fix(mouse): click on global statusline with splits (#19390)

2 files changed, 36 insertions, 1 deletions

diff --git a/src/nvim/normal.c b/src/nvim/normal.c
index b675abfb7d..a842bb20a9 100644
--- a/src/nvim/normal.c
+++ b/src/nvim/normal.c
@@ -1908,6 +1908,13 @@ bool do_mouse(oparg_T *oap, int c, int dir, long count, bool fixindent)
     StlClickDefinition *click_defs = in_status_line ? wp->w_status_click_defs
                                                     : wp->w_winbar_click_defs;
 
+    if (in_status_line && global_stl_height() > 0) {
+      // global statusline is displayed for the current window,
+      // and spans the whole screen.
+      click_defs = curwin->w_status_click_defs;
+      click_col = mouse_col;
+    }
+
     if (click_defs != NULL) {
       switch (click_defs[click_col].type) {
       case kStlClickDisabled:
diff --git a/test/functional/ui/statusline_spec.lua b/test/functional/ui/statusline_spec.lua
index 1e1066d48a..2ffd3149a6 100644
--- a/test/functional/ui/statusline_spec.lua
+++ b/test/functional/ui/statusline_spec.lua
@@ -98,13 +98,41 @@ describe('statusline clicks', function()
     eq('0 2 r', eval("g:testvar"))
   end)
 
-  it("click works with modifiers #18994", function()
+  it("works with modifiers #18994", function()
     meths.set_option('statusline', 'Not clicky stuff %0@MyClickFunc@Clicky stuff%T')
     meths.input_mouse('right', 'press', 's', 0, 6, 17)
     eq('0 1 r s', eval("g:testvar"))
     meths.input_mouse('left', 'press', 's', 0, 6, 17)
     eq('0 1 l s', eval("g:testvar"))
   end)
+
+  it("works for global statusline with vertical splits #19186", function()
+    command('set laststatus=3')
+    meths.set_option('statusline', '%0@MyClickFunc@Clicky stuff%T %= %0@MyClickFunc@Clicky stuff%T')
+    command('vsplit')
+    screen:expect([[
+      ^                    │                   |
+      ~                   │~                  |
+      ~                   │~                  |
+      ~                   │~                  |
+      ~                   │~                  |
+      ~                   │~                  |
+      Clicky stuff                Clicky stuff|
+                                              |
+    ]])
+
+    -- clickable area on the right
+    meths.input_mouse('left', 'press', '', 0, 6, 35)
+    eq('0 1 l', eval("g:testvar"))
+    meths.input_mouse('right', 'press', '', 0, 6, 35)
+    eq('0 1 r', eval("g:testvar"))
+
+    -- clickable area on the left
+    meths.input_mouse('left', 'press', '', 0, 6, 5)
+    eq('0 1 l', eval("g:testvar"))
+    meths.input_mouse('right', 'press', '', 0, 6, 5)
+    eq('0 1 r', eval("g:testvar"))
+  end)
 end)
 
 describe('global statusline', function()