ui: make 'mouse' handling in external UI more consistent

before the behaviour of 'mouse' was inconsistent in external UI,
as some remapping logic would check has_mouse() and others don't
(no difference in TUI or vim classic). With this change, the behaviour
is consistently up to the UI decide (see ui.txt edit)

Behaviour of tui.c is unaffected by this change.

1 files changed, 8 insertions, 5 deletions

diff --git a/test/functional/ui/screen.lua b/test/functional/ui/screen.lua
index 8fa9fcc42f..fcf6926433 100644
--- a/test/functional/ui/screen.lua
+++ b/test/functional/ui/screen.lua
@@ -170,7 +170,7 @@ function Screen.new(width, height)
     ruler = {},
     hl_groups = {},
     _default_attr_ids = nil,
-    _mouse_enabled = true,
+    mouse_enabled = true,
     _attrs = {},
     _hl_info = {[0]={}},
     _attr_table = {[0]={{},{}}},
@@ -318,7 +318,7 @@ function Screen:expect(expected, attr_ids, ...)
   assert(next({...}) == nil, "invalid args to expect()")
   if type(expected) == "table" then
     assert(not (attr_ids ~= nil))
-    local is_key = {grid=true, attr_ids=true, condition=true,
+    local is_key = {grid=true, attr_ids=true, condition=true, mouse_enabled=true,
                     any=true, mode=true, unchanged=true, intermediate=true,
                     reset=true, timeout=true, request_cb=true, hl_groups=true}
     for _, v in ipairs(ext_keys) do
@@ -422,12 +422,15 @@ screen:redraw_debug() to show all intermediate screen states.  ]])
     if expected.mode ~= nil then
       extstate.mode = self.mode
     end
+    if expected.mouse_enabled ~= nil then
+      extstate.mouse_enabled = self.mouse_enabled
+    end
     if expected.win_viewport == nil then
       extstate.win_viewport = nil
     end
 
     -- Convert assertion errors into invalid screen state descriptions.
-    for _, k in ipairs(concat_tables(ext_keys, {'mode'})) do
+    for _, k in ipairs(concat_tables(ext_keys, {'mode', 'mouse_enabled'})) do
       -- Empty states are considered the default and need not be mentioned.
       if (not (expected[k] == nil and isempty(extstate[k]))) then
         local status, res = pcall(eq, expected[k], extstate[k], k)
@@ -799,11 +802,11 @@ function Screen:_handle_busy_stop()
 end
 
 function Screen:_handle_mouse_on()
-  self._mouse_enabled = true
+  self.mouse_enabled = true
 end
 
 function Screen:_handle_mouse_off()
-  self._mouse_enabled = false
+  self.mouse_enabled = false
 end
 
 function Screen:_handle_mode_change(mode, idx)