Feature Idea: Confirm Before Close (Always)

[lrljoe]

For my implementation, I've done some very basic customisation, to allow for a Modal to optionally "confirm before close" regardless of if it's dirty or not.

While you can of course do the documented implementation below, or something similar (for ensuring it always confirms), it felt a bit like it should be part of the core package.

@script
  <script>
        $wire.on('closingModalOnEscape', data => {
            if ($wire.isDirty && !confirm('{{ __('You have unsaved changes. Are you sure you want to close this dialog?') }}')) {
                data.closing = false;
            }
        });
        $wire.on('closingModalOnClickAway', data => {
            if ($wire.isDirty && !confirm('{{ __('You have unsaved changes. Are you sure you want to close this dialog?') }}')) {
                data.closing = false;
            }
        });
  </script>
@endscript

I thought it may be useful to be able to define at a Modal level that it should be "confirm before close".

To do this in a slightly customised implementation, I added two new static methods/properties, and added them into the modalProperties array.
Then I just did a check in the "closeModal" js method.

Thoughts on whether this is something that may be wanted? If so - I'll open a PR