Club Drupal

<?php

/**

 * @file

 * Contain the integration with views

 * A handler to provide a field that is completely custom by the administrator.

 *

 * @ingroup views_field_handlers

 */

class lightbox2_handler_field_lightbox2 extends views_handler_field {

  function query() {

    // Do nothing, as this handler does not need to do anything to the query itself.

  }

  function option_definition() {

    $options = parent::option_definition();

    $options['trigger_field'] = array('default' => '');

    $options['popup'] = array('default' => '');

    $options['caption'] = array('default' => '');

    $options['rel_group'] = array('default' => TRUE);

    $options['custom_group'] = array('default' => '');

    $options['height'] = array('default' => '400px');

    $options['width'] = array('default' => '600px');

    return $options;

  }

  function options_form(&$form, &$form_state) {

    parent::options_form($form, $form_state);

    $fields = array('trigger_field' => t('<None>'));

    foreach ($this->view->display_handler->get_handlers('field') as $field => $handler) {

      // We only use fields up to this one.  Obviously we can't use this handler

      // as the trigger handler.

      if ($field == $this->options['id']) {

        break;

      }

      $fields[$field] = $handler->definition['title'];

    }

    $form['trigger_field'] = array(

      '#type' => 'select',

      '#title' => t('Trigger field'),

      '#description' => t('Select the field that should be turned into the trigger for the lightbox.  Only fields that appear before this one in the field list may be used.'),

      '#options' => $fields,

      '#default_value' => $this->options['trigger_field'],

      '#weight' => -12,

    );

    $form['popup'] = array(

      '#type' => 'textarea',

      '#title' => t('Popup'),

      '#description' => t('Combine tokens from the "Replacement patterns" below and html to create what the lightbox popup will become.'),

      '#default_value' => $this->options['popup'],

      '#weight' => -11,

    );

    $form['caption'] = array(

      '#type' => 'textfield',

      '#title' => t('Caption'),

      '#description' => t('Combine tokens from the "Replacement patterns" below and html to create the caption shown under the lightbox. Leave empty for no caption.'),

      '#default_value' => $this->options['caption'],

      '#weight' => -10,

    );

    $form['rel_group'] = array(

      '#type' => 'checkbox',

      '#title' => t('Automatic generated Lightbox group'),

      '#description' => t('Enable Lightbox grouping using a generated group name for this view.'),

      '#default_value' => $this->options['rel_group'],

      '#weight' => -9,

    );

    $form['custom_group'] = array(

      '#type' => 'textfield',

      '#title' => t('Custom Lightbox group'),

      '#description' => t('Enable Lightbox grouping with a given string as group. Overrides the automatically generated group name above.'),

      '#default_value' => $this->options['custom_group'],

      '#weight' => -8,

    );

    $form['height'] = array(

      '#type' => 'textfield',

      '#title' => t('Height'),

      '#description' => t('Specify the height of the lightbox2 popup window.  Because the content is dynamic, we cannot detect this value automatically.'),

      '#default_value' => $this->options['height'],

      '#weight' => -7,

    );

    $form['width'] = array(

      '#type' => 'textfield',

      '#title' => t('Width'),

      '#description' => t('Specify the width of the lightbox2 popup window.  Because the content is dynamic, we cannot detect this value automatically.'),

      '#default_value' => $this->options['width'],

      '#weight' => -6,

    );

    // Remove the checkboxs and other irrelevant controls.

    unset($form['alter']['alter_text']);

    unset($form['alter']['make_link']);

    unset($form['alter']['text']);

    unset($form['alter']['path']);

    unset($form['alter']['alt']);

    unset($form['alter']['prefix']);

    unset($form['alter']['suffix']);

    unset($form['alter']['text']['#dependency']);

    unset($form['alter']['text']['#process']);

  }

  /**

   * Render the trigger field and its linked popup information.

   */

  function render($values) {

    // We need to have multiple unique IDs, one for each record.

    static $i = 0;

    static $link;

    if (!empty($this->options['trigger_field'])) {

      // We don't actually use the link, but we need it there for lightbox to function.

      if (empty($link)) {

        // Get the path name.

        $path = isset($_GET['q']) ? $_GET['q'] : '<front>';

        $link = url($path, array('absolute' => TRUE));

      }

      // Get the token information and generate the value for the popup and the

      // caption.

      $tokens = $this->get_render_tokens($this->options['alter']);

      $popup = filter_xss_admin($this->options['popup']);

      $caption = filter_xss_admin($this->options['caption']);

      $popup = strtr($popup, $tokens);

      $caption = strtr($caption, $tokens);

      $i++;

      // The outside div is there to hide all of the divs because if the specific lightbox

      // div is hidden it won't show up as a lightbox.  We also specify a group

      // in the rel attribute in order to link the whole View together for paging.

      $group_name = !empty($this->options['custom_group']) ? $this->options['custom_group'] : ($this->options['rel_group'] ? 'lightbox-popup-' . $this->view->name . '-' . implode('/', $this->view->args) : '');

      return "<a href='$link #lightbox-popup-{$i}'  rel='lightmodal[{$group_name}|width:" . ($this->options['width'] ? $this->options['width'] : '600px') . ';height:' . ($this->options['height'] ? $this->options['height'] : '600px') . "][" . $caption . "]'>" . $tokens["[{$this->options['trigger_field']}]"] . "</a>

                <div style='display: none;'><div id='lightbox-popup-{$i}' class='lightbox-popup'>$popup</div></div>";

    }

    else {

      return;

    }

  }

}