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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.debug.internal;

import com.google.gwt.user.client.ui.Widget;
import com.vaadin.client.ApplicationConnection;
import com.vaadin.client.ValueMap;

/**
 * A Section is displayed as a tab in the {@link VDebugWindow}.
 *
 * @since 7.1
 * @author Vaadin Ltd
 */
public interface Section {

    /**
     * Returns a button that will be used to activate this section, displayed as
     * a tab in {@link VDebugWindow}.
     * 
     * The same instance must be returned each time this method is
     * called.
     * 
     * 
     * The button should preferably only have an icon (no caption), and should
     * have a longer description as title (tooltip).
     * 
     *
     * @return section id
     */
    public DebugButton getTabButton();

    /**
     * Returns a widget that is placed on top of the Section content when the
     * Section (tab) is active in the {@link VDebugWindow}.
     *
     * @return section controls
     */
    public Widget getControls();

    /**
     * Returns a widget that is the main content of the section, displayed when
     * the section is active in the {@link VDebugWindow}.
     *
     * @return
     */
    public Widget getContent();

    /**
     * Called when the section is activated in {@link VDebugWindow}. Provides an
     * opportunity to e.g start timers, add listeners etc.
     */
    public void show();

    /**
     * Called when the section is deactivated in {@link VDebugWindow}. Provides
     * an opportunity to e.g stop timers, remove listeners etc.
     */
    public void hide();

    public void meta(ApplicationConnection ac, ValueMap meta);

    public void uidl(ApplicationConnection ac, ValueMap uidl);
}