Official Go implementation of the Ethereum protocol
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go-ethereum/ethereal/ui/ui_lib.go

84 lines
1.7 KiB

package ethui
import (
"bitbucket.org/kardianos/osext"
"github.com/ethereum/eth-go"
"github.com/ethereum/eth-go/ethutil"
"github.com/niemeyer/qml"
"os"
"path"
"path/filepath"
"runtime"
)
// UI Library that has some basic functionality exposed
type UiLib struct {
engine *qml.Engine
eth *eth.Ethereum
connected bool
assetPath string
}
func NewUiLib(engine *qml.Engine, eth *eth.Ethereum, assetPath string) *UiLib {
if assetPath == "" {
assetPath = DefaultAssetPath()
}
return &UiLib{engine: engine, eth: eth, assetPath: assetPath}
}
// Opens a QML file (external application)
func (ui *UiLib) Open(path string) {
component, err := ui.engine.LoadFile(path[7:])
if err != nil {
ethutil.Config.Log.Debugln(err)
}
win := component.CreateWindow(nil)
go func() {
win.Show()
win.Wait()
}()
}
func (ui *UiLib) Connect(button qml.Object) {
if !ui.connected {
ui.eth.Start()
ui.connected = true
button.Set("enabled", false)
}
}
func (ui *UiLib) ConnectToPeer(addr string) {
ui.eth.ConnectToPeer(addr)
}
func (ui *UiLib) AssetPath(p string) string {
return path.Join(ui.assetPath, p)
}
func DefaultAssetPath() string {
var base string
// If the current working directory is the go-ethereum dir
// assume a debug build and use the source directory as
// asset directory.
pwd, _ := os.Getwd()
if pwd == path.Join(os.Getenv("GOPATH"), "src", "github.com", "ethereum", "go-ethereum", "ethereal") {
base = path.Join(pwd, "assets")
} else {
switch runtime.GOOS {
case "darwin":
// Get Binary Directory
exedir, _ := osext.ExecutableFolder()
base = filepath.Join(exedir, "../Resources")
case "linux":
base = "/usr/share/ethereal"
case "window":
fallthrough
default:
base = "."
}
}
return base
}