drupal-civicrm/sites/all/modules/civicrm/CRM/Activity/Form/ActivityView.php

<?php
/*
 +--------------------------------------------------------------------+
 | CiviCRM version 4.7                                                |
 +--------------------------------------------------------------------+
 | Copyright CiviCRM LLC (c) 2004-2017                                |
 +--------------------------------------------------------------------+
 | This file is a part of CiviCRM.                                    |
 |                                                                    |
 | CiviCRM is free software; you can copy, modify, and distribute it  |
 | under the terms of the GNU Affero General Public License           |
 | Version 3, 19 November 2007 and the CiviCRM Licensing Exception.   |
 |                                                                    |
 | CiviCRM is distributed in the hope that it will be useful, but     |
 | WITHOUT ANY WARRANTY; without even the implied warranty of         |
 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.               |
 | See the GNU Affero General Public License for more details.        |
 |                                                                    |
 | You should have received a copy of the GNU Affero General Public   |
 | License and the CiviCRM Licensing Exception along                  |
 | with this program; if not, contact CiviCRM LLC                     |
 | at info[AT]civicrm[DOT]org. If you have questions about the        |
 | GNU Affero General Public License or the licensing of CiviCRM,     |
 | see the CiviCRM license FAQ at http://civicrm.org/licensing        |
 +--------------------------------------------------------------------+
 */

/**
 *
 * @package CRM
 * @copyright CiviCRM LLC (c) 2004-2017
 */

/**
 * This class handle activity view mode.
 */
class CRM_Activity_Form_ActivityView extends CRM_Core_Form {

  /**
   * Set variables up before form is built.
   */
  public function preProcess() {
    // Get the activity values.
    $activityId = CRM_Utils_Request::retrieve('id', 'Positive', $this);
    $context = CRM_Utils_Request::retrieve('context', 'String', $this);
    $cid = CRM_Utils_Request::retrieve('cid', 'Positive', $this);

    // Check for required permissions, CRM-6264.
    if ($activityId &&
      !CRM_Activity_BAO_Activity::checkPermission($activityId, CRM_Core_Action::VIEW)
    ) {
      CRM_Core_Error::fatal(ts('You do not have permission to access this page.'));
    }

    $session = CRM_Core_Session::singleton();
    if (!in_array($context, array(
      'home',
      'dashlet',
      'dashletFullscreen',
    ))
    ) {
      $url = CRM_Utils_System::url('civicrm/contact/view', "reset=1&cid={$cid}&selectedChild=activity");
    }
    else {
      $url = CRM_Utils_System::url('civicrm/dashboard', 'reset=1');
    }

    $session->pushUserContext($url);
    $defaults = array();
    $params = array('id' => $activityId);
    CRM_Activity_BAO_Activity::retrieve($params, $defaults);

    // Set activity type name and description to template.
    list($activityTypeName, $activityTypeDescription) = CRM_Core_BAO_OptionValue::getActivityTypeDetails($defaults['activity_type_id']);

    $this->assign('activityTypeName', $activityTypeName);
    $this->assign('activityTypeDescription', $activityTypeDescription);

    if (!empty($defaults['mailingId'])) {
      $this->_mailing_id = CRM_Utils_Array::value('source_record_id', $defaults);
      $mailingReport = CRM_Mailing_BAO_Mailing::report($this->_mailing_id, TRUE);
      CRM_Mailing_BAO_Mailing::getMailingContent($mailingReport, $this);
      $this->assign('mailingReport', $mailingReport);

      $full_open_report = CRM_Mailing_Event_BAO_Opened::getRows(
        $this->_mailing_id, NULL, FALSE, NULL, NULL, NULL, $cid);
      $this->assign('openreport', $full_open_report);

      $click_thru_report = CRM_Mailing_Event_BAO_TrackableURLOpen::getRows($this->_mailing_id, NULL, FALSE, NULL, NULL, NULL, NULL, $cid);
      $this->assign('clickreport', $click_thru_report);
    }

    foreach ($defaults as $key => $value) {
      if (substr($key, -3) != '_id') {
        $values[$key] = $value;
      }
    }

    // Get the campaign.
    if ($campaignId = CRM_Utils_Array::value('campaign_id', $defaults)) {
      $campaigns = CRM_Campaign_BAO_Campaign::getCampaigns($campaignId);
      $values['campaign'] = $campaigns[$campaignId];
    }
    if ($engagementLevel = CRM_Utils_Array::value('engagement_level', $defaults)) {
      $engagementLevels = CRM_Campaign_PseudoConstant::engagementLevel();
      $values['engagement_level'] = CRM_Utils_Array::value($engagementLevel, $engagementLevels, $engagementLevel);
    }

    $values['attachment'] = CRM_Core_BAO_File::attachmentInfo('civicrm_activity', $activityId);
    $this->assign('values', $values);
  }

  /**
   * Build the form object.
   */
  public function buildQuickForm() {
    $this->addButtons(array(
        array(
          'type' => 'cancel',
          'name' => ts('Done'),
          'spacing' => '&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;',
          'isDefault' => TRUE,
        ),
      )
    );
  }

}