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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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89
test/functional/clipboard/clipboard_provider_spec.lua
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@@ -3,7 +3,7 @@
local helpers = require('test.functional.helpers')(after_each)
local Screen = require('test.functional.ui.screen')
local clear, feed, insert = helpers.clear, helpers.feed, helpers.insert
local feed_command, expect, eq, eval = helpers.feed_command, helpers.expect, helpers.eq, helpers.eval
local feed_command, expect, eq, eval, source = helpers.feed_command, helpers.expect, helpers.eq, helpers.eval, helpers.source
local command = helpers.command
local meths = helpers.meths
@@ -147,6 +147,93 @@ describe('clipboard', function()
eq('clippy!', eval('provider#clipboard#Executable()'))
eq('', eval('provider#clipboard#Error()'))
end)
it('g:clipboard using VimL functions', function()
-- Implements a fake clipboard provider. cache_enabled is meaningless here.
source([[let g:clipboard = {
\ 'name': 'custom',
\ 'copy': {
\ '+': {lines, regtype -> extend(g:, {'dummy_clipboard_plus': [lines, regtype]}) },
\ '*': {lines, regtype -> extend(g:, {'dummy_clipboard_star': [lines, regtype]}) },
\ },
\ 'paste': {
\ '+': {-> get(g:, 'dummy_clipboard_plus', [])},
\ '*': {-> get(g:, 'dummy_clipboard_star', [])},
\ },
\ 'cache_enabled': 1,
\}]])
eq('', eval('provider#clipboard#Error()'))
eq('custom', eval('provider#clipboard#Executable()'))
eq('', eval("getreg('*')"))
eq('', eval("getreg('+')"))
command('call setreg("*", "star")')
command('call setreg("+", "plus")')
eq('star', eval("getreg('*')"))
eq('plus', eval("getreg('+')"))
command('call setreg("*", "star", "v")')
eq({{'star'}, 'v'}, eval("g:dummy_clipboard_star"))
command('call setreg("*", "star", "V")')
eq({{'star', ''}, 'V'}, eval("g:dummy_clipboard_star"))
command('call setreg("*", "star", "b")')
eq({{'star', ''}, 'b'}, eval("g:dummy_clipboard_star"))
end)
describe('g:clipboard[paste] VimL function', function()
it('can return empty list for empty clipboard', function()
source([[let g:dummy_clipboard = []
let g:clipboard = {
\ 'name': 'custom',
\ 'copy': { '*': {lines, regtype -> 0} },
\ 'paste': { '*': {-> g:dummy_clipboard} },
\}]])
eq('', eval('provider#clipboard#Error()'))
eq('custom', eval('provider#clipboard#Executable()'))
eq('', eval("getreg('*')"))
end)
it('can return a list with a single string', function()
source([=[let g:dummy_clipboard = ['hello']
let g:clipboard = {
\ 'name': 'custom',
\ 'copy': { '*': {lines, regtype -> 0} },
\ 'paste': { '*': {-> g:dummy_clipboard} },
\}]=])
eq('', eval('provider#clipboard#Error()'))
eq('custom', eval('provider#clipboard#Executable()'))
eq('hello', eval("getreg('*')"))
source([[let g:dummy_clipboard = [''] ]])
eq('', eval("getreg('*')"))
end)
it('can return a list of lines if a regtype is provided', function()
source([=[let g:dummy_clipboard = [['hello'], 'v']
let g:clipboard = {
\ 'name': 'custom',
\ 'copy': { '*': {lines, regtype -> 0} },
\ 'paste': { '*': {-> g:dummy_clipboard} },
\}]=])
eq('', eval('provider#clipboard#Error()'))
eq('custom', eval('provider#clipboard#Executable()'))
eq('hello', eval("getreg('*')"))
end)
it('can return a list of lines instead of [lines, regtype]', function()
source([=[let g:dummy_clipboard = ['hello', 'v']
let g:clipboard = {
\ 'name': 'custom',
\ 'copy': { '*': {lines, regtype -> 0} },
\ 'paste': { '*': {-> g:dummy_clipboard} },
\}]=])
eq('', eval('provider#clipboard#Error()'))
eq('custom', eval('provider#clipboard#Executable()'))
eq('hello\nv', eval("getreg('*')"))
end)
end)
end)
describe('clipboard', function()