368 lines
13 KiB
PHP
368 lines
13 KiB
PHP
<?php
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/*
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Plugin Name: Contact Form 7 Modules: Hidden Fields
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Plugin URI: https://katz.co/contact-form-7-hidden-fields/
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Description: Add hidden fields to the popular Contact Form 7 plugin.
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Author: Katz Web Services, Inc.
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Author URI: http://www.katz.co
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Version: 2.0.2
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Text Domain: cf7_modules
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Domain Path: languages
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License: GPLv2 or later
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License URI: http://www.gnu.org/licenses/gpl-2.0.html
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*/
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add_action('plugins_loaded', 'contact_form_7_hidden_fields', 11);
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function contact_form_7_hidden_fields() {
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global $pagenow;
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if ( class_exists( 'WPCF7_Shortcode' ) || class_exists('WPCF7_FormTag') ) {
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if ( function_exists( 'wpcf7_add_form_tag' ) ) {
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wpcf7_add_form_tag( array( 'hidden', 'hidden*' ), 'wpcf7_hidden_shortcode_handler', true );
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} else {
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wpcf7_add_shortcode( array( 'hidden', 'hidden*' ), 'wpcf7_hidden_shortcode_handler', true );
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}
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} else {
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if ( $pagenow != 'plugins.php' ) {
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return;
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}
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add_action( 'admin_notices', 'contact_form_7_hidden_fields_error' );
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add_action( 'admin_enqueue_scripts', 'contact_form_7_hidden_fields_scripts' );
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}
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}
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function contact_form_7_hidden_fields_error() {
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$out = '<div class="error" id="messages"><p>';
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if ( @ file_exists( WP_PLUGIN_DIR . '/contact-form-7/wp-contact-form-7.php' ) ) {
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$out .= esc_html__( 'The Contact Form 7 is installed, but you must activate Contact Form 7 below for the Hidden Fields Module to work.', 'cf7_modules' );
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} else {
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$out .= esc_html__( 'The Contact Form 7 plugin must be installed for the Hidden Fields Module to work.', 'cf7_modules' );
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$install_url = esc_url_raw( admin_url( 'plugin-install.php?tab=plugin-information&plugin=contact-form-7&from=plugins&TB_iframe=true&width=600&height=550' ) );
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$out .= sprintf( ' <a href="%s" class="thickbox" title="Contact Form 7">%s</a>', $install_url, esc_html__( 'Install Now.', 'cf7_modules' ) );
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}
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$out .= '</p></div>';
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echo $out;
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}
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function contact_form_7_hidden_fields_scripts() {
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wp_enqueue_script('thickbox');
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}
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/**
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** A base module for [hidden] and [hidden*]
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**/
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/* Shortcode handler */
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add_filter('wpcf7_form_elements', 'wpcf7_form_elements_strip_paragraphs_and_brs');
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/**
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* Strip paragraph tags being wrapped around the field
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* @param $form
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*
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* @return mixed
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*/
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function wpcf7_form_elements_strip_paragraphs_and_brs($form) {
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return preg_replace_callback( '/<p>(<input\stype="hidden"(?:.*?))<\/p>/ism', 'wpcf7_form_elements_strip_paragraphs_and_brs_callback', $form );
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}
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function wpcf7_form_elements_strip_paragraphs_and_brs_callback($matches = array()) {
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return "\n" . '<!-- CF7 Modules -->' . "\n" . '<div style=\'display:none;\'>' . str_replace( '<br>', '', str_replace( '<br />', '', stripslashes_deep( $matches[1] ) ) ) . '</div>' . "\n" . '<!-- End CF7 Modules -->' . "\n";
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}
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/**
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** A base module for [hidden], [hidden*]
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**/
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/* Shortcode handler */
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function wpcf7_hidden_shortcode_handler( $tag ) {
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if ( class_exists( 'WPCF7_FormTag' ) ) {
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$tag = new WPCF7_FormTag( $tag );
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} else {
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$tag = new WPCF7_Shortcode( $tag );
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}
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if ( empty( $tag->name ) ) {
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return '';
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}
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$validation_error = wpcf7_get_validation_error( $tag->name );
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$class = wpcf7_form_controls_class( $tag->type, 'wpcf7-hidden' );
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if ( $validation_error ) {
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$class .= ' wpcf7-not-valid';
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}
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$class .= ' wpcf7-hidden';
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if ( 'hidden*' === $tag->type ) {
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$class .= ' wpcf7-validates-as-required';
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}
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$value = (string) reset( $tag->values );
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$placeholder = '';
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if ( $tag->has_option( 'placeholder' ) || $tag->has_option( 'watermark' ) ) {
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$placeholder = $value;
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$value = '';
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}
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$default_value = $tag->get_default_option( $value );
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$value = contact_form_7_hidden_fields_fill_post_data( $value, $tag );
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// Post data hasn't filled yet. No arrays.
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if ( $default_value === $value ) {
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$value = contact_form_7_hidden_fields_fill_user_data( $value );
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}
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// Arrays get imploded.
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$value = is_array( $value ) ? implode( apply_filters( 'wpcf7_hidden_field_implode_glue', ', ' ), $value ) : $value;
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// Make sure we're using a string. Objects get JSON-encoded.
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if ( ! is_string( $value ) ) {
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$value = json_encode( $value );
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}
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$value = apply_filters( 'wpcf7_hidden_field_value', apply_filters( 'wpcf7_hidden_field_value_' . $tag->get_id_option(), $value ) );
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$value = wpcf7_get_hangover( $tag->name, $value );
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$atts = array(
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'type' => 'hidden',
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'class' => $tag->get_class_option( $class ),
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'id' => $tag->get_id_option(),
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'name' => $tag->name,
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'tabindex' => $tag->get_option( 'tabindex', 'int', true ),
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'placeholder' => $placeholder,
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'value' => $value,
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);
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$atts = wpcf7_format_atts( $atts );
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$html = sprintf( '<input %1$s />%2$s', $atts, $validation_error );
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return $html;
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}
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/**
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* Fill data based on user information.
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*
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* @param string $value Existing value, if any
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*
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* @return mixed
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*/
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function contact_form_7_hidden_fields_fill_user_data( $value ) {
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$return = $value;
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// Process user stuff
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if ( preg_match( '/user/ism', strtolower( trim( $value ) ) ) && is_user_logged_in() ) {
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$current_user = wp_get_current_user();
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switch ( $value ) {
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case 'user_name':
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$return = $current_user->user_login;
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break;
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case 'user_id':
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$return = $current_user->ID;
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break;
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case 'caps':
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$return = $current_user->caps;
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break;
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case 'allcaps':
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$return = $current_user->allcaps;
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break;
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case 'user_roles':
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$return = $current_user->roles;
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break;
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default:
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// Gets the values for `user_email`, others that have `user_` prefix.
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if ( $current_user->has_prop( $value ) ) {
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$return = $current_user->get( $value );
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} else {
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// Define some other item in the WP_User object using the `user_[what you want to get]` format
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// This works for the `user_display_name` setting
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$user_key = preg_replace( '/user[_-](.+)/ism', '$1', $value );
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if ( $current_user->has_prop( $user_key ) ) {
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$return = $current_user->get( $user_key );
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}
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}
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break;
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}
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}
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return $return;
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}
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/**
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* Fill data based on user information.
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*
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* @param string $value Existing value, if any
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* @param WPCF7_Shortcode $tag Tag
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*
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* @return mixed
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*/
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function contact_form_7_hidden_fields_fill_post_data( $value = '', $tag ) {
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global $post;
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$return = $value;
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if ( is_object( $post ) ) {
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switch ( strtolower( trim( $value ) ) ) {
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case 'post_title':
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case 'post-title':
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$return = $post->post_title;
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break;
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case 'page_url':
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case 'post_url':
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$return = get_permalink( $post->ID );
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if ( empty( $return ) && isset( $post->guid ) ) {
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$return = $post->guid;
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}
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$return = esc_url( $return );
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break;
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case 'post_category':
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$categories = get_the_category( $post->ID );
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$catnames = array();
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// Get the category names
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foreach ( $categories as $cat ) {
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$catnames[] = $cat->cat_name;
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}
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$return = implode( ', ', $catnames );
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break;
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case 'post_author_id':
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$return = $post->post_author;
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break;
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case 'post_author':
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$user = get_userdata( $post->post_author );
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$return = $user->display_name;
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break;
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default:
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// You want post_modified? just use [hidden hidden-123 "post_modified"]
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if ( isset( $post->{ $value } ) ) {
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$return = $post->{ $value };
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}
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break;
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}
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if ( preg_match( '/^custom_field\-(.*?)$/ism', $value ) ) {
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$custom_field = preg_replace( '/custom_field\-(.*?)/ism', '$1', $value );
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$return = get_post_meta( $post->ID, $custom_field, false ) ? get_post_meta( $post->ID, $custom_field, false ) : '';
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}
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}
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return $return;
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}
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/* Tag generator */
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if ( is_admin() ) {
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add_action( 'admin_init', 'wpcf7_add_tag_generator_hidden', 30 );
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}
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function wpcf7_add_tag_generator_hidden() {
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if ( class_exists( 'WPCF7_TagGenerator' ) ) {
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$tag_generator = WPCF7_TagGenerator::get_instance();
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$tag_generator->add( 'hidden', _x( 'hidden', 'the name of the field button in CF7', 'cf7_modules' ), 'wpcf7_tg_pane_hidden' );
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}
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}
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function wpcf7_tg_pane_hidden( $contact_form, $args = '' ) {
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$args = wp_parse_args( $args, array() );
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$description = __( "Generate a form tag for a hidden field. For more details, see %s.", 'contact-form-7' );
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$desc_link = wpcf7_link( 'https://wordpress.org/plugins/contact-form-7-modules/', __( 'the plugin page on WordPress.org', 'contact-form-7' ), array( 'target' => '_blank' ) );
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?>
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<div class="control-box">
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<fieldset>
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<legend><?php printf( esc_html( $description ), $desc_link ); ?></legend>
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<table class="form-table">
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<tbody>
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<tr>
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<th scope="row"><label
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for="<?php echo esc_attr( $args['content'] . '-name' ); ?>"><?php echo esc_html( __( 'Name', 'contact-form-7' ) ); ?></label>
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</th>
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<td><input type="text" name="name" class="tg-name oneline"
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id="<?php echo esc_attr( $args['content'] . '-name' ); ?>"/></td>
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</tr>
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<tr>
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<th scope="row"><label
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for="<?php echo esc_attr( $args['content'] . '-id' ); ?>"><?php echo esc_html( __( 'ID attribute', 'contact-form-7' ) ); ?>
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(<?php echo esc_html( __( 'optional', 'cf7_modules' ) ); ?>)</label></th>
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<td><input type="text" name="id" class="idvalue oneline option"
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id="<?php echo esc_attr( $args['content'] . '-id' ); ?>"/></td>
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</tr>
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<tr>
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<th scope="row">
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<?php _e( 'Value', 'cf7_modules' ); ?>
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</th>
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<td>
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<input type="text" name="values" class="oneline"/>
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<div>
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<input type="checkbox" name="watermark"
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class="option"/> <?php echo esc_html( __( 'Use this text as watermark?', 'cf7_modules' ) ); ?>
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</div>
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</td>
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</tr>
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<tr>
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<th scope="row">
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<?php _e( 'Dynamic Values', 'cf7_modules' ); ?>
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</th>
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<td>
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<span class="howto"
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style="font-size:1em;"><?php _e( 'To use dynamic data from the post or page the form is embedded on, you can use the following values:', 'cf7_modules' ); ?></span>
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<ul>
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<li><?php _e( '<code>post_title</code>: The title of the post/page', 'cf7_modules' ); ?></li>
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<li><?php _e( '<code>post_url</code>: The URL of the post/page', 'cf7_modules' ); ?></li>
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<li><?php _e( '<code>post_category</code>: The categories the post is in, comma-separated', 'cf7_modules' ); ?></li>
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<li><?php _e( '<code>post_date</code>: The date the post/page was created', 'cf7_modules' ); ?></li>
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<li><?php _e( '<code>post_author</code>: The name of the author of the post/page', 'cf7_modules' ); ?></li>
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</ul>
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<span class="howto"><?php _e( 'The following values will be replaced if an user is logged in:', 'cf7_modules' ); ?></span>
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<ul>
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<li><?php _e( '<code>user_name</code>: User Login', 'cf7_modules' ); ?></li>
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<li><?php _e( '<code>user_id</code>: User ID', 'cf7_modules' ); ?></li>
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<li><?php _e( '<code>user_email</code>: User Email Address', 'cf7_modules' ); ?></li>
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<li><?php _e( '<code>user_display_name</code>: Display Name (Generally the first and last name of the user)', 'cf7_modules' ); ?></li>
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</ul>
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</td>
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</tr>
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</tbody>
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</table>
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</fieldset>
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</div>
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<div class="insert-box">
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<input type="text" name="hidden" class="tag code" readonly="readonly" onfocus="this.select()"/>
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<div class="submitbox">
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<input type="button" class="button button-primary insert-tag"
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value="<?php echo esc_attr( __( 'Insert Tag', 'contact-form-7' ) ); ?>"/>
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</div>
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<br class="clear"/>
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<p class="description mail-tag"><label
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for="<?php echo esc_attr( $args['content'] . '-mailtag' ); ?>"><?php echo sprintf( esc_html( __( "To use the value input through this field in a mail field, you need to insert the corresponding mail-tag (%s) into the field on the Mail tab.", 'contact-form-7' ) ), '<strong><span class="mail-tag"></span></strong>' ); ?>
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<input type="text" class="mail-tag code hidden" readonly="readonly"
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id="<?php echo esc_attr( $args['content'] . '-mailtag' ); ?>"/></label></p>
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</div>
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<?php
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}
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