<!doctype>
< html >
< head >
< script type = "text/javascript" src = "../ext/bignumber.min.js" > < / script >
< script type = "text/javascript" src = "../ext/ethereum.js/dist/ethereum.js" > < / script >
< / head >
< body >
< h1 > JevCoin< / h1 >
< div >
< strong > Balance< / strong >
< span id = "balance" > < / strong >
< / div >
< div >
< span class = "amount" > Amount:< / span >
< input type = "text" id = "address" style = "width:200px" >
< input type = "text" id = "amount" style = "width:200px" >
< button onclick = "transact()" > Send< / button >
< / div >
< table width = "100%" id = "table" >
< / table >
< / body >
< script type = "text/javascript" >
var web3 = require('web3');
var eth = web3.eth;
web3.setProvider(new web3.providers.HttpSyncProvider('http://localhost:8080'));
var desc = [{
"name": "balance(address)",
"inputs": [{
"name": "who",
"type": "address"
}],
"const": true,
"outputs": [{
"name": "value",
"type": "uint256"
}]
}, {
"name": "send(address,uint256)",
"inputs": [{
"name": "to",
"type": "address"
}, {
"name": "value",
"type": "uint256"
}],
"outputs": []
}];
var address = web3.db.get("jevcoin", "address");
if( address.length == 0 ) {
var code = "0x60056011565b60ae8060356000396000f35b64174876e800600033600160a060020a031660005260205260406000208190555056006001600060e060020a600035048063d0679d34146022578063e3d670d714603457005b602e6004356024356047565b60006000f35b603d600435608d565b8060005260206000f35b80600083600160a060020a0316600052602052604060002090815401908190555080600033600160a060020a031660005260205260406000209081540390819055505050565b6000600082600160a060020a0316600052602052604060002054905091905056";
address = web3.eth.transact({
data: code,
gasprice: "1000000000000000",
gas: "10000",
});
web3.db.put("jevcoin", "address", address);
}
var contract = web3.eth.contract(address, desc);
document.querySelector("#balance").innerHTML = contract.call().balance(eth.coinbase);
function reflesh() {
var table = document.querySelector("#table");
table.innerHTML = ""; // clear
var storage = eth.storageAt(address);
for( var item in storage ) {
table.innerHTML += "< tr > < td > "+item+"< / td > < td > "+web3.toDecimal(storage[item])+"< / td > < / tr > ";
}
}
function transact() {
var to = document.querySelector("#address").value;
if( to.length == 0 ) {
to = "0x4205b06c2cfa0e30359edcab94543266cb6fa1d3";
} else {
to = "0x"+to;
}
var value = parseInt( document.querySelector("#amount").value );
contract.transact({gas: "10000", gasprice: eth.gasPrice}).send( to, value );
}
reflesh();
< / script >
< / html >
