class-gravityview-field-notes.php

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<?php
/**
 * Notes Field
 *
 * @package GravityView
 * @license GPL2+
 * @since 1.17
 * @author Katz Web Services, Inc.
 * @link https://gravityview.co
 * @copyright Copyright 2016, Katz Web Services, Inc.
 */

/**
 * Add Entry Notes
 * @since 1.17
 */
class GravityView_Field_Notes extends GravityView_Field {

 /**
 * @var string Current __FILE__
 * @since 1.17
 */
 static $file;

 /**
 * @var string plugin_dir_path() of the current field file
 * @since 1.17
 */
 static $path;

 /**
 * @var bool Are we doing an AJAX request?
 * @since 1.17
 */
 private $doing_ajax = false;

 /**
 * The name of the GravityView field type
 * @var string
 */
 var $name = 'notes';

 var $icon = 'dashicons-admin-comments';

 function __construct() {

 self::$path = plugin_dir_path( __FILE__ );
 self::$file = __FILE__;

 $this->doing_ajax = defined( 'DOING_AJAX' ) && DOING_AJAX;

 $this->add_hooks();

 parent::__construct();
 }

 /**
 * Add AJAX hooks, [gv_note_add] shortcode, and template loading paths
 *
 * @since 1.17
 *
 * @return void
 */
 private function add_hooks() {

 add_shortcode( 'gv_note_add', array( 'GravityView_Field_Notes', 'get_add_note_part' ) );

 add_action( 'wp', array( $this, 'maybe_delete_notes'), 1000 );
 add_action( 'wp_ajax_nopriv_gv_delete_notes', array( $this, 'maybe_delete_notes') );
 add_action( 'wp_ajax_gv_delete_notes', array( $this, 'maybe_delete_notes') );

 add_action( 'wp', array( $this, 'maybe_add_note'), 1000 );
 add_action( 'wp_ajax_nopriv_gv_note_add', array( $this, 'maybe_add_note') );
 add_action( 'wp_ajax_gv_note_add', array( $this, 'maybe_add_note') );

 // add template path to check for field
 add_filter( 'gravityview_template_paths', array( $this, 'add_template_path' ) );
 add_filter( 'gravityview/template/fields_template_paths', array( $this, 'add_template_path' ) );

 add_action( 'wp_enqueue_scripts', array( $this, 'register_scripts') );
 add_action( 'gravityview/field/notes/scripts', array( $this, 'enqueue_scripts' ) );

 add_filter( 'gravityview_entry_default_fields', array( $this, 'add_entry_default_field' ), 10, 3 );
 }


 /**
 * Add Entry Notes to the Add Field picker in Edit View
 *
 * @see GravityView_Admin_Views::get_entry_default_fields()
 *
 * @since 1.17
 *
 * @param array $entry_default_fields Fields configured to show in the picker
 * @param array $form Gravity Forms form array
 * @param string $zone Current context: `directory`, `single`, `edit`
 *
 * @return array Fields array with notes added, if in Multiple Entries or Single Entry context
 */
 public function add_entry_default_field( $entry_default_fields, $form, $zone ) {

 if( in_array( $zone, array( 'directory', 'single' ) ) ) {
 $entry_default_fields['notes'] = array(
 'label' => __( 'Entry Notes', 'gk-gravityview' ),
 'type' => 'notes',
 'desc' => __( 'Display, add, and delete notes for an entry.', 'gk-gravityview' ),
 'icon' => 'dashicons-admin-comments',
 );
 }

 return $entry_default_fields;
 }

 /**
 * Register scripts and styles used by the Notes field
 *
 * @since 1.17
 *
 * @return void
 */
 public function register_scripts() {
 $css_file = gravityview_css_url( 'entry-notes.css', GravityView_Field_Notes::$path . 'assets/css/' );
 wp_register_style( 'gravityview-notes', $css_file, array(), GV_PLUGIN_VERSION );
 wp_register_script( 'gravityview-notes', plugins_url( '/assets/js/entry-notes.js', GravityView_Field_Notes::$file ), array( 'jquery' ), GV_PLUGIN_VERSION, true );
 }

 /**
 * Enqueue, localize field scripts and styles
 *
 * @since 1.17
 *
 * @return void
 */
 public function enqueue_scripts() {
 global $wp_actions;

 if( ! wp_script_is( 'gravityview-notes', 'enqueued' ) ) {
 wp_enqueue_style( 'gravityview-notes' );
 wp_enqueue_script( 'gravityview-notes' );
 }

 if( ! wp_script_is( 'gravityview-notes', 'done' ) ) {

 $strings = self::strings();

 wp_localize_script( 'gravityview-notes', 'GVNotes', array(
 'ajaxurl' => admin_url( 'admin-ajax.php' ),
 'text' => array(
 'processing' => $strings['processing'],
 'delete_confirm' => $strings['delete-confirm'],
 'note_added' => $strings['added-note'],
 'error_invalid' => $strings['error-invalid'],
 'error_empty_note' => $strings['error-empty-note'],
 ),
 ) );
 }
 }

 /**
 * Verify permissions, check if $_POST is set and as expected. If so, use process_add_note
 *
 * @since 1.17
 *
 * @see process_add_note
 *
 * @return void
 */
 function maybe_add_note() {
 if ( ! isset( $_POST['action'] ) || 'gv_note_add' !== $_POST['action'] ) {
 return;
 }

 if ( ! GVCommon::has_cap( 'gravityview_add_entry_notes' ) ) {
 gravityview()->log->error( "The user isn't allowed to add entry notes." );

 return;
 }

 $post = wp_unslash( $_POST );

 if ( $this->doing_ajax ) {
 parse_str( $post['data'], $data );
 } else {
 $data = $post;
 }

 $this->process_add_note( (array) $data );
 }

 /**
 * Handle adding a note.
 *
 * Verify the request. If valid, add the note. If AJAX request, send response JSON.
 *
 * @since 1.17
 *
 * @var array $data {
 * @type string $action "gv_note_add"
 * @type string $entry-slug Entry slug or ID to add note to
 * @type string $gv_note_add Nonce with action "gv_note_add_{entry slug}" and name "gv_note_add"
 * @type string $_wp_http_referer Relative URL to submitting page ('/view/example/entry/123/')
 * @type string $gv-note-content Note content
 * @type string $add_note Submit button value ('Add Note')
 * }
 *
 * @return void
 */
 private function process_add_note( $data ) {

 $error = false;
 $success = false;

 if( empty( $data['entry-slug'] ) ) {

 $error = self::strings('error-invalid');
 gravityview()->log->error( 'The note is missing an Entry ID.' );

 } else {

 $valid = wp_verify_nonce( $data['gv_note_add'], 'gv_note_add_' . $data['entry-slug'] );

 $has_cap = GVCommon::has_cap( 'gravityview_add_entry_notes' );

 if( ! $has_cap ) {
 $error = self::strings( 'error-cap-add' );
 gravityview()->log->error( 'Adding a note failed: the user does not have the "gravityview_add_entry_notes" capability.' );
 } elseif ( $valid ) {

 $entry = gravityview_get_entry( $data['entry-slug'], true, false );

 $added = $this->add_note( $entry, $data );

 // Error adding note
 if ( is_wp_error( $added ) ) {

 $error = $added->get_error_message();

 } else {

 // Confirm the note was added, because GF doesn't return note ID on success
 $note = GravityView_Entry_Notes::get_note( $added );

 // Possibly email peeps about this great new note
 $this->maybe_send_entry_notes( $note, $entry, $data );

 if ( $note ) {
 $success = self::display_note( $note, ! empty( $data['show-delete'] ) );
 gravityview()->log->debug( 'The note was successfully created', array( 'data' => compact( 'note', 'data' ) ) );
 } else {
 $error = self::strings('error-add-note');
 gravityview()->log->error( 'The note was not successfully created', array( 'data' => compact( 'note', 'data' ) ) );
 }
 }
 } else {
 $error = self::strings('error-invalid');
 gravityview()->log->error( 'Nonce validation failed; the note was not created' );
 }
 }


 if( $this->doing_ajax ) {
 if( $success ) {
 wp_send_json_success( array( 'html' => $success ) );
 } else {
 $error = $error ? $error : self::strings( 'error-invalid' );
 wp_send_json_error( array( 'error' => esc_html( $error ) ) );
 }
 }
 }

 /**
 * Possibly delete notes, if request is proper.
 *
 * Verify permissions. Check expected $_POST. Parse args, then send to process_delete_notes
 *
 * @since 1.17
 *
 * @see process_delete_notes
 *
 * @return void
 */
 function maybe_delete_notes() {

 if ( ! GVCommon::has_cap( 'gravityview_delete_entry_notes' ) ) {
 return;
 }

 if ( isset( $_POST['action'] ) && 'gv_delete_notes' === $_POST['action'] ) {

 $post = wp_unslash( $_POST );
 if ( $this->doing_ajax ) {
 parse_str( $post['data'], $data );
 } else {
 $data = $post;
 }

 $required_args = array(
 'gv_delete_notes' => '',
 'entry-slug' => '',
 );

 $data = wp_parse_args( $data, $required_args );

 $this->process_delete_notes( $data );
 }
 }

 /**
 * Handle deleting notes
 *
 * @var array $data {
 * @type string $action "gv_delete_notes"
 * @type string $entry-slug Entry slug or ID to add note to
 * @type string $gv_delete_notes Nonce with action "gv_delete_notes_{entry slug}" and name "gv_delete_notes"
 * @type string $_wp_http_referer Relative URL to submitting page ('/view/example/entry/123/')
 * @type int[] $note Array of Note IDs to be deleted
 * }
 *
 * @return void
 */
 function process_delete_notes( $data ) {

 $valid = wp_verify_nonce( $data['gv_delete_notes'], 'gv_delete_notes_' . $data['entry-slug'] );
 $has_cap = GVCommon::has_cap( 'gravityview_delete_entry_notes' );
 $success = false;

 if ( $valid && $has_cap ) {
 GravityView_Entry_Notes::delete_notes( $data['note'] );
 $success = true;
 }

 if( $this->doing_ajax ) {

 if( $success ) {
 wp_send_json_success();
 } else {
 if ( ! $valid ) {
 $error_message = self::strings( 'error-invalid' );
 } else {
 $error_message = self::strings( 'error-permission-delete' );
 }

 wp_send_json_error( array( 'error' => $error_message ) );
 }
 }
 }

 /**
 * Include this extension templates path
 *
 * @since 1.17
 *
 * @param array $file_paths List of template paths ordered
 *
 * @return array File paths with `./` and `./partials/` paths added
 */
 public function add_template_path( $file_paths ) {

 $file_paths[ 172 ] = self::$path;
 $file_paths[ 173 ] = self::$path . 'partials/';

 return $file_paths;
 }

 public function field_options( $field_options, $template_id, $field_id, $context, $input_type, $form_id ) {

 unset( $field_options['show_as_link'] );

 $notes_options = array(
 'notes' => array(
 'type' => 'checkboxes',
 'label' => __('Note Settings', 'gk-gravityview'),
 'desc' => sprintf( _x('Only users with specific capabilities will be able to view, add and delete notes. %sRead more%s.', '%s is opening and closing HTML link', 'gk-gravityview' ), '<a href="https://docs.gravityview.co/article/311-gravityview-capabilities">', '</a>' ),
 'options' => array(
 'view' => array(
 'label' => __( 'Display notes?', 'gk-gravityview' ),
 ),
 'view_loggedout' => array(
 'label' => __( 'Display notes to users who are not logged-in?', 'gk-gravityview' ),
 'requires' => 'view',
 ),
 'add' => array(
 'label' => __( 'Enable adding notes?', 'gk-gravityview' ),
 ),
 'email' => array(
 'label' => __( 'Allow emailing notes?', 'gk-gravityview' ),
 'requires' => 'add',
 ),
 'delete' => array(
 'label' => __( 'Allow deleting notes?', 'gk-gravityview' ),
 ),
 ),
 'value' => array( 'view' => 1, 'add' => 1, 'email' => 1 ),
 ),
 );

 return $notes_options + $field_options;
 }

 /**
 * Get strings used by the Entry Notes field
 *
 * Use `gravityview/field/notes/strings` filter to modify the strings
 *
 * @since 1.17
 *
 * @param string $key If set, return the string with the key of $key
 *
 * @return array|string Array of strings with keys and values. If $key is set, returns string. If missing $strings[ $key ], empty string.
 */
 static public function strings( $key = '' ) {

 $strings = array(
 'add-note' => __( 'Add Note', 'gk-gravityview' ),
 'added-note' => __( 'Note added.', 'gk-gravityview' ),
 'content-label' => __( 'Note Content', 'gk-gravityview' ),
 'delete' => __( 'Delete', 'gk-gravityview' ),
 'delete-confirm' => __( 'Are you sure you want to delete the selected notes?', 'gk-gravityview' ),
 'caption' => __( 'Notes for this entry', 'gk-gravityview' ),
 'toggle-notes' => __( 'Toggle all notes', 'gk-gravityview' ),
 'no-notes' => __( 'There are no notes.', 'gk-gravityview' ),
 'processing' => __( 'Processing&hellip;', 'gk-gravityview' ),
 'other-email' => __( 'Other email address', 'gk-gravityview' ),
 'email-label' => __( 'Email address', 'gk-gravityview' ),
 'email-placeholder' => _x('[email protected]', 'Example email address used as a placeholder', 'gk-gravityview'),
 'subject-label' => __( 'Subject', 'gk-gravityview' ),
 'subject' => __( 'Email subject', 'gk-gravityview' ),
 'default-email-subject' => __( 'New entry note', 'gk-gravityview' ),
 'email-footer' => __( 'This note was sent from {url}', 'gk-gravityview' ),
 'also-email' => __( 'Also email this note to', 'gk-gravityview' ),
 'error-add-note' => __( 'There was an error adding the note.', 'gk-gravityview' ),
 'error-invalid' => __( 'The request was invalid. Refresh the page and try again.', 'gk-gravityview' ),
 'error-empty-note' => _x( 'Note cannot be blank.', 'Message to display when submitting a note without content.', 'gk-gravityview' ),
 'error-cap-delete' => __( 'You don\'t have the ability to delete notes.', 'gk-gravityview' ),
 'error-cap-add' => __( 'You don\'t have the ability to add notes.', 'gk-gravityview' ),
 );

 /**
 * @filter `gravityview/field/notes/strings` Modify the text used in the Entry Notes field. Sanitized by `esc_html` after return.
 * @since 1.17
 * @param array $strings Text in key => value pairs
 */
 $strings = gv_map_deep( apply_filters( 'gravityview/field/notes/strings', $strings ), 'esc_html' );

 if( $key ) {
 return isset( $strings[ $key ] ) ? $strings[ $key ] : '';
 }

 return $strings;
 }

 /**
 * Generate HTML output for a single note
 *
 * @since 1.17
 *
 * @param object $note Note object with id, user_id, date_created, value, note_type, user_name, user_email vars
 * @param bool $show_delete Whether to show the bulk delete inputs
 *
 * @since 2.0
 * @param \GV\Template_Context $context The context.
 *
 * @return string HTML
 */
 static public function display_note( $note, $show_delete = false, $context = null ) {

 if( ! is_object( $note ) ) {
 return '';
 }

 $note_content = array(
 'avatar' => get_avatar( $note->user_id, 48 ),
 'user_name' => $note->user_name,
 'user_email' => $note->user_email,
 'added_on' => esc_html__( 'added on {date_created_formatted}', 'gk-gravityview' ),
 'value' => wpautop( esc_html( $note->value ) ),
 'date_created' => $note->date_created,
 'date_created_formatted' => GFCommon::format_date( $note->date_created, false ),
 'user_id' => intval( $note->user_id ),
 'note_type' => $note->note_type,
 'note_id' => intval( $note->id ),
 );

 /**
 * @filter `gravityview/field/notes/content` Modify the note content before rendering in the template
 * @since 1.17
 * @param array $note_content Array of note content that will be replaced in template files
 * @param object $note Note object with id, user_id, date_created, value, note_type, user_name, user_email vars
 * @param boolean $show_delete True: Notes are editable. False: no editing notes.
 * @since 2.0
 * @param \GV\Template_Context $context The context.
 */
 $note_content = apply_filters( 'gravityview/field/notes/content', $note_content, $note, $show_delete, $context );

 $note_row_template = ( $show_delete && GVCommon::has_cap( 'gravityview_delete_entry_notes' ) ) ? 'row-editable' : 'row';

 if ( $context instanceof \GV\Template_Context ) {

 ob_start();
 $context->template->get_template_part( 'note', 'detail', true );
 $note_detail_html = ob_get_clean();

 ob_start();
 $context->template->get_template_part( 'note', $note_row_template, true );
 $note_row = ob_get_clean();
 } else {
 /** @deprecated path */
 ob_start();
 GravityView_View::getInstance()->get_template_part( 'note', 'detail' );
 $note_detail_html = ob_get_clean();

 ob_start();
 GravityView_View::getInstance()->get_template_part( 'note', $note_row_template );
 $note_row = ob_get_clean();
 }

 foreach ( $note_content as $tag => $value ) {
 $note_detail_html = str_replace( '{' . $tag . '}', $value, $note_detail_html );
 }

 $replacements = array(
 '{note_id}' => $note_content['note_id'],
 '{row_class}' => 'gv-note',
 '{note_detail}' => $note_detail_html
 );

 // Strip extra whitespace in template
 $output = gravityview_strip_whitespace( $note_row );

 foreach ( $replacements as $tag => $replacement ) {
 $output = str_replace( $tag, $replacement, $output );
 }

 return $output;
 }

 /**
 * Add a note.
 *
 * @since 1.17
 *
 * @see GravityView_Entry_Notes::add_note This method is mostly a wrapper
 *
 * @param array $entry
 * @param array $data Note details array
 *
 * @return int|WP_Error
 */
 private function add_note( $entry, $data ) {
 global $current_user, $wpdb;

 $user_data = get_userdata( $current_user->ID );

 $note_content = trim( $data['gv-note-content'] );

 if( empty( $note_content ) ) {
 return new WP_Error( 'gv-add-note-empty', __( 'The note is empty.', 'gk-gravityview' ) );
 }

 $return = GravityView_Entry_Notes::add_note( $entry['id'], $user_data->ID, $user_data->display_name, $note_content, 'gravityview/field/notes' );

 return $return;
 }

 /**
 * Get the Add Note form HTML
 *
 * @since 1.17
 *
 * @since 2.0
 * @param array $atts Shortcode attributes for entry ID
 * @param \GV\Template_Context $context The context, when called outside of a shortcode
 *
 * @return string HTML of the Add Note form, or empty string if the user doesn't have the `gravityview_add_entry_notes` cap
 */
 public static function get_add_note_part( $atts, $context = null ) {

 $atts = shortcode_atts( array( 'entry' => null ), $atts );

 if( ! GVCommon::has_cap( 'gravityview_add_entry_notes' ) ) {
 gravityview()->log->error( 'User does not have permission to add entry notes ("gravityview_add_entry_notes").' );
 return '';
 }

 if ( $context instanceof \GV\Template_Context ) {

 ob_start();
 $context->template->get_template_part( 'note', 'add-note', true );
 $add_note_html = ob_get_clean();

 $visibility_settings = $context->field->notes;
 $gv_entry = $context->entry;
 } else {
 $gravityview_view = GravityView_View::getInstance();

 ob_start();
 $gravityview_view->get_template_part( 'note', 'add-note' );
 $add_note_html = ob_get_clean();

 $visibility_settings = $gravityview_view->getCurrentFieldSetting( 'notes' );

 if ( $atts['entry'] ) {
 $entry = GFAPI::get_entry( $atts['entry'] );
 }

 if ( ! isset( $entry ) || ! $entry ) {
 $entry = $gravityview_view->getCurrentEntry();
 }

 $gv_entry = \GV\GF_Entry::from_entry( $entry );
 }


 // Strip extra whitespace in template
 $add_note_html = gravityview_strip_whitespace( $add_note_html );
 $entry_slug = $gv_entry->get_slug();
 $nonce_field = wp_nonce_field( 'gv_note_add_' . $entry_slug, 'gv_note_add', false, false );

 // Only generate the dropdown if the field settings allow it
 $email_fields = '';
 if( ! empty( $visibility_settings['email'] ) ) {
 $email_fields = self::get_note_email_fields( $entry_slug );
 }

 $add_note_html = str_replace( '{entry_slug}', $entry_slug, $add_note_html );
 $add_note_html = str_replace( '{nonce_field}', $nonce_field, $add_note_html );
 $add_note_html = str_replace( '{show_delete}', (string) intval( empty( $visibility_settings['delete'] ) ? 0 : $visibility_settings['delete'] ), $add_note_html );
 $add_note_html = str_replace( '{email_fields}', $email_fields, $add_note_html );
 $add_note_html = str_replace( '{url}', esc_url_raw( add_query_arg( array() ) ), $add_note_html );

 return $add_note_html;
 }

 /**
 * Get array of emails addresses from the stored entry
 *
 * @since 1.17
 *
 * @return array Array of email addresses connected to the entry
 */
 private static function get_note_emails_array() {

 $gravityview_view = GravityView_View::getInstance();

 //getting email values
 $email_fields = GFCommon::get_email_fields( $gravityview_view->getForm() );

 $entry = $gravityview_view->getCurrentEntry();

 $note_emails = array();

 foreach ( $email_fields as $email_field ) {
 if ( ! empty( $entry["{$email_field->id}"] ) && is_email( $entry["{$email_field->id}"] ) ) {
 $note_emails[] = $entry["{$email_field->id}"];
 }
 }

 /**
 * @filter `gravityview/field/notes/emails` Modify the dropdown values displayed in the "Also email note to" dropdown
 * @since 1.17
 * @param array $note_emails Array of email addresses connected to the entry
 * @param array $entry Current entry
 */
 $note_emails = apply_filters( 'gravityview/field/notes/emails', $note_emails, $entry );

 return (array) $note_emails;
 }

 /**
 * Generate a HTML dropdown of email values based on email fields from the current form
 *
 * @uses get_note_emails_array
 *
 * @since 1.17
 *
 * @param int|string $entry_slug Current entry unique ID
 *
 * @return string HTML output
 */
 private static function get_note_email_fields( $entry_slug = '' ) {

 if( ! GVCommon::has_cap( 'gravityview_email_entry_notes' ) ) {
 gravityview()->log->error( 'User does not have permission to email entry notes ("gravityview_email_entry_notes").' );
 return '';
 }

 $entry_slug_esc = esc_attr( $entry_slug );

 $note_emails = self::get_note_emails_array();

 $strings = self::strings();

 /**
 * @filter `gravityview/field/notes/custom-email` Whether to include a Custom Email option for users to define a custom email to mail notes to
 * @since 1.17
 * @param bool $include_custom Default: true
 */
 $include_custom = apply_filters( 'gravityview/field/notes/custom-email', true );

 ob_start();

 if ( ! empty( $note_emails ) || $include_custom ) { ?>
 <div class="gv-note-email-container">
 <label for="gv-note-email-to-<?php echo $entry_slug_esc; ?>" class="screen-reader-text"><?php echo $strings['also-email']; ?></label>
 <select class="gv-note-email-to" name="gv-note-to" id="gv-note-email-to-<?php echo $entry_slug_esc; ?>">
 <option value=""><?php echo $strings['also-email']; ?></option>
 <?php foreach ( $note_emails as $email ) {
 ?>
 <option value="<?php echo esc_attr( $email ); ?>"><?php echo esc_html( $email ); ?></option>
 <?php }
 if( $include_custom ) { ?>
 <option value="custom"><?php echo self::strings('other-email'); ?></option>
 <?php } ?>
 </select>
 <fieldset class="gv-note-to-container">
 <?php if( $include_custom ) { ?>
 <div class='gv-note-to-custom-container'>
 <label for="gv-note-email-to-custom-<?php echo $entry_slug_esc; ?>"><?php echo $strings['email-label']; ?></label>
 <input type="text" name="gv-note-to-custom" placeholder="<?php echo $strings['email-placeholder']; ?>" id="gv-note-to-custom-<?php echo $entry_slug_esc; ?>" value="" />
 </div>
 <?php } ?>
 <div class='gv-note-subject-container'>
 <label for="gv-note-subject-<?php echo $entry_slug_esc; ?>"><?php echo $strings['subject-label']; ?></label>
 <input type="text" name="gv-note-subject" placeholder="<?php echo $strings['subject']; ?>" id="gv-note-subject-<?php echo $entry_slug_esc; ?>" value="" />
 </div>
 </fieldset>
 </div>
 <?php }

 // TODO: Add a filter
 return ob_get_clean();
 }

 /**
 * If note has an email to send, and the user has the right caps, send it
 *
 * @since 1.17
 *
 * @param false|object $note If note was created, object. Otherwise, false.
 * @param array $entry Entry data.
 * @param array $data $_POST data.
 *
 * @return void Tap in to Gravity Forms' `gform_after_email` action if you want a return result from sending the email.
 */
 private function maybe_send_entry_notes( $note = false, $entry = array(), $data = array() ) {

 if( ! $note || ! GVCommon::has_cap('gravityview_email_entry_notes') ) {
 gravityview()->log->debug( 'User doesn\'t have "gravityview_email_entry_notes" cap, or $note is empty', array( 'data' => $note ) );
 return;
 }

 gravityview()->log->debug( '$data', array( 'data' => $data ) );

 //emailing notes if configured
 if ( ! empty( $data['gv-note-to'] ) ) {

 $default_data = array(
 'gv-note-to' => '',
 'gv-note-to-custom' => '',
 'gv-note-subject' => '',
 'gv-note-content' => '',
 'current-url' => '',
 );

 $current_user = wp_get_current_user();
 $email_data = wp_parse_args( $data, $default_data );

 $from = $current_user->user_email;
 $to = $email_data['gv-note-to'];

 /**
 * Documented in get_note_email_fields
 * @see get_note_email_fields
 */
 $include_custom = apply_filters( 'gravityview/field/notes/custom-email', true );

 if( 'custom' === $to && $include_custom ) {
 $to = $email_data['gv-note-to-custom'];
 gravityview()->log->debug( 'Sending note to a custom email address: {to}', array( 'to' => $to ) );
 }

 if ( ! GFCommon::is_valid_email_list( $to ) ) {
 gravityview()->log->error( '$to not a valid email or email list (CSV of emails): {to}', array( 'to' => print_r( $to, true ), 'data' => $email_data ) );
 return;
 }

 $bcc = false;
 $reply_to = $from;
 $subject = trim( $email_data['gv-note-subject'] );

 // We use empty() here because GF uses empty to check against, too. `0` isn't a valid subject to GF
 $subject = empty( $subject ) ? self::strings( 'default-email-subject' ) : $subject;
 $message = $email_data['gv-note-content'];
 $email_footer = self::strings( 'email-footer' );
 $from_name = $current_user->display_name;
 $message_format = 'html';

 /**
 * @filter `gravityview/field/notes/email_content` Modify the values passed when sending a note email
 * @see GVCommon::send_email
 * @since 1.17
 * @param array $email_settings Values being passed to the GVCommon::send_email() method: 'from', 'to', 'bcc', 'reply_to', 'subject', 'message', 'from_name', 'message_format', 'entry', 'email_footer'
 */
 $email_content = apply_filters( 'gravityview/field/notes/email_content', compact( 'from', 'to', 'bcc', 'reply_to', 'subject', 'message', 'from_name', 'message_format', 'entry', 'email_footer' ) );

 extract( $email_content );

 $is_html = ( 'html' === $message_format );

 // Add the message footer
 $message .= $this->get_email_footer( $email_footer, $is_html, $email_data );

 /**
 * @filter `gravityview/field/notes/wpautop_email` Should the message content have paragraphs added automatically, if using HTML message format
 * @since 1.18
 * @param bool $wpautop_email True: Apply wpautop() to the email message if using; False: Leave as entered (Default: true)
 */
 $wpautop_email = apply_filters( 'gravityview/field/notes/wpautop_email', true );

 if ( $is_html && $wpautop_email ) {
 $message = wpautop( $message );
 }

 GVCommon::send_email( $from, $to, $bcc, $reply_to, $subject, $message, $from_name, $message_format, '', $entry, false );

 $form = isset( $entry['form_id'] ) ? GFAPI::get_form( $entry['form_id'] ) : array();

 /**
 * @see https://www.gravityhelp.com/documentation/article/10146-2/ It's here for compatibility with Gravity Forms
 */
 do_action( 'gform_post_send_entry_note', __METHOD__, $to, $from, $subject, $message, $form, $entry );
 }
 }

 /**
 * Get the footer for Entry Note emails
 *
 * `{url}` is replaced by the URL of the page where the note form was embedded
 *
 * @since 1.18
 * @see GravityView_Field_Notes::strings The default value of $message_footer is set here, with the key 'email-footer'
 *
 * @param string $email_footer The message footer value
 * @param bool $is_html True: Email is being sent as HTML; False: sent as text
 *
 * @return string If email footer is not empty, return the message with placeholders replaced with dynamic values
 */
 private function get_email_footer( $email_footer = '', $is_html = true, $email_data = array() ) {

 $output = '';

 if( ! empty( $email_footer ) ) {
 $url = \GV\Utils::get( $email_data, 'current-url' );
 $url = html_entity_decode( $url );
 $url = site_url( $url );

 $content = $is_html ? "<a href='{$url}'>{$url}</a>" : $url;

 $email_footer = str_replace( '{url}', $content, $email_footer );

 $output .= "\n\n$email_footer";
 }

 return $output;
 }
}

new GravityView_Field_Notes;