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gntw.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta name="viewport" content="width=device-width, initial-scale=1" />
<link href="/images/favicon.ico" rel="icon" />
<link href="/css/bootstrap.min.css" rel="stylesheet" />
<link href="/css/font-awesome.min.css" rel="stylesheet" />
<link href="/css/ie10-viewport-bug-workaround.css" rel="stylesheet" />
<link href="/css/alertify.min.css" rel="stylesheet" />
<link href="/css/alertify-bootstrap.min.css" rel="stylesheet" />
<title>GNTW</title>
<style>
body {
border: 12px solid #ccc;
padding-left: 12px;
padding-right: 12px;
}
.step {
font-weight: bold;
}
</style>
</head>
<body>
<div class="page-header">
<h1>GNT Wrapper</h1>
</div>
<p>This is a basic UI to help you convert back and forth between GNT and GNTW. <a href="https://metamask.io" target="_blank">MetaMask</a> is the suggested client.</p>
<p>GNTW is a wrapper token for GNT that supports the full <a href="https://github.com/ethereum/EIPs/issues/20" target="_blank">ERC-20 token standard</a>.</p>
<p>The GNTW smart contract allows you to convert back and forth between <a href="https://etherscan.io/token/Golem" target="_blank">GNT</a> (Golem Network Token) and <a href="https://etherscan.io/token/0x936f78b9852d12f5cb93177c1f84fb8513d06263" target="_blank">GNTW</a> (Golem Network Token Wrapped).</p>
<p>The main benefit of converting to GNTW is that, since it supports the full ERC-20 token standard, you can trade GNTW on decentralized exchanges like <a href="https://etherdelta.github.io/#GNTW-ETH" target="_blank">EtherDelta</a>.</p>
<p>Original source and discussion: <a href="https://np.reddit.com/r/ethereum/comments/5cs2n4/erc20compliant_wrapper_token_for_gnt_will_enable/" target="_blank">on reddit</a>.</p>
<h3>Pick an address</h3>
<div class="btn-group">
<button type="button" class="btn btn-default dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
<span id="address"></span> <span class="caret"></span>
</button>
<ul class="dropdown-menu" id="addresses">
</ul>
</div>
<div id="balanceGNT"></div>
<div id="balanceGNTW"></div>
<h3>Convert GNT —> GNTW</h3>
<p class="step">Step 1: Generate personal deposit address.</p>
<div id="depositAddress"></div>
<p class="step">Step 2: Send GNT to personal deposit address.</p>
<div id="sendGNT"></div>
<p class="step">Step 3: Process deposit.</p>
<div id="currentDeposit"></div>
<div id="processDeposit"></div>
<h3>Convert GNTW —> GNT</h3>
<div id="withdraw"></div>
<script src="/js/jquery-1.11.1.min.js" type="text/javascript"></script>
<script src="/js/bootstrap.min.js" type="text/javascript"></script>
<script src="/js/alertify.min.js" type="text/javascript"></script>
<script src="/js/web3.min.js" type="text/javascript"></script>
<script>
var account, WrapperAddr, WrapperABI, Wrapper, GNTAddr, GNTABI, GNT, depositAddress;
function selectAccount(newAccount) {
account = newAccount;
$('#address').html(account);
update(function(){});
}
function update(callback) {
GNT.balanceOf(account, function(err, balance){
var balanceGNT = web3.fromWei(balance, "ether");
$('#balanceGNT').html('<p>Balance (GNT): '+balanceGNT+'</p>');
});
Wrapper.balanceOf(account, function(err, balance){
var balanceGNTW = web3.fromWei(balance, "ether");
$('#balanceGNTW').html('<p>Balance (GNTW): '+balanceGNTW+'</p>');
if (balance>0) {
var html = '<p><input class="form-control" style="width: 150px; display: inline;" type="text" id="withdrawAmount"> <button class="btn btn-default" onclick="withdrawGNTW();">Withdraw GNTW</button></p>';
if ($('#withdraw').html()!=html) $('#withdraw').html(html);
} else {
$('#withdraw').html('<p>You don\'t have any GNTW to withdraw.</p>');
}
});
Wrapper.getPersonalDepositAddress(account, function(err, result) {
depositAddress = result;
if (depositAddress != '0x0000000000000000000000000000000000000000') {
$('#depositAddress').html('<p>Deposit address: <a href="https://etherscan.io/address/'+depositAddress+'" target="_blank">'+depositAddress+'</a></p>');
var html = '<p><input class="form-control" style="width: 150px; display: inline;" type="text" id="depositAmount"> <button class="btn btn-default" onclick="sendGNT();">Send GNT</button></p>';
if ($('#sendGNT').html()!=html) $('#sendGNT').html(html);
GNT.balanceOf(depositAddress, function(err, result) {
var currentDeposit = web3.fromWei(result, "ether");
$('#currentDeposit').html('<p>Current deposit (GNT): '+currentDeposit+'</p>');
if (currentDeposit>0) {
$('#processDeposit').html('<p><button class="btn btn-default" onclick="processDeposit();">Process deposit</button></p>');
} else {
$('#processDeposit').html('<p>Please deposit first.</p>');
}
callback();
});
} else {
$('#depositAddress').html('<p><button class="btn btn-default" onclick="generateDepositAddress();">Generate deposit address</button></p>');
$('#processDeposit').html('<p>Please generate a deposit address first.</p>');
$('#currentDeposit').html('');
$('#sendGNT').html('<p>Please generate a deposit address first.</p>');
callback();
}
})
}
function generateDepositAddress() {
Wrapper.createPersonalDepositAddress({from: account, value: 0, gas: 250000}, function(err, result){
txSent(result);
});
}
function processDeposit() {
Wrapper.processDeposit({from: account, value: 0, gas: 250000}, function(err, result){
txSent(result);
});
}
function sendGNT() {
var amount = web3.toWei($('#depositAmount').val(), "ether");
GNT.balanceOf(account, function(err, balance) {
if (amount>balance) amount = balance;
if (depositAddress && amount>0) {
GNT.transfer(depositAddress, amount, {from: account, value: 0, gas: 250000}, function(err, result){
txSent(result);
});
}
})
}
function withdrawGNTW() {
var amount = web3.toWei($('#withdrawAmount').val(), "ether");
Wrapper.balanceOf(account, function(err, balance){
if (amount>balance) amount = balance;
if (amount>0) {
Wrapper.transfer(Wrapper.address, amount, {from: account, value: 0, gas: 250000}, function(err, result){
txSent(result);
});
}
})
}
function txSent(hash) {
alert('You sent a transaction. Follow it here: <a href="https://etherscan.io/tx/'+hash+'" target="_blank">'+hash+'</a>');
}
function alert(message) {
alertify.alert('Alert', message, function(){});
}
function init() {
function contractAt(abi, address) {
var contract = self.web3.eth.contract(abi);
contract = contract.at(address);
return contract;
}
WrapperAddr = '0x936f78b9852d12f5cb93177c1f84fb8513d06263';
WrapperABI = [{"constant":true,"inputs":[],"name":"name","outputs":[{"name":"","type":"string"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_spender","type":"address"},{"name":"_amount","type":"uint256"}],"name":"approve","outputs":[{"name":"success","type":"bool"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"totalSupply","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_from","type":"address"},{"name":"_to","type":"address"},{"name":"_amount","type":"uint256"}],"name":"transferFrom","outputs":[{"name":"success","type":"bool"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"decimals","outputs":[{"name":"","type":"uint8"}],"payable":false,"type":"function"},{"constant":true,"inputs":[{"name":"depositer","type":"address"}],"name":"getPersonalDepositAddress","outputs":[{"name":"depositAddress","type":"address"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"standard","outputs":[{"name":"","type":"string"}],"payable":false,"type":"function"},{"constant":true,"inputs":[{"name":"_owner","type":"address"}],"name":"balanceOf","outputs":[{"name":"balance","type":"uint256"}],"payable":false,"type":"function"},{"constant":false,"inputs":[],"name":"createPersonalDepositAddress","outputs":[{"name":"depositAddress","type":"address"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"GNT","outputs":[{"name":"","type":"address"}],"payable":false,"type":"function"},{"constant":false,"inputs":[],"name":"processDeposit","outputs":[],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"symbol","outputs":[{"name":"","type":"string"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_to","type":"address"},{"name":"_amount","type":"uint256"}],"name":"transfer","outputs":[{"name":"success","type":"bool"}],"payable":false,"type":"function"},{"constant":true,"inputs":[{"name":"_owner","type":"address"},{"name":"_spender","type":"address"}],"name":"allowance","outputs":[{"name":"remaining","type":"uint256"}],"payable":false,"type":"function"},{"anonymous":false,"inputs":[{"indexed":true,"name":"_from","type":"address"},{"indexed":true,"name":"_to","type":"address"},{"indexed":false,"name":"_amount","type":"uint256"}],"name":"Transfer","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"_owner","type":"address"},{"indexed":true,"name":"_spender","type":"address"},{"indexed":false,"name":"_amount","type":"uint256"}],"name":"Approval","type":"event"}];
Wrapper = contractAt(WrapperABI, WrapperAddr);
GNTAddr = '0xa74476443119A942dE498590Fe1f2454d7D4aC0d';
GNTABI = [{"constant":true,"inputs":[],"name":"name","outputs":[{"name":"","type":"string"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"golemFactory","outputs":[{"name":"","type":"address"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"totalSupply","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_master","type":"address"}],"name":"setMigrationMaster","outputs":[],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"decimals","outputs":[{"name":"","type":"uint8"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_value","type":"uint256"}],"name":"migrate","outputs":[],"payable":false,"type":"function"},{"constant":false,"inputs":[],"name":"finalize","outputs":[],"payable":false,"type":"function"},{"constant":false,"inputs":[],"name":"refund","outputs":[],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"migrationMaster","outputs":[{"name":"","type":"address"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"tokenCreationCap","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"constant":true,"inputs":[{"name":"_owner","type":"address"}],"name":"balanceOf","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_agent","type":"address"}],"name":"setMigrationAgent","outputs":[],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"migrationAgent","outputs":[{"name":"","type":"address"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"fundingEndBlock","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"totalMigrated","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"symbol","outputs":[{"name":"","type":"string"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_to","type":"address"},{"name":"_value","type":"uint256"}],"name":"transfer","outputs":[{"name":"","type":"bool"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"tokenCreationMin","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"funding","outputs":[{"name":"","type":"bool"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"tokenCreationRate","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"fundingStartBlock","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"constant":false,"inputs":[],"name":"create","outputs":[],"payable":true,"type":"function"},{"inputs":[{"name":"_golemFactory","type":"address"},{"name":"_migrationMaster","type":"address"},{"name":"_fundingStartBlock","type":"uint256"},{"name":"_fundingEndBlock","type":"uint256"}],"type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"name":"_from","type":"address"},{"indexed":true,"name":"_to","type":"address"},{"indexed":false,"name":"_value","type":"uint256"}],"name":"Transfer","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"_from","type":"address"},{"indexed":true,"name":"_to","type":"address"},{"indexed":false,"name":"_value","type":"uint256"}],"name":"Migrate","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"_from","type":"address"},{"indexed":false,"name":"_value","type":"uint256"}],"name":"Refund","type":"event"}];
GNT = contractAt(GNTABI, GNTAddr);
web3.eth.getAccounts(function(err, accounts){
account = accounts[0];
$('#address').html(account);
$('#addresses').html(accounts.map(function(account){return '<li><a href="javascript:;" onclick="selectAccount(\''+account+'\')">'+account+'</a></li>'}).join(''));
})
function updateLoop() {
update(function(){
setTimeout(function(){updateLoop()}, 10000);
});
}
updateLoop();
}
window.addEventListener('load', function() {
if (typeof web3 !== 'undefined') {
web3 = new Web3(web3.currentProvider);
} else {
console.log('No web3? You should consider trying MetaMask!')
web3 = new Web3(new Web3.providers.HttpProvider("http://localhost:8545"));
}
init();
})
</script>
<script>
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ga('send', 'pageview');
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</html>