plugeth/cmd/mist/assets/ext/ethereum.js
2014-10-23 15:48:53 +02:00

313 lines
7.1 KiB
JavaScript

// Copyright (c) 2013-2014, Jeffrey Wilcke. All rights reserved.
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this library; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
// MA 02110-1301 USA
// Main Ethereum library
window.eth = {
prototype: Object(),
_callbacks: {},
_onCallbacks: {},
test: function() {
var t = undefined;
postData({call: "test"})
navigator.qt.onmessage = function(d) {console.log("onmessage called"); t = d; }
for(;;) {
if(t !== undefined) {
return t
}
}
},
mutan: function(code, cb) {
postData({call: "mutan", args: [code]}, cb)
},
toHex: function(str) {
var hex = "";
for(var i = 0; i < str.length; i++) {
var n = str.charCodeAt(i).toString(16);
hex += n.length < 2 ? '0' + n : n;
}
return hex;
},
toAscii: function(hex) {
// Find termination
var str = "";
var i = 0, l = hex.length;
for(; i < l; i+=2) {
var code = hex.charCodeAt(i)
if(code == 0) {
break;
}
str += String.fromCharCode(parseInt(hex.substr(i, 2), 16));
}
return str;
},
fromAscii: function(str, pad) {
if(pad === undefined) {
pad = 32
}
var hex = this.toHex(str);
while(hex.length < pad*2)
hex += "00";
return hex
},
// Retrieve block
//
// Either supply a number or a string. Type is determent for the lookup method
// string - Retrieves the block by looking up the hash
// number - Retrieves the block by looking up the block number
getBlock: function(numberOrHash, cb) {
var func;
if(typeof numberOrHash == "string") {
func = "getBlockByHash";
} else {
func = "getBlockByNumber";
}
postData({call: func, args: [numberOrHash]}, cb);
},
// Create transaction
//
// Transact between two state objects
transact: function(params, cb) {
if(params === undefined) {
params = {};
}
if(params.endowment !== undefined)
params.value = params.endowment;
if(params.code !== undefined)
params.data = params.code;
// Make sure everything is string
var fields = ["to", "from", "value", "gas", "gasPrice"];
for(var i = 0; i < fields.length; i++) {
if(params[fields[i]] === undefined) {
params[fields[i]] = "";
}
params[fields[i]] = params[fields[i]].toString();
}
var data;
if(typeof params.data === "object") {
data = "";
for(var i = 0; i < params.data.length; i++) {
data += params.data[i]
}
} else {
data = params.data;
}
postData({call: "transact", args: [params.from, params.to, params.value, params.gas, params.gasPrice, "0x"+data]}, cb);
},
getMessages: function(filter, cb) {
postData({call: "messages", args: [filter]}, cb);
},
getStorageAt: function(address, storageAddress, cb) {
postData({call: "getStorage", args: [address, storageAddress]}, cb);
},
getEachStorageAt: function(address, cb){
postData({call: "getEachStorage", args: [address]}, cb);
},
getKey: function(cb) {
postData({call: "getKey"}, cb);
},
getTxCountAt: function(address, cb) {
postData({call: "getTxCountAt", args: [address]}, cb);
},
getIsMining: function(cb){
postData({call: "getIsMining"}, cb)
},
getIsListening: function(cb){
postData({call: "getIsListening"}, cb)
},
getCoinBase: function(cb){
postData({call: "getCoinBase"}, cb);
},
getPeerCount: function(cb){
postData({call: "getPeerCount"}, cb);
},
getBalanceAt: function(address, cb) {
postData({call: "getBalance", args: [address]}, cb);
},
getTransactionsFor: function(address, cb) {
postData({call: "getTransactionsFor", args: [address]}, cb);
},
getSecretToAddress: function(sec, cb) {
postData({call: "getSecretToAddress", args: [sec]}, cb);
},
/*
watch: function(address, storageAddrOrCb, cb) {
var ev;
if(cb === undefined) {
cb = storageAddrOrCb;
storageAddrOrCb = "";
ev = "object:"+address;
} else {
ev = "storage:"+address+":"+storageAddrOrCb;
}
eth.on(ev, cb)
postData({call: "watch", args: [address, storageAddrOrCb]});
},
disconnect: function(address, storageAddrOrCb, cb) {
var ev;
if(cb === undefined) {
cb = storageAddrOrCb;
storageAddrOrCb = "";
ev = "object:"+address;
} else {
ev = "storage:"+address+":"+storageAddrOrCb;
}
eth.off(ev, cb)
postData({call: "disconnect", args: [address, storageAddrOrCb]});
},
*/
watch: function(options) {
var filter = new Filter(options);
filter.number = newWatchNum().toString()
postData({call: "watch", args: [options, filter.number]})
return filter;
},
set: function(props) {
postData({call: "set", args: props});
},
on: function(event, cb) {
if(eth._onCallbacks[event] === undefined) {
eth._onCallbacks[event] = [];
}
eth._onCallbacks[event].push(cb);
return this
},
off: function(event, cb) {
if(eth._onCallbacks[event] !== undefined) {
var callbacks = eth._onCallbacks[event];
for(var i = 0; i < callbacks.length; i++) {
if(callbacks[i] === cb) {
delete callbacks[i];
}
}
}
return this
},
trigger: function(event, data) {
var callbacks = eth._onCallbacks[event];
if(callbacks !== undefined) {
for(var i = 0; i < callbacks.length; i++) {
// Figure out whether the returned data was an array
// array means multiple return arguments (multiple params)
if(data instanceof Array) {
callbacks[i].apply(this, data);
} else {
callbacks[i].call(this, data);
}
}
}
},
}
var Filter = function(options) {
this.options = options;
};
Filter.prototype.changed = function(callback) {
// Register the watched:<number>. Qml will call the appropriate event if anything
// interesting happens in the land of Go.
eth.on("watched:"+this.number, callback)
}
Filter.prototype.getMessages = function(cb) {
return eth.getMessages(this.options, cb)
}
var watchNum = 0;
function newWatchNum() {
return watchNum++;
}
function postData(data, cb) {
data._seed = Math.floor(Math.random() * 1000000)
if(cb) {
eth._callbacks[data._seed] = cb;
}
if(data.args === undefined) {
data.args = [];
}
navigator.qt.postMessage(JSON.stringify(data));
}
navigator.qt.onmessage = function(ev) {
var data = JSON.parse(ev.data)
if(data._event !== undefined) {
eth.trigger(data._event, data.data);
} else {
if(data._seed) {
var cb = eth._callbacks[data._seed];
if(cb) {
cb.call(this, data.data)
// Remove the "trigger" callback
delete eth._callbacks[ev._seed];
}
}
}
}
eth.on("chain:changed", function() {
})
eth.on("messages", { /* filters */}, function(messages){
})
eth.on("pending:changed", function() {
})