<?php
// $Id$

/**
 * @file
 * Main template file for programatically customize Origo's oxymoron theme.
 */

function oxymoron_theme() {
  return array(
    'oxymoron_node' => array(
      'template' => 'node'
    ),
    'oxymoron_comment' => array(
      'template' => 'comment'
    ),
    'oxymoron_box' => array(
      'template' => 'box'
    ),
    'oxymoron_block' => array(
      'template' => 'block'
    ),
    'oxymoron_maintenance_page' => array(
      'template' => 'maintenance_page'
    ),
    'oxymoron_search-theme-form' => array(
      'template' => 'search-theme-form'
    ),
    'render_primary_links' => array(
      'arguments' => array('links' => NULL)
    ),
  );
}

// We use this to inject a proper page suggestion template for issue nodes.
// See http://www.ajaxhacking.com/156/changing_pagetpl_based_on_node_type
function oxymoron_preprocess(&$vars, $hook) {
  switch ($hook) {
    case 'page':
      // Add a content-type page template in second to last.
      if ('node' == arg(0)) {
        $node_template = array_pop($vars['template_files']);
        $vars['template_files'][]  = 'page-'. $vars['node']->type;
        $vars['template_files'][]  = $node_template;
      }
      break;
  }
  return $vars;
}

/**
 * Implementation of hook preporcess_page().
 * Used for intercepting & adding of variables.
 * @return unknown_type
 */
function oxymoron_preprocess_page(&$vars) {
  // Send a new variable, $logged_in, to page.tpl.php to tell us if the current user is logged in or out.

  // get the currently logged in user
  global $user;

  $vars['user'] = $user;
  $vars['logged_in'] = $user->uid > 0;

  $body_classes = array();
  // classes for body element
  // allows advanced theming based on context (home page, node of certain type, etc.)
  $body_classes[] = ($vars['is_front']) ? 'front' : 'not-front';
  $body_classes[] = ($vars['logged_in']) ? 'logged-in' : 'not-logged-in';
  if ($vars['node']->type) {
    $body_classes[] = 'ntype-'. zen_id_safe($vars['node']->type);
  }
  switch (TRUE) {
    case $vars['sidebar_left'] && $vars['sidebar_right'] :
      $body_classes[] = 'both-sidebars';
      break;
    case $vars['sidebar_left'] :
      $body_classes[] = 'sidebar-left';
      break;
    case $vars['sidebar_right'] :
      $body_classes[] = 'sidebar-right';
      break;
  }
  // implode with spaces
  $vars['body_classes'] = implode(' ', $body_classes);

  // This will show the menu blocks on an 404 page
    // Only does the check if required
  if (!$vars['show_blocks']) {
    global $theme;
    $regions = system_region_list($theme);
    foreach (array_keys($regions) as $region) {
      // Only set left and right regions
      // Drupal core sets the other blocks already
      // IMHO this shows a real lack of design considerations for leaving these out!
      if ($region == 'left' || $region == 'right') {
        $blocks = theme('blocks', $region);
        if (isset($variables[$region])) {
          $vars[$region] .= $blocks;
        }
        else {
          $vars[$region] = $blocks;
        }
      }
    }
  }

  // Now define node type-specific variables by calling their own preprocess functions (if they exist)
  $function = 'oxymoron_preprocess_page'.'_'. $vars['node']->type;
  if (function_exists($function)) {
    $function(&$vars);
  }
}

function oxymoron_preprocess_page_issue(&$vars) {
    $foo = 'bar';
    $vars['issue_header'] = $vars['node']->issue_header;
}

/**
 * Implementation of hook preporcess_node().
 * Used for intercepting & adding of variables.
 * @return unknown_type
 */
function oxymoron_preprocess_node(&$vars) {
  // get the currently logged in user
  global $user;

  // set a new $is_admin variable
  // this is determined by looking at the currently logged in user and seeing if they are in the role 'admin'
  $vars['is_admin'] = in_array('admin', $user->roles);

  $node_classes = array('node');
  if ($vars['sticky']) {
    $node_classes[] = 'sticky';
  }
  if (!$vars['node']->status) {
    $node_classes[] = 'node-unpublished';
  }
  $node_classes[] = 'ntype-'. zen_id_safe($vars['node']->type);
  // implode with spaces
  $vars['node_classes'] = implode(' ', $node_classes);
}

/**
 * Implementation of hook preporcess_comment().
 * Used for intercepting & adding of variables.
 * @return unknown_type
 */
function oxymoron_preprocess_comment(&$vars, $links = 0) {
  // we load the node object that the current comment is attached to
  $node = node_load($vars['comment']->nid);
  // if the author of this comment is equal to the author of the node, we set a variable
  // then in our theme we can theme this comment differently to stand out
  $vars['author_comment'] = $vars['comment']->uid == $node->uid ? TRUE : FALSE;

  $comment = $vars['comment'];
  $vars['author'] = theme('username', $comment);
  $vars['comment'] = $comment;
  $vars['content'] = $comment->comment;
  $vars['date'] = format_date($comment->timestamp);

  //--------------------------------------------------------------------------
  // In order to remove the 'reply' link, it's necessary to get them again as
  // an array. By the time this function is called, they have already been
  // rendered as HTML.
  if (isset($links)) {
    $link_array = module_invoke_all('link', 'comment', $comment);
    $vars['links'] = theme('links', $link_array, array('class' => 'links inline'));
  }
  else {
    $vars['links'] = '';
  }

  $vars['new'] = $comment->new ? t('new') : '';
  $vars['picture'] = theme_get_setting('toggle_comment_user_picture') ? theme('user_picture', $comment) : '';
  $vars['submitted'] = t('Submitted by !a on @b.',
                        array('!a' => theme('username', $comment),
                              '@b' => format_date($comment->timestamp)));
  $vars['title'] = l($comment->subject, $_GET['q'], array('fragment' => "comment-$comment->cid"));
  // from comment.module:
  //               l($comment->subject, comment_node_url() .'/'. $comment->cid, array('fragment' => "comment-$comment->cid"))

}

/**
 * Theming for the "maintenance page".
 */
function oxymoron_preprocess_maintenance_page(&$vars) {

  $vars['head_title'] = "Maintenance Page";
  $vars['title'] = "Maintenance Page";
  $vars['styles'] = '<style type="text/css">@import "/sites/all/themes/oxymoron/style.css";</style>';
  $vars['picture'] = theme_get_setting('toggle_comment_user_picture') ? theme('user_picture', $comment) : '';
  oxymoron_preprocess_page($vars);
}


/**
 * Prepare the values passed to the theme_links function
 * Overwrites theme_links
 */
function oxymoron_links($links, $attributes = array('class' => 'links')) {
  $output = '';

  // Hack to remove the 'My blog' link if a project owner hides the 'Blog' link
  foreach ($links as $id => $link) {
    if ($link['title'] == "My blog") {
      unset($links[$id]);
      break;
    }
  }

  if (count($links) > 0) {
    $output = '<ul'. drupal_attributes($attributes) .'>';

    $num_links = count($links);
    $i = 1;

    foreach ($links as $key => $link) {
      $class = '';

      // Automatically add a class to each link and also to each LI
      if (isset($link['attributes']) && isset($link['attributes']['class'])) {
        $link['attributes']['class'] .= ' '. $key;
        $class = $key;
      }
      else {
        $link['attributes']['class'] = $key . ' ' . strtolower($link['title']);
        $class = $key;
      }

      // Add first and last classes to the list of links to help out themers.
      $extra_class = '';
      if ($i == 1) {
        $extra_class .= 'first ';
      }
      if ($i == $num_links) {
        $extra_class .= 'last ';
      }
      $output .= '<li class="'. $extra_class . $class .'">';

      // Is the title HTML?
      $html = isset($link['html']) && $link['html'];

      // Initialize fragment and query variables.
      $link['query'] = isset($link['query']) ? $link['query'] : NULL;
      $link['fragment'] = isset($link['fragment']) ? $link['fragment'] : NULL;

      if (isset($link['href'])) {
		$output .= l($link['title'], $link['href'], array(
			'attributes' => $link['attributes'],
			'query' => $link['query'],
			'fragment' => $link['fragment'],
			'html' => $html));
      }
      else if ($link['title']) {
        //Some links are actually not links, but we wrap these in <span> for adding title and class attributes
        if (!$html) {
          $link['title'] = check_plain($link['title']);
        }
        $output .= '<span'. drupal_attributes($link['attributes']) .'>'. $link['title'] .'</span>';
      }

      $i++;
      $output .= "</li>\n";
    }

    $output .= '</ul>';
  }

  return $output;
}


/**
 * Custom function for the menu pictures
 */

function oxymoron_render_primary_links($links) {
  $output = "\n<ul id='navlist'>\n";

  foreach ($links as $link) {
    if (empty($link['localized_options'])) {
      $link['localized_options'] = array();
    }

    $link['attributes']['class'] = strtolower($link['title']);

    $output .= "\t<li>". l('<div class="'. strtolower($link['title']) .'"><span class="notext">'. $link['title'] .'</span></div>', $link['href'], array(
			'attributes' => $link['attributes'],
			'query' => $link['query'],
			'fragment' => $link['fragment'],
			'html' => 'true')) ."</li>\n";
  }

  return $output . "</ul>\n";
}


/**
 * Custom function for the tabs div
 */

function phptemplate_menu_local_tasks() {
  $output = '';
  if ($primary = menu_primary_local_tasks()) {
    $output .= "\n\t\t<div class='tabs_back'>\n\t\t\t<div class='list_back'>\n\t\t\t\t<ul class=\"tabs primary\">\n". $primary ."\t\t\t\t</ul>\n\t\t\t</div>\n\t\t</div>";
  }

  return $output;
}


/**
 * Regions defined/used by this theme.
 * Note that by introducing a custom region, the default-ones have to be explicitly written, too.
 * @return Associative array containing names descriptions of the regions.
 */
function oxymoron_regions() {
  return array(
    'header' => t('header'),
    'left' => t('left sidebar'),
    'content' => t('content'),
    'right' => t('right sidebar'),
    'footer' => t('footer'),
    'origo_left_footer' => t('origo footer'),
  );
}

function oxymoron_search_theme_form($form) {
  // remove the label from the search box ("Search this site")
  unset($form['search_theme_form']['#title']);  // remove label text
  // unset($form['submit']);                       // remove submit button

  return drupal_render($form);
}

function oxymoron_preprocess_search_block_form(&$vars, $hook) {
  // Remove the title of the search form
  unset($vars['form']['search_block_form']['#title']);

  // Rebuild the rendered version (search form only, rest remains unchanged)
  unset($vars['form']['search_block_form']['#printed']);
  $vars['search']['search_block_form'] = drupal_render($vars['form']['search_block_form']);

  // Collect all form elements to make it easier to print the whole form.
  $vars['search_form'] = implode($vars['search']);
}

/**
 * Converts a string to a suitable html ID attribute.
 * - Preceeds initial numeric with 'n' character.
 * - Replaces space and underscore with dash.
 * - Converts entire string to lowercase.
 * - Works for classes too!
 *
 * @param string $string
 *  the string
 * @return
 *  the converted string
 */
function zen_id_safe($string) {
  if (is_numeric($string{0})) {
    $string = 'n'. $string;
  }
  return strtolower(preg_replace('/[^a-zA-Z0-9-]+/', '-', $string));
}