feedsplugin.FeedsSettingsTab.java Source code

Introduction

Here is the source code for feedsplugin.FeedsSettingsTab.java

Source

/*
 * Copyright Michael Keppler
 *
 * 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 feedsplugin;

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.ArrayList;

import javax.swing.DefaultListModel;
import javax.swing.Icon;
import javax.swing.JButton;
import javax.swing.JEditorPane;
import javax.swing.JList;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.ListSelectionModel;
import javax.swing.event.ListSelectionEvent;
import javax.swing.event.ListSelectionListener;

import org.apache.commons.lang.StringUtils;

import util.ui.EnhancedPanelBuilder;
import util.ui.Localizer;
import util.ui.UiUtilities;

import com.jgoodies.forms.builder.ButtonBarBuilder2;
import com.jgoodies.forms.factories.FormFactory;
import com.jgoodies.forms.layout.CellConstraints;

import devplugin.PluginInfo;
import devplugin.SettingsTab;

public class FeedsSettingsTab implements SettingsTab {

    private static final Localizer mLocalizer = Localizer.getLocalizerFor(FeedsSettingsTab.class);

    private DefaultListModel mListModel;
    private JList mFeeds;
    private JButton mAdd;
    private JButton mRemove;

    private FeedsPluginSettings mSettings;

    public FeedsSettingsTab(final FeedsPluginSettings settings) {
        mSettings = settings;
    }

    public JPanel createSettingsPanel() {
        final EnhancedPanelBuilder panelBuilder = new EnhancedPanelBuilder(
                FormFactory.RELATED_GAP_COLSPEC.encode() + ", fill:default:grow");
        final CellConstraints cc = new CellConstraints();

        mListModel = new DefaultListModel();
        for (String feed : mSettings.getFeeds()) {
            mListModel.addElement(feed);
        }
        mFeeds = new JList(mListModel);
        mFeeds.setSelectedIndex(0);
        mFeeds.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
        mFeeds.addListSelectionListener(new ListSelectionListener() {
            public void valueChanged(final ListSelectionEvent e) {
                listSelectionChanged();
            }
        });

        panelBuilder.addGrowingRow();
        panelBuilder.add(new JScrollPane(mFeeds),
                cc.xyw(2, panelBuilder.getRow(), panelBuilder.getColumnCount() - 1));

        mAdd = new JButton(mLocalizer.msg("add", "Add feed"));
        mAdd.addActionListener(new ActionListener() {

            public void actionPerformed(final ActionEvent e) {
                String genre = JOptionPane.showInputDialog(mLocalizer.msg("addMessage", "Add feed URL"), "");
                if (genre != null) {
                    genre = genre.trim();
                    if (genre.length() > 0) {
                        mListModel.addElement(genre);
                    }
                }
            }
        });

        mRemove = new JButton(mLocalizer.msg("remove", "Remove feed"));
        mRemove.addActionListener(new ActionListener() {

            public void actionPerformed(final ActionEvent e) {
                final int index = mFeeds.getSelectedIndex();
                if (index >= 0) {
                    mListModel.remove(index);
                }
            }
        });

        panelBuilder.addRow();
        ButtonBarBuilder2 buttonBar = new ButtonBarBuilder2();
        buttonBar.addButton(new JButton[] { mAdd, mRemove });
        panelBuilder.add(buttonBar.getPanel(), cc.xyw(2, panelBuilder.getRow(), panelBuilder.getColumnCount() - 1));

        mFeeds.addListSelectionListener(new ListSelectionListener() {
            public void valueChanged(final ListSelectionEvent e) {
                mRemove.setEnabled(mFeeds.getSelectedIndex() >= 0);
            }
        });

        panelBuilder.addParagraph(mLocalizer.msg("moreFeeds", "Get more feeds"));
        panelBuilder.addRow();
        JEditorPane help = UiUtilities.createHtmlHelpTextArea(mLocalizer.msg("help",
                "You can find more news feeds on the <a href=\"{0}\">plugin help page</a>. If you know more interesting feeds, feel free to add them on that page.",
                StringUtils.replace(PluginInfo.getHelpUrl(FeedsPlugin.getInstance().getId()), "&", "&amp;")));
        panelBuilder.add(help, cc.xyw(2, panelBuilder.getRow(), panelBuilder.getColumnCount() - 1));

        // force update of enabled states
        listSelectionChanged();

        return panelBuilder.getPanel();
    }

    private void listSelectionChanged() {
        final boolean selected = (mFeeds.getSelectedIndex() > -1);
        mRemove.setEnabled(selected);
    }

    public Icon getIcon() {
        return FeedsPlugin.getPluginIcon();
    }

    public String getTitle() {
        return null;
    }

    public void saveSettings() {
        ArrayList<String> feeds = new ArrayList<String>(mListModel.getSize());
        for (int i = 0; i < mListModel.getSize(); i++) {
            feeds.add((String) mListModel.get(i));
        }
        mSettings.setFeeds(feeds);
        FeedsPlugin.getInstance().updateFeeds();
    }

}