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Adds a full markdown editor with preview and draft saving to Reddit post and reply boxes
// ==UserScript==
// @name Reddit Full Markdown Editor
// @namespace http://tampermonkey.net/
// @version 1.0
// @description Adds a full markdown editor with preview and draft saving to Reddit post and reply boxes
// @author Mr.K
// @match https://old.reddit.com/*
// @grant GM_addStyle
// ==/UserScript==
(function() {
'use strict';
// Load SimpleMDE and CSS
var simplemdeScript = document.createElement('script');
simplemdeScript.src = 'https://cdn.jsdelivr.net/simplemde/latest/simplemde.min.js';
document.head.appendChild(simplemdeScript);
var simplemdeCss = document.createElement('link');
simplemdeCss.rel = 'stylesheet';
simplemdeCss.href = 'https://cdn.jsdelivr.net/simplemde/latest/simplemde.min.css';
document.head.appendChild(simplemdeCss);
// Add Custom Styles for the Popup
GM_addStyle(`
.markdown-editor-popup {
position: fixed;
top: 10%;
left: 50%;
transform: translateX(-50%);
width: 80%;
max-width: 800px;
background: #fff;
border: 1px solid #ccc;
box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
z-index: 1000;
display: none;
}
.markdown-editor-popup-header {
background: #f6f6f6;
padding: 10px;
border-bottom: 1px solid #ccc;
font-size: 16px;
font-weight: bold;
display: flex;
justify-content: space-between;
}
.markdown-editor-popup-body {
padding: 10px;
}
.markdown-editor-popup-footer {
background: #f6f6f6;
padding: 10px;
border-top: 1px solid #ccc;
display: flex;
justify-content: flex-end;
}
.markdown-editor-drafts {
margin-top: 10px;
max-height: 200px;
overflow-y: auto;
border-top: 1px solid #ccc;
padding-top: 10px;
}
.markdown-editor-draft-item {
display: flex;
justify-content: space-between;
align-items: center;
padding: 5px;
cursor: pointer;
}
.markdown-editor-draft-item:hover {
background: #e9e9e9;
}
.markdown-editor-draft-delete {
background: red;
color: white;
border: none;
cursor: pointer;
padding: 5px;
margin-left: 10px;
}
`);
function createPopup() {
var popup = document.createElement('div');
popup.className = 'markdown-editor-popup';
popup.innerHTML = `
<div class="markdown-editor-popup-header">
Markdown Editor
<button class="markdown-editor-popup-close">X</button>
</div>
<div class="markdown-editor-popup-body">
<textarea id="markdown-editor-textarea"></textarea>
<div class="markdown-editor-drafts"></div>
</div>
<div class="markdown-editor-popup-footer">
<button class="markdown-editor-save-draft">Save Draft</button>
<button class="markdown-editor-submit">Submit</button>
</div>
`;
document.body.appendChild(popup);
var simplemde = new SimpleMDE({ element: document.getElementById('markdown-editor-textarea') });
return { popup, simplemde };
}
function openPopup(simplemde, target) {
var popup = document.querySelector('.markdown-editor-popup');
popup.style.display = 'block';
simplemde.value(target.value);
// Load drafts
var draftsContainer = document.querySelector('.markdown-editor-drafts');
draftsContainer.innerHTML = '';
var drafts = JSON.parse(localStorage.getItem('markdownEditorDrafts') || '[]');
drafts.forEach((draft, index) => {
var draftItem = document.createElement('div');
draftItem.className = 'markdown-editor-draft-item';
draftItem.innerHTML = `
<span>${draft.substring(0, 50)}...</span>
<button class="markdown-editor-draft-delete" data-index="${index}">Delete</button>
`;
draftItem.querySelector('span').onclick = () => simplemde.value(draft);
draftItem.querySelector('.markdown-editor-draft-delete').onclick = () => {
deleteDraft(index, simplemde, target);
};
draftsContainer.appendChild(draftItem);
});
// Handle saving drafts
document.querySelector('.markdown-editor-save-draft').onclick = () => {
drafts.push(simplemde.value());
localStorage.setItem('markdownEditorDrafts', JSON.stringify(drafts));
alert('Draft saved!');
openPopup(simplemde, target); // Refresh the drafts list
};
// Handle submitting content
document.querySelector('.markdown-editor-submit').onclick = () => {
target.value = simplemde.value();
popup.style.display = 'none';
};
// Handle closing the popup
document.querySelector('.markdown-editor-popup-close').onclick = () => {
popup.style.display = 'none';
};
}
function deleteDraft(index, simplemde, target) {
var drafts = JSON.parse(localStorage.getItem('markdownEditorDrafts') || '[]');
drafts.splice(index, 1);
localStorage.setItem('markdownEditorDrafts', JSON.stringify(drafts));
alert('Draft deleted!');
openPopup(simplemde, target); // Refresh the drafts list
}
function init() {
var { popup, simplemde } = createPopup();
document.querySelectorAll('.usertext-edit textarea').forEach(textarea => {
var openEditorButton = document.createElement('button');
openEditorButton.textContent = 'Open Markdown Editor';
openEditorButton.style.display = 'block';
openEditorButton.style.marginBottom = '10px';
openEditorButton.onclick = () => openPopup(simplemde, textarea);
textarea.parentNode.insertBefore(openEditorButton, textarea);
});
}
simplemdeScript.onload = init;
})();