Last active
September 13, 2016 22:20
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Save AeonFr/f44a8b6f175d059f8328638a6a30ce4d to your computer and use it in GitHub Desktop.
Markdown preview for txti.es. This code should be injected at the end of a website with url like: txti.es/*/edit - The script is ready to be used with TamperMonkey user script manager (chrome extension)
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// ==UserScript== | |
// @name Markdown Preview in txti | |
// @namespace https://gist.github.com/AeonFr/f44a8b6f175d059f8328638a6a30ce4d | |
// @version 0.1 | |
// @description When EDITING a txti (txti.es/*/edit) in txti.es you should be able to preview your changes (a toggle preview button appears) | |
// @author Francisco Cano | |
// @match http://txti.es/*/edit | |
// @grant none | |
// @run-at document-end | |
// @require https://cdnjs.cloudflare.com/ajax/libs/showdown/1.3.0/showdown.min.js | |
// ==/UserScript== | |
(function() { | |
'use strict'; | |
function _(selector){ | |
return document.querySelector(selector); | |
} | |
window.addEventListener('load', function(){ | |
initMarkdownPreview(); | |
}); | |
var converter = false; | |
function initMarkdownPreview(){ | |
if( _('#content-input') ){ | |
var elt = document.createElement('div'), | |
converter = new showdown.Converter(); | |
elt.id = 'content-preview'; | |
elt.style.display = 'none'; | |
_('#create-a-txti').insertBefore(elt, _('#content-input')); | |
var contentToMarkdownPreviewer = function(){ | |
var result = converter.makeHtml( _('#content-input').value ); | |
elt.innerHTML = result; | |
}; | |
_('#content-input').addEventListener('keyup', contentToMarkdownPreviewer); | |
// Fire the conversion the first time, when page is loaded | |
contentToMarkdownPreviewer(); | |
var elt2 = document.createElement('div'); | |
elt2.innerHTML = '<a href="content-input" action="toggle-preview">Toggle Preview</a>'; | |
_('#create-a-txti').insertBefore(elt2, _('#content-preview')); | |
elt2.addEventListener('click', function(e){ | |
e.preventDefault(); | |
if ( _('#content-input').style.display != 'none' ){ | |
_('#content-input').style.display = 'none'; | |
_('#content-preview').style.display = 'block'; | |
}else{ | |
_('#content-input').style.display = 'block'; | |
_('#content-preview').style.display = 'none'; | |
} | |
}); | |
} | |
} | |
})(); |
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