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