facetrash.js

function stringContainsAnyOfElements(string, elements){
    string = string.toLowerCase();
    for(var i = 0; i < elements.length; i++) {
        if(string.indexOf(elements[i]) != -1) {
            return true;
        }
    }
    return false;
}
 
var namesBlackListedWords = ["não", "nao", "piada", "riso", "rindo", "risada", "risadas", "fail", " em ", "apenas", "só", "frase", " e ", "mundo", " do ", " rir", " rir", " para ", " da ", "suado", " o ", " u ", " na ", " nas ", " nos ", "face", "humor", "meme", "intender", "fodace"];
var postBlackListedWords = ["9gag", "copie e cole", "compartilhe", "no seu mural", "BBB", "Big Brother", "meme", "risos"];
var postWhiteListedWords = ["facetrash", "face trash"];
var elementsToSearchForNames = [".uiStreamPassive", ".translationEligibleUserAttachmentMessage"];
 
function runFaceTrash() {
    alert("foo");
    if(document.URL.indexOf("facebook.com") == -1) {
        alert("Desculpe, o FaceTrash só funciona no Facebook.com.");
    } else {
        var postsToRemove = new Array();
         
        $(".uiUnifiedStory").each(function(){  
            var post = $(this);
            if(post && !stringContainsAnyOfElements(post.html(), postWhiteListedWords)) {
                if(stringContainsAnyOfElements(post.html(), postBlackListedWords)) {
                    postsToRemove.push(post);
                    post.css("background-color", "red");
                } else {
                    for(var i = 0; i < elementsToSearchForNames.length; i++) {
                        $(this).find(elementsToSearchForNames[i]).children().each(function(){
                            var text = $(this).text();
                            if(stringContainsAnyOfElements(text, namesBlackListedWords) && !stringContainsAnyOfElements(text, ["other friends"])) {
                                postsToRemove.push(post);
                                post.css("background-color", "red");
                            }
                        });
                    }
                }
            }
        });
         
        $('#globalContainer').prepend('<div id="scrollingDiv" style="font-size: 14px; position:absolute;z-index:100;background-color:#EFEFEF;" align="center"><b>FaceTrash by <a href="http://www.pedrofranceschi.com/" target="_blank">Pedro Franceschi</a><br/>(<a href="http://twitter.com/pedroh96" target="_blank">@pedroh96</a>)</b><br/>Posts marcados: ' + postsToRemove.length + ' (em vermelho)<br/><a id="faceTrashEraseLink">Apagar</a> | <a id="faceTrashCancelLink">Cancelar</a</div>');
         
        var $sidebar   = $("#scrollingDiv"),
            $window    = $(window),
            offset     = $sidebar.offset(),
            topPadding = $window.height()/2;
 
        $window.scroll(function() {
            if ($window.scrollTop() > offset.top) {
                $sidebar.stop().animate({
                    marginTop: $window.scrollTop() - offset.top + topPadding
                });
            } else {
                $sidebar.stop().animate({
                    marginTop: 0
                });
            }
        });
         
        $('#faceTrashEraseLink').live("click", function(){
            for(var i = 0; i < postsToRemove.length; i++) {
                postsToRemove[i].remove();
            }
            $("#scrollingDiv").remove();
        });
         
        $('#faceTrashCancelLink').live("click", function(){
            for(var i = 0; i < postsToRemove.length; i++) {
                postsToRemove[i].css("background-color", "white");
            }
            $("#scrollingDiv").remove();
        });
    }
};
 
if (typeof jQuery == 'undefined') {
    var jQ = document.createElement('script');
    jQ.type = 'text/javascript';
    jQ.onload=runFaceTrash;
    jQ.src = 'http://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js';
    document.body.appendChild(jQ);
} else {
    runFaceTrash();
}