1 /*
   2  * Copyright (c) 2013, 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.windows;
  27 
  28 import java.awt.Component;
  29 import java.awt.Graphics;
  30 import java.awt.event.ComponentEvent;
  31 import java.awt.event.MouseEvent;
  32 
  33 import sun.awt.LightweightFrame;
  34 import sun.awt.LightweightFramePeer;
  35 import sun.awt.LightweightFramePeerInterface;
  36 
  37 public class WLightweightFramePeer extends WFramePeer implements LightweightFramePeer {
  38 
  39     public WLightweightFramePeer(LightweightFrame target) {
  40         super(target);
  41     }
  42 
  43     private static WLightweightFramePeer lightweightFramePeerUnderMouse = null;
  44 
  45     @Override
  46     public void setLightWeightFrameUnderMouse() {
  47         lightweightFramePeerUnderMouse = this;
  48         setLWFrameUnderMouse(this);
  49     }
  50 
  51     @Override
  52     public boolean cleanLightWeightFrameUnderMouse() {
  53         if (lightweightFramePeerUnderMouse == this) {
  54             lightweightFramePeerUnderMouse = this;
  55             setLWFrameUnderMouse(null);
  56             return true;
  57         }
  58         return false;
  59     }
  60 
  61     static LightweightFrame getFrameUnderCursor() {
  62         return lightweightFramePeerUnderMouse == null ? null : lightweightFramePeerUnderMouse.getLwTarget();
  63     }
  64 
  65     private static native void setLWFrameUnderMouse(WLightweightFramePeer lwFrame);
  66 
  67     private LightweightFrame getLwTarget() {
  68         return (LightweightFrame)target;
  69     }
  70 
  71     @Override
  72     public Graphics getGraphics() {
  73         return getLwTarget().getGraphics();
  74     }
  75 
  76     @Override
  77     public void show() {
  78         super.show();
  79         postEvent(new ComponentEvent((Component)getTarget(), ComponentEvent.COMPONENT_SHOWN));
  80     }
  81 
  82     @Override
  83     public void hide() {
  84         super.hide();
  85         postEvent(new ComponentEvent((Component)getTarget(), ComponentEvent.COMPONENT_HIDDEN));
  86     }
  87 
  88     @Override
  89     public void reshape(int x, int y, int width, int height) {
  90         super.reshape(x, y, width, height);
  91         postEvent(new ComponentEvent((Component) getTarget(), ComponentEvent.COMPONENT_MOVED));
  92         postEvent(new ComponentEvent((Component) getTarget(), ComponentEvent.COMPONENT_RESIZED));
  93     }
  94 
  95     @Override
  96     public void handleEvent(java.awt.AWTEvent e) {
  97         if (e.getID() == MouseEvent.MOUSE_PRESSED) {
  98             emulateActivation(true);
  99         }
 100         super.handleEvent(e);
 101     }
 102 
 103     @Override
 104     public void grab() {
 105         getLwTarget().grabFocus();
 106     }
 107 
 108     @Override
 109     public void ungrab() {
 110         getLwTarget().ungrabFocus();
 111     }
 112 }