fix(popup): wrong extmark data sync when lines changed in popup preview #30246

Problem: when popup preview buffer has filetype like markdown and ts
is enabled, the extmark clean and update not correct, if add the extmark
sync there has lots of duplicate codes like nvim_buf_set_lines.

Solution: use nvim_buf_set_lines api internally to set info to popup
preview buffer.

1 files changed, 102 insertions, 3 deletions

diff --git a/test/functional/ui/popupmenu_spec.lua b/test/functional/ui/popupmenu_spec.lua
index d1228d3607..60d59190ce 100644
--- a/test/functional/ui/popupmenu_spec.lua
+++ b/test/functional/ui/popupmenu_spec.lua
@@ -1680,7 +1680,7 @@ describe('builtin popupmenu', function()
       end)
     end
 
-    describe('floating window preview #popup', function()
+    describe('floating window preview popup', function()
       it('pum popup preview', function()
         --row must > 10
         screen:try_resize(40, 11)
@@ -1693,14 +1693,29 @@ describe('builtin popupmenu', function()
           endfunc
           set omnifunc=Omni_test
           set completeopt=menu,popup
-
           funct Set_info()
             let comp_info = complete_info()
             if comp_info['selected'] == 2
               call nvim__complete_set(comp_info['selected'], {"info": "3info"})
             endif
           endfunc
-          autocmd CompleteChanged * call Set_info()
+          funct TsHl()
+            let comp_info = complete_info()
+            if get(comp_info, 'previewbufnr', 0) > 0
+              call v:lua.vim.treesitter.start(comp_info['preview_bufnr'], 'markdown')
+            endif
+            if comp_info['selected'] == 0
+              call nvim__complete_set(comp_info['selected'], {"info": "```lua\nfunction test()\n  print('foo')\nend\n```"})
+            endif
+          endfunc
+          augroup Group
+            au!
+            autocmd CompleteChanged * :call Set_info()
+          augroup END
+          funct TestTs()
+            autocmd! Group
+            autocmd CompleteChanged * call TsHl()
+          endfunc
         ]])
         feed('Gi<C-x><C-o>')
         --floating preview in right
@@ -2004,6 +2019,90 @@ describe('builtin popupmenu', function()
           ]],
           }
         end
+        feed('<C-E><Esc>')
+
+        -- works when scroll with treesitter highlight
+        command('call TestTs()')
+        feed('S<C-x><C-o>')
+        if multigrid then
+          screen:expect({
+            grid = [[
+            ## grid 1
+              [2:----------------------------------------]|*10
+              [3:----------------------------------------]|
+            ## grid 2
+              one^                                     |
+              {1:~                                       }|*9
+            ## grid 3
+              {2:-- }{5:match 1 of 3}                         |
+            ## grid 5
+              {s:one                }|
+              {n:two                }|
+              {n:looooooooooooooong }|
+            ## grid 9
+              {n:```lua         }|
+              {n:function test()}|
+              {n:  print('foo') }|
+              {n:end            }|
+              {n:```            }|
+              {n:               }|
+            ]],
+            float_pos = {
+              [5] = { -1, 'NW', 2, 1, 0, false, 100 },
+              [9] = { 1005, 'NW', 1, 1, 19, false, 50 },
+            },
+            win_viewport = {
+              [2] = {
+                win = 1000,
+                topline = 0,
+                botline = 2,
+                curline = 0,
+                curcol = 3,
+                linecount = 1,
+                sum_scroll_delta = 0,
+              },
+              [9] = {
+                win = 1005,
+                topline = 0,
+                botline = 6,
+                curline = 0,
+                curcol = 0,
+                linecount = 5,
+                sum_scroll_delta = 0,
+              },
+            },
+            win_viewport_margins = {
+              [2] = {
+                bottom = 0,
+                left = 0,
+                right = 0,
+                top = 0,
+                win = 1000,
+              },
+              [9] = {
+                bottom = 0,
+                left = 0,
+                right = 0,
+                top = 0,
+                win = 1005,
+              },
+            },
+          })
+        else
+          screen:expect({
+            grid = [[
+              one^                                     |
+              {s:one                }{n:```lua         }{1:      }|
+              {n:two                function test()}{1:      }|
+              {n:looooooooooooooong   print('foo') }{1:      }|
+              {1:~                  }{n:end            }{1:      }|
+              {1:~                  }{n:```            }{1:      }|
+              {1:~                  }{n:               }{1:      }|
+              {1:~                                       }|*3
+              {2:-- }{5:match 1 of 3}                         |
+            ]],
+          })
+        end
       end)
     end)