RFC: cmdline completion (#362)

* manual support dot-repeat

* cmdwin and terminal

* cmdline only

* Fix

* fix

* Improve

* Fix test

* Support macro

* disable cmdline for now

* Simplify

* fmt

* consume once

* Ignore = type

* cmdline

* fmt

* Improve

* update

* fmt

* Support incsearch

* fix

* Add api

* Avoid cmdline completion if the native_menu enabled

* fix for macro

* Improve

* fmt

* Insert-mode only by default

* Update

* avoid conflict

* Improve default mapping

* Fix

* fix

* similar to native

* Update

* Fix README.md

* Improve

* Use <afile>

lua/cmp/config/mapping.lua

@@ -1,3 +1,5 @@
+local api = require('cmp.utils.api')
+
 local mapping
 mapping = setmetatable({}, {
   __call = function(_, invoke, modes)
@@ -7,9 +9,25 @@ mapping = setmetatable({}, {
           invoke(...)
         end,
         modes = modes or { 'i' },
+        __type = 'mapping',
       }
+    elseif type(invoke) == 'table' then
+      if invoke.__type == 'mapping' then
+        return invoke
+      else
+        return mapping(function(fallback)
+          if api.is_insert_mode() and invoke.i then
+            return invoke.i(fallback)
+          elseif api.is_cmdline_mode() and invoke.c then
+            return invoke.c(fallback)
+          elseif api.is_select_mode() and invoke.s then
+            return invoke.s(fallback)
+          else
+            fallback()
+          end
+        end, vim.tbl_keys(invoke))
+      end
     end
-    return invoke
   end,
 })
 
@@ -53,7 +71,9 @@ end
 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
@@ -62,7 +82,9 @@ end
 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