Re: Push or simulate a Alt+Tab event to keyboard

[Felipe Borges <felipeborges gnome org>]

Hi,

On Tue, Mar 3, 2020 at 11:16 AM Dario Lesca <d lesca solinos it> wrote:
> Hi everybody, this is my first message on this ML, but I am a Gnome
> user since always.
>
> Now I want produce a little personal gnome shell extension with this
> features:
>
> A little button on top bar, or somewhere, when pressing this button,
> push a Alt+Tab event and focus windows swap like I press the ALT+TAB
> button
>
> What internal gnome shell function I must use?
> There is some example to copy for do that?
>
> For now I have found this method via a little Phyton script
>
> #!/usr/bin/python3
> import pyautogui
> pyautogui.hotkey('alt', 'tab')

Instead of emulating the key-press events, you could attempt to call
the switcher directly.

Check how GNOME Shell constructs the AppSwitcherPopup and use it
directly in your extension.
https://gitlab.gnome.org/GNOME/gnome-shell/-/blob/master/js/ui/windowManager.js#L1986

That seems to be instantiated in Main.wm._startSwitcher.

> But in order to let it work, must install on Fedora 31 some extra
> package[1] (python3-tkinter, python3-devel, scrot, ecc) for use
> pyautogui.hotkey()
>
> Then before to do that on other my system, I try to ask you if there is
> an internal gnome shell function to call for do same thing.
>
> Many thanks for your attention and patient.
>
> [1] -
> https://stackoverflow.com/questions/49231756/how-to-install-pyautogui-on-fedora-27
>
>
> --
> Dario Lesca
> (inviato dal mio Linux Fedora 31 Workstation)
>
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