com.google.api.services.samples.calendar.appengine.client.CalendarGwtSample.java Source code

Introduction

Here is the source code for com.google.api.services.samples.calendar.appengine.client.CalendarGwtSample.java

Source

/*
 * Copyright (c) 2010 Google Inc.
 * 
 * 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.google.api.services.samples.calendar.appengine.client;

import com.google.api.services.samples.calendar.appengine.shared.AuthenticationException;
import com.google.api.services.samples.calendar.appengine.shared.GwtCalendar;
import com.google.gwt.core.client.EntryPoint;
import com.google.gwt.core.client.GWT;
import com.google.gwt.user.client.Window;
import com.google.gwt.user.client.rpc.AsyncCallback;
import com.google.gwt.user.client.ui.FlexTable;
import com.google.gwt.user.client.ui.RootPanel;

import java.util.List;

/**
 * Main entry-point for the Calendar GWT sample.
 * 
 * @author Yaniv Inbar
 */
public class CalendarGwtSample implements EntryPoint {

    CalendarsFrame calendarsFrame;
    List<GwtCalendar> calendars;

    static final CalendarServiceAsync SERVICE = GWT.create(CalendarService.class);

    @Override
    public void onModuleLoad() {
        calendarsFrame = new CalendarsFrame(this);
        RootPanel.get("main").add(calendarsFrame);
        // "loading calendars..."
        FlexTable calendarsTable = calendarsFrame.calendarsTable;
        calendarsTable.setText(0, 0, "Loading Calendars...");
        calendarsTable.getCellFormatter().addStyleName(0, 0, "methodsHeaderRow");
        // import calendars
        SERVICE.getCalendars(new AsyncCallback<List<GwtCalendar>>() {

            @Override
            public void onFailure(Throwable caught) {
                handleFailure(caught);
            }

            @Override
            public void onSuccess(List<GwtCalendar> result) {
                calendars = result;
                calendarsFrame.addButton.setEnabled(true);
                refreshTable();
            }
        });
    }

    void refreshTable() {
        FlexTable calendarsTable = calendarsFrame.calendarsTable;
        calendarsTable.removeAllRows();
        calendarsTable.setText(0, 1, "Calendar Title");
        calendarsTable.getCellFormatter().addStyleName(0, 1, "methodsHeaderRow");
        for (int i = 0; i < calendars.size(); i++) {
            GwtCalendar calendar = calendars.get(i);
            calendarsTable.setWidget(i + 1, 0, new CalendarButtons(this, calendar, i));
            calendarsTable.setText(i + 1, 1, calendar.title);
        }
    }

    static void handleFailure(Throwable caught) {
        if (caught instanceof AuthenticationException) {
            Window.Location.reload();
        } else {
            caught.printStackTrace();
            Window.alert("ERROR: " + caught.getMessage());
        }
    }
}