<?php
// $Id:$

/**
 * Plugins are described by creating a $plugin array which will be used
 * by the system that includes this file.
 */
$plugin = array(
  'single' => TRUE,
  'title' => t('List of terms.'),
  'icon' => 'icon_node.png',
  'description' => t('Terms associated with the displayed node.'),
  'required context' => new ctools_context_required(t('Node'), 'node'),
  'category' => t('Node'),
  'defaults' => array('title' => '', 'vocabularies' => array()),
);

function ctools_term_node_content_type_render($subtype, $conf, $panel_args, $context) {
  $node = isset($context->data) ? drupal_clone($context->data) : NULL;
  $block = new stdClass();
  $block->module = 'term-node';

  if ($node) {
    $taxonomy_filtered = array();
    foreach ($node->taxonomy as $tid => $term) {
      if (in_array($term->vid, $conf['vocabularies'])) {
        $taxonomy_filtered[$tid] = $term;
      }
    }
    $node->taxonomy = $taxonomy_filtered;

    $block->subject = t('Taxonomy');

    $block->content = theme('links', taxonomy_link('taxonomy terms', $node));
  }
  else {
    $block->subject = t('Term list');
    $block->content = t('Terms go here.');
  }

  return $block;
}

function ctools_admin_term_node_options($context) {
  if (isset($context->data->type)) {
    $vocabs = taxonomy_get_vocabularies($context->data->type);
  }
  else {
    $vocabs = taxonomy_get_vocabularies();
  }
  $return = array();
  foreach ($vocabs as $vid => $vocab) {
    $return[$vid] = $vocab->name;
  }
  return $return;
}

/**
 * Returns an edit form for the custom type.
 */
function ctools_term_node_content_type_edit_form(&$form, &$form_state) {
  $conf = $form_state['conf'];

  $form['vocabularies'] = array(
    '#type' => 'checkboxes',
    '#title' => t('Which vocabularies'),
    '#options' => ctools_admin_term_node_options(),
    '#default_value' => $conf['vocabularies'],
    '#prefix' => '<div class="clear-block no-float">',
    '#suffix' => '</div>',
  );
}

function ctools_term_node_content_type_admin_title($subtype, $conf, $context) {
  $options = ctools_admin_term_node_options($context);
  foreach ($options as $idx => $option) {
    if (!$conf['vocabularies'][$idx]) {
      unset($options[$idx]);
    }
  }
  return t('"@s" Terms from @type', array('@s' => $context->identifier, '@type' => implode(', ', $options)));
}

function ctools_term_node_content_type_edit_form_submit(&$form, &$form_state) {
  // Copy everything from our defaults.
  foreach (array_keys($form_state['plugin']['defaults']) as $key) {
    $form_state['conf'][$key] = $form_state['values'][$key];
  }
}