--- /dev/null
+//
+// Copyright (C) 2001,2002 HorizonLive.com, Inc. All Rights Reserved.
+// Copyright (C) 1999 AT&T Laboratories Cambridge. All Rights Reserved.
+//
+// This is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation; either version 2 of the License, or
+// (at your option) any later version.
+//
+// This software 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 for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this software; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
+// USA.
+//
+
+//
+// VncViewer.java - the VNC viewer applet. This class mainly just sets up the
+// user interface, leaving it to the VncCanvas to do the actual rendering of
+// a VNC desktop.
+//
+
+import java.awt.*;
+import java.awt.event.*;
+import java.io.*;
+
+public class VncViewer extends java.applet.Applet
+ implements java.lang.Runnable, WindowListener {
+
+ boolean inAnApplet = true;
+ boolean inSeparateFrame = false;
+
+ //
+ // main() is called when run as a java program from the command line.
+ // It simply runs the applet inside a newly-created frame.
+ //
+
+ public static void main(String[] argv) {
+ VncViewer v = new VncViewer();
+ v.mainArgs = argv;
+ v.inAnApplet = false;
+ v.inSeparateFrame = true;
+
+ v.init();
+ v.start();
+ }
+
+ String[] mainArgs;
+
+ RfbProto rfb;
+ Thread rfbThread;
+
+ Frame vncFrame;
+ Container vncContainer;
+ ScrollPane desktopScrollPane;
+ GridBagLayout gridbag;
+ ButtonPanel buttonPanel;
+ AuthPanel authenticator;
+ VncCanvas vc;
+ OptionsFrame options;
+ ClipboardFrame clipboard;
+
+ // Variables read from parameter values.
+ String host;
+ int port;
+ String passwordParam;
+ int deferScreenUpdates;
+ int deferCursorUpdates;
+ int deferUpdateRequests;
+
+
+ //
+ // init()
+ //
+
+ public void init() {
+
+ readParameters();
+
+ if (inSeparateFrame) {
+ vncFrame = new Frame("TightVNC");
+ if (!inAnApplet) {
+ vncFrame.add("Center", this);
+ }
+ vncContainer = vncFrame;
+ } else {
+ vncContainer = this;
+ }
+
+ options = new OptionsFrame(this);
+ clipboard = new ClipboardFrame(this);
+ authenticator = new AuthPanel();
+
+ if (inSeparateFrame)
+ vncFrame.addWindowListener(this);
+
+ rfbThread = new Thread(this);
+ rfbThread.start();
+ }
+
+ public void update(Graphics g) {
+ }
+
+ //
+ // run() - executed by the rfbThread to deal with the RFB socket.
+ //
+
+ public void run() {
+
+ gridbag = new GridBagLayout();
+ vncContainer.setLayout(gridbag);
+
+ GridBagConstraints gbc = new GridBagConstraints();
+ gbc.gridwidth = GridBagConstraints.REMAINDER;
+ gbc.anchor = GridBagConstraints.NORTHWEST;
+
+ if (options.showControls) {
+ buttonPanel = new ButtonPanel(this);
+ buttonPanel.setLayout(new FlowLayout(FlowLayout.LEFT, 0, 0));
+ gridbag.setConstraints(buttonPanel, gbc);
+ vncContainer.add(buttonPanel);
+ }
+
+ try {
+ connectAndAuthenticate();
+
+ doProtocolInitialisation();
+
+ vc = new VncCanvas(this);
+ gbc.weightx = 1.0;
+ gbc.weighty = 1.0;
+
+ if (inSeparateFrame) {
+
+ // Create a panel which itself is resizeable and can hold
+ // non-resizeable VncCanvas component at the top left corner.
+ Panel canvasPanel = new Panel();
+ canvasPanel.setLayout(new FlowLayout(FlowLayout.LEFT, 0, 0));
+ canvasPanel.add(vc);
+
+ // Create a ScrollPane which will hold a panel with VncCanvas
+ // inside.
+ desktopScrollPane = new ScrollPane(ScrollPane.SCROLLBARS_AS_NEEDED);
+ gbc.fill = GridBagConstraints.BOTH;
+ gridbag.setConstraints(desktopScrollPane, gbc);
+ desktopScrollPane.add(canvasPanel);
+
+ // Finally, add our ScrollPane to the Frame window.
+ vncFrame.add(desktopScrollPane);
+ vncFrame.setTitle(rfb.desktopName);
+ vncFrame.pack();
+ vc.resizeDesktopFrame();
+
+ } else {
+
+ // Just add the VncCanvas component to the Applet.
+ gridbag.setConstraints(vc, gbc);
+ add(vc);
+ validate();
+
+ }
+
+ if (options.showControls)
+ buttonPanel.enableButtons();
+
+ moveFocusToDesktop();
+ vc.processNormalProtocol();
+
+ } catch (Exception e) {
+ e.printStackTrace();
+ fatalError(e.toString());
+ }
+
+ }
+
+
+ //
+ // Connect to the RFB server and authenticate the user.
+ //
+
+ void connectAndAuthenticate() throws IOException {
+
+ // The simplest case -- don't ask user a password, get it from the
+ // "PASSWORD" parameter instead. Authentication failures would be
+ // fatal.
+
+ if (passwordParam != null) {
+ if (inSeparateFrame) {
+ vncFrame.pack();
+ vncFrame.show();
+ } else {
+ validate();
+ }
+ if (!tryAuthenticate(passwordParam)) {
+ throw new IOException("VNC authentication failed");
+ }
+ return;
+ }
+
+ // There is no "PASSWORD" parameter -- ask user for a password,
+ // try to authenticate, retry on authentication failures.
+
+ GridBagConstraints gbc = new GridBagConstraints();
+ gbc.gridwidth = GridBagConstraints.REMAINDER;
+ gbc.anchor = GridBagConstraints.NORTHWEST;
+ gbc.weightx = 1.0;
+ gbc.weighty = 1.0;
+ gbc.ipadx = 100;
+ gbc.ipady = 50;
+ gridbag.setConstraints(authenticator, gbc);
+ vncContainer.add(authenticator);
+
+ if (inSeparateFrame) {
+ vncFrame.pack();
+ vncFrame.show();
+ } else {
+ validate();
+ // FIXME: here moveFocusToPasswordField() does not always work
+ // under Netscape 4.7x/Java 1.1.5/Linux. It seems like this call
+ // is being executed before the password field of the
+ // authenticator is fully drawn and activated, therefore
+ // requestFocus() does not work. Currently, I don't know how to
+ // solve this problem.
+ // -- const
+ authenticator.moveFocusToPasswordField();
+ }
+
+ while (true) {
+ // Wait for user entering a password.
+ synchronized(authenticator) {
+ try {
+ authenticator.wait();
+ } catch (InterruptedException e) {
+ }
+ }
+
+ // Try to authenticate with a given password.
+ if (tryAuthenticate(authenticator.password.getText()))
+ break;
+
+ // Retry on authentication failure.
+ authenticator.retry();
+ }
+
+ vncContainer.remove(authenticator);
+ }
+
+
+ //
+ // Try to authenticate with a given password.
+ //
+
+ boolean tryAuthenticate(String pw) throws IOException {
+
+ rfb = new RfbProto(host, port, this);
+
+ rfb.readVersionMsg();
+
+ System.out.println("RFB server supports protocol version " +
+ rfb.serverMajor + "." + rfb.serverMinor);
+
+ rfb.writeVersionMsg();
+
+ int authScheme = rfb.readAuthScheme();
+
+ switch (authScheme) {
+
+ case RfbProto.NoAuth:
+ System.out.println("No authentication needed");
+ return true;
+
+ case RfbProto.VncAuth:
+ byte[] challenge = new byte[16];
+ rfb.is.readFully(challenge);
+
+ if (pw.length() > 8)
+ pw = pw.substring(0, 8); // Truncate to 8 chars
+
+ byte[] key = {0, 0, 0, 0, 0, 0, 0, 0};
+ System.arraycopy(pw.getBytes(), 0, key, 0, pw.length());
+
+ DesCipher des = new DesCipher(key);
+
+ des.encrypt(challenge, 0, challenge, 0);
+ des.encrypt(challenge, 8, challenge, 8);
+
+ rfb.os.write(challenge);
+
+ int authResult = rfb.is.readInt();
+
+ switch (authResult) {
+ case RfbProto.VncAuthOK:
+ System.out.println("VNC authentication succeeded");
+ return true;
+ case RfbProto.VncAuthFailed:
+ System.out.println("VNC authentication failed");
+ break;
+ case RfbProto.VncAuthTooMany:
+ throw new IOException("VNC authentication failed - " +
+ "too many tries");
+ default:
+ throw new IOException("Unknown VNC authentication result " +
+ authResult);
+ }
+ break;
+
+ default:
+ throw new IOException("Unknown VNC authentication scheme " +
+ authScheme);
+ }
+ return false;
+ }
+
+
+ //
+ // Do the rest of the protocol initialisation.
+ //
+
+ void doProtocolInitialisation() throws IOException {
+
+ rfb.writeClientInit();
+
+ rfb.readServerInit();
+
+ System.out.println("Desktop name is " + rfb.desktopName);
+ System.out.println("Desktop size is " + rfb.framebufferWidth + " x " +
+ rfb.framebufferHeight);
+
+ setEncodings();
+ }
+
+
+ //
+ // Send current encoding list to the RFB server.
+ //
+
+ void setEncodings() {
+ try {
+ if (rfb != null && rfb.inNormalProtocol) {
+ rfb.writeSetEncodings(options.encodings, options.nEncodings);
+ if (vc != null) {
+ vc.softCursorFree();
+ }
+ }
+ } catch (Exception e) {
+ e.printStackTrace();
+ }
+ }
+
+
+ //
+ // setCutText() - send the given cut text to the RFB server.
+ //
+
+ void setCutText(String text) {
+ try {
+ if ((rfb != null) && rfb.inNormalProtocol) {
+ rfb.writeClientCutText(text);
+ }
+ } catch (Exception e) {
+ e.printStackTrace();
+ }
+ }
+
+
+ //
+ // readParameters() - read parameters from the html source or from the
+ // command line. On the command line, the arguments are just a sequence of
+ // param_name/param_value pairs where the names and values correspond to
+ // those expected in the html applet tag source.
+ //
+
+ public void readParameters() {
+ host = readParameter("HOST", !inAnApplet);
+ if (host == null) {
+ host = getCodeBase().getHost();
+ if (host.equals("")) {
+ fatalError("HOST parameter not specified");
+ }
+ }
+
+ String str = readParameter("PORT", true);
+ port = Integer.parseInt(str);
+
+ if (inAnApplet) {
+ str = readParameter("Open New Window", false);
+ if (str != null && str.equalsIgnoreCase("Yes"))
+ inSeparateFrame = true;
+ }
+
+ passwordParam = readParameter("PASSWORD", false);
+
+ // Fine tuning options.
+ deferScreenUpdates = readIntParameter("Defer screen updates", 20);
+ deferCursorUpdates = readIntParameter("Defer cursor updates", 10);
+ deferUpdateRequests = readIntParameter("Defer update requests", 50);
+ }
+
+ public String readParameter(String name, boolean required) {
+ if (inAnApplet) {
+ String s = getParameter(name);
+ if ((s == null) && required) {
+ fatalError(name + " parameter not specified");
+ }
+ return s;
+ }
+
+ for (int i = 0; i < mainArgs.length; i += 2) {
+ if (mainArgs[i].equalsIgnoreCase(name)) {
+ try {
+ return mainArgs[i+1];
+ } catch (Exception e) {
+ if (required) {
+ fatalError(name + " parameter not specified");
+ }
+ return null;
+ }
+ }
+ }
+ if (required) {
+ fatalError(name + " parameter not specified");
+ }
+ return null;
+ }
+
+ int readIntParameter(String name, int defaultValue) {
+ String str = readParameter(name, false);
+ int result = defaultValue;
+ if (str != null) {
+ try {
+ result = Integer.parseInt(str);
+ } catch (NumberFormatException e) { }
+ }
+ return result;
+ }
+
+ //
+ // moveFocusToDesktop() - move keyboard focus either to the
+ // VncCanvas or to the AuthPanel.
+ //
+
+ void moveFocusToDesktop() {
+ if (vncContainer != null) {
+ if (vc != null && vncContainer.isAncestorOf(vc)) {
+ vc.requestFocus();
+ } else if (vncContainer.isAncestorOf(authenticator)) {
+ authenticator.moveFocusToPasswordField();
+ }
+ }
+ }
+
+ //
+ // disconnect() - close connection to server.
+ //
+
+ public void disconnect() {
+ System.out.println("Disconnect");
+ options.dispose();
+ clipboard.dispose();
+
+ if (inAnApplet) {
+ vncContainer.removeAll();
+ if (rfb != null) {
+ rfb.close();
+ rfb = null;
+ }
+ Label errLabel = new Label("Disconnected");
+ errLabel.setFont(new Font("Helvetica", Font.PLAIN, 12));
+ vncContainer.setLayout(new FlowLayout(FlowLayout.LEFT, 30, 30));
+ vncContainer.add(errLabel);
+ if (inSeparateFrame) {
+ vncFrame.pack();
+ } else {
+ validate();
+ }
+ rfbThread.stop();
+ } else {
+ System.exit(0);
+ }
+ }
+
+ //
+ // fatalError() - print out a fatal error message.
+ //
+
+ public void fatalError(String str) {
+ System.out.println(str);
+
+ if (inAnApplet) {
+ vncContainer.removeAll();
+ if (rfb != null) {
+ rfb.close();
+ rfb = null;
+ }
+ Label errLabel = new Label(str);
+ errLabel.setFont(new Font("Helvetica", Font.PLAIN, 12));
+ vncContainer.setLayout(new FlowLayout(FlowLayout.LEFT, 30, 30));
+ vncContainer.add(errLabel);
+ if (inSeparateFrame) {
+ vncFrame.pack();
+ } else {
+ validate();
+ }
+ Thread.currentThread().stop();
+ } else {
+ System.exit(1);
+ }
+ }
+
+
+ //
+ // This method is called before the applet is destroyed.
+ //
+
+ public void destroy() {
+ vncContainer.removeAll();
+ options.dispose();
+ clipboard.dispose();
+ if (rfb != null) {
+ rfb.close();
+ }
+ if (inSeparateFrame) {
+ vncFrame.dispose();
+ }
+ }
+
+
+ //
+ // Close application properly on window close event.
+ //
+
+ public void windowClosing(WindowEvent evt) {
+ if (rfb != null)
+ disconnect();
+
+ vncFrame.dispose();
+ if (!inAnApplet) {
+ System.exit(0);
+ }
+ }
+
+ //
+ // Move the keyboard focus to the password field on window activation.
+ //
+
+ public void windowActivated(WindowEvent evt) {
+ if (vncFrame.isAncestorOf(authenticator))
+ authenticator.moveFocusToPasswordField();
+ }
+
+ //
+ // Ignore window events we're not interested in.
+ //
+
+ public void windowDeactivated (WindowEvent evt) {}
+ public void windowOpened(WindowEvent evt) {}
+ public void windowClosed(WindowEvent evt) {}
+ public void windowIconified(WindowEvent evt) {}
+ public void windowDeiconified(WindowEvent evt) {}
+}
+++ /dev/null
-//
-// Copyright (C) 2001,2002 HorizonLive.com, Inc. All Rights Reserved.
-// Copyright (C) 1999 AT&T Laboratories Cambridge. All Rights Reserved.
-//
-// This is free software; you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation; either version 2 of the License, or
-// (at your option) any later version.
-//
-// This software 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 for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with this software; if not, write to the Free Software
-// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
-// USA.
-//
-
-//
-// VncViewer.java - the VNC viewer applet. This class mainly just sets up the
-// user interface, leaving it to the VncCanvas to do the actual rendering of
-// a VNC desktop.
-//
-
-import java.awt.*;
-import java.awt.event.*;
-import java.io.*;
-
-public class VncViewer extends java.applet.Applet
- implements java.lang.Runnable, WindowListener {
-
- boolean inAnApplet = true;
- boolean inSeparateFrame = false;
-
- //
- // main() is called when run as a java program from the command line.
- // It simply runs the applet inside a newly-created frame.
- //
-
- public static void main(String[] argv) {
- VncViewer v = new VncViewer();
- v.mainArgs = argv;
- v.inAnApplet = false;
- v.inSeparateFrame = true;
-
- v.init();
- v.start();
- }
-
- String[] mainArgs;
-
- RfbProto rfb;
- Thread rfbThread;
-
- Frame vncFrame;
- Container vncContainer;
- ScrollPane desktopScrollPane;
- GridBagLayout gridbag;
- ButtonPanel buttonPanel;
- AuthPanel authenticator;
- VncCanvas vc;
- OptionsFrame options;
- ClipboardFrame clipboard;
-
- // Variables read from parameter values.
- String host;
- int port;
- String passwordParam;
- int deferScreenUpdates;
- int deferCursorUpdates;
- int deferUpdateRequests;
-
-
- //
- // init()
- //
-
- public void init() {
-
- readParameters();
-
- if (inSeparateFrame) {
- vncFrame = new Frame("TightVNC");
- if (!inAnApplet) {
- vncFrame.add("Center", this);
- }
- vncContainer = vncFrame;
- } else {
- vncContainer = this;
- }
-
- options = new OptionsFrame(this);
- clipboard = new ClipboardFrame(this);
- authenticator = new AuthPanel();
-
- if (inSeparateFrame)
- vncFrame.addWindowListener(this);
-
- rfbThread = new Thread(this);
- rfbThread.start();
- }
-
- public void update(Graphics g) {
- }
-
- //
- // run() - executed by the rfbThread to deal with the RFB socket.
- //
-
- public void run() {
-
- gridbag = new GridBagLayout();
- vncContainer.setLayout(gridbag);
-
- GridBagConstraints gbc = new GridBagConstraints();
- gbc.gridwidth = GridBagConstraints.REMAINDER;
- gbc.anchor = GridBagConstraints.NORTHWEST;
-
- if (options.showControls) {
- buttonPanel = new ButtonPanel(this);
- buttonPanel.setLayout(new FlowLayout(FlowLayout.LEFT, 0, 0));
- gridbag.setConstraints(buttonPanel, gbc);
- vncContainer.add(buttonPanel);
- }
-
- try {
- connectAndAuthenticate();
-
- doProtocolInitialisation();
-
- vc = new VncCanvas(this);
- gbc.weightx = 1.0;
- gbc.weighty = 1.0;
-
- if (inSeparateFrame) {
-
- // Create a panel which itself is resizeable and can hold
- // non-resizeable VncCanvas component at the top left corner.
- Panel canvasPanel = new Panel();
- canvasPanel.setLayout(new FlowLayout(FlowLayout.LEFT, 0, 0));
- canvasPanel.add(vc);
-
- // Create a ScrollPane which will hold a panel with VncCanvas
- // inside.
- desktopScrollPane = new ScrollPane(ScrollPane.SCROLLBARS_AS_NEEDED);
- gbc.fill = GridBagConstraints.BOTH;
- gridbag.setConstraints(desktopScrollPane, gbc);
- desktopScrollPane.add(canvasPanel);
-
- // Finally, add our ScrollPane to the Frame window.
- vncFrame.add(desktopScrollPane);
- vncFrame.setTitle(rfb.desktopName);
- vncFrame.pack();
- vc.resizeDesktopFrame();
-
- } else {
-
- // Just add the VncCanvas component to the Applet.
- gridbag.setConstraints(vc, gbc);
- add(vc);
- validate();
-
- }
-
- if (options.showControls)
- buttonPanel.enableButtons();
-
- moveFocusToDesktop();
- vc.processNormalProtocol();
-
- } catch (Exception e) {
- e.printStackTrace();
- fatalError(e.toString());
- }
-
- }
-
-
- //
- // Connect to the RFB server and authenticate the user.
- //
-
- void connectAndAuthenticate() throws IOException {
-
- // The simplest case -- don't ask user a password, get it from the
- // "PASSWORD" parameter instead. Authentication failures would be
- // fatal.
-
- if (passwordParam != null) {
- if (inSeparateFrame) {
- vncFrame.pack();
- vncFrame.show();
- } else {
- validate();
- }
- if (!tryAuthenticate(passwordParam)) {
- throw new IOException("VNC authentication failed");
- }
- return;
- }
-
- // There is no "PASSWORD" parameter -- ask user for a password,
- // try to authenticate, retry on authentication failures.
-
- GridBagConstraints gbc = new GridBagConstraints();
- gbc.gridwidth = GridBagConstraints.REMAINDER;
- gbc.anchor = GridBagConstraints.NORTHWEST;
- gbc.weightx = 1.0;
- gbc.weighty = 1.0;
- gbc.ipadx = 100;
- gbc.ipady = 50;
- gridbag.setConstraints(authenticator, gbc);
- vncContainer.add(authenticator);
-
- if (inSeparateFrame) {
- vncFrame.pack();
- vncFrame.show();
- } else {
- validate();
- // FIXME: here moveFocusToPasswordField() does not always work
- // under Netscape 4.7x/Java 1.1.5/Linux. It seems like this call
- // is being executed before the password field of the
- // authenticator is fully drawn and activated, therefore
- // requestFocus() does not work. Currently, I don't know how to
- // solve this problem.
- // -- const
- authenticator.moveFocusToPasswordField();
- }
-
- while (true) {
- // Wait for user entering a password.
- synchronized(authenticator) {
- try {
- authenticator.wait();
- } catch (InterruptedException e) {
- }
- }
-
- // Try to authenticate with a given password.
- if (tryAuthenticate(authenticator.password.getText()))
- break;
-
- // Retry on authentication failure.
- authenticator.retry();
- }
-
- vncContainer.remove(authenticator);
- }
-
-
- //
- // Try to authenticate with a given password.
- //
-
- boolean tryAuthenticate(String pw) throws IOException {
-
- rfb = new RfbProto(host, port, this);
-
- rfb.readVersionMsg();
-
- System.out.println("RFB server supports protocol version " +
- rfb.serverMajor + "." + rfb.serverMinor);
-
- rfb.writeVersionMsg();
-
- int authScheme = rfb.readAuthScheme();
-
- switch (authScheme) {
-
- case RfbProto.NoAuth:
- System.out.println("No authentication needed");
- return true;
-
- case RfbProto.VncAuth:
- byte[] challenge = new byte[16];
- rfb.is.readFully(challenge);
-
- if (pw.length() > 8)
- pw = pw.substring(0, 8); // Truncate to 8 chars
-
- byte[] key = {0, 0, 0, 0, 0, 0, 0, 0};
- System.arraycopy(pw.getBytes(), 0, key, 0, pw.length());
-
- DesCipher des = new DesCipher(key);
-
- des.encrypt(challenge, 0, challenge, 0);
- des.encrypt(challenge, 8, challenge, 8);
-
- rfb.os.write(challenge);
-
- int authResult = rfb.is.readInt();
-
- switch (authResult) {
- case RfbProto.VncAuthOK:
- System.out.println("VNC authentication succeeded");
- return true;
- case RfbProto.VncAuthFailed:
- System.out.println("VNC authentication failed");
- break;
- case RfbProto.VncAuthTooMany:
- throw new IOException("VNC authentication failed - " +
- "too many tries");
- default:
- throw new IOException("Unknown VNC authentication result " +
- authResult);
- }
- break;
-
- default:
- throw new IOException("Unknown VNC authentication scheme " +
- authScheme);
- }
- return false;
- }
-
-
- //
- // Do the rest of the protocol initialisation.
- //
-
- void doProtocolInitialisation() throws IOException {
-
- rfb.writeClientInit();
-
- rfb.readServerInit();
-
- System.out.println("Desktop name is " + rfb.desktopName);
- System.out.println("Desktop size is " + rfb.framebufferWidth + " x " +
- rfb.framebufferHeight);
-
- setEncodings();
- }
-
-
- //
- // Send current encoding list to the RFB server.
- //
-
- void setEncodings() {
- try {
- if (rfb != null && rfb.inNormalProtocol) {
- rfb.writeSetEncodings(options.encodings, options.nEncodings);
- if (vc != null) {
- vc.softCursorFree();
- }
- }
- } catch (Exception e) {
- e.printStackTrace();
- }
- }
-
-
- //
- // setCutText() - send the given cut text to the RFB server.
- //
-
- void setCutText(String text) {
- try {
- if ((rfb != null) && rfb.inNormalProtocol) {
- rfb.writeClientCutText(text);
- }
- } catch (Exception e) {
- e.printStackTrace();
- }
- }
-
-
- //
- // readParameters() - read parameters from the html source or from the
- // command line. On the command line, the arguments are just a sequence of
- // param_name/param_value pairs where the names and values correspond to
- // those expected in the html applet tag source.
- //
-
- public void readParameters() {
- host = readParameter("HOST", !inAnApplet);
- if (host == null) {
- host = getCodeBase().getHost();
- if (host.equals("")) {
- fatalError("HOST parameter not specified");
- }
- }
-
- String str = readParameter("PORT", true);
- port = Integer.parseInt(str);
-
- if (inAnApplet) {
- str = readParameter("Open New Window", false);
- if (str != null && str.equalsIgnoreCase("Yes"))
- inSeparateFrame = true;
- }
-
- passwordParam = readParameter("PASSWORD", false);
-
- // Fine tuning options.
- deferScreenUpdates = readIntParameter("Defer screen updates", 20);
- deferCursorUpdates = readIntParameter("Defer cursor updates", 10);
- deferUpdateRequests = readIntParameter("Defer update requests", 50);
- }
-
- public String readParameter(String name, boolean required) {
- if (inAnApplet) {
- String s = getParameter(name);
- if ((s == null) && required) {
- fatalError(name + " parameter not specified");
- }
- return s;
- }
-
- for (int i = 0; i < mainArgs.length; i += 2) {
- if (mainArgs[i].equalsIgnoreCase(name)) {
- try {
- return mainArgs[i+1];
- } catch (Exception e) {
- if (required) {
- fatalError(name + " parameter not specified");
- }
- return null;
- }
- }
- }
- if (required) {
- fatalError(name + " parameter not specified");
- }
- return null;
- }
-
- int readIntParameter(String name, int defaultValue) {
- String str = readParameter(name, false);
- int result = defaultValue;
- if (str != null) {
- try {
- result = Integer.parseInt(str);
- } catch (NumberFormatException e) { }
- }
- return result;
- }
-
- //
- // moveFocusToDesktop() - move keyboard focus either to the
- // VncCanvas or to the AuthPanel.
- //
-
- void moveFocusToDesktop() {
- if (vncContainer != null) {
- if (vc != null && vncContainer.isAncestorOf(vc)) {
- vc.requestFocus();
- } else if (vncContainer.isAncestorOf(authenticator)) {
- authenticator.moveFocusToPasswordField();
- }
- }
- }
-
- //
- // disconnect() - close connection to server.
- //
-
- public void disconnect() {
- System.out.println("Disconnect");
- options.dispose();
- clipboard.dispose();
-
- if (inAnApplet) {
- vncContainer.removeAll();
- if (rfb != null) {
- rfb.close();
- rfb = null;
- }
- Label errLabel = new Label("Disconnected");
- errLabel.setFont(new Font("Helvetica", Font.PLAIN, 12));
- vncContainer.setLayout(new FlowLayout(FlowLayout.LEFT, 30, 30));
- vncContainer.add(errLabel);
- if (inSeparateFrame) {
- vncFrame.pack();
- } else {
- validate();
- }
- rfbThread.stop();
- } else {
- System.exit(0);
- }
- }
-
- //
- // fatalError() - print out a fatal error message.
- //
-
- public void fatalError(String str) {
- System.out.println(str);
-
- if (inAnApplet) {
- vncContainer.removeAll();
- if (rfb != null) {
- rfb.close();
- rfb = null;
- }
- Label errLabel = new Label(str);
- errLabel.setFont(new Font("Helvetica", Font.PLAIN, 12));
- vncContainer.setLayout(new FlowLayout(FlowLayout.LEFT, 30, 30));
- vncContainer.add(errLabel);
- if (inSeparateFrame) {
- vncFrame.pack();
- } else {
- validate();
- }
- Thread.currentThread().stop();
- } else {
- System.exit(1);
- }
- }
-
-
- //
- // This method is called before the applet is destroyed.
- //
-
- public void destroy() {
- vncContainer.removeAll();
- options.dispose();
- clipboard.dispose();
- if (rfb != null) {
- rfb.close();
- }
- if (inSeparateFrame) {
- vncFrame.dispose();
- }
- }
-
-
- //
- // Close application properly on window close event.
- //
-
- public void windowClosing(WindowEvent evt) {
- if (rfb != null)
- disconnect();
-
- vncFrame.dispose();
- if (!inAnApplet) {
- System.exit(0);
- }
- }
-
- //
- // Move the keyboard focus to the password field on window activation.
- //
-
- public void windowActivated(WindowEvent evt) {
- if (vncFrame.isAncestorOf(authenticator))
- authenticator.moveFocusToPasswordField();
- }
-
- //
- // Ignore window events we're not interested in.
- //
-
- public void windowDeactivated (WindowEvent evt) {}
- public void windowOpened(WindowEvent evt) {}
- public void windowClosed(WindowEvent evt) {}
- public void windowIconified(WindowEvent evt) {}
- public void windowDeiconified(WindowEvent evt) {}
-}
projects / tigervnc.git / commitdiff