There are 13 previous versions of this script.
// ==UserScript== -*- coding:utf-8 -*-
// @name Fold comments
// @namespace http://code.google.com/p/ecmanaut/
// @url http://userscripts.org/scripts/source/19344.user.js
// @description Folds comments and the like by XPath expressions.
// @require http://ecmanaut.googlecode.com/svn/trunk/lib/gm/$x$X.js
// @require http://ecmanaut.googlecode.com/svn/trunk/lib/addmetainfo.js
// @include http://*
// ==/UserScript==
var debug = GM_getValue("debug", false);
var wpcomments = ['id("comments")','following-sibling::*[last()]','../ol/li'];
var lolsumptin = {
comment:['id("comments")',
'following-sibling::*[not(.//textarea)][last()]',
'//div[starts-with(@id,"div-comment-")]']
};
// Map site name to fold handlers. Indices mark what to fold, values how. The
// array lists xpath expressions to start (and optional end point, if another
// node) of what to fold, the optional third argument an expression used to
// count (and show) how many somethings were folded. Both latter expressions
// may be relative to the start node. (Alternatetively, an array with a single
// element enumerating all comments can be given, from which first, last and
// count expressions will be generated.)
var data = {
"blog.wired.com":{
comment:['//div[@class="comment"]'],
categorie:['//img[contains(@src,"RRheadings/hed_categories")]',
'following-sibling::div[1]', 'following-sibling::div/div/ul/li']
},
"\\.wordpress\\.com$":{
comment:['id("comments")','id("respond")/preceding-sibling::*[1]',
'following-sibling::dl[@class]/dd']
},
"intertwingly.net":{
comment:['id("comments")','following-sibling::*[@class="comment"][last()]',
'following-sibling::*[@class="comment"]']
},
"blog.jonudell.net":{ comment:wpcomments },
"www.schneier.com":{
comment:['//div[@class="commentform"]','following-sibling::div[last()]',
'//div[@class="commentbody"]'],
"archived link":['//h3[.="Recent Entries"]','following-sibling::ul[3]',
'../ul/li']
},
"webkit.org":{
comment:wpcomments,
"archive link":['//li[@class="subtitle" and .="Archives"]',
'following-sibling::li[last()]',
'following-sibling::li']
},
"userscripts.org":{
comment:['//table[@class="comments posts wide"]',,'tbody/tr[@id]']
},
"www.antiwar.com":{
comment:['id("comments")', '//div[contains(@class,"commentlist")]',
'..//div[not(@id="addcomment") and starts-with(@class,"comment")]']
},
"www.guardian.co.uk":{
"related article":['id("related-info")/h2',
'id("related-articles")',
'id("related-articles")/ul/li']
},
"www.independent.co.uk":{
comment:['//div[@id="comments"]',,
'.//div[@class="comments-body"]//div[@class="comment-body"]']
},
"ejohn.org":{
comment:['id("comments")','id("commentlist")','id("commentlist")/li']
},
"radaronline.com":{
comment:['//div[@class="entry-footer"]',,'.//div[@class="commentBody"]']
},
"www.expressen.se":{
article:['(id("article")/following-sibling::*)[1]',
'following-sibling::*[last()]',
'../div[starts-with(@class,"slot ")]'],
block:['id("rightcol")',,'div[starts-with(@class,"block")]'],
left:['id("nav-wrap")',,'.//div[@class="contentpush"]']
},
"www.vk.se":{
snippet:['//div[@class="column_tertiary"]',,'h5'],
comment:['//h2[.="Kommentarer"]','(following-sibling::div)[1]',
'//table[@class="commenttable"]'],
teaser:['//div[@class="teaser"]','(//div[@class="teaser"])[last()]',
'//div[@class="teaser"]'],
telegram:['//div[@class="column_secondary"]',,'ul/li'],
blahblah:['//div[@class="column_tertiary last"]'],
menuitem:['id("mainmenu")','//ul[@class="submenu"]','li']
},
"\\.theoildrum\\.com$":{
comment:['id("comments")','id("footer")','.//div[@class="comment"]']
},
"www.okcupid.com":{
visitee:['id("lsRecent")','id("lsRecentContent")',
'id("lsRecentContent")/a'],
favorite:['id("lsFavorites")','id("lsFavoritesContent")']
//'id("lsFavoritesContent")/ul[not(@style)]/li']
},
"paulgraham.com":{
note:['//b[.="Notes"]',
'//a[starts-with(@name,"f")][last()]/following-sibling::br[1]',
'../a[starts-with(@name,"f")]'],
comment:['id("dsq-comments-count")',
'id("dsq-pagination")',
'//*[@class="dsq-comment"]']
},
"www.codinghorror.com":{
comment:['//div[@class="comments-head"]',
'//div[@class="comments-body"][last()-1]',
'//div[@class="comments-body"][position()<last()]']
},
"\\.blogspot\\.com$":{
comment:['id("comments")',,'id("comments-block")//dt[starts-with(@id,"c")]']
},
"www.antipope.org":{
comment:['id("comments")',,'div[@class="comment"]']
},
"blogg.aftonbladet.se":{
comment:['id("comments")/h2','../dl[last()]','../dl']
},
"tianmi.info":{
comment:['//*[name()="h3" and .="Kommentarer:"]',
'//*[name()="a" and @name="form"]',
'//*[name()="div" and @class="comment"]'],
"old post":['//*[name()="h3"][*[@src="/blogge/img/artiklar.png"]]',
'../*[name()="p"][following-sibling::*[1][name()="div"][*[name()="form"]]]',
'../*[name()="p" and not(@class)][not(preceding-sibling::*[name()="div"][*[name()="form"]])]'],
"left column filler":['//*[parent::*[@class="vänster"]][2]',
'//*[parent::*[@class="vänster"]][last()]',
'//*[parent::*[@class="vänster"]][position()>1]'],
"right column filler":['//*[parent::*[@class="höger"]][5]',
'//*[parent::*[@class="höger"]][last()]',
'//*[parent::*[@class="höger"]][position()>4]']
},
"www.techcrunch.com":{
//trackback:['id("trackbacks")','following-sibling::div',]
trackback:['(//ol[@class="commentlist"])[1]',,'li'],
comment:['(//ol[@class="commentlist"])[2]',,'li']
//comment:['//ol[@class="commentlist"][preceding::h3[.="Comments"]]',,'li']
},
"pogue.blogs.nytimes.com":{
comment:['id("blog_comments")',,'ul/li']
},
"blog.brokep.com":{
comment:['id("comments")/h3','following::dl','id("comment_list")/dt']
},
"www.fourhourworkweek.com":{
comment:['id("comments")',,'id("comment_list")/*']
},
"hackademix.net":{
comment:['id("comments")','following::ol','(following::ol)[1]/li']
},
"adblockplus.org":{
comment:['id("comment")','following::ol','(following::ol)[1]/li']
},
"extjs.com":{
comment:['id("comments")','following::ol','(following::ol)[1]/li']
},
"dilbert.com":{
comment:['//div[@class="CMT_CommentList"]',,'div']
},
"icanhascheezburger.com":lolsumptin,
"totallylookslike.com":lolsumptin,
"punditkitchen.com":lolsumptin,
"engrishfunny.com":lolsumptin,
"onceuponawin.com":lolsumptin,
"ihasahotdog.com":lolsumptin,
"roflrazzi.com":lolsumptin,
"graphjam.com":lolsumptin,
"failblog.org":lolsumptin,
"code.google.com": {
comment:['id("commentlist")//*[@class="artifactcomment"]']
},
"blog.chromium.org": {
comment:['id("comments")',,'id("comments")//dt[starts-with(@id,"c")]']
},
"vimeo.com":{
comment:['//ul[@id and @class="comments"]',,'//ul[@id and @class="comments"]/li[@class]/a[@name]']
}
};
var togglers = []; // all fold/unfold functions
var divs = []; // all folded sections
var host = location.hostname.toLowerCase();
var hide = data[host];
if (hide)
debug && console.info("Folding to rule %x: %x", host, hide);
else
for (var re in data)
if (/[^a-z0-9.-]/i.test(re) &&
(host.match(re) ||
/^xn--/.test(host) && IDNAtoASCII(host).match(re))) {
hide = data[re];
debug && console.info("Folding to regexp rule %x: %x", re, hide);
break;
}
try {
for (var unit in hide) {
var args = hide[unit];
if (args.length == 1 && $x(args[0]).length > 0) {
args[2] = args[0]; // count
args[1] = '('+ args[0] +')[last()]';
}
args[3] = unit;
fold.apply( this, args );
}
} catch(e) {}
if (divs.length) {
document.body.addEventListener("click", unfoldOnIntraLinkClick, true);
}
function IDNAtoASCII(hostname) {
var a = document.createElement("a");
a.href = "http://" + hostname + "/";
return a.hostname;
}
function unfoldOnIntraLinkClick(e) {
function unfoldFolded(div, n, all) {
if (div) {
togglers[n](!!"unfold");
}
}
var a = $X('ancestor-or-self::a[1]', e.target);
if (a) {
debug && console.log("Unfold %s", a.hash);
hasAnchor(a.hash).forEach(unfoldFolded);
}
}
function getYPos(node, y) {
y = (y || 0) + node.offsetTop;
if (node.offsetParent)
return getYPos(node.offsetParent, y);
return y;
}
function hasAnchor(hash, div) {
function hasId(root) {
return $x('count(.//*[@id="'+ id +'" or @name="'+ id +'"])', root) && root;
}
function hasXPath(root) {
var node = $X(xp);
var root_contains_node = 1<<4;
return (root.compareDocumentPosition(node) & root_contains_node) ? 1 : 0;
}
if (!hash) return [0];
var haystack = div ? [div] : divs;
var id = (hash || "").replace(/^#/, "");
var xp = /^xpath:(.*)/i.match(id);
if (xp) {
xp = decodeURIComponent(xp[1]);
return haystack.map(hasXPath);
}
return haystack.map(hasId);
}
// Seeks out the start and end node, folds the content (including the start and
// end node) and annotates the folded section with the count and type of things
// it purportedly contains, as well as how many (vertical) pagefuls it spanned.
//
// As a bonus, it uses the "count" XPath expression to mark up the page with the
// part of the pagination microformat that tracks items. (This makes my keyboard
// shortcuts script feeding off of those able to key through a comment at a time
// when unfolded, without shifting eye focus much, making skimming much easier.)
function fold( from, to, countXPath, unit ) {
var r = document.createRange();
var f = typeof from == "string" ? $X( from ) : from;
var t = typeof to == "string" ? $X( to, f ) : to || f;
var p = f.parentNode;
var count = countXPath ? $x(countXPath, f).length : "";
if (debug) {
console.info("Folding %d %x to %x; %scommon parent", count, f, t,
p==t.parentNode ? "" : "un");
}
if (count === 0) return null;
if (!f || !t || f.parentNode != t.parentNode)
throw new Error(!f?"No from node":!t?"No to node":"Different parent nodes");
addMeta("items-xpath", countXPath);
r.setStartBefore(f);
r.setEndAfter(t);
var dy = getYPos(t) + t.offsetHeight - getYPos(f);
var pagefuls = Math.round(dy / innerHeight);
var div = document.createElement("div");
r.surroundContents(div);
var title = "Toggle "+ count +" "+ (unit || "comment") + (count==1?"":"s");
if (pagefuls > 0)
title += " ("+ pagefuls +" pageful"+ (pagefuls==1?"":"s") +")";
addToggleBefore(title, div, null, div);
var toggler = addToggleBefore(title, p, div, div);
if (!hasAnchor(location.hash, div)[0]) toggler(); // fold unless referenced
togglers.push(toggler);
divs.push(div);
return div;
}
function addToggleBefore(title, p, node, div) {
function toggle(state) {
if ("boolean" != typeof state)
state = !!div.style.display;
div.style.display = state ? "" : "none";
}
var a = document.createElement("a");
a.addEventListener("click", toggle, false);
a.style.cursor = "pointer";
a.innerHTML = title;
p.insertBefore(a, node);
return toggle;
}
