active_tags.module in Active Tags 6

Active Tags widget for free tagging taxonomies

File

active_tags.module

<?php

/**
 * @file
 *  Active Tags widget for free tagging taxonomies
 */

/**
 * Attaches active_tags widget to fields.
 *
 * @param $field_ids
 *  mixed - Either a single field id or an array of ids.
 */
function active_tags_enable_widget($field_ids) {
  static $set_ids = array();

  // Load id into array if a string is passed in.
  if ($field_ids && !is_array($field_ids)) {
    $field_ids = array(
      $field_ids,
    );
  }

  // Ensure we are only adding each setting once.
  // This is important when previewing a node.
  foreach ($field_ids as $id) {
    if (!in_array($id, $set_ids)) {
      $ids[] = $id;
      $set_ids[] = $id;
    }
  }
  if (!empty($ids)) {
    drupal_add_css(drupal_get_path('module', 'active_tags') . '/active_tags.css', 'module');
    drupal_add_js(array(
      'active_tags' => $ids,
    ), 'setting');
    drupal_add_js(drupal_get_path('module', 'active_tags') . '/active_tags.js', 'module', 'footer');
  }
}

/**
 * Implementation of hook_form_alter.
 */
function active_tags_form_alter(&$form, $form_state, $form_id) {
  if ($form_id === 'taxonomy_form_vocabulary') {
    $form['settings']['active_tags'] = array(
      '#type' => 'checkbox',
      '#title' => t('Active Tags'),
      '#weight' => 10,
      '#default_value' => isset($form['vid']) ? variable_get('active_tags_' . $form['vid']['#value'], 0) : 0,
      '#description' => t('Swaps this vocabulary widget for an enhanced tag field if browser supports javascript.'),
    );
    $form['#submit'][] = 'active_tags_form_vocabulary_submit';
  }
  if ($form['#id'] === 'node-form' && isset($form['taxonomy']['tags'])) {
    $form['#after_build'][] = 'active_tags_node_form_attach';
  }
}

/**
 * Enables Active Tags for core taxonomy tag vocabularies.
 */
function active_tags_node_form_attach($form, $form_state) {
  $settings = array();
  foreach ($form['taxonomy']['tags'] as $id => $values) {
    if (variable_get('active_tags_' . $id, 0) == 1) {
      $settings[] = "#edit-taxonomy-tags-{$id}-wrapper";
    }
  }

  // Only load files if we found active tags enabled fields.
  if (!empty($settings)) {
    active_tags_enable_widget($settings, $form_state['submitted']);
  }
  return $form;
}

/**
 * Stores active_tags settings from taxonomy vocabulary form.
 */
function active_tags_form_vocabulary_submit($form, &$form_state) {
  variable_set('active_tags_' . $form_state['values']['vid'], $form_state['values']['active_tags']);
  return TRUE;
}

Functions

Name	Description
active_tags_enable_widget	Attaches active_tags widget to fields.
active_tags_form_alter	Implementation of hook_form_alter.
active_tags_form_vocabulary_submit	Stores active_tags settings from taxonomy vocabulary form.
active_tags_node_form_attach	Enables Active Tags for core taxonomy tag vocabularies.