1 /*
   2  * Copyright (c) 2003, 2015, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package sun.awt.X11;
  27 
  28 import java.awt.AWTException;
  29 import java.awt.Component;
  30 import java.awt.Container;
  31 import java.awt.Rectangle;
  32 import java.awt.im.spi.InputMethodContext;
  33 import java.awt.peer.ComponentPeer;
  34 
  35 import sun.awt.AWTAccessor;
  36 import sun.awt.X11InputMethod;
  37 
  38 import sun.util.logging.PlatformLogger;
  39 
  40 /**
  41  * Input Method Adapter for XIM (without Motif)
  42  *
  43  * @author JavaSoft International
  44  */
  45 public class XInputMethod extends X11InputMethod {
  46     private static final PlatformLogger log = PlatformLogger.getLogger("sun.awt.X11.XInputMethod");
  47 
  48     public XInputMethod() throws AWTException {
  49         super();
  50     }
  51 
  52     public void setInputMethodContext(InputMethodContext context) {
  53         context.enableClientWindowNotification(this, true);
  54     }
  55 
  56     public void notifyClientWindowChange(Rectangle location) {
  57         XComponentPeer peer = (XComponentPeer)getPeer(clientComponentWindow);
  58         if (peer != null) {
  59             adjustStatusWindow(peer.getContentWindow());
  60         }
  61     }
  62 
  63     protected boolean openXIM() {
  64         return openXIMNative(XToolkit.getDisplay());
  65     }
  66 
  67     protected boolean createXIC() {
  68         XComponentPeer peer = (XComponentPeer)getPeer(clientComponentWindow);
  69         if (peer == null) {
  70             return false;
  71         }
  72         return createXICNative(peer.getContentWindow());
  73     }
  74 
  75 
  76     private static volatile long xicFocus = 0;
  77 
  78     protected void setXICFocus(ComponentPeer peer,
  79                                     boolean value, boolean active) {
  80         if (peer == null) {
  81             return;
  82         }
  83         xicFocus = ((XComponentPeer)peer).getContentWindow();
  84         setXICFocusNative(((XComponentPeer)peer).getContentWindow(),
  85                           value,
  86                           active);
  87     }
  88 
  89     public static long getXICFocus() {
  90         return xicFocus;
  91     }
  92 
  93 /* XAWT_HACK  FIX ME!
  94    do NOT call client code!
  95 */
  96     protected Container getParent(Component client) {
  97         return client.getParent();
  98     }
  99 
 100     /**
 101      * Returns peer of the given client component. If the given client component
 102      * doesn't have peer, peer of the native container of the client is returned.
 103      */
 104     protected ComponentPeer getPeer(Component client) {
 105         XComponentPeer peer;
 106 
 107         if (log.isLoggable(PlatformLogger.Level.FINE)) {
 108             log.fine("Client is " + client);
 109         }
 110         peer = (XComponentPeer)XToolkit.targetToPeer(client);
 111         while (client != null && peer == null) {
 112             client = getParent(client);
 113             peer = (XComponentPeer)XToolkit.targetToPeer(client);
 114         }
 115         if (log.isLoggable(PlatformLogger.Level.FINE)) {
 116             log.fine("Peer is {0}, client is {1}", peer, client);
 117         }
 118 
 119         if (peer != null)
 120             return peer;
 121 
 122         return null;
 123     }
 124 
 125     /*
 126      * Subclasses should override disposeImpl() instead of dispose(). Client
 127      * code should always invoke dispose(), never disposeImpl().
 128      */
 129     protected synchronized void disposeImpl() {
 130         super.disposeImpl();
 131         clientComponentWindow = null;
 132     }
 133 
 134     protected void awtLock() {
 135         XToolkit.awtLock();
 136     }
 137 
 138     protected void awtUnlock() {
 139         XToolkit.awtUnlock();
 140     }
 141 
 142     long getCurrentParentWindow() {
 143         XWindow peer = AWTAccessor.getComponentAccessor()
 144                                   .getPeer(clientComponentWindow);
 145         return peer.getContentWindow();
 146     }
 147 
 148     /*
 149      * Native methods
 150      */
 151     private native boolean openXIMNative(long display);
 152     private native boolean createXICNative(long window);
 153     private native void setXICFocusNative(long window,
 154                                     boolean value, boolean active);
 155     private native void adjustStatusWindow(long window);
 156 }