User:TheJosh/Scripts/RecentChangesPatrol.js

var rcp_http;

var rcp_enabled;

var rcp_num_pages;

var rcp_refresh;

$( rcp_init );

/* initalise */

function rcp_init() {

// 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 = 'Recent Changes (updating)';

}

if (rcp_create_request () == false) {

if (cur_box != null) {

cur_box.firstChild.firstChild.data = 'Recent Changes (update failed)';

} else {

alert ("There seems to be a problem using the RecentChangePatrol script. I can't make AJAX objects, so I'm just going to complain. God Bless!");

}

}

// Then make the request

rcp_http.open("GET", "http://en.wikipedia.org/w/api.php?action=query&list=recentchanges&format=xml&rcnamespace=0&rcshow=!bot&rcshow=!minor&rclimit=" + rcp_num_pages, true);

rcp_http.send(null);

}

/* we have received a response */

function rcp_ajax_response() {

var items = rcp_http && rcp_http.responseXML ? rcp_http.responseXML.getElementsByTagName('rc') : [];

// create the div that holds all the recentchanges links

var link_div = document.createElement('div');

link_div.className = '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 = 'http://en.wikipedia.org/w/index.php?diff=cur&oldid=prev&title=' + escape(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 = 'portlet';

var heading = document.createElement('h5');

heading.appendChild(document.createTextNode('Recent Changes'));

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.appendChild(document.createTextNode('disable this box'));

a.onclick = rcp_disable_box;

p.appendChild(a);

link_div.appendChild(p);

// now replace the div

var old_div = document.getElementById('p-recentchanges');

var side_col = document.getElementById('column-one');

if (old_div != null) {

side_col.replaceChild(div, old_div);

} else {

var node = document.getElementById('p-search');

side_col.insertBefore(div, node);

}

// and do it again in 5 secs

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 = 'pBody';

var div = document.createElement('div');

div.setAttribute('id', 'p-recentchanges');

div.className = 'portlet';

var heading = document.createElement('h5');

heading.appendChild(document.createTextNode('Recent Changes'));

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.appendChild(document.createTextNode('enable this box'));

a.onclick = rcp_enable_box;

p.appendChild(a);

link_div.appendChild(p);

// now replace the div

var old_div = document.getElementById('p-recentchanges');

var side_col = document.getElementById('column-one');

if (old_div != null) {

side_col.replaceChild(div, old_div);

} else {

var node = document.getElementById('p-search');

node.parentNode.insertBefore(div, node);

}

}