kill duplicates

platform/platform-impl/src/com/intellij/openapi/wm/impl/IdeMenuBar.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2000-2013 JetBrains s.r.o.
+ * Copyright 2000-2014 JetBrains s.r.o.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -198,22 +198,6 @@ public class IdeMenuBar extends JMenuBar implements IdeEventQueue.EventDispatche
     super.menuSelectionChanged(isIncluded);
   }
 
-  private static boolean isDescendingFrom(@Nullable Component a, @NotNull Component b) {
-    while (a != null) {
-      if (a == b) {
-        return true;
-      }
-
-      if (a instanceof JPopupMenu) {
-        a = ((JPopupMenu)a).getInvoker();
-      }
-      else {
-        a = a.getParent();
-      }
-    }
-    return false;
-  }
-
   private boolean isActivated() {
     int index = getSelectionModel().getSelectedIndex();
     if (index == -1) {
@@ -311,7 +295,7 @@ public class IdeMenuBar extends JMenuBar implements IdeEventQueue.EventDispatche
       Component component = findActualComponent(mouseEvent);
 
       if (myState != State.EXPANDED /*&& !myState.isInProgress()*/) {
-        boolean mouseInside = myActivated || isDescendingFrom(component, this);
+        boolean mouseInside = myActivated || UIUtil.isDescendingFrom(component, this);
         if (e.getID() == MouseEvent.MOUSE_EXITED && e.getSource() == SwingUtilities.windowForComponent(this) && !myActivated) mouseInside = false;
         if (mouseInside && myState == State.COLLAPSED) {
           setState(State.EXPANDING);

platform/platform-impl/src/com/intellij/ui/BalloonImpl.java

@@ -197,20 +197,12 @@ public class BalloonImpl implements Balloon, IdeTooltip.Ui {
 
     if (!cmp.isShowing()) return true;
     if (cmp == myCloseRec) return true;
-    if (isDescendingFrom(cmp, myComp) || cmp == myComp) return true;
+    if (UIUtil.isDescendingFrom(cmp, myComp)) return true;
     if (myComp == null || !myComp.isShowing()) return false;
     Rectangle rectangleOnScreen = new Rectangle(myComp.getLocationOnScreen(), myComp.getSize());
     return rectangleOnScreen.contains(target.getScreenPoint());
   }
 
-  private static boolean isDescendingFrom(@Nullable Component child, @NotNull Component parent) {
-    while (child != null && child != parent) {
-      child =  child instanceof JPopupMenu  ? ((JPopupMenu)child).getInvoker()
-                                            : child.getParent();
-    }
-    return child == parent;
-  }
-
   public boolean isMovingForward(RelativePoint target) {
     try {
       if (myComp == null || !myComp.isShowing()) return false;

platform/util/src/com/intellij/util/ui/UIUtil.java

@@ -2243,6 +2243,24 @@ public class UIUtil {
     return SystemInfo.isMac && isUnderAquaLookAndFeel() ? 28 : height;
   }
 
+
+  /**
+   * The main difference from javax.swing.SwingUtilities#isDescendingFrom(Component, Component) is that this method
+   * uses getInvoker() instead of getParent() when it meets JPopupMenu
+   * @param child child component
+   * @param parent parent component
+   * @return true if parent if a top parent of child, false otherwise
+   *
+   * @see javax.swing.SwingUtilities#isDescendingFrom(java.awt.Component, java.awt.Component)
+   */
+  public static boolean isDescendingFrom(@Nullable Component child, @NotNull Component parent) {
+    while (child != null && child != parent) {
+      child =  child instanceof JPopupMenu  ? ((JPopupMenu)child).getInvoker()
+                                            : child.getParent();
+    }
+    return child == parent;
+  }
+
   @Nullable
   public static <T> T getParentOfType(Class<? extends T> cls, Component c) {
     Component eachParent = c;