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package org.netbeans.modules.scala.sbt.project;
import java.awt.Component;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.util.Arrays;
import java.util.Collection;
import java.util.Comparator;
import javax.lang.model.element.TypeElement;
import javax.swing.DefaultListCellRenderer;
import javax.swing.JList;
import javax.swing.JPanel;
import javax.swing.ListSelectionModel;
import javax.swing.SwingUtilities;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;
import javax.swing.event.ListSelectionEvent;
import javax.swing.event.ListSelectionListener;
import org.netbeans.modules.csl.api.ElementHandle;
import org.openide.awt.Mnemonics;
import org.openide.awt.MouseUtils;
import org.openide.filesystems.FileObject;
import org.openide.util.NbBundle;
import org.openide.util.RequestProcessor;
import org.netbeans.api.language.util.ast.AstDfn;
import org.netbeans.modules.scala.core.ScalaSourceUtil;
/** Browses and allows to choose a project's main class.
*
* @author Jiri Rechtacek
*/
public class MainClassChooser extends JPanel {
private ChangeListener changeListener;
private String dialogSubtitle = null;
private Collection<AstDfn> possibleMainClasses;
/** Creates new form MainClassChooser */
public MainClassChooser (FileObject[] sourcesRoots) {
this (sourcesRoots, null);
}
public MainClassChooser (FileObject[] sourcesRoots, String subtitle) {
dialogSubtitle = subtitle;
initComponents();
jMainClassList.setCellRenderer(new MainClassRenderer());
initClassesView();
initClassesModel(sourcesRoots);
}
public MainClassChooser (final Collection<AstDfn> mainClassesInFile) {
assert mainClassesInFile != null;
this.initComponents();
jMainClassList.setCellRenderer(new MainClassRenderer());
initClassesView();
initClassesModel (mainClassesInFile);
}
public MainClassChooser (final Collection<AstDfn> mainClassesInFile, final String subtitle) {
assert mainClassesInFile != null;
dialogSubtitle = subtitle;
this.initComponents();
jMainClassList.setCellRenderer(new MainClassRenderer());
initClassesView();
initClassesModel (mainClassesInFile);
}
private void initClassesView () {
possibleMainClasses = null;
jMainClassList.setSelectionMode (ListSelectionModel.SINGLE_SELECTION);
jMainClassList.setListData (getWarmupList ());
jMainClassList.addListSelectionListener (new ListSelectionListener () {
public void valueChanged (ListSelectionEvent evt) {
if (changeListener != null) {
changeListener.stateChanged (new ChangeEvent (evt));
}
}
});
// support for double click to finish dialog with selected class
jMainClassList.addMouseListener (new MouseListener () {
public void mouseClicked (MouseEvent e) {
if (MouseUtils.isDoubleClick (e)) {
if (getSelectedMainClass () != null) {
if (changeListener != null) {
changeListener.stateChanged (new ChangeEvent (e));
}
}
}
}
public void mousePressed (MouseEvent e) {}
public void mouseReleased (MouseEvent e) {}
public void mouseEntered (MouseEvent e) {}
public void mouseExited (MouseEvent e) {}
});
if (dialogSubtitle != null) {
Mnemonics.setLocalizedText (jLabel1, dialogSubtitle);
}
}
private void initClassesModel (final FileObject[] sourcesRoots) {
RequestProcessor.getDefault ().post (new Runnable () {
public void run () {
possibleMainClasses = ScalaSourceUtil.getMainClassesAsJavaCollection(sourcesRoots);
if (possibleMainClasses.isEmpty ()) {
SwingUtilities.invokeLater( new Runnable () {
public void run () {
jMainClassList.setListData (new String[] { NbBundle.getMessage (MainClassChooser.class, "LBL_ChooseMainClass_NO_CLASSES_NODE") } ); // NOI18N
}
});
} else {
final TypeElement[] arr = possibleMainClasses.toArray(new TypeElement[possibleMainClasses.size()]);
// #46861, sort name of classes
Arrays.sort (arr, new MainClassComparator());
SwingUtilities.invokeLater(new Runnable () {
public void run () {
jMainClassList.setListData (arr);
jMainClassList.setSelectedIndex (0);
}
});
}
}
});
}
private void initClassesModel (final Collection<AstDfn> mainClasses) {
final AstDfn[] arr = mainClasses.toArray(new AstDfn[mainClasses.size()]);
//Arrays.sort (arr, new MainClassComparator());
possibleMainClasses = mainClasses;
jMainClassList.setListData (arr);
jMainClassList.setSelectedIndex (0);
}
private Object[] getWarmupList () {
// return JMManager.getManager().isScanInProgress() ?
// new Object[] {NbBundle.getMessage (MainClassChooser.class, "LBL_ChooseMainClass_SCANNING_MESSAGE")}:
// new Object[] {NbBundle.getMessage (MainClassChooser.class, "LBL_ChooseMainClass_WARMUP_MESSAGE")}; // NOI18N
return new Object[] {NbBundle.getMessage (MainClassChooser.class, "LBL_ChooseMainClass_WARMUP_MESSAGE")};
}
private boolean isValidMainClassName (Object value) {
return (possibleMainClasses != null) && (possibleMainClasses.contains (value));
}
/** Returns the selected main class.
*
* @return a binary name of class or null if no class with the main method is selected
*/
@SuppressWarnings("unchecked")
public String getSelectedMainClass () {
ElementHandle te = null;
if (isValidMainClassName (jMainClassList.getSelectedValue ())) {
te = (ElementHandle)jMainClassList.getSelectedValue();
}
if (te instanceof AstDfn) {
return ((AstDfn) te).qualifiedName();
}
return te == null ? null : te.getName();
}
public void addChangeListener (ChangeListener l) {
changeListener = l;
}
public void removeChangeListener (ChangeListener l) {
changeListener = null;
}
// Used only from unit tests to suppress check of main method. If value
// is different from null it will be returned instead.
public static Boolean unitTestingSupport_hasMainMethodResult = null;
/** Check if the given file object represents a source with the main method.
*
* @param fo source
* @return true if the source contains the main method
*/
public static boolean hasMainMethod(FileObject fo) {
// support for unit testing
if (MainClassChooser.unitTestingSupport_hasMainMethodResult != null) {
return MainClassChooser.unitTestingSupport_hasMainMethodResult.booleanValue ();
}
if (fo == null) {
// ??? maybe better should be thrown IAE
return false;
}
return true;//!SourceUtils.getMainClasses(fo).isEmpty();
}
/** 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.
*/
private void initComponents() {//GEN-BEGIN:initComponents
java.awt.GridBagConstraints gridBagConstraints;
jLabel1 = new javax.swing.JLabel();
jScrollPane1 = new javax.swing.JScrollPane();
jMainClassList = new javax.swing.JList();
setLayout(new java.awt.GridBagLayout());
setPreferredSize(new java.awt.Dimension(380, 300));
getAccessibleContext().setAccessibleDescription(org.openide.util.NbBundle.getBundle(MainClassChooser.class).getString("AD_MainClassChooser"));
jLabel1.setLabelFor(jMainClassList);
org.openide.awt.Mnemonics.setLocalizedText(jLabel1, org.openide.util.NbBundle.getBundle(MainClassChooser.class).getString("CTL_AvaialableMainClasses"));
gridBagConstraints = new java.awt.GridBagConstraints();
gridBagConstraints.gridx = 0;
gridBagConstraints.gridy = 0;
gridBagConstraints.gridwidth = java.awt.GridBagConstraints.REMAINDER;
gridBagConstraints.fill = java.awt.GridBagConstraints.HORIZONTAL;
gridBagConstraints.anchor = java.awt.GridBagConstraints.NORTHWEST;
gridBagConstraints.weightx = 1.0;
gridBagConstraints.insets = new java.awt.Insets(12, 12, 2, 12);
add(jLabel1, gridBagConstraints);
jScrollPane1.setMinimumSize(new java.awt.Dimension(100, 200));
jScrollPane1.setViewportView(jMainClassList);
jMainClassList.getAccessibleContext().setAccessibleDescription(org.openide.util.NbBundle.getBundle(MainClassChooser.class).getString("AD_jMainClassList"));
gridBagConstraints = new java.awt.GridBagConstraints();
gridBagConstraints.gridx = 0;
gridBagConstraints.gridy = 1;
gridBagConstraints.gridwidth = java.awt.GridBagConstraints.REMAINDER;
gridBagConstraints.gridheight = java.awt.GridBagConstraints.REMAINDER;
gridBagConstraints.fill = java.awt.GridBagConstraints.BOTH;
gridBagConstraints.anchor = java.awt.GridBagConstraints.NORTHWEST;
gridBagConstraints.weightx = 1.0;
gridBagConstraints.weighty = 1.0;
gridBagConstraints.insets = new java.awt.Insets(0, 12, 0, 12);
add(jScrollPane1, gridBagConstraints);
}//GEN-END:initComponents
// Variables declaration - do not modify//GEN-BEGIN:variables
private javax.swing.JLabel jLabel1;
private javax.swing.JList jMainClassList;
private javax.swing.JScrollPane jScrollPane1;
// End of variables declaration//GEN-END:variables
private static final class MainClassRenderer extends DefaultListCellRenderer {
@Override
public Component getListCellRendererComponent (JList list, Object value, int index, boolean isSelected, boolean cellHasFocus) {
String displayName;
if (value instanceof String) {
displayName = (String) value;
} if (value instanceof TypeElement) {
displayName = ((TypeElement) value).getQualifiedName().toString();
} else if (value instanceof AstDfn) {
displayName = ((AstDfn) value).qualifiedName();
} else {
displayName = value.toString ();
}
return super.getListCellRendererComponent (list, displayName, index, isSelected, cellHasFocus);
}
}
private static class MainClassComparator implements Comparator<TypeElement> {
public int compare(TypeElement arg0, TypeElement arg1) {
return arg0.getQualifiedName().toString().compareTo(arg1.getQualifiedName().toString());
}
}
}