From f0aa83bef648c2c3d7c570d0dae1b748ec2b0e6d Mon Sep 17 00:00:00 2001
From: Alexander Ebert <ebert@woltlab.com>
Date: Wed, 24 Jun 2015 19:25:45 +0200
Subject: [PATCH] Improved `UI/SimpleDropdown`

---
 .../js/WoltLab/WCF/UI/Dropdown/Simple.js      | 41 +++++++++++++++----
 1 file changed, 34 insertions(+), 7 deletions(-)

diff --git a/wcfsetup/install/files/js/WoltLab/WCF/UI/Dropdown/Simple.js b/wcfsetup/install/files/js/WoltLab/WCF/UI/Dropdown/Simple.js
index ca345a62c5..1fc5326631 100644
--- a/wcfsetup/install/files/js/WoltLab/WCF/UI/Dropdown/Simple.js
+++ b/wcfsetup/install/files/js/WoltLab/WCF/UI/Dropdown/Simple.js
@@ -195,6 +195,33 @@ define(
 			this.setAlignment(dropdown, menu);
 		},
 		
+		/**
+		 * Returns true if target dropdown exists and is open.
+		 * 
+		 * @param	{string}	containerId	dropdown wrapper id
+		 * @return	{boolean}	true if dropdown exists and is open
+		 */
+		isOpen: function(containerId) {
+			var menu = _menus.get(containerId);
+			if (menu !== undefined && menu.classList.contains('dropdownOpen')) {
+				return true;
+			}
+			
+			return false;
+		},
+		
+		/**
+		 * Opens the dropdown unless it is already open.
+		 * 
+		 * @param	{string}	containerId	dropdown wrapper id
+		 */
+		open: function(containerId) {
+			var menu = _menus.get(containerId);
+			if (menu !== undefined && !menu.classList.contains('dropdownOpen')) {
+				this.toggleDropdown(containerId);
+			}
+		},
+		
 		/**
 		 * Closes the dropdown identified by given id without notifying callbacks.
 		 * 
@@ -313,7 +340,12 @@ define(
 		 * @return	{boolean}	'false' if event is not null
 		 */
 		_toggle: function(event, targetId) {
-			targetId = (event === null) ? targetId : event.currentTarget.getAttribute('data-target');
+			if (event !== null) {
+				event.preventDefault();
+				event.stopPropagation();
+				
+				targetId = event.currentTarget.getAttribute('data-target');
+			}
 			
 			// check if 'isOverlayDropdownButton' is set which indicates if
 			// the dropdown toggle is in an overlay
@@ -350,12 +382,7 @@ define(
 			// TODO
 			WCF.Dropdown.Interactive.Handler.closeAll();
 			
-			if (event !== null) {
-				event.stopPropagation();
-				return false;
-			}
-			
-			return true;
+			return (event === null);
 		}
 	};
 	
-- 
2.20.1