Mobile: open pop-up (or any other overlay) does not play well with window-head

[toaster]

Checklist

• I have searched the issue tracker for open issues that relate to the same problem, before opening a new one.
• This issue only relates to a single bug. I will open new issues for any other problems.

Describe the bug

When opening a pop-up (or other overlays) on a subsequent mobile window (i.e., one with a window-head), it disables all interaction outside the pop-up including the “close window” button (good) but it does not expand the transparent overlay background to the window-head and thus does not close the pop-up when tapping there (bad).
This leads to the impression that the “close window” button is broken, if there’s still a pop-up open.

How to reproduce

1. Open a subsequent mobile window.
2. Open a pop-up there.
3. Tap on the “close window” button in the window-head while the pop-up is still open.

Screenshots

No response

Example code

package main

import (
	"fyne.io/fyne/v2/app"
	"fyne.io/fyne/v2/container"
	"fyne.io/fyne/v2/widget"
)

func main() {
	a := app.New()
	w := a.NewWindow("main")
	b := widget.NewButton("Open Window", func() {
		sw := a.NewWindow("sub")
		sw.SetContent(
			container.NewVBox(
				widget.NewSelect([]string{"one", "two"}, func(string) {}),
			),
		)
		sw.Show()
	})
	w.SetContent(b)
	w.ShowAndRun()
}

Fyne version

develop

Go compiler version

1.22.1

Operating system and version

macOS 14.5

Additional Information

No response

[andydotxyz]

To be consistent with other platforms shouldn't the close window button still work even if there is a popup over the content?

[toaster]

Yeah, that would be one way to solve the issue.