design

README.md

@@ -71,10 +71,8 @@ lua <<EOF
         -- vim.fn["UltiSnips#Anon"](args.body) -- For `ultisnips` users.
       end,
     },
-    window = {
-      -- completion = cmp.config.window.bordered(),
-      -- documentation = cmp.config.window.bordered(),
-    },
+    view = require('cmp-default-view')({
+    }),
     mapping = cmp.mapping.preset.insert({
       ['<C-b>'] = cmp.mapping.scroll_docs(-4),
       ['<C-f>'] = cmp.mapping.scroll_docs(4),

lua/cmp-default-view/init.lua

@@ -0,0 +1,45 @@
+
+---@class cmp-default-menu-view.Option
+---@field public border string|string[]
+---@field public highlight string|table<string,string>
+
+local View = {}
+View.__index = View
+
+---@param option cmp-default-menu-view.Option
+function View.new(option)
+  local self = setmetatable({}, View)
+  self.option = option
+  return self
+end
+
+---@param context cmp.ViewContext
+function View:show(context)
+end
+
+---@param context cmp.ViewContext
+function View:hide(context)
+end
+
+---@param context cmp.ViewContext
+function View:select(context)
+end
+
+---@param option cmp-default-menu-view.Option
+return function(option)
+  local view = View.new(option)
+
+  ---@param context cmp.ViewContext
+  return function(context)
+    context:on_show(function()
+      view:show(context)
+    end)
+    context:on_hide(function()
+      view:hide(context)
+    end)
+    context:on_select(function()
+      view:select(context)
+    end)
+  end
+end
+

lua/cmp/view_context.lua

@@ -0,0 +1,29 @@
+local event = require "cmp.utils.event"
+
+---@class cmp.ViewContext
+---@field public event cmp.Event
+local ViewContext = {}
+
+function ViewContext.new()
+  local self = setmetatable({}, { __index = ViewContext })
+  self.event = event.new()
+  return self
+end
+
+---@param callback fun(context: cmp.ViewContext)
+function ViewContext:on_show(callback)
+  self.event:on('show', callback)
+end
+
+---@param callback fun(context: cmp.ViewContext)
+function ViewContext:on_hide(callback)
+  self.event:on('hide', callback)
+end
+
+---@param callback fun(context: cmp.ViewContext)
+function ViewContext:on_select(callback)
+  self.event:on('select', callback)
+end
+
+return ViewContext
+