dangeru-catalog/dangeru.user.js

102 lines
2.9 KiB
JavaScript

// ==UserScript==
// @name danger/u/ catalog
// @namespace https://niles.xyz
// @include http://boards.dangeru.us/*
// @include https://boards.dangeru.us/*
// @version 1.0
// @grant GM_getValue
// @grant GM_setValue
// @run-at document-end
// ==/UserScript==
var started = false;
var onload = function () {
// Only start once
if (started) {
return;
}
started = true;
var href = document.location.href;
href = href.substr(0, href.lastIndexOf("/"));
var board = href.substr(href.lastIndexOf("/") + 1);
var as = document.getElementsByTagName("a");
for (var i = 0; i < as.length; i++) {
var a = as[i];
if (a.href.indexOf("thread.php") < 0) {
continue;
}
var idx = a.href.indexOf("thread.php");
while (a.href[idx] != "=") idx++;
var id = a.href.substr(idx + 1);
var titlekey = board + ":" + id + ":title";
var saved_title = GM_getValue(titlekey, id);
if (a.innerHTML.trim().length === 0) {
a.innerHTML = "<span style='color: grey;'>Thread " + saved_title + " deleted</span>";
continue;
}
GM_setValue(titlekey, a.innerHTML.trim());
the_fn(board, a, id);
}
};
var the_fn = (function the_fn(board, a, id) {
var elem = document.createElement("span");
a.appendChild(elem);
elem.innerHTML = "Loading...";
var xmlHttp = new XMLHttpRequest();
xmlHttp.onreadystatechange = function() {
if(xmlHttp.readyState == 4 && xmlHttp.status == 200) {
var jsontext = xmlHttp.responseText;
jsontext = jsontext.replace(/(?:\r\n|\r|\n)/g, " ");
var idx = jsontext.indexOf("https://boards.dangeru.us/static");
while (jsontext[idx] != '}') idx++;
var b = jsontext.slice(0, idx) + '"' + jsontext.slice(idx);
var key = board + ":" + id;
var oldreplies = GM_getValue(key, 0);
try {
var json = JSON.parse(b);
var replies = json.replies.length;
if (oldreplies < replies) {
elem.innerHTML = "<span style='color:red;'>+" + (replies - oldreplies) + "</span>";
// we have to wrap this in a closure because otherwise it clicking any post would only update the last post processed in this loop
the_other_fn(key, replies, a, elem);
} else {
elem.innerHTML = "<span style='color: grey;'>" + replies + "</span>";
}
} catch (e) {
elem.innerHTML = "Error.";
console.log(e);
}
}
};
xmlHttp.open("GET", "https://boards.dangeru.us/api.php?type=thread&board=" + board + "&ln=250&thread=" + id, true); // true for asynchronous
xmlHttp.send(null);
});
var the_other_fn = (function(key, replies, a, elem) {
a.addEventListener("click", function() {
GM_setValue(key, replies);
elem.innerHTML = "<span style='color: grey;'>" + replies + "</span>";
});
});
// In chrome, the userscript runs in a sandbox, and will never see these events
// Hence the run-at document-end
//document.addEventListener('DOMContentLoaded', onload);
//document.onload = onload;
// One of these should work, and the started variable should prevent it from starting twice (I hope)
function GM_main() {
onload();
}
onload();