fr.univlorraine.mondossierweb.MdwUIProvider.java Source code

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Here is the source code for fr.univlorraine.mondossierweb.MdwUIProvider.java

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/**
 *
 *  ESUP-Portail MONDOSSIERWEB - Copyright (c) 2016 ESUP-Portail consortium
 *
 *
 *  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 fr.univlorraine.mondossierweb;

import javax.servlet.http.HttpServletRequest;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.mobile.device.Device;
import org.springframework.mobile.device.DeviceUtils;
import org.springframework.web.context.WebApplicationContext;

import org.springframework.web.context.support.WebApplicationContextUtils;

import com.vaadin.server.UIClassSelectionEvent;
import com.vaadin.server.UICreateEvent;
import com.vaadin.server.VaadinSession;
import com.vaadin.spring.server.SpringUIProvider;
import com.vaadin.ui.UI;

public class MdwUIProvider extends SpringUIProvider {

    private static final long serialVersionUID = -1535055076149004931L;

    private Logger LOG = LoggerFactory.getLogger(MdwUIProvider.class);

    public MdwUIProvider(WebApplicationContext webApplicationContext) {
        super(webApplicationContext);
        // TODO Auto-generated constructor stub
    }

    @Override
    public Class<? extends UI> getUIClass(UIClassSelectionEvent event) {

        //Rcupration du userAgent
        if (event != null && event.getRequest() != null && event.getRequest().getHeader("user-agent") != null) {
            String userAgent = event.getRequest().getHeader("user-agent").toLowerCase();
            LOG.debug("UA : " + userAgent);

            /* Device Detection */
            Device currentDevice = DeviceUtils.getCurrentDevice((HttpServletRequest) event.getRequest());
            // on teste que l'utilisateur est sur smartphone et avec un navigateur compatible webkit ou sous WP
            if (currentDevice.isMobile() && (userAgent.contains("webkit") || userAgent.contains("windows phone 8")
                    || userAgent.contains("windows phone 9"))) {
                //On affiche la page proposant une redirection vers la version Mobile
                LOG.debug("-FallbackTouchkit UI provided (" + userAgent + ")");
                return MdwFallbackTouchkitUI.class;
            } else {
                LOG.debug("-Fallback UI provided (" + userAgent + ")");
                //On va vers la version desktop
                return MainUI.class;
            }
        }
        //On va vers la version desktop
        return MainUI.class;
    }

    @Override
    public boolean isPreservedOnRefresh(UICreateEvent event) {
        return false;
    }

    @Override
    public UI createInstance(UICreateEvent event) {
        //Nom de la classe UI  utiliser
        String uiBeanNameObj = "";
        //Rcupration du userAgent
        String userAgent = event.getRequest().getHeader("user-agent").toLowerCase();

        /* Device Detection */
        Device currentDevice = DeviceUtils.getCurrentDevice((HttpServletRequest) event.getRequest());
        // on teste que l'utilisateur est sur smartphone et avec un navigateur compatible webkit ou sous WP
        if (currentDevice.isMobile() && (userAgent.contains("webkit") || userAgent.contains("windows phone 8")
                || userAgent.contains("windows phone 9"))) {
            //On affiche la page proposant une redirection vers la version Mobile
            LOG.debug("-FallbackTouchkit UI provided (" + userAgent + ")");
            uiBeanNameObj = "mdwFallbackTouchkitUI";
        } else {
            //On va vers la version desktop
            LOG.debug("-uiBeanNameObj = mainUI");
            uiBeanNameObj = "mainUI";
        }

        //Stored in VaadinSession to use it in
        // the ApplicationScope later to initialize vaadin application scope beans
        final Integer uiId = event.getUiId();
        VaadinSession.getCurrent().setAttribute("applicationScope.UiId", uiId);

        //On retourne l'UI dcide plus haut (desktop ou mobile)
        if (uiBeanNameObj instanceof String) {
            String uiBeanName = uiBeanNameObj.toString();
            return (UI) this.getWebApplicationContext().getBean(uiBeanName);
        }
        return super.createInstance(event);
    }

}