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/*******************************************************************************
* Copyright (c) 2006, 2012 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.pde.internal.ui.commands;
import java.util.ArrayList;
import java.util.*;
import org.eclipse.core.commands.Category;
import org.eclipse.core.commands.Command;
import org.eclipse.core.commands.common.NotDefinedException;
import org.eclipse.jface.viewers.ITreeContentProvider;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.ui.commands.ICommandService;
public class CommandTreeContentProvider implements ITreeContentProvider {
protected final int F_CAT_CONTENT = 0; // category grouped content
protected final int F_CON_CONTENT = 1; // context grouped content
private ICommandService fComServ;
private TreeMap<Category, ArrayList<Command>> fCatMap; // mapping of commands to category
private TreeMap<?, ?> fConMap; // mapping of commands to context
private Viewer fViewer;
private int fCurContent = F_CAT_CONTENT;
public CommandTreeContentProvider(ICommandService comServ) {
fComServ = comServ;
init();
}
private void init() {
fCatMap = new TreeMap<Category, ArrayList<Command>>(new Comparator<Object>() {
public int compare(Object arg0, Object arg1) {
String comA = CommandList.getText(arg0);
String comB = CommandList.getText(arg1);
if (comA != null)
return comA.compareTo(comB);
return +1; // undefined ids should go last
}
});
fConMap = new TreeMap<Object, Object>();
Command[] commands = fComServ.getDefinedCommands();
for (int i = 0; i < commands.length; i++) {
/*
* IWorkbenchRegistryConstants.AUTOGENERATED_PREFIX = "AUTOGEN:::"
*/
// skip commands with autogenerated id's
if (commands[i].getId().startsWith("AUTOGEN:::")) //$NON-NLS-1$
continue;
// populate category map
try {
Category cat = commands[i].getCategory();
ArrayList<Command> list = fCatMap.get(cat);
if (list == null)
fCatMap.put(cat, list = new ArrayList<Command>());
list.add(commands[i]);
} catch (NotDefinedException e) {
continue;
}
// TODO: populate context map
// can we easily group commands by context?
}
}
public Object getParent(Object element) {
if (element instanceof Command)
try {
return ((Command) element).getCategory();
} catch (NotDefinedException e) {
// undefined category - should never hit this as these commands
// will not be listed
}
return null;
}
public void dispose() {
fCatMap.clear();
fConMap.clear();
}
public Object[] getChildren(Object parentElement) {
if (parentElement instanceof Category) {
ArrayList<?> list = fCatMap.get(parentElement);
if (list != null)
return list.toArray(new Command[list.size()]);
}
return null;
}
public boolean hasChildren(Object element) {
if (element instanceof Category) {
ArrayList<?> list = fCatMap.get(element);
if (list != null)
return list.size() > 0;
}
return false;
}
public Object[] getElements(Object inputElement) {
switch (fCurContent) {
case F_CAT_CONTENT :
return fCatMap.keySet().toArray();
case F_CON_CONTENT :
return new Object[0];
}
return null;
}
public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
fViewer = viewer;
}
public void refreshWithCategoryContent() {
fCurContent = F_CAT_CONTENT;
if (fViewer != null)
fViewer.refresh();
}
public void refreshWithContextContent() {
fCurContent = F_CON_CONTENT;
if (fViewer != null)
fViewer.refresh();
}
}
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