/*

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description: Java side Core UI accessor.

*

*/

package com.nokia.mj.impl.coreuiavkon;

import java.util.Hashtable;

import com.nokia.mj.impl.utils.Uid;

import com.nokia.mj.impl.utils.Logger;

import com.nokia.mj.impl.rt.support.Jvm;

import com.nokia.mj.impl.rt.support.ApplicationUtils;

import com.nokia.mj.impl.rt.support.ApplicationInfo;

import com.nokia.mj.impl.coreui.CoreUi;

/**

 * A gate to CoreUi Avkon implementation.

 */

public class CoreUiImpl extends CoreUi

{

    public static final int OrientationUndefined = 0;

    public static final int OrientationPortrait  = 1;

    public static final int OrientationLandscape = 2;

    public static final int ScreenModeNoStartScreen       = 0;

    public static final int ScreenModeDefaultStartScreen  = 1;

    public static final int ScreenModeMidletDefinedScreen = 2;

    public CoreUiImpl()

    {

        // Load the native.

        Jvm.loadSystemLibrary("javacoreui");

    }

    /**

     * Connects to the already created CoreUi.

     * @return permission to start the application. There is a small time

     *         window where user is able to cancel the application

     *         start. In this case the CoreUi stores the request and

     *         informs the caller of this method that the application

     *         should not be started.

     */

    protected boolean connectToUiImpl()

    {

        return _connect();

    }

    /**

     * For creating the UI from Java side. This is meant for the pre-warmed

     * VM use case. Calling this method will lead creation of the CoreUI.

     * @param uid The UID of the application.

     * @param backGroundStart Should the UI be put into background.

     */

    protected void createUiImpl(Uid uid, boolean backGroundStart)

    {

        int selectedOrientation = OrientationUndefined;

        int selectedScreenMode  = ScreenModeDefaultStartScreen;

        ApplicationInfo appInfo = ApplicationInfo.getInstance();

        String rootPath = appInfo.getRootPath();

        String orientation = appInfo.getAttribute("Nokia-MIDlet-App-Orientation");

        if (orientation != null)

        {

            if (orientation.toLowerCase().equals("portrait"))

            {

                selectedOrientation = OrientationPortrait;

            }

            else if (orientation.toLowerCase().equals("landscape"))

            {

                selectedOrientation = OrientationLandscape;

            }

        }

        if (splashScreenImg != null)

        {

            if (splashScreenImg.toLowerCase().equals("suppress"))

            {

                selectedScreenMode = ScreenModeNoStartScreen;

                backGroundStart = true;

            }

            else

            {

                selectedScreenMode = ScreenModeMidletDefinedScreen;

            }

        }

        if (!_createUi(uid.toString(), selectedOrientation, selectedScreenMode,

                       rootPath, backGroundStart))

        {

            Logger.LOG(Logger.EJavaUI, Logger.EInfo, "JAVA createUiImpl Error");

            throw new RuntimeException("Core UI creation failed!");

        }

    }

    /**

     * For asking the runtime to do the shutdown of the application.

     */

    protected void shutdownRequestImpl()

    {

        ApplicationUtils.getInstance().notifyExitCmd();

    }

    /**

     * For asking the runtime to bring the application to foreground.

     */

    protected void foregroundRequestImpl()

    {

        _toForeground();

    }

    /**

     * For asking if the UI is in foreground.

     */

    protected boolean isUiInForegroundImpl()

    {

        return _isForeground();

    }

    private native boolean _connect();

    private native boolean _createUi(String appUid, int orientation,

                                     int selectedScreenMode, String rootpath,

                                     boolean backGroundStart);

    private native void _toForeground();

    private native boolean _isForeground();

}