Detecting Applet or Application environment - Grabbing applet context?

Is there a simple way of detecting whether or not your SimpleApplication is running as an applet (via AppletHarness) or as an application? This is important when you want to open a web page from within a program for example.



Detection of the context could be handled by subclassing your SimpleApplication into two classes, only one of which would be passed to the AppletHarness - so this is good. However, how can you grab the Applet context from within your SimpleApplication?

Set a global variable from the applet harness?

Thanks @normen, however, I’ve got this one working as follows:



pre type="php"
// This is your SimpleApplication, possible “this”


Application app = …





// Now find out if we are in the applet or application


Applet a = AppletHarness.getApplet(app);


if (a != null) {


   // Do the applet stuff on your applet “a”


} else {


   // Do the application stuff on “System” and “Runtime”


}
/pre

Please post your solutions if you have any…

No problems. My particular problems was to open a URL regardless of whether this is in the applet or application context. Here is a solution which relies on the AppletHarness keeping a static final HashMap cross-referencing applications and the applets. Here it is:



pre type="php"
package com.your.package;





import com.jme3.app.Application;


import com.jme3.app.AppletHarness;


import java.applet.Applet;


import java.lang.reflect.Method;


import java.net.MalformedURLException;


import java.net.URL;


import javax.swing.JOptionPane;





public class BrowserLauncher {





    private static final String errMsgBrowser = “Error attempting to launch web browser”;


    private static final String errMsgURL = “Error attempting to use bad URL”;





    public static void openURL(String urlStr, Application app) {


        String osName = System.getProperty(“os.name”);


        Applet a = AppletHarness.getApplet(app);


        if (a != null) {


            try {


                URL url = new URL(urlStr);


                a.getAppletContext().showDocument(url, “_new”);


            } catch (MalformedURLException e) {


                JOptionPane.showMessageDialog(null, errMsgURL + “:n” + e.getLocalizedMessage());


            }


        } else {


            try {


                if (osName.startsWith(“Mac OS”)) {


                    Class fileMgr = Class.forName(“com.apple.eio.FileManager”);


                    Method openURL = fileMgr.getDeclaredMethod(“openURL”,


                                    new Class[] {String.class});


                    openURL.invoke(null, new Object[] {urlStr});


                }


                else if (osName.startsWith(“Windows”))


                    Runtime.getRuntime().exec("rundll32 url.dll,FileProtocolHandler " + urlStr);


                else { //assume Unix or Linux


                    String[] browsers = {


                    “firefox”, “opera”, “konqueror”, “epiphany”, “mozilla”, “netscape”, “chrome”};


                    String browser = null;


                    for (int count = 0; count < browsers.length && browser == null; count++)


                        if (Runtime.getRuntime().exec(


                        new String[] {“which”, browsers[count]}).waitFor() == 0)


                        browser = browsers[count];


                    if (browser == null)


                        throw new Exception(“Could not find web browser”);


                    else


                    Runtime.getRuntime().exec(new String[] {browser, urlStr});


                }


            }catch (Exception e) {


                JOptionPane.showMessageDialog(null, errMsgBrowser + “:n” + e.getLocalizedMessage());


            }


        }


    }


}
/pre

I meant without asking, just like the 3rd post minus my post before :wink: