notice fixes, CRM-14782

[civicrm-core.git] / CRM / Case / Task.php

<?php
/*
 +--------------------------------------------------------------------+
 | CiviCRM version 4.4                                                |
 +--------------------------------------------------------------------+
 | Copyright CiviCRM LLC (c) 2004-2013                                |
 +--------------------------------------------------------------------+
 | This file is a part of CiviCRM.                                    |
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 | under the terms of the GNU Affero General Public License           |
 | Version 3, 19 November 2007 and the CiviCRM Licensing Exception.   |
 |                                                                    |
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 | See the GNU Affero General Public License for more details.        |
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 | with this program; if not, contact CiviCRM LLC                     |
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*/

/**
 *
 * @package CRM
 * @copyright CiviCRM LLC (c) 2004-2013
 * $Id$
 *
 */

/**
 * class to represent the actions that can be performed on a group of contacts
 * used by the search forms
 *
 */
class CRM_Case_Task {
  CONST DELETE_CASES = 1, PRINT_CASES = 2, EXPORT_CASES = 3, RESTORE_CASES = 4;

  /**
   * the task array
   *
   * @var array
   * @static
   */
  static $_tasks = NULL;

  /**
   * the optional task array
   *
   * @var array
   * @static
   */
  static $_optionalTasks = NULL;

  /**
   * These tasks are the core set of tasks that the user can perform
   * on a contact / group of contacts
   *
   * @return array the set of tasks for a group of contacts
   * @static
   * @access public
   */
  static function &tasks() {
    if (!self::$_tasks) {
      self::$_tasks = array(
        1 => array('title' => ts('Delete Cases'),
          'class' => 'CRM_Case_Form_Task_Delete',
          'result' => FALSE,
        ),
        2 => array('title' => ts('Print Cases'),
          'class' => 'CRM_Case_Form_Task_Print',
          'result' => FALSE,
        ),
        3 => array('title' => ts('Export Cases'),
          'class' => array(
            'CRM_Export_Form_Select',
            'CRM_Export_Form_Map',
          ),
          'result' => FALSE,
        ),
        4 => array('title' => ts('Restore Cases'),
          'class' => 'CRM_Case_Form_Task_Restore',
          'result' => FALSE,
        ),
      );
      //CRM-4418, check for delete
      if (!CRM_Core_Permission::check('delete in CiviCase')) {
        unset(self::$_tasks[1]);
      }
    }

    CRM_Utils_Hook::searchTasks('case', self::$_tasks);
    asort(self::$_tasks);
    return self::$_tasks;
  }

  /**
   * These tasks are the core set of task titles
   *
   * @return array the set of task titles
   * @static
   * @access public
   */
  static function &taskTitles() {
    self::tasks();
    $titles = array();
    foreach (self::$_tasks as $id => $value) {
      // skip Print Cases task
      if ($id != 2) {
        $titles[$id] = $value['title'];
      }
    }
    return $titles;
  }

  /**
   * These tasks get added based on the context the user is in
   *
   * @return array the set of optional tasks for a group of contacts
   * @static
   * @access public
   */
  static function &optionalTaskTitle() {
    $tasks = array();
    return $tasks;
  }

  /**
   * show tasks selectively based on the permission level
   * of the user
   *
   * @param int $permission
   *
   * @return array set of tasks that are valid for the user
   * @access public
   */
  static function &permissionedTaskTitles($permission) {
    $tasks = array();
    if (($permission == CRM_Core_Permission::EDIT)
      || CRM_Core_Permission::check('access all cases and activities')
      || CRM_Core_Permission::check('access my cases and activities')
    ) {
      $tasks = self::taskTitles();
    }
    else {
      $tasks = array(
        3 => self::$_tasks[3]['title'],
      );
      //CRM-4418,
      if (CRM_Core_Permission::check('delete in CiviCase')) {
        $tasks[1] = self::$_tasks[1]['title'];
      }
    }
    return $tasks;
  }

  /**
   * These tasks are the core set of tasks
   *
   * @param int $value
   *
   * @return array the set of tasks for a group of contacts
   * @static
   * @access public
   */
  static function getTask($value) {
    self::tasks();
    if (!$value || !CRM_Utils_Array::value($value, self::$_tasks)) {
      // make the print task by default
      $value = 2;
    }

    return array(
      self::$_tasks[$value]['class'],
      self::$_tasks[$value]['result'],
    );
  }
}