zentao/lib/zin/wg/textarea/v1.php

<?php
namespace zin;

class textarea extends wg
{
    /**
     * @var mixed[]
     */
    protected static $defineProps = array(
        'name?: string',
        'id?: string',
        'class?: string',
        'required?: bool',
        'placeholder?: string',
        'rows?: int',
        'cols?: int',
        'value?: string',
        'autoHeight?: bool'
    );

    /**
     * @var mixed[]
     */
    protected static $defaultProps = array(
        'class' => 'form-control',
        'rows' => 10
    );

    /**
     * @param mixed $child
     */
    protected function onAddChild($child)
    {
        if(is_string($child) && !$this->props->has('value'))
        {
            $this->setProp('value', $child);
            return false;
        }

        return $child;
    }

    protected function build()
    {
        $autoHeight = $this->prop('autoHeight');
        if($autoHeight) $this->setProp('rows', null);

        return h::textarea
        (
            set($this->props->pick(array('name', 'id', 'class', 'placeholder', 'rows', 'cols', 'disabled', 'readonly'))),
            $this->prop('required') ? setClass('is-required') : null,
            $this->prop('value'),
            $autoHeight ? on::init()->do('$element.autoHeight()') : null,
            $this->children()
        );
    }
}