Dialog.setPresentationMode

Sets presentation mode for self.

When set to [adw.types.DialogPresentationMode.Auto], the dialog appears as a bottom sheet when the following condition is met: max-width: 450px or max-height: 360px, and as a floating window otherwise.

Set it to [adw.types.DialogPresentationMode.Floating] or [adw.types.DialogPresentationMode.BottomSheet] to always present it a floating window or a bottom sheet respectively, regardless of available size.

Presentation mode does nothing for dialogs presented as a window.