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/* SplashUtils.java
Copyright (C) 2012 Red Hat, Inc.

This file is part of IcedTea.

IcedTea 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, or (at your option)
any later version.

IcedTea 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 IcedTea; see the file COPYING.  If not, write to the
Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301 USA.

Linking this library statically or dynamically with other modules is
making a combined work based on this library.  Thus, the terms and
conditions of the GNU General Public License cover the whole
combination.

As a special exception, the copyright holders of this library give you
permission to link this library with independent modules to produce an
executable, regardless of the license terms of these independent
modules, and to copy and distribute the resulting executable under
terms of your choice, provided that you also meet, for each linked
independent module, the terms and conditions of the license of that
module.  An independent module is a module which is not derived from
or based on this library.  If you modify this library, you may extend
this exception to your version of the library, but you are not
obligated to do so.  If you do not wish to do so, delete this
exception statement from your version. */
package net.sourceforge.jnlp.splashscreen;

import jogamp.plugin.jnlp.runtime.Applet3Environment;
import jogamp.plugin.jnlp.runtime.Applet3Instance;
import net.sourceforge.jnlp.runtime.AppletEnvironment;
import net.sourceforge.jnlp.runtime.AppletInstance;
import net.sourceforge.jnlp.runtime.Boot;
import net.sourceforge.jnlp.runtime.JNLPRuntime;
import net.sourceforge.jnlp.splashscreen.impls.*;
import net.sourceforge.jnlp.util.logging.OutputController;

public class SplashUtils {

    static final String ICEDTEA_WEB_PLUGIN_SPLASH = "ICEDTEA_WEB_PLUGIN_SPLASH";
    static final String ICEDTEA_WEB_SPLASH = "ICEDTEA_WEB_SPLASH";
    static final String NONE = "none";
    static final String DEFAULT = "default";


    /**
     *
     * Indicator whether to show icedtea-web plugin or just icedtea-web
     * For "just icedtea-web" will be done  an attempt to show content of
     * information element 
     *
     */
    public static enum SplashReason {

        APPLET, JAVAWS;

        @Override
        public String toString() {
            switch (this) {
                case APPLET:
                    return "IcedTea-Web Plugin";
                case JAVAWS:
                    return "IcedTea-Web";
            }
            return "unknown";
        }
    }

    public static void showErrorCaught(Throwable ex, AppletInstance appletInstance) {
        try {
            showError(ex, appletInstance);
        } catch (Throwable t) {
                // prinitng this exception is discutable. I have let it in for case that
                //some retyping will fail
                OutputController.getLogger().log(t);
        }
    }
    public static void showErrorCaught(Throwable ex, Applet3Instance appletInstance) {
        try {
            showError(ex, appletInstance);
        } catch (Throwable t) {
            // prinitng this exception is discutable. I have let it in for case that
            //some retyping will fail
            OutputController.getLogger().log(t);
        }
    }

    public static void showError(Throwable ex, AppletInstance appletInstance) {
        if (appletInstance == null) {
            OutputController.getLogger().log(ex);
            return;
        }
        AppletEnvironment ae = appletInstance.getAppletEnvironment();
        showError(ex, ae);
    }
    public static void showError(Throwable ex, Applet3Instance appletInstance) {
        if (appletInstance == null) {
            OutputController.getLogger().log(ex);
            return;
        }
        Applet3Environment ae = appletInstance.getAppletEnvironment();
        showError(ex, ae);
    }

    public static void showError(Throwable ex, AppletEnvironment ae) {
        if (ae == null) {
            OutputController.getLogger().log(ex);
            return;
        }
        SplashController p = ae.getSplashControler();
        showError(ex, p);
    }
    public static void showError(Throwable ex, Applet3Environment ae) {
        if (ae == null) {
            OutputController.getLogger().log(ex);
            return;
        }
        SplashController p = ae.getSplashControler();
        showError(ex, p);
    }

    public static void showError(Throwable ex, SplashController f) {
        if (f == null) {
            OutputController.getLogger().log(ex);
            return;
        }

        f.replaceSplash(getErrorSplashScreen(f.getSplashWidth(), f.getSplashHeigth(), ex));
    }

    
    private static SplashReason getReason() {
        if (JNLPRuntime.isWebstartApplication()){
            return SplashReason.JAVAWS;
        }else{
            return SplashReason.APPLET;
        }
        
    }
    

    /**
     * Warrning - splash should have recieve width and height without borders.
     * plugin's window have NO border, but javaws window HAVE border. This msut be calcualted prior calling this method
     * @param width
     * @param height
     * @return
     */
    public static SplashPanel getSplashScreen(int width, int height) {
        return getSplashScreen(width, height, getReason());
    }

    /**
     * Warrning - splash should have recieve width and height without borders.
     * plugin's window have NO border, but javaws window HAVE border. This msut be calcualted prior calling this method
     * @param width
     * @param height
     * @param  ex - exception to be shown if any
     * @return
     */
    public static SplashErrorPanel getErrorSplashScreen(int width, int height, Throwable ex) {
        return getErrorSplashScreen(width, height, getReason(), ex);
    }

    /**
     * Warrning - splash should have recieve width and height without borders.
     * plugin's window have NO border, but javaws window HAVE border. This msut be calcualted prior calling this method
     * @param width
     * @param height
     * @param splashReason
     * @return
     */
    static SplashPanel getSplashScreen(int width, int height, SplashUtils.SplashReason splashReason) {
        return getSplashScreen(width, height, splashReason, null, false);
    }

    /**
     * Warrning - splash should have recieve width and height without borders.
     * plugin's window have NO border, but javaws window HAVE border. This msut be calcualted prior calling this method
     * @param width
     * @param height
     * @param splashReason
     * @return
     */
    static SplashErrorPanel getErrorSplashScreen(int width, int height, SplashUtils.SplashReason splashReason, Throwable ex) {
        return (SplashErrorPanel) getSplashScreen(width, height, splashReason, ex, true);
    }

    static SplashPanel getSplashScreen(int width, int height, SplashUtils.SplashReason splashReason, Throwable loadingException, boolean isError) {
        String splashEnvironmetVar = null;
        String pluginSplashEnvironmetVar = null;
        try {
            pluginSplashEnvironmetVar = System.getenv(ICEDTEA_WEB_PLUGIN_SPLASH);
            splashEnvironmetVar = System.getenv(ICEDTEA_WEB_SPLASH);
        } catch (Exception ex) {
            OutputController.getLogger().log(OutputController.Level.ERROR_ALL, ex);
        }
        SplashPanel sp = null;
        if (SplashReason.JAVAWS.equals(splashReason)) {
            if (NONE.equals(splashEnvironmetVar)) {
                return null;
            }
            if (DEFAULT.equals(splashEnvironmetVar)) {
                if (isError) {
                    sp = new DefaultErrorSplashScreen2012(width, height, splashReason, loadingException);
                } else {
                    sp = new DefaultSplashScreen2012(width, height, splashReason);
                }
            }
        }
        if (SplashReason.APPLET.equals(splashReason)) {
            if (NONE.equals(pluginSplashEnvironmetVar)) {
                return null;
            }
            if (DEFAULT.equals(pluginSplashEnvironmetVar)) {
                if (isError) {
                    sp = new DefaultErrorSplashScreen2012(width, height, splashReason, loadingException);
                } else {
                    sp = new DefaultSplashScreen2012(width, height, splashReason);
                }
            }
        }
        if (isError) {
            sp = new DefaultErrorSplashScreen2012(width, height, splashReason, loadingException);
        } else {
            sp = new DefaultSplashScreen2012(width, height, splashReason);
        }
        sp.setVersion(Boot.version);
        return sp;
    }
}