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fix(folds): avoid unnecessary loop with horizontal scrolling (#33932)

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Fix #33931

(cherry picked from commit 1d9990daac)
This commit is contained in:
zeertzjq
2025-05-10 10:36:33 +08:00
committed by github-actions[bot]
parent 8daffd0cbb
commit bdd8498ed7
2 changed files with 104 additions and 5 deletions
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11
src/nvim/drawline.c
View File

@@ -1447,7 +1447,9 @@ int win_line(win_T *wp, linenr_T lnum, int startrow, int endrow, int col_rows, b
? (startrow == 0 ? wp->w_skipcol : 0)
: wp->w_leftcol;
if (start_col > 0 && col_rows == 0) {
if (has_foldtext) {
wlv.vcol = start_col;
} else if (start_col > 0 && col_rows == 0) {
char *prev_ptr = ptr;
CharSize cs = { 0 };
@@ -1490,12 +1492,14 @@ int win_line(win_T *wp, linenr_T lnum, int startrow, int endrow, int col_rows, b
// - 'cuc' is set, or
// - 'colorcolumn' is set, or
// - 'virtualedit' is set, or
// - the visual mode is active,
// - the visual mode is active, or
// - drawing a fold
// the end of the line may be before the start of the displayed part.
if (wlv.vcol < start_col && (wp->w_p_cuc
|| wlv.color_cols
|| virtual_active(wp)
|| (VIsual_active && wp->w_buffer == curwin->w_buffer))) {
|| (VIsual_active && wp->w_buffer == curwin->w_buffer)
|| has_fold)) {
wlv.vcol = start_col;
}
@@ -1899,6 +1903,7 @@ int win_line(win_T *wp, linenr_T lnum, int startrow, int endrow, int col_rows, b
wlv.n_extra = (int)strlen(wlv.p_extra);
if (wlv.p_extra != buf_fold) {
assert(foldtext_free == NULL);
foldtext_free = wlv.p_extra;
}
wlv.sc_extra = NUL;

98
test/functional/ui/fold_spec.lua
View File

@@ -1593,6 +1593,45 @@ describe('folded lines', function()
|
]])
end
eq({ 0, 1, 2, 0, 2 }, fn.getcurpos())
api.nvim_input_mouse('left', 'press', '', multigrid and 2 or 0, 2, 4)
eq({ 0, 3, 2, 0, 2 }, fn.getcurpos())
feed('2k')
eq({ 0, 1, 2, 0, 2 }, fn.getcurpos())
api.nvim_set_option_value('foldtext', "'αβγ'", { win = 0 })
-- No crash or memory leak when scrolling beyond end of folded line #33931
fn.append('$', ('!'):rep(100))
feed('G$')
if multigrid then
screen:expect([[
## grid 1
[2:---------------------------------------------]|*7
[3:---------------------------------------------]|
## grid 2
{8: 1 } |
{8: 2 } |
{8: 3 }{5:αβγ······································}|
{8: 5 } |
{8: 6 } |
{8: 7 }!!!!!!!!!!!!!!!!!!!!^! |
{1:~ }|
## grid 3
|
]])
else
screen:expect([[
{8: 1 } |
{8: 2 } |
{8: 3 }{5:αβγ······································}|
{8: 5 } |
{8: 6 } |
{8: 7 }!!!!!!!!!!!!!!!!!!!!^! |
{1:~ }|
|
]])
end
end)
it('fold attached virtual lines are drawn and scrolled correctly #21837', function()
@@ -2624,8 +2663,6 @@ describe('folded lines', function()
screen:try_resize(30, 7)
insert(content1)
command('hi! CursorLine guibg=NONE guifg=Red gui=NONE')
command('hi F0 guibg=Red guifg=Black')
command('hi F1 guifg=White')
command([[syn match Keyword /\<sentence\>/]])
command('hi! Keyword guibg=NONE guifg=Green')
api.nvim_set_option_value('cursorline', true, {})
@@ -2734,6 +2771,63 @@ describe('folded lines', function()
{11:-- VISUAL LINE --} |
]])
end
api.nvim_set_option_value('rightleft', false, {})
api.nvim_set_option_value('wrap', false, {})
feed('<Esc>zl')
if multigrid then
screen:expect([[
## grid 1
[2:------------------------------]|*6
[3:------------------------------]|
## grid 2
{7: }his is a |
{7:- }{12:^alid English }|
{7:│+ }{21:entence}{5: composed by·······}|
{7:│+ }{5:n his cave.···············}|
{1:~ }|*2
## grid 3
|
]])
else
screen:expect([[
{7: }his is a |
{7:- }{12:^alid English }|
{7:│+ }{21:entence}{5: composed by·······}|
{7:│+ }{5:n his cave.···············}|
{1:~ }|*2
|
]])
end
fn.append(0, ('!'):rep(15))
feed('gg$zs')
if multigrid then
screen:expect([[
## grid 1
[2:------------------------------]|*6
[3:------------------------------]|
## grid 2
{7: }{12:^! }|
{7: } |
{7:- } |
{7:│+ }{5:sed by····················}|
{7:│+ }{5:··························}|
{1:~ }|
## grid 3
|
]])
else
screen:expect([[
{7: }{12:^! }|
{7: } |
{7:- } |
{7:│+ }{5:sed by····················}|
{7:│+ }{5:··························}|
{1:~ }|
|
]])
end
end)
end