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
  19 // add button in edit pages to help include our form
  20 function dnxcf_show_form_button() {
  21     $currentScreen = get_current_screen();
  22     if ( $currentScreen->parent_base == "edit" ) {
  23         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>';
  24     }
  25 }
  26 add_action( 'media_buttons', 'dnxcf_show_form_button', 11 );
  27
  28 // the actual function that outputs our shortcode once the button is pressed
  29 function dnxcf_insert_shortcode() {
  30     $currentScreen = get_current_screen();
  31     if ( $currentScreen->parent_base != "edit" ) {
  32         return;
  33     } ?>
  34 <script>
  35     function dnxcf_send_code() {
  36         //Send the shortcode to the editor
  37         window.send_to_editor("[dnx_contactform]");
  38     }
  39 </script>
  40 <?php
  41 }
  42 add_action( 'admin_footer', 'dnxcf_insert_shortcode' );
  43
  44
  45 // set default options for the plugin
  46 function dnxcf_set_options() {
  47     $defaults = array(
  48         'dnxcf_pid_key'         => dnxcf_get_unique_code(12),
  49         'dnxcf_recv_name'       => 'admin',
  50         'dnxcf_recv_email'      => get_bloginfo('admin_email'),
  51         'dnxcf_from_email'      => 'info@some.url',
  52         'dnxcf_from_name'       => 'webmaster',
  53         'dnxcf_subject'         => array(
  54             __('I want to make a comment.', 'dnxcf'),
  55             __('I want to ask a question.', 'dnxcf'),
  56             __('I am interested in a product.', 'dnxcf'),
  57             __('I have to report a problem.', 'dnxcf'),
  58             __('Other (explain below)', 'dnxcf')
  59         ),
  60         // 1 = text/plain
  61         // 2 = text/html
  62         'dnxcf_content_type'    => '1',
  63         'dnxcf_privacy'         => '',
  64         'dnxcf_latitude'        => '38.2704',
  65         'dnxcf_longitude'       => '16.2971',
  66         'dnxcf_apikey'          => '',
  67         'dnxcf_gmap_message'    => '',
  68         'dnxcf_DB_VERSION'      => '2'
  69     );
  70     return $defaults;
  71 }
  72
  73 // helper function that starts up the DB
  74 function dnxcf_db_init() {
  75     global $dnxcf_options;
  76     $dnxcf_options = get_option('dnxcf_options');
  77     if( false === $dnxcf_options ) {
  78         $dnxcf_options = dnxcf_set_options();
  79     }
  80     update_option('dnxcf_options', $dnxcf_options);
  81 }
  82
  83 // helper function that performs a DB version update when needed
  84 function dnxcf_db_update($db_version) {
  85     global $dnxcf_options;
  86     $db_defaults = dnxcf_set_options();
  87     $merge = wp_parse_args( $dnxcf_options, $db_defaults );
  88     // update DB version
  89     $merge['dnxcf_DB_VERSION'] = $db_version;
  90     update_option('dnxcf_options', $merge);
  91 }
  92
  93 // helper function that performs a DB check and then an init/update action
  94 function dnxcf_db_check() {
  95     global $dnxcf_options;
  96     if(false === $dnxcf_options) {
  97         dnxcf_db_init();
  98     }
  99     $old_db_version = $dnxcf_options['dnxcf_DB_VERSION'];
 100     $new_db_version = DNXCF_CURRENT_DB_VERSION;
 101     if(empty($old_db_version)) {
 102         dnxcf_db_init();
 103     }
 104     if( intval($old_db_version) < intval($new_db_version) ) {
 105         dnxcf_db_update( $new_db_version );
 106     }
 107 }
 108
 109 // helper function that sets the current DB Version for comparison
 110 function dnxcf_set_db_version() {
 111     // Define plugin database version. This should only change when new settings are added.
 112     if ( ! defined( 'DNXCF_CURRENT_DB_VERSION' ) ) {
 113         define( 'DNXCF_CURRENT_DB_VERSION', 4 );
 114     }
 115 }
 116
 117 // set the "from" email name to a custom option specified by the user
 118 function dnxcf_update_from_name() {
 119     global $dnxcf_options;
 120     $dnxcf_options = get_option('dnxcf_options');
 121     $dnxcf_defaults = dnxcf_set_options();
 122     $from_name = $dnxcf_options['dnxcf_from_name'];
 123     $orig_name = 'WordPress';
 124
 125     $name = ( $orig_name != $from_name ) ? $from_name : false;
 126     return $name;
 127 }
 128 if (dnxcf_update_from_name())
 129     add_filter( 'wp_mail_from_name', 'dnxcf_update_from_name' );
 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 function dnxcf_update_content_type() {
 147     global $dnxcf_options;
 148     $dnxcf_options = get_option('dnxcf_options');
 149
 150     // 1 = text/plain
 151     // 2 = text/html
 152     $content_type = ( "1" == $dnxcf_options['dnxcf_content_type'] ) ? 'text/plain' : 'text/html';
 153
 154     return $content_type;
 155 }
 156 add_filter( 'wp_mail_content_type', 'dnxcf_update_content_type' );