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+/* EmbeddedWindow.java --
+ Copyright (C) 2003, 2004 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING. If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library. Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module. An independent module is a module which is not derived from
+or based on this library. If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so. If you do not wish to do so, delete this
+exception statement from your version. */
+
+
+package gnu.java.awt;
+
+import gnu.java.awt.peer.EmbeddedWindowPeer;
+import gnu.java.security.action.SetAccessibleAction;
+
+import java.awt.Component;
+import java.awt.Frame;
+import java.lang.reflect.Field;
+import java.security.AccessController;
+
+/**
+ * Represents an AWT window that can be embedded into another
+ * application.
+ *
+ * @author Michael Koch (konqueror@gmx.de)
+ */
+public class EmbeddedWindow extends Frame
+{
+ private long handle;
+
+ /**
+ * Creates a window to be embedded into another application. The
+ * window will only be embedded after its setHandle method has been
+ * called.
+ */
+ public EmbeddedWindow ()
+ {
+ super();
+ this.handle = 0;
+ }
+
+ /**
+ * Creates a window to be embedded into another application.
+ *
+ * @param handle the native handle to the screen area where the AWT
+ * window should be embedded
+ */
+ public EmbeddedWindow (long handle)
+ {
+ super();
+ this.handle = handle;
+ }
+
+ /**
+ * Creates the native peer for this embedded window.
+ */
+ public void addNotify()
+ {
+ // Assume we're using ClasspathToolkit
+ ClasspathToolkit tk = (ClasspathToolkit) getToolkit();
+
+ // Circumvent the package-privateness of the AWT internal
+ // java.awt.Component.peer member variable.
+ try
+ {
+ Field peerField = Component.class.getDeclaredField("peer");
+ AccessController.doPrivileged(new SetAccessibleAction(peerField));
+ peerField.set(this, tk.createEmbeddedWindow (this));
+ }
+ catch (IllegalAccessException e)
+ {
+ throw new AssertionError (e);
+ }
+ catch (NoSuchFieldException e)
+ {
+ throw new AssertionError (e);
+ }
+
+ super.addNotify();
+ }
+
+ /**
+ * If the native peer for this embedded window has been created,
+ * then setHandle will embed the window. If not, setHandle tells
+ * us where to embed ourselves when our peer is created.
+ *
+ * @param handle the native handle to the screen area where the AWT
+ * window should be embedded
+ */
+ public void setHandle(long handle)
+ {
+ if (this.handle != 0)
+ throw new RuntimeException ("EmbeddedWindow is already embedded");
+
+ this.handle = handle;
+ if (getPeer() != null)
+ ((EmbeddedWindowPeer) getPeer()).embed (this.handle);
+ }
+
+ /**
+ * Gets the native handle of the screen area where the window will
+ * be embedded.
+ *
+ * @return The native handle that was passed to the constructor.
+ */
+ public long getHandle()
+ {
+ return handle;
+ }
+}