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feat(lua)!: register_keystroke_callback => on_key

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Analogous to nodejs's `on('data', …)` interface, here on_key is the "add
listener" interface.

ref 3ccdbc570d #12536

BREAKING_CHANGE: vim.register_keystroke_callback() is now an error.
This commit is contained in:
Justin M. Keyes
2021-08-22 18:26:35 -07:00
parent 4eb1ebbcf7
commit 69fe427df4
9 changed files with 91 additions and 105 deletions
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72
test/functional/lua/vim_spec.lua
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@@ -6,6 +6,7 @@ local funcs = helpers.funcs
local meths = helpers.meths
local dedent = helpers.dedent
local command = helpers.command
local insert = helpers.insert
local clear = helpers.clear
local eq = helpers.eq
local ok = helpers.ok
@@ -1881,7 +1882,7 @@ describe('lua stdlib', function()
end)
it('vim.region', function()
helpers.insert(helpers.dedent( [[
insert(helpers.dedent( [[
text tααt tααt text
text tαxt txtα tex
text tαxt tαxt
@@ -1889,65 +1890,67 @@ describe('lua stdlib', function()
eq({5,15}, exec_lua[[ return vim.region(0,{1,5},{1,14},'v',true)[1] ]])
end)
describe('vim.execute_on_keystroke', function()
it('should keep track of keystrokes', function()
helpers.insert([[hello world ]])
describe('vim.on_key', function()
it('tracks keystrokes', function()
insert([[hello world ]])
exec_lua [[
KeysPressed = {}
keys = {}
vim.register_keystroke_callback(function(buf)
vim.on_key(function(buf)
if buf:byte() == 27 then
buf = "<ESC>"
end
table.insert(KeysPressed, buf)
table.insert(keys, buf)
end)
]]
helpers.insert([[next 🤦 lines å ]])
insert([[next 🤦 lines å ]])
-- It has escape in the keys pressed
eq('inext 🤦 lines å <ESC>', exec_lua [[return table.concat(KeysPressed, '')]])
eq('inext 🤦 lines å <ESC>', exec_lua [[return table.concat(keys, '')]])
end)
it('should allow removing trackers.', function()
helpers.insert([[hello world]])
it('allows removing on_key listeners', function()
insert([[hello world]])
exec_lua [[
KeysPressed = {}
keys = {}
return vim.register_keystroke_callback(function(buf)
return vim.on_key(function(buf)
if buf:byte() == 27 then
buf = "<ESC>"
end
table.insert(KeysPressed, buf)
table.insert(keys, buf)
end, vim.api.nvim_create_namespace("logger"))
]]
helpers.insert([[next lines]])
insert([[next lines]])
exec_lua("vim.register_keystroke_callback(nil, vim.api.nvim_create_namespace('logger'))")
eq(1, exec_lua('return vim.on_key()'))
exec_lua("vim.on_key(nil, vim.api.nvim_create_namespace('logger'))")
eq(0, exec_lua('return vim.on_key()'))
helpers.insert([[more lines]])
insert([[more lines]])
-- It has escape in the keys pressed
eq('inext lines<ESC>', exec_lua [[return table.concat(KeysPressed, '')]])
eq('inext lines<ESC>', exec_lua [[return table.concat(keys, '')]])
end)
it('should not call functions that error again.', function()
helpers.insert([[hello world]])
it('skips any function that caused an error', function()
insert([[hello world]])
exec_lua [[
KeysPressed = {}
keys = {}
return vim.register_keystroke_callback(function(buf)
return vim.on_key(function(buf)
if buf:byte() == 27 then
buf = "<ESC>"
end
table.insert(KeysPressed, buf)
table.insert(keys, buf)
if buf == 'l' then
error("Dumb Error")
@@ -1955,35 +1958,30 @@ describe('lua stdlib', function()
end)
]]
helpers.insert([[next lines]])
helpers.insert([[more lines]])
insert([[next lines]])
insert([[more lines]])
-- Only the first letter gets added. After that we remove the callback
eq('inext l', exec_lua [[ return table.concat(KeysPressed, '') ]])
eq('inext l', exec_lua [[ return table.concat(keys, '') ]])
end)
it('should process mapped keys, not unmapped keys', function()
it('processes mapped keys, not unmapped keys', function()
exec_lua [[
KeysPressed = {}
keys = {}
vim.cmd("inoremap hello world")
vim.register_keystroke_callback(function(buf)
vim.on_key(function(buf)
if buf:byte() == 27 then
buf = "<ESC>"
end
table.insert(KeysPressed, buf)
table.insert(keys, buf)
end)
]]
insert("hello")
helpers.insert("hello")
local next_status = exec_lua [[
return table.concat(KeysPressed, '')
]]
eq("iworld<ESC>", next_status)
eq('iworld<ESC>', exec_lua[[return table.concat(keys, '')]])
end)
end)