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clipboard: Support custom VimL functions #9304

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Up to now g:clipboard["copy"] only supported string values invoked as
system commands.

This commit enables the use of VimL functions instead. The function
signatures are the same as in provider/clipboard.vim. A clipboard
provider is expected to store and return a list of lines (i.e. the text)
and a register type (as seen in setreg()).

cache_enabled is ignored if "copy" is provided by a VimL function.
This commit is contained in:
Rui Abreu Ferreira
2018-12-01 15:30:50 +00:00
committed by Justin M. Keyes
parent b19403e73e
commit 07ad5d71ab
3 changed files with 134 additions and 7 deletions
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25
runtime/autoload/provider/clipboard.vim
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@@ -55,11 +55,22 @@ endfunction
function! provider#clipboard#Executable() abort
if exists('g:clipboard')
if type({}) isnot# type(g:clipboard)
\ || type({}) isnot# type(get(g:clipboard, 'copy', v:null))
\ || type({}) isnot# type(get(g:clipboard, 'paste', v:null))
let s:err = 'clipboard: invalid g:clipboard'
return ''
endif
if type(get(g:clipboard, 'copy', v:null)) isnot# v:t_dict
\ && type(get(g:clipboard, 'copy', v:null)) isnot# v:t_func
let s:err = "clipboard: invalid g:clipboard['copy']"
return ''
endif
if type(get(g:clipboard, 'paste', v:null)) isnot# v:t_dict
\ && type(get(g:clipboard, 'paste', v:null)) isnot# v:t_func
let s:err = "clipboard: invalid g:clipboard['paste']"
return ''
endif
let s:copy = get(g:clipboard, 'copy', { '+': v:null, '*': v:null })
let s:paste = get(g:clipboard, 'paste', { '+': v:null, '*': v:null })
let s:cache_enabled = get(g:clipboard, 'cache_enabled', 0)
@@ -127,7 +138,9 @@ if empty(provider#clipboard#Executable())
endif
function! s:clipboard.get(reg) abort
if s:selections[a:reg].owner > 0
if type(s:paste[a:reg]) == v:t_func
return s:paste[a:reg]()
elseif s:selections[a:reg].owner > 0
return s:selections[a:reg].data
end
return s:try_cmd(s:paste[a:reg])
@@ -141,6 +154,12 @@ function! s:clipboard.set(lines, regtype, reg) abort
end
return 0
end
if type(s:copy[a:reg]) == v:t_func
call s:copy[a:reg](a:lines, a:regtype)
return 0
end
if s:cache_enabled == 0
call s:try_cmd(s:copy[a:reg], a:lines)
return 0