| file_field_delete | Implements hook_field_delete(). |
| file_field_delete_file | Check that File controls a file before attempting to delete it. |
| file_field_delete_revision | Implements hook_field_delete_revision(). |
| file_field_displayed | Determine whether a file should be displayed when outputting field content. |
| file_field_formatter_info | Implements hook_field_formatter_info(). |
| file_field_formatter_view | Implements hook_field_formatter_view(). |
| file_field_info | Implements hook_field_info(). |
| file_field_instance_settings_form | Implements hook_field_instance_settings_form(). |
| file_field_is_empty | Implements hook_field_is_empty(). |
| file_field_load | Implements hook_field_load(). |
| file_field_prepare_view | Implements hook_field_prepare_view(). |
| file_field_presave | Implements hook_field_presave(). |
| file_field_schema | Implements hook_field_schema(). |
| file_field_settings_form | Implements hook_field_settings_form(). |
| file_field_update | Implements hook_field_update(). |
| file_field_widget_form | Implements hook_field_widget_form(). |
| file_field_widget_info | Implements hook_field_widget_info(). |
| file_field_widget_process | An element #process callback for the file_generic field type. |
| file_field_widget_process_multiple | An element #process callback for a group of file_generic fields. |
| file_field_widget_settings_form | Implements hook_field_widget_settings_form(). |
| file_field_widget_upload_validators | Get the upload validators for a file field. |
| file_field_widget_uri | Determine the URI for a file field instance. |
| file_field_widget_value | The #value_callback for the file_generic field element. |
| theme_file_formatter_table | Theme function for the 'table' formatter. |
| theme_file_upload_help | Generate help text based on upload validators. |
| theme_file_widget | Theme an individual file upload widget. |
| theme_file_widget_multiple | Theme a group of file upload widgets. |
| _file_generic_settings_extensions | Element validate callback for the allowed file extensions field. |
| _file_generic_settings_file_directory_validate | Element validate callback for the file destination field. |
| _file_generic_settings_max_filesize | Element validate callback for the maximum upload size field. |
