Add conf setting survey_additional_teacher_modify_actions - refs BT#15281

Allow add additional actions (as links) in survey list for teachers.
e.g. ['myplugin' => ['MyPlugin', 'urlGeneratorCallback']]

main/install/configuration.dist.php

@@ -522,6 +522,9 @@ ALTER TABLE c_survey_question ADD is_required TINYINT(1) DEFAULT 0 NOT NULL;
 //$_configuration['allow_survey_availability_datetime'] = false;
 // Mark the "Required" field during question creation process when displaying the form.
 //$_configuration['survey_mark_question_as_required'] = false;
+// Allow add additional actions (as links) in survey list for teachers.
+// e.g. ['myplugin' => ['MyPlugin', 'urlGeneratorCallback']]
+//$_configuration['survey_additional_teacher_modify_actions'] = [];
 // ------
 
 // Allow career diagram, requires a DB change:

main/survey/survey.php

@@ -159,6 +159,8 @@ if ($survey_data['survey_type'] != 3) {
     }
 }
 
+$survey_actions .= SurveyUtil::getAdditionalTeacherActions($survey_id, ICON_SIZE_MEDIUM);
+
 echo '<div class="actions">'.$survey_actions.'</div>';
 
 $urlQuestion = api_get_path(WEB_CODE_PATH).'survey/question.php?'.api_get_cidreq().'&action=add';

main/survey/surveyUtil.class.php

@@ -2919,6 +2919,8 @@ class SurveyUtil
         if (api_is_allowed_to_edit() ||
             api_is_element_in_the_session(TOOL_SURVEY, $survey_id)
         ) {
+            $actions[] = self::getAdditionalTeacherActions($survey_id);
+
             $warning = addslashes(api_htmlentities(get_lang('DeleteSurvey').'?', ENT_QUOTES));
             $actions[] = Display::url(
                 Display::return_icon('delete.png', get_lang('Delete')),
@@ -2933,6 +2935,34 @@ class SurveyUtil
         return implode(PHP_EOL, $actions);
     }
 
+    /**
+     * Get the additional actions added in survey_additional_teacher_modify_actions configuration
+     *
+     * @param int $surveyId
+     * @param int $iconSize
+     *
+     * @return string
+     */
+    public static function getAdditionalTeacherActions($surveyId, $iconSize = ICON_SIZE_SMALL)
+    {
+        $additionalActions = api_get_configuration_value('survey_additional_teacher_modify_actions') ?: [];
+
+        if (empty($additionalActions)) {
+            return '';
+        }
+
+        $actions = [];
+
+        foreach ($additionalActions as $additionalAction) {
+            $actions[] = call_user_func(
+                $additionalAction,
+                ['survey_id' => $surveyId, 'icon_size' => $iconSize]
+            );
+        }
+
+        return implode(PHP_EOL, $actions);
+    }
+
     /**
      * @param int $survey_id
      *