v2.0.0-alpha.22

runtime/js/.eslintrc

@@ -3,12 +3,12 @@
         "browser": true,
         "es6": true,
         "amd": true,
-        "node": true,
+        "node": true
     },
     "extends": "eslint:recommended",
     "parserOptions": {
         "ecmaVersion": 2016,
-        "sourceType": "module",
+        "sourceType": "module"
     },
     "rules": {
         "indent": [

v2/cmd/wails/internal/commands/dev/dev.go

@@ -10,9 +10,10 @@ import (
 	"syscall"
 	"time"
 
+	"github.com/pkg/errors"
+
 	"github.com/fsnotify/fsnotify"
 	"github.com/leaanthony/clir"
-	"github.com/leaanthony/slicer"
 	"github.com/wailsapp/wails/v2/internal/fs"
 	"github.com/wailsapp/wails/v2/internal/process"
 	"github.com/wailsapp/wails/v2/pkg/clilogger"
@@ -24,14 +25,6 @@ func AddSubcommand(app *clir.Cli, w io.Writer) error {
 
 	command := app.NewSubCommand("dev", "Development mode")
 
-	outputType := "desktop"
-
-	validTargetTypes := slicer.String([]string{"desktop", "hybrid", "server"})
-
-	// Setup target type flag
-	description := "Type of application to develop. Valid types: " + validTargetTypes.Join(",")
-	command.StringFlag("t", description, &outputType)
-
 	// Passthrough ldflags
 	ldflags := ""
 	command.StringFlag("ldflags", "optional ldflags", &ldflags)
@@ -42,15 +35,10 @@ func AddSubcommand(app *clir.Cli, w io.Writer) error {
 
 	// extensions to trigger rebuilds
 	extensions := "go"
-	command.StringFlag("m", "Extensions to trigger rebuilds (comma separated) eg go,js,css,html", &extensions)
+	command.StringFlag("e", "Extensions to trigger rebuilds (comma separated) eg go,js,css,html", &extensions)
 
 	command.Action(func() error {
 
-		// Validate inputs
-		if !validTargetTypes.Contains(outputType) {
-			return fmt.Errorf("output type '%s' is not valid", outputType)
-		}
-
 		// Create logger
 		logger := clilogger.New(w)
 		app.PrintBanner()
@@ -64,7 +52,7 @@ func AddSubcommand(app *clir.Cli, w io.Writer) error {
 		defer watcher.Close()
 
 		var debugBinaryProcess *process.Process = nil
-		var buildFrontend bool = true
+		var buildFrontend bool = false
 		var extensionsThatTriggerARebuild = strings.Split(extensions, ",")
 
 		// Setup signal handler
@@ -75,8 +63,10 @@ func AddSubcommand(app *clir.Cli, w io.Writer) error {
 
 		// Do initial build
 		logger.Println("Building application for development...")
-		debugBinaryProcess = restartApp(logger, outputType, ldflags, compilerCommand, buildFrontend, debugBinaryProcess)
-
+		debugBinaryProcess, err = restartApp(logger, "dev", ldflags, compilerCommand, debugBinaryProcess)
+		if err != nil {
+			return err
+		}
 		go debounce(100*time.Millisecond, watcher.Events, debounceQuit, func(event fsnotify.Event) {
 			// logger.Println("event: %+v", event)
 
@@ -98,7 +88,7 @@ func AddSubcommand(app *clir.Cli, w io.Writer) error {
 			// Check for file writes
 			if event.Op&fsnotify.Write == fsnotify.Write {
 
-				// logger.Println("modified file: %s", event.Name)
+				logger.Println("modified file: %s", event.Name)
 				var rebuild bool = false
 
 				// Iterate all file patterns
@@ -119,17 +109,16 @@ func AddSubcommand(app *clir.Cli, w io.Writer) error {
 					return
 				}
 
-				if buildFrontend {
-					logger.Println("Full rebuild triggered: %s updated", event.Name)
-				} else {
-					logger.Println("Partial build triggered: %s updated", event.Name)
-				}
+				logger.Println("Partial build triggered: %s updated", event.Name)
 
 				// Do a rebuild
 
 				// Try and build the app
-				newBinaryProcess := restartApp(logger, outputType, ldflags, compilerCommand, buildFrontend, debugBinaryProcess)
-
+				newBinaryProcess, err := restartApp(logger, "dev", ldflags, compilerCommand, debugBinaryProcess)
+				if err != nil {
+					fmt.Printf("Error during build: %s", err.Error())
+					return
+				}
 				// If we have a new process, save it
 				if newBinaryProcess != nil {
 					debugBinaryProcess = newBinaryProcess
@@ -167,7 +156,7 @@ func AddSubcommand(app *clir.Cli, w io.Writer) error {
 		for quit == false {
 			select {
 			case <-quitChannel:
-				println()
+				println("Caught quit")
 				// Notify debouncer to quit
 				debounceQuit <- true
 				quit = true
@@ -209,13 +198,13 @@ exit:
 	}
 }
 
-func restartApp(logger *clilogger.CLILogger, outputType string, ldflags string, compilerCommand string, buildFrontend bool, debugBinaryProcess *process.Process) *process.Process {
+func restartApp(logger *clilogger.CLILogger, outputType string, ldflags string, compilerCommand string, debugBinaryProcess *process.Process) (*process.Process, error) {
 
-	appBinary, err := buildApp(logger, outputType, ldflags, compilerCommand, buildFrontend)
+	appBinary, err := buildApp(logger, outputType, ldflags, compilerCommand)
 	println()
 	if err != nil {
-		logger.Println("[ERROR] Build Failed: %s", err.Error())
-		return nil
+		logger.Fatal(err.Error())
+		return nil, errors.Wrap(err, "Build Failed:")
 	}
 	logger.Println("Build new binary: %s", appBinary)
 
@@ -244,10 +233,10 @@ func restartApp(logger *clilogger.CLILogger, outputType string, ldflags string,
 		logger.Fatal("Unable to start application: %s", err.Error())
 	}
 
-	return newProcess
+	return newProcess, nil
 }
 
-func buildApp(logger *clilogger.CLILogger, outputType string, ldflags string, compilerCommand string, buildFrontend bool) (string, error) {
+func buildApp(logger *clilogger.CLILogger, outputType string, ldflags string, compilerCommand string) (string, error) {
 
 	// Create random output file
 	outputFile := fmt.Sprintf("debug-%d", time.Now().Unix())
@@ -262,7 +251,7 @@ func buildApp(logger *clilogger.CLILogger, outputType string, ldflags string, co
 		LDFlags:        ldflags,
 		Compiler:       compilerCommand,
 		OutputFile:     outputFile,
-		IgnoreFrontend: !buildFrontend,
+		IgnoreFrontend: true,
 	}
 
 	return build.Build(buildOptions)

v2/cmd/wails/version.go

@@ -1,3 +1,3 @@
 package main
 
-var version = "v2.0.0-alpha.21"
+var version = "v2.0.0-alpha.22"

v2/go.mod

@@ -7,6 +7,7 @@ require (
 	github.com/davecgh/go-spew v1.1.1
 	github.com/fatih/structtag v1.2.0
 	github.com/fsnotify/fsnotify v1.4.9
+	github.com/gorilla/websocket v1.4.1
 	github.com/imdario/mergo v0.3.11
 	github.com/jackmordaunt/icns v1.0.0
 	github.com/leaanthony/clir v1.0.4

v2/internal/app/default.go

@@ -1,4 +1,4 @@
-// +build !desktop,!hybrid,!server
+// +build !desktop,!hybrid,!server,!dev
 
 package app
 

v2/internal/app/desktop.go

@@ -231,7 +231,5 @@ func (a *App) Run() error {
 		return err
 	}
 
-	println("Desktop.Run() finished")
-
 	return nil
 }

v2/internal/app/dev.go

@@ -0,0 +1,237 @@
+// +build dev
+
+package app
+
+import (
+	"context"
+	"sync"
+
+	"github.com/wailsapp/wails/v2/internal/bridge"
+	"github.com/wailsapp/wails/v2/internal/menumanager"
+
+	"github.com/wailsapp/wails/v2/pkg/options"
+
+	"github.com/wailsapp/wails/v2/internal/binding"
+	"github.com/wailsapp/wails/v2/internal/logger"
+	"github.com/wailsapp/wails/v2/internal/messagedispatcher"
+	"github.com/wailsapp/wails/v2/internal/runtime"
+	"github.com/wailsapp/wails/v2/internal/servicebus"
+	"github.com/wailsapp/wails/v2/internal/signal"
+	"github.com/wailsapp/wails/v2/internal/subsystem"
+)
+
+// App defines a Wails application structure
+type App struct {
+	appType string
+
+	servicebus *servicebus.ServiceBus
+	logger     *logger.Logger
+	signal     *signal.Manager
+	options    *options.App
+
+	// Subsystems
+	log     *subsystem.Log
+	runtime *subsystem.Runtime
+	event   *subsystem.Event
+	//binding    *subsystem.Binding
+	call       *subsystem.Call
+	menu       *subsystem.Menu
+	dispatcher *messagedispatcher.Dispatcher
+
+	menuManager *menumanager.Manager
+
+	// Indicates if the app is in debug mode
+	debug bool
+
+	// This is our binding DB
+	bindings *binding.Bindings
+
+	// Application Stores
+	loglevelStore  *runtime.Store
+	appconfigStore *runtime.Store
+
+	// Startup/Shutdown
+	startupCallback  func(*runtime.Runtime)
+	shutdownCallback func()
+
+	// Bridge
+	bridge *bridge.Bridge
+}
+
+// Create App
+func CreateApp(appoptions *options.App) (*App, error) {
+
+	// Merge default options
+	options.MergeDefaults(appoptions)
+
+	// Set up logger
+	myLogger := logger.New(appoptions.Logger)
+	myLogger.SetLogLevel(appoptions.LogLevel)
+
+	// Create the menu manager
+	menuManager := menumanager.NewManager()
+
+	// Process the application menu
+	menuManager.SetApplicationMenu(options.GetApplicationMenu(appoptions))
+
+	// Process context menus
+	contextMenus := options.GetContextMenus(appoptions)
+	for _, contextMenu := range contextMenus {
+		menuManager.AddContextMenu(contextMenu)
+	}
+
+	// Process tray menus
+	trayMenus := options.GetTrayMenus(appoptions)
+	for _, trayMenu := range trayMenus {
+		menuManager.AddTrayMenu(trayMenu)
+	}
+
+	// Create binding exemptions - Ugly hack. There must be a better way
+	bindingExemptions := []interface{}{appoptions.Startup, appoptions.Shutdown}
+
+	result := &App{
+		appType:          "dev",
+		bindings:         binding.NewBindings(myLogger, appoptions.Bind, bindingExemptions),
+		logger:           myLogger,
+		servicebus:       servicebus.New(myLogger),
+		startupCallback:  appoptions.Startup,
+		shutdownCallback: appoptions.Shutdown,
+		bridge:           bridge.NewBridge(myLogger),
+	}
+
+	result.options = appoptions
+
+	// Initialise the app
+	err := result.Init()
+
+	return result, err
+
+}
+
+// Run the application
+func (a *App) Run() error {
+
+	var err error
+
+	// Setup a context
+	var subsystemWaitGroup sync.WaitGroup
+	parentContext := context.WithValue(context.Background(), "waitgroup", &subsystemWaitGroup)
+	ctx, cancel := context.WithCancel(parentContext)
+
+	// Setup signal handler
+	signalsubsystem, err := signal.NewManager(ctx, cancel, a.servicebus, a.logger, a.shutdownCallback)
+	if err != nil {
+		return err
+	}
+	a.signal = signalsubsystem
+	a.signal.Start()
+
+	// Start the service bus
+	a.servicebus.Debug()
+	err = a.servicebus.Start()
+	if err != nil {
+		return err
+	}
+
+	runtimesubsystem, err := subsystem.NewRuntime(ctx, a.servicebus, a.logger, a.startupCallback, a.shutdownCallback)
+	if err != nil {
+		return err
+	}
+	a.runtime = runtimesubsystem
+	err = a.runtime.Start()
+	if err != nil {
+		return err
+	}
+
+	// Application Stores
+	a.loglevelStore = a.runtime.GoRuntime().Store.New("wails:loglevel", a.options.LogLevel)
+	a.appconfigStore = a.runtime.GoRuntime().Store.New("wails:appconfig", a.options)
+
+	// Start the logging subsystem
+	log, err := subsystem.NewLog(a.servicebus, a.logger, a.loglevelStore)
+	if err != nil {
+		return err
+	}
+	a.log = log
+	err = a.log.Start()
+	if err != nil {
+		return err
+	}
+
+	// create the dispatcher
+	dispatcher, err := messagedispatcher.New(a.servicebus, a.logger)
+	if err != nil {
+		return err
+	}
+	a.dispatcher = dispatcher
+	err = dispatcher.Start()
+	if err != nil {
+		return err
+	}
+
+	// Start the eventing subsystem
+	eventsubsystem, err := subsystem.NewEvent(ctx, a.servicebus, a.logger)
+	if err != nil {
+		return err
+	}
+	a.event = eventsubsystem
+	err = a.event.Start()
+	if err != nil {
+		return err
+	}
+
+	// Start the menu subsystem
+	menusubsystem, err := subsystem.NewMenu(ctx, a.servicebus, a.logger, a.menuManager)
+	if err != nil {
+		return err
+	}
+	a.menu = menusubsystem
+	err = a.menu.Start()
+	if err != nil {
+		return err
+	}
+
+	// Start the call subsystem
+	callSubsystem, err := subsystem.NewCall(ctx, a.servicebus, a.logger, a.bindings.DB(), a.runtime.GoRuntime())
+	if err != nil {
+		return err
+	}
+	a.call = callSubsystem
+	err = a.call.Start()
+	if err != nil {
+		return err
+	}
+
+	// Dump bindings as a debug
+	bindingDump, err := a.bindings.ToJSON()
+	if err != nil {
+		return err
+	}
+
+	err = a.bridge.Run(dispatcher, bindingDump, a.debug)
+	a.logger.Trace("Bridge.Run() exited")
+	if err != nil {
+		return err
+	}
+
+	// Close down all the subsystems
+	a.logger.Trace("Cancelling subsystems")
+	cancel()
+	subsystemWaitGroup.Wait()
+
+	a.logger.Trace("Cancelling dispatcher")
+	dispatcher.Close()
+
+	// Close log
+	a.logger.Trace("Stopping log")
+	log.Close()
+
+	a.logger.Trace("Stopping Service bus")
+	err = a.servicebus.Stop()
+	if err != nil {
+		return err
+	}
+
+	return nil
+
+}

v2/internal/bridge/bridge.go

@@ -0,0 +1,99 @@
+package bridge
+
+import (
+	"context"
+	"log"
+	"net/http"
+	"sync"
+
+	"github.com/wailsapp/wails/v2/internal/messagedispatcher"
+
+	"github.com/gorilla/websocket"
+	"github.com/wailsapp/wails/v2/internal/logger"
+)
+
+type Bridge struct {
+	upgrader websocket.Upgrader
+	server   *http.Server
+	myLogger *logger.Logger
+
+	bindings   string
+	dispatcher *messagedispatcher.Dispatcher
+
+	mu       sync.Mutex
+	sessions map[string]*session
+
+	ctx    context.Context
+	cancel context.CancelFunc
+}
+
+func NewBridge(myLogger *logger.Logger) *Bridge {
+	result := &Bridge{
+		myLogger: myLogger,
+		upgrader: websocket.Upgrader{CheckOrigin: func(r *http.Request) bool { return true }},
+		sessions: make(map[string]*session),
+	}
+
+	myLogger.SetLogLevel(1)
+
+	ctx, cancel := context.WithCancel(context.Background())
+	result.ctx = ctx
+	result.cancel = cancel
+	result.server = &http.Server{Addr: ":34115"}
+	http.HandleFunc("/bridge", result.wsBridgeHandler)
+	return result
+}
+
+func (b *Bridge) Run(dispatcher *messagedispatcher.Dispatcher, bindings string, debug bool) error {
+
+	// Ensure we cancel the context when we shutdown
+	defer b.cancel()
+
+	b.bindings = bindings
+	b.dispatcher = dispatcher
+
+	b.myLogger.Info("Bridge mode started.")
+
+	err := b.server.ListenAndServe()
+	if err != nil && err != http.ErrServerClosed {
+		return err
+	}
+
+	return nil
+}
+
+func (b *Bridge) wsBridgeHandler(w http.ResponseWriter, r *http.Request) {
+	c, err := b.upgrader.Upgrade(w, r, nil)
+	if err != nil {
+		log.Print("upgrade:", err)
+		return
+	}
+
+	if err != nil {
+		http.Error(w, "Could not open websocket connection", http.StatusBadRequest)
+	}
+	b.myLogger.Info("Connection from frontend accepted [%s].", c.RemoteAddr().String())
+	b.startSession(c)
+
+}
+
+func (b *Bridge) startSession(conn *websocket.Conn) {
+
+	// Create a new session for this connection
+	s := newSession(conn, b.bindings, b.dispatcher, b.myLogger, b.ctx)
+
+	// Setup the close handler
+	conn.SetCloseHandler(func(int, string) error {
+		b.myLogger.Info("Connection dropped [%s].", s.Identifier())
+
+		b.mu.Lock()
+		delete(b.sessions, s.Identifier())
+		b.mu.Unlock()
+		return nil
+	})
+
+	b.mu.Lock()
+	go s.start(len(b.sessions) == 0)
+	b.sessions[s.Identifier()] = s
+	b.mu.Unlock()
+}

v2/internal/bridge/client.go

@@ -0,0 +1,121 @@
+package bridge
+
+import (
+	"github.com/wailsapp/wails/v2/pkg/options/dialog"
+)
+
+type BridgeClient struct {
+	session *session
+}
+
+func (b BridgeClient) Quit() {
+	b.session.log.Info("Quit unsupported in Bridge mode")
+}
+
+func (b BridgeClient) NotifyEvent(message string) {
+	//b.session.sendMessage("n" + message)
+	b.session.log.Info("NotifyEvent: %s", message)
+	b.session.log.Info("NotifyEvent unsupported in Bridge mode")
+}
+
+func (b BridgeClient) CallResult(message string) {
+	b.session.sendMessage("c" + message)
+}
+
+func (b BridgeClient) OpenDialog(dialogOptions *dialog.OpenDialog, callbackID string) {
+	b.session.log.Info("OpenDialog unsupported in Bridge mode")
+}
+
+func (b BridgeClient) SaveDialog(dialogOptions *dialog.SaveDialog, callbackID string) {
+	b.session.log.Info("SaveDialog unsupported in Bridge mode")
+}
+
+func (b BridgeClient) MessageDialog(dialogOptions *dialog.MessageDialog, callbackID string) {
+	b.session.log.Info("MessageDialog unsupported in Bridge mode")
+}
+
+func (b BridgeClient) WindowSetTitle(title string) {
+	b.session.log.Info("WindowSetTitle unsupported in Bridge mode")
+}
+
+func (b BridgeClient) WindowShow() {
+	b.session.log.Info("WindowShow unsupported in Bridge mode")
+}
+
+func (b BridgeClient) WindowHide() {
+	b.session.log.Info("WindowHide unsupported in Bridge mode")
+}
+
+func (b BridgeClient) WindowCenter() {
+	b.session.log.Info("WindowCenter unsupported in Bridge mode")
+}
+
+func (b BridgeClient) WindowMaximise() {
+	b.session.log.Info("WindowMaximise unsupported in Bridge mode")
+}
+
+func (b BridgeClient) WindowUnmaximise() {
+	b.session.log.Info("WindowUnmaximise unsupported in Bridge mode")
+}
+
+func (b BridgeClient) WindowMinimise() {
+	b.session.log.Info("WindowMinimise unsupported in Bridge mode")
+}
+
+func (b BridgeClient) WindowUnminimise() {
+	b.session.log.Info("WindowUnminimise unsupported in Bridge mode")
+}
+
+func (b BridgeClient) WindowPosition(x int, y int) {
+	b.session.log.Info("WindowPosition unsupported in Bridge mode")
+}
+
+func (b BridgeClient) WindowSize(width int, height int) {
+	b.session.log.Info("WindowSize unsupported in Bridge mode")
+}
+
+func (b BridgeClient) WindowSetMinSize(width int, height int) {
+	b.session.log.Info("WindowSetMinSize unsupported in Bridge mode")
+}
+
+func (b BridgeClient) WindowSetMaxSize(width int, height int) {
+	b.session.log.Info("WindowSetMaxSize unsupported in Bridge mode")
+}
+
+func (b BridgeClient) WindowFullscreen() {
+	b.session.log.Info("WindowFullscreen unsupported in Bridge mode")
+}
+
+func (b BridgeClient) WindowUnFullscreen() {
+	b.session.log.Info("WindowUnFullscreen unsupported in Bridge mode")
+}
+
+func (b BridgeClient) WindowSetColour(colour int) {
+	b.session.log.Info("WindowSetColour unsupported in Bridge mode")
+}
+
+func (b BridgeClient) DarkModeEnabled(callbackID string) {
+	b.session.log.Info("DarkModeEnabled unsupported in Bridge mode")
+}
+
+func (b BridgeClient) SetApplicationMenu(menuJSON string) {
+	b.session.log.Info("SetApplicationMenu unsupported in Bridge mode")
+}
+
+func (b BridgeClient) SetTrayMenu(trayMenuJSON string) {
+	b.session.log.Info("SetTrayMenu unsupported in Bridge mode")
+}
+
+func (b BridgeClient) UpdateTrayMenuLabel(JSON string) {
+	b.session.log.Info("UpdateTrayMenuLabel unsupported in Bridge mode")
+}
+
+func (b BridgeClient) UpdateContextMenu(contextMenuJSON string) {
+	b.session.log.Info("UpdateContextMenu unsupported in Bridge mode")
+}
+
+func newBridgeClient(session *session) *BridgeClient {
+	return &BridgeClient{
+		session: session,
+	}
+}

v2/internal/bridge/session.go

@@ -0,0 +1,145 @@
+package bridge
+
+import (
+	"context"
+	_ "embed"
+	"log"
+	"runtime"
+	"time"
+
+	"github.com/wailsapp/wails/v2/internal/messagedispatcher"
+
+	"github.com/gorilla/websocket"
+	"github.com/wailsapp/wails/v2/internal/logger"
+)
+
+//go:embed darwin.js
+var darwinRuntime string
+
+// session represents a single websocket session
+type session struct {
+	bindings string
+	conn     *websocket.Conn
+	//eventManager interfaces.EventManager
+	log *logger.Logger
+	//ipc          interfaces.IPCManager
+
+	// Mutex for writing to the socket
+	shutdown  chan bool
+	writeChan chan []byte
+
+	done bool
+
+	// context
+	ctx context.Context
+
+	// client
+	client *messagedispatcher.DispatchClient
+}
+
+func newSession(conn *websocket.Conn, bindings string, dispatcher *messagedispatcher.Dispatcher, logger *logger.Logger, ctx context.Context) *session {
+	result := &session{
+		conn:      conn,
+		bindings:  bindings,
+		log:       logger,
+		shutdown:  make(chan bool),
+		writeChan: make(chan []byte, 100),
+		ctx:       ctx,
+	}
+
+	result.client = dispatcher.RegisterClient(newBridgeClient(result))
+
+	return result
+
+}
+
+// Identifier returns a string identifier for the remote connection.
+// Taking the form of the client's <ip address>:<port>.
+func (s *session) Identifier() string {
+	if s.conn != nil {
+		return s.conn.RemoteAddr().String()
+	}
+	return ""
+}
+
+func (s *session) sendMessage(msg string) error {
+	if !s.done {
+		s.writeChan <- []byte(msg)
+	}
+	return nil
+}
+
+func (s *session) start(firstSession bool) {
+	s.log.SetLogLevel(1)
+	s.log.Info("Connected to frontend.")
+	go s.writePump()
+
+	var wailsRuntime string
+	switch runtime.GOOS {
+	case "darwin":
+		wailsRuntime = darwinRuntime
+	default:
+		log.Fatal("platform not supported")
+	}
+
+	bindingsMessage := "window.wailsbindings = `" + s.bindings + "`;"
+	s.log.Info(bindingsMessage)
+	bootstrapMessage := bindingsMessage + wailsRuntime
+
+	s.sendMessage("b" + bootstrapMessage)
+
+	for {
+		messageType, buffer, err := s.conn.ReadMessage()
+		if messageType == -1 {
+			return
+		}
+		if err != nil {
+			s.log.Error("Error reading message: %v", err)
+			continue
+		}
+
+		message := string(buffer)
+
+		s.log.Debug("Got message: %#v\n", message)
+
+		// Dispatch message as normal
+		s.client.DispatchMessage(message)
+
+		if s.done {
+			break
+		}
+	}
+}
+
+// Shutdown
+func (s *session) Shutdown() {
+	s.conn.Close()
+	s.done = true
+	s.log.Info("session %v exit", s.Identifier())
+}
+
+// writePump pulls messages from the writeChan and sends them to the client
+// since it uses a channel to read the messages the socket is protected without locks
+func (s *session) writePump() {
+	s.log.Debug("Session %v - writePump start", s.Identifier())
+	defer s.log.Debug("Session %v - writePump shutdown", s.Identifier())
+	for {
+		select {
+		case <-s.ctx.Done():
+			s.Shutdown()
+			return
+		case msg, ok := <-s.writeChan:
+			s.conn.SetWriteDeadline(time.Now().Add(1 * time.Second))
+			if !ok {
+				s.log.Debug("writeChan was closed!")
+				s.conn.WriteMessage(websocket.CloseMessage, []byte{})
+				return
+			}
+
+			if err := s.conn.WriteMessage(websocket.TextMessage, msg); err != nil {
+				s.log.Debug(err.Error())
+				return
+			}
+		}
+	}
+}

v2/internal/ffenestri/ffenestri.go

@@ -169,7 +169,6 @@ func (a *Application) Run(incomingDispatcher Dispatcher, bindings string, debug
 		// Yes - Save memory reference and run app, cleaning up afterwards
 		a.saveMemoryReference(unsafe.Pointer(app))
 		C.Run(app, 0, nil)
-		println("Back in ffenestri.go")
 	} else {
 		// Oh no! We couldn't initialise the application
 		a.logger.Fatal("Cannot initialise Application.")

v2/internal/process/process.go

@@ -1,6 +1,7 @@
 package process
 
 import (
+	"os"
 	"os/exec"
 
 	"github.com/wailsapp/wails/v2/pkg/clilogger"
@@ -16,11 +17,14 @@ type Process struct {
 
 // NewProcess creates a new process struct
 func NewProcess(logger *clilogger.CLILogger, cmd string, args ...string) *Process {
-	return &Process{
+	result := &Process{
 		logger:      logger,
 		cmd:         exec.Command(cmd, args...),
 		exitChannel: make(chan bool, 1),
 	}
+	result.cmd.Stdout = os.Stdout
+	result.cmd.Stderr = os.Stderr
+	return result
 }
 
 // Start the process

v2/internal/runtime/js/core/bindings.js

@@ -65,7 +65,7 @@ export function SetBindings(bindingsMap) {
 				window.backend[packageName][structName][methodName] = function () {
 
 					// No timeout by default
-					var timeout = 0;
+					let timeout = 0;
 
 					// Actual function
 					function dynamic() {
@@ -89,19 +89,3 @@ export function SetBindings(bindingsMap) {
 		});
 	});
 }
-// /**
-//  * Determines if the given identifier is valid Javascript
-//  *
-//  * @param {boolean} name
-//  * @returns
-//  */
-// function isValidIdentifier(name) {
-// 	// Don't xss yourself :-)
-// 	try {
-// 		new Function('var ' + name);
-// 		return true;
-// 	} catch (e) {
-// 		return false;
-// 	}
-// }
-

v2/internal/runtime/js/core/events.js

@@ -13,6 +13,7 @@ import { Error } from './log';
 import { SendMessage } from 'ipc';
 
 // Defines a single listener with a maximum number of times to callback
+
 /**
  * The Listener class defines a listener! :-)
  *
@@ -43,7 +44,7 @@ class Listener {
 	}
 }
 
-var eventListeners = {};
+let eventListeners = {};
 
 /**
  * Registers an event listener that will be invoked `maxCallbacks` times before being destroyed
@@ -96,7 +97,7 @@ export function Once(eventName, callback) {
 function notifyListeners(eventData) {
 
 	// Get the event name
-	var eventName = eventData.name;
+	let eventName = eventData.name;
 
 	// Check if we have any listeners for this event
 	if (eventListeners[eventName]) {
@@ -110,7 +111,7 @@ function notifyListeners(eventData) {
 			// Get next listener
 			const listener = eventListeners[eventName][count];
 
-			var data = eventData.data;
+			let data = eventData.data;
 
 			// Do the callback
 			const destroy = listener.Callback(data);
@@ -120,7 +121,7 @@ function notifyListeners(eventData) {
 			}
 		}
 
-		// Update callbacks with new list of listners
+		// Update callbacks with new list of listeners
 		eventListeners[eventName] = newEventListenerList;
 	}
 }

v2/internal/runtime/js/core/main.js

@@ -62,6 +62,4 @@ export function Init() {
 
 	// Do platform specific Init
 	Platform.Init();
-
-	window.wailsloader.runtime = true;
 }

v2/internal/runtime/js/desktop/linux.js

@@ -27,7 +27,7 @@ export function Init() {
     // Setup drag handler
     // Based on code from: https://github.com/patr0nus/DeskGap
     window.addEventListener('mousedown', function (e) {
-        var currentElement = e.target;
+        let currentElement = e.target;
         while (currentElement != null) {
             if (currentElement.hasAttribute('data-wails-no-drag')) {
                 break;

v2/internal/runtime/js/runtime/.npmignore

@@ -1 +0,0 @@
-bridge.js

v2/internal/runtime/js/runtime/bridge.js

@@ -0,0 +1,225 @@
+/*
+ _       __      _ __
+| |     / /___ _(_) /____
+| | /| / / __ `/ / / ___/
+| |/ |/ / /_/ / / (__  )
+|__/|__/\__,_/_/_/____/
+The lightweight framework for web-like apps
+(c) Lea Anthony 2019-present
+*/
+/* jshint esversion: 6 */
+
+function init() {
+	// Bridge object
+	window.wailsbridge = {
+		reconnectOverlay: null,
+		reconnectTimer: 300,
+		wsURL: 'ws://' + window.location.hostname + ':34115/bridge',
+		connectionState: null,
+		config: {},
+		websocket: null,
+		callback: null,
+		overlayHTML:
+			'<div class="wails-reconnect-overlay"><div class="wails-reconnect-overlay-content"><div class="wails-reconnect-overlay-loadingspinner"></div></div></div>',
+		overlayCSS:
+			'.wails-reconnect-overlay{position:fixed;top:0;left:0;width:100%;height:100%;backdrop-filter: blur(20px) saturate(160%) contrast(45%) brightness(140%);display:none;z-index:999999}.wails-reconnect-overlay-content{position:relative;top:50%;transform:translateY(-50%);margin: 0;background-image:url(data:image/png;base64,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);background-repeat:no-repeat;background-position:center}.wails-reconnect-overlay-loadingspinner{pointer-events:none;width:2.5em;height:2.5em;border:.4em solid transparent;border-color:#f00 #eee0 #f00 #eee0;border-radius:50%;animation:loadingspin 1s linear infinite;margin:auto;padding:2.5em}@keyframes loadingspin{100%{transform:rotate(360deg); opacity}}',
+		log: function (message) {
+			// eslint-disable-next-line
+			console.log(
+				'%c wails bridge %c ' + message + ' ',
+				'background: #aa0000; color: #fff; border-radius: 3px 0px 0px 3px; padding: 1px; font-size: 0.7rem',
+				'background: #009900; color: #fff; border-radius: 0px 3px 3px 0px; padding: 1px; font-size: 0.7rem'
+			);
+		}
+	};
+}
+
+function setupIPCBridge() {
+	// darwin
+	window.webkit = {
+		messageHandlers: {
+			external: {
+				postMessage: (message) => {
+					window.wailsbridge.websocket.send(message);
+				}
+			}
+		}
+	};
+}
+
+// Adapted from webview - thanks zserge!
+function injectCSS(css) {
+	const elem = document.createElement('style');
+	elem.setAttribute('type', 'text/css');
+	elem.appendChild(document.createTextNode(css));
+	const head = document.head || document.getElementsByTagName('head')[0];
+	head.appendChild(elem);
+}
+
+// Creates a node in the Dom
+/**
+ * @param {HTMLElement} parent
+ * @param {string} elementType
+ * @param {string} id
+ * @param {string|null} className
+ * @param {string|null} content
+ */
+function createNode(parent, elementType, id, className, content) {
+	const d = document.createElement(elementType);
+	if (id) {
+		d.id = id;
+	}
+	if (className) {
+		d.className = className;
+	}
+	if (content) {
+		d.innerHTML = content;
+	}
+	parent.appendChild(d);
+	return d;
+}
+
+// Sets up the overlay
+function setupOverlay() {
+	const body = document.body;
+	const wailsBridgeNode = createNode(body, 'div', 'wails-bridge', null, null);
+	wailsBridgeNode.innerHTML = window.wailsbridge.overlayHTML;
+
+	// Inject the overlay CSS
+	injectCSS(window.wailsbridge.overlayCSS);
+}
+
+// Start the Wails Bridge
+function startBridge() {
+	// Setup the overlay
+	setupOverlay();
+
+	window.wailsbridge.websocket = null;
+	window.wailsbridge.connectTimer = null;
+	window.wailsbridge.reconnectOverlay = document.querySelector(
+		'.wails-reconnect-overlay'
+	);
+	window.wailsbridge.connectionState = 'disconnected';
+
+	// Shows the overlay
+	function showReconnectOverlay() {
+		window.wailsbridge.reconnectOverlay.style.display = 'block';
+	}
+
+	// Hides the overlay
+	const hideReconnectOverlay = function () {
+		window.wailsbridge.reconnectOverlay.style.display = 'none';
+	}
+	window.wailsbridge.hideReconnectOverlay = hideReconnectOverlay;
+
+	// Adds a script to the Dom.
+	// Removes it if second parameter is true.
+	function addScript(script, remove) {
+		const s = document.createElement('script');
+		s.setAttribute('type', 'text/javascript');
+		s.textContent = script;
+		document.head.appendChild(s);
+
+		// Remove internal messages from the DOM
+		if (remove) {
+			s.parentNode.removeChild(s);
+		}
+	}
+
+	// Handles incoming websocket connections
+	function handleConnect() {
+		window.wailsbridge.log('Connected to backend');
+		setupIPCBridge();
+		hideReconnectOverlay();
+		clearInterval(window.wailsbridge.connectTimer);
+		window.wailsbridge.websocket.onclose = handleDisconnect;
+		window.wailsbridge.websocket.onmessage = handleMessage;
+		window.wailsbridge.connectionState = 'connected';
+	}
+
+	// Handles websocket disconnects
+	function handleDisconnect() {
+		window.wailsbridge.log('Disconnected from backend');
+		window.wailsbridge.websocket = null;
+		window.wailsbridge.connectionState = 'disconnected';
+		showReconnectOverlay();
+		connect();
+	}
+
+	// Try to connect to the backend every 1s (default value).
+	// Change this value in the main wailsbridge object.
+	function connect() {
+		window.wailsbridge.connectTimer = setInterval(function () {
+			if (window.wailsbridge.websocket == null) {
+				window.wailsbridge.websocket = new WebSocket(window.wailsbridge.wsURL);
+				window.wailsbridge.websocket.onopen = handleConnect;
+				window.wailsbridge.websocket.onerror = function (e) {
+					e.stopImmediatePropagation();
+					e.stopPropagation();
+					e.preventDefault();
+					window.wailsbridge.websocket = null;
+					return false;
+				};
+			}
+		}, window.wailsbridge.reconnectTimer);
+	}
+
+	function handleMessage(message) {
+		// As a bridge we ignore js and css injections
+		switch (message.data[0]) {
+		// Wails library - inject!
+		case 'b':
+			message = message.data.slice(1)
+			addScript(message);
+			window.wailsbridge.log('Loaded Wails Runtime');
+
+			// Now wails runtime is loaded, wails for the ready event
+			// and callback to the main app
+			// window.wails.Events.On('wails:loaded', function () {
+			if (window.wailsbridge.callback) {
+				window.wailsbridge.log('Notifying application');
+				window.wailsbridge.callback(window.wails);
+			}
+			// });
+			break;
+		// 	// Notifications
+		// case 'n':
+		// 	addScript(message.data.slice(1), true);
+		// 	break;
+		// 	// Binding
+		// case 'b':
+		// 	const binding = message.data.slice(1);
+		// 	//log("Binding: " + binding)
+		// 	window.wails._.NewBinding(binding);
+		// 	break;
+		// 	// Call back
+		case 'c':
+			const callbackData = message.data.slice(1);
+			window.wails._.Callback(callbackData);
+			break;
+		default:
+			window.wailsbridge.log('Unknown message: ' + message.data);
+		}
+	}
+
+	// Start by showing the overlay...
+	showReconnectOverlay();
+
+	// ...and attempt to connect
+	connect();
+}
+
+function InitBridge(callback) {
+	// Set up the bridge
+	init();
+
+	// Save the callback
+	window.wailsbridge.callback = callback;
+
+	// Start Bridge
+	startBridge();
+}
+
+module.exports = {
+	InitBridge: InitBridge,
+}

v2/internal/runtime/js/runtime/init.js

@@ -9,13 +9,25 @@ The lightweight framework for web-like apps
 */
 /* jshint esversion: 6 */
 
+import { InitBridge } from './bridge';
+
 /**
- * Initialises the Wails runtime
+ * ready will execute the callback when Wails has loaded
+ * and initialised.
  *
  * @param {function} callback
  */
-function Init(callback) {
-	window.wails._.Init(callback);
+function ready(callback) {
+
+	// If window.wails exists, we are ready
+	if( window.wails ) {
+		return callback();
+	}
+
+	// If not we need to setup the bridge
+	InitBridge(callback);
 }
 
-module.exports = Init;
+module.exports = {
+	ready: ready,
+};

v2/internal/runtime/js/runtime/main.js

@@ -23,7 +23,7 @@ module.exports = {
 	Browser: Browser,
 	Dialog: Dialog,
 	Events: Events,
-	Init: Init,
+	ready: Init.ready,
 	Log: Log,
 	System: System,
 	Store: Store,

v2/internal/runtime/js/runtime/package-lock.json

@@ -1,6 +1,6 @@
 {
   "name": "@wails/runtime",
-  "version": "1.2.13",
+  "version": "1.2.24",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {

v2/internal/runtime/js/runtime/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@wails/runtime",
-  "version": "1.2.22",
+  "version": "1.3.7",
   "description": "Wails V2 Javascript runtime library",
   "main": "main.js",
   "types": "runtime.d.ts",

v2/internal/runtime/js/runtime/system.js

@@ -13,7 +13,7 @@ const Events = require('./events');
 
 /**
  * Registers an event listener that will be invoked when the user changes the
- * desktop theme (light mode / dark mode). The callback receives a boolean which
+ * desktop theme (light mode / dark mode). The callback receives a booleanean which
  * indicates if dark mode is enabled.
  *
  * @export
@@ -43,12 +43,12 @@ function DarkModeEnabled() {
  * Mac Title Bar Config
  * Check out https://github.com/lukakerr/NSWindowStyles for some examples of these settings
  * @typedef {Object} MacTitleBar
- * @param {bool} TitleBarAppearsTransparent - NSWindow.titleBarAppearsTransparent
- * @param {bool} HideTitle - NSWindow.hideTitle
- * @param {bool} HideTitleBar - NSWindow.hideTitleBar
- * @param {bool} FullSizeContent - Makes the webview portion of the window the full size of the window, even over the titlebar
- * @param {bool} UseToolbar - Set true to add a blank toolbar to the window (makes the title bar larger)
- * @param {bool} HideToolbarSeparator - Set true to remove the separator between the toolbar and the main content area
+ * @param {boolean} TitleBarAppearsTransparent - NSWindow.titleBarAppearsTransparent
+ * @param {boolean} HideTitle - NSWindow.hideTitle
+ * @param {boolean} HideTitleBar - NSWindow.hideTitleBar
+ * @param {boolean} FullSizeContent - Makes the webview portion of the window the full size of the window, even over the titlebar
+ * @param {boolean} UseToolbar - Set true to add a blank toolbar to the window (makes the title bar larger)
+ * @param {boolean} HideToolbarSeparator - Set true to remove the separator between the toolbar and the main content area
  * 
  */
 
@@ -65,8 +65,8 @@ function DarkModeEnabled() {
  * @param {number} MinHeight - Window Minimum Height
  * @param {number} MaxWidth - Window Maximum Width
  * @param {number} MaxHeight - Window Maximum Height
- * @param {bool} StartHidden - Start with window hidden
- * @param {bool} DevTools - Enables the window devtools
+ * @param {boolean} StartHidden - Start with window hidden
+ * @param {boolean} DevTools - Enables the window devtools
  * @param {number} RBGA - The initial window colour. Convert to hex then it'll mean 0xRRGGBBAA
  * @param {MacAppConfig} [Mac] - Configuration when running on Mac
  * @param {LinuxAppConfig} [Linux] - Configuration when running on Linux
@@ -88,11 +88,23 @@ function AppConfig() {
 	return window.wails.System.AppConfig.get();
 }
 
+function LogLevel() {
+	return window.wails.System.LogLevel();
+}
+
+function Platform() {
+	return window.wails.System.Platform();
+}
+
+function AppType() {
+	return window.wails.System.AppType();
+}
+
 module.exports = {
 	OnThemeChange: OnThemeChange,
 	DarkModeEnabled: DarkModeEnabled,
-	LogLevel: window.wails.System.LogLevel,
-	Platform: window.wails.System.Platform,
-	AppType: window.wails.System.AppType,
+	LogLevel: LogLevel,
+	Platform: Platform,
+	AppType: AppType,
 	AppConfig: AppConfig,
 };

v2/internal/runtime/scripts/rebuild.go

@@ -50,12 +50,20 @@ func main() {
 			log.Fatal(err)
 		}
 
-		wailsJS := fs.RelativePath("../../../internal/runtime/assets/desktop_" + platform + ".js")
+		wailsJS := fs.RelativePath("../assets/desktop_" + platform + ".js")
 		runtimeData, err := ioutil.ReadFile(wailsJS)
 		if err != nil {
 			log.Fatal(err)
 		}
 
+		// Copy this file to bridge directory for embedding
+		bridgeDir := fs.RelativePath("../../bridge/" + platform + ".js")
+		println("Copying", wailsJS, "to", bridgeDir)
+		err = fs.CopyFile(wailsJS, bridgeDir)
+		if err != nil {
+			log.Fatal(err)
+		}
+
 		// Convert to C structure
 		runtimeC := `
 // runtime.c (c) 2019-Present Lea Anthony.

v2/pkg/commands/build/build.go

@@ -86,6 +86,8 @@ func Build(options *Options) (string, error) {
 		builder = newHybridBuilder(options)
 	case "server":
 		builder = newServerBuilder(options)
+	case "dev":
+		builder = newDesktopBuilder(options)
 	default:
 		return "", fmt.Errorf("cannot build assets for output type %s", projectData.OutputType)
 	}