include/dnxcf_helper.php

   1 <?php
   2 defined( 'ABSPATH' ) or die( 'No script kiddies please!' );
   3
   4 // generate a unique code, allows for lenght parameter
   5 if ( ! function_exists( 'dnxcf_get_unique_code' ) ) {
   6
   7         function dnxcf_get_unique_code( $length = '' ) {
   8                 $code = md5( uniqid( rand(), true ) );
   9
  10                 if ( $length != '' ) {
  11                         return substr( $code, 0, $length );
  12                 } else {
  13                         return $code;
  14                 }
  15         }
  16 }
  17
  18 // add button in edit pages to help include our form
  19 function dnxcf_show_form_button() {
  20         $currentScreen = get_current_screen();
  21         if ( $currentScreen->parent_base == 'edit' ) {
  22                 echo '<button type="button" id="dnxcf-contact-form" class="button" onclick="dnxcf_send_code()"><span class="dashicons dashicons-testimonial"></span> ' . __( 'Add Contact Form', 'dnxcf' ) . '</button>';
  23         }
  24 }
  25 add_action( 'media_buttons', 'dnxcf_show_form_button', 11 );
  26
  27 // the actual function that outputs our shortcode once the button is pressed
  28 function dnxcf_insert_shortcode() {
  29         $currentScreen = get_current_screen();
  30         if ( $currentScreen->parent_base != 'edit' ) {
  31                 return;
  32         } ?>
  33 <script>
  34         function dnxcf_send_code() {
  35                 //Send the shortcode to the editor
  36                 window.send_to_editor("[dnx_contactform]");
  37         }
  38 </script>
  39         <?php
  40 }
  41 add_action( 'admin_footer', 'dnxcf_insert_shortcode' );
  42
  43
  44 // set default options for the plugin
  45 function dnxcf_set_options() {
  46         $defaults = array(
  47                 'dnxcf_pid_key'         => dnxcf_get_unique_code( 12 ),
  48                 'dnxcf_recv_name'       => 'admin',
  49                 'dnxcf_recv_email'      => get_bloginfo( 'admin_email' ),
  50                 'dnxcf_from_email'      => 'info@some.url',
  51                 'dnxcf_from_name'       => 'webmaster',
  52                 'dnxcf_subject'         => array(
  53                         __( 'I want to make a comment.', 'dnxcf' ),
  54                         __( 'I want to ask a question.', 'dnxcf' ),
  55                         __( 'I am interested in a product.', 'dnxcf' ),
  56                         __( 'I have to report a problem.', 'dnxcf' ),
  57                         __( 'Other (explain below)', 'dnxcf' ),
  58                 ),
  59                 // 1 = text/plain
  60                 // 2 = text/html
  61                 'dnxcf_content_type'    => '1',
  62                 'dnxcf_privacy'         => '',
  63                 'dnxcf_latitude'        => '38.2704',
  64                 'dnxcf_longitude'       => '16.2971',
  65                 'dnxcf_apikey'          => '',
  66                 'dnxcf_gmap_message'    => '',
  67                 'dnxcf_DB_VERSION'      => '2',
  68         );
  69         return $defaults;
  70 }
  71
  72 // helper function that starts up the DB
  73 function dnxcf_db_init() {
  74         global $dnxcf_options;
  75         $dnxcf_options = get_option( 'dnxcf_options' );
  76         if ( false === $dnxcf_options ) {
  77                 $dnxcf_options = dnxcf_set_options();
  78         }
  79         update_option( 'dnxcf_options', $dnxcf_options );
  80 }
  81
  82 // helper function that performs a DB version update when needed
  83 function dnxcf_db_update( $db_version ) {
  84         global $dnxcf_options;
  85         $db_defaults = dnxcf_set_options();
  86         $merge = wp_parse_args( $dnxcf_options, $db_defaults );
  87         // update DB version
  88         $merge['dnxcf_DB_VERSION'] = $db_version;
  89         update_option( 'dnxcf_options', $merge );
  90 }
  91
  92 // helper function that performs a DB check and then an init/update action
  93 function dnxcf_db_check() {
  94         global $dnxcf_options;
  95         if ( false === $dnxcf_options ) {
  96                 dnxcf_db_init();
  97         }
  98         $old_db_version = $dnxcf_options['dnxcf_DB_VERSION'];
  99         $new_db_version = DNXCF_CURRENT_DB_VERSION;
 100         if ( empty( $old_db_version ) ) {
 101                 dnxcf_db_init();
 102         }
 103         if ( intval( $old_db_version ) < intval( $new_db_version ) ) {
 104                 dnxcf_db_update( $new_db_version );
 105         }
 106 }
 107
 108 // helper function that sets the current DB Version for comparison
 109 function dnxcf_set_db_version() {
 110         // Define plugin database version. This should only change when new settings are added.
 111         if ( ! defined( 'DNXCF_CURRENT_DB_VERSION' ) ) {
 112                 define( 'DNXCF_CURRENT_DB_VERSION', 4 );
 113         }
 114 }
 115
 116 // set the "from" email name to a custom option specified by the user
 117 function dnxcf_update_from_name() {
 118         global $dnxcf_options;
 119         $dnxcf_options = get_option( 'dnxcf_options' );
 120         $dnxcf_defaults = dnxcf_set_options();
 121         $from_name = $dnxcf_options['dnxcf_from_name'];
 122         $orig_name = 'WordPress';
 123
 124         $name = ( $orig_name != $from_name ) ? $from_name : false;
 125         return $name;
 126 }
 127 if ( dnxcf_update_from_name() ) {
 128         add_filter( 'wp_mail_from_name', 'dnxcf_update_from_name' );
 129 }
 130
 131
 132 // set the "from" email address to a custom option specified by the user
 133 function dnxcf_update_from_email() {
 134         global $dnxcf_options;
 135         $dnxcf_options = get_option( 'dnxcf_options' );
 136         $dnxcf_defaults = dnxcf_set_options();
 137         $from_mail = $dnxcf_options['dnxcf_from_email'];
 138         $orig_mail = $dnxcf_defaults['dnxcf_from_email'];
 139
 140         $mail = ( $orig_mail != $from_mail ) ? $from_mail : false;
 141         return $mail;
 142 }
 143 if ( dnxcf_update_from_email() ) {
 144         add_filter( 'wp_mail_from', 'dnxcf_update_from_email' );
 145 }
 146
 147 function dnxcf_update_content_type() {
 148         global $dnxcf_options;
 149         $dnxcf_options = get_option( 'dnxcf_options' );
 150
 151         // 1 = text/plain
 152         // 2 = text/html
 153         $content_type = ( '1' == $dnxcf_options['dnxcf_content_type'] ) ? 'text/plain' : 'text/html';
 154
 155         return $content_type;
 156 }
 157 add_filter( 'wp_mail_content_type', 'dnxcf_update_content_type' );