node_kaltura_mix.module in Kaltura 6.2

File

plugins/node_kaltura_mix/node_kaltura_mix.module

<?php

/*
 * @file
 * provides kaltura mix as node type
 *
 * Kaltura mix can be a kshow or a roughcut, according to module internal settings
 * kshow is going to be depracated in the next version of Kaltura API
 *
 */

/*
 * Implementation of hook_perm().
 */
function node_kaltura_mix_perm() {
  return array(
    'create kaltura mixes',
    'edit all kaltura mixes',
    'edit own kaltura mixes',
    'view kaltura mixes',
  );
}

/*
 * Implementation of hook_access().
 */
function node_kaltura_mix_access($op, $node, $account) {
  switch ($op) {
    case 'create':
      return user_access('create kaltura mixes', $account);
    case 'update':
      return user_access('edit all kaltura mixes', $account) || user_access('edit own kaltura mixes', $account) && $account->uid == $node->uid;
    case 'delete':
      return user_access('delete kaltura mixes', $account);
  }
}

/**
 * Implementation of hook_menu().
 */
function node_kaltura_mix_menu() {
  $items = array();
  $items['admin/settings/kaltura/kaltura_mix_settings'] = array(
    'title' => 'Media Remix Settings',
    'description' => 'Administer the kaltura mix module.',
    'page callback' => 'drupal_get_form',
    'page arguments' => array(
      'kaltura_mix_settings_form',
    ),
    'access arguments' => array(
      'administer kaltura',
    ),
    'type' => MENU_LOCAL_TASK,
    'weight' => -6,
  );
  $items['kaltura/clone/%/%'] = array(
    'title' => 'Clone Remix',
    'page callback' => 'kaltura_clone_mix',
    'access arguments' => array(
      'clone kaltura mixes',
    ),
    'page arguments' => array(
      2,
      3,
      4,
    ),
    'type' => MENU_CALLBACK,
  );
  return $items;
}

/*
 * provides admin settings page for mix nodes
 * currently - the only settings are the taxonomy vocabularies corresponding to tags and admin tags of kaltura item
 */
function kaltura_mix_settings_form() {
  $form['entry_wizards'] = array(
    '#type' => 'fieldset',
    '#title' => t('Wizards'),
    '#collapsible' => TRUE,
    '#collapsed' => TRUE,
    '#weight' => 0,
  );
  list($regular, $custom) = kaltura_choose_cw('kaltura_mix_roughcut_cw_type', 'kaltura_mix_roughcut_cw_custom');
  $form['entry_wizards']['kaltura_mix_roughcut_cw_type'] = $regular;
  $form['entry_wizards']['kaltura_mix_roughcut_cw_custom'] = $custom;

  /* Editor section */
  $default_editor = variable_get('kaltura_mix_roughcut_editor_type', KalturaSettings_AE_UICONF_ID);
  $form['entry_wizards']['kaltura_mix_roughcut_editor_type'] = array(
    '#type' => 'select',
    '#title' => t('Editor Type'),
    '#options' => array(
      KalturaSettings_SE_UICONF_ID => 'Simple',
      KalturaSettings_AE_UICONF_ID => 'Advanced',
      '1' => 'Custom - Simple',
      '2' => 'Custom - Advanced',
    ),
    '#attributes' => array(
      'onChange' => 'change_editor(this.options[this.selectedIndex].value)',
    ),
    '#default_value' => $default_editor,
  );
  $pre_edit_custom = '<script type="text/javascript">
        function change_editor(val)
        {
          div = document.getElementById("editor_custom");
          if (val == 1  || val == 2) div.style.display="block";
          else  div.style.display="none";
        }</script>';
  $custom_editor_display = $default_editor != '1' && $default_editor != '2' ? 'style="display:none"' : '';
  $form['entry_wizards']['kaltura_mix_roughcut_editor_custom'] = array(
    '#type' => 'textfield',
    '#size' => 10,
    '#title' => t('Custom Editor'),
    '#description' => t('Please insert ui_conf_id only'),
    '#prefix' => $pre_edit_custom . '<div id="editor_custom" ' . $custom_editor_display . '>',
    '#suffix' => '</div>',
    '#default_value' => variable_get('kaltura_mix_roughcut_editor_custom', ''),
  );
  $taxonomy_array = taxonomy_get_vocabularies($type = 'kaltura_mix');
  $options[] = '';
  foreach ($taxonomy_array as $voc) {
    if ($voc->tags == 1) {
      $options[$voc->vid] = $voc->name;
    }
  }
  $form['mix_taxonomy'] = array(
    '#type' => 'fieldset',
    '#title' => 'Taxonomy',
    '#collapsible' => TRUE,
    '#collapsed' => TRUE,
    '#weight' => -1,
  );
  $form['mix_taxonomy']['kaltura_mix_tags_voc'] = array(
    '#title' => 'Taxonomy Vocabulary for Tags',
    '#description' => 'must be a \'free tagging\' vocabulary that is enabled for kaltura mix content type<br />only vocabularies that meets these requirements will apear in the list',
    '#type' => 'select',
    '#options' => $options,
    '#default_value' => variable_get('kaltura_mix_tags_voc', ''),
    '#required' => FALSE,
  );
  $form['mix_taxonomy']['kaltura_mix_admin_tags_voc'] = array(
    '#title' => 'Taxonomy Vocabulary for Admin Tags',
    '#description' => 'must be a \'free tagging\' vocabulary that is enabled for kaltura mix content type<br />only vocabularies that meets these requirements will apear in the list',
    '#type' => 'select',
    '#options' => $options,
    '#default_value' => variable_get('kaltura_mix_admin_tags_voc', ''),
    '#required' => FALSE,
  );
  $form['kaltura_mix_display'] = array(
    '#type' => 'fieldset',
    '#title' => t('Display settings'),
    '#collapsible' => TRUE,
    '#collapsed' => TRUE,
    '#weight' => -2,
  );
  $saved_player = variable_get('kaltura_roughcut_mix_widget', KalturaSettings_DEFAULT_RC_PLAYER_UICONF);
  $players = kaltura_choose_player(0, 'roughcut', 'mix', FALSE, $saved_player);
  $form['kaltura_mix_display']['kaltura_roughcut_mix_widget'] = $players['default_widget'];
  $form['kaltura_mix_display']['kaltura_roughcut_mix_widget']['#default_value'] = $saved_player;
  $form['kaltura_mix_display']['clear_block_item'] = array(
    '#type' => 'item',
    '#value' => '<div class="clear-block"></div>',
  );
  $form['kaltura_mix_display']['kaltura_roughcut_mix_delivery_type'] = array(
    '#type' => 'select',
    '#title' => t('Delivery Type'),
    '#options' => array(
      'HTTP' => 'Progressive Download (HTTP)',
      'RTMP' => 'Adaptive Streaming (RTMP)',
    ),
    '#default_value' => variable_get('kaltura_roughcut_mix_delivery_type', 'HTTP'),
  );
  $form['kaltura_mix_display']['kaltura_mix_width'] = array(
    '#type' => 'textfield',
    '#size' => 5,
    '#title' => t('Player Width (in pixels)'),
    '#default_value' => variable_get('kaltura_mix_width', '410'),
  );
  $form['kaltura_mix_display']['kaltura_mix_height'] = array(
    '#type' => 'textfield',
    '#size' => 5,
    '#title' => t('Player Height (in pixels)'),
    '#default_value' => variable_get('kaltura_mix_height', '364'),
  );
  $form['kaltura_mix_display']['kaltura_mix_thumb_width'] = array(
    '#type' => 'textfield',
    '#size' => 5,
    '#title' => t('Thumbnail Width'),
    '#default_value' => variable_get('kaltura_mix_thumb_width', '120'),
  );
  $form['kaltura_mix_display']['kaltura_mix_thumb_height'] = array(
    '#type' => 'textfield',
    '#size' => 5,
    '#title' => t('Thumbnail Height'),
    '#default_value' => variable_get('kaltura_mix_thumb_height', '90'),
  );
  $form['kaltura_mix_display']['kaltura_display_mix_teaser_with_player'] = array(
    '#type' => 'radios',
    '#title' => t('In Teaser Mode - Display Only Thumbnail'),
    '#options' => array(
      '0' => 'Only thumbnail',
      '1' => 'Thumbnail and player',
    ),
    '#default_value' => variable_get('kaltura_display_mix_teaser_with_player', '0'),
  );
  return system_settings_form($form);
}

/**
 * Implementation of hook_node_info().
 */
function node_kaltura_mix_node_info() {
  $description = t('A Kaltura Media Remix is an intuitive way to create a mashup of rich-media. Similar to the Kaltura Media Node, ' . 'a Remix allows upload and import of rich media, but adds the power of online video editing. Each Media Remix ' . 'encapsulates a "Remix" button linking to a simple to use online video editor that supports trimming videos, transitions, effects, sound-tracks, ' . 'remixing, reordering videos, overlays, and collaborative editing');
  return array(
    'kaltura_mix' => array(
      'name' => t('Kaltura Media Remix'),
      'module' => 'node_kaltura_mix',
      'description' => $description,
    ),
  );
}

/**
 * Implementation of hook_form().
 *
 * Determine how the "add node" form, of mix node, will look like
 *
 * We actually use a 2 steps form, the one for collecting basic data (needed in kaltura's API) about the mix
 * the second step is to call the contibution wizard to add media to the mix.
 *
 * The mix is being created b an API call to kaltura.
 */
function node_kaltura_mix_form(&$node, $form_state) {
  global $user;
  $kaltura_editor_URL = variable_get('kaltura_editor_URL', '') ? variable_get('kaltura_editor_URL', '') : KalturaSettings_SE_URL;
  $kaltura_editor_width = variable_get('kaltura_editor_width', '') ? variable_get('kaltura_editor_width', '') : KalturaSettings_SE_WIDTH;
  $kaltura_editor_height = variable_get('kaltura_editor_height', '') ? variable_get('kaltura_editor_height', '') : KalturaSettings_SE_HEIGHT;
  $type = node_get_types('type', $node);

  // if nid exists, it means we are in edit node mode
  if ($node->nid) {
    $form['title'] = array(
      '#type' => 'textfield',
      '#title' => check_plain($type->title_label),
      '#required' => TRUE,
      '#default_value' => $node->title,
      '#weight' => -5,
    );
    $form['body_filter']['body'] = array(
      '#type' => 'textarea',
      '#title' => check_plain($type->body_label),
      '#default_value' => $node->body,
      '#rows' => 20,
      '#required' => FALSE,
    );

    //NOTE CM: removed this and enabled player's edit button properly.  is this the right workflow, or should we disable kaltura editor on node edit page completely?
    $action_buttons = '<input type="button" value="Edit Mix" onclick=" kalturaInitModalBox(\'' . url($kaltura_editor_URL) . '\' + \'/' . $node->kaltura_entryId . '\' + \'/entry/empty_partner_data/no_refresh\', { width: ' . $kaltura_editor_width . ', height: ' . $kaltura_editor_height . ' });" />';
    $form['edit_mix'] = array(
      '#type' => 'item',
      '#value' => $action_buttons,
    );

    //-----------
    $form['kaltura_tags'] = array(
      '#type' => 'hidden',
      '#title' => 'Kaltura Tags',
      '#required' => FALSE,
      '#default_value' => $node->kaltura_tags,
      '#weight' => -4,
    );
    $form['kaltura_admin_tags'] = array(
      '#type' => 'hidden',
      '#title' => 'Kaltura Admin Tags',
      '#required' => FALSE,
      '#default_value' => $node->kaltura_admin_tags,
      '#weight' => -3,
    );
    $form['kaltura_entryId'] = array(
      '#type' => 'hidden',
      '#default_value' => $node->kaltura_entryId,
    );
    $form['media_preview'] = array(
      '#type' => 'item',
      '#title' => t('Media'),
      '#value' => kaltura_replace_tags(theme('node_kaltura_mix_entryId', $node, 0), false, false, true),
      '#weight' => 0,
    );
    $form['kstatus'] = array(
      '#type' => 'hidden',
      '#default_value' => $node->kstatus,
    );
    $form['kaltura_total_rank'] = array(
      '#type' => 'hidden',
      '#default_value' => $node->kaltura_total_rank,
    );
    $form['kaltura_rank'] = array(
      '#type' => 'hidden',
      '#default_value' => $node->kaltura_rank,
    );
    $form['kaltura_votes'] = array(
      '#type' => 'hidden',
      '#default_value' => $node->kaltura_votes,
    );
    $form['kaltura_plays'] = array(
      '#type' => 'hidden',
      '#default_value' => $node->kaltura_plays,
    );
    $form['kaltura_views'] = array(
      '#type' => 'hidden',
      '#default_value' => $node->kaltura_views,
    );
    $form['kaltura_media_date'] = array(
      '#type' => 'hidden',
      '#default_value' => $node->kaltura_media_date,
    );
    $form['kaltura_download_url'] = array(
      '#type' => 'hidden',
      '#default_value' => $node->kaltura_download_url,
    );
    $form['kaltura_height'] = array(
      '#type' => 'hidden',
      '#default_value' => $node->kaltura_height,
    );
    $form['kaltura_width'] = array(
      '#type' => 'hidden',
      '#default_value' => $node->kaltura_width,
    );
    $form['kaltura_source_link'] = array(
      '#type' => 'hidden',
      '#default_value' => $node->kaltura_source_link,
    );
    $form['kaltura_source_id'] = array(
      '#type' => 'hidden',
      '#default_value' => $node->kaltura_source_id,
    );
    $form['kaltura_source'] = array(
      '#type' => 'hidden',
      '#default_value' => $node->kaltura_source,
    );
    $form['kaltura_partner_data'] = array(
      '#type' => 'hidden',
      '#default_value' => $node->kaltura_partner_data,
    );
    $form['kaltura_thumbnail_url'] = array(
      '#type' => 'hidden',
      '#default_value' => $node->kaltura_thumbnail_url,
    );
    $form['kaltura_duration'] = array(
      '#type' => 'hidden',
      '#default_value' => $node->kaltura_duration,
    );
    $form['kaltura_media_type'] = array(
      '#type' => 'hidden',
      '#default_value' => $node->kaltura_media_type,
    );
  }
  else {
    $form['kaltura_tags'] = array(
      '#type' => 'hidden',
      '#title' => 'Kaltura Tags',
      '#required' => FALSE,
      '#default_value' => $node->kaltura_tags ? $node->kaltura_tags : $_REQUEST['kaltura_tags'],
    );
    $form['kaltura_admin_tags'] = array(
      '#type' => 'hidden',
      '#title' => 'Kaltura Admin Tags',
      '#required' => FALSE,
      '#default_value' => $node->kaltura_admin_tags ? $node->kaltura_admin_tags : $_REQUEST['kaltura_admin_tags'],
    );
    $form['title'] = array(
      '#type' => 'textfield',
      '#title' => check_plain($type->title_label),
      '#required' => TRUE,
      '#default_value' => $node->title ? $node->title : $_REQUEST['title'],
      '#weight' => -5,
    );
    $form['#multistep'] = TRUE;
    $form['#redirect'] = FALSE;
    $form['submit'] = array(
      '#type' => 'submit',
      '#value' => t('Continue'),
      '#weight' => 10,
    );

    // if form state have a continue attribute, it means we are on the
    // second step of the form so we create the mix using kaltura API
    // client, and then we start the contribution wizard to add media
    if ($_REQUEST['title'] && $form_state['storage']['continue']) {
      $partner_data = "user_id@" . $user->uid;
      $kaltura_client = KalturaHelpers::getKalturaClient(true);

      // in order to add admin tags, admin session must be established
      $session_user = KalturaHelpers::getSessionUser();
      if (WORK_WITH_KSHOW) {
        $result = kaltura_add_kshow($session_user, $kaltura_client, $partner_data);
        $partner_data .= "|kshow_exist@yes";
        $show_entry_id = $result['result']['kshow']['id'];
        $cw_vars = kaltura_format_cw_vars(array(
          'kshow_id' => $show_entry_id,
          'partner_data' => $partner_data,
        ));
        $prefix = "<div class=\"add_video_to_node\"><script>jQuery(document).ready(function(){\n             kalturaInitModalBox('" . url("kaltura/contribution_wizard/" . $cw_vars) . "/'+get_title()); \n        });</script>";
        kaltura_create_node_from_kshow($result['result']);
      }
      else {
        $result = kaltura_add_roughcut($session_user, $kaltura_client, $partner_data);
        $partner_data .= "|kshow_exist@yes";
        $show_entry_id = $result->id;
        $cw_vars = kaltura_format_cw_vars(array(
          'kshow_id' => $show_entry_id,
          'partner_data' => $partner_data,
          'type' => 'entry',
          'context' => 'kaltura_mix',
        ));
        $prefix = "<div class=\"add_video_to_node\"><script>jQuery(document).ready(function(){ \n          kalturaInitModalBox('" . url("kaltura/contribution_wizard/" . $cw_vars) . "/'+get_title()); \n        });</script>";

        // $prefix = "<div class=\"add_video_to_node\"><script>jQuery(document).ready(function(){ alert(get_title()); });</script>";
        kaltura_create_node_from_roughcut($result);
      }
      $form["add_kaltura"] = array(
        "#prefix" => $prefix,
        "#type" => "item",
        "#value" => "",
        "#suffix" => "</div>",
      );
    }
  }
  return $form;
}

/*
 * helper function to create a node from a result of addKshow API call
 */
function kaltura_create_node_from_kshow($result) {
  global $user;
  $node->title = $result['kshow']['name'];
  $node->body = $result['kshow']['description'];

  // print_r($notification_data,TRUE).PHP_EOL.print_r($_REQUEST,TRUE);
  $node->type = 'kaltura_mix';
  $node->uid = $user->uid;
  $node->status = 1;
  $node->created = time();
  $node->comment = FALSE;
  $node->changed = time();
  $node->promote = 0;
  $node->sticky = 0;
  kaltura_push_mix_extra_fields($node, $result);
  $node->kstatus = $result['kshow']['status'];
  $node->kaltura_tags = str_replace('a generated show\'', '', $result['kshow']['tags']);
  $node->kaltura_entryId = $result['kshow']['id'];

  //$node->admin_tags = $result['kshow']['admin_tags'];

  // Admin tags are not returned in xml from kaltura, so we take them from $_REQUEST
  $node->kaltura_admin_tags = $_REQUEST['admin_tags'];
  $node->kaltura_entry_data = serialize(array(
    $result,
  ));
  node_save($node);
  module_invoke('node_kaltura_mix', 'hook_insert', $node);
}

/*
 * helper function to create a node from a result of addRoughcutEntry API call
 * TODO
 * CMAC
 * changes
 * changed node value assigns from the old array values to the new class values
 */
function kaltura_create_node_from_roughcut($result, $status = NULL) {
  global $user;
  $node->title = $result->name;
  $node->body = $result->description;

  // print_r($notification_data,TRUE).PHP_EOL.print_r($_REQUEST,TRUE);
  $node->type = 'kaltura_mix';
  $node->uid = $user->uid;
  $node->status = $status ? $status : $_REQUEST['status'];
  $node->created = time();
  $node->comment = $_REQUEST['comment'];
  $node->changed = time();
  $node->promote = $_REQUEST['promote'];
  $node->sticky = $_REQUEST['sticky'];
  kaltura_push_mix_extra_fields($node, $result);
  $node->kstatus = $result->status;
  $node->kaltura_tags = str_replace('a generated show\'', '', $result->tags);
  $node->kaltura_entryId = $result->id;

  // NOTE: Added by CM
  //  $node->kaltura_media_type= $result->type;
  $node->kaltura_media_type = 6;

  //Oferc: In drupal mix is always 6
  $node->kaltura_duration = WORK_WITH_KSHOW ? 'lengthInMsecs' : 'duration';
  $node->kaltura_thumbnail_url = $result->thumbnailUrl;
  $node->hasRealThumbnail = $result->thumbnailUrl;
  $node->kaltura_partner_data = $result->partnerData;
  $node->kaltura_source = '';
  $node->kaltura_source_id = '';
  $node->kaltura_source_link = '';
  $node->kaltura_width = '';
  $node->kaltura_height = '';
  $node->kaltura_download_url = $result->downloadUrl;
  $node->kaltura_media_date = '';
  $node->kaltura_views = $result->views;
  $node->kaltura_plays = $result->plays;
  $node->kaltura_votes = $result->votes;
  $node->kaltura_rank = $result->rank;
  $node->kaltura_total_rank = $result->totalRank;

  // Admin tags are not returned in xml from kaltura, so we take them from $_REQUEST

  //$node->admin_tags = $result['entry']['admin_tags'];
  $node->kaltura_admin_tags = $_REQUEST['admin_tags'];
  $node->kaltura_entry_data = serialize(array(
    $result,
  ));
  node_save($node);
  module_invoke('node_kaltura_mix', 'hook_insert', $node);
  return $node->nid;
}

/*
 * helper function to inject the node with extra data
 * TODO
 * CMAC
 * excluded population of fields in loop, poulated in array definition where possible
 */
function kaltura_push_mix_extra_fields(&$node, $result) {
  $fields = array(
    // node key => result key
    'kaltura_media_type' => 'mediaType',
    'kaltura_duration' => WORK_WITH_KSHOW ? 'lengthInMsecs' : 'duration',
    'kaltura_thumbnail_url' => $result->thumbnailUrl,
    'kaltura_partner_data' => $result->partnerData,
    'kaltura_source' => '',
    'kaltura_source_id' => '',
    'kaltura_source_link' => '',
    'kaltura_width' => '',
    'kaltura_height' => '',
    'kaltura_download_url' => $result->downloadUrl,
    'kaltura_media_date' => '',
    'kaltura_views' => $result->views,
    'kaltura_plays' => $result->plays,
    'kaltura_votes' => $result->votes,
    'kaltura_rank' => $result->rank,
    'kaltura_total_rank' => $result->totalRank,
  );

  /*  foreach ($fields as $node_key => $result_key) {
      if ($result_key != '') {
        if ($result['entry'][$result_key]) {
          $node->$node_key = $result['entry'][$result_key];
        }
      }
    }*/
}

/*
 * helper function to call the addKshow service, providing the data
 * the user has submitted in the first step of the form
 */
function kaltura_add_kshow($session_user, $kaltura_client, $partner_data) {
  $kshow = new kalturaKshow();
  $kshow->name = $_REQUEST['title'];
  $kshow->tags = $_REQUEST['kaltura_tags'];
  $kshow->admin_tags = $_REQUEST['kaltura_admin_tags'];
  $kshow->partnerData = $partner_data;
  $result = $kaltura_client
    ->addKShow($session_user, $kshow, 1);
  return $result;
}

/*
 * helper function to call the addRoughcutEntry service, providing the
 * data the user has submitted in the first step of the form
 */
function kaltura_add_roughcut($session_user, $kaltura_client) {
  $rc = new KalturaMixEntry();
  $rc->name = $_REQUEST['title'];
  $rc->userId = $session_user->screenName;
  $rc->type = ENTRY_TYPE_ROUGHCUT;
  $rc->tags = $_REQUEST['kaltura_tags'];
  $rc->adminTags = $_REQUEST['kaltura_admin_tags'];
  $rc->partnerId = variable_get('kaltura_partner_id', '');
  $rc->editorType = KalturaEditorType::SIMPLE;
  $result = $kaltura_client->mixing
    ->add($rc);
  return $result;
}

/**
 *
 * CM TO DO: Document this
 *
 *
 */
function kaltura_clone_mix_confirm(&$form_state) {
  $entry_id = arg(2);
  $content_type = arg(3);
  $content_type = isset($content_type) ? $content_type : 'kaltura_mix';
  $entry_metadata = kaltura_get_metadata_for_mix($entry_id);
  $entry_thumb = $entry_metadata->kaltura_thumbnail_url;
  $form['preview'] = array(
    '#value' => '<br /><img src=' . $entry_thumb . '><br />',
  );
  $form['entry_id'] = array(
    '#type' => 'value',
    '#value' => $entry_id,
  );
  $form['content_type'] = array(
    '#type' => 'value',
    '#value' => $content_type,
  );
  return confirm_form($form, "Would you like to create a new remix based on this content?", referer_uri(), "", "Yes, create a new remix", "No, thank you.");
}
function kaltura_clone_mix_confirm_submit($form, &$form_state) {
  drupal_goto('kaltura/clone/' . $form_state['values']['entry_id'] . '/' . $form_state['values']['content_type']);
}
function kaltura_clone_mix() {
  $op = arg(2);
  $content_type = arg(3);
  $entry_id = arg(2);
  $confirm = arg(4);

  //If we are asking for confirmation from the user....
  if (isset($confirm) && $confirm == 'confirm' && isset($entry_id) && $entry_id != '') {
    return drupal_get_form('kaltura_clone_mix_confirm');
  }
  else {
    if ((!isset($confirm) || $confirm === '') && user_access('clone kaltura mixes')) {
      $kaltura_client = KalturaHelpers::getKalturaClient();
      $session_user = KalturaHelpers::getSessionUser();
      if (!$kaltura_client) {
        drupal_set_message('Failed to start Kaltura session. Please check your settings.', 'warning');
        echo theme_kaltura_maintenance_page("<br /><a href=\"#\" onclick=\"window.top.kalturaCloseModalBox()\">Close</a>", TRUE);
        exit;
      }

      // create roughcut at this point by API call,
      $rc = new KalturaMixEntry();
      $rc->name = $title;
      $session_user = KalturaHelpers::getSessionUser();
      $result = $kaltura_client->mixing
        ->cloneAction($entry_id);
      if ($content_type == 'kaltura_mix' || !isset($content_type)) {
        $nid = kaltura_create_node_from_roughcut($result);
        drupal_goto('node/' . $nid . '/edit');
      }
      else {
        $cloned_entry_id = $result->id;
        $content_type_url = str_replace('_', '-', $content_type);
        drupal_goto('node/add/' . $content_type_url . '/' . $cloned_entry_id);
      }
    }
    else {
      drupal_set_message('You do not have access to remix this content.', 'error');
      drupal_goto('');
    }
  }
}

/**
 * Implementation of hook_form_alter().
 *
 * change the node's add/edit form
 * 
 * In add mode, we want to hide some fields and settings that are not
 * relevant to that mode or can't be gathered at this point
 *
 * In edit mode we do not change the form
 */
function node_kaltura_mix_form_alter(&$form, &$form_state, $form_id) {
  if (!empty($_REQUEST["entries"]) && $form_id == 'kaltura_mix_node_form' && !empty($form['kaltura_entryId']['#default_value'])) {
    $arrEntries = explode(',', $_REQUEST['entries']);
    $kaltura_client = KalturaHelpers::getKalturaClient($admin);
    foreach ($arrEntries as $index => $entryId) {
      if (!empty($entryId)) {
        $kaltura_client->mixing
          ->appendMediaEntry($form['kaltura_entryId']['#default_value'], $entryId);
      }
    }
  }
  if ($form_id == 'kaltura_mix_node_form' && !$form['nid']['#value']) {
    if (isset($form["type"]) && $form["type"]["#value"] . "_node_form" == $form_id) {
      unset($form['buttons']['submit']);
      unset($form['buttons']['preview']);
      unset($form['menu']);
      unset($form["log"]);
      unset($form["author"]);
      unset($form["taxonomy"]);
      unset($form["revision_information"]);

      //unset($form['comment_settings']);

      //unset($form['attachments']);

      //unset($form["body_filter"]["kaltura"]);

      //unset($form["options"]);
      $form_state['storage']['continue'] = TRUE;

      /*$form['buttons']['continue'] = array(
          "#type" => "button",
          "#value" => "Continue",
          "#weight" => 40
        );*/
    }
  }
}

/*
 * Implementation of hook_theme().
 */
function node_kaltura_mix_theme() {
  $themes = array(
    'node_kaltura_mix_tags' => array(
      'arguments' => array(
        'element' => NULL,
      ),
    ),
    'node_kaltura_mix_admin_tags' => array(
      'arguments' => array(
        'themeParams' => NULL,
      ),
    ),
    'node_kaltura_mix_entryId' => array(
      'arguments' => array(
        'themeParams' => NULL,
      ),
    ),
    'node_kaltura_mix_thumbnail_url' => array(
      'arguments' => array(
        'themeParams' => NULL,
        'teaser' => NULL,
      ),
    ),
  );
  return $themes;
}

/**
 * Implementation of hook_insert().
 */
function node_kaltura_mix_insert(&$node) {
  $sql = 'INSERT INTO {node_kaltura} (vid, nid, kaltura_entryId, kaltura_tags, kaltura_admin_tags, kstatus, kaltura_media_type, kaltura_duration, ' . 'kaltura_thumbnail_url, kaltura_partner_data, kaltura_source, kaltura_source_id, kaltura_source_link, kaltura_width, kaltura_height, ' . 'kaltura_download_url, kaltura_media_date, kaltura_views, kaltura_plays, kaltura_votes, kaltura_rank, kaltura_total_rank, kaltura_entry_data)' . ' VALUES (%d, %d, \'%s\', \'%s\', \'%s\', %d, %d, %d, \'%s\', \'%s\', %d, %d, \'%s\', %d, %d, \'%s\', \'%s\', %d, %d, %d, %d, %d, \'%s\')';
  db_query($sql, $node->vid, $node->nid, $node->kaltura_entryId, $node->kaltura_tags, $node->kaltura_admin_tags, $node->kstatus, $node->kaltura_media_type, $node->kaltura_duration, $node->kaltura_thumbnail_url, $node->kaltura_partner_data, $node->kaltura_source, $node->kaltura_source_id, $node->kaltura_source_link, $node->kaltura_width, $node->kaltura_height, $node->kaltura_download_url, $node->kaltura_media_date, $node->kaltura_views, $node->kaltura_plays, $node->kaltura_votes, $node->kaltura_rank, $node->kaltura_total_rank, $node->kaltura_entry_data);
  kaltura_update_mix_node_taxonomy($node);
}

/*
 * helper function to inject tags and admin tags into the corresponding taxonomy vocabularies (if any)
 */
function kaltura_update_mix_node_taxonomy(&$node) {
  $voc_id = variable_get('kaltura_mix_tags_voc', '');
  $avoc_id = variable_get('kaltura_mix_admin_tags_voc', '');
  $terms['tags'] = array();
  if ($voc_id) {
    watchdog('mix tags', print_r($node->kaltura_tags, TRUE));
    $terms['tags'][$voc_id] = $node->kaltura_tags;
  }
  if ($avoc_id) {
    if ($avoc_id == $voc_id) {
      $terms['tags'][$admin_voc_id] .= ',' . $node->kaltura_admin_tags;
    }
    else {
      $terms['tags'][$admin_voc_id] = $node->kaltura_admin_tags;
    }
  }
  $node->taxonomy = $terms;
  taxonomy_node_save($node, $terms);
}

/**
 * Implementation of hook_update().
 */
function node_kaltura_mix_update($node) {

  // if this is a new node or we're adding a new revision,
  if ($node->revision) {
    node_example_insert($node);
  }
  else {
    if ($node->notification_update !== TRUE) {
      kaltura_update_mix_tags_from_taxonomy($node);
    }
    $sql = 'UPDATE {node_kaltura} SET kaltura_tags = \'%s\', kaltura_admin_tags = \'%s\' WHERE vid = %d';
    db_query($sql, $node->kaltura_tags, $node->kaltura_admin_tags, $node->vid);
    watchdog('upd mix', $node->kaltura_tags);
    if ($node->notification_update !== TRUE) {
      kaltura_update_mix_tags($node->kaltura_entryId, $node->title, $node->body, $node->kaltura_tags, $node->kaltura_admin_tags);
    }
    else {
      watchdog('mix update', 'updating taxonomy from tags ' . $node->kaltura_tags);
      kaltura_update_mix_node_taxonomy($node);
    }
  }
}

/**
 * Implementation of hook_validate().
 *
 * We don't do entryId validation against Kaltura server if:
 * (0) we're creating the node (it won't exist remotely yet)
 * (1) this update is an update_notification from Kaltura anyway
 * (2) we're deleting the node
 */
function node_kaltura_mix_validate($node, &$form) {
  if (!empty($node->nid) && $node->notification_update !== TRUE && $form['#post']['op'] != t('Delete')) {
    try {
      $entry = kaltura_get_entry($form['kaltura_entryId']['#value']);
    } catch (Exception $ex) {
      watchdog('node_kaltura_mix', t('Kaltura Exception: %message, backtrace: <pre>!trace</pre>'), array(
        '%message' => $ex
          ->getMessage(),
        '!trace' => $ex
          ->getTrace(),
      ));
      switch ($ex
        ->getCode()) {
        case 'ENTRY_ID_NOT_FOUND':
          form_set_error('kaltura_entryId', t('Entry not found on Kaltura server: @message', array(
            '@message' => $ex
              ->getMessage(),
          )));
          break;
        default:
          form_set_error('kaltura_entryId', t('Kaltura client exception: @message', array(
            '@message' => $ex
              ->getMessage(),
          )));
      }
    }
  }
}

/**
 * helper function that takes the node's taxonomy tags
 * and pushes them into the kaltura tags fields
 */
function kaltura_update_mix_tags_from_taxonomy(&$node) {
  $voc = variable_get('kaltura_mix_tags_voc', '');

  //echo $voc;
  if ($voc != '') {
    $tags = $node->taxonomy['tags'][$voc];

    //    $node->kaltura_tags .= " " . $tags;
    $node->kaltura_tags = $tags;
  }
  $voc = variable_get('kaltura_mix_admin_tags_voc', '');
  if ($voc != '') {
    $tags = $node->taxonomy['tags'][$voc];
    $node->kaltura_admin_tags = $tags;
  }
}

/*
 * Implementation of hook_delete().
 */
function node_kaltura_mix_delete($node) {
  $del_sql = 'DELETE FROM {node_kaltura} WHERE nid = %d';
  db_query($del_sql, $node->nid);
}

/**
 * Implementation of hook_load().
 */
function node_kaltura_mix_load($node) {
  $sql = 'SELECT kaltura_entryId, kaltura_tags, kaltura_admin_tags, kstatus, kaltura_media_type, kaltura_duration, kaltura_thumbnail_url, ' . 'kaltura_partner_data, kaltura_source, kaltura_source_id, kaltura_source_link, kaltura_width, kaltura_height, kaltura_download_url, kaltura_media_date, ' . 'kaltura_views, kaltura_plays, kaltura_votes, kaltura_rank, kaltura_total_rank, kaltura_entry_data FROM {node_kaltura} WHERE vid = %d';
  $result = db_query($sql, $node->vid);
  $additions = db_fetch_object($result);
  return $additions;
}

/**
 * Implementation of hook_view().
 */
function node_kaltura_mix_view($node, $teaser = FALSE, $page = FALSE) {
  $node = node_prepare($node, $teaser);
  $node->content['kaltura_tags'] = array(
    '#value' => theme('node_kaltura_mix_tags', $node),
    '#weight' => 1,
  );
  $node->content['kaltura_admin_tags'] = array(
    '#value' => theme('node_kaltura_mix_admin_tags', $node),
    '#weight' => 6,
  );

  // in KShow - entryId = kshowId
  if ($node->kaltura_entryId) {
    $node->content['kaltura_entry'] = array(
      '#value' => theme('node_kaltura_mix_entryId', $node, $teaser),
      '#weight' => 7,
    );
  }

  //remove this condition if you wan the thumbnaill to show on the video page
  if ($teaser == 1) {
    $node->content['kaltura_thumbnail_url'] = array(
      '#value' => theme('node_kaltura_mix_thumbnail_url', $node, $teaser),
      '#weight' => 0,
    );
  }
  return $node;
}

/*
 * theme function to render the entryId field into HTML
 *
 * the returned value is a normal string with a specific structure
 * this "tag" is being later replaced using nodeAPI to the kaltura embed tags
 */
function theme_node_kaltura_mix_entryId($node, $teaser) {
  $width = variable_get('kaltura_mix_width', '410');
  $height = variable_get('kaltura_mix_height', '364');
  if ($teaser && variable_get('kaltura_display_mix_teaser_with_player', 0) == 0) {
    return '';
  }
  if (WORK_WITH_KSHOW) {
    return '[kaltura-widget kid="' . $node->kaltura_entryId . '" size="large"  width="' . $width . '" height="' . $height . '" /]';
  }
  else {
    return '[kaltura-widget mix="' . $node->kaltura_entryId . '" size="large"  width="' . $width . '" height="' . $height . '" /]';
  }
}

/*
 * function to render the thumbnail_url field into HTML
 */
function theme_node_kaltura_mix_thumbnail_url($node, $teaser, $nosize = FALSE, $size = array()) {
  if (isset($size['width']) && isset($size['height'])) {
    $width = $size['width'];
    $height = $size['height'];
  }
  else {
    $width = variable_get('kaltura_mix_thumb_width', '120');
    $height = variable_get('kaltura_mix_thumb_height', '90');
  }
  $size_str = '';
  if ($nosize == FALSE) {
    $size_str = '/width/' . $width . '/height/' . $height;
  }
  if ($node->link_thumb || $teaser) {
    if (!empty($node->kaltura_thumbnail_url)) {
      return '<div class="kaltura_thumb">' . l(theme('image', $node->kaltura_thumbnail_url . $size_str, '', '', $img_attr, FALSE), 'node/' . $node->nid, array(
        'html' => TRUE,
      )) . '</div>';
    }
  }
  else {
    if (!empty($node->kaltura_thumbnail_url)) {
      return '<div class="kaltura_thumb">' . theme('image', $node->kaltura_thumbnail_url . $size_str, '', '', $img_attr, FALSE) . '</div>';
    }
  }
}

/*
 * theme function to render the admin tags field into HTML
 *
 * function can be overridden in template.php file
 */
function theme_node_kaltura_mix_admin_tags($node) {
  if ($node->kaltura_admin_tags) {
    $admin_tags = "<div class=\"kaltura_admin_tags\"><label class=\"field_title\">" . t('Kaltura Admin Tags') . ": </label>" . check_plain($node->kaltura_admin_tags) . '</div>';
  }
  return $admin_tags;
}

/*
 * theme function to render the tags field into HTML
 * 
 * function can be overridden in template.php file
 */
function theme_node_kaltura_mix_tags($node) {
  if ($node->kaltura_tags) {
    $tags = "<div class=\"kaltura_tags\"><label class=\"field_title\">" . t('Kaltura Tags') . ": </label>" . check_plain($node->kaltura_tags) . '</div>';
  }
  return $tags;
}

/*
 * This function calls Kaltura API to update metadata of a mix in the kaltura DB
 * TODO
 * CMAC
 * changes
 * entry type to KalturaMediaEntry
 * api call changed to new version
 * questions
 * ignored the WORK_WITH_KSHOW section
 */
function kaltura_update_mix_tags($eid, $name, $body, $tags, $admin_tags) {
  $admin = 0;
  $need_admin = 1;

  //who should init this? Anyway since we update admin_tags the answer is yes we need
  if ($need_admin) {
    $admin = 1;
  }
  $kaltura_client = KalturaHelpers::getKalturaClient($admin);
  $session_user = KalturaHelpers::getSessionUser();
  if (WORK_WITH_KSHOW) {

    // update kshow
    $kshow = new KalturaKShow();
    $kshow->tags = $tags;
    $kshow->admin_tags = $admin_tags;
    $kshow->name = $name;
    $kshow->description = $body;
    $result = $kaltura_client
      ->updateKShow($session_user, $eid, $kshow, 1);
  }
  else {

    // update entry
    $entry = new KalturaMixEntry();
    $entry->tags = $tags;
    $entry->admin_tags = $admin_tags;
    $entry->name = $name;
    $entry->description = $body;
    $result = $kaltura_client->mixing
      ->update($eid, $entry);
  }

  // If we want to collect more data, we can call this function with 3rd parameter FALSE:
  kaltura_add_result_to_entry_data($eid, $result);
}

Functions

Name	Description
kaltura_add_kshow
kaltura_add_roughcut
kaltura_clone_mix
kaltura_clone_mix_confirm	CM TO DO: Document this
kaltura_clone_mix_confirm_submit
kaltura_create_node_from_kshow
kaltura_create_node_from_roughcut
kaltura_mix_settings_form
kaltura_push_mix_extra_fields
kaltura_update_mix_node_taxonomy
kaltura_update_mix_tags
kaltura_update_mix_tags_from_taxonomy	helper function that takes the node's taxonomy tags and pushes them into the kaltura tags fields
node_kaltura_mix_access
node_kaltura_mix_delete
node_kaltura_mix_form	Implementation of hook_form().
node_kaltura_mix_form_alter	Implementation of hook_form_alter().
node_kaltura_mix_insert	Implementation of hook_insert().
node_kaltura_mix_load	Implementation of hook_load().
node_kaltura_mix_menu	Implementation of hook_menu().
node_kaltura_mix_node_info	Implementation of hook_node_info().
node_kaltura_mix_perm
node_kaltura_mix_theme
node_kaltura_mix_update	Implementation of hook_update().
node_kaltura_mix_validate	Implementation of hook_validate().
node_kaltura_mix_view	Implementation of hook_view().
theme_node_kaltura_mix_admin_tags
theme_node_kaltura_mix_entryId
theme_node_kaltura_mix_tags
theme_node_kaltura_mix_thumbnail_url