mirror of https://github.com/poanetwork/quorum.git
176 lines
3.9 KiB
Go
176 lines
3.9 KiB
Go
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package ethui
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import (
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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/go-qml/qml"
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"math/big"
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)
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type AppContainer interface {
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Create() error
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Destroy()
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Window() *qml.Window
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Engine() *qml.Engine
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NewBlock(*ethchain.Block)
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ObjectChanged(*ethchain.StateObject)
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StorageChanged(*ethchain.StateObject, []byte, *big.Int)
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}
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type ExtApplication struct {
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*QEthereum
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blockChan chan ethutil.React
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changeChan chan ethutil.React
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quitChan chan bool
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container AppContainer
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lib *UiLib
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registeredEvents []string
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}
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func NewExtApplication(container AppContainer, lib *UiLib) *ExtApplication {
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app := &ExtApplication{
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NewQEthereum(lib.eth),
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make(chan ethutil.React, 1),
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make(chan ethutil.React, 1),
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make(chan bool),
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container,
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lib,
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nil,
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}
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return app
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}
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func (app *ExtApplication) run() {
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// Set the "eth" api on to the containers context
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context := app.container.Engine().Context()
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context.SetVar("eth", app)
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context.SetVar("ui", app.lib)
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err := app.container.Create()
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if err != nil {
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fmt.Println(err)
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return
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}
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// Call the main loop
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go app.mainLoop()
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// Subscribe to events
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reactor := app.lib.eth.Reactor()
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reactor.Subscribe("newBlock", app.blockChan)
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win := app.container.Window()
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win.Show()
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win.Wait()
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app.stop()
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}
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func (app *ExtApplication) stop() {
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// Clean up
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reactor := app.lib.eth.Reactor()
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reactor.Unsubscribe("newBlock", app.blockChan)
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for _, event := range app.registeredEvents {
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reactor.Unsubscribe(event, app.changeChan)
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}
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// Kill the main loop
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app.quitChan <- true
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close(app.blockChan)
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close(app.quitChan)
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close(app.changeChan)
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app.container.Destroy()
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}
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func (app *ExtApplication) mainLoop() {
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out:
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for {
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select {
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case <-app.quitChan:
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break out
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case block := <-app.blockChan:
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if block, ok := block.Resource.(*ethchain.Block); ok {
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app.container.NewBlock(block)
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}
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case object := <-app.changeChan:
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if stateObject, ok := object.Resource.(*ethchain.StateObject); ok {
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app.container.ObjectChanged(stateObject)
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} else if _, ok := object.Resource.(*big.Int); ok {
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//
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}
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}
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}
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}
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func (app *ExtApplication) Watch(addr, storageAddr string) {
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var event string
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if len(storageAddr) == 0 {
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event = "storage:" + string(ethutil.FromHex(addr)) + ":" + string(ethutil.FromHex(storageAddr))
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app.lib.eth.Reactor().Subscribe(event, app.changeChan)
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} else {
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event = "object:" + string(ethutil.FromHex(addr))
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app.lib.eth.Reactor().Subscribe(event, app.changeChan)
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}
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app.registeredEvents = append(app.registeredEvents, event)
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}
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type QEthereum struct {
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stateManager *ethchain.StateManager
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blockChain *ethchain.BlockChain
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txPool *ethchain.TxPool
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}
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func NewQEthereum(eth *eth.Ethereum) *QEthereum {
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return &QEthereum{
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eth.StateManager(),
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eth.BlockChain(),
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eth.TxPool(),
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}
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}
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func (lib *QEthereum) GetBlock(hexHash string) *QBlock {
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hash := ethutil.FromHex(hexHash)
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block := lib.blockChain.GetBlock(hash)
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return &QBlock{Number: int(block.BlockInfo().Number), Hash: ethutil.Hex(block.Hash())}
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}
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func (lib *QEthereum) GetKey() string {
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return ethutil.Hex(ethutil.Config.Db.GetKeys()[0].Address())
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}
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func (lib *QEthereum) GetStateObject(address string) *Contract {
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stateObject := lib.stateManager.ProcState().GetContract(ethutil.FromHex(address))
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if stateObject != nil {
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return NewContract(stateObject)
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}
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// See GetStorage for explanation on "nil"
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return NewContract(nil)
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}
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func (lib *QEthereum) Watch(addr, storageAddr string) {
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// lib.stateManager.Watch(ethutil.FromHex(addr), ethutil.FromHex(storageAddr))
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}
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func (lib *QEthereum) CreateTx(recipient, valueStr, gasStr, gasPriceStr, dataStr string) (string, error) {
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return lib.Transact(recipient, valueStr, gasStr, gasPriceStr, dataStr)
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}
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func (lib *QEthereum) Transact(recipient, valueStr, gasStr, gasPriceStr, dataStr string) (string, error) {
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return "", nil
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}
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