Leverage the new watch & address:changed functionality

ethereal/assets/ethereum.js

@@ -47,6 +47,10 @@ window.eth = {
 		postData({call: "getKey"}, cb);
 	},
 
+	watch: function(address) {
+		postData({call: "watch", args: [address]});
+	},
+
 
 	on: function(event, cb) {
 		if(eth._onCallbacks[event] === undefined) {

ethereal/assets/qml/webapp.qml

@@ -74,14 +74,24 @@ ApplicationWindow {
 					var keys = eth.getKey()
 					postData(data._seed, keys)
 					break
+				case "watch":
+					if(data.args.length > 0) {
+						eth.watch(data.args[0]);
+					}
 				}
                         }
 			function postData(seed, data) {
 				webview.experimental.postMessage(JSON.stringify({data: data, _seed: seed}))
 			}
+			function postEvent(event, data) {
+				webview.experimental.postMessage(JSON.stringify({data: data, _event: event}))
+			}
 
 			function onNewBlockCb(block) {
-				webview.experimental.postMessage(JSON.stringify({data: block, _event: "block:new"}))
+				postEvent("block:new", block)
+			}
+			function onObjectChangeCb(stateObject) {
+				postEvent("object:change", stateObject)
 			}
                 }
 

ethereal/assets/samplecoin.html

@@ -22,12 +22,15 @@ function tests() {
 }
 
 function init() {
+	eth.watch(jefcoinAddr);
+
 	eth.getKey(function(key) {
 		eth.getStorage(jefcoinAddr, key, function(storage) {
 			document.querySelector("#currentAmount").innerHTML = "Amount: " + storage;
 		});
 
-		eth.on("block:new", function() {
+		eth.on("object:change", function(stateObject) {
+			debug(stateObject);
 			eth.getStorage(jefcoinAddr, key, function(storage) {
 				document.querySelector("#currentAmount").innerHTML = "Amount: " + storage;
 			});

ethereal/ui/gui.go

@@ -2,7 +2,6 @@ package ethui
 
 import (
 	"bytes"
-	"encoding/hex"
 	"fmt"
 	"github.com/ethereum/eth-go"
 	"github.com/ethereum/eth-go/ethchain"
@@ -13,45 +12,6 @@ import (
 	"strings"
 )
 
-// Block interface exposed to QML
-type Block struct {
-	Number int
-	Hash   string
-}
-
-type Tx struct {
-	Value, Hash, Address string
-	Contract             bool
-}
-
-type Key struct {
-	Address string
-}
-
-type KeyRing struct {
-	Keys []interface{}
-}
-
-func NewKeyRing(keys []interface{}) *KeyRing {
-	return &KeyRing{Keys: keys}
-}
-
-func NewTxFromTransaction(tx *ethchain.Transaction) *Tx {
-	hash := hex.EncodeToString(tx.Hash())
-	sender := hex.EncodeToString(tx.Recipient)
-	isContract := len(tx.Data) > 0
-
-	return &Tx{Hash: hash, Value: ethutil.CurrencyToString(tx.Value), Address: sender, Contract: isContract}
-}
-
-// Creates a new QML Block from a chain block
-func NewBlockFromBlock(block *ethchain.Block) *Block {
-	info := block.BlockInfo()
-	hash := hex.EncodeToString(block.Hash())
-
-	return &Block{Number: int(info.Number), Hash: hash}
-}
-
 type Gui struct {
 	// The main application window
 	win *qml.Window
@@ -96,9 +56,9 @@ func (ui *Gui) Start(assetPath string) {
 
 	// Register ethereum functions
 	qml.RegisterTypes("Ethereum", 1, 0, []qml.TypeSpec{{
-		Init: func(p *Block, obj qml.Object) { p.Number = 0; p.Hash = "" },
+		Init: func(p *QBlock, obj qml.Object) { p.Number = 0; p.Hash = "" },
 	}, {
-		Init: func(p *Tx, obj qml.Object) { p.Value = ""; p.Hash = ""; p.Address = "" },
+		Init: func(p *QTx, obj qml.Object) { p.Value = ""; p.Hash = ""; p.Address = "" },
 	}})
 
 	ethutil.Config.SetClientString(fmt.Sprintf("/Ethereal v%s", "0.1"))
@@ -169,13 +129,13 @@ func (ui *Gui) readPreviousTransactions() {
 	for it.Next() {
 		tx := ethchain.NewTransactionFromBytes(it.Value())
 
-		ui.win.Root().Call("addTx", NewTxFromTransaction(tx))
+		ui.win.Root().Call("addTx", NewQTx(tx))
 	}
 	it.Release()
 }
 
 func (ui *Gui) ProcessBlock(block *ethchain.Block) {
-	ui.win.Root().Call("addBlock", NewBlockFromBlock(block))
+	ui.win.Root().Call("addBlock", NewQBlock(block))
 }
 
 // Simple go routine function that updates the list of peers in the GUI
@@ -193,13 +153,13 @@ func (ui *Gui) update() {
 
 			if txMsg.Type == ethchain.TxPre {
 				if bytes.Compare(tx.Sender(), ui.addr) == 0 {
-					ui.win.Root().Call("addTx", NewTxFromTransaction(tx))
+					ui.win.Root().Call("addTx", NewQTx(tx))
 					ui.txDb.Put(tx.Hash(), tx.RlpEncode())
 
 					ui.eth.StateManager().GetAddrState(ui.addr).Nonce += 1
 					unconfirmedFunds.Sub(unconfirmedFunds, tx.Value)
 				} else if bytes.Compare(tx.Recipient, ui.addr) == 0 {
-					ui.win.Root().Call("addTx", NewTxFromTransaction(tx))
+					ui.win.Root().Call("addTx", NewQTx(tx))
 					ui.txDb.Put(tx.Hash(), tx.RlpEncode())
 
 					unconfirmedFunds.Add(unconfirmedFunds, tx.Value)

ethereal/ui/library.go

@@ -67,6 +67,10 @@ func (lib *EthLib) GetStateObject(address string) *Contract {
 	return NewContract(stateObject)
 }
 
+func (lib *EthLib) Watch(addr string) {
+	lib.stateManager.Watch(ethutil.FromHex(addr))
+}
+
 func (lib *EthLib) CreateTx(recipient, valueStr, gasStr, gasPriceStr, dataStr string) (string, error) {
 	var hash []byte
 	var contractCreation bool
@@ -117,7 +121,7 @@ func (lib *EthLib) CreateTx(recipient, valueStr, gasStr, gasPriceStr, dataStr st
 	return ethutil.Hex(tx.Hash()), nil
 }
 
-func (lib *EthLib) GetBlock(hexHash string) *Block {
+func (lib *EthLib) GetBlock(hexHash string) *QBlock {
 	hash, err := hex.DecodeString(hexHash)
 	if err != nil {
 		return nil
@@ -125,5 +129,5 @@ func (lib *EthLib) GetBlock(hexHash string) *Block {
 
 	block := lib.blockChain.GetBlock(hash)
 
-	return &Block{Number: int(block.BlockInfo().Number), Hash: ethutil.Hex(block.Hash())}
+	return &QBlock{Number: int(block.BlockInfo().Number), Hash: ethutil.Hex(block.Hash())}
 }

ethereal/ui/types.go

@@ -0,0 +1,56 @@
+package ethui
+
+import (
+	"encoding/hex"
+	"github.com/ethereum/eth-go/ethchain"
+	"github.com/ethereum/eth-go/ethutil"
+)
+
+// Block interface exposed to QML
+type QBlock struct {
+	Number int
+	Hash   string
+}
+
+// Creates a new QML Block from a chain block
+func NewQBlock(block *ethchain.Block) *QBlock {
+	info := block.BlockInfo()
+	hash := hex.EncodeToString(block.Hash())
+
+	return &QBlock{Number: int(info.Number), Hash: hash}
+}
+
+type QTx struct {
+	Value, Hash, Address string
+	Contract             bool
+}
+
+func NewQTx(tx *ethchain.Transaction) *QTx {
+	hash := hex.EncodeToString(tx.Hash())
+	sender := hex.EncodeToString(tx.Recipient)
+	isContract := len(tx.Data) > 0
+
+	return &QTx{Hash: hash, Value: ethutil.CurrencyToString(tx.Value), Address: sender, Contract: isContract}
+}
+
+type QKey struct {
+	Address string
+}
+
+type QKeyRing struct {
+	Keys []interface{}
+}
+
+func NewQKeyRing(keys []interface{}) *QKeyRing {
+	return &QKeyRing{Keys: keys}
+}
+
+type QStateObject struct {
+	Address string
+	Amount  string
+	Nonce   int
+}
+
+func NewQStateObject(stateObject *ethchain.StateObject) *QStateObject {
+	return &QStateObject{ethutil.Hex(stateObject.Address()), stateObject.Amount.String(), int(stateObject.Nonce)}
+}

ethereal/ui/ui_lib.go

@@ -69,8 +69,10 @@ func (ui *UiLib) OpenHtml(path string) {
 	}
 	win.Set("url", path)
 
+	webView := win.ObjectByName("webView")
 	go func() {
 		blockChan := make(chan ethutil.React, 1)
+		addrChan := make(chan ethutil.React, 1)
 		quitChan := make(chan bool)
 
 		go func() {
@@ -82,8 +84,12 @@ func (ui *UiLib) OpenHtml(path string) {
 					break out
 				case block := <-blockChan:
 					if block, ok := block.Resource.(*ethchain.Block); ok {
-						b := &Block{Number: int(block.BlockInfo().Number), Hash: ethutil.Hex(block.Hash())}
+						b := &QBlock{Number: int(block.BlockInfo().Number), Hash: ethutil.Hex(block.Hash())}
-						win.ObjectByName("webView").Call("onNewBlockCb", b)
+						webView.Call("onNewBlockCb", b)
+					}
+				case stateObject := <-addrChan:
+					if stateObject, ok := stateObject.Resource.(*ethchain.StateObject); ok {
+						webView.Call("onObjectChangeCb", NewQStateObject(stateObject))
 					}
 				}
 			}
@@ -93,6 +99,7 @@ func (ui *UiLib) OpenHtml(path string) {
 			close(quitChan)
 		}()
 		ui.eth.Reactor().Subscribe("newBlock", blockChan)
+		ui.eth.Reactor().Subscribe("addressChanged", addrChan)
 
 		win.Show()
 		win.Wait()
@@ -169,7 +176,7 @@ func (ui *UiLib) DebugTx(recipient, valueStr, gasStr, gasPriceStr, data string)
 	callerClosure := ethchain.NewClosure(account, c, c.Script(), state, ethutil.Big(gasStr), ethutil.Big(gasPriceStr), ethutil.Big(valueStr))
 
 	block := ui.eth.BlockChain().CurrentBlock
-	vm := ethchain.NewVm(state, ethchain.RuntimeVars{
+	vm := ethchain.NewVm(state, ui.eth.StateManager(), ethchain.RuntimeVars{
 		Origin:      account.Address(),
 		BlockNumber: block.BlockInfo().Number,
 		PrevHash:    block.PrevHash,

ethereum/ethereum.go

@@ -53,20 +53,22 @@ func main() {
 	var logSys *log.Logger
 	flags := log.LstdFlags
 
+	ethutil.ReadConfig(DataDir)
+	logger := ethutil.Config.Log
+
 	if LogFile != "" {
-		logfile, err := os.OpenFile(LogFile, os.O_RDWR | os.O_CREATE | os.O_APPEND, 0666)
+		logfile, err := os.OpenFile(LogFile, os.O_RDWR|os.O_CREATE|os.O_APPEND, 0666)
 		if err != nil {
 			panic(fmt.Sprintf("error opening log file '%s': %v", LogFile, err))
 		}
 		defer logfile.Close()
 		log.SetOutput(logfile)
 		logSys = log.New(logfile, "", flags)
-  } else {
-  	logSys = log.New(os.Stdout, "", flags)
-  }
-	ethutil.ReadConfig(DataDir)
-	logger := ethutil.Config.Log
 		logger.AddLogSystem(logSys)
+	}
+	/*else {
+		logSys = log.New(os.Stdout, "", flags)
+	}*/
 
 	ethchain.InitFees()
 	ethutil.Config.Seed = UseSeed
@@ -101,9 +103,6 @@ func main() {
 			}
 		}
 		os.Exit(0)
-	case len(ImportKey) == 0:
-		utils.CreateKeyPair(false)
-		fallthrough
 	case ExportKey:
 		key := ethutil.Config.Db.GetKeys()[0]
 		logSys.Println(fmt.Sprintf("prvk: %x\n", key.PrivateKey))
@@ -111,6 +110,9 @@ func main() {
 	case ShowGenesis:
 		logSys.Println(ethereum.BlockChain().Genesis())
 		os.Exit(0)
+	default:
+		// Creates a keypair if non exists
+		utils.CreateKeyPair(false)
 	}
 
 	// client