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Give hovered scrollbar precedence over window borders to prevent flickering

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Agent-Logs-Url: https://github.com/kovidgoyal/kitty/sessions/260f17ab-b8d3-4581-ae88-de6f6c011637

Co-authored-by: kovidgoyal <1308621+kovidgoyal@users.noreply.github.com>
This commit is contained in:
copilot-swe-agent[bot]
2026-03-27 05:48:50 +00:00
committed by GitHub
parent 24414f6189
commit df79b8247f
1 changed files with 23 additions and 6 deletions
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29
kitty/mouse.c
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@@ -986,15 +986,32 @@ mouse_region(bool detect_borders, bool detect_title_bar) {
window_id = closest_horiz->border_type < 0 ? -closest_horiz->border_type : closest_horiz->border_type;
}
if (ans.window_border) {
if (window_id) {
for (unsigned int i = 0; i < t->num_windows; i++)
if (t->windows[i].id == window_id) {
ans.window = t->windows + i;
ans.window_idx = i;
// If a hovered scrollbar overlaps this border region, the
// scrollbar takes precedence to avoid flickering when the
// expanded hover-width scrollbar straddles the border.
bool scrollbar_takes_precedence = false;
if (OPT(scrollbar_interactive)) {
for (unsigned int i = 0; i < t->num_windows; i++) {
Window *win = t->windows + i;
if (!win->visible || !win->render_data.screen) continue;
if (win->scrollbar.is_hovering && get_scrollbar_hit_type(win, w->mouse_x, w->mouse_y) != SCROLLBAR_HIT_NONE) {
scrollbar_takes_precedence = true;
break;
}
}
}
return ans;
if (!scrollbar_takes_precedence) {
if (window_id) {
for (unsigned int i = 0; i < t->num_windows; i++)
if (t->windows[i].id == window_id) {
ans.window = t->windows + i;
ans.window_idx = i;
break;
}
}
return ans;
}
ans.window_border = 0;
}
}
for (unsigned int i = 0; i < t->num_windows; i++) {