source: trunk/gsdl3/src/java/org/greenstone/server/BrowserLauncher.java@ 13229

package org.greenstone.server;

import org.greenstone.gsdl3.util.Misc;


public class BrowserLauncher 
    extends Thread {
    
    private Process process = null;
    /** The initial command string given to this sub-process. */
    private String command = null;
    private String url = null;
    private String[] commands = null;

    public BrowserLauncher(String url) {
    this.url = url;
    setBrowserCommand();
    System.err.println("new browser launcher");
    printArray(commands);
    }

    // we should try and use settings from the settings panel??
    protected void setBrowserCommand() {

    // Try from a config setting??

    if(Misc.isWindows()) {
        // we use cmd and start
        if (Misc.isWindows9x()) {
        this.commands = StaticStrings.WIN_9X_OPEN_COMMAND;//"command.com /c start \""+url+"\"";
        } else {
        this.commands = StaticStrings.WIN_OPEN_COMMAND;//"cmd.exe /c start \"\" \""+url+"\"";
        }
    } else if (Misc.isMac()) {
        this.commands = StaticStrings.MAC_OPEN_COMMAND; // "open %1"
    } else {
        // try mozilla for now
        this.commands = new String [] {"mozilla", "%1"};
//      // we try to look for a browser
//      String [] browsers = new String [] {"mozilla", "netscape"};
//      for (int i=0; i<browsers.length; i++) {
//      if (isAvailable(browsers[i])) {
//          command = browsers[i]+ " %1";
//          break;
//      }
//      }
    }

    for (int i=0; i<commands.length; i++) {
        if (commands[i].equals("%1")) {
        commands[i] = url;
        break;
        }
    }

    
    }

//     protected boolean isAvailable(String program) {
//  try {
//      ExternalProgram e = new ExternalProgram("which", program);
//      e.exitProgram();
//      String out = e.getLineOfProgramOutput();
//      if (out == null) {
//      return false;
//      }
//      return true;
//  } catch (Exception exc) {
//      return false;
//  }
//     }

    /** We start the child process inside a new thread so it doesn't block the rest of Gatherer.
     * @see java.lang.Exception
     * @see java.lang.Process
     * @see java.lang.Runtime
     * @see java.lang.System
     * @see java.util.Vector
     */
    public void run() {
    System.err.println("in run method");
    // Call an external process using the args.
    if(commands == null) {
        //apps.remove(this);
        return;
    }
    try {
        String prog_name = commands[0];
        String lower_name = prog_name.toLowerCase();
        if (lower_name.indexOf("mozilla") != -1 || lower_name.indexOf("netscape") != -1) { 
        System.err.println("found mozilla or netscape, trying remote it");
        // mozilla and netscape, try using a remote command to get things in the same window
        String [] new_commands = new String[] {prog_name, "-raise", "-remote", "openURL("+url+",new-tab)"};
        printArray(new_commands);

        Runtime rt = Runtime.getRuntime();
        process = rt.exec(new_commands);
        int exitCode = process.waitFor();
        if (exitCode != 0) { // if Netscape or mozilla was not open
            System.err.println("couldn't do remote, trying original command");
            printArray(commands);
            process = rt.exec(commands); // try the original command
        }
        } else {
        // just run what we have been given
        StringBuffer whole_command = new StringBuffer();
        for(int i = 0; i < commands.length; i++) {
            whole_command.append(commands[i]);
            whole_command.append(" ");
        }
        System.err.println("Running " + whole_command.toString());
        Runtime rt = Runtime.getRuntime();
        process = rt.exec(commands);
        process.waitFor();
        }
    }
        
    catch (Exception exception) {
        exception.printStackTrace();
    }
    // Remove ourself from Gatherer list of threads.
    //apps.remove(this);
    // Call exit if we were the last outstanding child process thread.
    //if (apps.size() == 0 && exit == true) {
    //    System.exit(exit_status);
    //}
    }
    public void printArray(String [] array) {
    for(int i = 0; i < array.length; i++) {
        System.err.println(array[i]+" ");
    }
    }
    public void stopBrowserApplication() {
    if(process != null) {
        process.destroy();
    }
    }

}