danielebarchiesi@0: <?php
danielebarchiesi@0: 
danielebarchiesi@0: /**
danielebarchiesi@0:  * Specialized implementation of hook_page_manager_task_tasks(). See api-task.html for
danielebarchiesi@0:  * more information.
danielebarchiesi@0:  */
danielebarchiesi@0: function page_manager_poll_page_manager_tasks() {
danielebarchiesi@0:   if (!module_exists('poll')) {
danielebarchiesi@0:     return;
danielebarchiesi@0:   }
danielebarchiesi@0: 
danielebarchiesi@0:   return array(
danielebarchiesi@0:     // This is a 'page' task and will fall under the page admin UI
danielebarchiesi@0:     'task type' => 'page',
danielebarchiesi@0: 
danielebarchiesi@0:     'title' => t('All polls'),
danielebarchiesi@0:     'admin title' => t('All polls'),
danielebarchiesi@0:     'admin description' => t('When enabled, this overrides the default Drupal behavior for the polls at <em>/poll</em>. If no variant is selected, the default Drupal most recent polls will be shown.'),
danielebarchiesi@0:     'admin path' => 'poll',
danielebarchiesi@0: 
danielebarchiesi@0:     // Menu hooks so that we can alter the node/%node menu entry to point to us.
danielebarchiesi@0:     'hook menu alter' => 'page_manager_poll_menu_alter',
danielebarchiesi@0: 
danielebarchiesi@0:     // This is task uses 'context' handlers and must implement these to give the
danielebarchiesi@0:     // handler data it needs.
danielebarchiesi@0:     'handler type' => 'context',
danielebarchiesi@0: 
danielebarchiesi@0:     // Allow this to be enabled or disabled:
danielebarchiesi@0:     'disabled' => variable_get('page_manager_poll_disabled', TRUE),
danielebarchiesi@0:     'enable callback' => 'page_manager_poll_enable',
danielebarchiesi@0:     'access callback' => 'page_manager_poll_access_check',
danielebarchiesi@0:   );
danielebarchiesi@0: }
danielebarchiesi@0: 
danielebarchiesi@0: /**
danielebarchiesi@0:  * Callback defined by page_manager_poll_page_manager_tasks().
danielebarchiesi@0:  *
danielebarchiesi@0:  * Alter the node edit input so that node edit comes to us rather than the
danielebarchiesi@0:  * normal node edit process.
danielebarchiesi@0:  */
danielebarchiesi@0: function page_manager_poll_menu_alter(&$items, $task) {
danielebarchiesi@0:   if (variable_get('page_manager_poll_disabled', TRUE)) {
danielebarchiesi@0:     return;
danielebarchiesi@0:   }
danielebarchiesi@0: 
danielebarchiesi@0:   $callback = $items['poll']['page callback'];
danielebarchiesi@0:   // Override the node edit handler for our purpose.
danielebarchiesi@0:   if ($callback == 'poll_page' || variable_get('page_manager_override_anyway', FALSE)) {
danielebarchiesi@0:     $items['poll']['page callback'] = 'page_manager_poll';
danielebarchiesi@0:     $items['poll']['file path'] = $task['path'];
danielebarchiesi@0:     $items['poll']['file'] = $task['file'];
danielebarchiesi@0:   }
danielebarchiesi@0:   else {
danielebarchiesi@0:     variable_set('page_manager_poll_disabled', TRUE);
danielebarchiesi@0:     if (!empty($GLOBALS['page_manager_enabling_poll'])) {
danielebarchiesi@0:       drupal_set_message(t('Page manager module is unable to enable poll because some other module already has overridden with %callback.', array('%callback' => $callback)), 'warning');
danielebarchiesi@0:     }
danielebarchiesi@0:     return;
danielebarchiesi@0:   }
danielebarchiesi@0: 
danielebarchiesi@0: }
danielebarchiesi@0: 
danielebarchiesi@0: /**
danielebarchiesi@0:  * Entry point for our overridden node edit.
danielebarchiesi@0:  *
danielebarchiesi@0:  * This function asks its assigned handlers who, if anyone, would like
danielebarchiesi@0:  * to run with it. If no one does, it passes through to Drupal core's
danielebarchiesi@0:  * node edit, which is node_page_edit().
danielebarchiesi@0:  */
danielebarchiesi@0: function page_manager_poll() {
danielebarchiesi@0:   // Load my task plugin
danielebarchiesi@0:   $task = page_manager_get_task('poll');
danielebarchiesi@0: 
danielebarchiesi@0:   ctools_include('context');
danielebarchiesi@0:   ctools_include('context-task-handler');
danielebarchiesi@0:   $output = ctools_context_handler_render($task, '', array(), array());
danielebarchiesi@0:   if ($output !== FALSE) {
danielebarchiesi@0:     return $output;
danielebarchiesi@0:   }
danielebarchiesi@0: 
danielebarchiesi@0:   module_load_include('inc', 'poll', 'poll.pages');
danielebarchiesi@0:   $function = 'poll_page';
danielebarchiesi@0:   foreach (module_implements('page_manager_override') as $module) {
danielebarchiesi@0:     $call = $module . '_page_manager_override';
danielebarchiesi@0:     if (($rc = $call('poll')) && function_exists($rc)) {
danielebarchiesi@0:       $function = $rc;
danielebarchiesi@0:       break;
danielebarchiesi@0:     }
danielebarchiesi@0:   }
danielebarchiesi@0: 
danielebarchiesi@0:   // Otherwise, fall back.
danielebarchiesi@0:   return $function();
danielebarchiesi@0: }
danielebarchiesi@0: 
danielebarchiesi@0: /**
danielebarchiesi@0:  * Callback to enable/disable the page from the UI.
danielebarchiesi@0:  */
danielebarchiesi@0: function page_manager_poll_enable($cache, $status) {
danielebarchiesi@0:   variable_set('page_manager_poll_disabled', $status);
danielebarchiesi@0:   // Set a global flag so that the menu routine knows it needs
danielebarchiesi@0:   // to set a message if enabling cannot be done.
danielebarchiesi@0:   if (!$status) {
danielebarchiesi@0:     $GLOBALS['page_manager_enabling_poll'] = TRUE;
danielebarchiesi@0:   }
danielebarchiesi@0: }
danielebarchiesi@0: 
danielebarchiesi@0: /**
danielebarchiesi@0:  * Callback to determine if a page is accessible.
danielebarchiesi@0:  *
danielebarchiesi@0:  * @param $task
danielebarchiesi@0:  *   The task plugin.
danielebarchiesi@0:  * @param $subtask_id
danielebarchiesi@0:  *   The subtask id
danielebarchiesi@0:  * @param $contexts
danielebarchiesi@0:  *   The contexts loaded for the task.
danielebarchiesi@0:  * @return
danielebarchiesi@0:  *   TRUE if the current user can access the page.
danielebarchiesi@0:  */
danielebarchiesi@0: function page_manager_poll_access_check($task, $subtask_id, $contexts) {
danielebarchiesi@0:   return user_access('access content');
danielebarchiesi@0: }