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Java desktop environment and software distribution.
/* ApplicationManager.java
*
* Copyright (C) 2015 Raphael Jolly
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public License
* as published by the Free Software Foundation; either version 2 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 Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
package linoleum.application;
import java.awt.Component;
import java.beans.PropertyVetoException;
import java.net.URI;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.nio.file.Path;
import java.util.HashMap;
import java.util.Map;
import java.util.ServiceLoader;
import javax.activation.MimeType;
import javax.swing.DefaultListModel;
import javax.swing.Icon;
import javax.swing.ImageIcon;
import javax.swing.JDesktopPane;
import javax.swing.JInternalFrame;
import javax.swing.SwingUtilities;
import javax.swing.JLabel;
import javax.swing.JList;
import javax.swing.ListCellRenderer;
import linoleum.application.event.ClassPathListener;
import linoleum.application.event.ClassPathChangeEvent;
public class ApplicationManager extends Frame implements ClassPathListener {
private final Icon defaultIcon = new ImageIcon(getClass().getResource("/toolbarButtonGraphics/development/Application24.gif"));
private final Map map = new HashMap<>();
private final Map apps = new HashMap<>();
private final DefaultListModel model = new DefaultListModel<>();
private final ListCellRenderer renderer = new Renderer();
private class Renderer extends JLabel implements ListCellRenderer {
public Renderer() {
setOpaque(true);
setHorizontalAlignment(CENTER);
setVerticalAlignment(CENTER);
setVerticalTextPosition(BOTTOM);
setHorizontalTextPosition(CENTER);
}
@Override
public Component getListCellRendererComponent(final JList list, final Object value, final int index, final boolean isSelected, final boolean cellHasFocus) {
if (isSelected) {
setBackground(list.getSelectionBackground());
setForeground(list.getSelectionForeground());
} else {
setBackground(list.getBackground());
setForeground(list.getForeground());
}
final App app = (App)value;
final Icon icon = app.getIcon();
setIcon(icon == null?defaultIcon:icon);
setText(app.getName());
setFont(list.getFont());
return this;
}
};
public ApplicationManager() {
initComponents();
refresh();
}
public void open(final URI uri) {
open(getApplication(uri), uri);
}
private String getApplication(final URI uri) {
final Path path = Paths.get(uri);
try {
final String str = Files.probeContentType(path);
if (apps.containsKey(str)) {
return apps.get(str);
}
final MimeType type = new MimeType(str);
for (final Map.Entry entry : apps.entrySet()) {
final String key = entry.getKey();
final String value = entry.getValue();
if (type.match(key)) {
return value;
}
}
} catch (final Exception ex) {}
return path.toFile().isDirectory()?"FileManager":null;
}
public void open(final String name, final URI uri) {
if (map.containsKey(name)) {
map.get(name).open(this, uri);
}
}
public void open(final String name) {
if (map.containsKey(name)) {
map.get(name).open(this);
}
}
private void open(final int index) {
model.getElementAt(index).open(this);
}
public void classPathChanged(final ClassPathChangeEvent e) {
refresh();
for (final App app : map.values()) {
if (app instanceof ClassPathListener) {
((ClassPathListener)app).classPathChanged(e);
}
}
}
private void refresh() {
for (final JInternalFrame frame : ServiceLoader.load(JInternalFrame.class)) {
if (frame instanceof App) {
process((App)frame);
} else {
process(new App() {
@Override
public String getName() {
final String name = frame.getName();
return name == null?frame.getClass().getSimpleName():name;
}
@Override
public Icon getIcon() {
return null;
}
@Override
public String getMimeType() {
return null;
}
@Override
public void open(final ApplicationManager manager, final URI uri) {
open(manager);
}
@Override
public void open(final ApplicationManager manager) {
if (frame.getDesktopPane() == null) {
manager.getDesktopPane().add(frame);
}
select(frame);
}
});
}
}
for (final Application app : ServiceLoader.load(Application.class)) {
process(new App() {
@Override
public String getName() {
return app.getName();
}
@Override
public Icon getIcon() {
return app.getIcon();
}
@Override
public String getMimeType() {
return app.getMimeType();
}
@Override
public void open(final ApplicationManager manager, final URI uri) {
final JInternalFrame frame = app.open(uri);
if (frame instanceof Frame) {
((Frame)frame).setApplicationManager(manager);
} else {
if (frame.getDesktopPane() == null) {
manager.getDesktopPane().add(frame);
}
select(frame);
}
}
@Override
public void open(final ApplicationManager manager) {
open(manager, null);
}
});
}
}
void select(final JInternalFrame frame) {
frame.setVisible(true);
try {
if (frame.isIcon()) {
frame.setIcon(false);
} else {
frame.setSelected(true);
}
} catch (final PropertyVetoException ex) {}
}
public void select() {
select(this);
}
private final void process(final App app) {
final String name = app.getName();
if (!map.containsKey(name)) {
map.put(name, app);
final String type = app.getMimeType();
if (type != null) for (final String s : type.split(":")) apps.put(s, name);
SwingUtilities.invokeLater(new Runnable() {
public void run() {
model.addElement(app);
}
});
}
}
/**
* This method is called from within the constructor to initialize the
* form. WARNING: Do NOT modify this code. The content of this method is
* always regenerated by the Form Editor.
*/
@SuppressWarnings("unchecked")
// //GEN-BEGIN:initComponents
private void initComponents() {
jScrollPane1 = new javax.swing.JScrollPane();
jList1 = new javax.swing.JList();
setClosable(true);
setDefaultCloseOperation(javax.swing.WindowConstants.HIDE_ON_CLOSE);
setIconifiable(true);
setMaximizable(true);
setResizable(true);
setTitle("Applications");
jList1.setModel(model);
jList1.setSelectionMode(javax.swing.ListSelectionModel.SINGLE_SELECTION);
jList1.setCellRenderer(renderer);
jList1.setLayoutOrientation(javax.swing.JList.VERTICAL_WRAP);
jList1.setVisibleRowCount(-1);
jList1.addMouseListener(new java.awt.event.MouseAdapter() {
public void mouseClicked(java.awt.event.MouseEvent evt) {
jList1MouseClicked(evt);
}
});
jScrollPane1.setViewportView(jList1);
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jScrollPane1, javax.swing.GroupLayout.DEFAULT_SIZE, 394, Short.MAX_VALUE)
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jScrollPane1, javax.swing.GroupLayout.DEFAULT_SIZE, 277, Short.MAX_VALUE)
);
pack();
}// //GEN-END:initComponents
private void jList1MouseClicked(java.awt.event.MouseEvent evt) {//GEN-FIRST:event_jList1MouseClicked
if (evt.getClickCount() == 2) {
open(jList1.locationToIndex(evt.getPoint()));
}
}//GEN-LAST:event_jList1MouseClicked
// Variables declaration - do not modify//GEN-BEGIN:variables
private javax.swing.JList jList1;
private javax.swing.JScrollPane jScrollPane1;
// End of variables declaration//GEN-END:variables
}
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