<?php
// $Id: views_slideshow_ddblock.module,v 1.2 2010/03/21 09:24:07 ppblaauw Exp $

/**
 *  @file
 *  Views Slideshow: ddblock adds ddblock functionality to Views Slideshows.
 *
 */

/**
 *  Implements hook_init().
 */
function views_slideshow_ddblock_init() {
  // add views_slideshow_ddblock.admin. js file
  drupal_add_js(drupal_get_path('module', 'views_slideshow_ddblock') . '/js/views_slideshow_ddblock.admin.js');
}

/**
 *  Implements hook_theme().
 */
function views_slideshow_ddblock_theme($existing, $type, $theme, $path) {
  return array(
    'views_slideshow_ddblock' => array(
      'arguments' => array('view' => NULL,
                           'options' => array(),
                           'rows' => array(),
                           'title' => ''
      ),
      'template' => 'views-slideshow-ddblock',
    ),
    'views_slideshow_ddblock_pager_content' => array(
      'arguments' => array(
        'views_slideshow_ddblock_pager_settings' => NULL,
        'views_slideshow_ddblock_content' => NULL,
      ),
      'template' => 'views-slideshow-ddblock-pager-content',
    ),
  );
}

/**
 * Show debug information for content preprocess function helper function
 *
 * @param $vars             - An array of variables to pass to the theme template.
 */
function views_slideshow_ddblock_show_content_debug_info($vars) {
  $settings = $vars['views_slideshow_ddblock_slider_settings'];
  switch ($settings['debug_info']) {
    case 'devel':
      dpm($settings['view_name'], t('View - name'));
      dpm($settings['view_display_id'], t('View - display_id'));
      dpm(count($vars['views_slideshow_ddblock_content']), t('Number of slides'));
      dpm($settings['imgcache_slide'], t('Imgcache_slide'));
      drupal_set_message('<pre>' . t('Content first slide:') . '</pre>');
      dvm($vars['views_slideshow_ddblock_content'][0], t('Content first slide'));
      break;
    case 'drupal':
      drupal_set_message('<pre>' . t('View - name =>') . ' ' . var_export($settings['view_name'], TRUE) . '</pre>');
      drupal_set_message('<pre>' . t('View - display_Id =>') . ' ' . var_export($settings['view_display_id'], TRUE) . '</pre>');
      drupal_set_message('<pre>' . t('Number of slides =>') . ' ' . count($vars['views_slideshow_ddblock_content']) .'</pre>');
      drupal_set_message('<pre>' . t('Imgcache_slide =>') . ' ' . var_export($settings['imgcache_slide'], TRUE) .'</pre>');
      drupal_set_message('<pre>' . t('Content first slide =>') . ' ' . var_export($vars['views_slideshow_ddblock_content'][0], TRUE) . '</pre>');
      break;
    case 'none':
    break;
  }
}

/**
 * Show debug information for pager preprocess function helper function
 *
 * @param $vars             - An array of variables to pass to the theme template.
 */
function views_slideshow_ddblock_show_pager_debug_info($vars) {
  $settings = $vars['views_slideshow_ddblock_pager_settings'];
  switch ($settings['debug_info']) {
    case 'devel':
      drupal_set_message('<pre>' . t('Pager Settings:') . ' '. '</pre>');
      dpm($vars['views_slideshow_ddblock_pager_settings'], t('Pager Settings'));
      break;
    case 'drupal':
      drupal_set_message('<pre>' . t('Pager Settings =>') . ' ' . var_export($settings, TRUE) . '</pre>');
      break;
    case 'none':
      break;
  }
}

/**
 * Add slide image variable helper function
 *
 * @param $vars             - An array of variables to pass to the theme template.
 *        $image_type       - Slider image or pager image
 *        $cck_imagefield   - CCK generated image field name
 *        $alt              - Alternative text for the image
 *        $cck_content_type - Content type for getting default image
 *        $cck_field_name   - CCK field name for getting default image
 *        $link             - URL to link the image to
 */
function views_slideshow_ddblock_add_image($vars, $image_type, $cck_image_field, $alt=NULL, $cck_content_type=NULL, $cck_field_name=NULL, $link=NULL) {

  $link_prefix = '';
  $link_suffix = '';
  if ($vars['views_slideshow_ddblock_slider_settings']['imgcache_toggle'] == 1 && 
      $image_type == 'slider_item_image' && 
      module_exists('imagecache') &&
      is_array(imagecache_presets())
      ) {
      $used_image_type = $vars['views_slideshow_ddblock_slider_settings']['imgcache_slide'];
  }
  if ($vars['views_slideshow_ddblock_pager_settings']['imgcache_toggle'] == 1 && 
      $image_type == 'pager_item_image'&& 
      module_exists('imagecache') &&
      is_array(imagecache_presets())
      ) {
      $used_image_type = $vars['views_slideshow_ddblock_pager_settings']['imgcache_pager_item'];
  }
  // add slide_image variable
  if (isset($cck_image_field)) {
    // get image id
    $fid = $cck_image_field;
    // get path to image
    $filepath = db_result(db_query("SELECT filepath FROM {files} WHERE fid = %d", $fid));
  }
  // if image does not exist, try to find default content type imagefield image
  else {
    if (module_exists('imagefield')) {
      // cck fieldname, cck content type in use
      $field = content_fields($cck_field_name, $cck_content_type);
      if (!empty($field)) {
        $filepath = $field['widget']['default_image']['filepath'];
      }
    }
  }
  // if image or default imga e exists
  if (!empty($filepath)) {
    // add link to image if link exsist
    if (!empty($link)) {
      $link_prefix = '<a href="' . $link . '">';
      $link_suffix = '</a>';
    }
    //  use imagecache (imagecache, preset_name, file_path, alt, title, array of attributes)
    if ($used_image_type <> '<none>') {
      $image =
        $link_prefix .
        theme('imagecache',
              $used_image_type,
              $filepath,
              check_plain($alt)) .
        $link_suffix;
    }
    else {
      $image =
        $link_prefix .
        '<img src="' . base_path() . $filepath .
        '" alt="' . check_plain($alt) . '"/>' .
        $link_suffix;
    }
  }
  return $image;
}

/**
 * Add youtube thumbnail slide image variable helper function
 *
 * @param $cck_imagefield   - CCK generated image field name
 *        $alt              - Alternative text for the image
 *        $link             - URL to link the image to
 */
function views_slideshow_ddblock_add_thumbnail_image($cck_image_field, $alt=NULL, $link=NULL) {
  $link_prefix = '';
  $link_suffix = '';
  if (!empty($link)) {
    $link_prefix = '<a href="' . $link . '">';
    $link_suffix = '</a>';
  }
  if (isset($cck_image_field)) {
    $data=unserialize($cck_image_field);
    if (isset($data['thumbnail']['url'])) {
      $image = $link_prefix . '<img src="' . $data['thumbnail']['url'] . '" alt="' . $alt . '"/>' . $link_suffix;
    }
  }
  return $image;
}

/**
 *  content preprocess function.
 */
function template_preprocess_views_slideshow_ddblock(&$vars) {
  // simplify variable names
  $options = $vars['options']['views_slideshow_ddblock'];

  // DDblock template used
  if ($options['template'] <> 'none') {
    $view = $vars['view'];

    // get view result
    $rows = $view->result;
    $rows1 = &$view->field;

    // sort the result using ddblock, none for using order of view
    if (!empty($rows)) {
      switch ($options['settings']['order']) {
        case 'random':
          shuffle($rows);
          break;
        case 'asc' :
          asort($rows);
          break;
        case 'desc':
          rsort($rows);
          break;
        case 'none':
          break;
      }

      // set jquery cycle settings
      $settings['viewsSlideshowDdblockContent'][$vars['id']] = array(
      'block'                      => $vars['id'],
      'nrOfItems'                  => count($rows),
      'setDimensions'              => $options['template'],
      'contentContainer'           => $options['content_container']['container'],
      'sideFx'                     => $options['content_container']['side_fx'],
      'sideSpeed'                  => (int) $options['content_container']['side_speed'],
      'custom'                     => $options['custom']['custom_jquery'],
      'fx'                         => $options['settings']['fx'],
      'speed'                      => (int) $options['settings']['speed'],
      'timeOut'                    => (int) $options['settings']['timeout'],
      'pause'                      => (int) $options['settings']['pause'],
      'next'                       => (int) $options['settings']['next'],
      'overflow'                   => $options['settings']['overflow'],
      'pager'                      => $options['settings']['pager_settings']['pager'],
      'pagerContainer'             => $options['settings']['pager_settings']['pager_container'],
      'pagerEvent'                 => $options['settings']['pager_settings']['pager_event'],
      'pagerFast'                  => (int) $options['settings']['pager_settings']['pager_fast'],
      'pagerPause'                 => (int) $options['settings']['pager_settings']['pager_pause'],
      'pager2'                     => (int) $options['settings']['pager2'],
      'pager2Event'                => $options['settings']['pager2_settings']['pager2_event'],
      'pager2PagerHide'            => $options['settings']['pager2_settings']['pager2_pager']['pager2_pager_hide'],
      'pager2SlideHide'            => $options['settings']['pager2_settings']['pager2_slide']['pager2_slide_hide'],
      'slideText'                  => (int) $options['settings']['slide_text'],
      'slideTextjQuery'            => $options['settings']['slide_text_settings']['slide_text_jquery'],
      'slideTextPosition'          => $options['settings']['slide_text_settings']['slide_text_position'],
      'slideTextDelay'             => (int) $options['settings']['slide_text_settings']['slide_text_delay'],
      'slideTextDisplayTime'       => (int) $options['settings']['slide_text_settings']['slide_text_display_time'],
      'slideTextContainer'         => $options['settings']['slide_text_settings']['slide_text_container'],
      'slideTextEffectBefore'      => $options['settings']['slide_text_settings']['slide_jquery']['slide_text_before_effect'],
      'slideTextEffectBeforeSpeed' => (int) $options['settings']['slide_text_settings']['slide_jquery']['slide_text_before_speed'],
      'slideTextEffectAfter'       => $options['settings']['slide_text_settings']['slide_jquery']['slide_text_after_effect'],
      'slideTextEffectAfterSpeed'  => (int) $options['settings']['slide_text_settings']['slide_jquery']['slide_text_after_speed'],
      );

      // set template variables
      $vars['views_slideshow_ddblock_slider_settings']['delta']               = $vars['id'];
      $vars['views_slideshow_ddblock_slider_settings']['debug_info']          = $options['debug_info'];
      $vars['views_slideshow_ddblock_slider_settings']['output_type']         = 'view_fields';
      $vars['views_slideshow_ddblock_slider_settings']['pager']               = $options['settings']['pager_settings']['pager'];
      $vars['views_slideshow_ddblock_slider_settings']['pager_position']      = $options['settings']['pager_settings']['pager_position'];
      $vars['views_slideshow_ddblock_slider_settings']['pager2']              = $options['settings']['pager2'];
      $vars['views_slideshow_ddblock_slider_settings']['pager2_position']     = $options['settings']['pager2_settings']['pager2_position'];
      $vars['views_slideshow_ddblock_slider_settings']['pager2_pager_prev']   = $options['settings']['pager2_settings']['pager2_pager']['pager2_pager_prev'];
      $vars['views_slideshow_ddblock_slider_settings']['pager2_pager_next']   = $options['settings']['pager2_settings']['pager2_pager']['pager2_pager_next'];
      $vars['views_slideshow_ddblock_slider_settings']['pager2_slide_prev']   = $options['settings']['pager2_settings']['pager2_slide']['pager2_slide_prev'];
      $vars['views_slideshow_ddblock_slider_settings']['pager2_slide_next']   = $options['settings']['pager2_settings']['pager2_slide']['pager2_slide_next'];
      $vars['views_slideshow_ddblock_slider_settings']['slide_text']          = $options['settings']['slide_text'];
      $vars['views_slideshow_ddblock_slider_settings']['slide_text_position'] = $options['settings']['slide_text_settings']['slide_text_position'];
      $vars['views_slideshow_ddblock_slider_settings']['slide_text_info_button'] = $options['settings']['slide_text_settings']['slide_text_info_button'];
      $vars['views_slideshow_ddblock_slider_settings']['view_name']           = $view->name;
      $vars['views_slideshow_ddblock_slider_settings']['view_display_id']     = $view->current_display;
      $vars['views_slideshow_ddblock_slider_settings']['nr_of_items']         = count($rows);
      

      if ($options['imgcache_toggle'] == 1) {
        $vars['views_slideshow_ddblock_slider_settings']['imgcache_toggle']     = $options['imgcache_toggle'];
        $vars['views_slideshow_ddblock_slider_settings']['imgcache_slide']      = $options['imgcache']['imgcache_slide'];
      }

      if ($vars['views_slideshow_ddblock_slider_settings']['slide_text_position'] == "top" ||
          $vars['views_slideshow_ddblock_slider_settings']['slide_text_position'] == "bottom") {
        $vars['views_slideshow_ddblock_slider_settings']['slide_direction'] = "horizontal";
      }
      else {
        $vars['views_slideshow_ddblock_slider_settings']['slide_direction'] = "vertical";
      }
      $vars['views_slideshow_ddblock_slider_settings']['template'] = $options['template'];
      if ($vars['views_slideshow_ddblock_slider_settings']['template'] == 'custom' ) {
        $vars['views_slideshow_ddblock_slider_settings']['custom_template'] = $options['custom_template'];
      }

      $vars['views_slideshow_ddblock_content'] = $rows;

      // Add the required JS and CSS.
      // get module path to views_slideshow_ddblock module.
      $path = drupal_get_path('module', 'views_slideshow_ddblock');

      //add jcycle plugin
      drupal_add_js($path .'/js/jquery.cycle.all.min.js', 'module');

      //add easing plugin
      //drupal_add_js($path .'/js/jquery.easing.1.1.1.js', 'module');

      // add ddblock js file
      drupal_add_js($path .'/js/json2.pack.js', 'module');

      // add ddblock js file
      drupal_add_js($path .'/js/views_slideshow_ddblock.js', 'module');

      // add Cascading style sheet
      //drupal_add_css($path .'/views_slideshow_ddblock.css', 'module', 'all', TRUE);

      drupal_add_js($settings, 'setting');

      // additional candidate template files
      if ($options['template'] == 'custom') {
        $vars['template_files'][] = 'views-slideshow-ddblock-cycle-block-content-'. $options['custom_template'];
        $vars['template_files'][] = 'views-slideshow-ddblock-cycle-block-content-'. $vars['id'];
      }
      else {
        $vars['template_files'][] = 'views-slideshow-ddblock-cycle-block-content-'. $options['template'];
        $vars['template_files'][] = 'views-slideshow-ddblock-cycle-block-content-'. $vars['id'];
      }

      // pager content settings
      $pager_settings['delta']               = $vars['id'];
      $pager_settings['debug_info']          = $options['debug_info'];
      $pager_settings['output_type']         = 'view_fields';
      $pager_settings['pager']               = $options['settings']['pager_settings']['pager'];
      $pager_settings['pager_container']     = $options['settings']['pager_settings']['pager_container'];
      $pager_settings['pager_event']         = $options['settings']['pager_settings']['pager_event'];
      $pager_settings['pager_position']      = $options['settings']['pager_settings']['pager_position'];
      $pager_settings['pager2']              = $options['settings']['pager2'];
      $pager_settings['pager2_position']     = $options['settings']['pager2_settings']['pager2_position'];
      $pager_settings['pager2_pager_prev']   = $options['settings']['pager2_settings']['pager2_pager']['pager2_pager_prev'];
      $pager_settings['pager2_pager_next']   = $options['settings']['pager2_settings']['pager2_pager']['pager2_pager_next'];
      $pager_settings['pager2_slide_prev']   = $options['settings']['pager2_settings']['pager2_slide']['pager2_slide_prev'];
      $pager_settings['pager2_slide_next']   = $options['settings']['pager2_settings']['pager2_slide']['pager2_slide_next'];
      $pager_settings['slide_text']          = $options['settings']['slide_text'];
      $pager_settings['slide_text_info_button']      = $options['settings']['slide_text_settings']['slide_text_info_button'];
      $pager_settings['template']            = $options['template'];
      $pager_settings['custom_template']     = $options['custom_template'];
      $pager_settings['view_name']           = $view->name;
      $pager_settings['view_display_id']     = $view->current_display;

      if ($options['imgcache_toggle'] == 1) {
        $pager_settings['imgcache_toggle']     = $options['imgcache_toggle'];
        $pager_settings['imgcache_pager_item'] = $options['imgcache']['imgcache_pager_item'];
      }

      $vars['views_slideshow_ddblock_pager_content'] = theme(
        'views_slideshow_ddblock_pager_content',
        $pager_settings,
        $vars['views_slideshow_ddblock_content']
      );
    } //empty rows
  }
}
/**
 *  Pager-items preprocess function.
 */
function template_preprocess_views_slideshow_ddblock_pager_content(&$vars) {
  if (!empty($vars['views_slideshow_ddblock_content'])) {

    //simplify variable
    $settings = $vars['views_slideshow_ddblock_pager_settings'];

    // additional candidate template files
    if ($settings['template'] == 'custom') {
      $vars['template_files'][] = 'views-slideshow-ddblock-cycle-pager-content-'. $settings['custom_template'];
      $vars['template_files'][] = 'views-slideshow-ddblock-cycle-pager-content-'. $settings['delta'];
    }
    else {
      $vars['template_files'][] = 'views-slideshow-ddblock-cycle-pager-content-'. $settings['template'];
      $vars['template_files'][] = 'views-slideshow-ddblock-cycle-pager-content-'. $settings['delta'];
    }
  }
}