/*
 * Copyright 2010 Red Hat, Inc. and/or its affiliates.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.drools.eclipse.flow.common.editor;

import org.eclipse.gef.ContextMenuProvider;
import org.eclipse.gef.GraphicalViewer;
import org.eclipse.gef.ui.actions.ActionRegistry;
import org.eclipse.gef.ui.actions.GEFActionConstants;
import org.eclipse.jface.action.IAction;
import org.eclipse.jface.action.IMenuManager;
import org.eclipse.ui.actions.ActionFactory;

/**
 * Common implementation of a ContextMenuProvider.
 */
public class GenericContextMenuProvider extends ContextMenuProvider {

    private ActionRegistry actionRegistry;

    public GenericContextMenuProvider(GraphicalViewer viewer,
            ActionRegistry registry) {
        super(viewer);
        setActionRegistry(registry);
    }

    public void buildContextMenu(IMenuManager menu) {
        GEFActionConstants.addStandardActionGroups(menu);

        IAction action = getActionRegistry().getAction(
                ActionFactory.UNDO.getId());
        menu.appendToGroup(GEFActionConstants.GROUP_UNDO, action);

        action = getActionRegistry().getAction(ActionFactory.REDO.getId());
        menu.appendToGroup(GEFActionConstants.GROUP_UNDO, action);

        action = getActionRegistry().getAction(ActionFactory.DELETE.getId());
        if (action.isEnabled()) {
            menu.appendToGroup(GEFActionConstants.GROUP_EDIT, action);
        }
    }

    private ActionRegistry getActionRegistry() {
        return actionRegistry;
    }

    public void setActionRegistry(ActionRegistry registry) {
        actionRegistry = registry;
    }

}