items as $i => $item) {
+			if (isset($item['visible']) && !$item['visible']) {
+				unset($items[$i]);
+				continue;
+			}
 			if (is_string($item)) {
 				$lines[] = $item;
 				continue;

framework/yii/bootstrap/Nav.php

@@ -60,6 +60,7 @@ class Nav extends Widget
 	 *
 	 * - label: string, required, the nav item label.
 	 * - url: optional, the item's URL. Defaults to "#".
+	 * - visible: boolean, optional, whether this menu item is visible. Defaults to true.
 	 * - linkOptions: array, optional, the HTML attributes of the item's link.
 	 * - options: array, optional, the HTML attributes of the item container (LI).
 	 * - active: boolean, optional, whether the item should be on active state or not.
@@ -123,7 +124,11 @@ public function run()
 	public function renderItems()
 	{
 		$items = array();
-		foreach ($this->items as $item) {
+		foreach ($this->items as $i => $item) {
+			if (isset($item['visible']) && !$item['visible']) {
+				unset($items[$i]);
+				continue;
+			}
 			$items[] = $this->renderItem($item);
 		}