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