Fix ALE, generate help, set completion for clevertab per buffer, disable mouse preview

vimrc

@@ -1,22 +1,45 @@
-set mouse=a cb=unnamed,unnamedplus wim=longest,list,full backspace=indent,eol,start cmdheight=1 bg=dark nu rnu cot=menu si sta cpt=.,w,b,i tf foldmethod=syntax path+=** nocompatible sc nosmd listchars=trail:·,eol:,tab:\  list directory=$HOME/.vim/swap// shm=asTIt fo=rn hls lbr is lz
+set cb=unnamed,unnamedplus wim=longest,list,full backspace=indent,eol,start cmdheight=1 bg=dark nu rnu cot=menu si sta cpt=.,w,b,i tf foldmethod=syntax path+=** nocompatible sc nosmd listchars=trail:·,eol:,tab:\  list directory=$HOME/.vim/swap// shm=asTIt fo=rn hls lbr is lz
 filetype plugin indent on
 syntax on
 colorscheme delek
 
 let g:ale_completion_enabled = 1
-let g:ale_lint_on_text_changed = 'never'
-let g:ale_lint_on_insert_leave = 0
-let g:ale_lint_on_enter = 0
 let g:ale_fix_on_save = 1
+let g:ale_hover_to_preview = 1
 let g:ale_fixers = {
 \   '*': ['remove_trailing_lines', 'trim_whitespace'],
 \   'go': ['gofmt'],
 \}
-set omnifunc=ale#completion#OmniFunc
-highlight clear ALEErrorSign
-highlight clear ALEWarningSign
+let g:ale_sign_error = 'E>'
+let g:ale_sign_warning = 'W>'
+let g:ale_sign_info = 'I>'
+let g:ale_floating_window_border = ''
+let g:ale_floating_preview = 1
+let g:ale_detail_to_floating_preview = 1
+let g:ale_hover_to_preview = 1
+let g:ale_hover_to_floating_preview = 1
+highlight SignColumn ctermbg=none
 let g:airline#extensions#ale#enabled = 1
 
+function BufferSettings()
+	let lsp_found=0
+	for linter in ale#linter#Get(&filetype)
+		if !empty(linter.lsp) && ale#lsp_linter#CheckWithLSP(bufnr(''), linter)
+			let lsp_found=1
+		endif
+	endfor
+	if (lsp_found)
+		nnoremap <buffer> K :ALEDocumentation<cr>
+		nnoremap <buffer> gr :ALEFindReferences<cr>
+		nnoremap <buffer> gd :ALEGoToDefinition<cr>
+		nnoremap <buffer> gy :ALEGoToTypeDefinition<cr>
+		nnoremap <buffer> gh :ALEHover<cr>
+
+		setlocal omnifunc=ale#completion#OmniFunc
+	endif
+endfunction
+autocmd BufRead,FileType * call BufferSettings()
+
 let g:netrw_banner = 0
 let g:netrw_liststile = 3
 
@@ -28,8 +51,24 @@ let g:airline_theme='term'
 cnoremap w!! execute 'silent! write !doas tee % >/dev/null' <bar> edit! <CR>
 cnoremap i! execute 'silent! write !doas make install' <CR>
 
+function! CleverTab()
+	if &omnifunc != ''
+		return "\<C-X>\<C-O>"
+	elseif &spell
+		return "\<C-X>\<C-S>"
+	else
+		return "\<C-X>\<C-P>"
+	endif
+endfunction
+
+inoremap <silent><tab> <c-r>=CleverTab()<cr>
+inoremap <silent><s-tab> <Tab>
+
 autocmd FileType yaml setlocal sw=8 sts=8 expandtab
 
 autocmd FileType tex command! Comp execute 'silent !pdflatex %' <bar> redraw!
 autocmd FileType less command! Comp execute 'silent !lessc % %:r.css' <bar> redraw!
 autocmd FileType tex command! Compdoc execute 'silent !pandoc -t docx % -o %:r.docx' <bar> redraw!
+
+packloadall
+silent! helptags ALL