<?php
/**
 * @file
 * Contains the theme's functions to manipulate Drupal's default markup.
 *
 * Complete documentation for this file is available online.
 * @see https://drupal.org/node/1728096
 */


/**
 * Override or insert variables into the maintenance page template.
 *
 * @param $variables
 *   An array of variables to pass to the theme template.
 * @param $hook
 *   The name of the template being rendered ("maintenance_page" in this case.)
 */

function mpiwgzen_wide_preprocess_maintenance_page(&$variables, $hook) {
  // When a variable is manipulated or added in preprocess_html or
  // preprocess_page, that same work is probably needed for the maintenance page
  // as well, so we can just re-use those functions to do that work here.
  mpiwgzen_wide_preprocess_html($variables, $hook);
  mpiwgzen_wide_preprocess_page($variables, $hook);
}
// */

/**
 * Override or insert variables into the html templates.
 *
 * @param $variables
 *   An array of variables to pass to the theme template.
 * @param $hook
 *   The name of the template being rendered ("html" in this case.)
 */

function mpiwgzen_wide_preprocess_html(&$variables, $hook) {
  $variables['sample_variable'] = t('Lorem ipsum.');

  // The body tag's classes are controlled by the $classes_array variable. To
  // remove a class from $classes_array, use array_diff().
  //$variables['classes_array'] = array_diff($variables['classes_array'], array('class-to-remove'));
}
// */

/**
 * Override or insert variables into the page templates.
 *
 * @param $variables
 *   An array of variables to pass to the theme template.
 * @param $hook
 *   The name of the template being rendered ("page" in this case.)
 */

function mpiwgzen_wide_preprocess_page(&$variables, $hook) {
  $variables['sample_variable'] = t('Lorem ipsum.');
  // Change the logo for logged in users.
  //if (!user_is_logged_in()) {
  //  $variables['logo'] = 'http://echo-dev.rz-berlin.mpg.de/echo-dev/sites/all/themes/mpiwgzen_wide/echo-logo-extern.png';
  //}
}

// */

/**
 * Override or insert variables into the node templates.
 *
 * @param $variables
 *   An array of variables to pass to the theme template.
 * @param $hook
 *   The name of the template being rendered ("node" in this case.)
 */

/**
 * Also change text of "read more" depending on content type
 * as explained on 
 * http://www.dreamleaf.co.uk/drupal/drupal-7-custom-read-more-links-content-type
 */

function mpiwgzen_wide_preprocess_node(&$variables, $hook) {
  $variables['sample_variable'] = t('Lorem ipsum.');

  // Optionally, run node-type-specific preprocess functions, like
  // mpiwgzen_wide_preprocess_node_page() or mpiwgzen_wide_preprocess_node_story().
  $function = __FUNCTION__ . '_' . $variables['node']->type;
  if (function_exists($function)) {
    $function($variables, $hook);
  }
// Let's get that read more link out of the generated links variable!
  unset($variables['content']['links']['node']['#links']['node-readmore']);
// Now let's put it back as it's own variable! So it's actually versatile!
  if ($variables['type'] == 'digitalcollection') {
    $variables['newreadmore'] = t('<span class="digitalcollectionmore"> <a href="!title">view collection</a> </span>',
      array('!title' => $variables['node_url'],)
    );
  }
  else {
      $variables['newreadmore'] = t('<span class="newreadmore"> <a href="!title">read more</a> </span>',
      array('!title' => $variables['node_url'],)
);
  }

}


// */

/**
 * Override or insert variables into the comment templates.
 *
 * @param $variables
 *   An array of variables to pass to the theme template.
 * @param $hook
 *   The name of the template being rendered ("comment" in this case.)
 */

function mpiwgzen_wide_preprocess_comment(&$variables, $hook) {
  $variables['sample_variable'] = t('Lorem ipsum.');
}
// */

/**
 * Override or insert variables into the region templates.
 *
 * @param $variables
 *   An array of variables to pass to the theme template.
 * @param $hook
 *   The name of the template being rendered ("region" in this case.)
 */

function mpiwgzen_wide_preprocess_region(&$variables, $hook) {
  // Don't use Zen's region--sidebar.tpl.php template for sidebars.
  //if (strpos($variables['region'], 'sidebar_') === 0) {
  //  $variables['theme_hook_suggestions'] = array_diff($variables['theme_hook_suggestions'], array('region__sidebar'));
  //}
}
// */

/**
 * Override or insert variables into the block templates.
 *
 * @param $variables
 *   An array of variables to pass to the theme template.
 * @param $hook
 *   The name of the template being rendered ("block" in this case.)
 */

function mpiwgzen_wide_preprocess_block(&$variables, $hook) {
  // Add a count to all the blocks in the region.
  // $variables['classes_array'][] = 'count-' . $variables['block_id'];

  // By default, Zen will use the block--no-wrapper.tpl.php for the main
  // content. This optional bit of code undoes that:
  //if ($variables['block_html_id'] == 'block-system-main') {
  //  $variables['theme_hook_suggestions'] = array_diff($variables['theme_hook_suggestions'], array('block__no_wrapper'));
  //}
}

/**
 * Add placeholders for forms
 */

function mpiwgzen_wide_form_alter( &$form, &$form_state, $form_id )
{
// Username and Password in user login form
    if (in_array( $form_id, array( 'user_login', 'user_login_block')))
    {
        $form['name']['#attributes']['placeholder'] = t( 'username' );
        $form['pass']['#attributes']['placeholder'] = t( 'password' );
    }
// search
//    if ($form_id == 'search_block_form') 
//    {
//        $form['search_block_form']['#attributes']['placeholder'] = t('Search...');
//    }
}



// */