Feature request: navigate documentation buffer and limit height about nvim-compe HOT 13 CLOSED

@tami5 I've implemented scrolling mapping. Please see docs.

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If this problem was solved, please close this.

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Could you explain it in more little in detail?

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So basically, in addition to open/close the documentation window. on event, add <c-u> and <c-d> to navigated it. This is super useful when the content is 80 lines long and instead of having large preview window, it would be set to minheight and the user can navigate through it.

Does it make sense?

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I think documentation scrolling is easy. So we add it to README.md is enough.

nnoremap <expr> <C-f> <SID>scroll(+4)
nnoremap <expr> <C-u> <SID>scroll(-4)
inoremap <expr> <C-f> <SID>scroll(+4)
inoremap <expr> <C-u> <SID>scroll(-4)

function! s:scroll(count) abort
  let l:ctx = {}
  function! l:ctx.callback(count) abort
    let l:wins = nvim_list_wins()
    let l:wins = filter(l:wins, '!empty(nvim_win_get_config(v:val).relative)')
    if !empty(l:wins)
      call lamp#view#window#do(l:wins[0], { ->
      \   execute(printf('normal! %s%s%s%s',
      \     abs(a:count),
      \     a:count >= 0 ? "\<C-e>" : "\<C-y>",
      \     abs(a:count),
      \     a:count >= 0 ? 'j' : 'k',
      \   ))
      \ })
    endif
  endfunction
  call timer_start(100, { -> l:ctx.callback(a:count) })
  return "\<Ignore>"
endfunction

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I don't understand how would this control the popup? 🤔 also, scroll will only be useful when the max height of the popup can be limited to certain extend.

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Ah. You want to enter to popup, right?
It's bit difficult now... hm...

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I mean by control the popup is to control only what part is visible through scrolling the popup buffer ... hope you understand that way.

For scrolling we can easily attach to it mappings when it get created and destroyed with it.

That is by normally binding buffer local mapping nnoremap <buffer> in the global scope that control that popup and then during close unmap

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I think #57 (comment) is realizing scrolling...

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Thanks a lot @hrsh7th, I'll test out soon

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Well ... it would be nice to only map nav keys when the popup show and map them back when popup closes. I usually have inter mode mapping for c-f,c-b,c-d and it would be cool to have them working if no popup

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Hm... I can add the compe#scroll({ 'delta': +4, 'fallback': ... })

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Oh @hrsh7th that would be awesome !!!

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