Initial commit

lainmod.user.js

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+// ==UserScript==
+// @name		lainmod
+// @namespace	https://niles.xyz
+// @include 	http://lainchan.org/*/catalog.html
+// @include 	https://lainchan.org/*/catalog.html
+// @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 as = $("#Grid .mix a");
+	for (var i = 0; i < as.length; i++) {
+		var a = as[i];
+		// I think this will always return true for "#Grid .mix a", but the selector used to be $("a") and it can't hurt
+		if (a.href.indexOf("/res/") != -1) {
+			a.href = a.href.replace("lainchan.org", "lainchan.org/mod.php?");
+		}
+	}
+
+
+	var rs = $("#Grid .mix");
+	for (i = 0; i < rs.length; i++) {
+		var r = rs[i];
+		var replies = parseFloat(r.children[0].children[1].children[0].innerHTML.replace("R: ", ""));
+		var href = r.children[0].children[0].href;
+		// I get the board for each post instead of just once at the beginning because of /mega/
+		var board = href.substr(0, href.lastIndexOf("/")); // like "https://lainchan.org/q/res"
+		board = board.substr(0, board.lastIndexOf("/")); // like "https://lainchan.org/q"
+		board = board.substr(board.lastIndexOf("/") + 1); // like "q"
+		var id = href.substr(href.lastIndexOf("/") + 1).replace(".html", ""); // like "1"
+		var key = board.concat(":".concat(id)); // like "q:1", just used for local storage
+		var oldreplies = GM_getValue(key, 0);
+		if (oldreplies < replies) {
+			r.children[0].children[1].children[0].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
+			(function(intkey, intreplies, intr) {
+				r.addEventListener("click", function() {
+					GM_setValue(intkey, intreplies);
+					//alert("clicked " + intkey);
+					intr.children[0].children[1].children[0].innerHTML = "Read all " + intreplies + " replies";
+				});
+			})(key, replies, r);
+		} else {
+			r.children[0].children[1].children[0].innerHTML = "Read all " + replies + " replies";
+		}
+	}
+};
+
+// 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();
+

readme.md

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+## Small userscript to browse lainchan more efficiently
+
+It has two main features. First, browsing any \*/catalog.html page and clicking on a post will take you to the mod.php page for that post.
+
+Second, it keeps track of how many replies a post has, and shows the number of new replies in red when there are new ones. It marks a post as fully read when you click on it in the catalog.