<?php
if( ! class_exists('acf_field_textarea') ) :
class acf_field_textarea extends acf_field {
/*
* initialize
*
* This function will setup the field type data
*
* @type function
* @date 5/03/2014
* @since 5.0.0
*
* @param n/a
* @return n/a
*/
function initialize() {
// vars
$this->name = 'textarea';
$this->label = __("Text Area",'acf');
$this->defaults = array(
'default_value' => '',
'new_lines' => '',
'maxlength' => '',
'placeholder' => '',
'rows' => ''
);
}
/*
* render_field()
*
* Create the HTML interface for your field
*
* @param $field - an array holding all the field's data
*
* @type action
* @since 3.6
* @date 23/01/13
*/
function render_field( $field ) {
// vars
$atts = array();
$keys = array( 'id', 'class', 'name', 'value', 'placeholder', 'rows', 'maxlength' );
$keys2 = array( 'readonly', 'disabled', 'required' );
// rows
if( !$field['rows'] ) {
$field['rows'] = 8;
}
// atts (value="123")
foreach( $keys as $k ) {
if( isset($field[ $k ]) ) $atts[ $k ] = $field[ $k ];
}
// atts2 (disabled="disabled")
foreach( $keys2 as $k ) {
if( !empty($field[ $k ]) ) $atts[ $k ] = $k;
}
// remove empty atts
$atts = acf_clean_atts( $atts );
// return
acf_textarea_input( $atts );
}
/*
* render_field_settings()
*
* Create extra options for your field. This is rendered when editing a field.
* The value of $field['name'] can be used (like bellow) to save extra data to the $field
*
* @param $field - an array holding all the field's data
*
* @type action
* @since 3.6
* @date 23/01/13
*/
function render_field_settings( $field ) {
// default_value
acf_render_field_setting( $field, array(
'label' => __('Default Value','acf'),
'instructions' => __('Appears when creating a new post','acf'),
'type' => 'textarea',
'name' => 'default_value',
));
// placeholder
acf_render_field_setting( $field, array(
'label' => __('Placeholder Text','acf'),
'instructions' => __('Appears within the input','acf'),
'type' => 'text',
'name' => 'placeholder',
));
// maxlength
acf_render_field_setting( $field, array(
'label' => __('Character Limit','acf'),
'instructions' => __('Leave blank for no limit','acf'),
'type' => 'number',
'name' => 'maxlength',
));
// rows
acf_render_field_setting( $field, array(
'label' => __('Rows','acf'),
'instructions' => __('Sets the textarea height','acf'),
'type' => 'number',
'name' => 'rows',
'placeholder' => 8
));
// formatting
acf_render_field_setting( $field, array(
'label' => __('New Lines','acf'),
'instructions' => __('Controls how new lines are rendered','acf'),
'type' => 'select',
'name' => 'new_lines',
'choices' => array(
'wpautop' => __("Automatically add paragraphs",'acf'),
'br' => __("Automatically add <br>",'acf'),
'' => __("No Formatting",'acf')
)
));
}
/*
* format_value()
*
* This filter is applied to the $value after it is loaded from the db and before it is returned to the template
*
* @type filter
* @since 3.6
* @date 23/01/13
*
* @param $value (mixed) the value which was loaded from the database
* @param $post_id (mixed) the $post_id from which the value was loaded
* @param $field (array) the field array holding all the field options
*
* @return $value (mixed) the modified value
*/
function format_value( $value, $post_id, $field ) {
// bail early if no value or not for template
if( empty($value) || !is_string($value) ) {
return $value;
}
// new lines
if( $field['new_lines'] == 'wpautop' ) {
$value = wpautop($value);
} elseif( $field['new_lines'] == 'br' ) {
$value = nl2br($value);
}
// return
return $value;
}
/**
* validate_value
*
* Validates a field's value.
*
* @date 29/1/19
* @since 5.7.11
*
* @param (bool|string) Whether the value is vaid or not.
* @param mixed $value The field value.
* @param array $field The field array.
* @param string $input The HTML input name.
* @return (bool|string)
*/
function validate_value( $valid, $value, $field, $input ){
// Check maxlength.
// Note: Due to the way strlen (and mb_strlen) work, line breaks count as two characters in PHP, but not in Javascript (or HTML).
// To avoid incorrectly calculating the length, replace double line breaks.
if( $field['maxlength'] && mb_strlen(str_replace("\r\n", "\n", wp_unslash($value))) > $field['maxlength'] ) {
return sprintf( __('Value must not exceed %d characters', 'acf'), $field['maxlength'] );
}
// Return.
return $valid;
}
}
// initialize
acf_register_field_type( 'acf_field_textarea' );
endif; // class_exists check
?>