There are 13 previous versions of this script.
// ==UserScript==
// @name AdBlock+
// @author Lex1
// @version 1.1.4
// @run-at document-start
// @include *
// @description AdBlock+ for Chrome. Press Alt+B for blocking ads and Alt+U for unblocking. Press Alt+E for editing styles.
// @namespace http://ruzanow.ru/index/0-4
// ==/UserScript==
// Released under the GPL license
// http://www.gnu.org/copyleft/gpl.html
(function(){
var style, enabled = false, prefix = 'ujs_adblock', none = '{display: none !important;}';
var getValue = function(name){
if(window.localStorage){
return window.localStorage[name] || '';
}
else{
var nameEQ = name+'=';
var ca = document.cookie.split(';');
for(var i = 0, c; c = ca[i]; i++){
while(c.charAt(0) == ' ')c = c.substring(1, c.length);
if(c.indexOf(nameEQ) == 0)return unescape(c.substring(nameEQ.length, c.length));
};
return '';
}
};
var setValue = function(name, value, days){
if(window.localStorage){
window.localStorage[name] = value;
}
else{
var date = new Date();
date.setTime(date.getTime()+((days || 10*365)*24*60*60*1000));
if(document.cookie.split(';').length < 30 && document.cookie.length-escape(getValue(name)).length+escape(value).length < 4000){
document.cookie = name+'='+escape(value)+'; expires='+date.toGMTString()+'; path=/';
}
else{
alert('Cookies is full!');
}
}
};
var addStyle = function(css){
var s = document.createElement('style');
s.setAttribute('type', 'text/css');
s.setAttribute('style', 'display: none !important;');
s.appendChild(document.createTextNode(css));
return (document.getElementsByTagName('head')[0] || document.documentElement).appendChild(s);
};
var replaceStyle = function(ele, css){
if(ele){
if(ele.firstChild)ele.removeChild(ele.firstChild);
ele.appendChild(document.createTextNode(css));
}
};
var splitCss = function(css){
var rez = [];
css.replace(/(([\w#:.~>+()\s-]+|\*|\[.*?\])+)\s*(,|$)/g, function(s, m){rez.push(m.replace(/^\s+|\s+$/g, ''))});
return rez;
};
var clearCss = function(css){
var a = splitCss(css);
for(var i = a.length-1; i >= 0; i--){
var rule = a[i]+'>';
for(var j = a.length-1; j >= 0; j--){
if(a[j].indexOf(rule) == 0)a.splice(j, 1);
}
};
return a.join(',');
};
var delCss = function(css, del){
var a = splitCss(css);
if(del){
for(var i = a.length-1; i >= 0; i--){
if(del.indexOf(a[i]) == 0)a.splice(i, 1);
}
}
else{
a.pop();
};
return a.join(',');
};
var getAtt = function(el, tags){
var rez = '';
if(el.attributes){
var r = new RegExp('^('+tags+')$');
for(var i = 0, a; a = el.attributes[i]; i++){
var n = a.nodeName.toLowerCase();
if(r.test(n))rez += '['+n+'=\x22'+a.nodeValue.replace(/[\x22\x5C]/g, '\\$&')+'\x22]';
}
};
return rez;
};
var getNth = function(el){
var nth, n = 0, p = el.parentNode;
for(var i = 0, c; c = p.childNodes[i]; i++){if(c.nodeType == 1){n++; if(c == el)nth = n}};
return (!nth || n < 2) ? '' : ':nth-child('+nth+')';
};
var getCssRules = function(el, wide){
var att, tag, rez = [];
while(el){
if(el.nodeType == 1){
att = getAtt(el, 'src') || getAtt(el, 'href');
tag = el.nodeName;
if(att){
rez.unshift(tag+(wide ? att.replace(/^(\[\w+)(=\x22[^?#]+\/).*(\x22\])$/, '$1^$2$3') : att));
break;
}
else{
rez.unshift(tag+getAtt(el, 'id|class|height|width|color|bgcolor|align|type')+((wide || /^(html|body)$/i.test(tag)) ? '' : getNth(el)));
}
};
el = el.parentNode;
};
return rez.join('>');
};
var setBlockStyle = function(){
if(document.documentElement instanceof HTMLHtmlElement){
var css = getValue(prefix);
if(css)style = addStyle(css+none);
return true;
}
};
var editStyles = function(){
var rez = prompt('Please, edit styles:', getValue(prefix));
if(rez != null){
setValue(prefix, rez);
if(rez)rez += none;
if(style){replaceStyle(style, rez)}else{style = addStyle(rez)};
}
};
var unblockEle = function(latest){
var css = getValue(prefix);
if(enabled || !style || !css)return;
var remove = function(){
document.removeEventListener('click', click, false);
document.removeEventListener('keyup', press, false);
enabled = false;
};
var click = function(ev){
ev.preventDefault();
var oldCss = getValue(prefix);
var css = delCss(oldCss, getCssRules(ev.target, false));
if(css == oldCss)css = delCss(oldCss, getCssRules(ev.target, true));
if(css != oldCss){
setValue(prefix, css);
replaceStyle(style, css ? css+none : '');
remove();
}
};
var press = function(ev){
if(ev.keyCode == 27){
var css = getValue(prefix);
replaceStyle(style, css ? css+none : '');
remove();
}
};
if(latest){
css = delCss(css);
setValue(prefix, css);
replaceStyle(style, css ? css+none : '');
}
else{
enabled = true;
replaceStyle(style, css+'{background-color: #FF5555 !important; border: 2px solid #FF1111 !important; opacity: 0.7 !important;}');
document.addEventListener('click', click, false);
document.addEventListener('keyup', press, false);
}
};
var blockEle = function(wide){
if(enabled)return;
var ele = '', outline = '', border = '', bgColor = '', title = '', reObjects = /^(iframe|object|embed)$/i;
var remove = function(){
document.removeEventListener('mouseover', over, false);
document.removeEventListener('mouseout', out, false);
document.removeEventListener('click', click, false);
document.removeEventListener('keyup', press, false);
enabled = false;
};
var over = function(ev){
ele = ev.target;
title = ele.title;
ele.title = 'Tag: '+ele.nodeName+(ele.id ? ', ID: '+ele.id : '')+(ele.className ? ', Class: '+ele.className : '');
if(reObjects.test(ele.nodeName)){
border = ele.style.border;
ele.style.border = '2px solid #306EFF';
}
else{
outline = ele.style.outline;
ele.style.outline = '1px solid #306EFF';
bgColor = ele.style.backgroundColor;
ele.style.backgroundColor = '#C6DEFF';
}
};
var out = function(){
if(ele){
ele.title = title;
if(reObjects.test(ele.nodeName)){
ele.style.border = border;
}
else{
ele.style.outline = outline;
ele.style.backgroundColor = bgColor;
}
}
};
var click = function(ev){
if(ele){
ev.preventDefault();
out();
remove();
var css = getCssRules(ele, wide || ev.altKey);
var tmpCss = addStyle(css+'{background-color: #FF5555 !important; border: 1px solid #FF1111 !important; opacity: 0.7 !important;}');
css = prompt('Block this element(s)?', css);
if(css){
var oldCss = getValue(prefix);
if(oldCss)css = clearCss(oldCss+','+css);
setValue(prefix, css);
if(style){replaceStyle(style, css+none)}else{style = addStyle(css+none)};
};
tmpCss.parentNode.removeChild(tmpCss);
}
};
var press = function(ev){
if(ev.keyCode == 27){
out();
remove();
}
};
enabled = true;
document.addEventListener('mouseover', over, false);
document.addEventListener('mouseout', out, false);
document.addEventListener('click', click, false);
document.addEventListener('keyup', press, false);
};
// Set style at loading page
window.setTimeout(setBlockStyle, 1);
// Hotkeys
document.addEventListener('keydown', function(e){
if(!e.shiftKey && !e.ctrlKey && e.altKey){
switch(e.keyCode){
// Edit styles with Alt+E
case 69: editStyles(); break;
// Unblock elements with Alt+U
case 85: unblockEle(); break;
// Block element with Alt+B
case 66: blockEle(); break;
// Unblock latest element with Alt+L
case 76: unblockEle(true); break;
// Block elements (don't use nth-child) with Alt+W
case 87: blockEle(true); break;
}
}
}, false);
// For buttons
// unsafeWindow.navigator.ujs_adblock = {block: blockEle, edit: editStyles, unblock: unblockEle};
})();
