app: add support to hidden minimize and maximize buttons on macos and …

[kkeybbs]

Two options app.HiddenMinimizeButton and app.HiddenMaximizeButton are added to create a window without minimize or/and maximize buttons.

hide both minimize and maximize buttons

w := new(app.Window)
w.Option(app.HiddenMinimizeButton(true), app.HiddenMaximizeButton(true))

hide minimize button, keep maximize button:

w := new(app.Window)
w.Option(app.HiddenMinimizeButton(true), app.HiddenMaximizeButton(false))

• on macOS:

• on Windows:

[theclapp]

I think you should either note that these don't work under Linux, or make them work under Linux.

[kkeybbs]

I have tried for days to test on ubuntu with os_x11.go, but still not working.

• _NET_WM_ALLOWED_ACTIONS
• _MOTIF_WM_HINTS
• _NET_WM_WINDOW_TYPE: _NET_WM_WINDOW_TYPE_DIALOG

They all didn't work. I belive these properties also depend on window manager implementation, according to infomations bellow:

• https://specifications.freedesktop.org/wm-spec/1.3/ar01s05.html
• https://stackoverflow.com/questions/14442081/disable-actions-move-resize-minimize-etc-using-python-xlib
• https://superuser.com/questions/186748/how-to-hide-or-minimize-x11-window-from-console

I'll continue wokring to make them work on x11 and wayland, but this may take long time.
So I add tips "only works for windows and macOS" for the options.
Maybe the feature working only on some os is acceptable?

[theclapp]

Maybe the feature working only on some os is acceptable?

Fine with me. Better than nothing! Thanks for trying.

[eliasnaur]

Can you describe the use-cases you need these controls for? Can we just automatically apply them when, say, MinSize == MaxSize?

[kkeybbs]

Can you describe the use-cases you need these controls for? Can we just automatically apply them when, say, MinSize == MaxSize?

Some usefull cases in my business products:

• using both HiddenMaximizeButton and HiddenMinimizeButton
  • Making a dialog window, such as application's "About" dialog. Just need closing insteadof minimizing and maximizing.
  • Instead of minimizing to Dock, user can click the app, and makes it work in the background and an icon in the systray. Users like this easy experience, it saves spaces in Dock.
• using HiddenMaximizeButton, to disallow a window to be a fullscreen window in new desktop on macOS.

So maybe I can try how to make a window be dialog in x11.

Sometimes HiddenMaximizeButton can be automatically apply with "MinSize == MaxSize", but not always when size is screen size. Maximizing will make the window as a new fullscreen window in macOS. So leave them standalone will be better.