[gh-272] Merging test into staging -c1325

git-svn-id: file:///tmp/wdn_thm_drupal/branches/drupal-7.x/staging@1348 20a16fea-79d4-4915-8869-1ea9d5ebf173

sites/all/modules/unl/unl.module

@@ -267,6 +267,19 @@ function unl_permission() {
   );
 }
 
+/**
+ * Implements hook_preprocess_page().
+ */
+function unl_preprocess_page(&$vars) {
+  switch (current_path()) {
+    case 'admin/modules':
+      if (!unl_user_is_administrator()) {
+        // Changed here rather than using hook_help because the later merely appends to the existing text.
+        $vars['page']['help']['system_help']['#markup'] = '<p>Not all modules can be turned on/off. If you have questions about modules on this page or modules not yet part of the UNL project contact an administrator.</p>';
+      }
+  }
+}
+
 /**
  * Implementation of hook_menu().
  */
@@ -473,6 +486,29 @@ function unl_form_field_ui_display_overview_form_alter(&$form, &$form_state, $fo
   }
 }
 
+/**
+ * Implementation of hook_form_FORM_ID_alter() for system_modules.
+ */
+function unl_form_system_modules_alter(&$form, &$form_state, $form_id) {
+  // Whitelist of modules that Site Admin are allowed to turn on and off on admin/modules
+  $modules = array('aggregator', 'blog', 'book', 'comment', 'translation', 'dashboard', 'forum', 'help', 'list', 'locale', 'number', 'taxonomy', 'trigger', // Core on this line, Contrib below
+                   'action_email_role', 'context', 'context_layouts', 'context_ui', 'features', 'unl_news', 'imce', 'imce_mkdir', 'imce_rename', 'menu_block', 'menu_block_export',
+                   'form_builder', 'form_builder_webform_ui', 'webform', 'webform_alt_ui',
+                   'workbench', 'workbench_access', 'workbench_files', 'workbench_media', 'workbench_moderation');
+
+  if (!unl_user_is_administrator() && isset($form['modules'])) {
+    foreach ($form['modules'] as $category_name => $category) {
+      if (is_array($category)) {
+        foreach ($category as $module_name => $module) {
+          if (!in_array($module_name, $modules) && substr($module_name,0,1) !== '#') {
+            $form['modules'][$category_name][$module_name]['#disabled'] = true;
+          }
+        }
+      }
+    }
+  }
+}
+
 /**
  * Implementation of hook_form_alter().
  */