template.php

<?php

/**
 * @file
 * Overrides and any custom code for the compro theme.
 */

/**
 * Implements template_preprocess_html().
 */
function compro_theme_preprocess_html(&$vars) {
  // Add an X-UA-COMPATIBLE meta tag.
  drupal_add_html_head(array(
    '#type' => 'html_tag',
    '#tag' => 'meta',
    '#attributes' => array(
      'http-equiv' => 'X-UA-COMPATIBLE',
      'content' => 'IE=edge',
    ),
  ), 'compro_theme_xua_compatible');

  // Add a viewport meta tag.
  drupal_add_html_head(array(
    '#type' => 'html_tag',
    '#tag' => 'meta',
    '#attributes' => array(
      'name' => 'viewport',
      'content' => 'width=device-width, initial-scale=1',
    ),
  ), 'compro_theme_viewport');

  // Skip link.
  $vars['skip_link'] = array(
    '#type' => 'container',
    '#attributes' => array(
      'id' => 'skip-link',
      'class' => array(
        'hide',
      ),
    ),
    'skip_link' => array(
      '#markup' => l(t('Skip to main content'), '', array(
        'attributes' => array(
          'class' => array(
            'element-invisible',
            'element-focusable',
          ),
        ),
        'external' => TRUE,
        'fragment' => 'content-regions',
      )),
    ),
  );
}

/**
 * Implements template_preprocess_region().
 */
function compro_theme_preprocess_region(&$vars) {
  $vars['attributes'] = drupal_attributes($vars['attributes_array']);
}

/**
 * Implements template_preprocess_entity().
 */
function compro_theme_preprocess_entity(&$vars) {
  $vars['classes_array'][] = drupal_html_class('view-mode-' . $vars['view_mode']);
}

/**
 * Implements template_preprocess_node().
 */
function compro_theme_preprocess_node(&$vars) {
  $vars['classes_array'][] = drupal_html_class('view-mode-' . $vars['view_mode']);
  unset($vars['content']['links']);
}

/**
 * Override or insert variables into the block templates.
 */
function compro_theme_preprocess_block(&$vars) {
  // Classes describing the position of the block within the region.
  if ($vars['block_id'] == 1) {
    $vars['classes_array'][] = 'first';
  }
  // The last_in_region property is set in compro_theme_page_alter().
  if (isset($vars['block']->last_in_region)) {
    $vars['classes_array'][] = 'last';
  }
}

/**
 * Implementation of hook_theme().
 */
function compro_theme_theme() {
  $items = array();

  // Split out pager list into separate theme function.
  $items['pager_list'] = array('arguments' => array(
    'tags' => array(),
    'limit' => 10,
    'element' => 0,
    'parameters' => array(),
    'quantity' => 9,
  ));

  return $items;
}

/**
 * Implements hook_page_alter().
 */
function compro_theme_page_alter(&$page) {
  // Look in each visible region for blocks.
  foreach (system_region_list($GLOBALS['theme'], REGIONS_VISIBLE) as $region => $name) {
    if (!empty($page[$region])) {
      // Find the last block in the region.
      $blocks = array_reverse(element_children($page[$region]));
      while ($blocks && !isset($page[$region][$blocks[0]]['#block'])) {
        array_shift($blocks);
      }
      if ($blocks) {
        $page[$region][$blocks[0]]['#block']->last_in_region = TRUE;
      }
    }
  }
}

/**
 * Override of theme('breadcrumb').
 */
function compro_theme_breadcrumb($vars) {
  $output = '<div class="breadcrumb">';

  // Add current page onto the end.
  if (!drupal_is_front_page()) {
    $item = menu_get_item();
    $end = end($vars['breadcrumb']);
    if ($end && strip_tags($end) !== $item['title']) {
      $vars['breadcrumb'][] = "<strong>" . check_plain($item['title']) . "</strong>";
    }
  }

  // Optional: Add the site name to the front of the stack.
  if (!empty($vars['prepend'])) {
    $site_name = empty($vars['breadcrumb']) ? "<strong>" . check_plain(variable_get('site_name', '')) . "</strong>" : l(variable_get('site_name', ''), '<front>', array('purl' => array('disabled' => TRUE)));
    array_unshift($vars['breadcrumb'], $site_name);
  }

  $depth = 0;
  $count = count($vars['breadcrumb']);
  foreach ($vars['breadcrumb'] as $link) {
    $output .= "<span class='breadcrumb-link breadcrumb-depth-{$depth}'>{$link}</span>";
    $output .= ($depth < ($count - 1)) ? '<span class="delimiter">»</span>': '';
    $depth++;
  }
  return $output . '</div>';
}

/**
 * Override the default button theming to actually use buttons.
 */
function compro_theme_button($vars) {
  $element = $vars['element'];
  $element['#attributes']['type'] = 'submit';
  element_set_attributes($element, array('id', 'name', 'value'));

  $element['#attributes']['class'][] = 'form-' . $element['#button_type'];
  if (!empty($element['#attributes']['disabled'])) {
    $element['#attributes']['class'][] = 'form-button-disabled';
  }

  return '<button' . drupal_attributes($element['#attributes']) . '>' . $element['#value'] . '</button>';
}

/**
 * Override of theme_image().
 */
function compro_theme_image($vars) {
  $attributes = $vars['attributes'];
  $attributes['src'] = file_create_url($vars['path']);

  foreach (array('alt', 'title') as $key) {
    if (isset($vars[$key])) {
      $attributes[$key] = $vars[$key];
    }
  }

  // Just in case there isn't an alt attribute by this point.
  if (!isset($attributes['alt'])) {
    $attributes['alt'] = '';
  }

  return '<img' . drupal_attributes($attributes) . ' />';
}

/**
 * Override of theme_pager().
 */
function compro_theme_pager($vars) {
  $tags = $vars['tags'];
  $element = $vars['element'];
  $parameters = $vars['parameters'];
  $quantity = $vars['quantity'];
  $pager_list = theme('pager_list', $vars);

  $links = array();
  $links['pager-first'] = theme('pager_first', array(
    'text' => (isset($tags[0]) ? $tags[0] : t('First')),
    'element' => $element,
    'parameters' => $parameters
  ));
  $links['pager-previous'] = theme('pager_previous', array(
    'text' => (isset($tags[1]) ? $tags[1] : t('Prev')),
    'element' => $element,
    'interval' => 1,
    'parameters' => $parameters
  ));
  $links['pager-next'] = theme('pager_next', array(
    'text' => (isset($tags[3]) ? $tags[3] : t('Next')),
    'element' => $element,
    'interval' => 1,
    'parameters' => $parameters
  ));
  $links['pager-last'] = theme('pager_last', array(
    'text' => (isset($tags[4]) ? $tags[4] : t('Last')),
    'element' => $element,
    'parameters' => $parameters
  ));
  $links = array_filter($links);
  $pager_links = theme('links', array(
    'links' => $links,
    'attributes' => array('class' => 'links pager pager-links')
  ));
  if ($pager_list) {
    return '<div class="pager clearfix">' . $pager_list . ' ' . $pager_links . '</div>';
  }
}

/**
 * Return an array suitable for theme_links() rather than marked up HTML link.
 */
function compro_theme_pager_link($vars) {
  $text = $vars['text'];
  $page_new = $vars['page_new'];
  $element = $vars['element'];
  $parameters = $vars['parameters'];
  $attributes = $vars['attributes'];

  $page = isset($_GET['page']) ? $_GET['page'] : '';
  if ($new_page = implode(',', pager_load_array($page_new[$element], $element, explode(',', $page)))) {
    $parameters['page'] = $new_page;
  }

  $query = array();
  if (count($parameters)) {
    $query = drupal_get_query_parameters($parameters, array());
  }
  if ($query_pager = pager_get_query_parameters()) {
    $query = array_merge($query, $query_pager);
  }

  // Set each pager link title
  if (!isset($attributes['title'])) {
    static $titles = NULL;
    if (!isset($titles)) {
      $titles = array(
        t('« first') => t('Go to first page'),
        t('‹ previous') => t('Go to previous page'),
        t('next ›') => t('Go to next page'),
        t('last »') => t('Go to last page'),
      );
    }
    if (isset($titles[$text])) {
      $attributes['title'] = $titles[$text];
    }
    else if (is_numeric($text)) {
      $attributes['title'] = t('Go to page @number', array('@number' => $text));
    }
  }

  return array(
    'title' => $text,
    'href' => $_GET['q'],
    'attributes' => $attributes,
    'query' => count($query) ? $query : NULL,
  );
}

/**
 * Split out page list generation into its own function.
 */
function compro_theme_pager_list($vars) {
  $tags = $vars['tags'];
  $element = $vars['element'];
  $parameters = $vars['parameters'];
  $quantity = $vars['quantity'];

  global $pager_page_array, $pager_total;
  if ($pager_total[$element] > 1) {
    // Calculate various markers within this pager piece:
    // Middle is used to "center" pages around the current page.
    $pager_middle = ceil($quantity / 2);
    // current is the page we are currently paged to
    $pager_current = $pager_page_array[$element] + 1;
    // first is the first page listed by this pager piece (re quantity)
    $pager_first = $pager_current - $pager_middle + 1;
    // last is the last page listed by this pager piece (re quantity)
    $pager_last = $pager_current + $quantity - $pager_middle;
    // max is the maximum page number
    $pager_max = $pager_total[$element];
    // End of marker calculations.

    // Prepare for generation loop.
    $i = $pager_first;
    if ($pager_last > $pager_max) {
      // Adjust "center" if at end of query.
      $i = $i + ($pager_max - $pager_last);
      $pager_last = $pager_max;
    }
    if ($i <= 0) {
      // Adjust "center" if at start of query.
      $pager_last = $pager_last + (1 - $i);
      $i = 1;
    }
    // End of generation loop preparation.

    $links = array();

    // When there is more than one page, create the pager list.
    if ($i != $pager_max) {
      // Now generate the actual pager piece.
      for ($i; $i <= $pager_last && $i <= $pager_max; $i++) {
        if ($i < $pager_current) {
          $links["$i pager-item"] = theme('pager_previous', array(
            'text' => $i,
            'element' => $element,
            'interval' => ($pager_current - $i),
            'parameters' => $parameters
          ));
        }
        if ($i == $pager_current) {
          $links["$i pager-current"] = array('title' => $i);
        }
        if ($i > $pager_current) {
          $links["$i pager-item"] = theme('pager_next', array(
            'text' => $i,
            'element' => $element,
            'interval' => ($i - $pager_current),
            'parameters' => $parameters
          ));
        }
      }
      return theme('links', array(
        'links' => $links,
        'attributes' => array('class' => 'links pager pager-list')
      ));
    }
  }
  return '';
}

/**
 * Override of theme('status_messages').
 */
function compro_theme_status_messages($vars) {
  $output = '';
  if (!isset($vars['messages'])) {
    $display = $vars['display'];
    $vars['messages'] = drupal_get_messages($display);
  }
  $status_heading = array(
    'status' => t('Status message'),
    'error' => t('Error message'),
    'warning' => t('Warning message'),
  );

  if (count($vars['messages']) === 0) {
    return '';
  }

  foreach ($vars['messages'] as $type => $messages) {
    $output .= "<div class=\"messages $type\">\n";
    if (!empty($status_heading[$type])) {
      $output .= '<h2 class="element-invisible">' . $status_heading[$type] . "</h2>\n";
    }
    if (count($messages) > 1) {
      $output .= " <ul>\n";
      foreach ($messages as $message) {
        $output .= '  <li>' . $message . "</li>\n";
      }
      $output .= " </ul>\n";
    }
    else {
      $output .= $messages[0];
    }
    $output .= "</div>\n";
  }
  return $output;
}

/**
 * Override of theme('textarea').
 * Deprecate misc/textarea.js in favor of using the 'resize' CSS3 property.
 */
function compro_theme_textarea($vars) {
  $element = $vars['element'];
  $element['#attributes']['name'] = $element['#name'];
  $element['#attributes']['id'] = $element['#id'];
  $element['#attributes']['cols'] = $element['#cols'];
  $element['#attributes']['rows'] = $element['#rows'];
  _form_set_class($element, array('form-textarea'));

  $wrapper_attributes = array(
    'class' => array('form-textarea-wrapper'),
  );

  // Add resizable behavior.
  if (!empty($element['#resizable'])) {
    $wrapper_attributes['class'][] = 'resizable';
  }

  $output = '<div' . drupal_attributes($wrapper_attributes) . '>';
  $output .= '<textarea' . drupal_attributes($element['#attributes']) . '>' . check_plain($element['#value']) . '</textarea>';
  $output .= '</div>';
  return $output;
}

/**
 * Override of theme_views_mini_pager().
 */
function compro_theme_views_mini_pager($vars) {
  $tags = $vars['tags'];
  $quantity = $vars['quantity'];
  $element = $vars['element'];
  $parameters = $vars['parameters'];

  global $pager_page_array, $pager_total;

  // Calculate various markers within this pager piece:
  // Middle is used to "center" pages around the current page.
  $pager_middle = ceil($quantity / 2);
  // current is the page we are currently paged to
  $pager_current = $pager_page_array[$element] + 1;
  // max is the maximum page number
  $pager_max = $pager_total[$element];
  // End of marker calculations.

  $links = array();
  if ($pager_total[$element] > 1) {
    $links['pager-previous'] = theme('pager_previous', array(
      'text' => (isset($tags[1]) ? $tags[1] : t('Prev')),
      'element' => $element,
      'interval' => 1,
      'parameters' => $parameters
    ));
    $links['pager-current'] = array(
      'title' => t('@current of @max', array(
        '@current' => $pager_current,
        '@max' => $pager_max)
      )
    );
    $links['pager-next'] = theme('pager_next', array(
      'text' => (isset($tags[3]) ? $tags[3] : t('Next')),
      'element' => $element,
      'interval' => 1,
      'parameters' => $parameters
    ));
    return theme('links', array('links' => $links, 'attributes' => array('class' => array('links', 'pager', 'views-mini-pager'))));
  }
}

/**
 * Implements hook_css_alter()
 */
function compro_theme_css_alter(&$css) {
  // Remove Drupal core CSS.
  if (theme_get_setting('compro_theme_disable_core_css')) {
    foreach($css as $path => $values) {
      if(strpos($path, 'modules/') === 0) {
        unset($css[$path]);
      }
    }
  }
}