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Vaadin is a web application framework for Rich Internet Applications (RIA). Vaadin enables easy development and maintenance of fast and secure rich web applications with a stunning look and feel and a wide browser support. It features a server-side architecture with the majority of the logic running on the server. Ajax technology is used at the browser-side to ensure a rich and interactive user experience.

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/*
 * Copyright 2012 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 elemental.html;
import elemental.dom.Element;
import elemental.dom.NodeList;

import elemental.events.*;
import elemental.util.*;
import elemental.dom.*;
import elemental.html.*;
import elemental.css.*;
import elemental.stylesheets.*;

import java.util.Date;

/**
  * DOM Button objects expose the HTMLButtonElement 
HTML5 (or HTMLButtonElement 
HTML 4) interface, which provides properties and methods (beyond the element object interface they also have available to them by inheritance) for manipulating the layout and presentation of button elements.
  */
public interface ButtonElement extends Element {


  /**
    * The control should have input focus when the page loads, unless the user overrides it, for example by typing in a different control. Only one form-associated element in a document can have this attribute specified.
    */
  boolean isAutofocus();

  void setAutofocus(boolean arg);


  /**
    * The control is disabled, meaning that it does not accept any clicks.
    */
  boolean isDisabled();

  void setDisabled(boolean arg);


  /**
    * The form that this button is associated with. If the button is a descendant of a form element, then this attribute is the ID of that form element.
 If the button is not a descendant of a form element, then:
  
HTML5 The attribute can be the ID of any form element in the same document.
 
HTML 4 The attribute is null.
 
    */
  FormElement getForm();


  /**
    * The URI of a program that processes information submitted by the button. If specified, this attribute overrides the 

action
 attribute of the <form>
 element that owns this element.
    */
  String getFormAction();

  void setFormAction(String arg);

  String getFormEnctype();

  void setFormEnctype(String arg);


  /**
    * The HTTP method that the browser uses to submit the form. If specified, this attribute overrides the 

method
 attribute of the <form>
 element that owns this element.
    */
  String getFormMethod();

  void setFormMethod(String arg);


  /**
    * Indicates that the form is not to be validated when it is submitted. If specified, this attribute overrides the 

enctype
 attribute of the <form>
 element that owns this element.
    */
  boolean isFormNoValidate();

  void setFormNoValidate(boolean arg);


  /**
    * A name or keyword indicating where to display the response that is received after submitting the form. If specified, this attribute overrides the 

target
 attribute of the <form>
 element that owns this element.
    */
  String getFormTarget();

  void setFormTarget(String arg);


  /**
    * A list of <label>
 elements that are labels for this button.
    */
  NodeList getLabels();


  /**
    * The name of the object when submitted with a form. 
HTML5 If specified, it must not be the empty string.
    */
  String getName();

  void setName(String arg);


  /**
    * Indicates the behavior of the button. This is an enumerated attribute with the following possible values:
  submit: The button submits the form. This is the default value if the attribute is not specified, 
HTML5 or if it is dynamically changed to an empty or invalid value.
 reset: The button resets the form.
 button: The button does nothing.
 
    */
  String getType();


  /**
    * A localized message that describes the validation constraints that the control does not satisfy (if any). This attribute is the empty string if the control is not a candidate for constraint validation (willValidate is false), or it satisfies its constraints.
    */
  String getValidationMessage();


  /**
    * The validity states that this button is in.
    */
  ValidityState getValidity();


  /**
    * The current form control value of the button. 
    */
  String getValue();

  void setValue(String arg);


  /**
    * Indicates whether the button is a candidate for constraint validation. It is false if any conditions bar it from constraint validation.
    */
  boolean isWillValidate();


  /**
    * Not supported for button elements.
    */
  boolean checkValidity();


  /**
    * Not supported for button elements.
    */
  void setCustomValidity(String error);
}