views_litepager.module in Views Litepager 6.2

File

views_litepager.module

<?php

/**
 * Implement hook_views_pre_execute().
 */
function views_litepager_views_pre_execute(&$view) {
  if ($view->pager['use_pager'] === 'lite') {

    // Prevent views from executing a count query
    $view->get_total_rows = FALSE;
    $view->pager['use_pager'] = FALSE;

    // Enable flag so we can theme the Lite pager later
    $view->pager['litepager'] = TRUE;
    global $pager_page_array, $pager_total, $pager_total_items;

    // What page was requested:
    $pager_page_array = isset($_GET['page']) ? explode(',', $_GET['page']) : array();
    $current_page = !empty($pager_page_array) ? $pager_page_array[$view->pager['element']] : 0;
    $min_pages = max($current_page + 1, 2);

    // total rows in query
    $pager_total_items[$view->pager['element']] = $view->pager['items_per_page'] * $min_pages + 1;

    // total pages
    $pager_total[$view->pager['element']] = (int) ceil($pager_total_items[$view->pager['element']] / $view->pager['items_per_page']);

    // If the requested page was within range. $this->pager['current_page']
    // defaults to 0 so we don't need to set it in an out-of-range condition.
    if (!empty($pager_page_array[$view->pager['element']])) {
      $page = intval($pager_page_array[$view->pager['element']]);
      if ($page > 0 && $page < $pager_total[$view->pager['element']]) {
        $view->pager['current_page'] = $page;
      }
    }
    $pager_page_array[$view->pager['element']] = $view->pager['current_page'];
  }
}

/**
 * Implement hook_views_pre_render().
 */
function views_litepager_views_pre_render(&$view) {
  if (!empty($view->pager['litepager'])) {

    // Turn the $use_pager variable back on for the rendering process
    $view->pager['use_pager'] = TRUE;

    // Make this the last page, if the $items_per_page is > the results
    global $pager_total;
    if (count($view->result) < $view->pager['items_per_page']) {
      $pager_total[$view->pager['element']] = $view->pager['current_page'] + 1;
    }
  }
}

/**
 * Implement hook_form_alter().
 * Add Lite pager option to Views UI
 */
function views_litepager_form_alter(&$form, &$form_state, $form_id) {
  if ($form_id == 'views_ui_edit_display_form' && $form_state['section'] == 'use_pager') {
    $form['use_pager']['#options']['lite'] = t('Lite pager');
  }
}

/**
 * Implement hook_theme().
 * Add a theme function for the Lite pager
 */
function views_litepager_theme() {
  return array(
    'views_litepager' => array(
      'tags' => array(),
      'limit' => 10,
      'element' => 0,
      'parameters' => array(),
    ),
  );
}

/**
 * Theming function for rendering the Lite pager
 * This code is based on theme_pager()
 */
function theme_views_litepager($tags, $limit, $element, $parameters = array()) {
  global $pager_page_array, $pager_total;
  $li_first = theme('pager_first', isset($tags[0]) ? $tags[0] : t('« first'), $limit, $element, $parameters);
  $li_previous = theme('pager_previous', isset($tags[1]) ? $tags[1] : t('‹ previous'), $limit, $element, 1, $parameters);
  $li_next = theme('pager_next', isset($tags[3]) ? $tags[3] : t('next ›'), $limit, $element, 1, $parameters);
  if ($pager_total[$element] > 1) {
    if ($li_first) {
      $items[] = array(
        'class' => 'pager-first',
        'data' => $li_first,
      );
    }
    if ($li_previous) {
      $items[] = array(
        'class' => 'pager-previous',
        'data' => $li_previous,
      );
    }

    // End generation.
    if ($li_next) {
      $items[] = array(
        'class' => 'pager-next',
        'data' => $li_next,
      );
    }
    return theme('item_list', $items, NULL, 'ul', array(
      'class' => 'pager',
    ));
  }
}

/**
 * Preprocess function for the primary view template
 * Add the Lite pager to the View template
 */
function views_litepager_preprocess_views_view(&$vars) {
  if (!empty($vars['view']->pager['litepager'])) {
    $exposed_input = isset($vars['view']->exposed_data_raw) ? $vars['view']->exposed_data_raw : NULL;
    $vars['pager'] = theme('views_litepager', $exposed_input, $vars['view']->pager['items_per_page'], $vars['view']->pager['element']);
  }
}

Functions

Name	Description
theme_views_litepager	Theming function for rendering the Lite pager This code is based on theme_pager()
views_litepager_form_alter	Implement hook_form_alter(). Add Lite pager option to Views UI
views_litepager_preprocess_views_view	Preprocess function for the primary view template Add the Lite pager to the View template
views_litepager_theme	Implement hook_theme(). Add a theme function for the Lite pager
views_litepager_views_pre_execute	Implement hook_views_pre_execute().
views_litepager_views_pre_render	Implement hook_views_pre_render().