qt: Close All Wallets menu option should be available #18845

Currently, the File menu offers no option to close all loaded wallets at once.

In cases where users have many (+5) wallets loaded, the usual...

Open File Menu -> Select Close Wallet -> Answer MsgBox Question with YES

...can quickly become very unpleasant.

Therefore, I'd recommend to implement a new menu option, Close All Wallets, that can:

• Close all loaded wallets,
• but still offers the do-you-want-to-close-this-wallet option, in cases where only certain wallets should be closed,
• and is disabled, when there are no wallets loaded.

UI

Demo Code

I have implemented a variant that's showcasing a possible solution, but because I:

• don't know about possible reasons to not include an option like this
• am not sure, if there are maybe similar solutions in the making (have checked commit history a bit, but not thorough enough to be sure)
• would like to know how to make a proper Qt test for it, before making a PR out of it.

Regards,

This looks the same as #15202.

This looks the same as #15202.

While doing this, we should care about not creating new synchronous calls.

This looks the same as #15202.

Thanks, will then continue there.

@brakmic thanks, didn't update/push my PR due to some lack of interest but I'll do it shortly then.

we should care about not creating new synchronous calls. @hebasto what do you mean?

@promag

we should care about not creating new synchronous calls.

@hebasto what do you mean?

I mean do not block/freeze the GUI :D