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/*******************************************************************************
* Copyright (c) 2006, 2008 Oracle. All rights reserved.
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v1.0, which accompanies this distribution
* and is available at http://www.eclipse.org/legal/epl-v10.html.
*
* Contributors:
* Oracle - initial API and implementation
******************************************************************************/
package org.eclipse.jpt.ui.internal.prefs;
import java.io.IOException;
import org.eclipse.core.runtime.preferences.InstanceScope;
import org.eclipse.jdt.core.JavaCore;
import org.eclipse.jdt.ui.JavaUI;
import org.eclipse.jface.preference.IPersistentPreferenceStore;
import org.eclipse.jface.preference.IPreferenceStore;
import org.eclipse.jface.preference.PreferencePage;
import org.eclipse.jpt.core.JptCorePlugin;
import org.eclipse.jpt.core.internal.prefs.JpaPreferenceConstants;
import org.eclipse.jpt.ui.internal.JptUiMessages;
import org.eclipse.jpt.utility.internal.CollectionTools;
import org.eclipse.jpt.utility.internal.StringTools;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Combo;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Link;
import org.eclipse.ui.IWorkbench;
import org.eclipse.ui.IWorkbenchPreferencePage;
import org.eclipse.ui.preferences.IWorkbenchPreferenceContainer;
import org.eclipse.ui.preferences.ScopedPreferenceStore;
public class JpaPreferencePage extends PreferencePage
implements IWorkbenchPreferencePage
{
public static final String ID = "org.eclipse.jpt.ui.jpaPreferencePage";
private IPersistentPreferenceStore preferences;
private IPreferenceStore userLibPreferences;
private Label jpaLibLabel;
private Combo jpaLibCombo;
private Link userLibsLink;
public JpaPreferencePage() {
super();
preferences =
new ScopedPreferenceStore(
new InstanceScope(),
JptCorePlugin.instance().getBundle().getSymbolicName());
userLibPreferences =
new ScopedPreferenceStore(
new InstanceScope(),
JavaCore.getPlugin().getBundle().getSymbolicName());
}
public void init(IWorkbench workbench) {}
public Control createContents(Composite parent) {
Composite container = new Composite(parent, SWT.NONE);
GridLayout layout = new GridLayout();
container.setLayout(layout);
jpaLibLabel = createLabel(container, 1, JptUiMessages.JpaPreferencePage_defaultJpaLib);
jpaLibCombo = createCombo(container, true);
userLibsLink = new Link(container, SWT.NONE);
GridData data = new GridData(GridData.END, GridData.CENTER, false, false);
data.horizontalSpan = 2;
userLibsLink.setLayoutData(data);
userLibsLink.setText(JptUiMessages.JpaPreferencePage_userLibsLink);
userLibsLink.addSelectionListener(
new SelectionAdapter() {
public void widgetSelected(SelectionEvent e) {
((IWorkbenchPreferenceContainer) getContainer())
.openPage(JavaUI.ID_USER_LIBRARY_PREFERENCE_PAGE, null);
}
}
);
performDefaults();
return container;
}
private Label createLabel(Composite container, int span, String text) {
Label label = new Label(container, SWT.NONE);
label.setText(text);
GridData gd = new GridData();
gd.horizontalSpan = span;
label.setLayoutData(gd);
return label;
}
private Combo createCombo(Composite container, boolean fillHorizontal) {
Combo combo = new Combo(container, SWT.BORDER | SWT.SINGLE | SWT.READ_ONLY);
if (fillHorizontal) {
combo.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
}
else {
combo.setLayoutData(new GridData());
}
return combo;
}
private void fillJpaLibs() {
int index = jpaLibCombo.getSelectionIndex();
String selectedJpaLib = null;
if (index >= 0) {
selectedJpaLib = jpaLibCombo.getItem(jpaLibCombo.getSelectionIndex());
}
jpaLibCombo.clearSelection();
jpaLibCombo.setItems(JavaCore.getUserLibraryNames());
if (selectedJpaLib != null) {
int newIndex = CollectionTools.indexOf(jpaLibCombo.getItems(), selectedJpaLib);
if (newIndex >= 0) {
jpaLibCombo.select(newIndex);
}
}
}
@Override
public void setVisible(boolean visible) {
super.setVisible(visible);
if (visible) {
fillJpaLibs();
}
}
public void performDefaults() {
fillJpaLibs();
String defaultLib = preferences.getString(JpaPreferenceConstants.PREF_DEFAULT_JPA_LIB);
int index = -1;
if (! StringTools.stringIsEmpty(defaultLib)) {
index = CollectionTools.indexOf(jpaLibCombo.getItems(), defaultLib);
}
if (index >= 0) {
jpaLibCombo.select(index);
}
super.performDefaults();
}
public boolean performOk() {
int index = jpaLibCombo.getSelectionIndex();
String defaultLib = (index >= 0) ? jpaLibCombo.getItem(index) : null;
if (! StringTools.stringIsEmpty(defaultLib)) {
preferences.setValue(JpaPreferenceConstants.PREF_DEFAULT_JPA_LIB, defaultLib);
}
try {
preferences.save();
}
catch (IOException ioe) {
JptCorePlugin.log(ioe);
}
return true;
}
public void dispose() {
// null pointer check - bug 168337
if (jpaLibLabel != null) jpaLibLabel.dispose();
if (jpaLibCombo != null) jpaLibCombo.dispose();
super.dispose();
}
// private boolean libContainsJpaClasses() {
// return true;
// String jarLocation = getStringValue();
// String errorMessage = JptUiMessages.JpaPreferencePage_invalidJpaLib;
// boolean hasError = false;
//
// try {
// JarFile jarFile = new JarFile(jarLocation);
// hasError = jarFile.getEntry("javax/persistence/EntityManager.class") == null;
// }
// catch (IOException ioe) {
// hasError = true;
// }
//
// if (hasError) {
// showErrorMessage(errorMessage);
// }
// else {
// clearErrorMessage();
// }
//
// return ! hasError;
// }
// }
}
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