From 16a04e64f23b7a81018c7fcf7626ca6965d9a809 Mon Sep 17 00:00:00 2001
From: obscuren <geffobscura@gmail.com>
Date: Sat, 7 Feb 2015 17:04:19 +0100
Subject: [PATCH] Updated coin
---
cmd/mist/assets/examples/coin.html | 96 ++++++++++++++++++++----------
1 file changed, 66 insertions(+), 30 deletions(-)
diff --git a/cmd/mist/assets/examples/coin.html b/cmd/mist/assets/examples/coin.html
index 1e8a1cad9..71b359834 100644
--- a/cmd/mist/assets/examples/coin.html
+++ b/cmd/mist/assets/examples/coin.html
@@ -7,7 +7,7 @@
</head>
<body>
-<h1>JevCoin</h1>
+<h1>JevCoin <code id="address"></code></h1>
<div>
<strong>Balance</strong>
<span id="balance"></strong>
@@ -20,7 +20,11 @@
<button onclick="transact()">Send</button>
</div>
+<hr>
+
<table width="100%" id="table">
+ <tr><td style="width:40%;">Address</td><td>Balance</td></tr>
+ <tbody id="table_body"></tbody>
</table>
</body>
@@ -29,9 +33,8 @@
var web3 = require('web3');
var eth = web3.eth;
- web3.setProvider(new
- web3.providers.HttpSyncProvider('http://localhost:8545'));
- var desc = [{
+ web3.setProvider(new web3.providers.HttpSyncProvider('http://localhost:8545'));
+ var desc = [{
"name": "balance(address)",
"type": "function",
"inputs": [{
@@ -55,57 +58,90 @@
}],
"outputs": []
}, {
- "name":"Changed",
+ "name":"changed",
"type":"event",
"inputs": [
{"name":"to","type":"address","indexed":true},
- {"name":"amount","type":"uint256","indexed":false},
+ {"name":"from","type":"address","indexed":true},
],
}];
- var address = web3.db.get("jevcoin", "address");
- if( address.length == 0 ) {
- var code = "0x60056011565b60b88060356000396000f35b64e8d4a51000600033600160a060020a0316600052602052604060002081905550560060e060020a6000350480637bb98a68146028578063d0679d34146034578063e3d670d714604657005b602e60b3565b60006000f35b60406004356024356059565b60006000f35b604f6004356091565b8060005260206000f35b8060005281600160a060020a03167fb52dda022b6c1a1f40905a85f257f689aa5d69d850e49cf939d688fbe5af594660206000a25050565b6000600082600160a060020a03166000526020526040600020549050919050565b5b60008156";
- address = web3.eth.transact({
- data: code,
- gasPrice: "1000000000000000",
- gas: "10000",
- });
- web3.db.put("jevcoin", "address", address);
- }
+ var address = localStorage.getItem("address");
+ // deploy if not exist
+ if (address == null) {
+ var code = "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";
+ address = web3.eth.transact({
+ data: code,
+ gasPrice: "1000000000000000",
+ gas: "10000",
+ });
+ localStorage.setItem("address", address);
+ }
+ document.querySelector("#address").innerHTML = address.toUpperCase();
var contract = web3.eth.contract(address, desc);
- contract.Changed({to: "0xaa"}).changed(function(e) {
- console.log("e: " + JSON.stringify(e));
+ contract.changed({from: eth.accounts[0]}).changed(function() {
+ refresh();
});
- contract.send( "0xaa", 10000 );
- function reflesh() {
- document.querySelector("#balance").innerHTML = contract.balance(eth.coinbase);
+ eth.watch('chain').changed(function() {
+ refresh();
+ });
+
+ function refresh() {
+ document.querySelector("#balance").innerHTML = contract.balance(eth.coinbase);
- var table = document.querySelector("#table");
+ var table = document.querySelector("#table_body");
table.innerHTML = ""; // clear
var storage = eth.storageAt(address);
+ table.innerHTML = "";
for( var item in storage ) {
- table.innerHTML += "<tr><td>"+item+"</td><td>"+web3.toDecimal(storage[item])+"</td></tr>";
+ table.innerHTML += "<tr><td>"+item.toUpperCase()+"</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;
- }
+
+ 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 );
+ contract.send( to, value );
}
- reflesh();
+ refresh();
</script>
</html>
+<!--
+contract JevCoin {
+ function JevCoin()
+ {
+ balances[msg.sender] = 1000000;
+ }
+
+ event changed(address indexed from, address indexed to);
+ function send(address to, uint value)
+ {
+ if( balances[msg.sender] < value ) return;
+
+ balances[msg.sender] -= value;
+ balances[to] += value;
+
+ changed(msg.sender, to);
+ }
+
+ function balance(address who) constant returns(uint t)
+ {
+ t = balances[who];
+ }
+
+ mapping(address => uint256) balances;
+ }
+-!>
--
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