How do I customize the on_move_async previewer?

[comfortablynick]

I am trying to use the on_move_async api but I can't seem to make it work. For a simple example, this works without icons, but when g:clap_enable_icon = v:true, it does nothing. How do I manipulate the paths that are passed to clap#client#call_preview_file()?

[liuchengxu]

The backend requires a valid file path string. Given that clap is unable to interpret each entry and extract the filepath on its own, if your custom provider has a different format for each entry, you need to firstly extract a valid file path by hand and then pass it via fpath in the clap#client#call_preview_file(extra). For instance:

let g:clap_provider_quick_open = {
    \ 'source':  ['0:~/.vimrc', '1:~/.bashrc', '2:~/.zshrc'],
    \ 'sink':    'e',
    \ 'on_move_async': {->clap#client#call_preview_file({'fpath': split(g:clap.display.getcurline(), ':')[1]})},
    \ }

This commit 84cbe8d is required for passing the entries that contain ~, or you can convert it to an absolute path on Vim end.

[comfortablynick]

Thanks! I tried that before and it didn't work, but now it does.