Switches word wrapping for comments on github.com
// ==UserScript==
// @name github-pre
// @namespace gihubpre
// @description Switches word wrapping for comments on github.com
// @author Mak Alexey (S-ed, Sedokun)
// @include http://github.com/*
// @include https://github.com/*
// @version 0.150605.3
// @grant none
// @license MIT License
// ==/UserScript==
// if Local Storage used, uncomment to reset default setting or type line in console
// localStorage.removeItem("wrapDefault")
// wrapDefault = true; if no Local Storage available, will enable word wrapping by default
// will reset on script update obviously
var wrapDefault = false;
preCSS = '\
.preButtonDiv {\
cursor: pointer;\
display: block;\
right: 0px;\
margin: 5px 35px 0 0;\
position: absolute;\
width: 16px;\
height: 16px;\
line-height: 16px;\
border-radius: 8px;\
text-align: center;\
transition: .5s;\
}\
.comment-body .preButtonDiv{\
margin-right: 20px\
}\
.preButtonDiv:hover {\
transition: .3s;\
background-color: #ccc;\
}'
if(typeof(localStorage) !== "undefined") {
wrapDefault = localStorage.getItem("wrapDefault");
if( wrapDefault == null ){
if(confirm("github-pre userscript:\nWould You like to set word wrapping to 'enabled' by default?")){
wrapDefault = true;
} else wrapDefault = false;
localStorage.setItem("wrapDefault", wrapDefault);
}
} else console.log("Sorry, no Session Storage Available\n\
Hardcoded 'wrapDefault' variable will be used instead (edit script to set)");
var preStyleSheet = document.createElement("style");
preStyleSheet.type = "text/css";
preStyleSheet.appendChild(document.createTextNode(preCSS));
document.head.appendChild(preStyleSheet);
document.addEventListener("DOMContentLoaded", initGithubPre);
function initGithubPre(){
document.removeEventListener("DOMContentLoaded", initGithubPre);
var preCollection = document.querySelectorAll(".markdown-body pre");
for (var i = 0; i < preCollection.length; ++i) {
addPreButton(preCollection[i]);
if (wrapDefault) preCollection[i].firstChild.style.whiteSpace = "pre-wrap";
}
}
function addPreButton(element){
var preButtonDiv = document.createElement("div");
var preButtonText = document.createTextNode("▾");
preButtonDiv.appendChild(preButtonText);
preButtonDiv.className = "preButtonDiv";
element.parentNode.insertBefore(preButtonDiv, element);
preButtonDiv.addEventListener("click", switchPreStyle, false);
}
function switchPreStyle(){
var pre = this.nextSibling.firstChild.style;
pre.whiteSpace = (pre.whiteSpace != "pre-wrap")?"pre-wrap":"pre";
}