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PrimeGrid racers by team

Enhances PrimeGrid.com challenge top_users pages. Search by team, see nearby teams, click to see their stats, copyable URLs.

// ==UserScript==
// @name        PrimeGrid racers by team
// @namespace   https://sites.google.com/site/kenscode/
// @include     http://www.primegrid.com/challenge/*/top_users.html*
// @include     https://www.primegrid.com/challenge/*/top_users.html*
// @version     1.0.1
// @description Enhances PrimeGrid.com challenge top_users pages.  Search by team, see nearby teams, click to see their stats, copyable URLs.
// @grant none
// ==/UserScript==

/*
Copyright (c) 2013-2014, Ken Brazier
All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:

1. Redistributions of source code must retain the above copyright notice, this
   list of conditions and the following disclaimer. 
2. Redistributions in binary form must reproduce the above copyright notice,
   this list of conditions and the following disclaimer in the documentation
   and/or other materials provided with the distribution.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/

// From http://stackoverflow.com/questions/646611/programmatically-selecting-partial-text-in-an-input-field
function createSelection(field, start, end) {
  if( field.createTextRange ) {
    var selRange = field.createTextRange();
    selRange.collapse(true);
    selRange.moveStart('character', start);
    selRange.moveEnd('character', end-start);
    selRange.select();
  } else if( field.setSelectionRange ) {
    field.setSelectionRange(start, end);
  } else if( field.selectionStart ) {
    field.selectionStart = start;
    field.selectionEnd = end;
  }
  field.focus();
}

function setTeam(teamname) {
  document.getElementById('teamin').value = teamname.toLowerCase();
  grepteams(null);
  return false;
}

function setThisTeam() { setTeam(this.innerHTML); return false; }

function listTeams() {
  var table = document.getElementsByTagName('table')[1];
  var teamIndex = 0;
  var grep = document.getElementById('teamin').value.toLowerCase();
  table.rows[0].cells[1].innerHTML = 'Team (click to view)';
  for(var i=1; i < table.rows.length; i++) {
    var thisLink = table.rows[i].cells[1].childNodes[0];
    if(thisLink.innerHTML.substr(0,grep.length).toLowerCase() == grep) {
      if(teamIndex != 0) return; // Fail if multiple teams are found.  Shouldn't happen.
      teamIndex = i;
    }
    table.rows[i].style.display = 'none';
  }
  //alert("Listing teams around "+teamIndex);
  if(teamIndex == 0) return;
  var lastTeam = teamIndex + parseInt(document.getElementById('teamcountaft').value);
  if(lastTeam >= table.rows.length) lastTeam = table.rows.length-1;
  var firstTeam = teamIndex - parseInt(document.getElementById('teamcountbef').value);
  if(firstTeam < 1) firstTeam = 1;
  //alert("Listing teams "+firstTeam+' to '+lastTeam);
  for(var i=firstTeam; i <= lastTeam; i++) {
    table.rows[i].style.display = '';
    var thisLink = table.rows[i].cells[1].childNodes[0];
    if(thisLink.href.substr(0,1) != '#') {
      // Set up each link to display that team's members, and ranking.
      thisLink.href = '#'+escape(thisLink.innerHTML.toLowerCase());
      thisLink.addEventListener('click', setThisTeam, false);
    }
  }
  document.getElementById('teamlist').style.display = '';
}


function grepteams(e) {
  var table = document.getElementsByTagName('table')[0];
  var grep = document.getElementById('teamin').value.toLowerCase();
  var matchstr = '';
  var teamsCount = 0;
  document.getElementById('teamlist').style.display = 'none';
  for(var i=1; i < table.rows.length; i++) {
    var isMatch = (table.rows[i].cells[2].childNodes[0].innerHTML.substr(0,grep.length).toLowerCase() == grep);
    // Exclude backspace, delete, and escape keys.
    if(isMatch && (e == null || (e.keyCode != 8 && e.keyCode != 46 && e.keyCode != 27))) {
      var newstr = table.rows[i].cells[2].childNodes[0].innerHTML.toLowerCase();
      if(matchstr == '') {
        matchstr = newstr;
        teamsCount = 1;
      } else {
        if(matchstr != newstr && matchstr != grep) {
          teamsCount++;
          // Find the first character where the strings differ, and cut matchstr to that.
          // e.g. 'neffer' and 'neffing' get cut to 'neff'.
          var matcharr = matchstr.split('');
          var newarr = newstr.split('');
          var j=grep.length;
          for(;j < newarr.length && j < matcharr.length; j++) {
            if(newarr[j] != matcharr[j]) break;
          }
          matchstr = matchstr.substr(0,j);
        }
      }
    }
    table.rows[i].style.display = (isMatch)?'':'none';
    //teamTotal += parseFloat(table.rows[i].cells[3].innerHTML);
  }
  if(matchstr.length > grep.length) {
    var teamin = document.getElementById('teamin');
    teamin.value = matchstr;
    createSelection(teamin, grep.length, matchstr.length);
  }
  if(teamsCount == 1) {
    if(document.getElementById('teamlist').innerHTML == '') {
      // Load the teams list.
      var req = new XMLHttpRequest();
      req.open('GET', document.URL.replace('users','teams'), true);
      req.onreadystatechange = function (oEvent) {
        if (req.readyState === 4 && req.status === 200) {
          var resp = req.responseText;
          resp = resp.substring(resp.indexOf('>',resp.indexOf('<body'))+1, resp.lastIndexOf('</body>'));
          document.getElementById('teamlist').innerHTML = resp;
          listTeams();
        }
      };
      req.send(null);
    } else {
      listTeams();
    }
  }
}

function validate_numeric(e) {
  this.value = this.value.replace(/[^\d]/,'');
}

function validate_numeric_onchange(e) {
  var val = this.value.replace(/[^\d]/,'');
  if(val == '') val = '0';
  this.value = val;
  if(document.getElementById('teamlist').style.display == '') listTeams();
}

// Create a div on the page for user inputs:
var teamdiv = document.createElement('div');
// Team grep section
var teamgrepdiv = document.createElement('div');
var teamin = document.createElement('input');
teamin.type = 'text';
teamin.id = 'teamin';
teamin.addEventListener('keyup', grepteams, false);
teamgrepdiv.appendChild(document.createTextNode('Find team '));
teamgrepdiv.appendChild(teamin);

// Team count section
var teamcountdiv = document.createElement('div');
var teamcountbef = document.createElement('input');
teamcountbef.id = 'teamcountbef';
teamcountbef.type = 'text';
teamcountbef.size = '2';
teamcountbef.value = '3';
teamcountbef.maxLength = '3';
teamcountbef.addEventListener('keyup', validate_numeric, false);
teamcountbef.addEventListener('blur', validate_numeric_onchange, false);
var teamcountaft = document.createElement('input');
teamcountaft.id = 'teamcountaft';
teamcountaft.type = 'text';
teamcountaft.size = '2';
teamcountaft.maxLength = '3';
teamcountaft.value = '3';
teamcountaft.addEventListener('keyup', validate_numeric, false);
teamcountaft.addEventListener('blur', validate_numeric_onchange, false);
// Place text around the fields.
teamcountdiv.appendChild(document.createTextNode('Show '));
teamcountdiv.appendChild(teamcountbef);
teamcountdiv.appendChild(document.createTextNode(' above and '));
teamcountdiv.appendChild(teamcountaft);
teamcountdiv.appendChild(document.createTextNode(' below'));

// Overall div
teamdiv.style.position = 'absolute';
teamdiv.style.left = '500px';
teamdiv.style.top = '16px';
teamdiv.appendChild(teamgrepdiv);
teamdiv.appendChild(teamcountdiv);


var teamlist = document.createElement('div');
teamlist.id = 'teamlist';
teamlist.style.display = 'none';

document.body.appendChild(teamdiv);
document.body.appendChild(teamlist);

// Look for a team name in the URL.
var hashPos = document.URL.indexOf('#');
if(hashPos > 0) {
  setTeam(unescape(document.URL.substr(hashPos+1)));
}