Platform diferences

[Kevin Rushforth]

Positioning of Windows, among other window system interactions, is 
inherently platform specific. We added language, primarily in support of 
Wayland, to clarify this, but I can easily imagine other windowing 
environments where this is also true. We should try for consistency 
where possible, but recognize that some things are under control of the 
system.

-- Kevin

On 6/17/2024 1:46 PM, Thiago Milczarek Sayão wrote:
> I'm forwarding here since it's unrelated to the specific issue.
>
> The existing behavior on Linux is to center the windows. I think we 
> should let the window manager decide and don't touch the initial 
> position (unless the user sets it).
>
> On mutter, for example, there's an option to automatically center the 
> windows. There's also an option to automatically maximize windows near 
> screen size (and we probably break it).
>
> There's also window managers like i3 on which making effort to center 
> the windows are pointless since it's a tiling wm.
>
> We should let some platform details be different, I think.
>
> -- Thiago
>
> ---------- Forwarded message ---------
> De: *Andy Goryachev* <notifications at github.com>
> Date: seg., 17 de jun. de 2024 às 16:51
> Subject: Re: [openjdk/jfx] 8332222: Linux Debian: Maximized stage 
> shrinks when opening another stage (PR #1460)
> To: openjdk/jfx <jfx at noreply.github.com>
> Cc: Thiago Milczarek Sayão <thiago.sayao at gmail.com>, Mention 
> <mention at noreply.github.com>
>
>
> Question. I see different behavior between macOS and linux mint with 
> the attached program (unmodified master branch).
>
> On mac, the alert window is always positioned at the upper left 
> corner, while on linux it is correctly placed at the center of the 
> screen. Is this expected?
>
> Also on mac, as I understand it, there is no "maximized" state, only 
> full screen. So when the alert window comes up, the main window slides 
> out of view and all we see is the black screen and alert widow at the 
> upper left corner.
>
> Unless we move the main window to another monitor. In that case I can 
> see a number of differences:
>
>  1. main window in normal state, the alert comes up on a primary
>     screen and not on the screen where the main window is located
>  2. when main window is "maximized" to full screen, both screens go
>     into full screen mode, one (secondary) with the main window, the
>     other (primary) with a black background. an alert pops up on the
>     primary screen (i.e. other than the screen with the main window),
>     but this time it is correctly positioned at the center of the
>     primary screen.
>
> I feel this behavior (on mac) is unexpected. Any ideas?
>
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