[Feature] Support Creation of Windows at Specified Monitor

internal/driver/embedded/window.go

@@ -87,6 +87,10 @@ func (w *noosWindow) Show() {
 	w.d.renderWindow(w)
 }
 
+func (w *noosWindow) ShowAtPos(xPos int, yPos int) {
+	w.Show()
+}
+
 func (w *noosWindow) Hide() {}
 
 func (w *noosWindow) Close() {

internal/driver/glfw/window.go

@@ -134,7 +134,7 @@ func (w *window) detectTextureScale() float32 {
 	return float32(texWidth) / float32(winWidth)
 }
 
-func (w *window) Show() {
+func (w *window) show(xPos int, yPos int) {
 	async.EnsureMain(func() {
 		if w.view() != nil {
 			w.doShowAgain()
@@ -154,16 +154,20 @@ func (w *window) Show() {
 		view := w.view()
 		view.SetTitle(w.title)
 
-		if !build.IsWayland && w.centered {
-			w.doCenterOnScreen() // lastly center if that was requested
+		if xPos != 0 || yPos != 0 {
+			view.SetPos(xPos, yPos)
 		}
-		view.Show()
 
 		// save coordinates
-		if !build.IsWayland {
-			w.xpos, w.ypos = view.GetPos()
+		if !build.IsWayland || xPos != 0 || yPos != 0 {
+			w.xpos, w.ypos = xPos, yPos
 		}
 
+		if !build.IsWayland && w.centered {
+			w.doCenterOnScreen() // lastly center if that was requested
+		}
+		view.Show()
+
 		if w.fullScreen { // this does not work if called before viewport.Show()
 			w.doSetFullScreen(true)
 		}
@@ -177,6 +181,21 @@ func (w *window) Show() {
 	})
 }
 
+func (w *window) Show() {
+	xPos, yPos := 0, 0
+
+	view := w.view()
+	if view != nil && !build.IsWayland {
+		xPos, yPos = view.GetPos()
+	}
+
+	w.show(xPos, yPos)
+}
+
+func (w *window) ShowAtPos(xPos int, yPos int) {
+	w.show(xPos, yPos)
+}
+
 func (w *window) Hide() {
 	async.EnsureMain(func() {
 		if w.closing || w.viewport == nil {

internal/driver/mobile/window.go

@@ -130,6 +130,10 @@ func (w *window) Show() {
 	}
 }
 
+func (w *window) ShowAtPos(xPos int, yPos int) {
+	w.Show()
+}
+
 func (w *window) Hide() {
 	w.visible = false
 

test/window.go

@@ -131,6 +131,10 @@ func (w *window) Show() {
 	w.RequestFocus()
 }
 
+func (w *window) ShowAtPos(xPos int, yPos int) {
+	w.Show()
+}
+
 func (w *window) ShowAndRun() {
 	w.Show()
 }

window.go

@@ -79,6 +79,9 @@ type Window interface {
 
 	// Show the window on screen.
 	Show()
+	// Show the window on screen at a position.
+	// Since 2.8
+	ShowAtPos(int, int)
 	// Hide the window from the user.
 	// This will not destroy the window or cause the app to exit.
 	Hide()