Index: filefield.module
===================================================================
RCS file: /cvs/drupal-contrib/contributions/modules/filefield/filefield.module,v
retrieving revision 1.229
diff -u -r1.229 filefield.module
--- filefield.module	6 Dec 2010 06:53:06 -0000	1.229
+++ filefield.module	8 Dec 2010 04:44:48 -0000
@@ -473,6 +473,59 @@
 }
 
 /**
+ * Get a list of possible information stored in a file field "data" column.
+ */
+function filefield_data_info() {
+  static $columns;
+
+  if (!isset($columns)) {
+    $columns = array();
+    foreach (module_implements('filefield_data_info') as $module) {
+      $function = $module . '_filefield_data_info';
+      $data = (array) $function();
+      foreach ($data as $key => $value) {
+        $data[$key] = $value;
+        $data[$key]['module'] = $module;
+      }
+      $columns = array_merge($columns, $data);
+    }
+  }
+
+  return $columns;
+}
+
+/**
+ * Given an array of data options, dispatch the necessary callback function.
+ */
+function filefield_data_value($key, $value) {
+  $info = filefield_data_info();
+  if (isset($info[$key]['callback'])) {
+    $callback = $info[$key]['callback'];
+    $value = $callback($value);
+  }
+  else {
+    $value = check_plain((string) $value);
+  }
+  return $value;
+}
+
+/**
+ * Implementation of hook_filefield_data_info().
+ *
+ * Define a list of values that this module stores in the "data" column of a
+ * file field. The callback function receives the portion of the data column
+ * defined by key and should return a value suitable for printing to the page.
+ */
+function filefield_filefield_data_info() {
+  return array(
+    'description' => array(
+      'title' => t('Description'),
+      'callback' => 'check_plain',
+    ),
+  );
+}
+
+/**
  * Determine the most appropriate icon for the given file's mimetype.
  *
  * @param $file
@@ -485,7 +538,6 @@
   return _filefield_icon_url($file);
 }
 
-
 /**
  * Implementation of hook_filefield_icon_sets().
  *
Index: views/filefield_handler_field_data.inc
===================================================================
RCS file: /cvs/drupal-contrib/contributions/modules/filefield/views/filefield_handler_field_data.inc,v
retrieving revision 1.2
diff -u -r1.2 filefield_handler_field_data.inc
--- views/filefield_handler_field_data.inc	8 Jan 2010 22:38:40 -0000	1.2
+++ views/filefield_handler_field_data.inc	8 Dec 2010 04:44:48 -0000
@@ -18,27 +18,33 @@
   function options_form(&$form, &$form_state) {
     parent::options_form($form, $form_state);
 
+    $options = array();
+    $info = filefield_data_info();
+    foreach ($info as $key => $data) {
+      $options[$key] = $data['title'] . ' (' . $data['module'] .')';
+    }
+
     $form['data_key'] = array(
       '#title' => t('Data key'),
       '#type' => 'radios',
-      // TODO: Pull these values from the modules that extend FileField.
-      '#options' => drupal_map_assoc(array('description', 'title', 'alt')),
+      '#options' => $options,
       '#required' => TRUE,
       '#default_value' => $this->options['data_key'],
-      '#description' => t('The data column may (or may not) contain any of the following data. Select the data that should be output for this field.'),
+      '#description' => t('The data column may contain only a few or none any of these data options. The name of the module that provides the data is shown in parathesis.'),
       '#weight' => 4,
     );
   }
 
   function admin_summary() {
-    // Display the data to be displayed
-    return $this->options['data_key'];
+    // Display the data to be displayed.
+    $info = filefield_data_info();
+    return isset($info[$this->options['data_key']]['title']) ? $info[$this->options['data_key']]['title'] : $this->options['data_key'];
   }
 
   function render($values) {
     $values = drupal_clone($values); // Prevent affecting the original.
     $data = unserialize($values->{$this->field_alias});
-    $values->{$this->field_alias} = $data[$this->options['data_key']];
+    $values->{$this->field_alias} = filefield_data_value($this->options['data_key'], $data[$this->options['data_key']]);
     return parent::render($values);
   }