Feat/cosmic applet

[Profiidev]

Add an applet for the Cosmic Desktop. Closes #11

Functionality:

• Search with modes: plain, regex, mime-type
• Click entry to paste
• Detail view when right clicking an entry
• Delete or Favorite an entry from the detail view
• Keyboard navigation using tabs and enter for paste
• Settings menu when right clicking the icon to configure position and search mode
• Toggle with global keyboard shortcut using ringboard-cosmic-applet toggle

Known Issues (also documented in the README of the applet):

• When the search field is focused you need to press "Esc" 2 times to close the window. This is due to the first "Esc" being captured by the search field and not propagated as keyboard event
• Text can not be selected in the detail view. This is due to the text widget in cosmic not supporting this
• Search field is not automatically focused when opening the window. The command to focus the search is send but it seems like that when sending it before the window gets rendered for the first time it does nothing. This could be solved with a delay which could focus the search to late when the user starts typing to early or focus the search to early when the applet is not rendered

[SUPERCILEX]

This is awesome, thank you! I'll start digging into it next week.

[SUPERCILEX]

All the icons have a weird box shadow thing going, is that normal for cosmic?

[Profiidev]

Can you send a screenshot because i don't see any shadow

[SUPERCILEX]

I'm talking about the stacked corner in the bottom left and top right. There's an extra offset box in the background. But I think this is just what cosmic icons look like? So seems fine.

[Profiidev]

could also be just a rasteriser issuer / artifact

[SUPERCILEX]

Is this necessary? On X11, the startup latency is just terrible so keeping the application around is necessary to avoid the stuttery feeling of opening the clipboard. IIRC on Wayland startup was so fast that it didn't make a difference. If that's the case, I think I'd prefer to avoid keeping the application around to not hog memory (for example image buffers).

[Profiidev]

The application keeps running anyway, because the icon in the top panel wouldn't show up otherwise. I could clear the data saved in memory when closing the popup do reduce the memory usage in idle. The IPC is also required to make it possible to open the clipboard with a global keyboard shortcut, because it is running in the panel continuously and not exited when the popup is closed.

[SUPERCILEX]

Cool, that makes sense. I'll switch to using egui's notification mechanism with your toggle idea which is quite nice.

[SUPERCILEX]

Note to self: get rid of watcher utils crate and move into SDK under feature gate. Move startup code from egui into SDK under feature gate. Use toggle command to try and open existing instance with PID check.

[Profiidev]

You need to keep in mind that cosmic applets are launched once per screen where the panel is enabled and the toggle needs to be received by multiple apps and not just by one

[SUPERCILEX]

Damn, I thought that sounded crazy but you're right, I see every applet duplicated. Like surely it can't be that hard to make clicking the icon open one process and move the window around appropriately? Maybe there's an issue with dpi changes? Seems like a waste of resources.

Anyway, the current approach is broken though: if I have 3 monitors, I don't want the shortcut to open up the popup on all 3 monitors. Do you know if there's a way to detect which display you're on? Or more accurately which status bar?

[SUPERCILEX]

Hmmm, one insane idea would be to make the main GUI not an applet but rather just be a normal libcosmic app. And then the applet is actually just a thin wrapper that launches said GUI. This is maybe nice because you can then keep the clipboard open and move it around rather than having it pinned to the panel?

[Profiidev]

The weird part is it only opens on one monitor when pressing the shortcut at the moment. And i checked, the toggle is received by every instance of the application.

[Profiidev]

And even weirder it always opens on the correct monitor

[SUPERCILEX]

Oh fascinating, I wonder how that works. I'm still thinking of doing the non-applet + applet shortcut idea as the primary benefit I see from this project is using libcosmic to get themeing and use the same design language as the OS. Or do you think there's an appeal to having the application literally displayed in an applet panel? Hmmm, I guess if you're using tiling then the normal application will squeeze in and be irritating as opposed to the floating window. So maybe actually this does need to stay in the applet. I'll think about it.

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[Profiidev]

You don't need a seperate app for the icon because there is https://github.com/pop-os/cosmic-applets/tree/master/cosmic-panel-button which takes a desktop file as an argument and just is a simple app that displayes an icon in the panel. The cosmic-launcher and also other apps in cosmic work like this. The only big thing you need to change for that would be to integrate the settings into the main window because there is no right click for the cosmic-panel-button when you use it.

[Profiidev]

Why did you remove the journald logging? When the app is running in normal release model an is installed on a system you can't get any logs from it.

[SUPERCILEX]

I'm planning on getting rid of all logging. Anything worth logging in a GUI should be surfaced to the user IMO. The rest is just for devs and you can add pruntlns as neede when debugging stuff.

[Profiidev]

but printlns are useless when testing the application launched by cosmic directly in the panel, because you don't have the stdout of the process