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GwtUpload library: client and server classes (compatible with: Gwt 1.6.x,1.7.x,2.0.x)

There is a newer version: 1.0.3

/*
 * Copyright 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.gwt.user.client.ui;

// HasEnabled is an interface new in gwt-2.1.x. 
// The only reason to be distributed with gwtupload is to allow people
// using gwt-2.0.x to use the library.
/**
 * A widget that implements this interface can be put in an "enabled"
 * or "disabled" state.
 */
public interface HasEnabled {

  /**
   * Returns true if the widget is enabled, false if not.
   */
  boolean isEnabled();

  /**
   * Sets whether this widget is enabled.
   *
   * @param enabled true to enable the widget, false
   *          to disable it
   */
  void setEnabled(boolean enabled);
}