Fix #754

lua/cmp/core.lua

@@ -261,15 +261,27 @@ end
 
 ---Update completion menu
 core.filter = async.throttle(
-  vim.schedule_wrap(function(self)
+  setmetatable({
+    ctx = nil,
+  }, {
+    __call = function(this, self)
       self.filter.timeout = self.view:visible() and THROTTLE_TIME or 0
 
+      -- Check context changed.
+      local ctx = self:get_context()
+      if this.ctx and not this.ctx:changed(ctx) then
+        return
+      end
+      this.ctx = ctx
+
+      -- Check invalid condition.
       local ignore = false
       ignore = ignore or not api.is_suitable_mode()
       if ignore then
         return
       end
 
+      -- Check fetching sources.
       local sources = {}
       for _, s in ipairs(self:get_sources({ source.SourceStatus.FETCHING, source.SourceStatus.COMPLETED })) do
         if not s.incomplete and SOURCE_TIMEOUT > s:get_fetching_time() then
@@ -281,8 +293,6 @@ core.filter = async.throttle(
         table.insert(sources, s)
       end
 
-    local ctx = self:get_context()
-
       -- Display completion results.
       self.view:open(ctx, sources)
 
@@ -297,7 +307,8 @@ core.filter = async.throttle(
       end) == 0 then
       config.set_onetime({})
     end
-  end),
+  end
+  }),
   THROTTLE_TIME
 )
 

lua/cmp/init.lua

@@ -67,11 +67,13 @@ end
 
 ---Get current selected entry or nil
 cmp.get_selected_entry = function()
+  cmp.core.filter.raw(cmp.core)
   return cmp.core.view:get_selected_entry()
 end
 
 ---Get current active entry or nil
 cmp.get_active_entry = function()
+  cmp.core.filter.raw(cmp.core)
   return cmp.core.view:get_active_entry()
 end
 

lua/cmp/utils/async.lua

@@ -3,6 +3,7 @@ local async = {}
 ---@class cmp.AsyncThrottle
 ---@field public timeout number
 ---@field public stop function
+---@field public raw function
 ---@field public __call function
 
 ---@param fn function
@@ -12,11 +13,15 @@ async.throttle = function(fn, timeout)
   local time = nil
   local timer = vim.loop.new_timer()
   return setmetatable({
+    running = false,
     timeout = timeout,
     stop = function()
       time = nil
       timer:stop()
     end,
+    raw = function(...)
+      fn(...)
+    end,
   }, {
     __call = function(self, ...)
       local args = { ... }
@@ -28,9 +33,15 @@ async.throttle = function(fn, timeout)
 
       local delta = math.max(1, self.timeout - (vim.loop.now() - time))
       timer:start(delta, 0, function()
+        if not self.running then
           time = nil
+          self.running = true
+          vim.schedule(function()
+            self.running = false
             fn(unpack(args))
           end)
+        end
+      end)
     end,
   })
 end

lua/cmp/view.lua

@@ -198,7 +198,7 @@ end
 
 ---On entry change
 view.on_entry_change = async.throttle(
-  vim.schedule_wrap(function(self)
+  function(self)
     if not self:visible() then
       return
     end
@@ -225,7 +225,7 @@ view.on_entry_change = async.throttle(
     else
       self.ghost_text_view:hide()
     end
-  end),
+  end,
   20
 )