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Vaadin is a web application framework for Rich Internet Applications (RIA). Vaadin enables easy development and maintenance of fast and secure rich web applications with a stunning look and feel and a wide browser support. It features a server-side architecture with the majority of the logic running on the server. Ajax technology is used at the browser-side to ensure a rich and interactive user experience.

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/*
 * Copyright 2000-2016 Vaadin Ltd.
 *
 * 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 com.vaadin.client.ui.window;

import java.util.ArrayList;

import com.google.gwt.event.shared.GwtEvent;
import com.vaadin.client.ui.VWindow;

/**
 * Event for window order position updates.
 *
 * @since 8.0
 *
 * @author Vaadin Ltd
 */
public class WindowOrderEvent extends GwtEvent {

    private static final Type TYPE = new Type<>();

    private final ArrayList windows;

    /**
     * Creates a new event with the given order.
     *
     * @param windows
     *            The new order position for the VWindow
     */
    public WindowOrderEvent(ArrayList windows) {
        this.windows = windows;
    }

    @Override
    public Type getAssociatedType() {
        return TYPE;
    }

    /**
     * Returns windows in order.
     *
     * @return windows in the specific order
     */
    public VWindow[] getWindows() {
        return windows.toArray(new VWindow[windows.size()]);
    }

    @Override
    protected void dispatch(WindowOrderHandler handler) {
        handler.onWindowOrderChange(this);
    }

    /**
     * Gets the type of the event.
     *
     * @return the type of the event
     */
    public static Type getType() {
        return TYPE;
    }

}