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Linkification of text links.
// ==UserScript==
// @name 4chan Linkify
// @namespace csimi
// @author csimi
// @description Linkification of text links.
// @homepage http://userscripts.org/users/156405/scripts
// @version 2.0.5
// @icon http://i.imgur.com/JHVzK.png
// @include http://boards.4chan.org/*
// @include https://boards.4chan.org/*
// @grant GM_registerMenuCommand
// @grant GM_getValue
// @grant GM_setValue
// @grant GM_deleteValue
// ==/UserScript==
(function () {
var self = {
ready: function () {
var MutationObserver;
if (MutationObserver = window.MutationObserver || window.WebKitMutationObserver || window.OMutationObserver) {
observer = new MutationObserver(function (mutations) {
mutations.forEach(function (mutation) {
for (var i = 0; i < mutation.addedNodes.length; i++) {
self.check(mutation.addedNodes[i]);
}
});
});
observer.observe(self.qs('body'), {
childList: true,
subtree: true
});
}
else {
document.addEventListener('DOMNodeInserted', function (event) {
self.check(event.target);
}, false);
}
var func = function () {
self.incrementalize(self.qsa('.board > .thread > .postContainer'));
};
if (document.readyState == 'loading') {
document.addEventListener('DOMContentLoaded', func, false);
}
else func();
if (typeof GM_registerMenuCommand == 'function' && typeof GM_getValue == 'function' && typeof GM_setValue == 'function' && typeof GM_deleteValue == 'function') {
var menucommand = function () {
if (!GM_getValue('blank')) {
GM_setValue('blank', true);
alert('Links now open in a blank window.');
}
else {
GM_deleteValue('blank');
alert('Links don\'t open in a blank window anymore.');
}
};
GM_registerMenuCommand('4chan Linkify toggle blank window', menucommand, '');
}
},
qs: function (a, b) {
return (b || document).querySelector(a);
},
qsa: function (a, b) {
return (b || document).querySelectorAll(a);
},
check: function (node) {
if (node.nodeType && node.nodeType == 1 && node.classList.contains('postContainer')) {
var bq = self.qs('blockquote', node);
if (!bq || !bq.parentNode || !bq.childNodes || !bq.childNodes.length) return;
for (var i = 0; i < bq.childNodes.length; i++) {
self.process(bq.childNodes[i]);
}
}
if (node.nodeType && node.nodeType == 1 && node.nodeName.toLowerCase() == 'blockquote') {
for (var i = 0; i < node.childNodes.length; i++) {
self.process(node.childNodes[i]);
}
}
},
create: function (s) {
node = document.createElement('a');
node.className = 'chanlinkify';
node.href = s;
node.appendChild(document.createTextNode(s));
if (typeof GM_getValue == 'function' && GM_getValue('blank')) node.target = '_blank';
return node;
},
next: function (node) {
if (!node.nextSibling) return;
if (node.nextSibling.nodeName.toLowerCase() == 'wbr') {
node.appendChild(node.nextSibling);
}
var sib = node.nextSibling;
if (sib && sib.nodeType == 3) {
var m = sib.nodeValue.match(/^[^\s]+/);
if (!m) return;
var s = m[0];
node.href = node.textContent+s;
node.appendChild(document.createTextNode(s));
if (sib.nodeValue.length == s.length) {
node.parentNode.removeChild(sib);
}
else {
sib.nodeValue = sib.nodeValue.substring(s.length);
}
self.next(node);
}
},
process: function (node) {
if (node.nodeType == 1 && node.childNodes.length && (node.classList.contains('quote') || node.nodeName.toLowerCase() == 's')) return self.process(node.childNodes[0]);
if (node.nodeType != 3) return;
var m;
m = node.nodeValue.match(/[a-zA-Z][a-zA-Z0-9+-.]+:\/\/[^\s]+/);
if (!m) m = node.nodeValue.match(/mailto:[^\s]+/);
if (!m) m = node.nodeValue.match(/magnet:[^\s]+/);
if (!m) m = node.nodeValue.match(/news:[^\s]+/);
if (m && node.parentNode.nodeName.toLowerCase() != 'a') {
var s = m[0];
var a = self.create(s);
if (node.nodeValue.length == s.length) {
node.parentNode.replaceChild(a, node);
}
else {
var pos = node.nodeValue.indexOf(s);
if (pos != 0) node.parentNode.insertBefore(document.createTextNode(node.nodeValue.substring(0, pos)), node);
node.parentNode.insertBefore(a, node);
node.nodeValue = node.nodeValue.substring(pos+s.length);
if (!node.nodeValue) node.parentNode.removeChild(node);
}
self.next(a);
}
},
incrementalize: function (nodes) {
var i = 0;
var func = function () {
for(var j = 0; i < nodes.length; i++, j++) {
self.check(nodes[i]);
if (j == 10) break;
}
if (i < nodes.length) window.setTimeout(func, 10);
};
func();
},
};
self.ready();
})();