source: trunk/vnc/vnc_javasrc/ButtonPanel.java @ 86

Last change on this file since 86 was 66, checked in by quentin, 17 years ago

Initial checkin of modified Java VNC viewer for use as remote console

File size: 4.4 KB
Line 
1//
2//  Copyright (C) 2001,2002 HorizonLive.com, Inc.  All Rights Reserved.
3//  Copyright (C) 1999 AT&T Laboratories Cambridge.  All Rights Reserved.
4//
5//  This is free software; you can redistribute it and/or modify
6//  it under the terms of the GNU General Public License as published by
7//  the Free Software Foundation; either version 2 of the License, or
8//  (at your option) any later version.
9//
10//  This software is distributed in the hope that it will be useful,
11//  but WITHOUT ANY WARRANTY; without even the implied warranty of
12//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13//  GNU General Public License for more details.
14//
15//  You should have received a copy of the GNU General Public License
16//  along with this software; if not, write to the Free Software
17//  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,
18//  USA.
19//
20
21//
22// ButtonPanel class implements panel with four buttons in the
23// VNCViewer desktop window.
24//
25
26import java.awt.*;
27import java.awt.event.*;
28import java.io.*;
29
30class ButtonPanel extends Panel implements ActionListener {
31
32  VncViewer viewer;
33  Button disconnectButton;
34  Button optionsButton;
35  Button recordButton;
36  Button clipboardButton;
37  Button ctrlAltDelButton;
38  Button refreshButton;
39
40  ButtonPanel(VncViewer v) {
41    viewer = v;
42
43    setLayout(new FlowLayout(FlowLayout.LEFT, 0, 0));
44    disconnectButton = new Button("Disconnect");
45    disconnectButton.setEnabled(false);
46    add(disconnectButton);
47    disconnectButton.addActionListener(this);
48    optionsButton = new Button("Options");
49    add(optionsButton);
50    optionsButton.addActionListener(this);
51    clipboardButton = new Button("Clipboard");
52    clipboardButton.setEnabled(false);
53    add(clipboardButton);
54    clipboardButton.addActionListener(this);
55    if (viewer.rec != null) {
56      recordButton = new Button("Record");
57      add(recordButton);
58      recordButton.addActionListener(this);
59    }
60    ctrlAltDelButton = new Button("Send Ctrl-Alt-Del");
61    ctrlAltDelButton.setEnabled(false);
62    add(ctrlAltDelButton);
63    ctrlAltDelButton.addActionListener(this);
64    refreshButton = new Button("Refresh");
65    refreshButton.setEnabled(false);
66    add(refreshButton);
67    refreshButton.addActionListener(this);
68  }
69
70  //
71  // Enable buttons on successful connection.
72  //
73
74  public void enableButtons() {
75    disconnectButton.setEnabled(true);
76    clipboardButton.setEnabled(true);
77    refreshButton.setEnabled(true);
78  }
79
80  //
81  // Disable all buttons on disconnect.
82  //
83
84  public void disableButtonsOnDisconnect() {
85    remove(disconnectButton);
86    disconnectButton = new Button("Hide desktop");
87    disconnectButton.setEnabled(true);
88    add(disconnectButton, 0);
89    disconnectButton.addActionListener(this);
90
91    optionsButton.setEnabled(false);
92    clipboardButton.setEnabled(false);
93    ctrlAltDelButton.setEnabled(false);
94    refreshButton.setEnabled(false);
95
96    validate();
97  }
98
99  //
100  // Enable/disable controls that should not be available in view-only
101  // mode.
102  //
103
104  public void enableRemoteAccessControls(boolean enable) {
105    ctrlAltDelButton.setEnabled(enable);
106  }
107
108  //
109  // Event processing.
110  //
111
112  public void actionPerformed(ActionEvent evt) {
113
114    viewer.moveFocusToDesktop();
115
116    if (evt.getSource() == disconnectButton) {
117      viewer.disconnect();
118
119    } else if (evt.getSource() == optionsButton) {
120      viewer.options.setVisible(!viewer.options.isVisible());
121
122    } else if (evt.getSource() == recordButton) {
123      viewer.rec.setVisible(!viewer.rec.isVisible());
124
125    } else if (evt.getSource() == clipboardButton) {
126      viewer.clipboard.setVisible(!viewer.clipboard.isVisible());
127
128    } else if (evt.getSource() == ctrlAltDelButton) {
129      try {
130        final int modifiers = InputEvent.CTRL_MASK | InputEvent.ALT_MASK;
131
132        KeyEvent ctrlAltDelEvent =
133          new KeyEvent(this, KeyEvent.KEY_PRESSED, 0, modifiers, 127);
134        viewer.rfb.writeKeyEvent(ctrlAltDelEvent);
135
136        ctrlAltDelEvent =
137          new KeyEvent(this, KeyEvent.KEY_RELEASED, 0, modifiers, 127);
138        viewer.rfb.writeKeyEvent(ctrlAltDelEvent);
139
140      } catch (IOException e) {
141        e.printStackTrace();
142      }
143    } else if (evt.getSource() == refreshButton) {
144      try {
145        RfbProto rfb = viewer.rfb;
146        rfb.writeFramebufferUpdateRequest(0, 0, rfb.framebufferWidth,
147                                          rfb.framebufferHeight, false);
148      } catch (IOException e) {
149        e.printStackTrace();
150      }
151    }
152  }
153}
154
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