class-wp-fields-settings.php
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<?php
/**
* Class for registering settings and sections and for display of the settings form(s).
* For detailed instructions see: https://github.com/keesiemeijer/WP-Settings
*
* @link https://wordpress.org/plugins/woocommerce-role-based-price/
* @package Role Based Price For WooCommerce
* @subpackage Role Based Price For WooCommerce/WordPress/Settings
* @since 3.0
* @version 2.0
* @author keesiemeijer
*/
if( ! class_exists('WooCommerce_Role_Based_Price_Settings_WP_Fields') ) {
class WooCommerce_Role_Based_Price_Settings_WP_Fields {
public $version = 2.0;
/**
* Validated settings errors
*
* @since 0.1
*
* @var array
*/
public $settings_errors;
/**
* constructor
*/
public function __construct($errors = array()) {
$this->settings_errors = (array) $errors;
}
/**
* Displays a text input setting field.
*
* @param array $args
* @param string $type Type attribute
*/
public function callback_text($args) {
$args['size'] = ( isset($args['size']) && $args['size'] ) ? $args['size'] : 'regular';
$type = ! empty($args['text_type']) ? esc_attr($args['text_type']) : 'text';
$args = $this->get_arguments($args); // escapes all attributes
$value = (string) esc_attr($this->get_option($args));
$error = $this->get_setting_error($args['id']);
$html = sprintf('<input type="%6$s" id="%1$s_%2$s" name="%1$s[%2$s]" value="%3$s"%4$s%5$s/>', $args['section'], $args['id'], $value, $args['attr'], $error, $type);
echo $args['before'] . $html . $args['after'] . $this->description($args['desc']);
}
/**
* Displays a textarea.
*
* @param array $args
*/
public function callback_textarea($args) {
$size = ( isset($args['size']) && $args['size'] ) ? $args['size'] : 'regular';
$args = $this->get_arguments($args); // escapes all attributes
$value = (string) esc_textarea($this->get_option($args));
$error = $this->get_setting_error($args['id']);
$html = sprintf('<textarea id="%1$s_%2$s" name="%1$s[%2$s]"%4$s%5$s>%3$s</textarea>', $args['section'], $args['id'], $value, $args['attr'], $error);
echo $args['before'] . $html . $args['after'] . $this->description($args['desc']);
}
/**
* Displays a textarea.
*
* @param array $args
*/
public function callback_richtext($args) {
$settings = isset($args['richtext_settings']) ? $args['richtext_settings'] : array();
$size = ( isset($args['size']) && $args['size'] ) ? $args['size'] : 'regular';
$args = $this->get_arguments($args); // escapes all attributes
$value = $this->get_option($args);
$error = $this->get_setting_error($args['id']);
$settings['textarea_name'] = $args['section'] . '[' . $args['id'] . ']';
$content = wp_editor($value, $args['id'], $settings);
echo $args['before'] . $content . $args['after'] . $this->description($args['desc']);
}
/**
* Displays a select dropdown.
*
* @param array $args
*/
public function callback_select($args) {
$args = $this->get_arguments($args); // escapes all attributes
$value = array_map('esc_attr', array_values((array) $this->get_option($args)));
$multiple = ( preg_match('/multiple="multiple"/', strtolower($args['attr'])) ) ? '[]' : '';
$value = ( '[]' === $multiple ) ? $value : $value[0];
$html = sprintf('<select id="%1$s_%2$s" name="%1$s[%2$s]%4$s"%3$s>', $args['section'], $args['id'], $args['attr'], $multiple);
foreach( (array) $args['options'] as $opt => $label ) {
if( '[]' === $multiple ) {
$selected = ( in_array($opt, $value) ) ? ' selected="selected" ' : '';
} else {
$selected = selected($value, $opt, FALSE);
}
$html .= sprintf('<option value="%s"%s>%s</option>', $opt, $selected, $label);
}
$html .= sprintf('</select>');
echo $args['before'] . $html . $args['after'] . $this->description($args['desc']);
}
/**
* Displays a single checkbox.
*
* @param array $args
*/
public function callback_checkbox($args) {
$args = $this->get_arguments($args); // escapes all attributes
$value = (string) esc_attr($this->get_option($args));
$error = $this->get_setting_error($args['id'], ' style="border: 1px solid red; padding: 2px 1em 2px 0; "');
$html = '';
$input = sprintf('<input type="checkbox" id="%1$s_%2$s" name="%1$s[%2$s]" value="on"%4$s%5$s />', $args['section'], $args['id'], $value, checked($value, 'on', FALSE), $args['attr']);
$html .= sprintf('<label for="%1$s_%2$s"%5$s>%3$s %4$s</label>', $args['section'], $args['id'], $input, $args['desc'], $error);
echo $html . '';
}
/**
* Displays multiple checkboxes.
*
* @param array $args
*/
public function callback_multicheckbox($args) {
$args = $this->get_arguments($args); // escapes all attributes
$value = array_map('esc_attr', array_values((array) $this->get_option($args)));
$count = count($args['options']);
$html = '<fieldset>';
$i = 0;
foreach( (array) $args['options'] as $opt => $label ) {
$error = $this->get_setting_error($opt, ' style="border: 1px solid red; padding: 2px 1em 2px 0; "');
$checked = ( in_array($opt, $value) ) ? ' checked="checked" ' : '';
$input = sprintf('<input type="checkbox" id="%1$s_%2$s_%3$s" name="%1$s[%2$s][%3$s]" value="%3$s"%4$s%5$s />', $args['section'], $args['id'], $opt, $checked, $args['attr']);
$html .= sprintf('<label for="%1$s_%2$s_%4$s"%6$s>%3$s %5$s</label>', $args['section'], $args['id'], $input, $opt, $label, $error);
$html .= ( isset($args['row_after'][$opt]) && $args['row_after'][$opt] ) ? $args['row_after'][$opt] : '';
$html .= ( ++$i < $count ) ? '<br/>' : '';
}
echo $html . '</fieldset>' . $this->description($args['desc']);
}
/**
* Displays radio buttons.
*
* @param array $args
*/
public function callback_radio($args) {
$args = $this->get_arguments($args); // escapes all attributes
$value = (string) esc_attr($this->get_option($args));
$options = array_keys((array) $args['options']);
// make sure one radio button is checked
if( empty($value) && ( isset($options[0]) && $options[0] ) ) {
$value = $options[0];
} else if( ! empty($value) && ( isset($options[0]) && $options[0] ) ) {
if( ! in_array($value, $options) )
$value = $options[0];
}
$html = '<fieldset>';
$i = 0;
$count = count($args['options']);
foreach( (array) $args['options'] as $opt => $label ) {
$input = sprintf('<input type="radio" id="%1$s_%2$s_%3$s" name="%1$s[%2$s]" value="%3$s"%4$s%5$s />', $args['section'], $args['id'], $opt, checked($value, $opt, FALSE), $args['attr']);
$html .= sprintf('<label for="%1$s_%2$s_%4$s">%3$s%5$s</label>', $args['section'], $args['id'], $input, $opt, ' <span>' . $label . '</span>');
$html .= ( isset($args['row_after'][$opt]) && $args['row_after'][$opt] ) ? $args['row_after'][$opt] : '';
$html .= ( ++$i < $count ) ? '<br/>' : '';
}
echo '</fieldset>' . $html . $this->description($args['desc']);
}
/**
* Displays type 'content' field.
*
* @param array $args
*/
public function callback_content($args) {
if( isset($args['content']) )
echo $args['content'];
if( isset($args['desc']) )
echo $this->description($args['desc']);
}
/**
* Displays field with the action hook '{$page_hook}_add_extra_field'.
*
* @param array $args
*/
function callback_extra_field($args) {
if( isset($args['callback']) && $args['callback'] ) {
if( isset($args['page_hook']) && $args['page_hook'] )
do_action($args['page_hook'] . '_add_extra_field', $args);
}
}
/**
* Returns a field description.
*
* @param string $desc Description of field.
*/
public function description($desc = '') {
if( $desc ) {
//return sprintf( '<p class="description">%s</p>', $desc );
}
}
/**
* Returns validation errors for a settings field.
*
* @param string $setting_id Settings field ID.
* @param string $style Style to override the default error style.
*
* @return string Empty string or inline style attribute.
*/
protected function get_setting_error($setting_id, $attr = '') {
$display_error = '';
if( ! empty($this->settings_errors) ) {
foreach( $this->settings_errors as $error ) {
if( isset($error['setting']) && $error['setting'] === $setting_id ) {
if( '' === $attr ) {
// todo: don't use inline styles
$display_error = ' style="border: 1px solid red;"';
} else {
$display_error = $attr;
}
}
}
}
return $display_error;
}
/**
* Escapes and creates additional attributes for a setting field.
*
* @param string|array $args Arguments of a setting field.
* @param string $input Type of field.
* @param string $size Size of field (class name).
*
* @return array All arguments and attributes
*/
protected function get_arguments($args = '', $class = FALSE) {
// escape section, id and options used in attributes
$args['section'] = esc_attr($args['section']);
$args['id'] = esc_attr($args['id']);
if( isset($args['options']) && $args['options'] ) {
$options = array();
foreach( (array) $args['options'] as $key => $value ) {
$options[esc_attr($key)] = $value;
}
$args['options'] = $options;
}
// additional parameters
$attr_string = '';
$defaults = $attr = array();
if( isset($args['attr']) && $args['attr'] ) {
$attr = $args['attr'];
}
// set defaults for a textarea field
if( 'textarea' === $args['type'] ) {
$defaults = array( 'rows' => '5', 'cols' => '55' );
}
// todo: add action to add additional defaults
$attr['class'] = isset($attr['class']) ? trim($attr['class']) : '';
if( isset($args['size']) && $args['size'] ) {
if( 'text' === $args['type'] || 'textarea' === $args['type'] ) {
$attr['class'] .= sprintf(' %1$s-%2$s', $args['size'], $args['type']);
}
}
if( $class ) {
if( ! preg_match('/\s' . preg_quote((string) $class, '/') . '\s/', $attr['class']) ) {
$attr['class'] = ' ' . (string) $class;
}
}
if( '' === $attr['class'] ) {
unset($attr['class']);
}
// create attribute string
foreach( $attr as $key => $arg ) {
$arg = ( 'class' === $arg ) ? sanitize_html_class($arg) : esc_attr($arg);
$attr_string .= ' ' . trim($key) . '="' . trim($arg) . '"';
}
$args['attr'] = $attr_string;
return $args;
}
/**
* Returns the value of a setting field.
*
* @param array $args Arguments of setting field
*
* @return string
*/
public function get_option($args) {
if( isset($args['value']) ) {
return $args['value'];
}
// get the value for the setting field from the database
$options = get_option($args['section']);
// return the value if it exists
if( isset($options[$args['id']]) ) {
return $options[$args['id']];
}
// return the default value
return ( isset($args['default']) ) ? $args['default'] : '';
}
} // class
} // class exists