fix: detect encoding on windows

* Patch for file dialog on OSX

CONTRIBUTORS.md

@@ -19,3 +19,4 @@ Wails is what it is because of the time and effort given by these great people.
 * [Nikolai Zimmermann](https://github.com/Chronophylos)
 * [Toyam Cox](https://github.com/Vaelatern)
 * [Robin Eklind](https://github.com/mewmew)
+* [Kris Raney](https://github.com/kraney)

cmd/version.go

@@ -1,4 +1,4 @@
 package cmd
 
 // Version - Wails version
-const Version = "v0.18.3"
+const Version = "v0.18.5"

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
@@ -25,6 +26,9 @@ 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 1.13

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=
@@ -83,6 +85,7 @@ 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

@@ -11,7 +11,7 @@
 package webview
 
 /*
-#cgo linux openbsd freebsd CFLAGS: -DWEBVIEW_GTK=1
+#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

lib/renderer/webview/webview.h

@@ -86,7 +86,7 @@ struct webview_priv
   NSAutoreleasePool *pool;
   NSWindow *window;
   WebView *webview;
-  id windowDelegate;
+  id delegate;
   int should_exit;
 };
 #else
@@ -1894,6 +1894,22 @@ struct webview_priv
     [script setValue:self forKey:@"external"];
   }
 
+static void webview_run_input_open_panel(id self, SEL cmd, id webview,
+                                           id listener, BOOL allowMultiple) {
+    char filename[256] = "";
+    struct webview *w =
+        (struct webview *)objc_getAssociatedObject(self, "webview");
+
+    webview_dialog(w, WEBVIEW_DIALOG_TYPE_OPEN, WEBVIEW_DIALOG_FLAG_FILE, "", "",
+                   filename, 255);
+    if (strlen(filename)) {
+      [listener chooseFilename:[NSString stringWithUTF8String:filename]];
+    } else {
+      [listener cancel];
+    }
+  }
+
+
   static void webview_external_invoke(id self, SEL cmd, id arg)
   {
     struct webview *w =
@@ -1927,12 +1943,17 @@ struct webview_priv
     class_addMethod(webViewDelegateClass,
                     sel_registerName("webView:didClearWindowObject:forFrame:"),
                     (IMP)webview_did_clear_window_object, "v@:@@@");
+    class_addMethod(
+        webViewDelegateClass,
+        sel_registerName("webView:runOpenPanelForFileButtonWithResultListener:"
+                         "allowMultipleFiles:"),
+        (IMP)webview_run_input_open_panel, "v@:@@c");
     class_addMethod(webViewDelegateClass, sel_registerName("invoke:"),
                     (IMP)webview_external_invoke, "v@:@");
     objc_registerClassPair(webViewDelegateClass);
 
-    w->priv.windowDelegate = [[webViewDelegateClass alloc] init];
-    objc_setAssociatedObject(w->priv.windowDelegate, "webview", (id)(w),
+    w->priv.delegate = [[webViewDelegateClass alloc] init];
+    objc_setAssociatedObject(w->priv.delegate, "webview", (id)(w),
                              OBJC_ASSOCIATION_ASSIGN);
 
     NSRect r = NSMakeRect(0, 0, w->width, w->height);
@@ -1960,7 +1981,7 @@ struct webview_priv
     NSString *nsTitle = [NSString stringWithUTF8String:w->title];
     [w->priv.window setTitle:nsTitle];
 
-    [w->priv.window setDelegate:w->priv.windowDelegate];
+    [w->priv.window setDelegate:w->priv.delegate];
     [w->priv.window center];
 
     //  NSToolbar *toolbar = [[NSToolbar alloc] initWithIdentifier:@"wat"];
@@ -1989,7 +2010,8 @@ struct webview_priv
     [w->priv.webview setAutoresizesSubviews:YES];
     [w->priv.webview
         setAutoresizingMask:NSViewWidthSizable | NSViewHeightSizable];
-    w->priv.webview.frameLoadDelegate = w->priv.windowDelegate;
+    w->priv.webview.frameLoadDelegate = w->priv.delegate;
+    w->priv.webview.UIDelegate = w->priv.delegate;
     [[w->priv.window contentView] addSubview:w->priv.webview];
     [w->priv.window orderFrontRegardless];
 

runtime/window.go

@@ -1,6 +1,53 @@
 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()
+}
+
+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 +78,7 @@ func (r *Window) UnFullscreen() {
 
 // SetTitle sets the the window title
 func (r *Window) SetTitle(title string) {
+	title = ProcessEncoding(title)
 	r.renderer.SetTitle(title)
 }