Using Shortcut type to implement Ctrl+C copy

[Bob64]

I would like to attach Ctrl+C copy behaviour to a custom multiline TextEdit-like component in my application.

It's actually essentially a ListView using TextInput to implement delegates for each line.

I tried adding a Shortcut object as a child of the ListView, thus:

Shortcut {
        sequences: [StandardKey.Copy, "Ctrl+C"]
        onActivated: console.log("activated")
    }

However it is never triggered. There is hardly any documentation on Shortcut. I have done something similar to what is shown in the documentation that exists, but I have no clues as to why it doesn't work.

I know how to implement the copying if I can trigger onActivated as I already have it working for right-click and a pop-up menu.

Unfortunately my custom text view is necessary as it is used to display logs that can run to many 1000s of lines and this is the only way I could find to get reasonable performance - TextEdit became useless beyond a certain point. This means that I have had to implement a lot of stuff like multi-line selection myself, which would have come free with TextEdit. Ctrl+C copying is another example of this.