Fix invalid option selected in default_font selector when font is unset (#1489112)

CHANGELOG

@@ -1,6 +1,7 @@
 CHANGELOG Roundcube Webmail
 ===========================
 
+- Fix invalid option selected in default_font selector when font is unset (#1489112)
 - Fix displaying contact with ID divisible by 100 in sql addressbook (#1489121)
 - Fix browser warnings on PDF plugin detection (#1489118)
 - Fix fatal error when parsing UUencoded messages (#1489119)

config/main.inc.php.dist

@@ -888,6 +888,6 @@ $rcmail_config['autocomplete_single'] = false;
 // Default font for composed HTML message.
 // Supported values: Andale Mono, Arial, Arial Black, Book Antiqua, Courier New,
 // Georgia, Helvetica, Impact, Tahoma, Terminal, Times New Roman, Trebuchet MS, Verdana
-$rcmail_config['default_font'] = '';
+$rcmail_config['default_font'] = 'Verdana';
 
 // end of config file

program/steps/mail/compose.inc

@@ -143,7 +143,7 @@ $OUTPUT->set_env('top_posting', intval($RCMAIL->config->get('reply_mode')) > 0);
 $OUTPUT->set_env('recipients_separator', trim($RCMAIL->config->get('recipients_separator', ',')));
 
 // default font for HTML editor
-$font = rcube_fontdefs($RCMAIL->config->get('default_font', 'Verdana'));
+$font = rcube_fontdefs($RCMAIL->config->get('default_font'));
 if ($font && !is_array($font)) {
   $OUTPUT->set_env('default_font', $font);
 }

program/steps/mail/sendmail.inc

@@ -479,7 +479,7 @@ $isHtml = (bool) get_input_value('_is_html', RCUBE_INPUT_POST);
 $message_body = get_input_value('_message', RCUBE_INPUT_POST, TRUE, $message_charset);
 
 if ($isHtml) {
-  $font   = rcube_fontdefs($RCMAIL->config->get('default_font', 'Verdana'));
+  $font   = rcube_fontdefs($RCMAIL->config->get('default_font'));
   $bstyle = $font && is_string($font) ? " style='font-family: $font'" : '';
 
   // append doctype and html/body wrappers

program/steps/settings/func.inc

@@ -653,14 +653,15 @@ function rcmail_user_prefs($current=null)
     }
 
     if (!isset($no_override['default_font'])) {
-      $field_id     = 'rcmfd_default_font';
-      $fonts        = rcube_fontdefs();
-      $default_font = $config['default_font'] ? $config['default_font'] : 'Verdana';
+      $field_id = 'rcmfd_default_font';
+      $fonts    = rcube_fontdefs();
+      $selected = $config['default_font'];
 
       $select = '<select name="_default_font" id="'.$field_id.'">';
+      $select .= '<option value=""' . (!$selected ? ' selected="selected"' : '') . '>---</option>';
       foreach ($fonts as $fname => $font)
         $select .= '<option value="'.$fname.'"'
-          . ($fname == $default_font ? ' selected="selected"' : '')
+          . ($fname == $selected ? ' selected="selected"' : '')
           . ' style=\'font-family: ' . $font . '\'>'
           . Q($fname) . '</option>';
       $select .= '</select>';