Avoid getting caught by long threads in a discussion.
当前为
// ==UserScript==
// @name Bounded Bikeshed
// @description Avoid getting caught by long threads in a discussion.
// @author Tim Kuijsten
// @license ISC
// @namespace netsend.nl
// @supportURL https://github.com/timkuijsten/BoundedBikeshed
// @match https://news.ycombinator.com/item?id=*
// @match https://lobste.rs/s/*
// @match https://tweakers.net/*/*
// @grant none
// @version 0.4.1
// ==/UserScript==
// Copyright (C) 2023 Tim Kuijsten
//
// Permission to use, copy, modify, and/or distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice appear in all copies.
//
// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
// REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
// AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
// INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
// LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
// OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
// PERFORMANCE OF THIS SOFTWARE.
(function() {
"use strict";
var activatethresh = 10;
var showSubcommentCount = true;
var showDescendantCount = true; // default userscript to showing the number of descendants
// returns the number of descendants of "comment"
function hidesubcommentsLobsters(comment) {
var descendants = 0;
// first li.comments_subtree is the reaction form and not an existing comment
if (comment.querySelector(".details") == null) {
return descendants;
}
var subcomments = comment.querySelectorAll(":scope > ol.comments > li.comments_subtree");
if (subcomments.length == 0) {
return descendants;
}
subcomments.forEach(function(subcomment) {
descendants++;
descendants += hidesubcommentsLobsters(subcomment);
});
var el = document.createElement("span");
el.textContent = "| ";
var subel = document.createElement("span");
subel.style.cursor = "pointer";
var cstr = "comments";
if (descendants === 1) {
cstr = "comment";
}
if (showSubcommentCount) {
subel.textContent = subcomments.length;
if (showDescendantCount && descendants - subcomments.length > 0) {
subel.textContent += "+" + (descendants - subcomments.length);
}
subel.textContent += " " + cstr;
} else {
subel.textContent = cstr;
}
el.appendChild(subel);
comment.querySelector(".details .byline").appendChild(el);
var subcommentcontainer = comment.querySelector(":scope > ol.comments");
(function(scc) {
var visible = false;
subel.addEventListener("click", function() {
if (visible) {
scc.remove();
} else {
comment.appendChild(scc);
}
visible = !visible;
});
})(subcommentcontainer);
subcommentcontainer.remove();
return descendants;
}
// returns the number of descendants of "comment"
function hidesubcommentsTweakers(comment) {
var descendants = 0;
var subcomments = comment.querySelectorAll(":scope > twk-reaction");
if (subcomments.length == 0) {
return descendants;
}
subcomments.forEach(function(subcomment) {
subcomment.style.display = "none";
descendants++;
descendants += hidesubcommentsTweakers(subcomment);
});
// Depending on the user selected moderation filter, some comments are collapsed and have no footer until it is
// fetched with a separate GET after the user unfolds the comment. This also sometimes happens when connecting from
// the Tor network.
var footer = comment.querySelector(":scope > .reactieBody > .reactieFooter");
if (footer == null) {
footer = document.createElement("div");
footer.classList.add("reactieFooter");
comment.querySelector(".reactieBody").append(footer);
}
var el = document.createElement("a");
el.style.cursor = "pointer";
el.style.marginRight = "12px";
el.textContent = "Reacties";
if (showSubcommentCount) {
el.textContent += " (" + subcomments.length;
if (showDescendantCount && descendants - subcomments.length > 0) {
el.textContent += "+" + (descendants - subcomments.length);
}
el.textContent += ")";
}
footer.prepend(el);
(function togglesub(scc) {
var visible = false;
el.addEventListener("click", function() {
if (visible) {
scc.querySelectorAll(":scope > twk-reaction").forEach(function(el) {
el.style.display = "none";
});
} else {
scc.querySelectorAll(":scope > twk-reaction").forEach(function(el) {
el.style.display = "";
});
}
visible = !visible;
});
})(comment);
return descendants;
}
function HNaddbutton(comment, subgroup, descendants) {
var el = document.createElement("span");
el.textContent = "| ";
var subel = document.createElement("span");
subel.style.cursor = "pointer";
var cstr = "comments";
if (descendants === 1) {
cstr = "comment";
}
if (showSubcommentCount) {
subel.textContent = subgroup.length;
if (showDescendantCount && descendants - subgroup.length > 0) {
subel.textContent += "+" + (descendants - subgroup.length);
}
subel.textContent += " " + cstr;
} else {
subel.textContent = cstr;
}
el.append(subel);
comment.querySelector("span.comhead").append(el);
(function togglesub(sg) {
subel.addEventListener("click", function() {
var nextcomment = sg[0];
if (nextcomment.classList.contains("noshow")) {
// only show direct sub-comments
sg.forEach(function(el) {
el.classList.remove("noshow");
});
} else {
// collapse all
for (var i = descendants; i > 0; i--) {
nextcomment.classList.add("noshow");
nextcomment = nextcomment.nextElementSibling;
}
}
});
})(subgroup);
}
// returns the number of descendants of "comment"
function hidesubcommentsHN(comment) {
var indent = Number(comment.querySelector("td.ind").getAttribute("indent"));
var curindent;
var nextcomment = comment.nextElementSibling;
var subgroup = [];
var descendants = 0;
while (nextcomment) {
// if not a descendant, return
// if not a child, recurse
// else add to group of childs
var tdind = nextcomment.querySelector("td.ind");
if (tdind == null) {
if (subgroup.length > 0) {
HNaddbutton(comment, subgroup, descendants);
}
return descendants;
}
curindent = Number(tdind.getAttribute("indent"));
if (curindent <= indent) {
if (subgroup.length > 0) {
HNaddbutton(comment, subgroup, descendants);
}
return descendants;
}
// curindent > indent
nextcomment.classList.add("noshow");
if (curindent > indent + 1) {
var r = hidesubcommentsHN(nextcomment.previousElementSibling);
while (r--) {
nextcomment = nextcomment.nextElementSibling;
descendants++;
}
continue;
}
// curindent == indent + 1
subgroup.push(nextcomment);
nextcomment = nextcomment.nextElementSibling;
descendants++;
}
if (subgroup.length > 0) {
HNaddbutton(comment, subgroup, descendants);
}
return descendants;
}
function main() {
var allcomments;
switch (window.location.hostname) {
case "news.ycombinator.com":
allcomments = document.querySelectorAll("table.comment-tree tr.comtr");
if (allcomments.length >= activatethresh) {
allcomments.forEach(function(comment) {
if (comment.querySelector("td[indent='0']")) {
hidesubcommentsHN(comment);
}
});
}
break;
case "lobste.rs":
allcomments = document.querySelectorAll("li.comments_subtree");
// first li.comments_subtree is the reaction form and not an existing comment
if (allcomments.length - 1 >= activatethresh) {
document.querySelectorAll("body > * > ol.comments > li.comments_subtree").forEach(hidesubcommentsLobsters);
}
break;
case "tweakers.net":
allcomments = document.querySelectorAll("twk-reaction");
if (allcomments.length >= activatethresh) {
document.querySelectorAll("#reactieContainer > twk-reaction").forEach(hidesubcommentsTweakers);
}
break;
}
}
// check if we're running as an extension for firefox or chrome with stored preferences, or as a userscript
var s;
if (typeof browser !== "undefined") {
// firefox
s = browser.storage;
} else if (typeof chrome !== "undefined") {
// chrome
s = chrome.storage;
}
if (s != null) {
var f1 = s.sync.get("activationThreshold").then(function(res) {
if (Object.hasOwn(res, "activationThreshold") && typeof res.activationThreshold === "number") {
activatethresh = res.activationThreshold;
}
});
var f2 = s.sync.get("showSubcommentCount").then(function(res) {
if (Object.hasOwn(res, "showSubcommentCount") && typeof res.showSubcommentCount === "boolean") {
showSubcommentCount = res.showSubcommentCount;
}
});
var f3 = s.sync.get("showDescendantCount").then(function(res) {
if (Object.hasOwn(res, "showDescendantCount") && typeof res.showDescendantCount === "boolean") {
showDescendantCount = res.showDescendantCount;
} else {
showDescendantCount = false; // disable by default when executing as an extension
}
});
Promise.all([ f1, f2, f3 ]).then(main).catch(function(err) {
console.error(err);
});
} else {
main();
}
})();