asset_panels.module in Asset 5

File

asset_panels/asset_panels.module

<?php

/**
 * Callback function to supply a list of content types.
 */
function asset_panels_panels_content_types() {
  $items['gallery'] = array(
    'callback' => 'asset_panels_content_gallery',
    'admin' => 'asset_panels_admin_gallery',
  );
  return $items;
}

/**
 * Output function for the 'node' content type. Outputs a node
 * based on the module and delta supplied in the configuration.
 */
function asset_panels_content_gallery($conf, $more_link = "") {
  $node = node_load($conf['nid']);
  if (function_exists('i18n_get_lang')) {
    $lang = i18n_get_lang();
    if ($node->language != $lang && isset($node->translation[$lang]->nid)) {
      $node = node_load($node->translation[$lang]->nid);
    }
  }
  if (!node_access('view', $node)) {
    return;
  }
  $is_audio = array(
    'mp3',
    'wma',
    'wav',
    'ogg',
    'm4a',
    'aac',
  );
  $count = 0;
  $assets = array();

  // 1. Build an array of all non-audio assets
  foreach ($node as $fieldname => $value) {
    if (substr($fieldname, 0, 6) == "field_") {

      // For each cck field, check if it's an asset field
      $fields = content_fields($fieldname, $node->type);
      if ($fields['type'] == "asset") {
        foreach ($node->{$fieldname} as $asset) {

          // Add the html code for the preview
          if (!empty($asset['aid'])) {
            $a = asset_load(array(
              'aid' => $asset['aid'],
            ));
            if (!in_array($a->extension, $is_audio)) {
              $assets[] = array(
                'aid' => $asset['aid'],
                'caption' => $asset['caption'],
                'copyright' => $asset['copyright'],
              );
            }
          }
        }
      }
    }
  }

  // 2. Make some calculations (how many pages we have for instance)
  $amount_of_assets = count($assets);
  if ($conf['asset_amount'] < $amount_of_assets) {
    $amount_of_assets = $conf['asset_amount'];
  }
  $amount_of_assets_per_page = $conf['asset_amount_per_page'];
  if ($amount_of_assets > $amount_of_assets_per_page) {

    // There are more assets than we are allow to show on one page
    $amount_of_pages = round($amount_of_assets / $amount_of_assets_per_page);
  }
  else {

    // There are less assets than we are allow to show on one page, so we display them all
    $amount_of_pages = 0;
  }

  // 3. Display $conf['asset_amount'] of assets, depending on which page you're at
  $page_this = $_GET['page'] ? $_GET['page'] : 1;
  $page_prev = $page_this - 1;
  $page_next = $page_this + 1;
  $range_from = 0;
  if (!$amount_of_pages) {
    $range_from = 0;
    $range_to = $amount_of_assets - 1;
  }
  else {
    $range_from = $page_prev * $amount_of_assets_per_page;
    $range_to = $range_from + $amount_of_assets_per_page - 1;
  }
  $output = "<div class='asset-gallery'>";
  foreach (range($range_from, $range_to) as $range) {
    if ($assets[$range]) {
      $output .= "<div class='asset-gallery-item-wrapper'><div class='asset-gallery-item'>";
      $asset = array(
        $assets[$range],
      );
      $output .= asset_lightbox($asset);
      $output .= "</div></div>";
    }
  }
  if ($more_link) {
    $output .= "<div class='asset-gallery-more read-more'>" . l(t("More"), $more_link) . "</div>";
  }
  $output .= '</div>';

  // 4. Generate the pager
  if ($amount_of_pages) {
    $output .= '<div class="pager">';
    if ($_GET['page'] && $_GET['page'] != 1) {
      $output .= '
        <a href="/' . $_GET['q'] . '" class="pager-first active">&laquo; ' . t('first') . '</a>
        <a href="/' . $_GET['q'] . '?page=' . $page_prev . '" class="pager-previous active">&lsaquo; ' . t('previous') . '</a>';
    }
    $output .= '<span class="pager-list">' . t('Page');
    foreach (range(1, $amount_of_pages) as $range) {
      if ($range != $page_this) {
        $output .= '<a href="/' . $_GET['q'] . '?page=' . $range . '" class="pager-last active">' . $range . '</a>';
      }
      else {
        $output .= '<strong class="pager-current">' . $range . '</strong>';
      }
    }
    $output .= '</span>';
    if ($_GET['page'] < $amount_of_pages) {
      $output .= '
        <a href="/' . $_GET['q'] . '?page=' . $page_next . '" class="pager-last active">' . t('next') . ' &rsaquo;</a>
        <a href="/' . $_GET['q'] . '?page=' . $amount_of_pages . '" class="pager-last active">' . t('last') . ' &raquo;</a>';
    }
    $output .= '</div><span class="clear"></span>';
  }

  // 5. Display it all
  return $output;
}

/** 
 * Callback to perform administrative functions on the content block
 */
function asset_panels_admin_gallery($op, &$arg, $arg2 = NULL) {
  switch ($op) {
    case 'list':
      $conf = $arg;
      $node = node_load($conf['nid']);
      return '<strong>Node</strong>: ' . check_plain($node->title);
    case 'add button':
      $form['nid'] = array(
        '#title' => t('Enter the title or NID of a post to gallerize its assets'),
        '#type' => 'textfield',
        '#maxlength' => 512,
        '#autocomplete_path' => 'panels/node/autocomplete',
        '#weight' => -10,
      );
      $form['submit'] = array(
        '#type' => 'button',
        '#value' => t('Add asset gallery'),
      );
      $form['#prefix'] = '<div class="container-inline">';
      $form['#suffix'] = '</div>';
      return $form;
    case 'add':
      if ($_POST['op'] != t('Add asset gallery')) {
        return;
      }
      $form =& $arg;
      if (is_numeric($form['nid'])) {
        $conf = array();
        $conf['nid'] = $form['nid'];
      }
      else {
        $conf = db_fetch_array(db_query(db_rewrite_sql("SELECT n.nid FROM {node} n WHERE LOWER(title) = LOWER('%s')"), $form['nid']));
        if (!$conf['nid']) {
          drupal_set_message(t('Unable to find "%s"', array(
            '%s' => check_plain($form['nid']),
          )));
          return;
        }
      }

      // default to just teaser
      $conf['teaser'] = TRUE;
      return $conf;
    case 'edit':
      $conf =& $arg;
      $node = node_load($conf['nid']);
      $form['nid'] = array(
        '#type' => 'hidden',
        '#default_value' => $conf['nid'],
      );
      $form['asset_amount'] = array(
        '#type' => 'textfield',
        '#size' => 4,
        '#default_value' => $conf['asset_amount'] ? $conf['asset_amount'] : "2",
        '#title' => t('Amount of assets'),
        '#description' => t('How many assets should be displayed?'),
        '#required' => TRUE,
      );
      $form['asset_amount_per_page'] = array(
        '#type' => 'textfield',
        '#size' => 4,
        '#default_value' => $conf['asset_amount_per_page'] ? $conf['asset_amount_per_page'] : "4",
        '#title' => t('Amount of assets per page'),
        '#description' => t('How many assets should be displayed per page?'),
        '#required' => TRUE,
      );
      $form['create_block'] = array(
        '#type' => 'checkbox',
        '#default_value' => $conf['create_block'],
        '#title' => t('Create a block from this gallery?'),
      );
      $form['view_node'] = array(
        '#value' => t('<a href="@asset-gallery">View the original asset node</a>', array(
          '@asset-gallery' => url("node/" . $node->nid),
        )),
      );
      return $form;
    case 'validate':
      $form =& $arg;
      if (!is_numeric($form['asset_amount'])) {
        form_set_error('asset_amount', t('Amount should be a number.'));
      }
      elseif ($form['asset_amount'] <= 0) {
        form_set_error('asset_amount', t('Amount should be at least 1.'));
      }
      return;
    case 'save':

      // For this one, the form values go directly into the config.
      $form =& $arg;
      return $form;
  }
}

Functions

Name	Description
asset_panels_admin_gallery	Callback to perform administrative functions on the content block
asset_panels_content_gallery	Output function for the 'node' content type. Outputs a node based on the module and delta supplied in the configuration.
asset_panels_panels_content_types	Callback function to supply a list of content types.