/**
 * Allows users to quote posts without a page reloading
 *
 * @copyright Copyright (C) 2008 PunBB
 * @license http://www.gnu.org/licenses/gpl.html GPL version 2 or higher
 * @package pun_quote
 */

var selNode = null;

function getSelectedText()
{
  try
  {
    var result = undefined;
    if (document.selection) //IE & Opera
    {
      selNode = document.selection.createRange().parentElement();
      
      var testNode = selNode;
      var flag = 1;
      
      while(flag == 1)
      {
        if ((testNode.parentNode.nodeName == 'BLOCKQUOTE'))
          testNode = testNode.parentNode.parentNode;
        else if ((testNode.parentNode.nodeName == 'LI'))
          testNode = testNode.parentNode;
        else if ((testNode.parentNode.nodeName == 'UL'))
          testNode = testNode.parentNode;
        else if ((testNode.nodeName == 'CODE'))
          testNode = testNode.parentNode.parentNode;
        else if ((testNode.nodeName == 'CITE'))
          testNode = testNode.parentNode;
        else if ((testNode.nodeName == 'EM'))
          testNode = testNode.parentNode;
        else if ((testNode.nodeName == 'STRONG'))
          testNode = testNode.parentNode; 
        else if ((testNode.nodeName == 'SPAN'))
          testNode = testNode.parentNode;
        else
          flag = 0;
      }

      if ((testNode.parentNode.className == 'entry-content') && (testNode.className != 'sig-content'))
        result = document.selection.createRange().text;
    }
    else if (document.getSelection) //FF
    {
      selNode = window.getSelection().anchorNode.parentNode;

      var testNode = selNode;
      var flag = 1;

      while(flag == 1)
      {
        if ((testNode.parentNode.nodeName == 'BLOCKQUOTE'))
          testNode = testNode.parentNode.parentNode;
        else if ((testNode.parentNode.nodeName == 'LI'))
          testNode = testNode.parentNode;
        else if ((testNode.parentNode.nodeName == 'UL'))
          testNode = testNode.parentNode;
        else if ((testNode.nodeName == 'CODE'))
          testNode = testNode.parentNode.parentNode;
        else if ((testNode.nodeName == 'CITE'))
          testNode = testNode.parentNode;
        else if ((testNode.nodeName == 'EM'))
          testNode = testNode.parentNode;
        else if ((testNode.nodeName == 'STRONG'))
          testNode = testNode.parentNode;
        else if ((testNode.nodeName == 'SPAN'))
          testNode = testNode.parentNode;
        else
          flag = 0;
      }
      
      if ((testNode.parentNode.className == 'entry-content') && (testNode.className != 'sig-content'))
        result = document.getSelection();
    }
    else if (window.getSelection) //Google Chrome & Safari
    {
      selNode = window.getSelection().anchorNode.parentNode;
      
      var testNode = selNode;
      var flag = 1;
      
      while(flag == 1)
      {
        if ((testNode.parentNode.nodeName == 'BLOCKQUOTE'))
          testNode = testNode.parentNode.parentNode;
        else if ((testNode.parentNode.nodeName == 'LI'))
          testNode = testNode.parentNode;
        else if ((testNode.parentNode.nodeName == 'UL'))
          testNode = testNode.parentNode;
        else if ((testNode.nodeName == 'CODE'))
          testNode = testNode.parentNode.parentNode;
        else if ((testNode.nodeName == 'CITE'))
          testNode = testNode.parentNode;
        else if ((testNode.nodeName == 'EM'))
          testNode = testNode.parentNode;
        else if ((testNode.nodeName == 'STRONG'))
          testNode = testNode.parentNode;
        else if ((testNode.nodeName == 'SPAN'))
          testNode = testNode.parentNode;
        else
          flag = 0;
      }

      if ((testNode.parentNode.className == 'entry-content') && (testNode.className != 'sig-content'))
        result = window.getSelection();
    }
    else
      return result;
  }
  catch(err)
  {
    result = undefined;
  }

  return result;
}

function QuickQuote(qid_param)
{
  var selected_text = getSelectedText();
  var quick_post_value = document.getElementsByName('req_message');
  if (selected_text == undefined || selected_text == '')
    quick_post_value[0].value += '[quote=' + pun_quote_authors[qid_param] + ']' + ParseMessage(pun_quote_posts[qid_param]) + '[/quote]';
  else
  {
    var post_content = ContentCleaning(ParseMessage(pun_quote_posts[qid_param]));
    var clean_selected_text = ContentCleaning(selected_text.toString());
    if (post_content.indexOf(clean_selected_text) != -1)
      quick_post_value[0].value += '[quote=' + pun_quote_authors[qid_param] + ']' + selected_text + '[/quote]';
    else
      quick_post_value[0].value += '[quote=' + pun_quote_authors[qid_param] + ']' + ParseMessage(pun_quote_posts[qid_param]) + '[/quote]';
  }
}

function Reply(qid_param, quote_link)
{
  var selected_text = getSelectedText().toString();
  if (selected_text == undefined || selected_text == '')
    return;

  var post_content = ContentCleaning(ParseMessage(pun_quote_posts[qid_param]));
  var clean_selected_text = ContentCleaning(selected_text);

  //Get Quote form
  var pun_quote_form = document.getElementById('pun_quote_form');
  if (post_content.indexOf(clean_selected_text) != -1)
  { 
    //Change quote message
    document.getElementById('post_msg').value = selected_text;
    //Change URL
    pun_quote_form.action = document.getElementById('pun_quote_url').value.replace('$2', qid_param.toString());
    pun_quote_form.submit();
  }
  else
    location = quote_link.href; 
}

function ParseMessage(string)
{
  var search_arr = new Array(/&/g, /"/g, /'/g, /</g, />/g);
  var replace_arr = new Array('&', '"', '\'', '<', '>');
  for (var replace_num = 0; replace_num < search_arr.length; replace_num++)
    string = string.replace(search_arr[replace_num], replace_arr[replace_num]);

  return string;
}

function ContentCleaning(string)
{
  //\n\r, \n, \r 
  string = string.replace(/(\n\r|\n|\r){1,}/gi,' ');
  //trim message
  string = string.replace(/^\s+|\s+$/g, '');
  //more than 1 space
  string = string.replace(/\s{1,}/gi, ' ');
  return string;
}