org.unitime.timetable.gwt.mobile.client.MobileClient.java Source code

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Here is the source code for org.unitime.timetable.gwt.mobile.client.MobileClient.java

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/*
 * Licensed to The Apereo Foundation under one or more contributor license
 * agreements. See the NOTICE file distributed with this work for
 * additional information regarding copyright ownership.
 *
 * The Apereo Foundation licenses this file to you 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 org.unitime.timetable.gwt.mobile.client;

import java.util.logging.Logger;

import org.unitime.timetable.gwt.client.Client;

import com.google.gwt.core.client.GWT;
import com.google.gwt.core.client.RunAsyncCallback;
import com.google.gwt.core.client.Scheduler;
import com.google.gwt.core.client.Scheduler.ScheduledCommand;
import com.google.gwt.dom.client.Document;
import com.google.gwt.dom.client.Element;
import com.google.gwt.dom.client.MetaElement;
import com.google.gwt.dom.client.NodeList;
import com.google.gwt.user.client.DOM;
import com.google.gwt.user.client.ui.RootPanel;
import com.googlecode.mgwt.dom.client.event.orientation.OrientationChangeEvent;
import com.googlecode.mgwt.dom.client.event.orientation.OrientationChangeHandler;
import com.googlecode.mgwt.ui.client.MGWT;
import com.googlecode.mgwt.ui.client.MGWTSettings;

/**
 * @author Tomas Muller
 */
public class MobileClient extends Client {
    public static Logger sLogger = Logger.getLogger(MobileClient.class.getName());

    @Override
    public void onModuleLoadDeferred() {
        MGWTSettings settings = new MGWTSettings();
        settings.setViewPort(new Viewport());
        settings.setFullscreen(true);
        settings.setPreventScrolling(false);
        settings.setIconUrl("images/unitime-phone.png");
        settings.setFixIOS71BodyBug(true);

        MGWT.applySettings(settings);

        MGWT.addOrientationChangeHandler(new OrientationChangeHandler() {
            @Override
            public void onOrientationChanged(OrientationChangeEvent event) {
                NodeList<Element> tags = Document.get().getElementsByTagName("meta");
                for (int i = 0; i < tags.getLength(); i++) {
                    MetaElement meta = (MetaElement) tags.getItem(i);
                    if (meta.getName().equals("viewport")) {
                        meta.setContent(new Viewport().getContent());
                    }
                }
            }
        });

        super.onModuleLoadDeferred();

        // load components
        for (final MobileComponents c : MobileComponents.values()) {
            final RootPanel p = RootPanel.get(c.id());
            if (p != null) {
                Scheduler.get().scheduleDeferred(new ScheduledCommand() {
                    @Override
                    public void execute() {
                        initComponentAsync(p, c);
                    }
                });
            }
            if (p == null && c.isMultiple()) {
                NodeList<Element> x = getElementsByName(c.id());
                if (x != null && x.getLength() > 0)
                    for (int i = 0; i < x.getLength(); i++) {
                        Element e = x.getItem(i);
                        e.setId(DOM.createUniqueId());
                        final RootPanel q = RootPanel.get(e.getId());
                        Scheduler.get().scheduleDeferred(new ScheduledCommand() {
                            @Override
                            public void execute() {
                                initComponentAsync(q, c);
                            }
                        });
                    }
            }
        }
    }

    public void initComponentAsync(final RootPanel panel, final MobileComponents comp) {
        GWT.runAsync(new RunAsyncCallback() {
            public void onSuccess() {
                comp.insert(panel);
            }

            public void onFailure(Throwable reason) {
            }
        });
    }

    public native static int getScreenWidth() /*-{
                                              if ($wnd.orientation == 90 || $wnd.orientation == -90)
                                              return ($wnd.screen.width > $wnd.screen.height ? $wnd.screen.width : $wnd.screen.height);
                                              else
                                              return ($wnd.screen.width < $wnd.screen.height ? $wnd.screen.width : $wnd.screen.height);
                                              }-*/;

    public static class Viewport extends MGWTSettings.ViewPort {
        @Override
        public String getContent() {
            int sw = getScreenWidth();
            if (sw < 800) {
                return "initial-scale=" + (sw / 800.0) + ",minimum-scale=" + (sw / 3200.0) + ",maximum-scale="
                        + (sw / 200.0) + ",width=800,user-scalable=yes";
            } else {
                return "initial-scale=1.0,minimum-scale=0.25,maximum-scale=1.0,width=device-width,user-scalable=yes";
            }
        }
    }
}