plugeth/cmd/mist/gui.go

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// 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
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package main
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import "C"
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import (
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"bytes"
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"encoding/json"
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"fmt"
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"math/big"
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"path"
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"runtime"
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"strconv"
"strings"
"time"
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"github.com/ethereum/go-ethereum"
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"github.com/ethereum/go-ethereum/chain"
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/ethutil"
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"github.com/ethereum/go-ethereum/logger"
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"github.com/ethereum/go-ethereum/miner"
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"github.com/ethereum/go-ethereum/wire"
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"github.com/ethereum/go-ethereum/xeth"
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"gopkg.in/qml.v1"
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)
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/*
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func LoadExtension(path string) (uintptr, error) {
lib, err := ffi.NewLibrary(path)
if err != nil {
return 0, err
}
so, err := lib.Fct("sharedObject", ffi.Pointer, nil)
if err != nil {
return 0, err
}
ptr := so()
err = lib.Close()
if err != nil {
return 0, err
}
return ptr.Interface().(uintptr), nil
}
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*/
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var guilogger = logger.NewLogger("GUI")
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type Gui struct {
// The main application window
win *qml.Window
// QML Engine
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engine *qml.Engine
component *qml.Common
qmlDone bool
// The ethereum interface
eth *eth.Ethereum
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// The public Ethereum library
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uiLib *UiLib
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txDb *ethdb.LDBDatabase
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logLevel logger.LogLevel
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open bool
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pipe *xeth.JSXEth
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Session string
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clientIdentity *wire.SimpleClientIdentity
config *ethutil.ConfigManager
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plugins map[string]plugin
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miner *miner.Miner
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stdLog logger.LogSystem
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}
// Create GUI, but doesn't start it
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func NewWindow(ethereum *eth.Ethereum, config *ethutil.ConfigManager, clientIdentity *wire.SimpleClientIdentity, session string, logLevel int) *Gui {
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db, err := ethdb.NewLDBDatabase("tx_database")
if err != nil {
panic(err)
}
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pipe := xeth.NewJSXEth(ethereum)
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gui := &Gui{eth: ethereum, txDb: db, pipe: pipe, logLevel: logger.LogLevel(logLevel), Session: session, open: false, clientIdentity: clientIdentity, config: config, plugins: make(map[string]plugin)}
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data, _ := ethutil.ReadAllFile(path.Join(ethutil.Config.ExecPath, "plugins.json"))
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json.Unmarshal([]byte(data), &gui.plugins)
return gui
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}
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func (gui *Gui) Start(assetPath string) {
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defer gui.txDb.Close()
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// Register ethereum functions
qml.RegisterTypes("Ethereum", 1, 0, []qml.TypeSpec{{
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Init: func(p *xeth.JSBlock, obj qml.Object) { p.Number = 0; p.Hash = "" },
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}, {
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Init: func(p *xeth.JSTransaction, obj qml.Object) { p.Value = ""; p.Hash = ""; p.Address = "" },
}, {
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Init: func(p *xeth.KeyVal, obj qml.Object) { p.Key = ""; p.Value = "" },
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}})
// Create a new QML engine
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gui.engine = qml.NewEngine()
context := gui.engine.Context()
gui.uiLib = NewUiLib(gui.engine, gui.eth, assetPath)
// Expose the eth library and the ui library to QML
context.SetVar("gui", gui)
context.SetVar("eth", gui.uiLib)
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/*
vec, errr := LoadExtension("/Users/jeffrey/Desktop/build-libqmltest-Desktop_Qt_5_2_1_clang_64bit-Debug/liblibqmltest_debug.dylib")
fmt.Printf("Fetched vec with addr: %#x\n", vec)
if errr != nil {
fmt.Println(errr)
} else {
context.SetVar("vec", (unsafe.Pointer)(vec))
}
*/
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// Load the main QML interface
data, _ := ethutil.Config.Db.Get([]byte("KeyRing"))
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var win *qml.Window
var err error
var addlog = false
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if len(data) == 0 {
win, err = gui.showKeyImport(context)
} else {
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win, err = gui.showWallet(context)
addlog = true
}
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if err != nil {
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guilogger.Errorln("asset not found: you can set an alternative asset path on the command line using option 'asset_path'", err)
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panic(err)
}
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guilogger.Infoln("Starting GUI")
gui.open = true
win.Show()
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// only add the gui guilogger after window is shown otherwise slider wont be shown
if addlog {
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logger.AddLogSystem(gui)
}
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win.Wait()
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// need to silence gui guilogger after window closed otherwise logsystem hangs (but do not save loglevel)
gui.logLevel = logger.Silence
gui.open = false
}
func (gui *Gui) Stop() {
if gui.open {
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gui.logLevel = logger.Silence
gui.open = false
gui.win.Hide()
}
gui.uiLib.jsEngine.Stop()
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guilogger.Infoln("Stopped")
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}
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func (gui *Gui) showWallet(context *qml.Context) (*qml.Window, error) {
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component, err := gui.engine.LoadFile(gui.uiLib.AssetPath("qml/main.qml"))
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if err != nil {
return nil, err
}
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gui.win = gui.createWindow(component)
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gui.update()
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return gui.win, nil
}
// The done handler will be called by QML when all views have been loaded
func (gui *Gui) Done() {
gui.qmlDone = true
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}
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func (gui *Gui) ImportKey(filePath string) {
}
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func (gui *Gui) showKeyImport(context *qml.Context) (*qml.Window, error) {
context.SetVar("lib", gui)
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component, err := gui.engine.LoadFile(gui.uiLib.AssetPath("qml/first_run.qml"))
if err != nil {
return nil, err
}
return gui.createWindow(component), nil
}
func (gui *Gui) createWindow(comp qml.Object) *qml.Window {
win := comp.CreateWindow(nil)
gui.win = win
gui.uiLib.win = win
return gui.win
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}
func (gui *Gui) ImportAndSetPrivKey(secret string) bool {
err := gui.eth.KeyManager().InitFromString(gui.Session, 0, secret)
if err != nil {
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guilogger.Errorln("unable to import: ", err)
return false
}
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guilogger.Errorln("successfully imported: ", err)
return true
}
func (gui *Gui) CreateAndSetPrivKey() (string, string, string, string) {
err := gui.eth.KeyManager().Init(gui.Session, 0, true)
if err != nil {
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guilogger.Errorln("unable to create key: ", err)
return "", "", "", ""
}
return gui.eth.KeyManager().KeyPair().AsStrings()
}
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func (gui *Gui) setInitialChainManager() {
sBlk := gui.eth.ChainManager().LastBlockHash
blk := gui.eth.ChainManager().GetBlock(sBlk)
for ; blk != nil; blk = gui.eth.ChainManager().GetBlock(sBlk) {
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sBlk = blk.PrevHash
addr := gui.address()
// Loop through all transactions to see if we missed any while being offline
for _, tx := range blk.Transactions() {
if bytes.Compare(tx.Sender(), addr) == 0 || bytes.Compare(tx.Recipient, addr) == 0 {
if ok, _ := gui.txDb.Get(tx.Hash()); ok == nil {
gui.txDb.Put(tx.Hash(), tx.RlpEncode())
}
}
}
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gui.processBlock(blk, true)
}
}
type address struct {
Name, Address string
}
func (gui *Gui) loadAddressBook() {
view := gui.getObjectByName("infoView")
view.Call("clearAddress")
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nameReg := gui.pipe.World().Config().Get("NameReg")
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if nameReg != nil {
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nameReg.EachStorage(func(name string, value *ethutil.Value) {
if name[0] != 0 {
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value.Decode()
view.Call("addAddress", struct{ Name, Address string }{name, ethutil.Bytes2Hex(value.Bytes())})
}
})
}
}
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func (gui *Gui) insertTransaction(window string, tx *chain.Transaction) {
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pipe := xeth.New(gui.eth)
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nameReg := pipe.World().Config().Get("NameReg")
addr := gui.address()
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var inout string
if bytes.Compare(tx.Sender(), addr) == 0 {
inout = "send"
} else {
inout = "recv"
}
var (
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ptx = xeth.NewJSTx(tx, pipe.World().State())
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send = nameReg.Storage(tx.Sender())
rec = nameReg.Storage(tx.Recipient)
s, r string
)
if tx.CreatesContract() {
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rec = nameReg.Storage(tx.CreationAddress(pipe.World().State()))
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}
if send.Len() != 0 {
s = strings.Trim(send.Str(), "\x00")
} else {
s = ethutil.Bytes2Hex(tx.Sender())
}
if rec.Len() != 0 {
r = strings.Trim(rec.Str(), "\x00")
} else {
if tx.CreatesContract() {
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r = ethutil.Bytes2Hex(tx.CreationAddress(pipe.World().State()))
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} else {
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r = ethutil.Bytes2Hex(tx.Recipient)
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}
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}
ptx.Sender = s
ptx.Address = r
if window == "post" {
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//gui.getObjectByName("transactionView").Call("addTx", ptx, inout)
} else {
gui.getObjectByName("pendingTxView").Call("addTx", ptx, inout)
}
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}
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func (gui *Gui) readPreviousTransactions() {
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it := gui.txDb.NewIterator()
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for it.Next() {
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tx := chain.NewTransactionFromBytes(it.Value())
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gui.insertTransaction("post", tx)
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}
it.Release()
}
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func (gui *Gui) processBlock(block *chain.Block, initial bool) {
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name := strings.Trim(gui.pipe.World().Config().Get("NameReg").Storage(block.Coinbase).Str(), "\x00")
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b := xeth.NewJSBlock(block)
b.Name = name
gui.getObjectByName("chainView").Call("addBlock", b, initial)
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}
func (gui *Gui) setWalletValue(amount, unconfirmedFunds *big.Int) {
var str string
if unconfirmedFunds != nil {
pos := "+"
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if unconfirmedFunds.Cmp(big.NewInt(0)) < 0 {
pos = "-"
}
val := ethutil.CurrencyToString(new(big.Int).Abs(ethutil.BigCopy(unconfirmedFunds)))
str = fmt.Sprintf("%v (%s %v)", ethutil.CurrencyToString(amount), pos, val)
} else {
str = fmt.Sprintf("%v", ethutil.CurrencyToString(amount))
}
gui.win.Root().Call("setWalletValue", str)
}
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func (self *Gui) getObjectByName(objectName string) qml.Object {
return self.win.Root().ObjectByName(objectName)
}
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// Simple go routine function that updates the list of peers in the GUI
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func (gui *Gui) update() {
// We have to wait for qml to be done loading all the windows.
for !gui.qmlDone {
time.Sleep(500 * time.Millisecond)
}
go func() {
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go gui.setInitialChainManager()
gui.loadAddressBook()
gui.setPeerInfo()
gui.readPreviousTransactions()
}()
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for _, plugin := range gui.plugins {
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guilogger.Infoln("Loading plugin ", plugin.Name)
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gui.win.Root().Call("addPlugin", plugin.Path, "")
}
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peerUpdateTicker := time.NewTicker(5 * time.Second)
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generalUpdateTicker := time.NewTicker(500 * time.Millisecond)
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statsUpdateTicker := time.NewTicker(5 * time.Second)
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state := gui.eth.BlockManager().TransState()
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unconfirmedFunds := new(big.Int)
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gui.win.Root().Call("setWalletValue", fmt.Sprintf("%v", ethutil.CurrencyToString(state.GetAccount(gui.address()).Balance())))
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lastBlockLabel := gui.getObjectByName("lastBlockLabel")
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miningLabel := gui.getObjectByName("miningLabel")
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events := gui.eth.EventMux().Subscribe(
eth.ChainSyncEvent{},
eth.PeerListEvent{},
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chain.NewBlockEvent{},
chain.TxPreEvent{},
chain.TxPostEvent{},
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miner.Event{},
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)
// nameReg := gui.pipe.World().Config().Get("NameReg")
// mux.Subscribe("object:"+string(nameReg.Address()), objectChan)
go func() {
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defer events.Unsubscribe()
for {
select {
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case ev, isopen := <-events.Chan():
if !isopen {
return
}
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switch ev := ev.(type) {
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case chain.NewBlockEvent:
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gui.processBlock(ev.Block, false)
if bytes.Compare(ev.Block.Coinbase, gui.address()) == 0 {
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gui.setWalletValue(gui.eth.BlockManager().CurrentState().GetAccount(gui.address()).Balance(), nil)
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}
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case chain.TxPreEvent:
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tx := ev.Tx
object := state.GetAccount(gui.address())
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if bytes.Compare(tx.Sender(), gui.address()) == 0 {
unconfirmedFunds.Sub(unconfirmedFunds, tx.Value)
} else if bytes.Compare(tx.Recipient, gui.address()) == 0 {
unconfirmedFunds.Add(unconfirmedFunds, tx.Value)
}
gui.setWalletValue(object.Balance(), unconfirmedFunds)
gui.insertTransaction("pre", tx)
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case chain.TxPostEvent:
tx := ev.Tx
object := state.GetAccount(gui.address())
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if bytes.Compare(tx.Sender(), gui.address()) == 0 {
object.SubAmount(tx.Value)
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//gui.getObjectByName("transactionView").Call("addTx", xeth.NewJSTx(tx), "send")
gui.txDb.Put(tx.Hash(), tx.RlpEncode())
} else if bytes.Compare(tx.Recipient, gui.address()) == 0 {
object.AddAmount(tx.Value)
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//gui.getObjectByName("transactionView").Call("addTx", xeth.NewJSTx(tx), "recv")
gui.txDb.Put(tx.Hash(), tx.RlpEncode())
}
gui.setWalletValue(object.Balance(), nil)
state.UpdateStateObject(object)
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// case object:
// gui.loadAddressBook()
case eth.PeerListEvent:
gui.setPeerInfo()
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case miner.Event:
if ev.Type == miner.Started {
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gui.miner = ev.Miner
} else {
gui.miner = nil
}
}
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case <-peerUpdateTicker.C:
gui.setPeerInfo()
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case <-generalUpdateTicker.C:
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statusText := "#" + gui.eth.ChainManager().CurrentBlock.Number.String()
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lastBlockLabel.Set("text", statusText)
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if gui.miner != nil {
pow := gui.miner.GetPow()
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miningLabel.Set("text", "Mining @ "+strconv.FormatInt(pow.GetHashrate(), 10)+"Khash")
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}
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blockLength := gui.eth.BlockPool().BlocksProcessed
chainLength := gui.eth.BlockPool().ChainLength
var (
pct float64 = 1.0 / float64(chainLength) * float64(blockLength)
dlWidget = gui.win.Root().ObjectByName("downloadIndicator")
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dlLabel = gui.win.Root().ObjectByName("downloadLabel")
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)
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dlWidget.Set("value", pct)
dlLabel.Set("text", fmt.Sprintf("%d / %d", blockLength, chainLength))
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case <-statsUpdateTicker.C:
gui.setStatsPane()
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}
}
}()
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}
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func (gui *Gui) setStatsPane() {
var memStats runtime.MemStats
runtime.ReadMemStats(&memStats)
statsPane := gui.getObjectByName("statsPane")
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statsPane.Set("text", fmt.Sprintf(`###### Mist 0.6.8 (%s) #######
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eth %d (p2p = %d)
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CPU: # %d
Goroutines: # %d
CGoCalls: # %d
Alloc: %d
Heap Alloc: %d
CGNext: %x
NumGC: %d
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`, runtime.Version(),
eth.ProtocolVersion, eth.P2PVersion,
runtime.NumCPU, runtime.NumGoroutine(), runtime.NumCgoCall(),
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memStats.Alloc, memStats.HeapAlloc,
memStats.NextGC, memStats.NumGC,
))
}
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func (gui *Gui) setPeerInfo() {
gui.win.Root().Call("setPeers", fmt.Sprintf("%d / %d", gui.eth.PeerCount(), gui.eth.MaxPeers))
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gui.win.Root().Call("resetPeers")
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for _, peer := range gui.pipe.Peers() {
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gui.win.Root().Call("addPeer", peer)
}
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}
func (gui *Gui) privateKey() string {
return ethutil.Bytes2Hex(gui.eth.KeyManager().PrivateKey())
}
func (gui *Gui) address() []byte {
return gui.eth.KeyManager().Address()
}