Update balance label when mining

cmd/mist/assets/qml/views/wallet.qml

@@ -15,6 +15,17 @@ Rectangle {
 	objectName: "walletView"
 	anchors.fill: parent
 
+        Label {
+            objectName: "balanceLabel"
+            visible: false
+            font.pixelSize: 10
+            anchors.right: lastBlockLabel.left
+            anchors.rightMargin: 5
+	    onTextChanged: {
+		menuItem.secondaryTitle = text
+	    }
+        }
+
 	function onReady() {
 		setBalance()
 	}

cmd/mist/gui.go

@@ -412,7 +412,9 @@ func (gui *Gui) update() {
 			switch ev := ev.(type) {
 			case core.NewBlockEvent:
 				gui.processBlock(ev.Block, false)
-				gui.setWalletValue(gui.eth.ChainManager().State().GetBalance(gui.address()), nil)
+				//gui.setWalletValue(gui.eth.ChainManager().State().GetBalance(gui.address()), nil)
+				balance := ethutil.CurrencyToString(gui.eth.ChainManager().State().GetBalance(gui.address()))
+				gui.getObjectByName("balanceLabel").Set("text", fmt.Sprintf("%v", balance))
 
 			case core.TxPreEvent:
 				tx := ev.Tx

core/types/block.go

@@ -6,6 +6,7 @@ import (
 	"math/big"
 	"sort"
 	"time"
+
 	"github.com/ethereum/go-ethereum/crypto"
 	"github.com/ethereum/go-ethereum/ethutil"
 	"github.com/ethereum/go-ethereum/rlp"
@@ -175,6 +176,7 @@ func (self *Block) RlpDataForStorage() interface{} {
 // Header accessors (add as you need them)
 func (self *Block) Number() *big.Int          { return self.header.Number }
 func (self *Block) NumberU64() uint64         { return self.header.Number.Uint64() }
+func (self *Block) Nonce() []byte             { return self.header.Nonce }
 func (self *Block) Bloom() []byte             { return self.header.Bloom }
 func (self *Block) Coinbase() []byte          { return self.header.Coinbase }
 func (self *Block) Time() int64               { return int64(self.header.Time) }

miner/worker.go

@@ -127,7 +127,8 @@ out:
 func (self *worker) wait() {
 	for {
 		for work := range self.recv {
-			if self.current.block.Number().Uint64() == work.Number {
+			block := self.current.block
+			if block.Number().Uint64() == work.Number && block.Nonce() == nil {
 				self.current.block.Header().Nonce = work.Nonce
 
 				self.chain.InsertChain(types.Blocks{self.current.block})