controllers/tab/settings/SettingsTabHandler.inc.php

<?php

// Import the base Handler.
import('classes.handler.Handler');
import('lib.pkp.classes.core.JSONMessage');

class SettingsTabHandler extends Handler {

   var $_currentTab;

   var $_pageTabs;


   function SettingsTabHandler($role) {
      parent::Handler();
      $this->addRoleAssignment(
         $role,
         array('saveFormData', 'showTab')
      );
   }


   //
   // Getters and Setters
   //
   function getCurrentTab() {
      return $this->_currentTab;
   }

   function setCurrentTab($currentTab) {
      $this->_currentTab = $currentTab;
   }

   function getPageTabs() {
      return $this->_pageTabs;
   }

   function setPageTabs($pageTabs) {
      $this->_pageTabs = $pageTabs;
   }

   //
   // Extended methods from Handler
   //
   function initialize(&$request) {
      $this->setCurrentTab($request->getUserVar('tab'));
   }

   function authorize(&$request, $args, $roleAssignments) {
      import('classes.security.authorization.OmpPressAccessPolicy');
      $this->addPolicy(new OmpPressAccessPolicy($request, $roleAssignments));
      return parent::authorize($request, $args, $roleAssignments);
   }

   //
   // Public handler methods
   //
   function showTab($args, &$request) {
      $this->setupTemplate();
      if ($this->_isValidTab()) {
         if ($this->_isTabTemplate()) {
            $this->setupTemplate(true);
            $templateMgr =& TemplateManager::getManager();
            if ($this->_isManagementHandler()) {
               // Pass to template if we are in wizard mode.
               $templateMgr->assign('wizardMode', $this->getWizardMode());
            }
            $templateMgr->assign('canEdit', true);
            return $templateMgr->fetchJson($this->_getTabTemplate());
         } else {
            $tabForm = $this->getTabForm();
            $tabForm->initData($request);
            $json = new JSONMessage(true, $tabForm->fetch($request));
            return $json->getString();
         }
      }
   }

   function saveFormData($args, &$request) {
      $json = new JSONMessage();

      if ($this->_isValidTab()) {
         $tabForm = $this->getTabForm();

         // Try to save the form data.
         $tabForm->readInputData($request);
         if($tabForm->validate()) {
            $result = $tabForm->execute($request);
            if ($result !== false) {
               $notificationManager = new NotificationManager();
               $user =& $request->getUser();
               $notificationManager->createTrivialNotification($user->getId());
            }
         } else {
            $json->setStatus(false);
         }
      }

      return $json->getString();
   }

   function getTabForm() {
      $currentTab = $this->getCurrentTab();
      $pageTabs = $this->getPageTabs();

      // Search for a form using the tab name.
      import($pageTabs[$currentTab]);
      $tabFormClassName = $this->_getFormClassName($pageTabs[$currentTab]);

      if ($this->_isManagementHandler()) {
         $tabForm = new $tabFormClassName($this->getWizardMode());
      } else {
         $tabForm = new $tabFormClassName();
      }

      assert(is_a($tabForm, 'Form'));

      return $tabForm;
   }


   //
   // Private helper methods.
   //
   function _getTabTemplate() {
      $currentTab = $this->getCurrentTab();
      $pageTabs = $this->getPageTabs();

      return $pageTabs[$currentTab];
   }

   function _isValidTab() {
      if (array_key_exists($this->getCurrentTab(), $this->getPageTabs())) {
         return true;
      } else {
         assert(false);
         return false;
      }
   }

   function _isTabTemplate() {
      $currentTab = $this->getCurrentTab();
      $pageTabs = $this->getPageTabs();

      return (strstr($pageTabs[$currentTab], '.tpl'));
   }

   function _getFormClassName($classPath) {
      $needle = '.form.';
      $formClassName = strstr($classPath, $needle);
      $formClassName = trim(str_replace($needle, ' ', $formClassName));
      return $formClassName;
   }

   function _isManagementHandler() {
      return is_subclass_of($this, 'ManagerSettingsTabHandler');
   }
}

?>