feat(pum): pretend 'mousemoveevent' is set when showing right-click menu

src/nvim/popupmenu.c

@@ -1042,6 +1042,10 @@ void pum_show_popupmenu(vimmenu_T *menu)
   pum_scrollbar = 0;
   pum_height = pum_size;
   pum_position_at_mouse(20);
+  if (!p_mousemev) {
+    // Pretend 'mousemoveevent' is set.
+    ui_call_option_set(STATIC_CSTR_AS_STRING("mousemoveevent"), BOOLEAN_OBJ(true));
+  }
 
   pum_selected = -1;
   pum_first = 0;
@@ -1102,6 +1106,9 @@ void pum_show_popupmenu(vimmenu_T *menu)
 
   xfree(array);
   pum_undisplay(true);
+  if (!p_mousemev) {
+    ui_call_option_set(STATIC_CSTR_AS_STRING("mousemoveevent"), BOOLEAN_OBJ(false));
+  }
 }
 
 void pum_make_popup(const char *path_name, int use_mouse_pos)

test/functional/terminal/tui_spec.lua

@@ -21,6 +21,7 @@ local nvim_set = helpers.nvim_set
 local ok = helpers.ok
 local read_file = helpers.read_file
 local funcs = helpers.funcs
+local meths = helpers.meths
 
 if helpers.pending_win32(pending) then return end
 
@@ -666,6 +667,57 @@ describe('TUI', function()
     ]], attrs)
   end)
 
+  it('mouse events work with right-click menu', function()
+    child_session:request('nvim_command', [[
+      call setline(1, 'popup menu test')
+      set mouse=a mousemodel=popup
+
+      aunmenu PopUp
+      menu PopUp.foo :let g:menustr = 'foo'<CR>
+      menu PopUp.bar :let g:menustr = 'bar'<CR>
+      menu PopUp.baz :let g:menustr = 'baz'<CR>
+      highlight Pmenu ctermbg=NONE ctermfg=NONE cterm=underline,reverse
+      highlight PmenuSel ctermbg=NONE ctermfg=NONE cterm=underline,reverse,bold
+    ]])
+    local attrs = screen:get_default_attr_ids()
+    attrs[11] = {underline = true, reverse = true}
+    attrs[12] = {underline = true, reverse = true, bold = true}
+    meths.input_mouse('right', 'press', '', 0, 0, 4)
+    screen:expect([[
+      {1:p}opup menu test                                   |
+      {4:~  }{11: foo }{4:                                          }|
+      {4:~  }{11: bar }{4:                                          }|
+      {4:~  }{11: baz }{4:                                          }|
+      {5:[No Name] [+]                                     }|
+                                                        |
+      {3:-- TERMINAL --}                                    |
+    ]], attrs)
+    meths.input_mouse('right', 'release', '', 0, 0, 4)
+    screen:expect_unchanged()
+    meths.input_mouse('move', '', '', 0, 3, 6)
+    screen:expect([[
+      {1:p}opup menu test                                   |
+      {4:~  }{11: foo }{4:                                          }|
+      {4:~  }{11: bar }{4:                                          }|
+      {4:~  }{12: baz }{4:                                          }|
+      {5:[No Name] [+]                                     }|
+                                                        |
+      {3:-- TERMINAL --}                                    |
+    ]], attrs)
+    meths.input_mouse('left', 'press', '', 0, 2, 6)
+    screen:expect([[
+      {1:p}opup menu test                                   |
+      {4:~                                                 }|
+      {4:~                                                 }|
+      {4:~                                                 }|
+      {5:[No Name] [+]                                     }|
+      :let g:menustr = 'bar'                            |
+      {3:-- TERMINAL --}                                    |
+    ]], attrs)
+    meths.input_mouse('left', 'release', '', 0, 2, 6)
+    screen:expect_unchanged()
+  end)
+
   it('paste: Insert mode', function()
     -- "bracketed paste"
     feed_data('i""\027i\027[200~')

test/functional/ui/popupmenu_spec.lua

@@ -2839,6 +2839,7 @@ describe('builtin popupmenu', function()
       :let g:menustr = 'foo'          |
     ]])
     eq('foo', meths.get_var('menustr'))
+    eq(false, screen.options.mousemoveevent)
     feed('<RightMouse><4,0>')
     screen:expect([[
       ^popup menu test                 |
@@ -2848,6 +2849,7 @@ describe('builtin popupmenu', function()
       {1:~                               }|
       :let g:menustr = 'foo'          |
     ]])
+    eq(true, screen.options.mousemoveevent)
     feed('<MouseMove><6,3>')
     screen:expect([[
       ^popup menu test                 |
@@ -2857,6 +2859,7 @@ describe('builtin popupmenu', function()
       {1:~                               }|
       :let g:menustr = 'foo'          |
     ]])
+    eq(true, screen.options.mousemoveevent)
     feed('<LeftMouse><6,2>')
     screen:expect([[
       ^popup menu test                 |
@@ -2866,6 +2869,7 @@ describe('builtin popupmenu', function()
       {1:~                               }|
       :let g:menustr = 'bar'          |
     ]])
+    eq(false, screen.options.mousemoveevent)
     eq('bar', meths.get_var('menustr'))
   end)
 end)
@@ -3075,6 +3079,7 @@ describe('builtin popupmenu with ui/ext_multigrid', function()
       :let g:menustr = 'foo'          |
     ]]})
     eq('foo', meths.get_var('menustr'))
+    eq(false, screen.options.mousemoveevent)
     meths.input_mouse('right', 'press', '', 2, 0, 4)
     screen:expect({grid=[[
     ## grid 1
@@ -3097,6 +3102,7 @@ describe('builtin popupmenu with ui/ext_multigrid', function()
       {n: bar }|
       {n: baz }|
     ]], float_pos={[4] = {{id = -1}, 'NW', 2, 1, 3, false, 100}}})
+    eq(true, screen.options.mousemoveevent)
     meths.input_mouse('move', '', '', 2, 3, 6)
     screen:expect({grid=[[
     ## grid 1
@@ -3119,6 +3125,7 @@ describe('builtin popupmenu with ui/ext_multigrid', function()
       {n: bar }|
       {s: baz }|
     ]], float_pos={[4] = {{id = -1}, 'NW', 2, 1, 3, false, 100}}})
+    eq(true, screen.options.mousemoveevent)
     meths.input_mouse('left', 'press', '', 2, 2, 6)
     screen:expect({grid=[[
     ## grid 1
@@ -3137,6 +3144,7 @@ describe('builtin popupmenu with ui/ext_multigrid', function()
     ## grid 3
       :let g:menustr = 'bar'          |
     ]]})
+    eq(false, screen.options.mousemoveevent)
     eq('bar', meths.get_var('menustr'))
   end)
 end)