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   1  <?php
   2  // $Id: node_edit.inc,v 1.5.2.3 2010/01/29 20:18:25 merlinofchaos Exp $
   3  
   4  /**
   5   * @file
   6   *
   7   * Plugin to provide an argument handler for a Node edit form
   8   */
   9  
  10  /**
  11   * Plugins are described by creating a $plugin array which will be used
  12   * by the system that includes this file.
  13   */
  14  $plugin = array(
  15    'title' => t("Node edit form: node ID"),
  16    // keyword to use for %substitution
  17    'keyword' => 'node',
  18    'description' => t('Creates a node edit form context from a node ID argument.'),
  19    'context' => 'ctools_node_edit_context',
  20    'placeholder form' => array(
  21      '#type' => 'textfield',
  22      '#description' => t('Enter the node ID of a node for this argument'),
  23    ),
  24  );
  25  
  26  /**
  27   * Discover if this argument gives us the node we crave.
  28   */
  29  function ctools_node_edit_context($arg = NULL, $conf = NULL, $empty = FALSE) {
  30    // If unset it wants a generic, unfilled context.
  31    if ($empty) {
  32      return ctools_context_create_empty('node_edit_form');
  33    }
  34  
  35    // We can accept either a node object or a pure nid.
  36    if (is_object($arg)) {
  37      return ctools_context_create('node_edit_form', $arg);
  38    }
  39  
  40    if (!is_numeric($arg)) {
  41      return FALSE;
  42    }
  43  
  44    $node = node_load($arg);
  45    if (!$node) {
  46      return NULL;
  47    }
  48  
  49    // This will perform a node_access check, so we don't have to.
  50    return ctools_context_create('node_edit_form', $node);
  51  }
  52