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<?php
namespace Gravity_Forms\Gravity_Forms\Settings\Fields;
use Gravity_Forms\Gravity_Forms\Settings\Fields;
use GFCommon;
defined( 'ABSPATH' ) || die();
class Textarea extends Base {
/**
* Field type.
*
* @since 2.5
*
* @var string
*/
public $type = 'textarea';
/**
* Allow HTML in field value.
*
* @since 2.5
*
* @var bool
*/
public $allow_html = false;
/**
* Initialize as Rich Text Editor.
*
* @since 2.5
*
* @var bool
*/
public $use_editor = false;
/**
* Initialize Textarea field.
*
* @since 2.5
*
* @param array $props Field properties.
* @param \Gravity_Forms\Gravity_Forms\Settings\Settings $settings Settings instance.
*/
public function __construct( $props, $settings ) {
parent::__construct( $props, $settings );
// Set default row count.
if ( ! isset( $this->rows ) ) {
$this->rows = 4;
}
// Set default editor height.
if ( ! isset( $this->editor_height ) ) {
$this->editor_height = 200;
}
}
private function get_editor_id() {
return esc_attr( $this->settings->get_input_name_prefix() ) . '_' . esc_attr( $this->name );
}
// # RENDER METHODS ------------------------------------------------------------------------------------------------
/**
* Render field.
*
* @since 2.5
*
* @return string
*/
public function markup() {
// Get value.
$value = $this->get_value();
// Initialize rich text editor.
if ( $this->use_editor ) {
// Create editor container.
$html = sprintf(
'<span class="mt-gaddon-editor mt-%s_%s"></span>',
esc_attr( $this->settings->get_input_name_prefix() ),
esc_attr( $this->name )
);
// Display description.
$html .= $this->get_description();
$html .= '<span class="' . esc_attr( $this->get_container_classes() ) . '">';
// Insert editor.
ob_start();
wp_editor(
$value,
$this->get_editor_id(),
array(
'autop' => false,
'editor_class' => $this->get_editor_class(),
'editor_height' => $this->editor_height,
)
);
$html .= ob_get_contents();
ob_end_clean();
// If field failed validation, add error icon.
$html .= $this->get_error_icon();
$html .= '</span>';
} else {
// Prepare markup.
// Display description.
$html = $this->get_description();
$html .= sprintf(
'<span class="%s"><textarea name="%s_%s" %s %s>%s</textarea>%s</span>',
esc_attr( $this->get_container_classes() ),
esc_attr( $this->settings->get_input_name_prefix() ),
esc_attr( $this->name ),
$this->get_describer() ? sprintf( 'aria-describedby="%s"', $this->get_describer() ) : '',
implode( ' ', $this->get_attributes() ),
esc_textarea( $value ),
// If field failed validation, add error icon.
$this->get_error_icon()
);
}
return $html;
}
/**
* Get the CSS classes for the rich text editor.
*
* @since 2.6
*
* @return string
*/
public function get_editor_class() {
$editor_class = ! is_null( $this->class ) ? $this->class : 'merge-tag-support mt-wp_editor mt-manual_position mt-position-right';
// If a rich text editor has custom classes and merge tag support, make sure it includes the 'mt-manual_position' class to prevent layout problems.
$classes = explode( ' ', $editor_class );
if ( in_array( 'merge-tag-support', $classes ) && ! in_array( 'mt-manual_position', $classes ) ) {
$editor_class .= ' mt-manual_position';
}
return $editor_class;
}
// # VALIDATION METHODS --------------------------------------------------------------------------------------------
/**
* Validate posted field value.
*
* @since 2.5
*
* @param string $value Posted field value.
*/
public function do_validation( $value ) {
// If field is required and value is missing, set field error.
if ( $this->required && rgblank( $value ) ) {
$this->set_error( rgobj( $this, 'error_message' ) );
}
$sanitized_value = $this->get_sanitized_value( $value );
// If posted and sanitized values match, we're done here.
if ( $value === $sanitized_value ) {
return;
}
// Failed validation. Prepare field error.
$message = sprintf(
"%s <a href='javascript:void(0);' onclick='%s' data-safe='%s'>%s</a>",
esc_html__( 'The text you have entered is not valid. For security reasons, some characters are not allowed. ', 'gravityforms' ),
$this->get_validation_correction_script(),
htmlspecialchars( $sanitized_value, ENT_QUOTES ),
esc_html__( 'Fix it', 'gravityforms' )
);
// Set field error.
$this->set_error( $message );
}
/**
* Gets the sanitized value of the user input.
*
* Textarea fields must explicitly opt in to allowing HTML, either by indicating the editor type or by passing the
* allow_html setting. In those cases, we run the content through wp_kses based on user permissions (users with
* the unfiltered_html capability can enter in raw html).
*
* By default, HTML is not allowed, so we simply sanitize the field, even if the user has permission to include
* unfiltered html.
*
* @since 2.5.2
*
* @param string $value The input value to sanitized.
*
* @return string
*/
private function get_sanitized_value( $value ) {
add_filter( 'safe_style_css', array( $this, 'disable_style_attr_parsing' ), 10, 1 );
$sanitized = ( $this->use_editor || $this->allow_html ) ? GFCommon::maybe_wp_kses( $value ) : sanitize_textarea_field( $value );
remove_filter( 'safe_style_css', array( $this, 'disable_style_attr_parsing' ), 10 );
return $sanitized;
}
public function disable_style_attr_parsing( $allowed ) {
return array();
}
/**
* Get the correction script for the field.
*
* @since 2.5.2
*
* @return string
*/
protected function get_validation_correction_script() {
$script = sprintf(
'jQuery("textarea[name=\"%s_%s\"]").val(jQuery(this).data("safe"));',
$this->settings->get_input_name_prefix(),
$this->name
);
return htmlspecialchars( $script, ENT_QUOTES );
}
}
Fields::register( 'textarea', '\Gravity_Forms\Gravity_Forms\Settings\Fields\Textarea' );