DragDropTest.java

/*
 * Copyright 2009 Fred Sauer
 *
 * 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.allen_sauer.gwt.dnd.test.client;

import com.google.gwt.core.client.EntryPoint;
import com.google.gwt.core.client.GWT;
import com.google.gwt.core.client.Scheduler;
import com.google.gwt.core.client.Scheduler.ScheduledCommand;
import com.google.gwt.user.client.ui.DialogBox;
import com.google.gwt.user.client.ui.HTML;
import com.google.gwt.user.client.ui.RootPanel;

/**
 * EntryPoint class for demonstrating and testing drag-and-drop library.
 */
public final class DragDropTest implements EntryPoint {

  private static native String getCompatMode()
  /*-{
    return $doc.compatMode;
  }-*/;

  @Override
  public void onModuleLoad() {
    // set uncaught exception handler
    GWT.setUncaughtExceptionHandler(new GWT.UncaughtExceptionHandler() {

      @Override
      public void onUncaughtException(Throwable throwable) {
        String text = "Uncaught exception: ";
        while (throwable != null) {
          StackTraceElement[] stackTraceElements = throwable.getStackTrace();
          text += throwable.toString() + "\n";
          for (StackTraceElement element : stackTraceElements) {
            text += "    at " + element + "\n";
          }
          throwable = throwable.getCause();
          if (throwable != null) {
            text += "Caused by: ";
          }
        }
        DialogBox dialogBox = new DialogBox(true, false);
        dialogBox.getElement().getStyle().setProperty("backgroundColor", "#ABCDEF");
        System.err.print(text);
        text = text.replaceAll(" ", " ");
        dialogBox.setHTML("<pre>" + text + "</pre>");
        dialogBox.center();
      }
    });

    // use a deferred command so that the handler catches onModuleLoad2() exceptions
    Scheduler.get().scheduleDeferred(new ScheduledCommand() {
      @Override
      public void execute() {
        onModuleLoad2();
      }
    });
  }

  public void onModuleLoad2() {
    RootPanel.get().add(new HTML("DragDropTest is in <b>" + getCompatMode() + "</b> mode."));
    try {
      MouseDragHandlerTest mouseDragHandlerTest = new MouseDragHandlerTest();
      mouseDragHandlerTest.gwtSetUp();
      mouseDragHandlerTest.allTestsHack();
    } catch (Exception e) {
      throw new RuntimeException(e);
    }
  }
}