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/*
*
* Copyright (C) 1999, Institute for MicroTherapy
*
* This software and supporting documentation were developed by
*
* University of Witten/Herdecke
* Department of Radiology and MicroTherapy
* Institute for MicroTherapy
* Medical computer science
*
* Universitaetsstrasse 142
* 44799 Bochum, Germany
*
* http://www.microtherapy.de/go/cs
* mailto:computer.science@microtherapy.de
*
* THIS SOFTWARE IS MADE AVAILABLE, AS IS, AND THE INSTITUTE MAKES NO
* WARRANTY REGARDING THE SOFTWARE, ITS PERFORMANCE, ITS MERCHANTABILITY
* OR FITNESS FOR ANY PARTICULAR USE, FREEDOM FROM ANY COMPUTER DISEASES
* OR ITS CONFORMITY TO ANY SPECIFICATION. THE ENTIRE RISK AS TO QUALITY
* AND PERFORMANCE OF THE SOFTWARE IS WITH THE USER.
*
* Author : $Author: kleber $
* Last update : $Date: 2001/06/06 10:32:29 $
* Revision : $Revision: 1.1.1.1 $
* State: $State: Exp $
*/
package about;
import java.io.*;
/**
* Display a file in the system browser. If you want to display a
* file, you must include the absolute path name.
* @param url the file's url (the url must start with either "http://" or
* "file://").
*
* Examples:
*
* BrowserControl.displayURL("http://www.javaworld.com")
* BrowserControl.displayURL("file://c:\\docs\\index.html")
* BrowserContorl.displayURL("file:///user/joe/index.html");
*
* @author Andreas Schroeter
* @since 30.03
*/
public class BrowserControl
{
/**
* calls the default web browser with the given url.
*
* @param url call browser with this url
* @since 30.03
*/
public static void displayURL(String url)
{
boolean windows = isWindowsPlatform();
String cmd = null;
try
{
if (windows)
{
// cmd = 'rundll32 url.dll,FileProtocolHandler http://...'
cmd = WIN_PATH + " " + WIN_FLAG + " " + url;
Process p = Runtime.getRuntime().exec(cmd);
}
else
{
// Under Unix, Netscape has to be running for the "-remote"
// command to work. So, we try sending the command and
// check for an exit value. If the exit command is 0,
// it worked, otherwise we need to start the browser.
// cmd = 'netscape -remote openURL(http://www.javaworld.com)'
cmd = UNIX_PATH + " " + UNIX_FLAG + "(" + url + ")";
Process p = Runtime.getRuntime().exec(cmd);
try
{
// wait for exit code -- if it's 0, command worked,
// otherwise we need to start the browser up.
int exitCode = p.waitFor();
if (exitCode != 0)
{
// Command failed, start up the browser
// cmd = 'netscape http://www.javaworld.com'
cmd = UNIX_PATH + " " + url;
p = Runtime.getRuntime().exec(cmd);
}
}
catch(InterruptedException x)
{
System.err.println("Error Bringing up Browser, cmd='" +
cmd + "'");
System.err.println("Caught: " + x);
}
}
}
catch(IOException x)
{
// couldn't exec browser
System.err.println("Could not invoke browser, command=" + cmd);
System.err.println("Caught: " + x);
}
}
/**
* Try to determine whether this application is running under Windows
* or some other platform by examing the "os.name" property.
*
* @return true if this application is running under a Windows OS
* @since 30.03
*/
public static boolean isWindowsPlatform()
{
String os = System.getProperty("os.name");
if ( os != null && os.startsWith(WIN_ID))
return true;
else
return false;
}
// Used to identify the windows platform.
private static final String WIN_ID = "Windows";
// The default system browser under windows.
private static final String WIN_PATH = "rundll32";
// The flag to display a url.
private static final String WIN_FLAG = "url.dll,FileProtocolHandler";
// The default browser under unix.
private static final String UNIX_PATH = "netscape";
// The flag to display a url.
private static final String UNIX_FLAG = "-remote openURL";
}
/*
* CVS Log
* $Log: BrowserControl.java,v $
* Revision 1.1.1.1 2001/06/06 10:32:29 kleber
* Init commit for DICOMscope 3.5
* Create new CVS
*
*/
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