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3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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5  * This code is free software; you can redistribute it and/or modify it
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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.
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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).
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24  */
25 
26 package sun.awt.X11;
27 
28 import java.awt.*;
29 
30 /**
31  * This class represent focus holder window implementation. When toplevel requests or receives focus
32  * it instead sets focus to this proxy. This proxy is mapped but invisible(it is kept at (-1,-1))
33  * and therefore X doesn't control focus after we have set it to proxy.
34  */
35 public class XFocusProxyWindow extends XBaseWindow {
36     XWindowPeer owner;
37 
XFocusProxyWindow(XWindowPeer owner)38     public XFocusProxyWindow(XWindowPeer owner) {
39         super(new XCreateWindowParams(new Object[] {
40             BOUNDS, new Rectangle(-1, -1, 1, 1),
41             PARENT_WINDOW, Long.valueOf(owner.getWindow()),
42             EVENT_MASK, Long.valueOf(XConstants.FocusChangeMask | XConstants
43                 .KeyPressMask | XConstants.KeyReleaseMask)
44         }));
45         this.owner = owner;
46     }
47 
postInit(XCreateWindowParams params)48     public void postInit(XCreateWindowParams params){
49         super.postInit(params);
50         setWMClass(getWMClass());
51         xSetVisible(true);
52     }
53 
getWMName()54     protected String getWMName() {
55         return "FocusProxy";
56     }
getWMClass()57     protected String[] getWMClass() {
58         return new String[] {"Focus-Proxy-Window", "FocusProxy"};
59     }
60 
getOwner()61     public XWindowPeer getOwner() {
62         return owner;
63     }
64 
dispatchEvent(XEvent ev)65     public void dispatchEvent(XEvent ev) {
66         int type = ev.get_type();
67         switch (type)
68         {
69           case XConstants.FocusIn:
70           case XConstants.FocusOut:
71               handleFocusEvent(ev);
72               break;
73         }
74         super.dispatchEvent(ev);
75     }
76 
handleFocusEvent(XEvent xev)77     public void handleFocusEvent(XEvent xev) {
78         owner.handleFocusEvent(xev);
79     }
80 
handleKeyPress(XEvent xev)81     public void handleKeyPress(XEvent xev) {
82         owner.handleKeyPress(xev);
83     }
84 
handleKeyRelease(XEvent xev)85     public void handleKeyRelease(XEvent xev) {
86         owner.handleKeyRelease(xev);
87     }
88 }
89