fix(highlight): Normal-linked groups shouldn't override CursorLine #35026

Problem: CursorLine doesn't consistently highlight text using groups
linked to Normal (e.g., in quickfix, passwd files), while it works
for direct Normal usage.

Solution: Don't let normal background from linked groups override
explicit non-normal backgrounds during attribute combination.
This commit is contained in:
glepnir
2025-12-10 12:01:27 +08:00
committed by GitHub
parent df9e4a037a
commit 625c59fe5f
2 changed files with 36 additions and 1 deletions

View File

@@ -2924,7 +2924,25 @@ int win_line(win_T *wp, linenr_T lnum, int startrow, int endrow, int col_rows, b
if (wlv.filler_todo <= 0) {
// Apply lowest-priority line attr now, so everything can override it.
wlv.char_attr = hl_combine_attr(wlv.line_attr_lowprio, wlv.char_attr);
int low = wlv.line_attr_lowprio;
int high = wlv.char_attr;
if (wlv.line_attr_lowprio != 0) {
HlAttrs line_ae = syn_attr2entry(wlv.line_attr_lowprio);
HlAttrs char_ae = syn_attr2entry(wlv.char_attr);
// If line has background (CursorLine) and char's background equals Normal's background,
// reverse the combination order to let CursorLine override normal_bg.
bool has_line_bg = line_ae.rgb_bg_color >= 0 || line_ae.cterm_bg_color > 0;
bool char_is_normal_bg = ui_rgb_attached()
? (char_ae.rgb_bg_color == normal_bg)
: (char_ae.cterm_bg_color == cterm_normal_bg_color);
if (has_line_bg && char_is_normal_bg) {
low = wlv.char_attr;
high = wlv.line_attr_lowprio;
}
}
wlv.char_attr = hl_combine_attr(low, high);
}
if (wlv.filler_todo <= 0) {

View File

@@ -1378,6 +1378,23 @@ describe('CursorLine and CursorLineNr highlights', function()
|
]])
end)
it('CursorLine overlays hl group linked to Normal', function()
local screen = Screen.new(50, 12)
screen:add_extra_attr_ids({
[101] = { background = Screen.colors.Grey90, foreground = Screen.colors.Gray100 },
})
command('hi Normal guibg=black guifg=white')
command('hi def link Test Normal')
feed('ifoo bar<ESC>')
feed(':call matchadd("Test", "bar")<cr>')
command('set cursorline')
screen:expect([[
{21:foo }{101:ba^r}{21: }|
{1:~ }|*10
:call matchadd("Test", "bar") |
]])
end)
end)
describe('CursorColumn highlight', function()