/**
 * Copyright (C) 2015 Valkyrie RCP
 *
 * 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.valkyriercp.command.support;

import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.valkyriercp.widget.Widget;

import javax.swing.*;

/**
 * Base class for commands that use widgets. The widget can be injected or found in the context through its id.
 */
public abstract class AbstractWidgetCommand extends ApplicationWindowAwareCommand
        implements
        ApplicationContextAware
{

    private String widgetBeanId = null;

    private Widget widget;

    private ApplicationContext applicationContext;

    protected AbstractWidgetCommand(String commandId) {
        super(commandId);
    }

    public void setWidget(Widget widget)
    {
        this.widget = widget;
    }

    protected Widget getWidget()
    {
        if (this.widget == null && this.widgetBeanId != null)
            this.widget = applicationContext.getBean(widgetBeanId, Widget.class);
        return this.widget;
    }

    public void setApplicationContext(ApplicationContext applicationContext) throws BeansException
    {
        this.applicationContext = applicationContext;
    }

    public ApplicationContext getApplicationContext()
    {
        return applicationContext;
    }

    protected final JComponent getWidgetComponent()
    {
        if (getWidget() == null)
            return new JPanel();
        return getWidget().getComponent();
    }

    public String getWidgetBeanId()
    {
        return widgetBeanId;
    }

    public void setWidgetBeanId(String widgetBeanId)
    {
        this.widgetBeanId = widgetBeanId;
    }
}