2014-02-25 01:54:15 -08:00
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package ethui
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import (
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2014-03-02 15:54:41 -08:00
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"bitbucket.org/kardianos/osext"
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"fmt"
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"github.com/ethereum/eth-go"
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"github.com/ethereum/eth-go/ethchain"
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"github.com/ethereum/eth-go/ethutil"
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"github.com/niemeyer/qml"
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"github.com/obscuren/mutan"
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"math/big"
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"os"
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"path"
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"path/filepath"
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"runtime"
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"strings"
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)
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// UI Library that has some basic functionality exposed
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type UiLib struct {
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engine *qml.Engine
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eth *eth.Ethereum
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connected bool
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assetPath string
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// The main application window
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win *qml.Window
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}
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func NewUiLib(engine *qml.Engine, eth *eth.Ethereum, assetPath string) *UiLib {
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if assetPath == "" {
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assetPath = DefaultAssetPath()
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}
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return &UiLib{engine: engine, eth: eth, assetPath: assetPath}
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}
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// Opens a QML file (external application)
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func (ui *UiLib) Open(path string) {
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component, err := ui.engine.LoadFile(path[7:])
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if err != nil {
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ethutil.Config.Log.Debugln(err)
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}
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win := component.CreateWindow(nil)
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go func() {
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win.Show()
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win.Wait()
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}()
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}
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func (ui *UiLib) Connect(button qml.Object) {
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if !ui.connected {
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ui.eth.Start()
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ui.connected = true
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button.Set("enabled", false)
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}
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}
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func (ui *UiLib) ConnectToPeer(addr string) {
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ui.eth.ConnectToPeer(addr)
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}
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func (ui *UiLib) AssetPath(p string) string {
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return path.Join(ui.assetPath, p)
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}
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func DefaultAssetPath() string {
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var base string
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// If the current working directory is the go-ethereum dir
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// assume a debug build and use the source directory as
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// asset directory.
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pwd, _ := os.Getwd()
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if pwd == path.Join(os.Getenv("GOPATH"), "src", "github.com", "ethereum", "go-ethereum", "ethereal") {
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base = path.Join(pwd, "assets")
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} else {
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switch runtime.GOOS {
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case "darwin":
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// Get Binary Directory
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exedir, _ := osext.ExecutableFolder()
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base = filepath.Join(exedir, "../Resources")
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case "linux":
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base = "/usr/share/ethereal"
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case "window":
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fallthrough
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default:
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base = "."
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}
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}
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return base
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}
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type memAddr struct {
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Num string
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Value string
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}
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func (ui *UiLib) DebugTx(recipient, valueStr, gasStr, gasPriceStr, data string) (string, error) {
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state := ui.eth.BlockChain().CurrentBlock.State()
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asm, err := mutan.Compile(strings.NewReader(data), false)
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if err != nil {
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fmt.Println(err)
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}
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callerScript := ethutil.Assemble(asm...)
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dis := ethchain.Disassemble(callerScript)
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ui.win.Root().Call("clearAsm")
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for _, str := range dis {
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ui.win.Root().Call("setAsm", str)
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}
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callerTx := ethchain.NewContractCreationTx(ethutil.Big(valueStr), ethutil.Big(gasPriceStr), callerScript)
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// Contract addr as test address
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keyPair := ethutil.Config.Db.GetKeys()[0]
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account := ui.eth.StateManager().GetAddrState(keyPair.Address()).Account
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c := ethchain.MakeContract(callerTx, state)
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callerClosure := ethchain.NewClosure(account, c, c.Script(), state, ethutil.Big(gasStr), new(big.Int))
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block := ui.eth.BlockChain().CurrentBlock
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vm := ethchain.NewVm(state, ethchain.RuntimeVars{
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Origin: account.Address(),
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BlockNumber: block.BlockInfo().Number,
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PrevHash: block.PrevHash,
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Coinbase: block.Coinbase,
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Time: block.Time,
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Diff: block.Difficulty,
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TxData: nil,
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})
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callerClosure.Call(vm, nil, func(op ethchain.OpCode, mem *ethchain.Memory, stack *ethchain.Stack) {
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ui.win.Root().Call("clearMem")
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ui.win.Root().Call("clearStack")
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addr := 0
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for i := 0; i+32 <= mem.Len(); i += 32 {
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ui.win.Root().Call("setMem", memAddr{fmt.Sprintf("%03d", addr), fmt.Sprintf("% x", mem.Data()[i:i+32])})
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addr++
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}
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for _, val := range stack.Data() {
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ui.win.Root().Call("setStack", val.String())
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}
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})
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state.Reset()
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return "", nil
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}
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