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_blog_user_page_manager_tasks() {
danielebarchiesi@0:   if (!module_exists('blog')) {
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:     'title' => t('User blog'),
danielebarchiesi@0:     'admin title' => t('User blog'),
danielebarchiesi@0:     'admin description' => t('When enabled, this overrides the default Drupal behavior for displaying user blogs at <em>blog/%user</em>. If no variant is selected, the default Drupal user blog will be used.'),
danielebarchiesi@0:     'admin path' => 'blog/%user',
danielebarchiesi@0: 
danielebarchiesi@0:     // Callback to add items to the page managertask administration form:
danielebarchiesi@0:     'task admin' => 'page_manager_blog_user_task_admin',
danielebarchiesi@0: 
danielebarchiesi@0:     'hook menu alter' => 'page_manager_blog_user_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', // handler type -- misnamed
danielebarchiesi@0:     'get arguments' => 'page_manager_blog_user_get_arguments',
danielebarchiesi@0:     'get context placeholders' => 'page_manager_blog_user_get_contexts',
danielebarchiesi@0: 
danielebarchiesi@0:     // Allow this to be enabled or disabled:
danielebarchiesi@0:     'disabled' => variable_get('page_manager_blog_user_disabled', TRUE),
danielebarchiesi@0:     'enable callback' => 'page_manager_blog_user_enable',
danielebarchiesi@0:     'access callback' => 'page_manager_blog_user_access_check',
danielebarchiesi@0:   );
danielebarchiesi@0: }
danielebarchiesi@0: 
danielebarchiesi@0: /**
danielebarchiesi@0:  * Callback defined by page_manager_blog_user_page_manager_tasks().
danielebarchiesi@0:  *
danielebarchiesi@0:  * Alter the user view input so that user view comes to us rather than the
danielebarchiesi@0:  * normal user view process.
danielebarchiesi@0:  */
danielebarchiesi@0: function page_manager_blog_user_menu_alter(&$items, $task) {
danielebarchiesi@0:   if (variable_get('page_manager_blog_user_disabled', TRUE)) {
danielebarchiesi@0:     return;
danielebarchiesi@0:   }
danielebarchiesi@0: 
danielebarchiesi@0:   // Override the user view handler for our purpose.
danielebarchiesi@0:   if ($items['blog/%user_uid_optional']['page callback'] == 'blog_page_user' || variable_get('page_manager_override_anyway', FALSE)) {
danielebarchiesi@0:     $items['blog/%user_uid_optional']['page callback'] = 'page_manager_blog_user';
danielebarchiesi@0:     $items['blog/%user_uid_optional']['file path'] = $task['path'];
danielebarchiesi@0:     $items['blog/%user_uid_optional']['file'] = $task['file'];
danielebarchiesi@0:   }
danielebarchiesi@0:   else {
danielebarchiesi@0:     // automatically disable this task if it cannot be enabled.
danielebarchiesi@0:     variable_set('page_manager_blog_user_disabled', TRUE);
danielebarchiesi@0:     if (!empty($GLOBALS['page_manager_enabling_blog_user'])) {
danielebarchiesi@0:       drupal_set_message(t('Page manager module is unable to enable blog/%user because some other module already has overridden with %callback.', array('%callback' => $items['blog/%user']['page callback'])), 'error');
danielebarchiesi@0:     }
danielebarchiesi@0:   }
danielebarchiesi@0: }
danielebarchiesi@0: 
danielebarchiesi@0: /**
danielebarchiesi@0:  * Entry point for our overridden user view.
danielebarchiesi@0:  *
danielebarchiesi@0:  * This function asks its assigned handlers who, if anyone, would like
danielebarchiesi@0:  * to run with it. If no one does, it passes through to Drupal core's
danielebarchiesi@0:  * user view, which is user_page_view().
danielebarchiesi@0:  */
danielebarchiesi@0: function page_manager_blog_user($account) {
danielebarchiesi@0:   // Load my task plugin:
danielebarchiesi@0:   $task = page_manager_get_task('blog_user');
danielebarchiesi@0: 
danielebarchiesi@0:   // Load the account into a context.
danielebarchiesi@0:   ctools_include('context');
danielebarchiesi@0:   ctools_include('context-task-handler');
danielebarchiesi@0:   $contexts = ctools_context_handler_get_task_contexts($task, '', array($account));
danielebarchiesi@0: 
danielebarchiesi@0:   $output = ctools_context_handler_render($task, '', $contexts, array($account->uid));
danielebarchiesi@0:   if ($output !== FALSE) {
danielebarchiesi@0:     return $output;
danielebarchiesi@0:   }
danielebarchiesi@0: 
danielebarchiesi@0:   module_load_include('inc', 'blog', 'blog.pages');
danielebarchiesi@0:   $function = 'blog_page_user';
danielebarchiesi@0:   foreach (module_implements('page_manager_override') as $module) {
danielebarchiesi@0:     $call = $module . '_page_manager_override';
danielebarchiesi@0:     if (($rc = $call('blog_user')) && function_exists($rc)) {
danielebarchiesi@0:       $function = $rc;
danielebarchiesi@0:       break;
danielebarchiesi@0:     }
danielebarchiesi@0:   }
danielebarchiesi@0: 
danielebarchiesi@0:   // Otherwise, fall back.
danielebarchiesi@0:   return $function($account);
danielebarchiesi@0: }
danielebarchiesi@0: 
danielebarchiesi@0: /**
danielebarchiesi@0:  * Callback to get arguments provided by this task handler.
danielebarchiesi@0:  *
danielebarchiesi@0:  * Since this is the node view and there is no UI on the arguments, we
danielebarchiesi@0:  * create dummy arguments that contain the needed data.
danielebarchiesi@0:  */
danielebarchiesi@0: function page_manager_blog_user_get_arguments($task, $subtask_id) {
danielebarchiesi@0:   return array(
danielebarchiesi@0:     array(
danielebarchiesi@0:       'keyword' => 'user',
danielebarchiesi@0:       'identifier' => t('User being viewed'),
danielebarchiesi@0:       'id' => 1,
danielebarchiesi@0:       'name' => 'uid',
danielebarchiesi@0:       'settings' => array(),
danielebarchiesi@0:     ),
danielebarchiesi@0:   );
danielebarchiesi@0: }
danielebarchiesi@0: 
danielebarchiesi@0: /**
danielebarchiesi@0:  * Callback to get context placeholders provided by this handler.
danielebarchiesi@0:  */
danielebarchiesi@0: function page_manager_blog_user_get_contexts($task, $subtask_id) {
danielebarchiesi@0:   return ctools_context_get_placeholders_from_argument(page_manager_blog_user_get_arguments($task, $subtask_id));
danielebarchiesi@0: }
danielebarchiesi@0: 
danielebarchiesi@0: /**
danielebarchiesi@0:  * Callback to enable/disable the page from the UI.
danielebarchiesi@0:  */
danielebarchiesi@0: function page_manager_blog_user_enable($cache, $status) {
danielebarchiesi@0:   variable_set('page_manager_blog_user_disabled', $status);
danielebarchiesi@0: 
danielebarchiesi@0:   // Set a global flag so that the menu routine knows it needs
danielebarchiesi@0:   // to set a message if enabling cannot be done.
danielebarchiesi@0:   if (!$status) {
danielebarchiesi@0:     $GLOBALS['page_manager_enabling_blog_user'] = 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 $contexts
danielebarchiesi@0:  *   The contexts loaded for the task.
danielebarchiesi@0:  * @return
danielebarchiesi@0:  *   TRUE if the current user can access the page.
danielebarchiesi@0:  */
danielebarchiesi@0: function page_manager_blog_user_access_check($task, $subtask_id, $contexts) {
danielebarchiesi@0:   $context = reset($contexts);
danielebarchiesi@0:   return blog_page_user_access($context->data);
danielebarchiesi@0: }