com.pronoiahealth.olhie.client.features.impl.MainWindowResizeFeature.java Source code

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Here is the source code for com.pronoiahealth.olhie.client.features.impl.MainWindowResizeFeature.java

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/*******************************************************************************
 * Copyright (c) 2013 Pronoia Health LLC.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Pronoia Health LLC - initial API and implementation
 *******************************************************************************/
package com.pronoiahealth.olhie.client.features.impl;

import javax.enterprise.event.Event;
import javax.inject.Inject;

import com.google.gwt.event.logical.shared.ResizeEvent;
import com.google.gwt.event.logical.shared.ResizeHandler;
import com.google.gwt.event.shared.HandlerRegistration;
import com.google.gwt.user.client.Window;
import com.pronoiahealth.olhie.client.features.AbstractClientFeature;
import com.pronoiahealth.olhie.client.shared.events.local.WindowResizeEvent;

/**
 * MainWindowResizeFeature.java<br/>
 * Responsibilities:<br/>
 * 1.
 * 
 * @author John DeStefano
 * @version 1.0
 * @since Oct 24, 2013
 * 
 */
public class MainWindowResizeFeature extends AbstractClientFeature {

    @Inject
    private Event<WindowResizeEvent> windowResizeEvent;

    private HandlerRegistration windowResizeHandlerRegistration;

    /**
     * Constructor
     * 
     */
    public MainWindowResizeFeature() {
    }

    /**
     * Add resize handler and fire windowResizeEvent
     * 
     * @see com.pronoiahealth.olhie.client.features.ClientFeature#activate()
     */
    @Override
    public boolean activate() {
        windowResizeHandlerRegistration = Window.addResizeHandler(new ResizeHandler() {
            @Override
            public void onResize(ResizeEvent event) {
                windowResizeEvent.fire(new WindowResizeEvent());
            }
        });
        return true;
    }

    /**
     * Remove handler
     * 
     * @see com.pronoiahealth.olhie.client.features.ClientFeature#deactivate()
     */
    @Override
    public boolean deactivate() {
        if (windowResizeHandlerRegistration != null) {
            windowResizeHandlerRegistration.removeHandler();
            windowResizeHandlerRegistration = null;
        }
        return true;
    }

}