Implement the whole export/import workflow.

ctools.module

@@ -33,3 +33,23 @@ function ctools_get_plugins($module, $type, $id = NULL) {
   ctools_include('plugins');
   return _ctools_get_plugins($module, $type, $id);
 }
+
+/**
+ * Provide a form for displaying an export.
+ *
+ * This is a simple form that should be invoked like this:
+ * @code
+ *   $output = drupal_get_form('ctools_export_form', $code, $object_title);
+ * @endcode
+ */
+function ctools_export_form(&$form_state, $code, $title = '') {
+  $lines = substr_count($code, "\n");
+  $form['code'] = array(
+    '#type' => 'textarea',
+    '#title' => $title,
+    '#default_value' => $code,
+    '#rows' => $lines,
+  );
+
+  return $form;
+}
\ No newline at end of file

delegator/css/task-handlers.css

@@ -17,3 +17,16 @@
   border: 1px solid red;
   padding: 1em;
 }
+
+.delegator-operations div {
+  display: inline;
+}
+
+.delegator-disabled {
+  color: #ccc;
+}
+
+.delegator-operations select {
+  width: 10em;
+}
+

delegator/delegator.install

@@ -26,6 +26,7 @@ function delegator_schema_1() {
         'type' => 'serial',
         'not null' => TRUE,
         'description' => t('Primary ID field for the table. Not used for anything except internal lookups.'),
+        'no export' => TRUE,
       ),
       'name' => array(
         'type' => 'varchar',

delegator/delegator.module

@@ -60,6 +60,22 @@ function delegator_menu() {
     'file path' => drupal_get_path('module', 'system'),
   );
 
+  $items['admin/build/delegator/list'] = array(
+    'title' => 'Tasks',
+    'type' => MENU_DEFAULT_LOCAL_TASK,
+    'weight' => -10,
+  );
+
+  // Set up our own menu items here.
+  $items['admin/build/delegator/import'] = array(
+    'title' => 'Import',
+    'page callback' => 'drupal_get_form',
+    'page arguments' => array('delegator_admin_import_task_handler'),
+    'access arguments' => array('administer delegator'),
+    'file' => 'delegator.admin.inc',
+    'type' => MENU_LOCAL_TASK,
+  );
+
   $tasks = delegator_get_tasks();
 
   foreach ($tasks as $id => $task) {
@@ -95,6 +111,15 @@ function delegator_menu() {
       'file' => 'delegator.admin.inc',
     );
 
+    // Form to add export a handler
+    $items['admin/build/delegator/' . $id . '/export/%'] = array(
+      'page callback' => 'delegator_administer_task_handler_export',
+      'page arguments' => array($id, 5),
+      'access callback' => $access_callback,
+      'access arguments' => $access_arguments,
+      'file' => 'delegator.admin.inc',
+    );
+
     // Form to break a lock on this task.
     $items['admin/build/delegator/' . $id . '/break-lock'] = array(
       'title' => 'Break lock',
@@ -277,6 +302,22 @@ function delegator_delete_task_handler($handler) {
   db_query("DELETE FROM {delegator_weights} WHERE name = '%s'", $handler->name);
 }
 
+function delegator_export_task_handler($handler, $indent = '') {
+  ctools_include('export');
+  ctools_include('plugins');
+  $handler = drupal_clone($handler);
+
+  $append = '';
+  if ($function = ctools_plugin_load_function('delegator', 'task_handlers', $handler->handler, 'export')) {
+    $append = $function($handler, $indent);
+  }
+
+  $output = ctools_export_object('delegator_handlers', $handler, 'handler', $indent);
+  $output .= $append;
+
+  return $output;
+}
+
 /**
  * Set an overidden weight for a task handler.
  *

delegator/help/api-task-handler.html

@@ -9,6 +9,9 @@ task handler definition:
   default conf -- either an array() of default conf data or a callback that returns an array.
     params: $handler, $task, $subtask_id
   save -- callback to call just prior to the task handler being saved so it can adjust its data.
+    params: &$handler, $update (as drupal_write_record would receive)
+  export -- callback to call just prior to the task being exported. It should return text to append to the export if necessary. 
+    params: &$handler, $indent
 
   forms => array(
     'id' => array(

delegator/js/task-handlers.js

@@ -18,4 +18,24 @@ Drupal.behaviors.zzGoLastDelegatorTaskList = function(context) {
       Drupal.tableDrag[id].oldRowElement = $row;
     }
   }
+
+  $('.delegator-operations select:not(.delegator-processed)', context).each(function() {
+    var $next = $(this).parent().next('input');
+    $next.hide();
+    $(this).change(function() {
+      var val = $(this).val();
+      // ignore empty
+      if (!val) {
+        return;
+      }
+
+      // force confirm on delete
+      if ($(this).val() == 'delete' && !confirm(Drupal.t('Remove this task?'))) {
+        $(this).val('');
+        return;
+      }
+
+      $next.trigger('click');
+    });
+  });
 }
\ No newline at end of file

includes/export.inc

@@ -152,30 +152,28 @@ function ctools_export_load_object($table, $type = 'all', $args = array()) {
         }
       }
       else if ($type == 'names') {
-        if (!in_array($names, $object->{$export['key']})) {
+        if (!in_array($object->{$export['key']}, $args)) {
           continue;
         }
       }
 
-      // Determine if default panel is enabled or disabled.
+      // Determine if default object is enabled or disabled.
       if (isset($status[$object->name])) {
         $object->disabled = $status[$object->name];
       }
 
       if (!empty($cache[$table][$object->name])) {
         $cache[$table][$object->name]->type = t('Overridden');
-        $cache[$table][$object->name]->export_status |= EXPORT_IN_CODE;
+        $cache[$table][$object->name]->export_type |= EXPORT_IN_CODE;
         if ($type == 'conditions') {
-          $return[$object->name] = $cache[$table][$object->name]->type;
+          $return[$object->name] = $cache[$table][$object->name];
         }
       }
       else {
         $object->type = t('Default');
-        $object->export_status = EXPORT_IN_CODE;
+        $object->export_type = EXPORT_IN_CODE;
         $object->in_code_only = TRUE;
-        // move the 'display' to the new 'primary' location.
-        $object->primary = $object->display;
-        unset($object->display);
+
         $cache[$table][$object->name] = $object;
         if ($type == 'conditions') {
           $return[$object->name] = $object;
@@ -212,6 +210,45 @@ function ctools_export_load_object($table, $type = 'all', $args = array()) {
   return $return;
 }
 
+/**
+ * Get the default version of an object, if it exists.
+ *
+ * This function doesn't care if an object is in the database or not and
+ * does not check. This means that export_type could appear to be incorrect,
+ * because a version could exist in the database. However, it's not
+ * incorrect for this function as it is *only* used for the default
+ * in code version.
+ */
+function ctools_get_default_object($table, $name) {
+  $schema = ctools_export_get_schema($table);
+  $export = $schema['export'];
+
+  if (!$export['default hook']) {
+    return;
+  }
+
+  // @todo add a method to load .inc files for this.
+  $defaults = module_invoke_all($export['default hook']);
+  $status = variable_get($export['status'], array());
+
+  if (!isset($defaults[$name])) {
+    return;
+  }
+
+  $object = $defaults[$name];
+
+  // Determine if default object is enabled or disabled.
+  if (isset($status[$object->name])) {
+    $object->disabled = $status[$object->name];
+  }
+
+  $object->type = t('Default');
+  $object->export_type = EXPORT_IN_CODE;
+  $object->in_code_only = TRUE;
+
+  return $object;
+}
+
 /**
  * Unpack data loaded from the database onto an object.
  *
@@ -276,6 +313,51 @@ function ctools_var_export($var, $prefix = '') {
   return $output;
 }
 
+/**
+ * Export an object into code.
+ */
+function ctools_export_object($table, $object, $identifier, $indent = '', $additions = array(), $additions2 = array()) {
+  $schema = drupal_get_schema($table);
+
+  $output = $indent . '$' . $identifier . ' = new ' . get_class($object) . ";\n";
+
+  $output .= $indent . '$' . $identifier . '->disabled' . ' = FALSE; /* Edit this to true to make a default ' . $identifier . ' disabled initially */' . "\n";
+
+  // Put top additions here:
+  foreach ($additions as $field => $value) {
+    $output .= $indent . '$' . $identifier . '->' . $field . ' = ' . ctools_var_export($value, $indent) . ";\n";
+  }
+
+  // Go through our schema and build correlations.
+  foreach ($schema['fields'] as $field => $info) {
+    if (!empty($info['no export'])) {
+      continue;
+    }
+    if (!isset($object->$field)) {
+      if (isset($info['default'])) {
+        $object->$field = $info['default'];
+      }
+      else {
+        $object->$field = '';
+      }
+    }
+
+    $value = $object->$field;
+    if ($info['type'] == 'int') {
+      $value = (isset($info['size']) && $info['size'] == 'tiny') ? (bool) $value : (int) $value;
+    }
+
+    $output .= $indent . '$' . $identifier . '->' . $field . ' = ' . ctools_var_export($value, $indent) . ";\n";
+  }
+
+  // And bottom additions here
+  foreach ($additions2 as $field => $value) {
+    $output .= $indent . '$' . $identifier . '->' . $field . ' = ' . ctools_var_export($value, $indent) . ";\n";
+  }
+
+  return $output;
+}
+
 /**
  * Get the schema for a given table.
  *
@@ -303,7 +385,7 @@ function ctools_export_get_schema($table) {
 /**
  * Set the status of a default $object as a variable.
  *
- * The status, in this case, is whether or not it is 'enabled' or 'disabled'
+ * The status, in this case, is whether or not it is 'disabled'
  * and is only valid for in-code objects that do not have a database
  * equivalent. This function does not check to make sure $object actually
  * exists.
@@ -311,6 +393,7 @@ function ctools_export_get_schema($table) {
 function ctools_export_set_status($table, $name, $new_status = TRUE) {
   $schema = ctools_export_get_schema($table);
   $status = variable_get($schema['export']['status'], array());
+
   $status[$name] = $new_status;
   variable_set($schema['export']['status'], $status);
 }