/*

* 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.eswt;

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

import java.io.InputStream;

import org.eclipse.swt.SWT;

import org.eclipse.swt.graphics.Image;

import org.eclipse.swt.layout.GridData;

import org.eclipse.swt.widgets.Composite;

import org.eclipse.swt.widgets.Event;

import org.eclipse.swt.widgets.Label;

import org.eclipse.swt.widgets.Link;

import org.eclipse.swt.widgets.Listener;

/**

 * InstallConfirmationView asks installation confirmation

 * from the user.

 */

public class InstallConfirmationView extends ConfirmationViewBase

{

    private InstallDetailsView iInstallDetailsView = null;

    private InstallInfo iInstallInfo = null;

    /** Application suite icon */

    private Image iSuiteIcon = null;

    /** Constructor */

    protected InstallConfirmationView()

    {

        super();

    }

    /** Constructor */

    protected InstallConfirmationView(InstallerUiEswt aInstaller, Composite aParent)

    {

        super(aInstaller, aParent, 8);

        setTitle(InstallerUiTexts.get(InstallerUiTexts.INSTALL));

        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()

    {

        GridData gridData = null;

        int horizontalSpan = getColumns() - 1;

        int labelStyle = SWT.WRAP;

        // Add suite icon.

        InputStream iconInputStream = iInstallInfo.getIconInputStream();

        if (iconInputStream != null)

        {

            iSuiteIcon = InstallerUiEswt.loadImage

                         (getComposite().getDisplay(), iconInputStream,

                          iInstallInfo.getIconPath());

            if (iSuiteIcon != null)

            {

                Label iconLabel = createLabel(iSuiteIcon, 2, SWT.NONE);

                horizontalSpan = getColumns() - 3;

            }

            else

            {

                horizontalSpan = getColumns() - 1;

            }

        }

        // Add title.

        String title = InstallerUiTexts.get

                       (InstallerUiTexts.INSTALL_QUERY,

                        new String[] { iInstallInfo.getName() });

        if (iInstallInfo.getOldVersion() != null)

        {

            title = InstallerUiTexts.get

                    (InstallerUiTexts.UPDATE_QUERY,

                     new String[] { iInstallInfo.getName(),

                                    iInstallInfo.getOldVersion(),

                                    iInstallInfo.getVersion()

                                  });

        }

        Label titleLabel = createLabel(title, horizontalSpan, labelStyle);

        titleLabel.setFont(iInstallerUi.getBoldFont());

        // Add security icon.

        boolean identified = (iInstallInfo.getCertificates() != null);

        Label securityIconLabel = createSecurityLabel(identified);

        horizontalSpan = getColumns();

        // Add link to details.

        Link detailsLink = new Link(getComposite(), SWT.NONE);

        detailsLink.setText("<a>" +

                            InstallerUiTexts.get

                            (InstallerUiTexts.APP_DETAILS) +

                            "</a>");

        detailsLink.addListener(SWT.Selection, new Listener()

        {

            public void handleEvent(Event aEvent)

            {

                openDetailsView();

            }

        });

        gridData = new GridData(GridData.FILL_HORIZONTAL);

        gridData.horizontalSpan = horizontalSpan;

        detailsLink.setLayoutData(gridData);

        addSoftKeyListenerFor(detailsLink);

    }

    /**

     * This method is called after user has answered

     * to confirmation.

     */

    protected void getDataFromView()

    {

        // nop

    }

    /**

     * Returns SWT style for this view.

     */

    protected int getStyle()

    {

        return SWT.V_SCROLL;

    }

    /**

     * Opens installation details view.

     */

    private void openDetailsView()

    {

        if (iInstallDetailsView != null)

        {

            return;

        }

        iInstallDetailsView = new InstallDetailsView(

            iInstallerUi, getShell(), getTitle(), iInstallInfo, iSuiteIcon);

        // Hide this view, so that if details view is cancelled

        // this view is no longer visible.

        setVisible(false);

        // New dialog must be opened in a new thread,

        // because we cannot use the main thread (which

        // is blocked by InstallConfirmationView) and we

        // cannot block the UI main thread

        // where this method gets executed.

        new Thread(new Runnable()

        {

            public void run()

            {

                if (iInstallDetailsView.confirm())

                {

                    log("installDetailsView confirmed");

                    confirmOk();

                }

                else

                {

                    log("installDetailsView cancelled");

                    confirmCancel();

                }

                iInstallDetailsView.dispose();

                iInstallDetailsView = null;

            }

        }, "InstallerUiDetailsViewThread").start();

    }

}