/*

* Copyright (c) 2008-2010 Nokia Corporation and/or its subsidiary(-ies).

* 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:

*

*/

package com.nokia.mj.impl.installer.ui.eswt2;

import com.nokia.mj.impl.installer.ui.ApplicationInfo;

import com.nokia.mj.impl.installer.ui.InstallInfo;

import java.io.InputStream;

import org.eclipse.swt.SWT;

import org.eclipse.swt.SWTException;

import org.eclipse.swt.graphics.Image;

import org.eclipse.swt.graphics.Point;

import org.eclipse.swt.layout.GridData;

import org.eclipse.swt.widgets.Combo;

import org.eclipse.swt.widgets.Composite;

import org.eclipse.swt.widgets.Button;

import org.eclipse.swt.widgets.Event;

import org.eclipse.swt.widgets.Label;

import org.eclipse.swt.widgets.Listener;

import org.eclipse.swt.widgets.Shell;

import org.eclipse.swt.widgets.Text;

/**

 * InstallConfirmationView asks installation confirmation

 * from the user.

 */

public class InstallConfirmationView extends ConfirmationViewBase

{

    private InstallInfo iInstallInfo = null;

    private Combo iDriveSelector = null;

    private Button iRetainDataButton = null;

    /** Constructor */

    protected InstallConfirmationView()

    {

        super();

    }

    /** Constructor */

    protected InstallConfirmationView(

        InstallerUiEswt aInstallerUi, Composite aParent)

    {

        super(aInstallerUi, aParent, 8);

        setTitle(InstallerUiTexts.get(InstallerUiTexts.INSTALLING));

        setCommands(InstallerUiTexts.get(InstallerUiTexts.OK),

                    InstallerUiTexts.get(InstallerUiTexts.CANCEL));

    }

    /**

     * Synchoronous method for asking user confirmation.

     */

    public boolean confirm(InstallInfo aInstallInfo)

    {

        iInstallInfo = aInstallInfo;

        boolean result = confirm();

        if (result)

        {

            log("installConfirmationView confirmed");

        }

        else

        {

            log("installConfirmationView cancelled");

        }

        return result;

    }

    /**

     * Calls setVisible method for superclass and calls

     * InstallerUiListener.uiIsReady when this view is

     * set visible for the first time,

     */

    private boolean iUiListenerNotified = false;

    public void setVisible(boolean aVisible)

    {

        super.setVisible(aVisible);

        if (aVisible && !iUiListenerNotified &&

                iInstallerUi.getListener() != null)

        {

            // Tell installer that UI is now ready and

            // "preparing installation" indicator can be hidden.

            iInstallerUi.getListener().uiIsReady();

            iUiListenerNotified = true;

        }

    }

    /**

     * This method is called once before view is opened.

     */

    protected void createView()

    {

        // Add header.

        String title = InstallerUiTexts.get(InstallerUiTexts.INSTALL_QUERY);

        if (iInstallInfo != null)

        {

            if (iInstallInfo.getOldVersion() != null)

            {

                title = InstallerUiTexts.get(InstallerUiTexts.UPDATE_QUERY);

            }

        }

        addHeader(title, iInstallInfo, null);

        GridData gridData = null;

        int horizontalSpan = getColumns();

        int labelStyle = SWT.WRAP;

        // Begin user selection widgets creation.

        int[] driveIds = iInstallInfo.getDriveIds();

        if (driveIds != null && driveIds.length > 0)

        {

            // Add installation drive selector.

            iDriveSelector = new Combo(getComposite(), SWT.READ_ONLY);

            gridData = new GridData(GridData.FILL_HORIZONTAL);

            gridData.horizontalSpan = horizontalSpan;

            iDriveSelector.setLayoutData(gridData);

            int[] driveTypes = iInstallInfo.getDriveTypes();

            long[] driveFreeSpaces = iInstallInfo.getDriveFreeSpaces();

            int driveIndex = 0;

            if (driveTypes != null && driveFreeSpaces != null)

            {

                for (int i = 0; i < driveIds.length &&

                        i < driveTypes.length &&

                        i < driveFreeSpaces.length; i++)

                {

                    iDriveSelector.add(getDriveString(driveIds[i],

                                                      driveTypes[i],

                                                      driveFreeSpaces[i]));

                    if (iInstallInfo.getDriveId() == driveIds[i])

                    {

                        driveIndex = i;

                    }

                }

                iDriveSelector.select(driveIndex);

            }

            addSoftKeyListenerFor(iDriveSelector);

        }

        if (iInstallInfo.getRetainData() != null)

        {

            // Add retain user data option.

            iRetainDataButton = new Button(getComposite(), SWT.CHECK);

            gridData = new GridData(GridData.FILL_HORIZONTAL);

            gridData.horizontalSpan = horizontalSpan;

            iRetainDataButton.setLayoutData(gridData);

            iRetainDataButton.setSelection

            (iInstallInfo.getRetainData().booleanValue());

            iRetainDataButton.setText(InstallerUiTexts.get

                                      (InstallerUiTexts.RETAIN_USER_DATA));

            addSoftKeyListenerFor(iRetainDataButton);

        }

        // End of user selection widgets creation.

        // After other widgets have been added, add content to

        // application info Composite.

        addAppInfo(iInstallInfo, true);

    }

    /**

     * This method is called after user has answered

     * to confirmation.

     */

    protected void getDataFromView()

    {

        if (iDriveSelector != null && !iDriveSelector.isDisposed())

        {

            int selectionIndex = iDriveSelector.getSelectionIndex();

            int drive = -1;

            if (selectionIndex >= 0)

            {

                drive = iInstallInfo.getDriveIds()[selectionIndex];

            }

            iInstallInfo.setDriveId(drive);

            log("Selected drive: " + drive);

        }

        if (iRetainDataButton != null && !iRetainDataButton.isDisposed())

        {

            boolean selection = iRetainDataButton.getSelection();

            iInstallInfo.setRetainData(selection);

            log("RetainData: " + selection);

        }

    }

    /**

     * Returns SWT style for this view.

     */

    protected int getStyle()

    {

        return SWT.V_SCROLL;

    }

    /**

     * Returns drive name to be displayed in the UI.

     */

    private String getDriveString(int aId, int aType, long aFreeSpace)

    {

        // Choose drive letter to be displayed.

        String driveLetter = "0";

        if (aId >= 0 || aId < 26)

        {

            driveLetter = new String(new char[] {(char)('A' + aId) });

        }

        // Choose amount of free space to be displayed and

        // kb, MB or GB prefix for disk space unit.

        int freeSpace = (int)aFreeSpace;

        int prefix = 0;

        if (aFreeSpace >= 1024*1024*1024)

        {

            freeSpace = (int)(aFreeSpace / (1024*1024*1024));

            prefix = 3;

        }

        else if (aFreeSpace >= 1024*1024)

        {

            freeSpace = (int)(aFreeSpace / (1024*1024));

            prefix = 2;

        }

        else

        {

            freeSpace = (int)(aFreeSpace / 1024);

            prefix = 1;

        }

        // Choose text id and text parameters.

        String textId = null;

        Object[] textParams = new Object[]

        {

            driveLetter, new Integer(freeSpace)

        };

        switch (aType)

        {

        case InstallInfo.DRIVE_TYPE_UNKNOWN:

            switch (prefix)

            {

            case 0:

                textId = InstallerUiTexts.DRIVE_TYPE_UNKNOWN;

                textParams = new String[] { driveLetter };

                break;

            case 1:

                textId = InstallerUiTexts.DRIVE_TYPE_UNKNOWN_KB;

                break;

            case 2:

                textId = InstallerUiTexts.DRIVE_TYPE_UNKNOWN_MB;

                break;

            case 3:

                textId = InstallerUiTexts.DRIVE_TYPE_UNKNOWN_GB;

                break;

            }

            break;

        case InstallInfo.DRIVE_TYPE_PHONE_MEMORY:

            switch (prefix)

            {

            case 0:

                textId = InstallerUiTexts.DRIVE_TYPE_PHONE_MEMORY;

                textParams = new String[] { driveLetter };

                break;

            case 1:

                textId = InstallerUiTexts.DRIVE_TYPE_PHONE_MEMORY_KB;

                break;

            case 2:

                textId = InstallerUiTexts.DRIVE_TYPE_PHONE_MEMORY_MB;

                break;

            case 3:

                textId = InstallerUiTexts.DRIVE_TYPE_PHONE_MEMORY_GB;

                break;

            }

            break;

        case InstallInfo.DRIVE_TYPE_MEMORY_CARD:

            switch (prefix)

            {

            case 0:

                textId = InstallerUiTexts.DRIVE_TYPE_MEMORY_CARD;

                textParams = new String[] { driveLetter };

                break;

            case 1:

                textId = InstallerUiTexts.DRIVE_TYPE_MEMORY_CARD_KB;

                break;

            case 2:

                textId = InstallerUiTexts.DRIVE_TYPE_MEMORY_CARD_MB;

                break;

            case 3:

                textId = InstallerUiTexts.DRIVE_TYPE_MEMORY_CARD_GB;

                break;

            }

            break;

        case InstallInfo.DRIVE_TYPE_INTERNAL_MASS_STORAGE:

            switch (prefix)

            {

            case 0:

                textId = InstallerUiTexts.DRIVE_TYPE_INTERNAL_MASS_STORAGE;

                textParams = new String[] { driveLetter };

                break;

            case 1:

                textId = InstallerUiTexts.DRIVE_TYPE_INTERNAL_MASS_STORAGE_KB;

                break;

            case 2:

                textId = InstallerUiTexts.DRIVE_TYPE_INTERNAL_MASS_STORAGE_MB;

                break;

            case 3:

                textId = InstallerUiTexts.DRIVE_TYPE_INTERNAL_MASS_STORAGE_GB;

                break;

            }

            break;

        }

        return InstallerUiTexts.get(textId, textParams);

    }

}