Support vibrancy and transparency for webview

Options Colour -> RGBA

v2/internal/ffenestri/ffenestri.go

@@ -139,8 +139,8 @@ func (a *Application) Run(incomingDispatcher Dispatcher, bindings string) error
 	// 	C.DisableFrame(a.app)
 	// }
 
-	if a.config.Colour != 0 {
+	if a.config.RGBA != 0 {
-		r, g, b, alpha := intToColour(a.config.Colour)
+		r, g, b, alpha := intToColour(a.config.RGBA)
 		C.SetColour(a.app, r, g, b, alpha)
 	}
 

v2/internal/ffenestri/ffenestri_darwin.c

@@ -119,6 +119,8 @@ struct Application {
     int green;
     int blue;
     int alpha;
+    int webviewIsTranparent;
+    const char *vibrancy;
 
     // Features
     int frame;
@@ -148,7 +150,6 @@ struct Application {
 
 void TitlebarAppearsTransparent(struct Application* app) {
     app->titlebarAppearsTransparent = 1;
-    Debug("[x] setTitlebarAppearsTransparent %d", app->titlebarAppearsTransparent? YES:NO);
 }
 
 void HideTitle(struct Application *app) {
@@ -167,6 +168,19 @@ void UseToolbar(struct Application *app) {
     app->useToolBar = 1;
 }
 
+// WebviewIsTransparent will make the webview transparent
+// revealing the Cocoa window underneath
+void WebviewIsTransparent(struct Application *app) {
+    app->webviewIsTranparent = 1;
+}
+
+// SetVibrancy will set the window's vibrancy to the
+// given value
+void SetVibrancy(struct Application *app, const char *vibrancy) {
+    app->vibrancy = vibrancy;
+}
+
+
 void applyWindowColour(struct Application *app) {
     // Apply the colour only if the window has been created
     if( app->mainWindow != NULL ) {
@@ -271,8 +285,10 @@ void* NewApplication(const char *title, int width, int height, int resizable, in
     result->fullSizeContent = 0;
     result->useToolBar = 0;
     result->hideToolbarSeparator = 0;
+    result->vibrancy = "NSAppearanceNameAqua";
 
     result->titlebarAppearsTransparent = 0;
+    result->webviewIsTranparent = 0;
 
     result->sendMessageToBackend = (ffenestriCallback) messageFromWindowCallback;
 
@@ -413,7 +429,6 @@ void SetSize(struct Application *app, int width, int height) {
         frame.origin.y = (frame.origin.y + frame.size.height) - (float)height;
         frame.size.width = (float)width;
         frame.size.height = (float)height;
-        dumpFrame("after", frame);
 
         msg(app->mainWindow, s("setFrame:display:animate:"), frame, 1, 0);
     )
@@ -837,6 +852,16 @@ void Run(void *applicationPointer, int argc, char **argv) {
                     1, 
                     1));
 
+    if( app->webviewIsTranparent == 1 ) {
+        msg(wkwebview, s("setValue:forKey:"), msg(c("NSNumber"), s("numberWithBool:"), 1), str("drawsTransparentBackground"));
+    }
+
+    // Set Vibrancy
+    msg(mainWindow, s("setAppearance:"),
+        msg(c("NSAppearance"), s("appearanceNamed:"), str(app->vibrancy))
+    );
+
+
     // Finally call run
     Debug("Run called");
     msg(application, s("run"));

v2/internal/ffenestri/ffenestri_darwin.go

@@ -11,6 +11,8 @@ extern void FullSizeContent(void *);
 extern void UseToolbar(void *);
 extern void HideToolbarSeparator(void *);
 extern void DisableFrame(void *);
+extern void SetVibrancy(void *, const char *);
+extern void WebviewIsTransparent(void *);
 */
 import "C"
 
@@ -51,4 +53,14 @@ func (a *Application) processPlatformSettings() {
 	if titlebar.TitlebarAppearsTransparent && titlebar.HideTitle {
 		C.DisableFrame(a.app)
 	}
+
+	// Process window vibrancy
+	if mac.Vibrancy != "" {
+		C.SetVibrancy(a.app, a.string2CString(string(mac.Vibrancy)))
+	}
+
+	// Check if the webview should be transparent
+	if mac.WebviewIsTransparent {
+		C.WebviewIsTransparent(a.app)
+	}
 }

v2/pkg/options/default.go

@@ -8,8 +8,10 @@ var Default = &App{
 	Width:    1024,
 	Height:   768,
 	DevTools: true,
-	Colour:   0xFFFFFFFF,
+	RGBA:     0xFFFFFFFF,
 	Mac: &mac.Options{
-		TitleBar: mac.TitleBarDefault(),
+		TitleBar:             mac.TitleBarDefault(),
+		Vibrancy:             mac.NSAppearanceNameAqua,
+		WebviewIsTransparent: false,
 	},
 }

v2/pkg/options/mac/mac.go

@@ -2,5 +2,7 @@ package mac
 
 // Options ae options speific to Mac
 type Options struct {
-	TitleBar *TitleBar
+	TitleBar             *TitleBar
+	Vibrancy             VibrancyType
+	WebviewIsTransparent bool
 }

v2/pkg/options/mac/vibrancy.go

@@ -0,0 +1,21 @@
+package mac
+
+// VibrancyType is a type of vibrancy for Cocoa windows
+type VibrancyType string
+
+const (
+	// NSAppearanceNameAqua - The standard light system appearance.
+	NSAppearanceNameAqua VibrancyType = "NSAppearanceNameAqua"
+	// NSAppearanceNameDarkAqua - The standard dark system appearance.
+	NSAppearanceNameDarkAqua VibrancyType = "NSAppearanceNameDarkAqua"
+	// NSAppearanceNameVibrantLight - The light vibrant appearance
+	NSAppearanceNameVibrantLight VibrancyType = "NSAppearanceNameVibrantLight"
+	// NSAppearanceNameAccessibilityHighContrastAqua - A high-contrast version of the standard light system appearance.
+	NSAppearanceNameAccessibilityHighContrastAqua VibrancyType = "NSAppearanceNameAccessibilityHighContrastAqua"
+	// NSAppearanceNameAccessibilityHighContrastDarkAqua - A high-contrast version of the standard dark system appearance.
+	NSAppearanceNameAccessibilityHighContrastDarkAqua VibrancyType = "NSAppearanceNameAccessibilityHighContrastDarkAqua"
+	// NSAppearanceNameAccessibilityHighContrastVibrantLight - A high-contrast version of the light vibrant appearance.
+	NSAppearanceNameAccessibilityHighContrastVibrantLight VibrancyType = "NSAppearanceNameAccessibilityHighContrastVibrantLight"
+	// NSAppearanceNameAccessibilityHighContrastVibrantDark - A high-contrast version of the dark vibrant appearance.
+	NSAppearanceNameAccessibilityHighContrastVibrantDark VibrancyType = "NSAppearanceNameAccessibilityHighContrastVibrantDark"
+)

v2/pkg/options/options.go

@@ -20,7 +20,7 @@ type App struct {
 	MaxHeight     int
 	StartHidden   bool
 	DevTools      bool
-	Colour        int
+	RGBA          int
 	Mac           *mac.Options
 }
 

v2/test/runtime/frontend/src/assets/css/main.css

@@ -3,6 +3,7 @@ body {
   font-family: 'Roboto';
   min-height: 75rem;
   padding-top: 4.5rem;
+  background-color: #0000;
 }
 
 .form-check-label {

v2/test/runtime/main.go

@@ -22,11 +22,12 @@ func main() {
 		Height:        620,
 		DisableResize: false,
 		Fullscreen:    false,
-		Colour:        0xFF000088,
+		RGBA:          0xFF0000FF,
 		Mac: &mac.Options{
 			// TitleBar: mac.TitleBarHidden(),
 			// TitleBar: mac.TitleBarHiddenInset(),
 			TitleBar: mac.TitleBarDefault(),
+			Vibrancy: mac.NSAppearanceNameDarkAqua,
 		},
 	})