fix(ui): check for cmdline mode properly

Backport of #35202

src/nvim/drawscreen.c

@@ -272,7 +272,7 @@ void screenclear(void)
 /// to be re-emitted: avoid clearing the prompt from the message grid.
 static bool cmdline_number_prompt(void)
 {
-  return !ui_has(kUIMessages) && State == MODE_CMDLINE && get_cmdline_info()->mouse_used != NULL;
+  return !ui_has(kUIMessages) && (State & MODE_CMDLINE) && get_cmdline_info()->mouse_used != NULL;
 }
 
 /// Set dimensions of the Nvim application "screen".
@@ -374,8 +374,8 @@ void screen_resize(int width, int height)
     // - in Ex mode, don't redraw anything.
     // - Otherwise, redraw right now, and position the cursor.
     if (State == MODE_ASKMORE || State == MODE_EXTERNCMD || exmode_active
-        || (State == MODE_CMDLINE && get_cmdline_info()->one_key)) {
-      if (State == MODE_CMDLINE) {
+        || ((State & MODE_CMDLINE) && get_cmdline_info()->one_key)) {
+      if (State & MODE_CMDLINE) {
         update_screen();
       }
       if (msg_grid.chars) {

src/nvim/message.c

@@ -3062,7 +3062,7 @@ void repeat_message(void)
   if (State == MODE_ASKMORE) {
     msg_moremsg(true);          // display --more-- message again
     msg_row = Rows - 1;
-  } else if (State == MODE_CMDLINE && confirm_msg != NULL) {
+  } else if ((State & MODE_CMDLINE) && confirm_msg != NULL) {
     display_confirm_msg();      // display ":confirm" message again
     msg_row = Rows - 1;
   } else if (State == MODE_EXTERNCMD) {

src/nvim/state.c

@@ -185,11 +185,11 @@ void get_mode(char *buf)
   int i = 0;
 
   if (State == MODE_HITRETURN || State == MODE_ASKMORE || State == MODE_SETWSIZE
-      || (State == MODE_CMDLINE && get_cmdline_info()->one_key)) {
+      || ((State & MODE_CMDLINE) && get_cmdline_info()->one_key)) {
     buf[i++] = 'r';
     if (State == MODE_ASKMORE) {
       buf[i++] = 'm';
-    } else if (State == MODE_CMDLINE) {
+    } else if (State & MODE_CMDLINE) {
       buf[i++] = '?';
     }
   } else if (State == MODE_EXTERNCMD) {

src/nvim/ui.c

@@ -541,7 +541,7 @@ void ui_flush(void)
 
   cmdline_ui_flush();
 
-  if (State != MODE_CMDLINE && curwin->w_floating && curwin->w_config.hide) {
+  if (!(State & MODE_CMDLINE) && curwin->w_floating && curwin->w_config.hide) {
     if (!was_busy) {
       ui_call_busy_start();
       was_busy = true;

test/functional/ui/cmdline_spec.lua

@@ -1141,6 +1141,16 @@ describe('cmdline redraw', function()
     ]])
     command('redraw')
     screen:expect_unchanged()
+
+    command('set keymap=dvorak')
+    feed('<C-^>')
+    command('redraw')
+    screen:expect_unchanged()
+
+    feed('<C-^>')
+    command('set keymap&')
+    command('redraw')
+    screen:expect_unchanged()
   end)
 
   it('substitute confirm prompt does not scroll', function()

test/functional/ui/float_spec.lua

@@ -9587,6 +9587,15 @@ describe('float window', function()
           ]]
         })
       end
+
+      command('set keymap=dvorak')
+      feed('<C-^>')
+      screen:expect_unchanged()
+
+      feed('<C-^>')
+      command('set keymap&')
+      screen:expect_unchanged()
+
       feed('<ESC>')
 
       -- Show cursor after switching to a normal window (hide=false).

test/functional/ui/screen.lua

@@ -365,7 +365,7 @@ for _, v in ipairs(ext_keys) do
   expect_keys[v] = true
 end
 
---- @class test.function.ui.screen.Expect
+--- @class test.functional.ui.screen.Expect
 ---
 --- Expected screen state (string). Each line represents a screen
 --- row. Last character of each row (typically "|") is stripped.
@@ -460,7 +460,7 @@ end
 --- or keyword args (supports more options):
 ---    screen:expect({ grid=[[...]], cmdline={...}, condition=function() ... end })
 ---
---- @param expected string|function|test.function.ui.screen.Expect
+--- @param expected string|function|test.functional.ui.screen.Expect
 --- @param attr_ids? table<integer,table<string,any>>
 function Screen:expect(expected, attr_ids, ...)
   --- @type string, fun()