platform-api/src/com/intellij/openapi/ui/popup/util/PopupUtil.java

   1 package com.intellij.openapi.ui.popup.util;
   2
   3 import com.intellij.openapi.ui.popup.JBPopup;
   4 import org.jetbrains.annotations.Nullable;
   5
   6 import javax.swing.*;
   7 import java.awt.*;
   8
   9 public class PopupUtil {
  10
  11   private PopupUtil() {
  12   }
  13
  14   @Nullable
  15   public static Component getOwner(@Nullable Component c) {
  16     if (c == null) return null;
  17
  18     final Window wnd = SwingUtilities.getWindowAncestor(c);
  19     if (wnd instanceof JWindow) {
  20       final JRootPane root = ((JWindow)wnd).getRootPane();
  21       final JBPopup popup = (JBPopup)root.getClientProperty(JBPopup.KEY);
  22       if (popup == null) return c;
  23
  24       final Component owner = popup.getOwner();
  25       if (owner == null) return c;
  26
  27       return getOwner(owner);
  28     }
  29     else {
  30       return c;
  31     }
  32   }
  33
  34 }