Greasy Fork is available in English.
Inject a GUI to execute custom JavaScript on any webpage
// ==UserScript==
// @name Golden Gate GUI
// @namespace http://tampermonkey.net/
// @version 1.4
// @description Inject a GUI to execute custom JavaScript on any webpage
// @author Your Name
// @match *://*/*
// @grant none
// ==/UserScript==
(function() {
'use strict';
// Create the GUI HTML
const guiHTML = `
<div class="window" id="goldenGateGui">
<div class="title-bar">
<span>Golden Gate Gui</span>
<div class="window-controls">
<span id="minimize">-</span>
<span id="maximize">□</span>
<span id="close">X</span>
</div>
</div>
<div class="content">
<textarea id="codeArea" placeholder="Enter your code here..."></textarea>
</div>
<div class="actions">
<button id="injectBtn">Inject</button>
</div>
</div>
`;
// Add styles for the GUI
const style = document.createElement('style');
style.textContent = `
body {
position: relative;
}
#goldenGateGui {
background-color: #FFA500;
border-radius: 10px;
box-shadow: 0px 0px 10px rgba(0, 0, 0, 0.1);
width: 400px;
overflow: hidden;
position: fixed;
top: 20px;
right: 20px;
z-index: 10000;
font-family: Arial, sans-serif;
cursor: move;
transition: top 0.2s ease, left 0.2s ease;
}
.title-bar {
background-color: #FFB732;
padding: 10px;
display: flex;
justify-content: space-between;
align-items: center;
color: black;
font-weight: bold;
border-bottom: 2px solid #FFA500;
}
.window-controls span {
margin-left: 10px;
cursor: pointer;
}
.content {
padding: 20px;
background-color: #FFD699;
}
textarea {
width: 100%;
height: 150px;
border: none;
resize: none;
padding: 10px;
box-sizing: border-box;
border-radius: 5px;
background-color: #FFE4B5;
}
.actions {
padding: 10px;
background-color: #FFB732;
display: flex;
justify-content: center;
}
button {
padding: 10px 20px;
border: none;
background-color: white;
color: black;
font-weight: bold;
border-radius: 5px;
cursor: pointer;
transition: background-color 0.3s;
}
button:hover {
background-color: #f2f2f2;
}
button:disabled {
background-color: #ccc;
cursor: not-allowed;
}
`;
document.head.appendChild(style);
// Insert the GUI into the page
const guiContainer = document.createElement('div');
guiContainer.innerHTML = guiHTML;
document.body.appendChild(guiContainer);
// Add dragging functionality
const gui = document.getElementById('goldenGateGui');
let isDragging = false;
let offsetX, offsetY;
function startDrag(event) {
isDragging = true;
offsetX = (event.clientX || event.touches[0].clientX) - gui.getBoundingClientRect().left;
offsetY = (event.clientY || event.touches[0].clientY) - gui.getBoundingClientRect().top;
gui.style.transition = 'none'; // Disable transition during drag
}
function drag(event) {
if (isDragging) {
requestAnimationFrame(() => {
const clientX = event.clientX || event.touches[0].clientX;
const clientY = event.clientY || event.touches[0].clientY;
gui.style.left = (clientX - offsetX) + 'px';
gui.style.top = (clientY - offsetY) + 'px';
});
}
}
function endDrag() {
if (isDragging) {
isDragging = false;
gui.style.transition = 'top 0.2s ease, left 0.2s ease'; // Smooth transition after drag
}
}
gui.addEventListener('mousedown', startDrag);
document.addEventListener('mousemove', drag);
document.addEventListener('mouseup', endDrag);
gui.addEventListener('touchstart', startDrag);
document.addEventListener('touchmove', drag);
document.addEventListener('touchend', endDrag);
// Button functionality
let codeToInject = '';
let urlToInject = '';
document.getElementById('injectBtn').addEventListener('click', function() {
urlToInject = document.getElementById('urlInput') ? document.getElementById('urlInput').value.trim() : '';
codeToInject = document.getElementById('codeArea').value;
if (urlToInject && codeToInject) {
try {
// Open the URL in a new tab
const newTab = window.open(urlToInject, '_blank');
newTab.focus();
// Set up a message listener to communicate with the new tab
window.addEventListener('message', function(event) {
if (event.source === newTab) {
// Pass the injected code to the new tab
event.source.postMessage({ type: 'injectCode', code: codeToInject }, '*');
}
}, false);
// Enable or disable buttons based on whether injection is active
document.getElementById('injectBtn').disabled = true;
} catch (e) {
alert('Error opening the URL: ' + e.message);
}
} else {
alert('Please enter code ♥.');
}
});
// Add functionality to the window controls
document.getElementById('minimize').addEventListener('click', function() {
document.querySelector('.content').style.display = 'none';
document.querySelector('.actions').style.display = 'none';
});
document.getElementById('maximize').addEventListener('click', function() {
document.querySelector('.content').style.display = 'block';
document.querySelector('.actions').style.display = 'flex';
});
document.getElementById('close').addEventListener('click', function() {
document.getElementById('goldenGateGui').remove();
});
})();