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clipboard: keep track of ownership and cache clipboard data locally

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Helped-By: Justin M. Keyes <justinkz@gmail.com>
This commit is contained in:
Björn Linse 2015-03-01 14:10:42 +01:00 committed by Justin M. Keyes
parent a0e89978bd
commit d133502e98
1 changed files with 49 additions and 7 deletions
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56
runtime/autoload/provider/clipboard.vim
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@ -1,9 +1,23 @@
" The clipboard provider uses shell commands to communicate with the clipboard.
" The provider function will only be registered if one of the supported
" commands are available.
" The provider function will only be registered if a supported command is
" available.
let s:copy = {}
let s:paste = {}
" When caching is enabled, store the jobid of the xclip/xsel process keeping
" ownership of the selection, so we know how long the cache is valid.
let s:selection = { 'owner': 0, 'data': [] }
function! s:selection.on_exit(jobid, data, event)
" At this point this nvim instance might already have launched
" a new provider instance. Don't drop ownership in this case.
if self.owner == a:jobid
let self.owner = 0
endif
endfunction
let s:selections = { '*': s:selection, '+': copy(s:selection)}
function! s:try_cmd(cmd, ...)
let argv = split(a:cmd, " ")
let out = a:0 ? systemlist(argv, a:1, 1) : systemlist(argv, [''], 1)
@ -14,20 +28,23 @@ function! s:try_cmd(cmd, ...)
return out
endfunction
let s:cache_enabled = 1
if executable('pbcopy')
let s:copy['+'] = 'pbcopy'
let s:paste['+'] = 'pbpaste'
let s:copy['*'] = s:copy['+']
let s:paste['*'] = s:paste['+']
let s:cache_enabled = 0
elseif executable('xclip')
let s:copy['+'] = 'xclip -i -selection clipboard'
let s:copy['+'] = 'xclip -quiet -i -selection clipboard'
let s:paste['+'] = 'xclip -o -selection clipboard'
let s:copy['*'] = 'xclip -i -selection primary'
let s:copy['*'] = 'xclip -quiet -i -selection primary'
let s:paste['*'] = 'xclip -o -selection primary'
elseif executable('xsel')
let s:copy['+'] = 'xsel -i -b'
let s:copy['+'] = 'xsel --nodetach -i -b'
let s:paste['+'] = 'xsel -o -b'
let s:copy['*'] = 'xsel -i -p'
let s:copy['*'] = 'xsel --nodetach -i -p'
let s:paste['*'] = 'xsel -o -p'
else
echom 'clipboard: No shell command for communicating with the clipboard found.'
@ -37,11 +54,36 @@ endif
let s:clipboard = {}
function! s:clipboard.get(reg)
if s:selections[a:reg].owner > 0
return s:selections[a:reg].data
end
return s:try_cmd(s:paste[a:reg])
endfunction
function! s:clipboard.set(lines, regtype, reg)
call s:try_cmd(s:copy[a:reg], a:lines)
if s:cache_enabled == 0
call s:try_cmd(s:copy[a:reg], a:lines)
return 0
end
let selection = s:selections[a:reg]
if selection.owner > 0
" The previous provider instance should exit when the new one takes
" ownership, but kill it to be sure we don't fill up the job table.
call jobstop(selection.owner)
end
let selection.data = [a:lines, a:regtype]
let argv = split(s:copy[a:reg], " ")
let jobid = jobstart(argv, selection)
if jobid <= 0
echohl WarningMsg
echo "clipboard: error when invoking provider"
echohl None
return 0
endif
call jobsend(jobid, a:lines)
call jobclose(jobid, 'stdin')
let selection.owner = jobid
endfunction
function! provider#clipboard#Call(method, args)