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<!doctype>
< html >
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< title > JevCoin< / title >
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< 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;
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web3.setProvider(new
web3.providers.HttpSyncProvider('http://localhost:8545'));
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var desc = [{
"name": "balance(address)",
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"type": "function",
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"inputs": [{
"name": "who",
"type": "address"
}],
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"constant": true,
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"outputs": [{
"name": "value",
"type": "uint256"
}]
}, {
"name": "send(address,uint256)",
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"type": "function",
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"inputs": [{
"name": "to",
"type": "address"
}, {
"name": "value",
"type": "uint256"
}],
"outputs": []
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}, {
"name":"Changed",
"type":"event",
"inputs": [
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{"name":"to","type":"address","indexed":true},
{"name":"amount","type":"uint256","indexed":false},
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],
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}];
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var address = web3.db.get("jevcoin", "address");
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if( address.length == 0 ) {
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var code = "0x60056011565b60b88060356000396000f35b64e8d4a51000600033600160a060020a0316600052602052604060002081905550560060e060020a6000350480637bb98a68146028578063d0679d34146034578063e3d670d714604657005b602e60b3565b60006000f35b60406004356024356059565b60006000f35b604f6004356091565b8060005260206000f35b8060005281600160a060020a03167fb52dda022b6c1a1f40905a85f257f689aa5d69d850e49cf939d688fbe5af594660206000a25050565b6000600082600160a060020a03166000526020526040600020549050919050565b5b60008156";
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address = web3.eth.transact({
data: code,
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gasPrice: "1000000000000000",
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gas: "10000",
});
web3.db.put("jevcoin", "address", address);
}
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var contract = web3.eth.contract(address, desc);
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contract.Changed({to: "0xaa"}).changed(function(e) {
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console.log("e: " + JSON.stringify(e));
});
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contract.send( "0xaa", 10000 );
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function reflesh() {
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document.querySelector("#balance").innerHTML = contract.balance(eth.coinbase);
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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() {
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var to = document.querySelector("#address").value;
if( to.length == 0 ) {
to = "0x4205b06c2cfa0e30359edcab94543266cb6fa1d3";
} else {
to = "0x"+to;
}
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var value = parseInt( document.querySelector("#amount").value );
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contract.transact({gas: "10000", gasprice: eth.gasPrice}).send( to, value );
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}
reflesh();
< / script >
< / html >
