open / close events for dropdown

haxeui · Apr 6, 2024 · 753f907 · 753f907
1 parent 9e0af42
commit 753f907
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Showing 2 changed files with 16 additions and 1 deletion.
diff --git a/haxe/ui/components/DropDown.hx b/haxe/ui/components/DropDown.hx
@@ -696,6 +696,9 @@ class DropDownEvents extends ButtonEvents {
     private var _wrapper:Box = null;
     private var _dropdownOpen:Bool = false;
     public function showDropDown() {
+        if (_dropdownOpen) {
+            return;
+        }
         var handler:IDropDownHandler = cast(_dropdown._compositeBuilder, DropDownBuilder).handler;
         if (handler == null) {
             return;
@@ -834,6 +837,9 @@ class DropDownEvents extends ButtonEvents {
         Screen.instance.registerEvent(MouseEvent.RIGHT_MOUSE_DOWN, onScreenMouseDown);
         registerEvent(UIEvent.MOVE, onDropDownMoved);
         _dropdownOpen = true;
+
+        var event = new UIEvent(UIEvent.OPEN);
+        _dropdown.dispatch(event);
     }
 
     private function onDropDownMoved(_) {
@@ -913,6 +919,9 @@ class DropDownEvents extends ButtonEvents {
     }
 
     public function hideDropDown() {
+        if (!_dropdownOpen) {
+            return;
+        }
         var handler:IDropDownHandler = cast(_dropdown._compositeBuilder, DropDownBuilder).handler;
         if (handler == null) {
             return;
@@ -939,6 +948,9 @@ class DropDownEvents extends ButtonEvents {
         Screen.instance.unregisterEvent(MouseEvent.RIGHT_MOUSE_DOWN, onScreenMouseDown);
         unregisterEvent(UIEvent.MOVE, onDropDownMoved);
         _dropdownOpen = false;
+
+        var event = new UIEvent(UIEvent.CLOSE);
+        _dropdown.dispatch(event);
     }
 
     private function onScreenMouseDown(event:MouseEvent) {

diff --git a/haxe/ui/events/UIEvent.hx b/haxe/ui/events/UIEvent.hx
@@ -44,9 +44,12 @@ class UIEvent extends EventImpl {
     /** DISABLED is dispatched when component is disabled **/
     public static final DISABLED:EventType<UIEvent> = EventType.name("disabled");
 
+    /** OPEN is dispatched by certain components when opened **/
+    public static final OPEN:EventType<UIEvent> = EventType.name("open");
+
     /** BEFORE_CLOSE is dispatched by tab before closing **/
     public static final BEFORE_CLOSE:EventType<UIEvent> = EventType.name("beforeclose");
-    /** CLOSE is dispatched by tab and menus after closing **/
+    /** CLOSE is dispatched by certain components when closed **/
     public static final CLOSE:EventType<UIEvent> = EventType.name("close");
 
     /** PROPERTY_CHANGE is dispatched by dropdowns, lists, etc where a specific property has changed usually selected item **/