Github Word Wrapping for CODE blocks

Switches word wrapping for CODE blocks in comments on github.com
Verze ze dne 06. 06. 2015. Zobrazit nejnovější verzi.
Zeptejte se na otázku, přidejte recenzi nebo skript nahlašte.
Wrap lines
// ==UserScript==
// @name        Github Word Wrapping for CODE blocks
// @namespace   gihubpre
// @description Switches word wrapping for CODE blocks in comments on github.com
// @author		Mak Alexey (S-ed, Sedokun)
// @include     http://github.com/*
// @include     https://github.com/*
// @version     0.150606.3
// @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.warn("Sorry, no Local 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";
}