Added some ui elements to make it easier to connect to nodes

ui/gui.go

@@ -12,27 +12,13 @@ import (
 	"time"
 )
 
-type Gui struct {
-	win       *qml.Window
-	engine    *qml.Engine
-	component *qml.Common
-	eth       *eth.Ethereum
-
-	// The Ethereum library
-	lib *EthLib
-}
-
-func New(ethereum *eth.Ethereum) *Gui {
-	lib := &EthLib{blockManager: ethereum.BlockManager, blockChain: ethereum.BlockManager.BlockChain(), txPool: ethereum.TxPool}
-
-	return &Gui{eth: ethereum, lib: lib}
-}
-
+// Block interface exposed to QML
 type Block struct {
 	Number int
 	Hash   string
 }
 
+// Creates a new QML Block from a chain block
 func NewBlockFromBlock(block *ethchain.Block) *Block {
 	info := block.BlockInfo()
 	hash := hex.EncodeToString(block.Hash())
@@ -40,13 +26,42 @@ func NewBlockFromBlock(block *ethchain.Block) *Block {
 	return &Block{Number: int(info.Number), Hash: hash}
 }
 
+type Gui struct {
+	// The main application window
+	win *qml.Window
+	// QML Engine
+	engine    *qml.Engine
+	component *qml.Common
+	// The ethereum interface
+	eth *eth.Ethereum
+
+	// The public Ethereum library
+	lib *EthLib
+}
+
+// Create GUI, but doesn't start it
+func New(ethereum *eth.Ethereum) *Gui {
+	lib := &EthLib{blockManager: ethereum.BlockManager, blockChain: ethereum.BlockManager.BlockChain(), txPool: ethereum.TxPool}
+
+	data, _ := ethutil.Config.Db.Get([]byte("KeyRing"))
+	keyRing := ethutil.NewValueFromBytes(data)
+	addr := keyRing.Get(1).Bytes()
+
+	ethereum.BlockManager.WatchAddr(addr)
+
+	return &Gui{eth: ethereum, lib: lib}
+}
+
 func (ui *Gui) Start() {
-	qml.RegisterTypes("GoExtensions", 1, 0, []qml.TypeSpec{{
+	// Register ethereum functions
+	qml.RegisterTypes("Ethereum", 1, 0, []qml.TypeSpec{{
 		Init: func(p *Block, obj qml.Object) { p.Number = 0; p.Hash = "" },
 	}})
 
 	ethutil.Config.Log.Infoln("[GUI] Starting GUI")
+	// Create a new QML engine
 	ui.engine = qml.NewEngine()
+	// Load the main QML interface
 	component, err := ui.engine.LoadFile("wallet.qml")
 	if err != nil {
 		panic(err)
@@ -55,13 +70,18 @@ func (ui *Gui) Start() {
 	ui.win = component.CreateWindow(nil)
 
 	context := ui.engine.Context()
+
+	// Expose the eth library and the ui library to QML
 	context.SetVar("eth", ui.lib)
 	context.SetVar("ui", &UiLib{engine: ui.engine, eth: ui.eth})
 
+	// Register the ui as a block processor
 	ui.eth.BlockManager.SecondaryBlockProcessor = ui
 
+	// Add the ui as a log system so we can log directly to the UGI
 	ethutil.Config.Log.AddLogSystem(ui)
 
+	// Loads previous blocks
 	go ui.setInitialBlockChain()
 	go ui.updatePeers()
 
@@ -70,6 +90,7 @@ func (ui *Gui) Start() {
 }
 
 func (ui *Gui) setInitialBlockChain() {
+	// Load previous 10 blocks
 	chain := ui.eth.BlockManager.BlockChain().GetChain(ui.eth.BlockManager.BlockChain().CurrentBlock.Hash(), 10)
 	for _, block := range chain {
 		ui.ProcessBlock(block)
@@ -81,17 +102,24 @@ func (ui *Gui) ProcessBlock(block *ethchain.Block) {
 	ui.win.Root().Call("addBlock", NewBlockFromBlock(block))
 }
 
+// Logging functions that log directly to the GUI interface
 func (ui *Gui) Println(v ...interface{}) {
-	str := fmt.Sprintln(v...)
-	// remove last \n
-	ui.win.Root().Call("addLog", str[:len(str)-1])
+	str := strings.TrimRight(fmt.Sprintln(v...), "\n")
+	lines := strings.Split(str, "\n")
+	for _, line := range lines {
+		ui.win.Root().Call("addLog", line)
+	}
 }
 
 func (ui *Gui) Printf(format string, v ...interface{}) {
 	str := strings.TrimRight(fmt.Sprintf(format, v...), "\n")
-	ui.win.Root().Call("addLog", str)
+	lines := strings.Split(str, "\n")
+	for _, line := range lines {
+		ui.win.Root().Call("addLog", line)
+	}
 }
 
+// Simple go routine function that updates the list of peers in the GUI
 func (ui *Gui) updatePeers() {
 	for {
 		ui.win.Root().Call("setPeers", fmt.Sprintf("%d / %d", ui.eth.Peers().Len(), ui.eth.MaxPeers))
@@ -99,11 +127,14 @@ func (ui *Gui) updatePeers() {
 	}
 }
 
+// UI Library that has some basic functionality exposed
 type UiLib struct {
-	engine *qml.Engine
-	eth    *eth.Ethereum
+	engine    *qml.Engine
+	eth       *eth.Ethereum
+	connected bool
 }
 
+// Opens a QML file (external application)
 func (ui *UiLib) Open(path string) {
 	component, err := ui.engine.LoadFile(path[7:])
 	if err != nil {
@@ -118,7 +149,13 @@ func (ui *UiLib) Open(path string) {
 }
 
 func (ui *UiLib) Connect() {
-	ui.eth.Start()
+	if !ui.connected {
+		ui.eth.Start()
+	}
+}
+
+func (ui *UiLib) ConnectToPeer(addr string) {
+	ui.eth.ConnectToPeer(addr)
 }
 
 type Tester struct {