Launcher: Use selection object for action

[iLLiCiTiT]

Changelog Description

Prepared selection object that helps to handle selection in Launcher actions.

Additional info

The object should backwards compatible for unconverted actions.

Testing notes:

1. Launcher actions are working (e.g. applications)
2. It would be nice to test backwards compatibility of uncorverted actions but I don't have any.

[BigRoy]

Could you point me to where we're actually setting these from the launcher? I can't seem to find that.

[iLLiCiTiT]

Nowhere.

[BigRoy]

In that case - we shouldn't expose it as if it'll be available? :) Or will you be adding commits to fix it? :)

[BigRoy]

Ah wait, I only now see that it queries it whenever you access it. Nevermind. I'm blind.

Should maybe stab myself in the eye with a fork to wake me up.

[iLLiCiTiT]

Why not? It might be used for testing.

[BigRoy]

Launcher actions are working (e.g. applications)

Confirmed.

It would be nice to test backwards compatibility of uncorverted actions but I don't have any.

This plugin doesn't seem to get listed for me.

Using the .get method gives me:

AYON_TASK_NAME None
AYON_FOLDER_PATH None
AYON_PROJECT_NAME ayontest

Even when I have a folder and task selected.

---

By the way, if for whatever reason you iterate the object I get this:

    for key in session:
  File "E:\dev\ayon-core\client\ayon_core\pipeline\actions.py", line 71, in __getitem__
    raise KeyError(f"Key: {key} not found")

Which seemed confusing. The old dict could be iterable. (Not that I've really used that, just by accident now iterated the new object as I was debugging)

[iLLiCiTiT]

This plugin doesn't seem to get listed for me.

Should be fixed

[BigRoy]

My custom actions now show up and launch ok. 👍