tinygrabDL.user.js

// ==UserScript==
// @name         tinygrab download
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  try to take over the world!
// @author       You
// @match        http://grab.by/*
// @grant        none
// @require      https://npmcdn.com/clipboard@1.5.10/dist/clipboard.min.js
// ==/UserScript==

(function() {
    'use strict';
    var buttonStyles = `
        .cpButton, .dlButton {
            cursor:pointer;
            display:block;
            position:fixed;
            z-index: 99;
            top:0;
            right: 0;
            padding:.5em 1em;
            margin:1em;
            color:white;
        }
        .dlButton {
            background:tomato;
        }
        .cpButton {
            right:10em;
            background:#5082e6;
        }
        .cpButton:hover, .dlButton:hover {
            color: #fff;
            box-shadow: inset 0 0 0 999em rgba(255,255,255,0.1);
        }
        .cpButton:active, .dlButton:active {
            box-shadow: inset 0 0 0 999em rgba(255,255,255,0.4)
        }
    `;

    var style = document.createElement('style')
    style.appendChild(document.createTextNode(buttonStyles));
    style.type = 'text/css';
    document.head.appendChild(style);


    var dlButton = document.createElement('a');
    var cpButton = document.createElement('a');

    dlButton.classList.add('dlButton');
    cpButton.classList.add('cpButton');

    dlButton.href = document.getElementById('thegrab').src;
    cpButton.dataset.clipboardText = document.getElementById('thegrab').src;

    dlButton.innerHTML = "TÉLÉCHARGER";
    cpButton.innerHTML = "COPIER LE LIEN";

    body.appendChild(dlButton);
    body.appendChild(cpButton);

    var clipboardButton = new Clipboard('.cpButton');

    clipboardButton
        .on('success', function(){
            cpButton.innerHTML = "COPIÉ"
        })
        .on('error', function(){
            cpButton.innerHTML = "ERROR"            
        })
})();