Pagebar v2

/* -------------------------------------------------------------------------------------------- */
function transit($place) {
  global $pbOptions;
  if ($place>0)
    echo '<span class="break">'.$pbOptions["connect"].'</span>';
}
// -----------------------------------------------------------------------------
function replaceFirstLast($page) {
  global $pbOptions, $max_page;
  switch ($page) {
    case 1:         return $pbOptions['first'];
    case $max_page: return $pbOptions['last'];
    default:        return $page;          
  }
}
// -----------------------------------------------------------------------------
function tagReplace($text, $page) {
  global $max_page;


  $text = str_replace("{page}", $page, $text);
  $text = str_replace("{current}", $page, $text);
  $text = str_replace("{total}", $max_page, $text);
  return $text;
}
// -----------------------------------------------------------------------------
// display tooltips
function tooltip($page)
{
  global $pbOptions;
  if ($pbOptions["tooltips"])
    return ' title="' . tagReplace($pbOptions["tooltipText"], $page) .'"';
  return "";
}
// -----------------------------------------------------------------------------


function page($page) {
  global $pbOptions;
  
  echo tagReplace('<a href="' . get_pagenum_link($page) . '"' . tooltip($page) . ">" . 
               replaceFirstLast($page) . "</a>\n", $page);
}
// -----------------------------------------------------------------------------
function thisPage($page) {
  global $pbOptions;
  
  echo tagReplace('<span class="current">'.replaceFirstLast($page).
                  "</span>\n", $page);  
}
// -----------------------------------------------------------------------------
function previousPage($paged) {
  global $pbOptions;
  
  if ($pbOptions["pdisplay"] == "never")
    return;
  
  if ( ($paged==1) && ($pbOptions["pdisplay"] == "auto") )
    return;
 
  $text = $pbOptions["prev"];
  echo ($paged==1)?'<span class="inactive">'.$text."</span>\n":'<a href="'.
       get_pagenum_link($paged-1). '"' . tooltip($paged-1).'">'.$text."</a>\n";
}
// -----------------------------------------------------------------------------
function nextPage($paged,$max_page) {
  global $pbOptions;


  if ($pbOptions["pdisplay"] == "never")
    return;
  if ( ($paged==$max_page) && ($pbOptions["ndisplay"] == "auto") )
    return;
  $text = $pbOptions["next"];
  echo ($paged==$max_page)?'<span class="inactive">'.$text."</span>\n":'<a href="'.
       get_pagenum_link($paged+1).'"'.tooltip($paged+1).'">'.$text."</a>\n";
}
// -----------------------------------------------------------------------------


function wp_pagebar() {
    global $paged, $wp_query, $pbOptions,$max_page;


  if ($wp_query->is_feed) // no need for pagebar in feed
    return;


  $showAll = 0;
  $left    = $pbOptions["left"];
  $center  = $pbOptions["center"];
  $right   = $pbOptions["right"];


    if (is_single() || is_page())   //no need to display pagebar on a single post page
    return;
  
  $max_page = $wp_query->max_num_pages; // get number of pages. ONLY WP >= 2.1!!!
 
  if ($max_page <= 1)  // only one page -> don't display pagebar
    return;


  if (empty($paged))   // If we're on the first page the var $paged is not set.
      $paged = 1;
        
    echo '<div class="wp-pagenavi">';
      
  echo tagReplace($pbOptions["pbText"], $page) . '&nbsp;';
  
  // it's easy to show all page numbers:
  // simply loop and  exit
  if (($showAll) || ($max_page <= $left+$center+$right)) {
    previousPage($paged);
        for ($i=1;$i<=$max_page;$i++)
      ($i==$paged)?thisPage($i):page($i);
    nextPage($paged,$max_page);
    echo "</div>";
    return;
    } //if
  
  // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
  
  // left and right
  if ($paged<$left+$center) {
    //left
    previousPage($paged);
    $lc = $left+$center;
    for ($i=1;$i<=($lc);$i++)
      ($i==$paged)?thisPage($i):page($i);
      
    // right
    transit($right);
    for ($i=$max_page-$right+1;$i<=$max_page;$i++)
      page($i);
    nextPage($paged,$max_page);
  }
    
  // left, right and center
  else
  if ( ($paged>=$left+$center) && ($paged<$max_page-$right-$center+1) ) {
    //left
    previousPage($paged);
    for ($i=1;$i<=$left;$i++)
      page($i);
    transit($left);
 
    //center 
    $c = floor($center/2);
    for ($i=$paged-$c;$i<=$paged+$c;$i++)
     ($i==$paged)?thisPage($i):page($i);


    // right
    transit($right);
    for ($i=$max_page-$right+1;$i<=$max_page;$i++)
      page($i);
    nextPage($paged,$max_page);
  }
   
  // only left and right
  else {
    //left
    previousPage($paged);
    for ($i=1;$i<=$left;$i++)
      page($i);
    transit($left);


    // right
    for ($i=$max_page-$right-$center;$i<=$max_page;$i++)
    ($i==$paged)?thisPage($i):page($i);
    nextPage($paged,$max_page);
  }
  
  echo "</div>";    
    
          
} //function


/* --------------------------------------------------------------------------- */
function pb_admin_menu() {
  if (function_exists('add_options_page')) 
    add_options_page('Pagebar', 'Pagebar', 'manage_options', 'pagebar2/pboptions.php');
}
/* ---------------------------------------------------------------------------- */
function remove_nav() {
  echo "\n<style type=\"text/css\">.navigation{display: none;}</style>\n";
}
/* ---------------------------------------------------------------------------- */
function add_stylesheet() {
  global $pbOptions;


  if ($pbOptions["stylesheet"]=="styleCss")
    return;
  $url = get_bloginfo('stylesheet_directory') . '/' . $pbOptions["cssFilename"];
  echo "\n\t<link rel=\"stylesheet\" href=\"" . $url . '" ' . 
       "type=\"text/css\" media=\"screen\" />\n"; 
}
/* ---------------------------------------------------------------------------- */
function pagebar_init() {
  if (! get_option('pagebar'))
  
  add_option('pagebar', 
  array("left"=>3,"center"=>5,"right"=>3,  "pbText"=>"Pages:", "remove"=>"on",
        "standard"=>"{page}", "current"=>"{page}", "first"=>"{page}", "last"=>"{page}",
        "connect"=>"...","next"=>"Next","prev"=>"Prev",
        "tooltipText"=>"Page {page}", "tooltips"=>"on", "bef_loop"=>"", "aft_loop"=>"on", "footer"=>"",
        "pdisplay"=>"auto", "ndisplay"=>"auto", "stylesheet"=>"styleCss", "cssFilename"=>"pagebar.css"));
}
/* ---------------------------------------------------------------------------- */
{
  $pbOptions = get_option('pagebar');


  add_action('activate_pagebar2/pagebar2.php', 'pagebar_init');
 
  add_action('admin_menu', 'pb_admin_menu');
  add_action('wp_head', 'add_stylesheet');
  
  if ($pbOptions["bef_loop"]=="on")
    add_action('loop_start', 'wp_pagebar');
  if ($pbOptions["aft_loop"]=="on")
    add_action('loop_end', 'wp_pagebar');
  if ($pbOptions["footer"]=="on")
    add_action('wp_footer', 'wp_pagebar');
  if ($pbOptions["remove"]=="on")
    add_action('wp_head', 'remove_nav');
  } //main
?>