feat(app-list): implement workspace and configured-output filtering

[TobiasSchaffner]

This Implemens optional filtering of apps by active workspace or configured output in the App-List applet. The filter_top_levels config option accepts None (no filtering), ActiveWorkspace (workspace-only), or ConfiguredOutput (monitor and workspace filtering).

While this addresses #339 with the first config option my personal preference is monitor and workspace based filtering to let the applet only show apps that are currently active on the monitor. I am not sure if the present ConfiguredOutput option was meant for that or if I misused it.

[leviport]

I started taking this for a spin, and I'm not seeing any regressions, however I'm not sure which config file I can modify to try out the new modes. I looked for it in ~/.config/cosmic/com.system76.CosmicAppList/v1/, but that directory is empty. Where should I be looking for it?

[TobiasSchaffner]

I started taking this for a spin, and I'm not seeing any regressions, however I'm not sure which config file I can modify to try out the new modes. I looked for it in ~/.config/cosmic/com.system76.CosmicAppList/v1/, but that directory is empty. Where should I be looking for it?

You can add the option to ~/.config/cosmic/com.system76.CosmicAppList/v1/filter_top_levels
e.g. Some(ConfiguredOutput)

I think cosmic needs a user interface for applet configurations soon as already discussed here: #462

[leviport]

Thanks, that did the trick. Yep, the applet preferences GUI system is planned for later. Until then, applet configuration should be done in config files just like this.