asset_embed.module in Asset 5

Asset Embed Module

This module allows you to use embed code form various sites as assets. Each provider is specified by an .inc file in the providers folder.

File

asset_embed/asset_embed.module

<?php

/**
 * @file 
 * Asset Embed Module
 *
 * This module allows you to use embed code form various sites as assets. Each
 * provider is specified by an .inc file in the providers folder.
 */

/**
 * Invoke a provider method.
 */
function asset_embed_invoke() {
  $args = func_get_args();
  $provider = array_shift($args);
  $hook = array_shift($args);
  $function = 'asset_embed_' . $provider . '_' . $hook;
  if (function_exists($function)) {
    return call_user_func_array($function, $args);
  }
  return false;
}

/**
 * return a list of available providers
 * 
 * @param $all
 *   Should all providers be returned or just the enabled ones.
 * @return
 * 	 The array of availabe providers
 */
function asset_embed_list_providers($all = FALSE) {
  static $providers = NULL;
  if ($providers) {
    return $providers;
  }
  $path = drupal_get_path('module', 'asset_embed') . '/providers';
  $files = drupal_system_listing('.*\\.inc$', $path, 'name', 0);
  foreach ($files as $file) {
    if ($all || variable_get('asset_embed_' . $file->name . '_enabled', 1)) {
      require_once "./{$file->filename}";
      $info = asset_embed_invoke($file->name, 'info');
      $providers[$file->name] = $info['name'] ? $info['name'] : $file->name;
    }
  }
  return $providers;
}
function asset_embed_extract_id($provider, $text) {
  return asset_embed_invoke($provider, 'extract_id', $text);
}
function asset_embed_asset_settings() {
  $providers = asset_embed_list_providers(TRUE);
  if (is_array($providers)) {
    foreach ($providers as $provider => $name) {
      $form[$provider] = array(
        '#type' => 'fieldset',
        '#collapsible' => TRUE,
        '#collapsed' => !variable_get('asset_embed_' . $provider . '_enabled', 1),
        '#title' => $name,
        '#tree' => FALSE,
      );
      $form[$provider]['asset_embed_' . $provider . '_enabled'] = array(
        '#type' => 'checkbox',
        '#title' => t('Enabled'),
        '#default_value' => variable_get('asset_embed_' . $provider . '_enabled', 1),
        '#return_value' => 1,
      );
      $form[$provider] = array_merge($form[$provider], (array) asset_embed_invoke($provider, 'settings'));
    }
  }
  else {
    $form[] = array(
      '#value' => t('No Providers Available'),
    );
  }
  return system_settings_form($form);
}
function asset_embed_asset_type($op = 'info', $delta = 0, $form_values = array()) {
  switch ($op) {
    case 'info':
      return array(
        'embed' => array(
          'value' => t('Embed'),
          'title' => t('Embed content from another site.'),
          'src' => drupal_get_path('module', 'asset') . '/lullacons/movie-option-add.png',
        ),
      );
    case 'form':
      switch ($delta) {
        case 'embed':
          $form['provider'] = array(
            '#type' => 'select',
            '#title' => t('Provider'),
            '#options' => asset_embed_list_providers(),
            '#weight' => -2,
          );
          $form['embed'] = array(
            '#type' => 'textarea',
            '#title' => t('Embed Code'),
            '#rows' => 3,
            '#weight' => -1,
          );
          break;
      }
      return $form;
    case 'validate':

      // return a valid asset aid
      switch ($delta) {
        case 'embed':
          if ($data = asset_embed_extract_id($form_values['provider'], $form_values['embed'])) {
            $path = $form_values['parent'] . '/' . $data['id'] . '.' . $form_values['provider'];
            $asset->filepath = $path;
            $asset->type = 'embed';
            $asset->embed_data = $data;
            $asset = asset_save($asset, $form_values);
            return $asset->aid;
          }
          else {
            form_set_error('embed', 'Error extracting video ID.</em>');
          }
          break;
      }
      break;
    case 'submit':

      // must return a valid asset aid
      switch ($delta) {
      }
      break;
  }
}
function asset_embed_asset_formatter($op = 'info', $asset = null, $attr = array()) {
  $providers = asset_embed_list_providers();
  switch ($op) {
    case 'info':
      $formats['fullsize'] = array(
        'name' => 'Full-Size Embed',
        'types' => array(
          'embed' => array(
            '*',
          ),
        ),
        'description' => t('Display the full-size version of the embedded content.'),
      );
      $formats['thumbnail'] = array(
        'name' => 'Thumbnail Embed',
        'types' => array(
          'embed' => array(
            '*',
          ),
        ),
        'description' => t('Display a thumbnail preview image of the embedded content.'),
      );
      return $formats;
    case 'init':
      break;
    case 'options':
      switch ($attr['format']) {
        case 'thumbnail':
          $form['height'] = array(
            '#type' => 'textfield',
            '#title' => t('Height'),
            '#size' => '10',
            '#default_value' => '120',
          );
          $form['width'] = array(
            '#type' => 'textfield',
            '#title' => t('Width'),
            '#size' => '10',
            '#default_value' => '160',
          );
          break;
        case 'fullsize':
          $form['height'] = array(
            '#type' => 'textfield',
            '#title' => t('Height'),
            '#size' => '10',
            '#default_value' => '335',
          );
          $form['width'] = array(
            '#type' => 'textfield',
            '#title' => t('Width'),
            '#size' => '10',
            '#default_value' => '425',
          );
          break;
      }
      $form = array_merge($form, (array) asset_embed_invoke($asset->embed['provider'], 'formatter_options', $asset, $attr['format']));
      return $form;
    case 'preview':
      if (function_exists('theme_asset_embed_' . $asset->embed['provider'] . '_thumbnail')) {
        return theme('asset_embed_' . $asset->embed['provider'] . '_thumbnail', $asset);
      }
      return theme('asset_embed_thumbnail', $asset);
    case 'img':
      return asset_embed_invoke($asset->embed['provider'], 'thumbnail_src', $asset, $attr);
      break;
    case 'details':
      break;
    case 'render':
      switch ($attr['format']) {
        case 'thumbnail':
          if (function_exists('theme_asset_embed_' . $asset->embed['provider'] . '_thumbnail')) {
            return theme('asset_embed_' . $asset->embed['provider'] . '_thumbnail', $asset);
          }
          return theme('asset_embed_thumbnail', $asset);
          break;
        case 'fullsize':
        default:
          if (function_exists('theme_asset_embed_' . $asset->embed['provider'] . '_fullsize')) {
            return theme('asset_embed_' . $asset->embed['provider'] . '_fullsize', $asset, $attr);
          }
          return theme('asset_embed_fullsize', $asset, $attr);
          break;
      }
      break;
  }
}
function asset_embed_assetapi($op = 'list', $asset = null) {
  switch ($op) {
    case 'load':
      if ($asset->type == 'embed') {
        $fields['embed'] = unserialize(db_result(db_query('SELECT data FROM {asset_embed} WHERE aid=%d', $asset->aid)));
        $fields['embed']['provider'] = $asset->extension;
      }
      return $fields;
    case 'insert':
      if ($asset->type == 'embed') {
        db_query('INSERT INTO {asset_embed} (aid, data) VALUES (%d, "%s")', $asset->aid, serialize($asset->embed_data));
      }
      break;
  }
}
function theme_asset_embed_thumbnail($asset) {
  $id = $asset->embed['id'];
  $url = "http://img.youtube.com/vi/{$id}/2.jpg";
  $alt = $title = $asset->title;
  $img = '<img src="' . check_url($url) . '" alt="' . check_plain($alt) . '" title="' . check_plain($title) . '" />';
  return $img;
}
function theme_asset_embed_fullsize($asset, $attr = array()) {
  $id = $asset->embed['id'];
  return '<object width="' . $attr['width'] . '" height="' . $attr['height'] . '">' . '<param name="movie" value="http://www.youtube.com/v/' . $id . '"></param>' . '<param name="wmode" value="transparent"></param>' . '<embed src="http://www.youtube.com/v/' . $id . '" type="application/x-shockwave-flash" ' . 'wmode="transparent" width="' . $attr['width'] . '" height="' . $attr['height'] . '">' . '</embed></object>';
}

Functions

Name	Description
asset_embed_assetapi
asset_embed_asset_formatter
asset_embed_asset_settings
asset_embed_asset_type
asset_embed_extract_id
asset_embed_invoke	Invoke a provider method.
asset_embed_list_providers	return a list of available providers
theme_asset_embed_fullsize
theme_asset_embed_thumbnail