release v0.18.12-pre

* fix: linting

* chore: bump version

* fix: unicode text for Windows

* fix: re-add webview_set_title

CONTRIBUTORS.md

@@ -20,3 +20,4 @@ Wails is what it is because of the time and effort given by these great people.
 * [Toyam Cox](https://github.com/Vaelatern)
 * [Robin Eklind](https://github.com/mewmew)
 * [Kris Raney](https://github.com/kraney)
+* [soon cheol shin](https://github.com/scshin0572)

cmd/helpers.go

@@ -219,6 +219,15 @@ func InstallFrontendDeps(projectDir string, projectOptions *ProjectOptions, forc
 
 	const md5sumFile = "package.json.md5"
 
+	// If node_modules does not exist, force a rebuild.
+	nodeModulesPath, err := filepath.Abs(filepath.Join(".", "node_modules"))
+	if err != nil {
+		return err
+	}
+	if !fs.DirExists(nodeModulesPath) {
+		forceRebuild = true
+	}
+
 	// If we aren't forcing the install and the md5sum file exists
 	if !forceRebuild && fs.FileExists(md5sumFile) {
 		// Yes - read contents

cmd/package.go

@@ -191,8 +191,15 @@ func (b *PackageHelper) PackageWindows(po *ProjectOptions, cleanUp bool) error {
 
 	// Build syso
 	sysofile := filepath.Join(b.fs.Cwd(), basename+"-res.syso")
-	windresCommand := []string{"windres", "-o", sysofile, tgtRCFile}
-	err := NewProgramHelper().RunCommandArray(windresCommand)
+
+	batfile, err := fs.LocalDir(".")
+	if err != nil {
+		return err
+	}
+
+	windresBatFile := filepath.Join(batfile.fullPath, "windres.bat")
+	windresCommand := []string{windresBatFile, sysofile, tgtRCFile}
+	err = NewProgramHelper().RunCommandArray(windresCommand)
 	if err != nil {
 		return err
 	}

cmd/program.go

@@ -100,6 +100,19 @@ func (p *ProgramHelper) InstallGoPackage(packageName string) error {
 	return err
 }
 
+// InstallNPMPackage installs the given npm package
+func (p *ProgramHelper) InstallNPMPackage(packageName string, save bool) error {
+	args := strings.Split("install "+packageName, " ")
+	if save {
+		args = append(args, "--save")
+	}
+	_, stderr, err := p.shell.Run("npm", args...)
+	if err != nil {
+		fmt.Println(stderr)
+	}
+	return err
+}
+
 // RunCommand runs the given command
 func (p *ProgramHelper) RunCommand(command string) error {
 	args := strings.Split(command, " ")
@@ -115,6 +128,7 @@ func (p *ProgramHelper) RunCommandArray(args []string, dir ...string) error {
 		fmt.Printf("ERROR: Looks like '%s' isn't installed. Please install and try again.", program)
 		return err
 	}
+
 	args = args[1:]
 	var stderr string
 	var stdout string

cmd/project.go

@@ -13,6 +13,18 @@ import (
 	"github.com/leaanthony/slicer"
 )
 
+// PackageManager indicates different package managers
+type PackageManager int
+
+const (
+	// UNKNOWN package manager
+	UNKNOWN PackageManager = iota
+	// NPM package manager
+	NPM
+	// YARN package manager
+	YARN
+)
+
 type author struct {
 	Name  string `json:"name"`
 	Email string `json:"email"`
@@ -153,6 +165,23 @@ func (po *ProjectOptions) Defaults() {
 	po.WailsVersion = Version
 }
 
+// GetNPMBinaryName returns the type of package manager used by the project
+func (po *ProjectOptions) GetNPMBinaryName() (PackageManager, error) {
+	if po.FrontEnd == nil {
+		return UNKNOWN, fmt.Errorf("No frontend specified in project options")
+	}
+
+	if strings.Index(po.FrontEnd.Install, "npm") > -1 {
+		return NPM, nil
+	}
+
+	if strings.Index(po.FrontEnd.Install, "yarn") > -1 {
+		return YARN, nil
+	}
+
+	return UNKNOWN, nil
+}
+
 // PromptForInputs asks the user to input project details
 func (po *ProjectOptions) PromptForInputs() error {
 

cmd/version.go

@@ -1,4 +1,4 @@
 package cmd
 
 // Version - Wails version
-const Version = "v0.18.3"
+const Version = "v0.18.12-pre"

cmd/wails/15_migrate.go

@@ -0,0 +1,408 @@
+package main
+
+import (
+	"bufio"
+	"fmt"
+	"io/ioutil"
+	"log"
+	"os"
+	"path/filepath"
+	"regexp"
+	"strings"
+
+	"github.com/Masterminds/semver"
+	"github.com/leaanthony/spinner"
+	"github.com/wailsapp/wails/cmd"
+)
+
+// Constants
+var checkSpinner = spinner.NewSpinner()
+var migrateProjectOptions = &cmd.ProjectOptions{}
+var migrateFS = cmd.NewFSHelper()
+var migrateGithub = cmd.NewGitHubHelper()
+var programHelper = cmd.NewProgramHelper()
+var lessThanV1 *semver.Constraints
+
+// The user's go.mod
+var goMod string
+var goModFile string
+
+// The user's main.js
+var mainJSFile string
+var mainJSContents string
+
+// Frontend directory
+var frontEndDir string
+
+func init() {
+
+	var dryrun bool
+	var err error
+
+	lessThanV1, err = semver.NewConstraint("< v1.0.0")
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	// var forceRebuild = false
+	checkSpinner.SetSpinSpeed(50)
+
+	commandDescription := `EXPERIMENTAL - This command attempts to migrate projects to the latest Wails version.`
+	updateCmd := app.Command("migrate", "Migrate projects to latest Wails release").
+		LongDescription(commandDescription).
+		BoolFlag("dryrun", "Only display what would be done", &dryrun)
+
+	updateCmd.Action(func() error {
+
+		message := "Migrate Project"
+		logger.PrintSmallBanner(message)
+		logger.Red("WARNING: This is an experimental command. Ensure you have backups of your project!")
+		logger.Red("It currently only supports npm based projects.")
+		fmt.Println()
+
+		// Check project directory
+		err := checkProjectDirectory()
+		if err != nil {
+			return err
+		}
+
+		// Find Wails version from go.mod
+		wailsVersion, err := getWailsVersion()
+		if err != nil {
+			return err
+		}
+
+		// Get latest stable version
+		var latestVersion *semver.Version
+		latestVersion, err = getLatestWailsVersion()
+		if err != nil {
+			return err
+		}
+
+		var canMigrate bool
+		canMigrate, err = canMigrateVersion(wailsVersion, latestVersion)
+		if err != nil {
+			return err
+		}
+
+		if !canMigrate {
+			return nil
+		}
+
+		// Check for wailsbridge
+		wailsBridge, err := checkWailsBridge()
+		if err != nil {
+			return err
+		}
+
+		// Is main.js using bridge.Init()
+		canUpdateMainJS, err := checkMainJS()
+		if err != nil {
+			return err
+		}
+
+		// TODO: Check if we are using legacy js runtime
+
+		// Operations
+		logger.Yellow("Operations to perform:")
+
+		logger.Yellowf("  - Update to Wails v%s\n", latestVersion)
+
+		if len(wailsBridge) > 0 {
+			logger.Yellow("  - Delete wailsbridge.js")
+		}
+
+		if canUpdateMainJS {
+			logger.Yellow("  - Patch main.js")
+		}
+
+		logger.Yellow("  - Ensure '@wailsapp/runtime` module is installed")
+
+		if dryrun {
+			logger.White("Exiting: Dry Run")
+			return nil
+		}
+
+		logger.Red("*WARNING* About to modify your project!")
+		logger.Red("Type 'YES' to continue: ")
+		scanner := bufio.NewScanner(os.Stdin)
+		scanner.Scan()
+		input := scanner.Text()
+		if input != "YES" {
+			logger.Red("ABORTED!")
+			return nil
+		}
+
+		logger.Yellow("Let's do this!")
+
+		err = updateWailsVersion(wailsVersion, latestVersion)
+		if err != nil {
+			return err
+		}
+
+		if len(wailsBridge) > 0 {
+			err = deleteWailsBridge(wailsBridge)
+			if err != nil {
+				return err
+			}
+		}
+
+		if canUpdateMainJS {
+			err = patchMainJS()
+			if err != nil {
+				return err
+			}
+		}
+
+		// Install runtime
+		err = installWailsRuntime()
+		if err != nil {
+			return err
+		}
+
+		fmt.Println()
+		logger.Yellow("Migration complete! Check project by running `wails build`.")
+		return nil
+	})
+}
+
+func checkProjectDirectory() error {
+	// Get versions
+	checkSpinner.Start("Check Project Directory")
+
+	// Check we are in project directory
+	err := migrateProjectOptions.LoadConfig(migrateFS.Cwd())
+	if err != nil {
+		checkSpinner.Error()
+		return fmt.Errorf("Unable to find 'project.json'. Please check you are in a Wails project directory")
+	}
+
+	checkSpinner.Success()
+	return nil
+}
+
+func getWailsVersion() (*semver.Version, error) {
+	checkSpinner.Start("Get Wails Version")
+	var result *semver.Version
+
+	// Load file
+	var err error
+	goModFile, err = filepath.Abs(filepath.Join(".", "go.mod"))
+	if err != nil {
+		checkSpinner.Error()
+		return nil, fmt.Errorf("Unable to load go.mod at %s", goModFile)
+	}
+	goMod, err = migrateFS.LoadAsString(goModFile)
+	if err != nil {
+		checkSpinner.Error()
+		return nil, fmt.Errorf("Unable to load go.mod")
+	}
+
+	// Find wails version
+	versionRegexp := regexp.MustCompile(`.*github.com/wailsapp/wails.*(v\d+.\d+.\d+)`)
+	versions := versionRegexp.FindStringSubmatch(goMod)
+
+	if len(versions) != 2 {
+		return nil, fmt.Errorf("Unable to determine Wails version")
+	}
+
+	version := versions[1]
+	result, err = semver.NewVersion(version)
+	if err != nil {
+		return nil, fmt.Errorf("Unable to parse Wails version: %s", version)
+	}
+	checkSpinner.Success("Found Wails Version: " + version)
+	return result, nil
+
+}
+
+func canMigrateVersion(wailsVersion *semver.Version, latestVersion *semver.Version) (bool, error) {
+	checkSpinner.Start("Checking ability to Migrate")
+
+	// Check if we are at the latest version!!!!
+	if wailsVersion.Equal(latestVersion) || wailsVersion.GreaterThan(latestVersion) {
+		checkSpinner.Errorf("Checking ability to Migrate: No! (v%s >= v%s)", wailsVersion, latestVersion)
+		return false, nil
+	}
+
+	// Check for < v1.0.0
+	if lessThanV1.Check(wailsVersion) {
+		checkSpinner.Successf("Checking ability to Migrate: Yes! (v%s < v1.0.0)", wailsVersion)
+		return true, nil
+	}
+	checkSpinner.Error("Unable to migrate")
+	return false, fmt.Errorf("No migration rules for version %s", wailsVersion)
+}
+
+func checkWailsBridge() (string, error) {
+	checkSpinner.Start("Checking if legacy Wails Bridge present")
+
+	// Check frontend dir is available
+	if migrateProjectOptions.FrontEnd == nil ||
+		len(migrateProjectOptions.FrontEnd.Dir) == 0 ||
+		!migrateFS.DirExists(migrateProjectOptions.FrontEnd.Dir) {
+		checkSpinner.Error("Unable to determine frontend directory")
+		return "", fmt.Errorf("Unable to determine frontend directory")
+	}
+
+	frontEndDir = migrateProjectOptions.FrontEnd.Dir
+
+	wailsBridgePath, err := filepath.Abs(filepath.Join(".", frontEndDir, "src", "wailsbridge.js"))
+	if err != nil {
+		checkSpinner.Error(err.Error())
+		return "", err
+	}
+
+	// If it doesn't exist, return blank string
+	if !migrateFS.FileExists(wailsBridgePath) {
+		checkSpinner.Success("Checking if legacy Wails Bridge present: No")
+		return "", nil
+	}
+
+	checkSpinner.Success("Checking if legacy Wails Bridge present: Yes")
+	return wailsBridgePath, nil
+
+}
+
+// This function determines if the main.js file using wailsbridge can be auto-updated
+func checkMainJS() (bool, error) {
+
+	checkSpinner.Start("Checking if main.js can be migrated")
+	var err error
+
+	// Check main.js is there
+	if migrateProjectOptions.FrontEnd == nil ||
+		len(migrateProjectOptions.FrontEnd.Dir) == 0 ||
+		!migrateFS.DirExists(migrateProjectOptions.FrontEnd.Dir) {
+		checkSpinner.Error("Unable to determine frontend directory")
+		return false, fmt.Errorf("Unable to determine frontend directory")
+	}
+
+	frontEndDir = migrateProjectOptions.FrontEnd.Dir
+
+	mainJSFile, err = filepath.Abs(filepath.Join(".", frontEndDir, "src", "main.js"))
+	if err != nil {
+		checkSpinner.Error("Unable to find main.js")
+		return false, err
+	}
+
+	mainJSContents, err = migrateFS.LoadAsString(mainJSFile)
+	if err != nil {
+		checkSpinner.Error("Unable to load main.js")
+		return false, err
+	}
+
+	// Check we have a line like: import Bridge from "./wailsbridge";
+	if strings.Index(mainJSContents, `import Bridge from "./wailsbridge";`) == -1 {
+		checkSpinner.Success("Checking if main.js can be migrated: No - Cannot find `import Bridge`")
+		return false, nil
+	}
+
+	// Check we have a line like: Bridge.Start(() => {
+	if strings.Index(mainJSContents, `Bridge.Start(`) == -1 {
+		checkSpinner.Success("Checking if main.js can be migrated: No - Cannot find `Bridge.Start`")
+		return false, nil
+	}
+	checkSpinner.Success("Checking if main.js can be migrated: Yes")
+	return true, nil
+}
+
+func getLatestWailsVersion() (*semver.Version, error) {
+	checkSpinner.Start("Checking GitHub for latest Wails version")
+	version, err := migrateGithub.GetLatestStableRelease()
+	if err != nil {
+		checkSpinner.Error("Checking GitHub for latest Wails version: Failed")
+		return nil, err
+	}
+
+	checkSpinner.Successf("Checking GitHub for latest Wails version: v%s", version)
+	return version.Version, nil
+}
+
+func updateWailsVersion(currentVersion, latestVersion *semver.Version) error {
+	// Patch go.mod
+	checkSpinner.Start("Patching go.mod")
+
+	wailsModule := "github.com/wailsapp/wails"
+	old := fmt.Sprintf("%s v%s", wailsModule, currentVersion)
+	new := fmt.Sprintf("%s v%s", wailsModule, latestVersion)
+
+	goMod = strings.Replace(goMod, old, new, -1)
+	err := ioutil.WriteFile(goModFile, []byte(goMod), 0600)
+	if err != nil {
+		checkSpinner.Error()
+		return err
+	}
+
+	checkSpinner.Success()
+	return nil
+}
+
+func deleteWailsBridge(bridgeFilename string) error {
+	// Patch go.mod
+	checkSpinner.Start("Delete legacy wailsbridge.js")
+
+	err := migrateFS.RemoveFile(bridgeFilename)
+	if err != nil {
+		checkSpinner.Error()
+		return err
+	}
+
+	checkSpinner.Success()
+	return nil
+}
+
+func patchMainJS() error {
+	// Patch main.js
+	checkSpinner.Start("Patching main.js")
+
+	// Patch import line
+	oldImportLine := `import Bridge from "./wailsbridge";`
+	newImportLine := `import * as Wails from "@wailsapp/runtime";`
+	mainJSContents = strings.Replace(mainJSContents, oldImportLine, newImportLine, -1)
+
+	// Patch Start line
+	oldStartLine := `Bridge.Start`
+	newStartLine := `Wails.Init`
+	mainJSContents = strings.Replace(mainJSContents, oldStartLine, newStartLine, -1)
+
+	err := ioutil.WriteFile(mainJSFile, []byte(mainJSContents), 0600)
+	if err != nil {
+		checkSpinner.Error()
+		return err
+	}
+
+	checkSpinner.Success()
+	return nil
+}
+
+func installWailsRuntime() error {
+
+	checkSpinner.Start("Installing @wailsapp/runtime module")
+
+	// Change to the frontend directory
+	err := os.Chdir(frontEndDir)
+	if err != nil {
+		checkSpinner.Error()
+		return nil
+	}
+
+	// Determine package manager
+	packageManager, err := migrateProjectOptions.GetNPMBinaryName()
+	if err != nil {
+		checkSpinner.Error()
+		return nil
+	}
+
+	switch packageManager {
+	case cmd.NPM:
+		// npm install --save @wailsapp/runtime
+		programHelper.InstallNPMPackage("@wailsapp/runtime", true)
+	default:
+		checkSpinner.Error()
+		return fmt.Errorf("Unknown package manager")
+	}
+
+	checkSpinner.Success()
+	return nil
+}

cmd/windres.bat

@@ -0,0 +1 @@
+windres.exe -o %1 %2

config.go

@@ -1,6 +1,9 @@
 package wails
 
-import "github.com/leaanthony/mewn"
+import (
+	"github.com/leaanthony/mewn"
+	"github.com/wailsapp/wails/runtime"
+)
 
 // AppConfig is the configuration structure used when creating a Wails App object
 type AppConfig struct {
@@ -65,7 +68,7 @@ func (a *AppConfig) merge(in *AppConfig) error {
 		a.CSS = in.CSS
 	}
 	if in.Title != "" {
-		a.Title = in.Title
+		a.Title = runtime.ProcessEncoding(in.Title)
 	}
 
 	if in.Colour != "" {

go.mod

@@ -2,6 +2,7 @@ module github.com/wailsapp/wails
 
 require (
 	github.com/Masterminds/semver v1.4.2
+	github.com/abadojack/whatlanggo v1.0.1
 	github.com/dchest/cssmin v0.0.0-20151210170030-fb8d9b44afdc // indirect
 	github.com/dchest/htmlmin v0.0.0-20150526090704-e254725e81ac
 	github.com/dchest/jsmin v0.0.0-20160823214000-faeced883947 // indirect
@@ -26,6 +27,7 @@ require (
 	golang.org/x/crypto v0.0.0-20190510104115-cbcb75029529 // indirect
 	golang.org/x/net v0.0.0-20190509222800-a4d6f7feada5 // indirect
 	golang.org/x/sys v0.0.0-20190509141414-a5b02f93d862
+	golang.org/x/text v0.3.0
 	gopkg.in/AlecAivazis/survey.v1 v1.8.4
 	gopkg.in/yaml.v3 v3.0.0-20190709130402-674ba3eaed22
 )

go.sum

@@ -2,6 +2,8 @@ github.com/Masterminds/semver v1.4.2 h1:WBLTQ37jOCzSLtXNdoo8bNM8876KhNqOKvrlGITg
 github.com/Masterminds/semver v1.4.2/go.mod h1:MB6lktGJrhw8PrUyiEoblNEGEQ+RzHPF078ddwwvV3Y=
 github.com/Netflix/go-expect v0.0.0-20180615182759-c93bf25de8e8 h1:xzYJEypr/85nBpB11F9br+3HUrpgb+fcm5iADzXXYEw=
 github.com/Netflix/go-expect v0.0.0-20180615182759-c93bf25de8e8/go.mod h1:oX5x61PbNXchhh0oikYAH+4Pcfw5LKv21+Jnpr6r6Pc=
+github.com/abadojack/whatlanggo v1.0.1 h1:19N6YogDnf71CTHm3Mp2qhYfkRdyvbgwWdd2EPxJRG4=
+github.com/abadojack/whatlanggo v1.0.1/go.mod h1:66WiQbSbJBIlOZMsvbKe5m6pzQovxCH9B/K8tQB2uoc=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
@@ -85,6 +87,7 @@ golang.org/x/sys v0.0.0-20190222072716-a9d3bda3a223/go.mod h1:STP8DvDyc/dI5b8T5h
 golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190509141414-a5b02f93d862 h1:rM0ROo5vb9AdYJi1110yjWGMej9ITfKddS89P3Fkhug=
 golang.org/x/sys v0.0.0-20190509141414-a5b02f93d862/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/text v0.3.0 h1:g61tztE5qeGQ89tm6NTjjM9VPIm088od1l6aSorWRWg=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 gopkg.in/AlecAivazis/survey.v1 v1.8.4 h1:10xXXN3wgIhPheb5NI58zFgZv32Ana7P3Tl4shW+0Qc=
 gopkg.in/AlecAivazis/survey.v1 v1.8.4/go.mod h1:iBNOmqKz/NUbZx3bA+4hAGLRC7fSK7tgtVDT4tB22XA=

lib/renderer/webview/webview.go

@@ -1,6 +1,5 @@
-// Package wails implements Go bindings to https://github.com/zserge/webview C library.
+// Package webview implements Go bindings to https://github.com/zserge/webview C library.
 // It is a modified version of webview.go from that repository
-
 // Bindings closely repeat the C APIs and include both, a simplified
 // single-function API to just open a full-screen webview window, and a more
 // advanced and featureful set of APIs, including Go-to-JavaScript bindings.
@@ -14,7 +13,7 @@ package webview
 #cgo linux openbsd freebsd CFLAGS: -DWEBVIEW_GTK=1 -Wno-deprecated-declarations
 #cgo linux openbsd freebsd pkg-config: gtk+-3.0 webkit2gtk-4.0
 
-#cgo windows CFLAGS: -DWEBVIEW_WINAPI=1
+#cgo windows CFLAGS: -DWEBVIEW_WINAPI=1 -std=c99 -DUNICODE=1
 #cgo windows LDFLAGS: -lole32 -lcomctl32 -loleaut32 -luuid -lgdi32
 
 #cgo darwin CFLAGS: -DWEBVIEW_COCOA=1 -x objective-c

lib/renderer/webview/webview.h

@@ -217,6 +217,21 @@ struct webview_priv
     va_end(ap);
   }
 
+  WEBVIEW_API void webview_set_title(struct webview *w, const char *title)
+  {
+  #ifdef UNICODE
+    wchar_t *u16title = webview_to_utf16(title);
+    if (u16title == NULL)
+    {
+      return;
+    }
+    SetWindowText(w->priv.hwnd, u16title);
+    GlobalFree(u16title);
+  #else
+    SetWindowText(w->priv.hwnd, title);
+  #endif
+  }
+
   static int webview_js_encode(const char *s, char *esc, size_t n)
   {
     int r = 1; /* At least one byte for trailing zero */
@@ -1038,7 +1053,7 @@ struct webview_priv
     return S_FALSE;
   }
 
-  static const TCHAR *classname = "WebView";
+  static const TCHAR *classname = TEXT("WebView");
   static const SAFEARRAYBOUND ArrayBound = {1, 0};
 
   static IOleClientSiteVtbl MyIOleClientSiteTable = {
@@ -1227,7 +1242,7 @@ struct webview_priv
       }
       VariantInit(&myURL);
       myURL.vt = VT_BSTR;
-#ifndef UNICODE
+// #ifndef UNICODE
       {
         wchar_t *buffer = webview_to_utf16(webPageName);
         if (buffer == NULL)
@@ -1237,9 +1252,9 @@ struct webview_priv
         myURL.bstrVal = SysAllocString(buffer);
         GlobalFree(buffer);
       }
-#else
-      myURL.bstrVal = SysAllocString(webPageName);
-#endif
+// #else
+//       myURL.bstrVal = SysAllocString(webPageName);
+// #endif
       if (!myURL.bstrVal)
       {
       badalloc:
@@ -1277,7 +1292,7 @@ struct webview_priv
             if (!SafeArrayAccessData(sfArray, (void **)&pVar))
             {
               pVar->vt = VT_BSTR;
-#ifndef UNICODE
+// #ifndef UNICODE
               {
                 wchar_t *buffer = webview_to_utf16(url);
                 if (buffer == NULL)
@@ -1287,9 +1302,9 @@ struct webview_priv
                 bstr = SysAllocString(buffer);
                 GlobalFree(buffer);
               }
-#else
-              bstr = SysAllocString(string);
-#endif
+// #else
+//               bstr = SysAllocString(url);
+// #endif
               if ((pVar->bstrVal = bstr))
               {
                 htmlDoc2->lpVtbl->write(htmlDoc2, sfArray);
@@ -1404,6 +1419,7 @@ struct webview_priv
     {
       return -1;
     }
+
     ZeroMemory(&wc, sizeof(WNDCLASSEX));
     wc.cbSize = sizeof(WNDCLASSEX);
     wc.hInstance = hInstance;
@@ -1431,10 +1447,24 @@ struct webview_priv
     rect.bottom = rect.bottom - rect.top + top;
     rect.top = top;
 
+#ifdef UNICODE
+    wchar_t *u16title = webview_to_utf16(w->title);
+    if (u16title == NULL)
+    {
+      return -1;
+    }
+
     w->priv.hwnd =
+        CreateWindowEx(0, classname, u16title, style, rect.left, rect.top,
+                       rect.right - rect.left, rect.bottom - rect.top,
+                       HWND_DESKTOP, NULL, hInstance, (void *)w);
+#else
+  w->priv.hwnd =
         CreateWindowEx(0, classname, w->title, style, rect.left, rect.top,
                        rect.right - rect.left, rect.bottom - rect.top,
                        HWND_DESKTOP, NULL, hInstance, (void *)w);
+#endif
+    
     if (w->priv.hwnd == 0)
     {
       OleUninitialize();
@@ -1445,7 +1475,14 @@ struct webview_priv
 
     DisplayHTMLPage(w);
 
+#ifdef UNICODE
+    SetWindowText(w->priv.hwnd, u16title);
+    GlobalFree(u16title);
+#else
     SetWindowText(w->priv.hwnd, w->title);
+#endif
+    
+    
     ShowWindow(w->priv.hwnd, SW_SHOWDEFAULT);
     UpdateWindow(w->priv.hwnd);
     SetFocus(w->priv.hwnd);

runtime/window.go

@@ -1,6 +1,54 @@
 package runtime
 
-import "github.com/wailsapp/wails/lib/interfaces"
+import (
+	"bytes"
+	"runtime"
+
+	"github.com/abadojack/whatlanggo"
+	"github.com/wailsapp/wails/lib/interfaces"
+	"golang.org/x/text/encoding"
+	"golang.org/x/text/encoding/japanese"
+	"golang.org/x/text/encoding/korean"
+	"golang.org/x/text/encoding/simplifiedchinese"
+	"golang.org/x/text/transform"
+)
+
+func detectEncoding(text string) (encoding.Encoding, string) {
+	// korean
+	var enc encoding.Encoding
+	info := whatlanggo.Detect(text)
+	//fmt.Println("Language:", info.Lang.String(), " Script:", whatlanggo.Scripts[info.Script], " Confidence: ", info.Confidence)
+	switch info.Lang.String() {
+	case "Korean":
+		enc = korean.EUCKR
+	case "Mandarin":
+		enc = simplifiedchinese.GBK
+	case "Japanese":
+		enc = japanese.EUCJP
+	}
+	return enc, info.Lang.String()
+}
+
+// ProcessEncoding attempts to convert CKJ strings to UTF-8
+func ProcessEncoding(text string) string {
+	if runtime.GOOS != "windows" {
+		return text
+	}
+
+	encoding, _ := detectEncoding(text)
+	if encoding != nil {
+		var bufs bytes.Buffer
+		wr := transform.NewWriter(&bufs, encoding.NewEncoder())
+		_, err := wr.Write([]byte(text))
+		defer wr.Close()
+		if err != nil {
+			return ""
+		}
+
+		return bufs.String()
+	}
+	return text
+}
 
 // Window exposes an interface for manipulating the window
 type Window struct {
@@ -31,6 +79,7 @@ func (r *Window) UnFullscreen() {
 
 // SetTitle sets the the window title
 func (r *Window) SetTitle(title string) {
+	title = ProcessEncoding(title)
 	r.renderer.SetTitle(title)
 }