/*******************************************************************************
* Copyright (c) 2006, 2012 Oracle Corporation and others.
* 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 Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.bpel.ui.dialogs;
import java.util.Arrays;
import java.util.List;
import org.eclipse.bpel.ui.BPELUIPlugin;
import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.jface.dialogs.IDialogSettings;
import org.eclipse.jface.viewers.ILabelProvider;
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.dialogs.AbstractElementListSelectionDialog;
import org.eclipse.ui.dialogs.SelectionStatusDialog;
/**
* @author Michal Chmielewski (michal.chmielewski@oracle.com)
* @date Jun 19, 2006
*
*/
public class ListAndViewDialog extends AbstractElementListSelectionDialog {
private String fUpperListLabel;
private String fLowerViewLabel;
private Object[] fElements = new Object[0];
private Object[] fQualifierElements;
protected IDialogSettings fSettings;
/**
* Creates the two pane element selector.
*
* @param parent
* the parent shell.
* @param elementRenderer
* the element renderer.
* @param qualifierRenderer
* the qualifier renderer.
*/
public ListAndViewDialog(Shell parent, ILabelProvider elementRenderer ) {
super(parent, elementRenderer);
setSize(75, 15);
setAllowDuplicates(true);
fSettings = BPELUIPlugin.INSTANCE.getDialogSettingsFor(this);
setDialogBoundsSettings ( fSettings, getDialogBoundsStrategy() );
}
/**
* @return Return the dialog settings for this dialog.
*/
public IDialogSettings getDialogSettings () {
return fSettings;
}
@Override
public boolean close () {
saveSettings ();
return super.close();
}
protected void saveSettings () {
}
/**
* Sets the upper list label. If the label is <code>null</code> (default),
* no label is created.
*
* @param label
*/
public void setUpperListLabel (String label) {
fUpperListLabel = label;
}
/**
* Sets the lower list label.
*
* @param label
* String or <code>null</code>. If the label is
* <code>null</code> (default), no label is created.
*/
public void setLowerViewLabel(String label) {
fLowerViewLabel = label;
}
/**
* Sets the elements to be displayed.
*
* @param elements
* the elements to be displayed.
*/
public void setElements(Object[] elements) {
fElements = elements;
}
/*
* @see Dialog#createDialogArea(Composite)
*/
@Override
public Control createDialogArea(Composite parent) {
Composite contents = (Composite) super.createDialogArea(parent);
createMessageArea(contents);
createFilterText(contents);
createLabel(contents, fUpperListLabel);
createFilteredList(contents);
createLabel(contents, fLowerViewLabel);
createLowerView(contents);
setListElements(fElements);
List initialSelections = getInitialElementSelections();
if (!initialSelections.isEmpty()) {
Object element = initialSelections.get(0);
setSelection(new Object[] { element });
}
return contents;
}
/**
* Creates a label if name was not <code>null</code>.
*
* @param parent
* the parent composite.
* @param name
* the name of the label.
* @return returns a label if a name was given, <code>null</code>
* otherwise.
*/
protected Label createLabel(Composite parent, String name) {
if (name == null) {
return null;
}
Label label = new Label(parent, SWT.NONE);
label.setText(name);
label.setFont(parent.getFont());
return label;
}
/**
* Creates the list widget and sets layout data.
*
* @param parent
* the parent composite.
* @return returns the list table widget.
*/
protected Object createLowerView (Composite parent) {
return null;
}
/**
* @see SelectionStatusDialog#computeResult()
*/
@Override
protected void computeResult() {
setResult(Arrays.asList(getSelectedElements()));
}
/**
* @see AbstractElementListSelectionDialog#handleDefaultSelected()
*/
@Override
protected void handleDefaultSelected() {
if ( validateCurrentSelection() ) {
buttonPressed(IDialogConstants.OK_ID);
}
}
/**
* @see AbstractElementListSelectionDialog#handleSelectionChanged()
*/
@Override
protected void handleSelectionChanged() {
handleUpperSelectionChanged();
// https://bugs.eclipse.org/bugs/show_bug.cgi?id=330813
// https://jira.jboss.org/browse/JBIDE-7107
updateOkState();
}
private void handleUpperSelectionChanged() {
int index = getSelectionIndex();
if (index >= 0) {
fQualifierElements = getFoldedElements(index);
if (fQualifierElements == null) {
updateLowerViewWidget(new Object[] {});
} else {
updateLowerViewWidget(fQualifierElements);
}
} else {
updateLowerViewWidget(new Object[] {});
}
validateCurrentSelection();
// https://bugs.eclipse.org/bugs/show_bug.cgi?id=330813
// https://jira.jboss.org/browse/JBIDE-7107
updateOkState();
}
protected void updateLowerViewWidget(Object[] elements) {
}
}