148 lines
3.1 KiB
Go
148 lines
3.1 KiB
Go
package main
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import (
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"encoding/json"
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"errors"
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"fmt"
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"io/ioutil"
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"net/url"
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"os"
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"path"
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"path/filepath"
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"github.com/ethereum/go-ethereum/ethchain"
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"github.com/ethereum/go-ethereum/ethpipe"
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"github.com/ethereum/go-ethereum/ethstate"
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"github.com/ethereum/go-ethereum/ethutil"
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"github.com/ethereum/go-ethereum/javascript"
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"github.com/howeyc/fsnotify"
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"gopkg.in/qml.v1"
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)
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type HtmlApplication struct {
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win *qml.Window
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webView qml.Object
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engine *qml.Engine
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lib *UiLib
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path string
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watcher *fsnotify.Watcher
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}
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func NewHtmlApplication(path string, lib *UiLib) *HtmlApplication {
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engine := qml.NewEngine()
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return &HtmlApplication{engine: engine, lib: lib, path: path}
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}
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func (app *HtmlApplication) Create() error {
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component, err := app.engine.LoadFile(app.lib.AssetPath("qml/webapp.qml"))
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if err != nil {
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return err
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}
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if filepath.Ext(app.path) == "eth" {
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return errors.New("Ethereum package not yet supported")
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// TODO
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//ethutil.OpenPackage(app.path)
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}
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win := component.CreateWindow(nil)
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win.Set("url", app.path)
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webView := win.ObjectByName("webView")
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app.win = win
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app.webView = webView
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return nil
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}
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func (app *HtmlApplication) RootFolder() string {
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folder, err := url.Parse(app.path)
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if err != nil {
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return ""
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}
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return path.Dir(ethutil.WindonizePath(folder.RequestURI()))
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}
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func (app *HtmlApplication) RecursiveFolders() []os.FileInfo {
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files, _ := ioutil.ReadDir(app.RootFolder())
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var folders []os.FileInfo
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for _, file := range files {
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if file.IsDir() {
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folders = append(folders, file)
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}
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}
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return folders
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}
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func (app *HtmlApplication) NewWatcher(quitChan chan bool) {
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var err error
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app.watcher, err = fsnotify.NewWatcher()
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if err != nil {
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logger.Infoln("Could not create new auto-reload watcher:", err)
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return
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}
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err = app.watcher.Watch(app.RootFolder())
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if err != nil {
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logger.Infoln("Could not start auto-reload watcher:", err)
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return
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}
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for _, folder := range app.RecursiveFolders() {
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fullPath := app.RootFolder() + "/" + folder.Name()
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app.watcher.Watch(fullPath)
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}
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go func() {
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out:
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for {
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select {
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case <-quitChan:
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app.watcher.Close()
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break out
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case <-app.watcher.Event:
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//logger.Debugln("Got event:", ev)
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app.webView.Call("reload")
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case err := <-app.watcher.Error:
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// TODO: Do something here
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logger.Infoln("Watcher error:", err)
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}
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}
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}()
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}
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func (app *HtmlApplication) Engine() *qml.Engine {
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return app.engine
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}
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func (app *HtmlApplication) Window() *qml.Window {
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return app.win
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}
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func (app *HtmlApplication) NewBlock(block *ethchain.Block) {
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b := ðpipe.JSBlock{Number: int(block.BlockInfo().Number), Hash: ethutil.Bytes2Hex(block.Hash())}
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app.webView.Call("onNewBlockCb", b)
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}
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func (self *HtmlApplication) Messages(messages ethstate.Messages, id string) {
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var msgs []javascript.JSMessage
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for _, m := range messages {
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msgs = append(msgs, javascript.NewJSMessage(m))
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}
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b, _ := json.Marshal(msgs)
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self.webView.Call("onWatchedCb", string(b), id)
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}
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func (app *HtmlApplication) Destroy() {
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app.engine.Destroy()
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}
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func (app *HtmlApplication) Post(data string, seed int) {
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fmt.Println("about to call 'post'")
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app.webView.Call("post", seed, data)
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}
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