partial revert of 23e8f02b

okay. I can't read. we already had a multiline config. It's the default.
So I reverted my change, except for making use of formText/cleanText for
proper line ending handling and I added made focused textareas a bit
larger.

lib/plugins/config/settings/config.class.php

@@ -409,7 +409,7 @@ if (!class_exists('setting')) {
         }
 
         $key = htmlspecialchars($this->_key);
-        $value = htmlspecialchars($value);
+        $value = formText($value);
 
         $label = '<label for="config___'.$key.'">'.$this->prompt($plugin).'</label>';
         $input = '<textarea rows="3" cols="40" id="config___'.$key.'" name="config['.$key.']" class="edit" '.$disable.'>'.$value.'</textarea>';
@@ -494,33 +494,6 @@ if (!class_exists('setting_string')) {
   }
 }
 
-if (!class_exists('setting_text')) {
-    class setting_text extends setting {
-        function html(&$plugin, $echo=false) {
-            $value = '';
-            $disable = '';
-
-            if ($this->is_protected()) {
-                $value = $this->_protected;
-                $disable = 'disabled="disabled"';
-            } else {
-                if ($echo && $this->_error) {
-                    $value = $this->_input;
-                } else {
-                    $value = is_null($this->_local) ? $this->_default : $this->_local;
-                }
-            }
-
-            $key = htmlspecialchars($this->_key);
-            $value = formText($value);
-
-            $label = '<label for="config___'.$key.'">'.$this->prompt($plugin).'</label>';
-            $input = '<textarea id="config___'.$key.'" name="config['.$key.']" class="edit" '.$disable.'>'.$value.'</textarea>';
-            return array($label,$input);
-        }
-    }
-}
-
 if (!class_exists('setting_password')) {
   class setting_password extends setting_string {
 

lib/plugins/config/settings/config.metadata.php

@@ -15,7 +15,6 @@
  *   -------------------------------------------
  *   ''             - default class ('setting'), textarea, minimal input validation, setting output in quotes
  *   'string'       - single line text input, minimal input validation, setting output in quotes
- *   'text'         - multi line text input, minimal input validation, setting output in quotes
  *   'numeric'      - text input, accepts numbers and arithmetic operators, setting output without quotes
  *                    if given the '_min' and '_max' parameters are used for validation
  *   'numericopt'   - like above, but accepts empty values

lib/plugins/config/style.css

@@ -104,6 +104,10 @@
     height: 4em;
 }
 
+#config__manager td textarea.edit:focus {
+    height: 10em;
+}
+
 #config__manager tr .input,
 #config__manager tr input,
 #config__manager tr textarea,