Club Drupal

<?php

/**

 * Specialized implementation of hook_page_manager_task_tasks(). See api-task.html for

 * more information.

 */

function page_manager_contact_user_page_manager_tasks() {

  if (!module_exists('contact')) {

    return;

  }

  return array(

    // This is a 'page' task and will fall under the page admin UI

    'task type' => 'page',

    'title' => t('User contact'),

    'admin title' => t('User contact'),

    'admin description' => t('When enabled, this overrides the default Drupal behavior for displaying the user contact form at <em>user/%user/contact</em>. If no variant is selected, the default Drupal user contact form will be used.'),

    'admin path' => 'user/%user/contact',

    // Callback to add items to the page managertask administration form:

    'task admin' => 'page_manager_contact_user_task_admin',

    'hook menu alter' => 'page_manager_contact_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_contact_user_get_arguments',

    'get context placeholders' => 'page_manager_contact_user_get_contexts',

    // Allow this to be enabled or disabled:

    'disabled' => variable_get('page_manager_contact_user_disabled', TRUE),

    'enable callback' => 'page_manager_contact_user_enable',

    'access callback' => 'page_manager_contact_user_access_check',

  );

}

/**

 * Callback defined by page_manager_contact_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_contact_user_menu_alter(&$items, $task) {

  if (variable_get('page_manager_contact_user_disabled', TRUE)) {

    return;

  }

  $callback = $items['user/%user/contact']['page callback'];

  if ($callback == 'drupal_get_form') {

    $callback = $items['user/%user/contact']['page arguments'][0];

  }

  // Override the user view handler for our purpose.

  if ($callback == 'contact_personal_form' || variable_get('page_manager_override_anyway', FALSE)) {

    $items['user/%user/contact']['page callback'] = 'page_manager_contact_user';

    $items['user/%user/contact']['file path'] = $task['path'];

    $items['user/%user/contact']['file'] = $task['file'];

  }

  else {

    // automatically disable this task if it cannot be enabled.

    variable_set('page_manager_contact_user_disabled', TRUE);

    if (!empty($GLOBALS['page_manager_enabling_contact_user'])) {

      drupal_set_message(t('Page manager module is unable to enable user/%user/contact because some other module already has overridden with %callback.', array('%callback' => $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_contact_user($form_id, $account) {

  // Load my task plugin:

  $task = page_manager_get_task('contact_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', 'contact', 'contact.pages');

  $function = 'contact_personal_form';

  foreach (module_implements('page_manager_override') as $module) {

    $call = $module . '_page_manager_override';

    if (($rc = $call('contact_user')) && function_exists($rc)) {

      $function = $rc;

      break;

    }

  }

  // Otherwise, fall back.

  return drupal_get_form($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_contact_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_contact_user_get_contexts($task, $subtask_id) {

  return ctools_context_get_placeholders_from_argument(page_manager_contact_user_get_arguments($task, $subtask_id));

}

/**

 * Callback to enable/disable the page from the UI.

 */

function page_manager_contact_user_enable($cache, $status) {

  variable_set('page_manager_contact_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_contact_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_contact_user_access_check($task, $subtask_id, $contexts) {

  $context = reset($contexts);

  return _contact_personal_tab_access($context->data);

}