// ==UserScript==
// @name           No Pop-up Links
// @namespace      http://www.mittineague.com/dev/
// @description    Changes pop-up links to regular links
// @include        *
// @exclude     http://www.mittineague.com/blog/wp-admin/*
// ==/UserScript==
 
/*
 * No Pop-up Links -  nopopuplinks.user.js version 1.6
 * Author: Mittineague <N/A> (N/A) http://www.mittineague.com
 *
 * script hosted at http://www.mittineague.com/dev/nopopuplinks.user.js
 * and can be found at http://userscripts.org/scripts/show/5273
 *
 * Change Log
 * version 1.0 - August 23, 2006
 * version 1.1 - August 23, 2006  // added removal of target="_blank"
 * version 1.2 - August 30, 2006  // added removal of scripted pop-ups, added option vars
 * version 1.3 - September 1, 2006  // made "target" "blank" only for frame functionality
 * version 1.4 - September 3, 2006  // added open = null for external scripts
 *          // added form target="_blank"
 * version 1.5 - October 8, 2006  // regex improvement, added '-' and '_'
 * version 1.6 - November 15, 2006  // added (function(){ [CODE] })();
 * 
 * FEEDBACK REQUESTED
 * If anyone using this script finds a pop-up link (other than CSS hide -> display)
 * that is not nullified please leave a comment at http://www.mittineague.com/cont.php
 * 
 * To Do - Restore link functionality to scripted pop-ups
 *
 * This script searches for "window.open" in every anchor
 * It will work for pop-ups in these formats:
 *   <a href="javascript:window.open ....
 *   <a href="#" onclick="window.open ....
 *  <a .... target="_blank"
 *
 * The above alone does not prevent scripted pop-ups. That is, those techniques which
 * do not have "window.open" in the link, but rather in a script that's either called
 * from the link or an event handler, such as:
 *  <a href="javascript:functionName ....
 *  <a href="#" onclick="functionName ....
 *  <a class="X ....
 *  Setting this option to "true" - BREAKS LINK - unless URL is in href
 *
 * The link regular expression logic (case-insensitive) is as follows:
 *   any or no character  ~  followed by
 *   window.open(' or window.open("  ~  followed by
 *   http:// or https:// or not  ~  followed by
 *   www. or not  ~  followed by
 *   any one or more letters, numbers, forward slashes or periods  ~  up to
 *   the first character that is a hash, question mark, quote or white-space
 *
 * Note: The link will be stripped of any GET variables or anchor hashes
 *  eg. page.html?var=val will become page.html
 *  page.html#top will become page.html
 *
 *  If the pop-up is attempting to open multiple windows the link will be the first.
 *  eg. window.open{"one.html","","");window.open{"two.html","",""); will become one.html
 *
 *  New functions with "window.open" removed from their content are appended to the body
 *  to over-ride any loaded during onload. - MAY BREAK LINK
 *
 *  nullify_all "true" will over-ride ALL scripted "open"s - MAY BREAK LINK
 *  This is not as defensive as turning off javascript. But it's close.
 *
 *  form_targets "true" prevents form result "_blank"s
 *
 *  *** There are some instances where the use of a pop-up is justified.
 *  eg. instructions for a multi-page form, maps, click for larger image, etc.
 *  This script can be customized by adding sites to the @exclude above
 *  or by setting various PREFERENCE OPTIONS to "false"
 */
 
(function(){
 
/* PREFERENCE OPTIONS */
var remove_href_popups = "true"; // <a href="javascript:window.open ....
var remove_event_popups = "true"; // <a href="#" onclick="window.open ....
var remove_target_popups = "true"; // <a .... target="_blank"
var remove_script_popups = "true"; // all "in-page" script pop-ups - MAY BREAK LINK
var nullify_all = "true"; // nullifies open in all scripts (external too) - MAY BREAK LINK
var form_targets = "true"; // for <form .. target="_blank"
/* END OF PREFERENCE OPTIONS */
 
var allLinks, thisLink, L_att_vals, L_attr;
var allScriptTags, target_string;
var allForms, thisForm, F_att_vals, F_attr;
 
var expression = /(.)*(window\.open\([\'|\"])(https?\:\/\/)?(www\.)?([-_A-Z0-9\/\.]+[^#|?|\'|\"|\s])*/gi;
 
allLinks = document.evaluate(
      '//a',
      document,
      null,
      XPathResult.UNORDERED_NODE_SNAPSHOT_TYPE,
      null
      );
  for (var i = 0; i < allLinks.snapshotLength; i++)
  {
    thisLink = allLinks.snapshotItem(i);
    L_att_vals = thisLink.attributes;
    for (var j = 0; j < L_att_vals.length; j++)
    {
      L_attr = L_att_vals[j].value;
        if((L_att_vals[j].name == "href") && L_attr.match(expression) && (remove_href_popups == "true"))
      {
        thisLink.setAttribute("href", RegExp.$3 + RegExp.$4 + RegExp.$5);
      }
        if((L_att_vals[j].name != "href") && L_attr.match(expression) && (remove_event_popups == "true"))
      {
        thisLink.setAttribute("href", RegExp.$3 + RegExp.$4 + RegExp.$5);
        thisLink.setAttribute(L_att_vals[j].name, "");
      }
        if((L_att_vals[j].name == "target") && L_attr.match(/_blank/gi) && (remove_target_popups == "true"))
      {
        thisLink.setAttribute(L_att_vals[j].name, "_self");
      }
 
    }
  }
 
if(remove_script_popups == "true")
{
allScriptTags = document.evaluate(
      '//script',
      document,
      null,
      XPathResult.UNORDERED_NODE_SNAPSHOT_TYPE,
      null
      );
  for (var k = 0; k < allScriptTags.snapshotLength; k++)
  {
    target_string = allScriptTags.snapshotItem(k).innerHTML;
    if(target_string.match(/window\.open/gi))
    {  
      target_string = target_string.replace(/window\.open/gi, "");  
      var new_script_tag = document.createElement('script');
      new_script_tag.setAttribute("type","text/javascript");
      new_script_tag.innerHTML = target_string;
      document.body.appendChild(new_script_tag);
    }
  }
}
 
if(nullify_all == "true")
{
  var nulling_script_tag = document.createElement('script');
  nulling_script_tag.setAttribute("type","text/javascript");
  nulling_script_tag.innerHTML = "open = null;"
  document.body.appendChild(nulling_script_tag);
}
 
if(form_targets == "true")
{
allForms = document.evaluate(
      '//form',
      document,
      null,
      XPathResult.UNORDERED_NODE_SNAPSHOT_TYPE,
      null
      );
  for (var m = 0; m < allForms.snapshotLength; m++)
  {
    thisForm = allForms.snapshotItem(m);
    F_att_vals = thisForm.attributes;
    for (var n = 0; n < F_att_vals.length; n++)
    {
      F_attr = F_att_vals[n].value;
      if((F_att_vals[n].name == "target") && F_attr.match(/_blank/gi))
      {
        thisForm.setAttribute(F_att_vals[n].name, "_self");
      }
    }
  }
}
 
})();