/*

* 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 com.nokia.mj.impl.installer.ui.PermissionInfo;

import com.nokia.mj.impl.security.midp.common.SigningCertificate;

import java.io.InputStream;

import org.eclipse.swt.SWT;

import org.eclipse.swt.SWTException;

import org.eclipse.swt.events.FocusEvent;

import org.eclipse.swt.events.FocusListener;

import org.eclipse.swt.events.KeyEvent;

import org.eclipse.swt.graphics.Image;

import org.eclipse.swt.graphics.Point;

import org.eclipse.swt.layout.GridData;

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.Link;

import org.eclipse.swt.widgets.Listener;

import org.eclipse.swt.widgets.Shell;

/**

 * PermissionConfirmationView asks permissions confirmation

 * from the user.

 */

public class PermissionConfirmationView extends ConfirmationViewBase

{

    private PermissionDetailsView iPermissionDetailsView = null;

    private CertificateDetailsView iCertificateDetailsView = null;

    private InstallInfo iInstallInfo = null;

    private PermissionInfo iPermissionInfo = null;

    /** Application suite icon */

    private Image iSuiteIcon = null;

    private Button iAllowButton = null;

    private Button iDenyButton = null;

    /** Constructor */

    protected PermissionConfirmationView()

    {

        super();

    }

    /** Constructor */

    protected PermissionConfirmationView(InstallerUiEswt aInstaller, Composite aParent)

    {

        super(aInstaller, aParent, 8);

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

        setCommands(null, InstallerUiTexts.get(InstallerUiTexts.CANCEL));

    }

    /**

     * Synchoronous method for asking user confirmation.

     */

    public boolean confirm(InstallInfo aInstallInfo,

                           PermissionInfo aPermissionInfo)

    {

        iInstallInfo = aInstallInfo;

        iPermissionInfo = aPermissionInfo;

        boolean result = confirm();

        if (result)

        {

            log("permissionConfirmationView confirmed");

        }

        else

        {

            log("permissionConfirmationView cancelled");

        }

        return result;

    }

    /**

     * 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 permission query label.

        Label domainLabel = createLabel(

                                InstallerUiTexts.get(InstallerUiTexts.PERM_QUERY),

                                horizontalSpan, labelStyle);

        // Add allow button.

        iAllowButton = new Button(getComposite(), SWT.NONE);

        iAllowButton.setText(InstallerUiTexts.get

                             (InstallerUiTexts.PERM_ALLOW_ALWAYS));

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

        {

            public void handleEvent(Event aEvent)

            {

                iPermissionInfo.setPermissionAllowed(true);

                confirmOk();

            }

        });

        iAllowButton.addFocusListener(new FocusListener()

        {

            public void focusGained(FocusEvent aEvent)

            {

                if (!userHasAnswered())

                {

                    iPermissionInfo.setPermissionAllowed(true);

                }

            }

            public void focusLost(FocusEvent aEvent)

            {

                // nop

            }

        });

        gridData = new GridData(GridData.FILL_HORIZONTAL);

        gridData.horizontalSpan = horizontalSpan;

        iAllowButton.setLayoutData(gridData);

        iAllowButton.setFocus();

        addSoftKeyListenerFor(iAllowButton);

        // Add deny button.

        iDenyButton = new Button(getComposite(), SWT.NONE);

        iDenyButton.setText(InstallerUiTexts.get

                            (InstallerUiTexts.PERM_ASK_ME_LATER));

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

        {

            public void handleEvent(Event aEvent)

            {

                iPermissionInfo.setPermissionAllowed(false);

                confirmOk();

            }

        });

        iDenyButton.addFocusListener(new FocusListener()

        {

            public void focusGained(FocusEvent aEvent)

            {

                if (!userHasAnswered())

                {

                    iPermissionInfo.setPermissionAllowed(false);

                }

            }

            public void focusLost(FocusEvent aEvent)

            {

                // nop

            }

        });

        gridData = new GridData(GridData.FILL_HORIZONTAL);

        gridData.horizontalSpan = horizontalSpan;

        iDenyButton.setLayoutData(gridData);

        addSoftKeyListenerFor(iDenyButton);

        // Add link for permission details.

        if (iPermissionInfo != null &&

                iPermissionInfo.getPermissionNames() != null &&

                iPermissionInfo.getPermissionNames().length > 0)

        {

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

            detailsLink.setText("<a>" +

                                InstallerUiTexts.get(

                                    InstallerUiTexts.PERM_VIEW_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);

        }

        // Add links for certificate details.

        SigningCertificate[] certs = iInstallInfo.getCertificates();

        if (certs != null)

        {

            // Add link to the first certificate only, it is the one

            // that will be used for MIDP2 applications.

            for (int i = 0; i < 1; i++)

            {

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

                certLink.setText("<a>" +

                                 InstallerUiTexts.get

                                 (InstallerUiTexts.CERTIFICATE_INFO) +

                                 "</a>");

                final int certIndex = i;

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

                {

                    public void handleEvent(Event aEvent)

                    {

                        openCertsView(certIndex);

                    }

                });

                gridData = new GridData(GridData.FILL_HORIZONTAL);

                gridData.horizontalSpan = horizontalSpan;

                certLink.setLayoutData(gridData);

                addSoftKeyListenerFor(certLink);

            }

        }

    }

    /**

     * This method is called after user has answered

     * to confirmation.

     */

    protected void getDataFromView()

    {

        // nop

    }

    /**

     * Returns true if the View should have focus after it has been opened.

     */

    protected boolean forceFocusToView()

    {

        return false;

    }

    /**

     * Returns SWT style for this view.

     */

    protected int getStyle()

    {

        return SWT.V_SCROLL;

    }

    /**

     * Called after view and commands have been created. Subclasses

     * can overrride this method to set focus to their own default

     * commands.

     */

    protected void setDefaultCommand()

    {

        if (iAllowButton != null)

        {

            iAllowButton.setFocus();

            getShell().setDefaultButton(iAllowButton);

        }

    }

    /**

     * Called when user presses left soft key.

     */

    protected void lskPressed(KeyEvent aEvent)

    {

        if (iCancelCommand != null && iCancelCommand.isFocusControl())

        {

            confirmCancel();

        }

        else

        {

            confirmOk();

        }

    }

    /**

     * Opens installation details view.

     */

    private void openDetailsView()

    {

        if (iPermissionDetailsView != null)

        {

            return;

        }

        iPermissionDetailsView = new PermissionDetailsView

        (iInstallerUi, getShell(),

         getTitle(), iPermissionInfo);

        // 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 (iPermissionDetailsView.confirm())

                {

                    log("permissionDetailsView confirmed");

                    confirmOk();

                }

                else

                {

                    log("permissionDetailsView cancelled");

                }

                iPermissionDetailsView.dispose();

                iPermissionDetailsView = null;

                setVisible(true);

            }

        }, "InstallerUiPermDetailsViewThread").start();

    }

    /**

     * Opens certificate information view.

     */

    private void openCertsView(int aCertIndex)

    {

        iCertificateDetailsView = new CertificateDetailsView

        (iInstallerUi, getShell(),

         getTitle(), iInstallInfo, aCertIndex);

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

        // because we cannot use the main thread (which

        // is blocked by InstallDetailsView) and we

        // cannot block the UI main thread

        // where this method gets executed.

        new Thread(new Runnable()

        {

            public void run()

            {

                if (iCertificateDetailsView.confirm())

                {

                    log("certificateDetailsView confirmed");

                    confirmOk();

                }

                else

                {

                    log("certificateDetailsView cancelled");

                }

                iCertificateDetailsView.dispose();

                iCertificateDetailsView = null;

                setVisible(true);

            }

        }, "InstallerUiCertViewThread").start();

    }

}