Merge pull request #27867 from bfredl/intro_multigrid

fix(ui): startup intro message should be visible with ext_multigrid

src/nvim/version.c

@@ -32,6 +32,7 @@
 #include "nvim/option_vars.h"
 #include "nvim/os/os.h"
 #include "nvim/strings.h"
+#include "nvim/ui.h"
 #include "nvim/version.h"
 
 // for ":version", ":intro", and "nvim --version"
@@ -2724,7 +2725,7 @@ bool may_show_intro(void)
 /// Or with the ":intro" command (for Sven :-).
 ///
 /// @param colon true for ":intro"
-void intro_message(int colon)
+void intro_message(bool colon)
 {
   static char *(lines[]) = {
     N_(NVIM_VERSION_LONG),
@@ -2801,7 +2802,7 @@ void intro_message(int colon)
       }
 
       if (*mesg != NUL) {
-        do_intro_line(row, mesg, 0);
+        do_intro_line(row, mesg, colon);
       }
       row++;
 
@@ -2812,7 +2813,7 @@ void intro_message(int colon)
   }
 }
 
-static void do_intro_line(int row, char *mesg, int attr)
+static void do_intro_line(int row, char *mesg, bool colon)
 {
   int l;
 
@@ -2825,7 +2826,12 @@ static void do_intro_line(int row, char *mesg, int attr)
     col = 0;
   }
 
-  grid_line_start(&default_grid, row);
+  ScreenGrid *grid = &default_grid;
+  if (!colon && ui_has(kUIMultigrid)) {
+    grid = &firstwin->w_grid;
+  }
+
+  grid_line_start(grid, row);
   // Split up in parts to highlight <> items differently.
   for (char *p = mesg; *p != NUL; p += l) {
     for (l = 0;
@@ -2834,7 +2840,7 @@ static void do_intro_line(int row, char *mesg, int attr)
       l += utfc_ptr2len(p + l) - 1;
     }
     assert(row <= INT_MAX && col <= INT_MAX);
-    col += grid_line_puts(col, p, l, *p == '<' ? HL_ATTR(HLF_8) : attr);
+    col += grid_line_puts(col, p, l, *p == '<' ? HL_ATTR(HLF_8) : 0);
   }
   grid_line_flush();
 }

test/functional/ui/messages_spec.lua

@@ -1751,6 +1751,82 @@ describe('ui/ext_messages', function()
   end)
 end)
 
+it('ui/ext_multigrid supports intro screen', function()
+  clear { args_rm = { '--headless' }, args = { '--cmd', 'set shortmess-=I' } }
+  local screen = Screen.new(80, 24)
+  screen:attach({ rgb = true, ext_multigrid = true })
+  screen:set_default_attr_ids {
+    [1] = { bold = true, foreground = Screen.colors.Blue1 },
+    [2] = { foreground = Screen.colors.Grey100, background = Screen.colors.Red },
+    [3] = { bold = true },
+    [4] = { bold = true, foreground = Screen.colors.SeaGreen4 },
+    [5] = { foreground = Screen.colors.Blue1 },
+  }
+
+  screen:expect {
+    grid = [[
+    ## grid 1
+      [2:--------------------------------------------------------------------------------]|*23
+      [3:--------------------------------------------------------------------------------]|
+    ## grid 2
+      ^                                                                                |
+      {1:~                                                                               }|*4
+      {MATCH:.*}|
+      {1:~                                                                               }|
+      {1:~                 }Nvim is open source and freely distributable{1:                  }|
+      {1:~                           }https://neovim.io/#chat{1:                             }|
+      {1:~                                                                               }|
+      {1:~                }type  :help nvim{5:<Enter>}       if you are new! {1:                 }|
+      {1:~                }type  :checkhealth{5:<Enter>}     to optimize Nvim{1:                 }|
+      {1:~                }type  :q{5:<Enter>}               to exit         {1:                 }|
+      {1:~                }type  :help{5:<Enter>}            for help        {1:                 }|
+      {1:~                                                                               }|
+      {1:~{MATCH: +}}type  :help news{5:<Enter>} to see changes in v{MATCH:%d+%.%d+}{1:{MATCH: +}}|
+      {1:~                                                                               }|
+      {MATCH:.*}|*2
+      {1:~                                                                               }|*4
+    ## grid 3
+                                                                                      |
+    ]],
+    win_viewport = {
+      [2] = {
+        win = 1000,
+        topline = 0,
+        botline = 2,
+        curline = 0,
+        curcol = 0,
+        linecount = 1,
+        sum_scroll_delta = 0,
+      },
+    },
+  }
+
+  feed 'ix'
+  screen:expect {
+    grid = [[
+    ## grid 1
+      [2:--------------------------------------------------------------------------------]|*23
+      [3:--------------------------------------------------------------------------------]|
+    ## grid 2
+      x^                                                                               |
+      {1:~                                                                               }|*22
+    ## grid 3
+      {3:-- INSERT --}                                                                    |
+    ]],
+    win_viewport = {
+      [2] = {
+        win = 1000,
+        topline = 0,
+        botline = 2,
+        curline = 0,
+        curcol = 1,
+        linecount = 1,
+        sum_scroll_delta = 0,
+      },
+    },
+  }
+end)
+
 describe('ui/msg_puts_printf', function()
   it('output multibyte characters correctly', function()
     local screen