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/*******************************************************************************
* Copyright (c) 2004, 2009 Tasktop Technologies and others.
* 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.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Tasktop Technologies - initial API and implementation
*******************************************************************************/
package org.eclipse.mylyn.internal.tasks.ui.wizards;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.jface.dialogs.IDialogSettings;
import org.eclipse.jface.wizard.WizardPage;
import org.eclipse.mylyn.commons.ui.CommonImages;
import org.eclipse.mylyn.internal.tasks.ui.TaskListBackupManager;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.ModifyEvent;
import org.eclipse.swt.events.ModifyListener;
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.DirectoryDialog;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Text;
/**
* Wizard Page for the Task Data Export Wizard
*
* @author Wesley Coelho
* @author Mik Kersten
* @author Rob Elves
*/
public class TaskDataExportWizardPage extends WizardPage {
private static final String PAGE_ID = "org.eclipse.mylyn.tasklist.exportPage"; //$NON-NLS-1$
private Button browseButton = null;
private Text destDirText = null;
// Key values for the dialog settings object
private final static String SETTINGS_SAVED = "Settings saved"; //$NON-NLS-1$
private final static String DEST_DIR_SETTING = "Destination directory setting"; //$NON-NLS-1$
public TaskDataExportWizardPage() {
super(PAGE_ID);
setPageComplete(false);
setImageDescriptor(CommonImages.BANNER_EXPORT);
setTitle(Messages.TaskDataExportWizardPage_Export_Mylyn_Task_Data);
}
/**
* Create the widgets on the page
*/
public void createControl(Composite parent) {
Composite container = new Composite(parent, SWT.NONE);
GridLayout layout = new GridLayout(1, false);
container.setLayout(layout);
createExportDirectoryControl(container);
initSettings();
Dialog.applyDialogFont(container);
setControl(container);
setPageComplete(validate());
}
/**
* Create widgets for specifying the destination directory
*/
private void createExportDirectoryControl(Composite parent) {
parent.setLayout(new GridLayout(3, false));
parent.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
new Label(parent, SWT.NONE).setText(Messages.TaskDataExportWizardPage_File);
Label l = new Label(parent, SWT.NONE);
l.setText(TaskListBackupManager.getBackupFileName());
GridData gd = new GridData(GridData.FILL_HORIZONTAL);
gd.horizontalSpan = 2;
l.setLayoutData(gd);
new Label(parent, SWT.NONE).setText(Messages.TaskDataExportWizardPage_Folder);
destDirText = new Text(parent, SWT.BORDER);
destDirText.setEditable(false);
destDirText.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
destDirText.addModifyListener(new ModifyListener() {
public void modifyText(ModifyEvent e) {
controlChanged();
}
});
browseButton = new Button(parent, SWT.PUSH);
browseButton.setText(Messages.TaskDataExportWizardPage_Browse_);
browseButton.addSelectionListener(new SelectionAdapter() {
@Override
public void widgetSelected(SelectionEvent e) {
DirectoryDialog dialog = new DirectoryDialog(getShell());
dialog.setText(Messages.TaskDataExportWizardPage_Folder_Selection);
dialog.setMessage(Messages.TaskDataExportWizardPage_Specify_the_destination_folder_for_task_data);
String dir = destDirText.getText();
dialog.setFilterPath(dir);
dir = dialog.open();
if (dir == null || dir.equals("")) { //$NON-NLS-1$
return;
}
destDirText.setText(dir);
controlChanged();
}
});
}
/**
* Initializes controls with values from the Dialog Settings object
*/
protected void initSettings() {
IDialogSettings settings = getDialogSettings();
if (settings.get(SETTINGS_SAVED) == null) {
destDirText.setText(""); //$NON-NLS-1$
} else {
String directory = settings.get(DEST_DIR_SETTING);
if (directory != null) {
destDirText.setText(settings.get(DEST_DIR_SETTING));
}
}
}
/**
* Saves the control values in the dialog settings to be used as defaults the next time the page is opened
*/
public void saveSettings() {
IDialogSettings settings = getDialogSettings();
settings.put(DEST_DIR_SETTING, destDirText.getText());
settings.put(SETTINGS_SAVED, SETTINGS_SAVED);
}
/** Called to indicate that a control's value has changed */
public void controlChanged() {
setPageComplete(validate());
}
/** Returns true if the information entered by the user is valid */
protected boolean validate() {
setMessage(null);
// Check that a destination dir has been specified
if (destDirText.getText().equals("")) { //$NON-NLS-1$
setMessage(Messages.TaskDataExportWizardPage_Please_choose_an_export_destination, IStatus.WARNING);
return false;
}
return true;
}
/** Returns the directory where data files are to be saved */
public String getDestinationDirectory() {
return destDirText.getText();
}
/** For testing only. Sets controls to the specified values */
public void setDestinationDirectory(String destinationDir) {
destDirText.setText(destinationDir);
}
}
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