Χρήστης:Geraki/recentchangesbox.js

/* New changes box */
var rcp_http;
var rcp_enabled;
var rcp_num_pages;
var rcp_refresh;


/* initalise */
function rcp_init() {

  if( !document.getElementById('p-logo') ) return;

  // allow user settings through
  if(rcp_enabled == null) {
    rcp_enabled = false;
  }
  if(rcp_num_pages == null) {
    rcp_num_pages = 10;
  }
  if(rcp_refresh == null) {
    rcp_refresh = 5;
  }

  // A few limits to be nice to the servers
  if (rcp_num_pages > 50) {
    rcp_num_pages = 50;
  }
  if (rcp_num_pages < 1) {
    rcp_num_pages = 1;
  }
  if (rcp_refresh < 2) {
    rcp_refresh = 2;
  }

  // get our cookie
  if (document.cookie.length > 0) {
    var c_start = document.cookie.indexOf("rcp_show_box=");
    if (c_start != -1) { 
      c_start = c_start + 13; 
      var c_end = document.cookie.indexOf(";", c_start);
      if (c_end == -1) {
        c_end = document.cookie.length;
      }

      if (document.cookie.substring(c_start, c_end) == "yes") {
        rcp_enabled = true;
      } else {
        rcp_enabled = false;
      }
    } 
  }

  // Either make a request or show nothing
  if (rcp_enabled == true) {
    rcp_ajax_request();
  } else {
    rcp_draw_disabled_box();
  }
}

/* init ajax */
function rcp_create_request() {
  try {
    rcp_http = new XMLHttpRequest();

  } catch (e) {
    try {
      rcp_http = new ActiveXObject("Msxml2.XMLHTTP");
    } catch (e) {
      try {
        rcp_http = new ActiveXObject("Microsoft.XMLHTTP");
      } catch (e) {
        alert("Your browser does not support AJAX");
        return false;
      }
    }
  }

  rcp_http.onreadystatechange = function() {
    if(rcp_http.readyState == 4) rcp_ajax_response();
  }

  return true;
}

/* make a request */
function rcp_ajax_request() {
  // check we are enabled
  if (rcp_enabled == false) return;

  // firstly, inform the user
  var cur_box = document.getElementById('p-recentchanges');
  if (cur_box != null) {
    cur_box.firstChild.firstChild.data = 'Πρόσφατες Αλλαγές (ενημερώνεται)';
  }

  if (rcp_create_request () == false) {
    if (cur_box != null) {
      cur_box.firstChild.firstChild.data = 'Πρόσφατες Αλλαγές (ενημέρωση απέτυχε)';
    } else {
      alert ("There seems to be a problem using the RecentChangePatrol script. It can't make AJAX objects.");
    }
  }

  // Then make the request
  rcp_http.open("GET", mw.config.get('wgServer') + mw.config.get('wgScriptPath') + "/api.php?action=query&list=recentchanges" +
    "&format=xml&rcnamespace=0&rcshow=!bot&rclimit=" + rcp_num_pages, true);
  rcp_http.send(null);
}

/* we have received a response */
function rcp_ajax_response() {

  var items = rcp_http.responseXML.getElementsByTagName('rc');

  // create the div that holds all the recentchanges links
  var link_div = document.createElement('div');
  link_div.className = 'body pBody';
  var list = document.createElement('ul');
  link_div.appendChild(list);

  // populate the list with 10 links.
  for (var i = 0; i < items.length; i++) {
    var item_name = items[i].getAttribute('title');
    var item_url = mw.config.get('wgServer') + mw.config.get('wgScript') + '?diff=cur&oldid=prev&title=' + encodeURIComponent(item_name);

    a = document.createElement('a');
    a.setAttribute('href', item_url);
    a.appendChild(document.createTextNode(item_name));

    var li = document.createElement('li');
    li.appendChild(a);
    list.appendChild(li);
  }

  // Container div
  var div = document.createElement('div');
  div.setAttribute('id', 'p-recentchanges');
  div.className = 'portal portlet';
  div.setAttribute('role', 'navigation');
  var heading = document.createElement('h3');
  if( mw.config.get('skin') == 'vector' ) heading.setAttribute('style', 'display: block');
  heading.appendChild(document.createTextNode('Πρόσφατες αλλαγές'));
  div.appendChild(heading);
  div.appendChild(link_div);

  // disable link
  var p = document.createElement('p');
  p.style.fontSize = 'x-small';
  p.style.margin = '0px';
  p.style.textAlign = 'right';
  a = document.createElement('a');
  a.setAttribute('style', 'cursor: pointer');
  a.appendChild(document.createTextNode('απενεργοποίηση πλαισίου'));
  a.onclick = rcp_disable_box;
  p.appendChild(a);
  link_div.appendChild(p);

  // now replace the div
  var old_div = document.getElementById('p-recentchanges');
  if (old_div != null) {
    old_div.parentNode.replaceChild(div, old_div);
  } else {
    var node = document.getElementById('p-logo');
    node.parentNode.insertBefore(div, node.nextSibling);
  }

  // and do it again in some seconds
  setTimeout(rcp_ajax_request, rcp_refresh * 1000);
}

function rcp_disable_box() {
  rcp_enabled = false;
  rcp_draw_disabled_box();
  document.cookie = "rcp_show_box=no; path=/";
}

function rcp_enable_box() {
  rcp_enabled = true;
  document.cookie = "rcp_show_box=yes; path=/";
  rcp_ajax_request();
}

function rcp_draw_disabled_box() {
  // Container div
  var link_div = document.createElement('div');
  link_div.className = 'body pBody';
  var div = document.createElement('div');
  div.setAttribute('id', 'p-recentchanges');
  div.className = 'portal portlet';
  div.setAttribute('role', 'navigation');
  var heading = document.createElement('h3');
  if( mw.config.get('skin') == 'vector' ) heading.setAttribute('style', 'display: block');
  heading.appendChild(document.createTextNode('Πρόσφατες αλλαγές'));
  div.appendChild(heading);
  div.appendChild(link_div);

  // enable link
  var p = document.createElement('p');
  p.style.fontSize = 'x-small';
  p.style.margin = '0px';
  var a = document.createElement('a');
  a.setAttribute('style', 'cursor: pointer');
  a.appendChild(document.createTextNode('Ενεργοποίηση πλαισίου'));
  a.onclick = rcp_enable_box;
  p.appendChild(a);
  link_div.appendChild(p);

  // now replace the div
  var old_div = document.getElementById('p-recentchanges');
  if (old_div != null) {
    old_div.parentNode.replaceChild(div, old_div);
  } else {
    var node = document.getElementById('p-logo');
    node.parentNode.insertBefore(div, node.nextSibling);
  }
}

rcp_refresh = 10;

$( rcp_init );