103 lines
3.2 KiB
JavaScript
103 lines
3.2 KiB
JavaScript
// ==UserScript==
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// @name Tildes with "Newest reply"
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// @namespace blankie-scripts
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// @match https://tildes.net/*
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// @version 1.0.2
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// @author blankie
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// @description A userscript that adds a "newest reply" to topics on Tildes
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// @inject-into content
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// @run-at document-end
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// ==/UserScript==
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"use strict";
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function commentSortKey(li) {
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// Set `li` to the most nested reply
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while (true) {
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let reply = li.querySelector(".comment-tree-item");
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if (!reply) {
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break;
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}
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li = reply;
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}
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return new Date(li.querySelector(".comment-header .comment-posted-time").dateTime);
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}
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function sortCommentsByNewestReply(ol = null, sortedCommentTrees = null) {
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ol = ol || document.querySelector("#comments");
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sortedCommentTrees = sortedCommentTrees || new WeakSet();
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let comments = [];
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for (let li of ol.children) {
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let commentTree = li.querySelector(".comment-tree");
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if (!commentTree || sortedCommentTrees.has(commentTree)) {
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continue;
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}
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sortedCommentTrees.add(commentTree);
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sortCommentsByNewestReply(commentTree, sortedCommentTrees);
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comments.push(li);
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}
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comments.sort(function(lhs, rhs) {
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// `rhs - lhs` sorts by reverse chronological order, while `lhs - rhs`
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// sorts by chronological order
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return commentSortKey(rhs) - commentSortKey(lhs);
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});
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for (let li of comments) {
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ol.append(li);
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}
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}
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function sortFormSubmitHook(event) {
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event.preventDefault();
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let searchParams = new URLSearchParams(location.search);
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let sortMethod = event.target.querySelector("select").selectedOptions[0].value;
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if (sortMethod === "newest_reply") {
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searchParams.delete("comment_order");
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searchParams.set("b_comment_order", "newest_reply");
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history.pushState(null, "", `?${searchParams.toString()}`);
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sortCommentsByNewestReply();
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} else {
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searchParams.delete("b_comment_order");
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searchParams.set("comment_order", sortMethod);
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location.search = searchParams.toString();
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}
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}
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function addNewestReply() {
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let form = document.querySelector(".topic-comments-header form");
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if (!form) {
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return;
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}
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let searchParams = new URLSearchParams(location.search);
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let bCommentOrder = searchParams.get("b_comment_order");
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let select = form.querySelector("select");
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let newSelect = select.cloneNode(true);
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newSelect.removeAttribute("data-js-autosubmit-on-change");
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newSelect.addEventListener("change", function() {
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// Auto-submit only if there is no "OK" button
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if (!form.querySelector("button[type=submit]")) {
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form.requestSubmit();
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}
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});
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let option = document.createElement("option");
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option.value = "newest_reply";
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option.innerText = "newest reply";
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if (bCommentOrder === "newest_reply") {
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option.selected = true;
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}
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newSelect.append(option);
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select.replaceWith(newSelect);
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form.addEventListener("submit", sortFormSubmitHook);
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}
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addNewestReply();
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if ((new URLSearchParams(location.search)).get("b_comment_order") === "newest_reply") {
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sortCommentsByNewestReply();
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} |