IntelliJ-IdeaVim/src/com/maddyhome/idea/vim/action/AbstractCommandAction.java

package com.maddyhome.idea.vim.action;

/*
 * IdeaVim - A Vim emulator plugin for IntelliJ Idea
 * Copyright (C) 2003 Rick Maddy
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */

import com.intellij.openapi.actionSystem.AnAction;
import com.intellij.openapi.actionSystem.AnActionEvent;
import com.intellij.openapi.actionSystem.DataContext;
import com.maddyhome.idea.vim.KeyHandler;
import com.maddyhome.idea.vim.command.Command;
import com.maddyhome.idea.vim.command.CommandState;

/**
 */
public abstract class AbstractCommandAction extends AnAction
{
    public final void actionPerformed(AnActionEvent event)
    {
        CommandState state = CommandState.getInstance();
        Command cmd = state.getCommand();
        if (!execute(event.getDataContext(), cmd))
        {
            KeyHandler.indicateError();
        }
    }

    protected abstract boolean execute(DataContext context, Command cmd);
}