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mapping.lua
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mapping.lua
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local types = require('cmp.types')
local misc = require('cmp.utils.misc')
local keymap = require('cmp.utils.keymap')
local function merge_keymaps(base, override)
local normalized_base = {}
for k, v in pairs(base) do
normalized_base[keymap.normalize(k)] = v
end
local normalized_override = {}
for k, v in pairs(override) do
normalized_override[keymap.normalize(k)] = v
end
return misc.merge(normalized_base, normalized_override)
end
local mapping = setmetatable({}, {
__call = function(_, invoke, modes)
if type(invoke) == 'function' then
local map = {}
for _, mode in ipairs(modes or { 'i' }) do
map[mode] = invoke
end
return map
end
return invoke
end,
})
---Mapping preset configuration.
mapping.preset = {}
---Mapping preset insert-mode configuration.
mapping.preset.insert = function(override)
return merge_keymaps(override or {}, {
['<Down>'] = {
i = mapping.select_next_item({ behavior = types.cmp.SelectBehavior.Select }),
},
['<Up>'] = {
i = mapping.select_prev_item({ behavior = types.cmp.SelectBehavior.Select }),
},
['<C-n>'] = {
i = function()
local cmp = require('cmp')
if cmp.visible() then
cmp.select_next_item({ behavior = types.cmp.SelectBehavior.Insert })
else
cmp.complete()
end
end,
},
['<C-p>'] = {
i = function()
local cmp = require('cmp')
if cmp.visible() then
cmp.select_prev_item({ behavior = types.cmp.SelectBehavior.Insert })
else
cmp.complete()
end
end,
},
['<C-y>'] = {
i = mapping.confirm({ select = false }),
},
['<C-e>'] = {
i = mapping.abort(),
},
})
end
---Mapping preset cmdline-mode configuration.
mapping.preset.cmdline = function(override)
return merge_keymaps(override or {}, {
['<C-z>'] = {
c = function()
local cmp = require('cmp')
if cmp.visible() then
cmp.select_next_item()
else
cmp.complete()
end
end,
},
['<Tab>'] = {
c = function()
local cmp = require('cmp')
if cmp.visible() then
cmp.select_next_item()
else
cmp.complete()
end
end,
},
['<S-Tab>'] = {
c = function()
local cmp = require('cmp')
if cmp.visible() then
cmp.select_prev_item()
else
cmp.complete()
end
end,
},
['<C-n>'] = {
c = function(fallback)
local cmp = require('cmp')
if cmp.visible() then
cmp.select_next_item()
else
fallback()
end
end,
},
['<C-p>'] = {
c = function(fallback)
local cmp = require('cmp')
if cmp.visible() then
cmp.select_prev_item()
else
fallback()
end
end,
},
['<C-e>'] = {
c = mapping.abort(),
},
['<C-y>'] = {
c = mapping.confirm({ select = false }),
},
})
end
---Invoke completion
---@param option? cmp.CompleteParams
mapping.complete = function(option)
return function(fallback)
if not require('cmp').complete(option) then
fallback()
end
end
end
---Complete common string.
mapping.complete_common_string = function()
return function(fallback)
if not require('cmp').complete_common_string() then
fallback()
end
end
end
---Close current completion menu if it displayed.
mapping.close = function()
return function(fallback)
if not require('cmp').close() then
fallback()
end
end
end
---Abort current completion menu if it displayed.
mapping.abort = function()
return function(fallback)
if not require('cmp').abort() then
fallback()
end
end
end
---Scroll documentation window.
mapping.scroll_docs = function(delta)
return function(fallback)
if not require('cmp').scroll_docs(delta) then
fallback()
end
end
end
---Select next completion item.
mapping.select_next_item = function(option)
return function(fallback)
if not require('cmp').select_next_item(option) then
local release = require('cmp').core:suspend()
fallback()
vim.schedule(release)
end
end
end
---Select prev completion item.
mapping.select_prev_item = function(option)
return function(fallback)
if not require('cmp').select_prev_item(option) then
local release = require('cmp').core:suspend()
fallback()
vim.schedule(release)
end
end
end
---Confirm selection
mapping.confirm = function(option)
return function(fallback)
if not require('cmp').confirm(option) then
fallback()
end
end
end
return mapping