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<?php
namespace Gravity_Forms\Gravity_Forms\Settings;
use GFAPI;
use GFCommon;
use GF_Fields;
use GFForms;
use GFFormsModel;
use GF_Confirmation;
use WP_Error;
class_exists( '\GFForms' ) or die();
class Settings {
/**
* Prefix for the name of rendered input fields.
*
* @since 2.5
*
* @var string $field_prefix Input field name prefix.
*/
protected $input_name_prefix = '_gform_setting';
/**
* Capability required for saving settings.
*
* @since 2.5
*
* @var string
*/
protected $capability;
/**
* Fields to be rendered.
*
* @since 2.5
*
* @var array $fields Settings fields.
*/
protected $fields = array();
/**
* Flags whether settings display in tabs.
*
* @since 2.5
*
* @var bool
*/
protected $is_tabbed = false;
/**
* HTML to be rendered before displaying fields.
*
* @since 2.5
*
* @var callable
*/
protected $before_fields;
/**
* HTML to be rendered after displaying fields.
*
* @since 2.5
*
* @var callable
*/
protected $after_fields;
/**
* The current form being modified by the settings.
*
* @since 2.5
*
* @var integer
*/
protected $current_form;
/**
* Primary Save button to be displayed in header.
*
* @since 2.5
*
* @var array
*/
protected $save_button;
/**
* If save postback has been processed.
*
* @since 2.5
*
* @var bool
*/
private $processed_postback = false;
/**
* The previous field values, used when processing postback.
*
* @since 2.5
*
* @var array
*/
private $_previous_values = array();
/**
* The current field values.
*
* @since 2.5
*
* @var array
*/
private $_saved_values = array();
/**
* Called when postback values are valid to save submitted settings.
*
* @since 2.5
*
* @var string|callable
*/
private $_save_callback = '';
/**
* Message to be displayed after save callback has been processed.
*
* @since 2.5
*
* @var string
*/
private $postback_message = '';
/**
* Determines validation message should be displayed.
*
* @since 2.5
*
* @var callable
*/
protected $postback_message_callback;
/**
* Enqueued scripts to register as no-conflict.
*
* @since 2.5
*
* @var array
*/
private $no_conflict_scripts = array();
/**
* Enqueued styles to register as no-conflict.
*
* @since 2.5
*
* @var array
*/
private $no_conflict_styles = array();
/**
* Initialize Settings instance.
*
* @since 2.5
*
* @param array $args
*/
public function __construct( $args = array() ) {
require_once 'class-fields.php';
// Set fields.
if ( rgar( $args, 'fields' ) ) {
$this->set_fields( $args['fields'] );
}
if ( rgar( $args, 'capability' ) ) {
$this->validate_capability( $args['capability'] );
$this->capability = $args['capability'];
}
if ( rgar( $args, 'before_fields' ) && is_callable( $args['before_fields'] ) ) {
$this->before_fields = $args['before_fields'];
}
if ( rgar( $args, 'after_fields' ) && is_callable( $args['after_fields'] ) ) {
$this->after_fields = $args['after_fields'];
}
if ( rgar( $args, 'save_button' ) && is_array( $args['save_button'] ) ) {
$this->add_save_button( $args['save_button'] );
}
if ( rgar( $args, 'current_form' ) ) {
$this->current_form = (int) $args['current_form'];
}
if ( rgar( $args, 'input_name_prefix' ) ) {
$this->input_name_prefix = (string) sanitize_html_class( $args['input_name_prefix'] );
}
if ( rgar( $args, 'initial_values' ) ) {
$this->set_values( $args['initial_values'] );
}
if ( rgar( $args, 'save_callback' ) ) {
$this->set_save_setting_callback( $args['save_callback'] );
}
if ( ! rgar( $args, 'save_callback' ) && rgar( $args, 'initial_values' ) && is_string( $args['initial_values'] ) && ! is_serialized( $args['initial_values'] ) ) {
$this->set_save_setting_callback( $args['initial_values'] );
}
if ( rgar( $args, 'postback_message_callback' ) ) {
$this->set_postback_message_callback( $args['postback_message_callback'] );
}
// Enqueue registered scripts/styles.
add_action( 'admin_enqueue_scripts', array( $this, 'action_admin_enqueue_scripts' ) );
// Register no-conflict scripts/styles.
add_filter( 'gform_noconflict_scripts', array( $this, 'filter_gform_noconflict_scripts' ) );
add_filter( 'gform_noconflict_styles', array( $this, 'filter_gform_noconflict_styles' ) );
}
/**
* Capabilities must be either strings or arrays - any other object will should throw an exception.
*
* @since 2.5
*
* @param mixed $capability The capability value to validate.
*/
private function validate_capability( $capability ) {
if ( is_array( $capability ) || is_string( $capability ) ) {
return;
}
throw new \InvalidArgumentException( 'Settings page capabilities must be an array or string.' );
}
// # SCRIPT ENQUEUEING ---------------------------------------------------------------------------------------------
/**
* Enqueue registered scripts and styles.
*
* @since 2.5
*/
public function action_admin_enqueue_scripts() {
// Enqueue scripts.
foreach ( $this->scripts() as $script ) {
// If conditions are not fulfilled, do not enqueue.
if ( ! $this->can_enqueue_script( rgar( $script, 'enqueue', array() ) ) ) {
continue;
}
// Add to no-conflict scripts array.
if ( ! in_array( $script['handle'], $this->no_conflict_scripts ) ) {
$this->no_conflict_scripts[] = $script['handle'];
}
// Enqueue script.
wp_enqueue_script(
$script['handle'],
rgar( $script, 'src', false ),
rgar( $script, 'deps', array() ),
rgar( $script, 'version', false ),
rgar( $script, 'in_footer', false )
);
// Localize script strings.
if ( rgar( $script, 'strings' ) ) {
wp_localize_script( $script['handle'], $script['handle'] . '_strings', $script['strings'] );
}
if ( isset( $script['callback'] ) && is_callable( $script['callback'] ) ) {
call_user_func( $script['callback'], $this );
}
}
// Enqueue styles.
foreach ( $this->styles() as $style ) {
// If conditions are not fulfilled, do not enqueue.
if ( ! $this->can_enqueue_script( rgar( $style, 'enqueue', array() ) ) ) {
continue;
}
// Add to no-conflict styles array.
if ( ! in_array( $style['handle'], $this->no_conflict_styles ) ) {
$this->no_conflict_styles[] = $style['handle'];
}
// Enqueue style.
wp_enqueue_style(
$style['handle'],
rgar( $style, 'src', false ),
rgar( $style, 'deps', array() ),
rgar( $style, 'version', false ),
rgar( $style, 'media', 'all' )
);
}
}
/**
* Registered styles to enqueue when displaying settings.
*
* @since 2.5
*
* @return array
*/
public function styles() {
// Define base styles.
$styles = array();
// Register field styles.
foreach ( $this->get_fields() as $group ) {
$styles = array_merge( $styles, $this->get_scripts_for_group( $styles, $group, true ) );
$styles = array_unique( $styles, SORT_REGULAR );
}
return $styles;
}
/**
* Registered scripts to enqueue when displaying settings.
*
* @since 2.5
*
* @return array
*/
public function scripts() {
$min = defined( 'SCRIPT_DEBUG' ) && SCRIPT_DEBUG || isset( $_GET['gform_debug'] ) ? '' : '.min';
// Define base scripts.
$scripts = array(
array(
'handle' => 'gform_settings_dependencies',
'src' => GFCommon::get_base_url() . "/includes/settings/js/dependencies{$min}.js",
'version' => GFForms::$version,
'enqueue' => array(
function() {
$dependencies = $this->get_live_dependencies();
return ! empty( $dependencies );
},
),
),
array(
'handle' => 'gform_settings_select_custom',
'src' => GFCommon::get_base_url() . "/includes/settings/js/select-custom{$min}.js",
'version' => GFForms::$version,
'enqueue' => array(
function() {
return $this->has_field_type( 'select_custom' );
}
),
),
array(
'handle' => 'gform_settings_tabs',
'src' => GFCommon::get_base_url() . "/includes/settings/js/tabs{$min}.js",
'version' => GFForms::$version,
'enqueue' => array(
function() {
return $this->is_tabbed;
},
),
),
);
// Register field scripts.
foreach ( $this->get_fields() as $group ) {
$scripts = array_merge( $scripts, $this->get_scripts_for_group( $scripts, $group ) );
$scripts = array_unique( $scripts, SORT_REGULAR );
}
return $scripts;
}
/**
* Get scripts/styles for a group of sections/fields.
*
* @since 2.5
*
* @param array $scripts Array of enqueued scripts.
* @param array $group Group of sections/fields.
* @param bool $styles Get styles instead of scripts.
*
* @return array
*/
private function get_scripts_for_group( $scripts, $group, $styles = false ) {
// Get nested key.
$nested_key = GFCommon::get_nested_key( $group );
foreach ( rgar( $group, $nested_key, array() ) as $item ) {
if ( is_object( $item ) ) {
$scripts = array_merge( $scripts, $styles ? $item->styles() : $item->scripts() );
$scripts = array_unique( $scripts, SORT_REGULAR );
}
if ( rgar( $item, 'fields', array() ) ) {
$scripts = array_merge( $scripts, $this->get_scripts_for_group( $scripts, $item, $styles ) );
$scripts = array_unique( $scripts, SORT_REGULAR );
}
}
return $scripts;
}
/**
* Determine if a script/style can be enqueued.
*
* @since 2.5
*
* @param array $conditions Required enqueuing conditions.
*
* @return bool
*/
private function can_enqueue_script( $conditions ) {
// If no conditions are defined, return.
if ( empty( $conditions ) ) {
return true;
}
// Get form.
$form = $this->get_current_form();
// Loop through conditions and test.
foreach ( $conditions as $condition ) {
// If condition is a callable, try it.
if ( is_callable( $condition ) ) {
$callback_response = call_user_func( $condition, $form, false );
if ( $callback_response ) {
return true;
}
} else {
$query_matches = isset( $condition['query'] ) ? $this->script_request_condition_matches( $_GET, $condition['query'] ) : true;
$post_matches = isset( $condition['post'] ) ? $this->script_request_condition_matches( $_POST, $condition['post'] ) : true;
$field_type_matches = isset( $condition['field_types'] ) ? $this->script_field_condition_matches( $condition['field_types'], $form ) : true;
if ( $query_matches && $post_matches && $field_type_matches ) {
return true;
}
}
}
return false;
}
/**
* Test a request condition.
*
* @since 2.5
*
* @param array $request Current request.
* @param array $query Condition query.
*
* @return bool
*/
private function script_request_condition_matches( $request, $query ) {
// Parse condition query.
parse_str( $query, $query_array );
foreach ( $query_array as $key => $value ) {
switch ( $value ) {
case '_notempty_':
if ( rgempty( $key, $request ) ) {
return false;
}
break;
case '_empty_':
if ( ! rgempty( $key, $request ) ) {
return false;
}
break;
default:
if ( rgar( $request, $key ) != $value ) {
return false;
}
break;
}
}
return true;
}
/**
* Test a field type condition.
*
* @since 2.5
*
* @param string|array $field_types Field types to check for.
* @param array $form Form object.
*
* @return bool
*/
private function script_field_condition_matches( $field_types, $form ) {
// Force field types to array.
if ( ! is_array( $field_types ) ) {
$field_types = array( $field_types );
}
// Get fields for form matching type.
$fields = GFAPI::get_fields_by_type( $form, $field_types );
if ( count( $fields ) > 0 ) {
foreach ( $fields as $field ) {
if ( $field->is_administrative() && ! $field->allowsPrepopulate && ! GFForms::get_page() ) {
continue;
}
return true;
}
}
return false;
}
/**
* Registers enqueued scripts to the no-conflict scripts whitelist.
*
* @since 2.5
*
* @param array $scripts Array of scripts to be whitelisted.
*
* @return array
*/
public function filter_gform_noconflict_scripts( $scripts ) {
return array_merge( $scripts, $this->no_conflict_scripts );
}
/**
* Registers enqueued styles to the no-conflict styles whitelist.
*
* @since 2.5
*
* @param array $styles Array of styles to be whitelisted.
*
* @return array
*/
public function filter_gform_noconflict_styles( $styles ) {
return array_merge( $styles, $this->no_conflict_styles );
}
// # RENDER METHODS ------------------------------------------------------------------------------------------------
/**
* Render fields.
* Handles enqueueing styles, processing postback.
*
* @since 2.5
*
* @param \GFAddOn $addon The Add-On responsible for rendering the settings page.
*/
public function render() {
// Save field values.
if ( self::is_save_postback() ) {
$this->process_postback();
}
if ( $this->postback_message_callback ) {
$this->postback_message = call_user_func( $this->postback_message_callback, $this->postback_message );
}
// Display validation message.
if ( ! empty( $this->postback_message ) ) {
// Get field errors.
$field_errors = $this->get_field_errors();
printf(
'<div class="alert %s" role="alert">%s</div>',
empty( $field_errors ) ? 'gforms_note_success' : 'gforms_note_error',
$this->postback_message
);
}
if ( rgget( 'subview' ) === 'confirmation' && rgget( 'duplicatedcid' ) ) {
GF_Confirmation::output_duplicate_confirmation_notice();
}
// Get sections.
$fields = $this->get_fields();
?>
<form id="gform-settings" class="gform_settings_form" data-js="page-loader" action="" method="post" enctype="multipart/form-data" novalidate>
<?php
if ( ! empty( $this->before_fields ) && is_callable( $this->before_fields ) ) {
echo call_user_func( $this->before_fields );
}
// If settings are tabbed, render tab navigation and tab content.
if ( $this->is_tabbed ) {
$this->render_tab_navigation();
foreach ( $fields as $tab ) {
$this->render_tab( $tab );
}
} else {
// Loop through and render each section.
foreach ( $fields as $section ) {
$this->render_section( $section );
}
}
// Get save button.
$save = $this->render_save_button();
if ( ! empty( $save ) ) {
printf( '<div class="gform-settings-save-container">%s</div>', $save );
}
if ( ! empty( $this->after_fields ) && is_callable( $this->after_fields ) ) {
echo call_user_func( $this->after_fields );
}
wp_nonce_field( 'gform_settings_save', 'gform_settings_save_nonce' );
?>
</form>
<?php
// Get live dependencies.
$live_dependencies = $this->get_live_dependencies();
// Enqueue live dependencies.
if ( ! empty( $live_dependencies ) ) {
echo '<script>';
foreach ( $live_dependencies as $dependency ) {
echo 'new GF_Settings_Dependencies( ' . wp_json_encode( $dependency ) . ' );';
}
echo '</script>';
}
}
/**
* Render tab navigation above settings sections.
*
* @since 2.5
*/
public function render_tab_navigation() {
// If settings are not tabbed, exit.
if ( ! $this->is_tabbed ) {
return;
}
// Get fields, initialize tabs array.
$fields = $this->get_fields();
$tabs = array();
// Get tab names, labels.
foreach ( $fields as $i => $tab ) {
$tabs[] = array(
'name' => $tab['id'],
'label' => rgar( $tab, 'label' ) ? $tab['label'] : rgar( $tab, 'title' ),
'dependency' => rgar( $tab, 'dependency', array() ),
);
}
// Get active tab.
$active_tab = $this->get_active_tab();
echo '<nav class="gform-settings-tabs__navigation" role="tablist">';
foreach ( $tabs as $i => $tab ) {
printf(
'<a href="#" role="tab" aria-selected="%3$s" id="gform-settings-tab-%2$s" data-tab="%2$s" class="%4$s"%5$s>%1$s</a>',
esc_html( $tab['label'] ),
esc_attr( $tab['name'] ),
$tab['name'] === $active_tab ? 'true' : 'false',
$tab['name'] === $active_tab ? 'active' : '',
! $this->is_dependency_met( $tab['dependency'] ) ? ' style="display:none;"' : ''
);
}
echo '</nav>';
printf(
'<input type="hidden" name="gform_settings_tab" value="%s" />',
esc_attr( $active_tab )
);
}
/**
* Render a single tab of fields.
*
* @since 2.5
*
* @param array $tab Tab properties.
*/
public function render_tab( $tab ) {
// Get active tab.
$active_tab = $this->get_active_tab();
// Open tab container.
printf(
'<div class="gform-settings-tabs__container%2$s" role="tabpanel" aria-hidden="%3$s" data-tab="%1$s" aria-labelledby="gform-settings-tab-%1$s">',
esc_attr( $tab['id'] ),
$tab['id'] === $active_tab ? ' active' : '',
$tab['id'] === $active_tab ? 'false' : 'true'
);
// Loop through and render each section.
foreach ( $tab['sections'] as $section ) {
$this->render_section( $section );
}
// Close tab container.
echo '</div>';
}
/**
* Render a single section of fields.
*
* @since 2.5
*
* @param array $section Section properties.
*/
public function render_section( $section ) {
// Prepare section classes.
$class = array( 'gform-settings-panel' );
// Add defined classes.
if ( rgar( $section, 'class' ) ) {
$section['class'] = explode( ' ', $section['class'] );
$class = array_merge( $class, $section['class'] );
}
if ( rgar( $section, 'title' ) || ( rgar( $section, 'collapsible' ) && rgar( $section, 'id' ) ) ) {
$class[] = 'gform-settings-panel--with-title';
}
// Add collapsible classes.
if ( rgar( $section, 'collapsible' ) && rgar( $section, 'id' ) ) {
$class[] = 'gform-settings-panel--collapsible';
// Add collapsed class.
if ( self::is_section_collapsed( $section ) ) {
$class[] = 'gform-settings-panel--collapsed';
}
}
// Add card layout class.
if ( self::has_card_layout( $section ) ) {
$class[] = 'gform-settings-panel--card';
}
// If dependency is not met for section, do not render if no live dependency.
// Otherwise, set section to hidden.
if ( ! $this->is_dependency_met( rgar( $section, 'dependency' ) ) && ! rgars( $section, 'dependency/live' ) ) {
return;
} else if ( ! $this->is_dependency_met( rgar( $section, 'dependency' ) ) ) {
$section['style'] = rgar( $section, 'style' ) . 'display:none;';
}
// Open section container.
printf(
'<fieldset id="%s" class="%s"%s>',
esc_attr( $this->get_section_id( $section ) ),
implode(' ', $class ),
rgar( $section, 'style' ) ? sprintf( ' style="%s"', esc_attr( $section['style'] ) ) : ''
);
// Add section header.
if ( rgar( $section, 'title' ) || ( rgar( $section, 'collapsible' ) && rgar( $section, 'id' ) ) ) {
// Display title.
if ( rgar( $section, 'title' ) ) {
printf(
'<legend class="gform-settings-panel__title gform-settings-panel__title--header">%s %s</legend>',
esc_html( $section['title'] ),
self::maybe_get_tooltip( $section )
);
}
// Display collapsible toggle.
if ( rgar( $section, 'collapsible' ) && rgar( $section, 'id' ) ) {
?>
<span class="gform-settings-panel__collapsible-control">
<input
type="checkbox"
id="gform_settings_section_collapsed_<?php echo esc_attr( $section['id'] ); ?>"
name="gform_settings_section_collapsed_<?php echo esc_attr( $section['id'] ); ?>"
value="1"
onclick="this.checked ? this.closest( '.gform-settings-panel' ).classList.add( 'gform-settings-panel--collapsed' ) : this.closest( '.gform-settings-panel' ).classList.remove( 'gform-settings-panel--collapsed' )"
<?php checked( true, self::is_section_collapsed( $section ), true ); ?>
/>
<label class="gform-settings-panel__collapsible-toggle" for="gform_settings_section_collapsed_uninstall"><span class="screen-reader-text"><?php printf( esc_html__( 'Toggle %s Section', 'gravityforms' ), esc_html( $section['title' ]) ); ?></span></label>
</span>
<?php
}
}
// Open settings table.
echo '<div class="gform-settings-panel__content">';
// Display section description.
if ( rgar( $section, 'description' ) ) {
printf( '<div class="gform-settings-description gform-kitchen-sink">%s</div>', $section['description'] );
}
/**
* Loop through fields and render.
*
* @var Fields\Base $field
*/
foreach ( rgar( $section, 'fields', array() ) as $field ) {
if ( is_wp_error( $field ) || is_array( $field ) ) {
continue;
}
$this->render_field( $field );
}
// Close table and section container.
echo '</div></fieldset>';
}
/**
* Render a single field.
*
* @since 2.5
*
* @param Fields\Base $field
*/
public function render_field( $field ) {
// If dependency is not met for field, do not render if no live dependency.
// Otherwise, set field to hidden.
if ( ! $this->is_dependency_met( rgobj( $field, 'dependency' ) ) && ! rgars( $field, 'dependency/live' ) ) {
return;
} else if ( ! $this->is_dependency_met( rgobj( $field, 'dependency' ) ) ) {
$field->hidden = true;
}
// Prepare hidden styling.
$hidden = rgar( $field, 'hidden' ) === true || rgar( $field, 'type' ) === 'hidden' ? ' style="display:none;"' : '';
printf(
'<div id="gform_setting_%s" class="gform-settings-field gform-settings-field__%s" %s>',
esc_attr( str_replace( array( '[', ']' ), array( '_', null ), $field->name ) ),
$field->type,
$hidden
);
// Display field label.
if ( rgobj( $field, 'label' ) ) {
printf(
'<div class="gform-settings-field__header"><label class="gform-settings-label" for="%s">%s%s</label>%s</div>',
esc_attr( $field->name ),
rgobj( $field, 'label' ),
$field->required ? '<span class="required">(' . __( 'Required', 'gravityforms' ) . ')</span>' : '',
self::maybe_get_tooltip( $field )
);
}
// Display field input.
echo $field->prepare_markup();
echo '</div>';
}
/**
* Determine if section is collapsed.
* If postback, uses state upon submission.
*
* @since 2.5
*
* @param array $props Section properties.
*
* @return bool
*/
private static function is_section_collapsed( $props = array() ) {
return empty( $_POST ) ? rgar( $props, 'is_collapsed' ) : (bool) rgpost( 'gform_settings_section_collapsed_' . $props['id'] );
}
/**
* Display Save button in page header.
*
* @since 2.5
*
* @param string $html Existing Save button HTML.
*
* @return string
*/
public function render_save_button( $html = '' ) {
/**
* If save button has not been created, initialize it.
* Save button has to be initialized separately due to translatable strings.
*/
if ( empty( $this->save_button ) ) {
$this->add_save_button();
}
// Get Save button properties.
$save_props = $this->save_button;
// Prepare Save button markup.
$html .= sprintf(
'<button type="submit" id="gform-settings-save" name="gform-settings-save" value="save" form="gform-settings" class="%2$s"%3$s>%1$s</button>',
esc_html( rgar( $save_props, 'value' ) ),
esc_attr( $save_props['class'] ),
! $this->is_dependency_met( rgar( $save_props, 'dependency' ) ) ? 'style="display:none;"' : ''
);
/**
* Modify the output of the settings save button.
*
* @since 2.5
*
* @param string $html HTML of the save button.
* @param \Gravity_Forms\Gravity_Forms\Settings\Settings $this Current instance of the Settings Framework.
*/
$html = apply_filters( 'gform_settings_save_button', $html, $this );
return $html;
}
/**
* Add default save button to a new settings section.
*
* @since 2.5
*
* @param array $props Save button properties.
*/
private function add_save_button( $props = array() ) {
$this->save_button = wp_parse_args(
$props,
array(
'name' => 'save',
'value' => esc_html__( 'Save Settings', 'gravityforms' ) . ' →',
'class' => 'primary button large',
'messages' => array(
'save' => esc_html__( 'Settings updated.', 'gravityforms' ),
'error' => esc_html__( 'There was an error while saving your settings.', 'gravityforms' ),
),
)
);
}
// # RENDER HELPER METHODS -----------------------------------------------------------------------------------------
/**
* Returns an array of fields that have a registered live dependency.
*
* @since 2.5
*
* @return array
*/
private function get_live_dependencies() {
// Initialize dependencies array.
$dependencies = array();
// Get fields.
$groups = $this->get_fields();
// Add save button to groups so its dependencies can be registered.
$groups[] = array(
'fields' => array(
$this->save_button,
),
);
// Loop through sections and fields, get field dependencies.
foreach ( $groups as $group ) {
// Get dependencies in group.
$dependencies = array_merge( $dependencies, $this->get_live_dependencies_for_group( $group ) );
// If group does not have live dependencies, skip.
if ( ! rgars( $group, 'dependency/live' ) ) {
continue;
}
// Prepare dependency.
$dependency = array(
'prefix' => $this->input_name_prefix,
'operator' => rgars( $group, 'dependency/operator' ) ? strtoupper( $group['dependency']['operator'] ) : 'ALL',
'target' => $this->get_target_for_live_dependency( $group ),
'fields' => rgars( $group, 'dependency/fields' ),
);
// If no target field is defined, skip.
if ( ! rgars( $dependency, 'target/field' ) ) {
continue;
}
// Remove brackets for field target.
if ( $dependency['target']['type'] === 'field' ) {
$dependency['target']['field'] = str_replace( array( '[', ']', ), array( '_', null ), $dependency['target']['field'] );
}
// Define callback.
if ( rgars( $group, 'dependency/callback/js' ) ) {
$dependency['callback'] = $group['dependency']['callback']['js'];
}
foreach ( $dependency['fields'] as $f => $_field ) {
// Get field type.
$dependency_field = $this->get_field( $_field['field'] );
$dependency['fields'][ $f ]['field_type'] = $dependency_field->type;
// If field is a checkbox, check options.
if ( rgar( $dependency_field, 'type' ) === 'checkbox' ) {
// If no values were provided or only provided value is "1", set to first choice name.
if ( ! rgar( $_field, 'values' ) || ( rgar( $_field, 'values' ) && is_array( $_field['values'] ) && $_field['values'][0] == 1 ) ) {
$choices = array_values( rgar( $dependency_field, 'choices', array() ) );
$dependency['fields'][ $f ]['values'] = array( rgars( $choices, '0/name' ) );
}
}
}
// Add to dependencies array.
$dependencies[ $dependency['target']['field'] ] = $dependency;
}
return $dependencies;
}
/**
* Returns an array of fields that have a registered live dependency for a specific group.
*
* @since 2.5
*
* @param array $group Group of sections or fields.
*
* @return array
*/
private function get_live_dependencies_for_group( $group ) {
$dependencies = array();
// Get nested key.
$nested_key = GFCommon::get_nested_key( $group );
// Loop through fields, add dependencies.
foreach ( rgar( $group, $nested_key, array() ) as $item ) {
if ( ! rgar( $item, 'id' ) ) {
$item['id'] = $this->get_section_id( $item );
}
// If field has nested fields, add dependencies.
if ( rgar( $item, 'sections' ) || rgar( $item, 'fields' ) ) {
$dependencies = array_merge( $dependencies, $this->get_live_dependencies_for_group( $item ) );
}
// If field does not have a live dependency, skip.
if ( ! rgars( $item, 'dependency/live' ) ) {
continue;
}
// Prepare dependency.
$dependency = array(
'prefix' => $this->input_name_prefix,
'operator' => rgars( $item, 'dependency/operator' ) ? strtoupper( $item['dependency']['operator'] ) : 'ALL',
'target' => $this->get_target_for_live_dependency( $item ),
'fields' => rgars( $item, 'dependency/fields' ),
);
// Override target type for save button.
if ( $dependency['target']['type'] === 'field' && rgar( $item, 'type' ) === 'save' ) {
$dependency['target']['type'] = 'save';
}
// If no target field is defined, skip.
if ( ! rgars( $dependency, 'target/field' ) && rgars( $dependency, 'target/type' ) !== 'save' ) {
continue;
}
// Remove brackets for field target.
if ( $dependency['target']['type'] === 'field' ) {
$dependency['target']['field'] = str_replace( array( '[', ']', ), array( '_', null ), $dependency['target']['field'] );
}
// Define callback.
if ( rgars( $item, 'dependency/callback/js' ) ) {
$dependency['callback'] = $item['dependency']['callback']['js'];
}
foreach ( $dependency['fields'] as $f => $_field ) {
// Get field type.
$dependency_field = $this->get_field( $_field['field'] );
$dependency['fields'][ $f ]['field_type'] = $dependency_field->type;
// If field is a checkbox, check options.
if ( rgar( $dependency_field, 'type' ) === 'checkbox' ) {
// If no values were provided or only provided value is "1", set to first choice name.
if ( ! rgar( $_field, 'values' ) || ( rgar( $_field, 'values' ) && is_array( $_field['values'] ) && $_field['values'][0] == 1 ) ) {
$choices = array_values( rgar( $dependency_field, 'choices', array() ) );
$dependency['fields'][ $f ]['values'] = array( rgars( $choices, '0/name' ) );
}
}
}
// Add to dependencies array.
$dependencies[ $dependency['target']['field'] ] = $dependency;
}
return $dependencies;
}
/**
* Returns the target type and field name/ID for live dependency.
*
* @since 2.5.13
*
* @param array $item Settings tab, section or field.
*
* @return array
*/
private function get_target_for_live_dependency( $item ) {
$target = array(
'type' => 'field',
'field' => rgar( $item, 'name' ),
);
if ( rgar( $item, 'sections' ) ) {
$target['type'] = 'tab';
$target['field'] = rgar( $item, 'id' );
} elseif ( rgar( $item, 'fields' ) && ! rgar( $item, 'type' ) ) {
$target['type'] = 'section';
$target['field'] = $this->get_section_id( $item );
}
return $target;
}
/**
* Get the section ID or a fallback if none is set.
*
* Dependencies rely on a section having an ID, so if a section ID isn't set, we need to generate one.
*
* @since 2.5.13
*
* @param array $section The settings section
*
* @return mixed|string
*/
private function get_section_id( $section ) {
$section_prefix = 'gform-settings-section-';
if ( rgar( $section, 'id' ) ) {
return $section_prefix . $section['id'];
} else {
return rgar( $section, 'title' ) ? $section_prefix . sanitize_title( $section['title'] ) : '';
}
}
/**
* Returns message to display when settings have been successfully saved.
*
* @since 2.5
*
* @return string
*/
public function get_save_success_message() {
$success_message = rgars( $this->save_button, 'messages/save' ) ? rgars( $this->save_button, 'messages/save' ) : rgars( $this->save_button, 'messages/success' );
return $success_message;
}
/**
* Returns message to display when settings could not be saved.
*
* @since 2.5
*
* @return string
*/
public function get_save_error_message() {
return rgars( $this->save_button, 'messages/error' );
}
/**
* Determines if the conditions to display a field or section have been met.
*
* @since 2.5
*
* @param string|array|callable|null $dependency Condition to be met.
*
* @return bool
*/
public function is_dependency_met( $dependency ) {
// If no dependency was provided, return.
if ( ! $dependency ) {
return true;
}
// If this is a legacy dependency, process the old way.
if ( ! rgar( $dependency, 'fields' ) ) {
return $this->is_legacy_dependency_met( $dependency );
}
// Handle callback dependency.
if ( rgars( $dependency, 'callback/php' ) && is_callable( $dependency['callback']['php'] ) ) {
return call_user_func( $dependency['callback']['php'], $this );
}
// Define operator, evaluated rules, dependency met.
$operator = rgar( $dependency, 'operator' ) ? strtoupper( $dependency['operator'] ) : 'ALL';
$evaluated_rules = 0;
$dependency_met = false;
// Loop through fields, evaluate rules.
foreach ( rgar( $dependency, 'fields' ) as $rule ) {
// Get field.
$field = $this->get_field( $rule['field'] );
// If field is a checkbox, check options.
if ( rgar( $field, 'type' ) === 'checkbox' ) {
// If no values were provided or only provided value is "1", set to first choice name.
if ( ! rgar( $rule, 'values' ) || ( rgar( $rule, 'values' ) && is_array( $rule['values'] ) && $rule['values'][0] == 1 ) ) {
$choices = array_values( rgar( $field, 'choices', array() ) );
$rule['values'] = array( rgars( $choices, '0/name' ) );
}
// Loop through values, check for checked checkbox.
foreach ( $rule['values'] as $value ) {
if ( $this->get_value( $value ) == 1 ) {
$evaluated_rules++;
continue 2;
}
}
continue;
}
// Get field value.
$field_value = $this->get_value( $rule['field'] );
// Force values to array.
if ( rgar( $rule, 'values' ) ) {
$rule['values'] = is_array( $rule['values'] ) ? $rule['values'] : array( $rule['values'] );
} else {
$rule['values'] = array( '_notempty_' );
}
// Loop through values and evaluate.
foreach ( $rule['values'] as $value ) {
if ( $value === '_notempty_' && ! rgblank( $field_value ) && $field_value != '0' ) {
$evaluated_rules++;
continue 2;
}
if ( $value === $field_value ) {
$evaluated_rules++;
continue 2;
}
}
}
// Determine if dependency was met based on rules evaluated and operator.
if ( 'ALL' === $operator && $evaluated_rules === count( $dependency['fields'] ) ) {
$dependency_met = true;
} elseif ( 'ANY' === $operator && $evaluated_rules > 0 ) {
$dependency_met = true;
}
return $dependency_met;
}
/**
* Determines if the conditions to display a field or section have been met.
* Handles legacy dependencies for pre-Gravity Forms 2.5.
*
* @since 2.5
*
* @param string|array|callable|null $dependency Condition to be met.
*
* @return bool
*/
public function is_legacy_dependency_met( $dependency ) {
// If no dependency was provided, return.
if ( ! $dependency ) {
return true;
}
// If a callback was provided, run it and return the result.
if ( is_callable( $dependency ) ) {
return call_user_func( $dependency, $this );
}
// Get dependency field and value.
if ( is_array( $dependency ) ) {
$dependency_field = rgar( $dependency, 'field' );
$dependency_value = rgar( $dependency, 'values' );
} else {
$dependency_field = $dependency;
$dependency_value = '_notempty_';
}
// Set dependency value to an array.
if ( ! is_array( $dependency_value ) ) {
$dependency_value = array( $dependency_value );
}
// Get current field value.
$current_value = $this->get_value( $dependency_field );
// Loop through dependency values, look for match.
foreach ( $dependency_value as $value ) {
// If values are a match, return.
if ( $current_value == $value ) {
return true;
}
// If value is not empty, return.
if ( '_notempty_' === $value && ! rgblank( $current_value ) ) {
return true;
}
}
return false;
}
/**
* Returns the markup for a tooltip, if provided.
*
* @since 2.5
*
* @param array|Fields\Base $props Field/Choice properties.
*
* @return string
*/
public static function maybe_get_tooltip( $props ) {
// Initialize return string.
$html = '';
// If a tooltip property exists, prepare tooltip.
if ( isset( $props['tooltip'] ) ) {
// If tooltip has already been processed, use it.
if ( strpos( $props['tooltip'], 'class="gf_tooltip ' ) !== false ) {
$html = $props['tooltip'];
} else {
$html = ' ' . gform_tooltip( $props['tooltip'], rgar( $props, 'tooltip_class' ), true );
}
}
return $html;
}
/**
* Determine whether a section gets a card layout.
*
* If a section has one field, and the field type is card, it gets the card layout.
*
* @since 2.5.7
*
* @param array $section Settings section
*
* @return bool
*/
public function has_card_layout( $section ) {
if ( ! rgar( $section, 'fields' ) || 1 !== count( $section['fields'] ) ) {
return false;
}
if ( 'card' !== $section['fields'][0]['type'] ) {
return false;
}
return true;
}
// # SUBMISSION PROCESSING -----------------------------------------------------------------------------------------
/**
* Processes the save settings callback.
* Validates values.
* If valid, filters and saves values.
* If invalid, displays error message.
*
* @since 2.5
*/
public function process_postback() {
global $_gf_settings_posted_values;
// If postback has already been processed, exit.
if ( $this->processed_postback ) {
return;
}
// If save dependency is not met, exit.
if ( ! $this->is_dependency_met( rgar( $this->save_button, 'dependency' ) ) ) {
return;
}
// Verify nonce.
check_admin_referer( 'gform_settings_save', 'gform_settings_save_nonce' );
// If user does not have access, exit.
if ( ! $this->current_user_has_access() ) {
esc_html_e( 'Access denied.', 'gravityforms' );
return;
}
// Set previous values.
$this->set_previous_values( $this->_saved_values );
// Get posted values.
$values = $this->get_posted_values();
// Validate settings.
$is_valid = $this->validate( $values );
// Set processed postback flag.
$this->processed_postback = true;
// If values are valid, filter and save.
if ( $is_valid ) {
// Filter values.
$values = $this->filter_values( $values );
// Save values.
$this->save_values( $values );
$this->set_values( $values );
// Reset postback values.
$_gf_settings_posted_values = array();
// Set validation message.
$this->postback_message = $this->get_save_success_message();
} else {
// Set validation message.
$this->postback_message = $this->get_save_error_message();
}
}
/**
* Set the save success message after a save redirect.
*
* @since 2.5
*/
public function set_save_message_after_redirect() {
$this->postback_message = $this->get_save_success_message();
}
/**
* Check if the current user has the capabilities to access these settings.
*
* @since 2.5
*
* @return bool
*/
public function current_user_has_access() {
return ! $this->capability || GFCommon::current_user_can_any( $this->capability );
}
/**
* Filter posted field values.
* Runs `save_callback` when defined for field.
*
* @since 2.5
*
* @param array $values Posted field values.
*
* @return array
*/
public function filter_values( $values ) {
// Get fields.
$groups = $this->get_fields();
// Loop through tabs or sections and apply filters.
foreach ( $groups as $group ) {
$values = $this->filter_group_values( $values, $group );
}
return $values;
}
/**
* Filter posted field values for section.
* Runs `save_callback` when defined for field.
*
* @since 2.5
*
* @param array $values Posted field values.
* @param array $group Array of sections or fields.
*
* @return array
*/
private function filter_group_values( $values, $group ) {
// If dependency is not met for section, skip.
if ( ! $this->is_dependency_met( rgar( $group, 'dependency' ) ) ) {
return $values;
}
$nested_key = GFCommon::get_nested_key( $group );
/**
* Loop through items, apply filters.
*
* @var array|Fields\Base $item
*/
foreach ( rgar( $group, $nested_key, array() ) as $item ) {
// If dependency is not met for field, skip.
if ( ! $this->is_dependency_met( rgar( $item, 'dependency' ) ) ) {
continue;
}
// If this is a field, filter values.
if ( is_object( $item ) ) {
// Get field value.
$field_value = $this->get_field_value( $item, $values );
// Filter value.
$values = $item->save_field( $values, $field_value );
}
// Validate nested fields.
if ( rgar( $item, 'fields' ) ) {
$values = $this->filter_group_values( $values, array( $item ) );
}
}
return $values;
}
/**
* Gets the submitted field value.
*
* Fields with complex names are parsed into an indexed array to facilitate with value lookup.
*
* @since 2.5
*
* @see Fields\Base::get_parsed_name()
*
* @param Fields\Base $item A Settings Field instance.
* @param array $values Array of settings values.
*
* @return array|\ArrayAccess|mixed|string|null
*/
private function get_field_value( $item, $values ) {
$name = $item->get_parsed_name();
if ( is_array( $name ) ) {
return rgars( $values, implode( '/', $name ) );
}
return rgar( $values, $name );
}
/**
* Save posted values.
*
* @since 2.5
*
* @param array $values Posted values.
*/
public function save_values( $values ) {
// Get save callback.
$callback = $this->get_save_callback();
// If callback is callable, call it.
if ( is_callable( $callback ) ) {
call_user_func( $callback, $values );
} else if ( is_string( $callback ) ) {
update_option( $callback, $values );
}
}
// # FIELD HELPER METHODS ------------------------------------------------------------------------------------------
/**
* Check if defined fields contain a specific field type.
*
* @since 2.5
*
* @param string $type Field type to search for.
* @param array|bool $groups Array of tabs or sections to search through. Defaults to defined fields.
*
* @return bool
*/
public function has_field_type( $type, $groups = false ) {
// Get fields.
if ( ! $groups ) {
$groups = $this->get_fields();
}
// If no fields are defined, return.
if ( empty( $groups ) ) {
return false;
}
// Loop through groups, check for field type.
foreach ( $groups as $group ) {
// Determine nested key.
$nested_key = GFCommon::get_nested_key( $group );
foreach ( $group[ $nested_key ] as $field ) {
// If field is a match, return.
if ( rgobj( $field, 'type' ) === $type ) {
return true;
}
if ( rgobj( $field, 'fields' ) && $this->has_field_type( $type, $field->fields ) ) {
return true;
}
}
}
return false;
}
// # VALIDATION METHODS --------------------------------------------------------------------------------------------
/**
* Validate settings fields.
* Fields can be invalid when marked as required and have a blank value or fails a custom validation check.
* Use the `validation_callback` field property to implement a custom validation check.
*
* @since 2.5
*
* @param array $values Posted field values.
*
* @return bool
*/
public function validate( $values ) {
// Get fields.
$groups = $this->get_fields();
// Loop through tabs or sections and validate.
foreach ( $groups as $group ) {
$this->validate_group( $values, $group );
}
// Get field errors.
$field_errors = $this->get_field_errors();
return empty( $field_errors );
}
/**
* Validate settings field group.
*
* @since 2.5
*
* @param array $values Posted field values.
* @param array $group Array of sections or fields.
*/
private function validate_group( $values, $group ) {
// If section dependency is not met, exit.
if ( ! $this->is_dependency_met( rgar( $group, 'dependency' ) ) ) {
return;
}
$nested_key = GFCommon::get_nested_key( $group );
/**
* Loop through fields and validate.
*
* @var Fields\Base $field
*/
foreach ( rgar( $group, $nested_key, array() ) as $field ) {
// If field dependency is not met, skip.
if ( ! $this->is_dependency_met( rgar( $field, 'dependency' ) ) ) {
continue;
}
// Validate nested fields.
if ( rgar( $field, 'fields' ) ) {
$this->validate_group( $values, $field );
}
// $field needs to be an object to run the subsequent steps, if not, bail.
if ( ! is_object( $field ) ) {
continue;
}
if ( method_exists( $field, 'get_values_from_post' ) ) {
// Get field value from field object.
$field_value = $field->get_values_from_post( $values );
} else {
// Get field value.
$field_value = $this->get_value( $field->name, null, $values );
}
// Validate field.
$field->handle_validation( $field_value );
}
}
/**
* Get errors for all fields.
*
* @since 2.5
*
* @return array
*/
public function get_field_errors() {
$errors = array();
// Get fields.
$groups = $this->get_fields();
// Loop through tabs or sections, find errors.
foreach ( $groups as $group ) {
$errors = array_merge( $errors, $this->get_group_errors( $group ) );
}
return $errors;
}
/**
* Get field errors for a section.
*
* @since 2.5
*
* @param array $group Array of sections or fields.
*
* @return array
*/
private function get_group_errors( $group ) {
$errors = array();
$nested_key = GFCommon::get_nested_key( $group );
/**
* Loop through fields in section, find errors.
*
* @var Fields\Base $field
*/
foreach ( rgar( $group, $nested_key, array() ) as $field ) {
// If field has an error, add it.
if ( is_object( $field ) && $field->get_error() ) {
$errors[ $field->name ] = $field->get_error();
}
// If field has inputs, check inputs for errors.
if ( rgobj( $field, 'inputs' ) ) {
/**
* @var Fields\Base $input
*/
foreach ( $field->inputs as $input ) {
if ( $input->get_error() ) {
$errors[ $input->name ] = $input->get_error();
}
}
}
// If field has nested fields, find errors.
if ( rgar( $field, 'fields' ) ) {
$errors = array_merge( $errors, $this->get_group_errors( $field ) );
}
}
return $errors;
}
// # GETTER / SETTER METHODS ---------------------------------------------------------------------------------------
/**
* Get the tab currently being displayed.
*
* @since 2.5
*
* @return bool|string
*/
public function get_active_tab() {
// If settings are not tabbed, return.
if ( ! $this->is_tabbed ) {
return false;
}
// Get tabs, field errors.
$tabs = array_values( $this->get_fields() );
$errors = $this->get_field_errors();
if ( empty( $errors ) ) {
return rgpost( 'gform_settings_tab' ) ? sanitize_text_field( $_POST['gform_settings_tab'] ) : rgars( $tabs, '0/id' );
}
// Get failed field names.
$failed_fields = array_keys( $errors );
// Search for first failed field.
foreach ( $tabs as $tab ) {
foreach ( $tab['sections'] as $section ) {
foreach ( $section['fields'] as $field ) {
if ( in_array( rgar( $field, 'name' ), $failed_fields ) ) {
return rgar( $tab, 'id' );
}
}
}
}
return rgars( $tabs, '0/id' );
}
/**
* Get the current form object.
*
* @since 2.5
*
* @return bool|array
*/
public function get_current_form() {
static $form;
if ( isset( $form ) ) {
return $form;
}
// Get current form ID.
$form_id = $this->current_form ? $this->current_form : rgget( 'id' );
// If there is no form ID, return.
if ( ! $form_id ) {
return false;
}
// Get form.
$form = GFAPI::get_form( $form_id );
if ( ! $form ) {
return false;
}
if ( is_admin() ) {
$form = gf_apply_filters( array( 'gform_admin_pre_render', $form_id ), $form );
}
return $form;
}
/**
* Get the current form ID.
*
* @since 2.5
*
* @return bool|int
*/
public function get_current_form_id() {
// Get the current form.
$form = $this->get_current_form();
return $form ? rgar( $form, 'id' ) : false;
}
/**
* Add a field to existing defined fields.
*
* @since 2.5
*
* @param string $name Name of field to insert before/after.
* @param array|Fields\Base[] $fields Field(s) to add.
* @param string $position Insert field "before" or "after" existing field.
* @param array|false $groups Array of sections/fields.
*
* @return array
*/
public function add_field( $name, $fields, $position, $groups = false ) {
// If only one Field object is provided, push to array.
if ( rgar( $fields, 'name' ) ) {
$fields = array( $fields );
}
// Initialize fields.
$fields = $this->initialize_fields( $fields );
// Determine position.
$position = $position === 'before' ? 0 : 1;
// Get fields.
if ( ! $groups ) {
$groups = $this->get_fields();
}
// Loop through groups, add field.
foreach ( $groups as &$group ) {
$group = $this->add_field_to_group( $group, $name, $fields, $position );
}
// Update fields.
$this->fields = $groups;
return $this->fields;
}
/**
* Add field to a group of fields.
*
* @since 2.5
*
* @param array|Fields\Base $group Group of sections/fields.
* @param string $name Name of field to insert before/after.
* @param Fields\Base[] $fields Field(s) to add.
* @param int $position Insert field before or after existing field.
*
* @return array|Fields\Base
*/
private function add_field_to_group( &$group, $name, $fields, $position ) {
// Get nested key.
$nested_key = GFCommon::get_nested_key( $group );
// If nested key does not exist or is empty, return.
if ( ! isset( $group[ $nested_key ] ) || empty( $group[ $nested_key ] ) ) {
return $group;
}
foreach ( $group[ $nested_key ] as $i => &$item ) {
// If item name matches, add field(s).
if ( rgar( $item, 'name' ) === $name ) {
array_splice( $group[ $nested_key ], $i + $position, 0, $fields );
return $group;
}
// If field has its own fields, search within.
if ( rgar( $item, 'fields' ) ) {
$item = $this->add_field_to_group( $item, $name, $fields, $position );
}
}
return $group;
}
/**
* Remove a field from existing defined fields.
*
* @since 2.5
*
* @param string $name Name of field to remove.
* @param array|false $groups Array of sections/fields.
*
* @return array
*/
public function remove_field( $name, $groups = false ) {
// Get fields.
if ( ! $groups ) {
$groups = $this->get_fields();
}
// Loop through groups, add field.
foreach ( $groups as &$group ) {
$group = $this->remove_field_from_group( $group, $name );
}
// Update fields.
$this->fields = $groups;
return $this->fields;
}
/**
* Remove field from a group of fields.
*
* @since 2.5
*
* @param array|Fields\Base $group Group of sections/fields.
* @param string $name Name of field to remove.
*
* @return array|Fields\Base
*/
private function remove_field_from_group( &$group, $name ) {
// Get nested key.
$nested_key = GFCommon::get_nested_key( $group );
// If nested key does not exist or is empty, return.
if ( ! isset( $group[ $nested_key ] ) || empty( $group[ $nested_key ] ) ) {
return $group;
}
foreach ( $group[ $nested_key ] as $i => &$item ) {
// If item name matches, add field(s).
if ( rgar( $item, 'name' ) === $name ) {
array_splice( $group[ $nested_key ], $i, 1 );
return $group;
}
// If field has its own fields, search within.
if ( rgar( $item, 'fields' ) ) {
$item = $this->remove_field_from_group( $item, $name );
}
}
return $group;
}
/**
* Replace an existing defined field.
*
* @since 2.5
*
* @param string $name Name of field to replace.
* @param array|Fields\Base[] $fields Field(s) to replace.
* @param array|false $groups Array of sections/fields.
*
* @return array
*/
public function replace_field( $name, $fields, $groups = false ) {
// If only one Field object is provided, push to array.
if ( rgar( $fields, 'name' ) ) {
$fields = array( $fields );
}
// Initialize fields.
$fields = $this->initialize_fields( $fields );
// Get fields.
if ( ! $groups ) {
$groups = $this->get_fields();
}
// Loop through groups, add field.
foreach ( $groups as &$group ) {
$group = $this->replace_field_in_group( $group, $name, $fields );
}
// Update fields.
$this->fields = $groups;
return $this->fields;
}
/**
* Replace field in a group of fields.
*
* @since 2.5
*
* @param array|Fields\Base $group Group of sections/fields.
* @param string $name Name of field to replace.
* @param Fields\Base[] $fields Field(s) to replace.
*
* @return array|Fields\Base
*/
private function replace_field_in_group( &$group, $name, $fields ) {
// Get nested key.
$nested_key = GFCommon::get_nested_key( $group );
// If nested key does not exist or is empty, return.
if ( ! isset( $group[ $nested_key ] ) || empty( $group[ $nested_key ] ) ) {
return $group;
}
foreach ( $group[ $nested_key ] as $i => &$item ) {
// If item name matches, replace field(s).
if ( rgar( $item, 'name' ) === $name ) {
array_splice( $group[ $nested_key ], $i, 1, $fields );
return $group;
}
// If field has its own fields, search within.
if ( rgar( $item, 'fields' ) ) {
$item = $this->replace_field_in_group( $item, $name, $fields );
}
}
return $group;
}
/**
* Get a specific settings field.
*
* @since 2.5
*
* @param string $name Name of field to retrieve.
* @param array|bool $groups Array of tabs or sections to search through. Defaults to defined fields.
*
* @return Fields\Base|bool
*/
public function get_field( $name, $groups = false ) {
// If fields were not provided, use defined fields.
if ( ! $groups ) {
$groups = $this->get_fields();
}
// Loop through groups, look for field.
foreach ( $groups as $group ) {
// Determine nested key.
$nested_key = GFCommon::get_nested_key( $group );
foreach ( rgar( $group, $nested_key ) as $field ) {
// If field is a match, return.
if ( rgar( $field, 'name' ) === $name ) {
return $field;
}
// If field has nested fields, search within.
if ( rgar( $field, 'fields' ) ) {
$found = $this->get_field( $name, array( $field ) );
if ( $found ) {
return $found;
}
}
// If field has nested inputs, search within.
if ( rgar( $field, 'inputs' ) ) {
$found = $this->get_field( $name, array( $field ) );
if ( $found ) {
return $found;
}
}
}
}
return false;
}
/**
* Returns fields of a specific field type.
*
* @since 2.5
*
* @param string $type Field type to search for.
* @param array|bool $groups Array of tabs or sections to search through. Defaults to defined fields.
*
* @return array
*/
public function get_fields_by_type( $type, $groups = false ) {
// Initialize return array.
$fields_for_type = array();
// Get fields.
if ( ! $groups ) {
$groups = $this->get_fields();
}
// If no fields are defined, return.
if ( empty( $groups ) ) {
return $fields_for_type;
}
// Loop through groups, check for field type.
foreach ( $groups as $group ) {
// Determine nested key.
$nested_key = GFCommon::get_nested_key( $group );
foreach ( rgar( $group, $nested_key, array() ) as $field ) {
// If field type matches, add to return array.
if ( is_object( $field ) && $field->type === $type ) {
$fields_for_type[] = $field;
}
// If field has its own fields, search within.
if ( rgar( $field, 'fields' ) ) {
$fields_for_type = array_merge( $fields_for_type, $this->get_fields_by_type( $type, $field['fields'] ) );
}
}
}
return $fields_for_type;
}
/**
* Get registered settings fields.
*
* @since 2.5
*
* @return array
*/
public function get_fields() {
return $this->fields;
}
/**
* Define fields to be rendered.
*
* @since 2.5
*
* @param array $fields Array of settings fields.
*/
public function set_fields( $fields = array() ) {
// If fields are tabbed, set flag.
$this->is_tabbed = false;
foreach ( $fields as $group ) {
if ( array_key_exists( 'sections', $group ) ) {
$this->is_tabbed = true;
}
}
// Loop through tabs or sections, initialize fields.
if ( $this->is_tabbed ) {
foreach ( $fields as $i => &$tab ) {
// Set tab ID.
if ( ! rgar( $tab, 'id' ) ) {
$tab['id'] = rgar( $tab, 'name' ) ? $tab['name'] : sprintf( 'tab_%02d', $i );
}
// Initialize fields.
foreach ( $tab['sections'] as $s => &$section ) {
$section['fields'] = $this->initialize_fields( $section['fields'] );
if ( empty( $section['fields'] ) ) {
unset( $fields[ $i ]['sections'][ $s ] );
}
}
}
} else {
foreach ( $fields as $s => &$section ) {
$section['fields'] = $this->initialize_fields( $section['fields'] );
if ( empty( $section['fields'] ) ) {
unset( $fields[ $s ] );
}
}
}
$this->fields = $fields;
// Set save button.
if ( ! $this->save_button ) {
$this->add_save_button();
}
}
/**
* Initialize fields as field objects.
*
* @since 2.5
*
* @param array $fields Array of settings fields.
*
* @return array
*/
private function initialize_fields( $fields = array() ) {
foreach ( $fields as $f => &$field ) {
// Handle save button separately.
if ( $field['type'] === 'save' ) {
$this->add_save_button( $field );
unset( $fields[ $f ] );
}
// If field is already initialized, skip.
if ( is_object( $field ) ) {
continue;
}
// Initialize field object.
$f = Fields::create( $field, $this );
// If field was created, save.
if ( ! is_wp_error( $f ) ) {
$field = $f;
}
// If field has fields, initialize them.
if ( rgobj( $field, 'fields' ) ) {
$field->fields = $this->initialize_fields( $field->fields );
}
}
return $fields;
}
/**
* Returns the input name prefix.
*
* @since 2.5
*
* @return string
*/
public function get_input_name_prefix() {
return $this->input_name_prefix;
}
/**
* Set the input name prefix.
*
* @since 2.5
*
* @param string $input_name_prefix Input name prefix.
*/
public function set_input_name_prefix( $input_name_prefix = '_gform_setting' ) {
$this->input_name_prefix = $input_name_prefix;
}
/**
* Returns the current field values.
* If this is a postback request, returns posted values.
* Otherwise, returns saved values passed in to constructor.
*
* @since 2.5
*
* @return array
*/
public function get_current_values() {
// Get posted values.
$values = $this->get_posted_values();
// If no values have been posted, get saved values.
if ( empty( $values ) ) {
$values = $this->_saved_values;
}
return $values;
}
/**
* Get previous field values.
*
* @since 2.5
*
* @return bool|array
*/
public function get_previous_values() {
return $this->_previous_values;
}
/**
* Returns posted field values.
*
* @since 2.5
*
* @return array
*/
public function get_posted_values() {
global $_gf_settings_posted_values;
// If posted values have already been retrieved, return.
if ( isset( $_gf_settings_posted_values ) ) {
return $_gf_settings_posted_values;
}
// Initialize posted values array.
$_gf_settings_posted_values = array();
// If no values have been posted, return.
if ( count( $_POST ) <= 0 ) {
return $_gf_settings_posted_values;
}
// Strip input name prefix from keys.
foreach ( $_POST as $key => $value ) {
if ( preg_match( '|' . $this->input_name_prefix . '_(.*)|', $key, $matches ) ) {
$_gf_settings_posted_values[ $matches[1] ] = GFCommon::maybe_decode_json( stripslashes_deep( $value ) );
if ( is_string( $_gf_settings_posted_values[ $matches[1] ] ) ) {
$_gf_settings_posted_values[ $matches[1] ] = trim( $_gf_settings_posted_values[ $matches[1] ] );
}
}
}
return $_gf_settings_posted_values;
}
/**
* Get current value for field.
* Use default value if not found.
*
* @since 2.5
*
* @param string $name Field name.
* @param string $default_value Default value.
* @param array|bool $values Current field values.
*
* @return bool|array|string
*/
public function get_value( $name, $default_value = '', $values = false ) {
// Get current values.
if ( ! $values || ! is_array( $values ) ) {
$values = $this->get_current_values();
}
// If no default value was provided, get default value for field.
if ( ! $default_value ) {
// Get field.
$field = $this->get_field( $name );
// If field was found, get default value.
if ( $field && rgobj( $field, 'default_value' ) ) {
$default_value = $field['default_value'];
}
}
// If no values are defined, return default value.
if ( false === $values ) {
return $default_value;
}
// If field name contains a bracket, get value from array.
if ( false !== strpos( $name, '[' ) ) {
// Explode field name.
$name_parts = explode( '[', $name );
// Loop through field name parts, look for value.
foreach ( $name_parts as $part ) {
// Get current part.
$part = trim( $part, ']' );
if ( '0' != $part ) {
if ( empty( $part ) ) {
return $values;
}
}
if ( false === isset( $values[ $part ] ) ) {
return $default_value;
}
$values = rgar( $values, $part );
}
$value = $values;
} else {
// If field is not found in values array, return default value.
if ( false === isset( $values[ $name ] ) ) {
return $default_value;
}
$value = $values[ $name ];
}
return $value;
}
/**
* Save current field values.
*
* @since 2.5
*
* @param array|string $values Field values to be saved.
*/
public function set_values( $values = array() ) {
// If values is a string and serialized, unserialize.
if ( is_string( $values ) && is_serialized( $values ) ) {
$values = unserialize( $values );
} else if ( is_string( $values ) && ! is_serialized( $values ) ) {
$values = get_option( $values, array() );
}
$this->_saved_values = $values;
}
/**
* Save previous field values.
*
* @since 2.5
*
* @param array $values Field values to be saved.
*/
public function set_previous_values( $values = array() ) {
$this->_previous_values = $values;
}
/**
* Get the save callback.
*
* @since 2.5
*
* @return string|callable
*/
public function get_save_callback() {
return $this->_save_callback;
}
/**
* Set the save callback.
*
* @since 2.5
* @deprecated 2.6.1
*
* @param string|callable $callback Option name or callable function values will be saved to.
*/
public function set_save_callback( $callback = '' ) {
_deprecated_function( 'set_save_callback', '2.6', 'set_save_setting_callback' );
$this->set_save_setting_callback( $callback );
}
/**
* Set the save callback.
*
* @since 2.6.1
*
* @param string|callable $callback Option name or callable function values will be saved to.
*/
protected function set_save_setting_callback( $callback = '' ) {
$this->_save_callback = $callback;
}
/**
* Set the postback message callback.
*
* @since 2.5
*
* @param callable $callback Callable function to use when displaying success message.
*
* @return bool|WP_Error
*/
public function set_postback_message_callback( $callback ) {
// If callback is not callable, return.
if ( ! is_callable( $callback ) ) {
return new WP_Error( 'not_callable', 'Provided callback is not callable.' );
}
$this->postback_message_callback = $callback;
return true;
}
// # MISC HELPER METHODS -------------------------------------------------------------------------------------------
/**
* Determines if Save button was pressed.
*
* @since 2.5
*
* @return bool
*/
public static function is_save_postback() {
return ! rgempty( 'gform-settings-save' );
}
}