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/*******************************************************************************
* Copyright (c) 2009 Obeo.
* 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:
* Obeo - initial API and implementation
*******************************************************************************/
package org.eclipse.papyrus.navigator.actions;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;
import java.util.Map;
import org.eclipse.emf.edit.command.CommandParameter;
import org.eclipse.emf.edit.ui.action.CreateChildAction;
import org.eclipse.emf.transaction.TransactionalEditingDomain;
import org.eclipse.jface.action.IAction;
import org.eclipse.jface.action.IMenuManager;
import org.eclipse.jface.action.MenuManager;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.papyrus.infra.core.utils.EditorUtils;
import org.eclipse.ui.navigator.ICommonActionExtensionSite;
/**
* The Class CreateChildActions.
*
* @author <a href="mailto:jerome.benois@obeo.fr">Jerome Benois</a>
*/
public class CreateChildActionProvider extends AbstractSubmenuActionProvider {
protected Collection<IAction> createChildActions;
protected Map<String, Collection<IAction>> createChildSubmenuActions;
// @unused
protected IMenuManager createChildMenuManager;
/**
* {@inheritDoc}
*/
@Override
public void init(ICommonActionExtensionSite site) {
super.init(site);
}
/**
* {@inheritDoc}
*/
@Override
public void fillContextMenu(IMenuManager menu) {
super.fillContextMenu(menu);
ISelection selection = getContext().getSelection();
Collection<?> newChildDescriptors = null;
Object selectedElement = null;
if(selection instanceof IStructuredSelection && ((IStructuredSelection)selection).size() == 1) {
selectedElement = ((IStructuredSelection)selection).getFirstElement();
TransactionalEditingDomain domain = EditorUtils.getTransactionalEditingDomain();
if(domain == null) {
return;
}
newChildDescriptors = domain.getNewChildDescriptors(selectedElement, null);
}
createChildActions = generateCreateChildActions(newChildDescriptors, selection);
createChildSubmenuActions = extractSubmenuActions(createChildActions, "|");
MenuManager submenuManager = new MenuManager("New Child");
populateManager(submenuManager, createChildSubmenuActions, null);
populateManager(submenuManager, createChildActions, null);
menu.add(submenuManager);
}
/**
* Generate create child actions.
*
* @param descriptors
* the descriptors
* @param selection
* the selection
*
* @return the collection< i action>
*/
protected Collection<IAction> generateCreateChildActions(Collection<?> descriptors, ISelection selection) {
List<IAction> createChildActions = (List<IAction>)generateCreateChildActionsGen(descriptors, selection);
Collections.<IAction> sort(createChildActions, new Comparator<IAction>() {
public int compare(IAction a1, IAction a2) {
return a1.getText().compareTo(a2.getText());
}
});
return createChildActions;
}
/**
* Generate create child actions gen.
*
* @param descriptors
* the descriptors
* @param selection
* the selection
*
* @return the collection< i action>
*/
protected Collection<IAction> generateCreateChildActionsGen(Collection<?> descriptors, ISelection selection) {
Collection<IAction> actions = new ArrayList<IAction>();
if(descriptors != null) {
for(Object descriptor : descriptors) {
if(descriptor instanceof CommandParameter) {
actions.add(new CreateChildAction(EditorUtils.getTransactionalEditingDomain(), selection, descriptor));
}
}
}
return actions;
}
}
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