missing add/removeHierarchyListener

BobHanson · BobHanson · commit 904eb9224099 · 2020-02-25T00:08:26.000-06:00
diff --git a/sources/net.sf.j2s.java.core/src/java/awt/Component.java b/sources/net.sf.j2s.java.core/src/java/awt/Component.java
@@ -4360,6 +4360,26 @@ public synchronized FocusListener[] getFocusListeners() {
 	 * @since 1.3
 	 */
 	public void addHierarchyListener(HierarchyListener l) {
+	
+        if (l == null) {
+            return;
+        }
+        boolean notifyAncestors;
+        synchronized (this) {
+            notifyAncestors =
+                (hierarchyListener == null &&
+                 (eventMask & AWTEvent.HIERARCHY_EVENT_MASK) == 0);
+            hierarchyListener = AWTEventMulticaster.add(hierarchyListener, l);
+            notifyAncestors = (notifyAncestors && hierarchyListener != null);
+            newEventsOnly = true;
+        }
+        if (notifyAncestors) {
+            synchronized (getTreeLock()) {
+                adjustListeningChildrenOnParent(AWTEvent.HIERARCHY_EVENT_MASK,
+                                                1);
+            }
+        }
+
 	}
 
 	/**
@@ -4381,6 +4401,26 @@ public void addHierarchyListener(HierarchyListener l) {
 	 * @since 1.3
 	 */
 	public void removeHierarchyListener(HierarchyListener l) {
+		
+        if (l == null) {
+            return;
+        }
+        boolean notifyAncestors;
+        synchronized (this) {
+            notifyAncestors =
+                (hierarchyListener != null &&
+                 (eventMask & AWTEvent.HIERARCHY_EVENT_MASK) == 0);
+            hierarchyListener =
+                AWTEventMulticaster.remove(hierarchyListener, l);
+            notifyAncestors = (notifyAncestors && hierarchyListener == null);
+        }
+        if (notifyAncestors) {
+            synchronized (getTreeLock()) {
+                adjustListeningChildrenOnParent(AWTEvent.HIERARCHY_EVENT_MASK,
+                                                -1);
+            }
+        }
+
 	}
 
 	/**
