@ Sam: Sí, yo estaba tratando de la misma:
// ==UserScript==
// @name Stack Overflow highlight viewed questions
// @namespace *
// @include http://stackoverflow.com/questions
// @include http://stackoverflow.com/questions?*
// @include http://stackoverflow.com/questions
// @include http://stackoverflow.com/questions?*
// @version 0.55 (DOM-Ready instead of onload)
// ==/UserScript==
(function() {
// Customizable items
// var fav_tags = ["python", "database", "mysql"]; // Your favorite tags
const UNSEEN_BACK_COLOR = "rgb(225,210,210)"; // Backcolor for the question already seen
const FAV_TAG_BACK_COLOR = "rgb(210,210,225)"; // Backcolor for the favorite tags
// Internal to the DOM
// const QUESTION_URL = "http:\/\/stackoverflow.com\/questions\/([0-9]+)\/";
const QUESTION_URL = "http:\/\/stackoverflow.com\/questions\/([0-9]+)\/";
const TAG_PREFIX = "show questions tagged ";
const SEEN_MARK = "x";
//
var seen_q = [];
var seen_q_str = "";
var seen_q_str = GM_getValue ("seen_q", "");
var seen_q = seen_q_str.split("|");
var fav_tags_str = GM_getValue ("fav_tags", "")
var fav_tags = fav_tags_str.split(" ")
var already_run = false;
GM_registerMenuCommand ("Set favorite tags", askTags);
// window.addEventListener ("DOMContentLoaded", doStuff, false);
if (! doStuff()) {
window.addEventListener ("load", doStuff, false);
}
function doStuff() {
var elements = window.document.getElementsByTagName('A');
if (! elements || already_run) {
return false;
} else {
already_run = true;
}
GM_log ("here");
for (elem = 0; elem < elements.length; elem++) {
if (elements[elem].href.match (QUESTION_URL)) {
curr_q = RegExp.$1;
// Already seen?
if ((seen_q.length < curr_q) || (seen_q [curr_q] != SEEN_MARK)) {
elements[elem].style.backgroundColor = UNSEEN_BACK_COLOR;
seen_q [curr_q] = SEEN_MARK;
}
// Is a favorite tag?
node = elements[elem].parentNode.parentNode;
for (tag = 0; tag <= fav_tags.length; tag++) {
if (node.innerHTML.match ("'" + fav_tags[tag] + "'")) {
node.style.backgroundColor = FAV_TAG_BACK_COLOR;
break;
}
}
// return (0);
}
}
seen_q_str = seen_q.join("|");
GM_setValue ("seen_q", seen_q_str);
return true;
}
function askTags() {
fav_tags_str = prompt("Favorite tags (separated by spaces)", fav_tags_str);
GM_setValue ("fav_tags", fav_tags_str)
}
})();
El uso de Firefox 3.6 pre-lanzamiento, que estaba tratando de escribir un script de usuario sencilla para colorear los anuncios orientados horizontalmente en la búsqueda de Google como solían ser (hice clic en un enlace para llevarme a una página patrocinada por la industria del gas cuando buscaba "gasland") y no funcionó. Luego probé la respuesta principal: addEventListener para el evento 'load', y funcionó. –