Support Show/Hide window

Better demo
window.Run() -> window.Show()

exp/examples/window/main.go

@@ -44,7 +44,7 @@ func main() {
 				SetTitle("Window "+strconv.Itoa(windowCounter)).
 				SetPosition(rand.Intn(1000), rand.Intn(800)).
 				SetURL("https://wails.io").
-				Run()
+				Show()
 			windowCounter++
 		})
 
@@ -71,6 +71,13 @@ func main() {
 			w.SetMaxSize(600, 600)
 		})
 	})
+	sizeMenu.Add("Get Current Window Size").OnClick(func(ctx *application.Context) {
+		currentWindow(func(w *application.Window) {
+			width, height := w.Size()
+			app.NewInfoDialog().SetTitle("Current Window Size").SetMessage("Width: " + strconv.Itoa(width) + " Height: " + strconv.Itoa(height)).Show()
+		})
+	})
+
 	sizeMenu.Add("Reset Min Size").OnClick(func(ctx *application.Context) {
 		currentWindow(func(w *application.Window) {
 			w.SetMinSize(0, 0)
@@ -94,6 +101,14 @@ func main() {
 			w.SetPosition(rand.Intn(1000), rand.Intn(800))
 		})
 	})
+
+	positionMenu.Add("Get Position").OnClick(func(ctx *application.Context) {
+		currentWindow(func(w *application.Window) {
+			x, y := w.Position()
+			app.NewInfoDialog().SetTitle("Current Window Position").SetMessage("X: " + strconv.Itoa(x) + " Y: " + strconv.Itoa(y)).Show()
+		})
+	})
+
 	positionMenu.Add("Center").OnClick(func(ctx *application.Context) {
 		currentWindow(func(w *application.Window) {
 			w.Center()
@@ -127,6 +142,33 @@ func main() {
 			w.Restore()
 		})
 	})
+	stateMenu.Add("Hide (for 2 seconds)").OnClick(func(ctx *application.Context) {
+		currentWindow(func(w *application.Window) {
+			w.Hide()
+			time.Sleep(2 * time.Second)
+			w.Show()
+		})
+	})
+	stateMenu.Add("Always on Top").OnClick(func(ctx *application.Context) {
+		currentWindow(func(w *application.Window) {
+			w.SetAlwaysOnTop(true)
+		})
+	})
+	stateMenu.Add("Not always on Top").OnClick(func(ctx *application.Context) {
+		currentWindow(func(w *application.Window) {
+			w.SetAlwaysOnTop(false)
+		})
+	})
+	stateMenu.Add("Google.com").OnClick(func(ctx *application.Context) {
+		currentWindow(func(w *application.Window) {
+			w.SetURL("https://google.com")
+		})
+	})
+	stateMenu.Add("wails.io").OnClick(func(ctx *application.Context) {
+		currentWindow(func(w *application.Window) {
+			w.SetURL("https://wails.io")
+		})
+	})
 
 	app.NewWindow()
 

exp/pkg/application/application.go

@@ -140,7 +140,7 @@ func (a *App) NewWindowWithOptions(windowOptions *options.Window) *Window {
 		a.windowAliasesLock.Unlock()
 	}
 	if a.running {
-		newWindow.Run()
+		newWindow.run()
 	}
 
 	return newWindow
@@ -192,7 +192,7 @@ func (a *App) Run() error {
 
 	// run windows
 	for _, window := range a.windows {
-		go window.Run()
+		go window.run()
 	}
 
 	// run system trays

exp/pkg/application/window.go

@@ -50,6 +50,8 @@ type (
 		isFullscreen() bool
 		disableSizeConstraints()
 		setFullscreenButtonEnabled(enabled bool)
+		show()
+		hide()
 	}
 )
 
@@ -137,7 +139,7 @@ func (w *Window) SetSize(width, height int) *Window {
 	return w
 }
 
-func (w *Window) Run() {
+func (w *Window) run() {
 	if w.impl != nil {
 		return
 	}
@@ -155,6 +157,22 @@ func (w *Window) SetAlwaysOnTop(b bool) *Window {
 	return w
 }
 
+func (w *Window) Show() *Window {
+	if w.impl == nil {
+		w.run()
+		return w
+	}
+	w.impl.show()
+	return w
+}
+func (w *Window) Hide() *Window {
+	w.options.Hidden = true
+	if w.impl != nil {
+		w.impl.hide()
+	}
+	return w
+}
+
 func (w *Window) SetURL(s string) *Window {
 	w.options.URL = s
 	if w.impl != nil {

exp/pkg/application/window_darwin.go

@@ -125,22 +125,6 @@ void windowSetSize(void* nsWindow, int width, int height) {
 	});
 }
 
-// Show the NSWindow
-void windowShow(void* nsWindow) {
-	// Show window on main thread
-	dispatch_async(dispatch_get_main_queue(), ^{
-		[(NSWindow*)nsWindow makeKeyAndOrderFront:nil];
-	});
-}
-
-// Hide the NSWindow
-void windowHide(void* nsWindow) {
-	// Hide window on main thread
-	dispatch_async(dispatch_get_main_queue(), ^{
-		[(NSWindow*)nsWindow orderOut:nil];
-	});
-}
-
 // Set NSWindow always on top
 void windowSetAlwaysOnTop(void* nsWindow, bool alwaysOnTop) {
 	// Set window always on top on main thread
@@ -676,6 +660,19 @@ static void windowDisableSizeConstraints(void *window) {
 	});
 }
 
+static void windowShow(void *window) {
+	dispatch_async(dispatch_get_main_queue(), ^{
+		// show window
+		[(NSWindow*)window makeKeyAndOrderFront:nil];
+	});
+}
+
+static void windowHide(void *window) {
+	dispatch_async(dispatch_get_main_queue(), ^{
+		[(NSWindow*)window orderOut:nil];
+	});
+}
+
 */
 import "C"
 import (
@@ -694,6 +691,14 @@ type macosWindow struct {
 	parent   *Window
 }
 
+func (w *macosWindow) show() {
+	C.windowShow(w.nsWindow)
+}
+
+func (w *macosWindow) hide() {
+	C.windowHide(w.nsWindow)
+}
+
 func (w *macosWindow) setFullscreenButtonEnabled(enabled bool) {
 	C.setFullscreenButtonEnabled(w.nsWindow, C.bool(enabled))
 }
@@ -972,8 +977,9 @@ func (w *macosWindow) run() {
 		if w.parent.options.HTML != "" {
 			w.setHTML(w.parent.options.HTML)
 		}
-
-		C.windowShow(w.nsWindow)
+		if w.parent.options.Hidden == false {
+			C.windowShow(w.nsWindow)
+		}
 	})
 }
 

exp/pkg/options/window.go

@@ -37,6 +37,7 @@ type Window struct {
 	X                       int
 	Y                       int
 	FullscreenButtonEnabled bool
+	Hidden                  bool
 }
 
 var WindowDefaults = &Window{