From 000129201c54d4ba391f7473d0c183f000246c3e Mon Sep 17 00:00:00 2001
From: errael <errael@raelity.com>
Date: Thu, 7 Nov 2024 00:21:28 -0800
Subject: perf(mouse): only generate <MouseMove> for a new cell positon
 (#31103)

Problem: Can receive dozens of <MouseMove> events for same cell position. #30965
Solution: Leverage check_multiclick() to detect if cell position is unchanged.
---
 test/functional/ui/mouse_spec.lua | 24 +++++++++++++++++++-----
 1 file changed, 19 insertions(+), 5 deletions(-)

(limited to 'test/functional/ui/mouse_spec.lua')

diff --git a/test/functional/ui/mouse_spec.lua b/test/functional/ui/mouse_spec.lua
index bc18680749..09aa3f17b3 100644
--- a/test/functional/ui/mouse_spec.lua
+++ b/test/functional/ui/mouse_spec.lua
@@ -1908,19 +1908,33 @@ describe('ui/mouse/input', function()
     eq(0, api.nvim_get_var('mouse_up2'))
   end)
 
-  it('<MouseMove> is not translated into multiclicks and can be mapped', function()
+  it('<MouseMove> to different locations can be mapped', function()
     api.nvim_set_var('mouse_move', 0)
     api.nvim_set_var('mouse_move2', 0)
     command('nnoremap <MouseMove> <Cmd>let g:mouse_move += 1<CR>')
     command('nnoremap <2-MouseMove> <Cmd>let g:mouse_move2 += 1<CR>')
-    feed('<MouseMove><0,0>')
-    feed('<MouseMove><0,0>')
-    api.nvim_input_mouse('move', '', '', 0, 0, 0)
-    api.nvim_input_mouse('move', '', '', 0, 0, 0)
+    feed('<MouseMove><1,0>')
+    feed('<MouseMove><2,0>')
+    api.nvim_input_mouse('move', '', '', 0, 0, 3)
+    api.nvim_input_mouse('move', '', '', 0, 0, 4)
     eq(4, api.nvim_get_var('mouse_move'))
     eq(0, api.nvim_get_var('mouse_move2'))
   end)
 
+  it('<MouseMove> to same location does not generate events #31103', function()
+    api.nvim_input_mouse('move', '', '', 0, 0, 3)
+    api.nvim_set_var('mouse_move', 0)
+    api.nvim_set_var('mouse_move2', 0)
+    command('nnoremap <MouseMove> <Cmd>let g:mouse_move += 1<CR>')
+    command('nnoremap <2-MouseMove> <Cmd>let g:mouse_move2 += 1<CR>')
+    feed('<MouseMove><3,0>')
+    feed('<MouseMove><3,0>')
+    api.nvim_input_mouse('move', '', '', 0, 0, 3)
+    api.nvim_input_mouse('move', '', '', 0, 0, 3)
+    eq(0, api.nvim_get_var('mouse_move'))
+    eq(0, api.nvim_get_var('mouse_move2'))
+  end)
+
   it('feeding <MouseMove> in Normal mode does not use uninitialized memory #19480', function()
     feed('<MouseMove>')
     n.poke_eventloop()
-- 
cgit