Source: components/textarea/Textarea.js

// Generated by github.com/steida/coffee2closure 0.1.12
goog.provide('spark.components.Textarea');
goog.require('spark.components.Field');
goog.require('goog.ui.Textarea');

/**
  Texarea component of the framework.
  Extended from Field component to be consistent with rest of the framework.
  However it uses `goog.ui.Textarea` in the background. This is because
  goog handles resizing the textarea to fit its content pretty good. This
  might be a disadvantage for the filesize. I need to consider it in the future.

  @constructor
  @export
  @param   {Object=} options Class options.
  @param   {*=} data Class data
  @extends {spark.components.Field}
 */
spark.components.Textarea = function(options, data) {
  if (options == null) {
    options = {};
  }
  options.tagName = options['tagName'] = 'textarea';
  this.getCssClass(options, 'textarea');
  spark.components.Textarea.superClass_.constructor.call(this, options, data);
  this.decorate_();
  this.resize();
}
goog.inherits(spark.components.Textarea, spark.components.Field);

/**
  Decore our textarea from `goog.ui.Textarea`.
  This is the painless way to resize the textarea to fit its content.

  @protected
 */
spark.components.Textarea.prototype.decorate_ = function() {
  this.textarea_ = new goog.ui.Textarea(this.getOptions().value);
  return this.textarea_.decorate(this.getElement());
};

/**
  Sets the value and calls the resize method to adjust height of the textarea.

  @export
  @override
 */
spark.components.Textarea.prototype.setValue = function(value) {
  spark.components.Textarea.superClass_.setValue.apply(this, arguments);
  return this.resize();
};

/**
  Helper method to resize textarea to fit height for the value inside.

  @export
 */
spark.components.Textarea.prototype.resize = function() {
  if (!this.textarea_) {
    return;
  }
  return this.textarea_.resize();
};

/**
  Disposes the goog.ui.Textarea instance and calls the super to continue.

  @export
  @override
 */
spark.components.Textarea.prototype.destroy = function() {
  if (!this.isDestroyed()) {
    this.textarea_.disposeInternal();
    this.textarea_ = null;
  }
  return spark.components.Textarea.superClass_.destroy.apply(this, arguments);
};