ToggleHandler.java

/**
 * Copyright (c) 2010 MATSUFUJI Hideharu <matsufuji2008@gmail.com>,
 *               2011 KUBO Atsuhiro <kubo@iteman.jp>,
 * All rights reserved.
 *
 * This file is part of MakeGood.
 *
 * 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
 */

package com.piece_framework.makegood.ui.handlers;

import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.jface.action.ActionContributionItem;
import org.eclipse.jface.action.IAction;
import org.eclipse.jface.action.IToolBarManager;
import org.eclipse.ui.IViewPart;

import com.piece_framework.makegood.ui.views.ResultView;
import com.piece_framework.makegood.ui.views.ViewOpener;

public abstract class ToggleHandler extends AbstractHandler {
    @Override
    public Object execute(ExecutionEvent event) throws ExecutionException {
        IViewPart view = ViewOpener.find(ResultView.VIEW_ID);
        if (view == null) return null;
        IToolBarManager manager = view.getViewSite().getActionBars().getToolBarManager();
        if (manager == null) return null;
        ActionContributionItem item = (ActionContributionItem) manager.find(getActionId());
        if (item == null) return null;
        IAction action = item.getAction();
        action.setChecked(!action.isChecked());
        action.run();

        return null;
    }

    protected abstract String getActionId();
}