/*
 * 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 <code>TextArea</code> objects expose the <a title="http://dev.w3.org/html5/spec/the-button-element.html#the-textarea-element" class=" external" rel="external" href="http://dev.w3.org/html5/spec/the-button-element.html#the-textarea-element" target="_blank">HTMLTextAreaElement</a> (or 
<span><a rel="custom" href="https://developer.mozilla.org/en/HTML">HTML 4</a></span> <code><a title="http://www.w3.org/TR/DOM-Level-2-HTML/html.html#ID-24874179" class="external" rel="external" href="http://www.w3.org/TR/DOM-Level-2-HTML/html.html#ID-24874179" target="_blank">HTMLTextAreaElement</a></code>) interface, which provides special properties and methods (beyond the regular <a title="en/DOM/element" rel="internal" href="https://developer.mozilla.org/en/DOM/element">element</a> object interface they also have available to them by inheritance) for manipulating the layout and presentation of <code><a rel="custom" href="https://developer.mozilla.org/en/HTML/Element/textarea">&lt;textarea&gt;</a></code>
 elements.
  */
public interface TextAreaElement extends Element {


  /**
    * Reflects the 

<code><a rel="custom" href="https://developer.mozilla.org/en/HTML/Element/textarea#attr-autofocus">autofocus</a></code>
 HTML&nbsp;attribute, indicating that the control should have input focus when the page loads
    */
  boolean isAutofocus();

  void setAutofocus(boolean arg);


  /**
    * Reflects the 

<code><a rel="custom" href="https://developer.mozilla.org/en/HTML/Element/textarea#attr-cols">cols</a></code>
 HTML attribute, indicating the visible width of the text area.
    */
  int getCols();

  void setCols(int arg);


  /**
    * The control's default value, which behaves like the <strong><a title="en/DOM/element.textContent" rel="internal" href="https://developer.mozilla.org/En/DOM/Node.textContent">textContent</a></strong> property.
    */
  String getDefaultValue();

  void setDefaultValue(String arg);

  String getDirName();

  void setDirName(String arg);


  /**
    * Reflects the 

<code><a rel="custom" href="https://developer.mozilla.org/en/HTML/Element/textarea#attr-disabled">disabled</a></code>
 HTML attribute, indicating that the control is not available for interaction.
    */
  boolean isDisabled();

  void setDisabled(boolean arg);


  /**
    * <p>The containing form element, if this element is in a form. If this element is not contained in a form element:</p> <ul> <li>
<span><a rel="custom" href="https://developer.mozilla.org/en/HTML/HTML5">HTML5</a></span> this can be the 

<code><a rel="custom" href="https://developer.mozilla.org/en/HTML/Element/form#attr-id">id</a></code>
 attribute of any <code><a rel="custom" href="https://developer.mozilla.org/en/HTML/Element/form">&lt;form&gt;</a></code>
 element in the same document.</li> <li>
<span><a rel="custom" href="https://developer.mozilla.org/en/HTML">HTML 4</a></span> this must be <code>null</code>.</li> </ul>
    */
  FormElement getForm();


  /**
    * A list of <code><a rel="custom" href="https://developer.mozilla.org/en/HTML/Element/label">&lt;label&gt;</a></code>
 elements that are labels for this element.
    */
  NodeList getLabels();


  /**
    * Reflects the 

<code><a rel="custom" href="https://developer.mozilla.org/en/HTML/Element/textarea#attr-maxlength">maxlength</a></code>
 HTML&nbsp;attribute, indicating the maximum number of characters the user can enter. This constraint is evaluated only when the value changes.
    */
  int getMaxLength();

  void setMaxLength(int arg);


  /**
    * Reflects 

<code><a rel="custom" href="https://developer.mozilla.org/en/HTML/Element/textarea#attr-name">name</a></code>
 HTML attribute, containing the name of the control.
    */
  String getName();

  void setName(String arg);


  /**
    * Reflects the 

<code><a rel="custom" href="https://developer.mozilla.org/en/HTML/Element/textarea#attr-placeholder">placeholder</a></code>
 HTML attribute, containing a hint to the user about what to enter in the control.
    */
  String getPlaceholder();

  void setPlaceholder(String arg);


  /**
    * Reflects the 

<code><a rel="custom" href="https://developer.mozilla.org/en/HTML/Element/textarea#attr-readonly">readonly</a></code>
 HTML attribute, indicating that the user cannot modify the value of the control.
    */
  boolean isReadOnly();

  void setReadOnly(boolean arg);


  /**
    * Reflects the 

<code><a rel="custom" href="https://developer.mozilla.org/en/HTML/Element/textarea#attr-required">required</a></code>
 HTML attribute, indicating that the user must specify a value before submitting the form.
    */
  boolean isRequired();

  void setRequired(boolean arg);


  /**
    * Reflects the 

<code><a rel="custom" href="https://developer.mozilla.org/en/HTML/Element/textarea#attr-rows">rows</a></code>
 HTML attribute, indicating the number of visible text lines for the control.
    */
  int getRows();

  void setRows(int arg);


  /**
    * The direction in which selection occurred. This is "forward" if selection was performed in the start-to-end direction of the current locale, or "backward" for the opposite direction. This can also be "none"&nbsp;if the direction is unknown."
    */
  String getSelectionDirection();

  void setSelectionDirection(String arg);


  /**
    * The index of the end of selected text. 
<span><a rel="custom" href="https://developer.mozilla.org/en/HTML/HTML5">HTML5</a></span> If no text is selected, contains the index of the character that follows the input cursor. On being set, the control behaves as if <strong>setSelectionRange</strong>() had been called with this as the second argument, and <strong>selectionStart</strong> as the first argument.
    */
  int getSelectionEnd();

  void setSelectionEnd(int arg);


  /**
    * The index of the beginning of selected text. 
<span><a rel="custom" href="https://developer.mozilla.org/en/HTML/HTML5">HTML5</a></span> If no text is selected, contains the index of the character that follows the input cursor. On being set, the control behaves as if <strong>setSelectionRange</strong>() had been called with this as the first argument, and <strong>selectionEnd</strong> as the second argument.
    */
  int getSelectionStart();

  void setSelectionStart(int arg);


  /**
    * The codepoint length of the control's value.
    */
  int getTextLength();


  /**
    * The string <code>textarea</code>.
    */
  String getType();


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


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


  /**
    * The raw value contained in the control.
    */
  String getValue();

  void setValue(String arg);


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


  /**
    * Reflects the 

<code><a rel="custom" href="https://developer.mozilla.org/en/HTML/Element/textarea#attr-wrap">wrap</a></code>
 HTML attribute, indicating how the control wraps text.
    */
  String getWrap();

  void setWrap(String arg);


  /**
    * Returns false if the button is a candidate for constraint validation, and it does not satisfy its constraints. In this case, it also fires an <code>invalid</code> event at the control. It returns true if the control is not a candidate for constraint validation, or if it satisfies its constraints.
    */
  boolean checkValidity();


  /**
    * Selects the contents of the control.
    */
  void select();


  /**
    * Sets a custom validity message for the element. If this message is not the empty string, then the element is suffering from a custom validity error, and does not validate.
    */
  void setCustomValidity(String error);


  /**
    * Selects a range of text, and sets <code>selectionStart</code> and <code>selectionEnd</code>. If either argument is greater than the length of the value, it is treated as pointing to the end of the value. If <code>end</code> is less than <code>start</code>, then both are treated as the value of <code>end</code>.
    */
  void setSelectionRange(int start, int end);


  /**
    * Selects a range of text, and sets <code>selectionStart</code> and <code>selectionEnd</code>. If either argument is greater than the length of the value, it is treated as pointing to the end of the value. If <code>end</code> is less than <code>start</code>, then both are treated as the value of <code>end</code>.
    */
  void setSelectionRange(int start, int end, String direction);
}