UseExistingKeyPage.java

/*
 * Copyright (C) 2011  Ives van der Flaas
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package be.ac.ua.comp.scarletnebula.gui.keywizards;

import java.awt.BorderLayout;
import java.util.List;

import javax.swing.BorderFactory;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.border.BevelBorder;

import be.ac.ua.comp.scarletnebula.core.CloudProvider;
import be.ac.ua.comp.scarletnebula.gui.BetterTextLabel;
import be.ac.ua.comp.scarletnebula.gui.CollapsablePanel;
import be.ac.ua.comp.scarletnebula.gui.SelectKeyList;
import be.ac.ua.comp.scarletnebula.gui.ThrobberBarWithText;
import be.ac.ua.comp.scarletnebula.misc.SwingWorkerWithThrobber;
import be.ac.ua.comp.scarletnebula.wizard.DataRecorder;
import be.ac.ua.comp.scarletnebula.wizard.WizardPage;

public class UseExistingKeyPage extends WizardPage {
	private static final long serialVersionUID = 1L;
	SelectKeyList keylist;
	private final CloudProvider provider;

	UseExistingKeyPage(final CloudProvider provider) {
		this.provider = provider;
		final BetterTextLabel lbl = new BetterTextLabel(
				"Select the key you want to use from the following list. "
						+ "Note that you'll be asked to provide a file containing the actual key later on.");
		lbl.setBorder(BorderFactory.createEmptyBorder(20, 20, 0, 20));

		setLayout(new BorderLayout());

		keylist = new SelectKeyList(provider);

		final ThrobberBarWithText throbber = new ThrobberBarWithText(
				"Loading keys");
		final JPanel throbberContainer = new JPanel(new BorderLayout());
		throbberContainer.add(throbber, BorderLayout.CENTER);
		throbberContainer.setBorder(BorderFactory.createEmptyBorder(15, 0, 15,
				0));

		final CollapsablePanel collapsableThrobber = new CollapsablePanel(
				throbberContainer, false);

		final JPanel aboveKeylist = new JPanel(new BorderLayout());
		aboveKeylist.add(lbl, BorderLayout.PAGE_START);
		aboveKeylist.add(collapsableThrobber, BorderLayout.PAGE_END);
		add(aboveKeylist, BorderLayout.NORTH);

		(new SwingWorkerWithThrobber<Object, String>(collapsableThrobber) {
			@Override
			protected Object doInBackground() throws Exception {
				for (final String keyname : provider.getUnknownKeys()) {
					publish(keyname);
				}

				return null;
			}

			@Override
			protected void process(final List<String> keynames) {
				for (final String keyname : keynames) {
					keylist.add(keyname);
				}
			}
		}).execute();

		final JScrollPane listScrollPane = new JScrollPane(keylist);
		listScrollPane.setBorder(BorderFactory.createCompoundBorder(
				BorderFactory.createEmptyBorder(15, 20, 20, 20),
				BorderFactory.createBevelBorder(BevelBorder.LOWERED)));
		add(listScrollPane, BorderLayout.CENTER);

	}

	@Override
	public WizardPage next(final DataRecorder recorder) {
		final String selectedKey = keylist.getSelectedKey();

		if (selectedKey == null) {
			JOptionPane.showMessageDialog(this, "Please select a key.");
			return null;
		}
		return new SelectFileForKeyPage(provider, keylist.getSelectedKey());
	}

}