/*******************************************************************************
* Copyright (c) 2000, 2015 IBM 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:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.jdt.internal.debug.ui.launcher;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.core.runtime.ListenerList;
import org.eclipse.debug.core.ILaunchConfiguration;
import org.eclipse.jdt.launching.IRuntimeClasspathEntry;
import org.eclipse.jface.viewers.IContentProvider;
import org.eclipse.jface.viewers.IStructuredContentProvider;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.StructuredSelection;
import org.eclipse.jface.viewers.TableViewer;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.KeyAdapter;
import org.eclipse.swt.events.KeyEvent;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Shell;
/**
* A viewer that displays and manipulates runtime classpath entries.
*/
public class RuntimeClasspathViewer extends TableViewer implements IClasspathViewer {
/**
* Whether enabled/editable.
*/
private boolean fEnabled = true;
/**
* Entry changed listeners
*/
private ListenerList<IEntriesChangedListener> fListeners = new ListenerList<>();
/**
* The runtime classpath entries displayed in this viewer
*/
protected List<IRuntimeClasspathEntry> fEntries = new ArrayList<>();
class ContentProvider implements IStructuredContentProvider {
/**
* @see IStructuredContentProvider#getElements(Object)
*/
@Override
public Object[] getElements(Object inputElement) {
return getEntries();
}
/**
* @see IContentProvider#dispose()
*/
@Override
public void dispose() {
}
/**
* @see IContentProvider#inputChanged(Viewer, Object, Object)
*/
@Override
public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
}
}
/**
* Creates a runtime classpath viewer with the given parent.
*
* @param parent the parent control
*/
public RuntimeClasspathViewer(Composite parent) {
super(parent);
setContentProvider(new ContentProvider());
RuntimeClasspathEntryLabelProvider lp = new RuntimeClasspathEntryLabelProvider();
setLabelProvider(lp);
setInput(fEntries);
getTable().addKeyListener(new KeyAdapter() {
@Override
public void keyPressed(KeyEvent event) {
if (isEnabled() && event.character == SWT.DEL && event.stateMask == 0) {
List<?> selection= getSelectionFromWidget();
fEntries.removeAll(selection);
setInput(fEntries);
notifyChanged();
}
}
});
}
/* (non-Javadoc)
* @see org.eclipse.jdt.internal.debug.ui.launcher.IClasspathViewer#setEntries(org.eclipse.jdt.launching.IRuntimeClasspathEntry[])
*/
@Override
public void setEntries(IRuntimeClasspathEntry[] entries) {
fEntries.clear();
for (int i = 0; i < entries.length; i++) {
fEntries.add(entries[i]);
}
setInput(fEntries);
notifyChanged();
}
/* (non-Javadoc)
* @see org.eclipse.jdt.internal.debug.ui.launcher.IClasspathViewer#getEntries()
*/
@Override
public IRuntimeClasspathEntry[] getEntries() {
return fEntries.toArray(new IRuntimeClasspathEntry[fEntries.size()]);
}
/* (non-Javadoc)
* @see org.eclipse.jdt.internal.debug.ui.launcher.IClasspathViewer#addEntries(org.eclipse.jdt.launching.IRuntimeClasspathEntry[])
*/
@Override
public void addEntries(IRuntimeClasspathEntry[] entries) {
IStructuredSelection sel = (IStructuredSelection)getSelection();
if (sel.isEmpty()) {
for (int i = 0; i < entries.length; i++) {
if (!fEntries.contains(entries[i])) {
fEntries.add(entries[i]);
}
}
} else {
int index = fEntries.indexOf(sel.getFirstElement());
for (int i = 0; i < entries.length; i++) {
if (!fEntries.contains(entries[i])) {
fEntries.add(index, entries[i]);
index++;
}
}
}
setSelection(new StructuredSelection(entries));
refresh();
notifyChanged();
}
/**
* Enables/disables this viewer. Note the control is not disabled, since
* we still want the user to be able to scroll if required to see the
* existing entries. Just actions should be disabled.
*/
public void setEnabled(boolean enabled) {
fEnabled = enabled;
// fire selection change to update actions
setSelection(getSelection());
}
/* (non-Javadoc)
* @see org.eclipse.jdt.internal.debug.ui.launcher.IClasspathViewer#isEnabled()
*/
@Override
public boolean isEnabled() {
return fEnabled;
}
/**
* Sets the launch configuration context for this viewer, if any
*/
public void setLaunchConfiguration(ILaunchConfiguration configuration) {
if (getLabelProvider() != null) {
((RuntimeClasspathEntryLabelProvider)getLabelProvider()).setLaunchConfiguration(configuration);
}
}
public void addEntriesChangedListener(IEntriesChangedListener listener) {
fListeners.add(listener);
}
public void removeEntriesChangedListener(IEntriesChangedListener listener) {
fListeners.remove(listener);
}
/* (non-Javadoc)
* @see org.eclipse.jdt.internal.debug.ui.launcher.IClasspathViewer#notifyChanged()
*/
@Override
public void notifyChanged() {
for (IEntriesChangedListener listener : fListeners) {
listener.entriesChanged(this);
}
}
/* (non-Javadoc)
* @see org.eclipse.jdt.internal.debug.ui.launcher.IClasspathViewer#indexOf(org.eclipse.jdt.launching.IRuntimeClasspathEntry)
*/
@Override
public int indexOf(IRuntimeClasspathEntry entry) {
return fEntries.indexOf(entry);
}
/* (non-Javadoc)
* @see org.eclipse.jdt.internal.debug.ui.launcher.IClasspathViewer#getShell()
*/
@Override
public Shell getShell() {
return getControl().getShell();
}
/* (non-Javadoc)
* @see org.eclipse.jdt.internal.debug.ui.launcher.IClasspathViewer#updateSelection(int, org.eclipse.jface.viewers.IStructuredSelection)
*/
@Override
public boolean updateSelection(int actionType, IStructuredSelection selection) {
return isEnabled();
}
}