/* ********************************************************************** **
** Copyright notice **
** **
** (c) 2005-2011 RSSOwl Development Team **
** http://www.rssowl.org/ **
** **
** All rights reserved **
** **
** This program and the accompanying materials are made available under **
** the terms of the Eclipse Public License v1.0 which accompanies this **
** distribution, and is available at: **
** http://www.rssowl.org/legal/epl-v10.html **
** **
** A copy is found in the file epl-v10.html and important notices to the **
** license from the team is found in the textfile LICENSE.txt distributed **
** in this package. **
** **
** This copyright notice MUST APPEAR in all copies of the file! **
** **
** Contributors: **
** RSSOwl Development Team - initial API and implementation **
** **
** ********************************************************************** */
package org.rssowl.ui.internal.dialogs.fatal;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.jface.dialogs.IMessageProvider;
import org.eclipse.jface.resource.JFaceResources;
import org.eclipse.jface.viewers.ArrayContentProvider;
import org.eclipse.jface.viewers.ComboViewer;
import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.LabelProvider;
import org.eclipse.jface.viewers.SelectionChangedEvent;
import org.eclipse.jface.wizard.WizardPage;
import org.eclipse.osgi.util.NLS;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Label;
import org.rssowl.core.internal.InternalOwl;
import org.rssowl.core.util.Pair;
import org.rssowl.ui.internal.Application;
import org.rssowl.ui.internal.OwlUI;
import org.rssowl.ui.internal.util.LayoutUtils;
import java.io.File;
import java.text.DateFormat;
import java.util.List;
/**
* Part of the {@link FatalErrorWizard} to restore from a backup.
*
* @author bpasero
*/
public class RestoreBackupPage extends WizardPage {
private List<File> fBackups;
private ComboViewer fBackupsViewer;
private final DateFormat fDateFormat = OwlUI.getShortDateFormat();
private Button fConfirmRestoreCheck;
private final IStatus fErrorStatus;
RestoreBackupPage(String pageName, IStatus errorStatus, List<File> backups) {
super(pageName, pageName, null);
fErrorStatus = errorStatus;
fBackups = backups;
}
/*
* @see org.eclipse.jface.dialogs.IDialogPage#createControl(org.eclipse.swt.widgets.Composite)
*/
public void createControl(Composite parent) {
/* Title Image and Message */
setImageDescriptor(OwlUI.getImageDescriptor("icons/wizban/welcome_wiz.gif")); //$NON-NLS-1$
if (!fErrorStatus.isOK())
setMessage(Messages.RestoreBackupPage_RSSOWL_CRASH, IMessageProvider.WARNING);
else
setMessage(Messages.RestoreBackupPage_RESTORE_TEXT_OK, IMessageProvider.INFORMATION);
/* Container */
Composite container = new Composite(parent, SWT.NONE);
container.setLayout(LayoutUtils.createGridLayout(2, 5, 5));
((GridLayout) container.getLayout()).marginBottom = 10;
/* Restore Information */
{
Label backupInfoLabel = new Label(container, SWT.NONE);
backupInfoLabel.setText(Messages.RestoreBackupPage_RESTORING_A_BACKUP);
backupInfoLabel.setFont(OwlUI.getBold(JFaceResources.DIALOG_FONT));
backupInfoLabel.setLayoutData(new GridData(SWT.BEGINNING, SWT.BEGINNING, false, false, 2, 1));
Label backupTextLabel = new Label(container, SWT.WRAP);
backupTextLabel.setText(Application.IS_WINDOWS && !fErrorStatus.isOK() ? Messages.RestoreBackupPage_BACKUP_INFO_RESTART : Messages.RestoreBackupPage_BACKUP_INFO_QUIT);
backupTextLabel.setLayoutData(new GridData(SWT.FILL, SWT.BEGINNING, true, false, 2, 1));
((GridData) backupTextLabel.getLayoutData()).widthHint = 200;
}
/* Current Profile Info */
Pair<File, Long> pair = InternalOwl.getDefault().getProfile();
File profile = pair.getFirst();
if (profile != null && profile.exists()) {
Label currentProfileLabel = new Label(container, SWT.NONE);
currentProfileLabel.setText(Messages.RestoreBackupPage_CURRENT_PROFILE);
currentProfileLabel.setLayoutData(new GridData(SWT.BEGINNING, SWT.BEGINNING, false, false));
((GridData) currentProfileLabel.getLayoutData()).verticalIndent = 5;
Long timestamp = (pair.getSecond() != null) ? pair.getSecond() : profile.lastModified();
Label currentProfileTextLabel = new Label(container, SWT.NONE);
currentProfileTextLabel.setText(NLS.bind(Messages.RestoreBackupPage_LAST_MODIFIED, fDateFormat.format(timestamp), OwlUI.getSize((int) profile.length())));
currentProfileTextLabel.setLayoutData(new GridData(SWT.FILL, SWT.BEGINNING, true, false));
((GridData) currentProfileTextLabel.getLayoutData()).verticalIndent = 5;
}
/* Restore Controls */
{
Label chooseBackupLabel = new Label(container, SWT.NONE);
chooseBackupLabel.setText(Messages.RestoreBackupPage_CHOOSE_BACKUP);
chooseBackupLabel.setLayoutData(new GridData(SWT.BEGINNING, SWT.CENTER, false, false));
fBackupsViewer = new ComboViewer(container, SWT.BORDER | SWT.READ_ONLY);
fBackupsViewer.getControl().setLayoutData(new GridData(SWT.BEGINNING, SWT.BEGINNING, false, false));
fBackupsViewer.getCombo().setVisibleItemCount(fBackups.size());
fBackupsViewer.setContentProvider(new ArrayContentProvider());
fBackupsViewer.setLabelProvider(new LabelProvider() {
@Override
public String getText(Object element) {
File file = (File) element;
return NLS.bind(Messages.RestoreBackupPage_BACKUP_LABEL, fDateFormat.format(file.lastModified()), OwlUI.getSize((int) file.length()));
}
});
fBackupsViewer.addSelectionChangedListener(new ISelectionChangedListener() {
public void selectionChanged(SelectionChangedEvent event) {
getContainer().updateButtons();
fConfirmRestoreCheck.setEnabled(!event.getSelection().isEmpty());
}
});
fBackupsViewer.setInput(fBackups);
}
/* Restore Advise */
{
Composite adviseContainer = new Composite(container, SWT.None);
adviseContainer.setLayout(LayoutUtils.createGridLayout(1, 0, 0));
adviseContainer.setLayoutData(new GridData(SWT.FILL, SWT.BEGINNING, true, false, 2, 1));
((GridData) adviseContainer.getLayoutData()).verticalIndent = 5;
Label adviseLabel = new Label(adviseContainer, SWT.NONE);
adviseLabel.setText(Messages.RestoreBackupPage_CAUTION);
adviseLabel.setFont(OwlUI.getBold(JFaceResources.DIALOG_FONT));
adviseLabel.setLayoutData(new GridData(SWT.BEGINNING, SWT.BEGINNING, false, false));
Label adviseTextLabel = new Label(adviseContainer, SWT.WRAP);
adviseTextLabel.setText(Messages.RestoreBackupPage_RESTORE_WARNING);
adviseTextLabel.setLayoutData(new GridData(SWT.FILL, SWT.BEGINNING, true, false));
((GridData) adviseTextLabel.getLayoutData()).widthHint = 200;
fConfirmRestoreCheck = new Button(adviseContainer, SWT.CHECK);
fConfirmRestoreCheck.setText(Messages.RestoreBackupPage_CONFIRM_RESTORE);
fConfirmRestoreCheck.setLayoutData(new GridData(SWT.FILL, SWT.BEGINNING, true, false));
((GridData) fConfirmRestoreCheck.getLayoutData()).verticalIndent = 5;
((GridData) fConfirmRestoreCheck.getLayoutData()).horizontalIndent = 5;
fConfirmRestoreCheck.setEnabled(false);
fConfirmRestoreCheck.addSelectionListener(new SelectionAdapter() {
@Override
public void widgetSelected(SelectionEvent e) {
getContainer().updateButtons();
}
});
}
Dialog.applyDialogFont(container);
setControl(container);
}
/*
* @see org.eclipse.jface.wizard.WizardPage#isPageComplete()
*/
@Override
public boolean isPageComplete() {
return fBackupsViewer.getSelection().isEmpty() || fConfirmRestoreCheck.getSelection();
}
File getSelectedBackup() {
IStructuredSelection selection = (IStructuredSelection) fBackupsViewer.getSelection();
if (!selection.isEmpty())
return (File) selection.getFirstElement();
return null;
}
}