switcher: render in stacking order

[ammen99]

Fixes #2907

@marcusbritanicus @CCobaltDev does this fix the issue as I think it should?

[CCobaltDev]

testing now

[CCobaltDev]

It fixes the rendering problem (i think?) but makes switching feel really weird

i'd expect it to switch by last-switched-to/by-focus

[ammen99]

It fixes the rendering problem (i think?) but makes switching feel really weird

i'd expect it to switch by last-switched-to/by-focus

This PR only changes the rendering order but I think I see the issue is more general than I thought. The order of views during the animation is last-focused, but the end state is stacking, so a proper solution would require some special animations to transition between the two. Thanks for testing so far...

[CCobaltDev]

Any updates?

[ammen99]

@CCobaltDev I had some time today and looked again, let me know what you think about the newest version of the code. It is not perfect if you set it to a very slow animation (at 3-4 seconds length you can see artifacts here and there) but I think it should be relatively smooth for normal animation durations (<1s).

[CCobaltDev]

I like the switcher transparency
There are some window shaking/jitter artifacts with 2 windows

But doing the switch still has some odd behavior - not sure how to describe it so here's my exact case

I have 3 windows open: Firefox, Vesktop, Alacritty
When I focus Firefox and alt+tab, it shows Vesktop, Firefox, Alacritty - Firefox should be last, right? This also leads to where pressing alt+tab twice with 3 windows open has 0 net effect after the animation - same window focused as before the switcher activation
@ammen99

[ammen99]

@CCobaltDev I pushed some further changes which I think should improve the cases you mentioned, let me know what you think :)

[CCobaltDev]

Seems to be working great!

[CCobaltDev]

Thank you so much!

[ammen99]

Thank you so much!

Thanks for testing :)