ru.codeinside.gses.webui.components.ContentWindowChanger.java Source code

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Here is the source code for ru.codeinside.gses.webui.components.ContentWindowChanger.java

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/*
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 * Copyright (c) 2013, MPL CodeInside http://codeinside.ru
 */

package ru.codeinside.gses.webui.components;

import ru.codeinside.gses.webui.components.api.Changer;

import com.vaadin.ui.Component;
import com.vaadin.ui.ComponentContainer;
import com.vaadin.ui.Window;

public class ContentWindowChanger implements Changer {

    private static final long serialVersionUID = 3140438519838984935L;
    private Component current;
    private Component previos;
    private Window window;

    public ContentWindowChanger(Window window) {
        this.window = window;
        current = window.getContent();
    }

    @Override
    public void set(Component newComponent, String name) {
        window.setCaption(name);
        window.setContent((ComponentContainer) newComponent);
        current = newComponent;
    }

    @Override
    public void change(Component newComponent) {
        previos = current;
        current = newComponent;
        window.setContent((ComponentContainer) current);
    }

    @Override
    public void back() {
        final Component newComponent = previos;
        previos = null;
        current = newComponent;
        window.setContent((ComponentContainer) current);
    }

    @Override
    public void clear() {
        current = null;
        previos = null;
        window.setContent((ComponentContainer) current);
    }
}