/*
* Copyright (c) 2003, 2005, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code 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
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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package sun.awt.motif;
import java.awt.Component;
import java.awt.Cursor;
import java.awt.Window;
import java.awt.datatransfer.Transferable;
import java.awt.dnd.DragSourceContext;
import java.awt.dnd.DragSourceDragEvent;
import java.awt.dnd.DragSourceDropEvent;
import java.awt.dnd.DragSourceEvent;
import java.awt.dnd.DragGestureEvent;
import java.awt.dnd.InvalidDnDOperationException;
import java.awt.event.InputEvent;
import java.util.Map;
import sun.awt.SunToolkit;
import sun.awt.dnd.SunDragSourceContextPeer;
import sun.awt.dnd.SunDropTargetContextPeer;
/**
* The X11DragSourceContextPeer class is the class responsible for handling
* the interaction between the XDnD/Motif DnD subsystem and Java drag sources.
*
* @since 1.5
*/
final class X11DragSourceContextPeer extends SunDragSourceContextPeer {
private static final X11DragSourceContextPeer theInstance =
new X11DragSourceContextPeer(null);
/**
* construct a new X11DragSourceContextPeer
*/
private X11DragSourceContextPeer(DragGestureEvent dge) {
super(dge);
}
static X11DragSourceContextPeer createDragSourceContextPeer(DragGestureEvent dge) throws InvalidDnDOperationException {
theInstance.setTrigger(dge);
return theInstance;
}
protected void startDrag(Transferable transferable,
long[] formats, Map formatMap) {
Component component = getTrigger().getComponent();
Component c = null;
MWindowPeer wpeer = null;
for (c = component; c != null && !(c instanceof java.awt.Window);
c = MComponentPeer.getParent_NoClientCode(c));
if (c instanceof Window) {
wpeer = (MWindowPeer)c.getPeer();
}
if (wpeer == null) {
throw new InvalidDnDOperationException(
"Cannot find top-level for the drag source component");
}
startDrag(component,
wpeer,
transferable,
getTrigger().getTriggerEvent(),
getCursor(),
getCursor() == null ? 0 : getCursor().getType(),
getDragSourceContext().getSourceActions(),
formats,
formatMap);
/* This implementation doesn't use native context */
setNativeContext(0);
SunDropTargetContextPeer.setCurrentJVMLocalSourceTransferable(transferable);
}
/**
* downcall into native code
*/
private native long startDrag(Component component,
MWindowPeer wpeer,
Transferable transferable,
InputEvent nativeTrigger,
Cursor c, int ctype, int actions,
long[] formats, Map formatMap);
/**
* set cursor
*/
public void setCursor(Cursor c) throws InvalidDnDOperationException {
SunToolkit.awtLock();
super.setCursor(c);
SunToolkit.awtUnlock();
}
protected native void setNativeCursor(long nativeCtxt, Cursor c, int cType);
}