/*

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

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the License "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.carbide.remoteconnections.wizard;

import com.nokia.carbide.remoteconnections.Messages;

import com.nokia.carbide.remoteconnections.RemoteConnectionsActivator;

import com.nokia.carbide.remoteconnections.interfaces.IConnection;

import org.eclipse.core.runtime.IPath;

import org.eclipse.core.runtime.Path;

import org.eclipse.jface.viewers.CheckStateChangedEvent;

import org.eclipse.jface.viewers.ICheckStateListener;

import org.eclipse.swt.SWT;

import org.eclipse.swt.events.SelectionAdapter;

import org.eclipse.swt.events.SelectionEvent;

import org.eclipse.swt.widgets.*;

import java.io.File;

import java.util.ArrayList;

/**

 * Page in export wizard

 */

public class ExportPage extends AbstractImportExportPage {

	private File file;

	private static String saveAsParent;

	protected ExportPage() {

		super("ExportPage"); //$NON-NLS-1$

		setTitle(Messages.getString("ExportPage.Title")); //$NON-NLS-1$

		setDescription(Messages.getString("ExportPage.Description")); //$NON-NLS-1$

	}

	public void createControl(Composite parent) {

		super.createControl(parent);

		Composite composite = (Composite) getControl();

        createViewerGroup(composite, Messages.getString("ExportPage.ViewerGroupLabel")); //$NON-NLS-1$

		viewer.addCheckStateListener(new ICheckStateListener() {

			public void checkStateChanged(CheckStateChangedEvent event) {

				boolean isValid = validatePage(false);

				setPageComplete(isValid);

				if (isValid) {

					Object[] checkedElements = viewer.getCheckedElements();

					connections = new ArrayList<IConnection>();

					for (int i = 0; i < checkedElements.length; i++) {

						connections.add((IConnection) checkedElements[i]);

					}

				}

			}

		});

		TableColumn[] columns = viewer.getTable().getColumns();

		for (TableColumn tableColumn : columns) {

			tableColumn.pack();

		}

		viewer.setAllChecked(true);

		createBrowseGroup(composite, Messages.getString("ExportPage.BrowseGroupLabel")); //$NON-NLS-1$

        browseButton.addSelectionListener(new SelectionAdapter() {

			@Override

			public void widgetSelected(SelectionEvent e) {

				FileDialog dialog =  new FileDialog(getShell(), SWT.SAVE);

				dialog.setText(Messages.getString("ExportPage.FileDialogTitle")); //$NON-NLS-1$

				if (saveAsParent == null)

					saveAsParent = System.getProperty("user.home"); //$NON-NLS-1$

				dialog.setOverwrite(true); // prompt for overwrite

				String path = dialog.open();

				if (path != null) {

					IPath saveAsPath = new Path(path);

					saveAsParent = saveAsPath.removeLastSegments(1).toString();

					pathText.setText(saveAsPath.toOSString());

				}

			}

        });

        setPageComplete(validatePage(true));

		RemoteConnectionsActivator.setHelp(composite, ".export_wizard"); //$NON-NLS-1$

	}

	protected boolean validatePage(boolean validateFile) {

		setErrorMessage(null);

		boolean valid = !validateFile;

		if (validateFile) {

			IPath path = new Path(pathText.getText());

			file = path.toFile();

			valid = file.isAbsolute();

		}

		if (!valid) {

			setErrorMessage(Messages.getString("ExportPage.NoFileSelectedError")); //$NON-NLS-1$

		}

		else if (viewer.getCheckedElements().length == 0) {

			setErrorMessage(Messages.getString("ExportPage.NoConnectionsSelectedError")); //$NON-NLS-1$

			valid = false;

		}

		return valid;

	}

	public File getFile() {

		return file;

	}

}