Fix tabbed/stacking container height regression

Commit c2d6aff added a bounds check on `height - title_bar_height`,
repurposing the local variable `height` in an attempt to DRY out the
expression.

However, because re-assignment occurs inside the loop body, its result
would leak across loop iterations, compounding its effect and leading
to the artifact reported in issue #8625, where each child except the
first in a tabbed container would acquire a visible waterline.

Introduce a second variable and reset it in each loop iteration to get
rid of the waterline.

Fixes #8625.
This commit is contained in:
Claudia 2025-03-26 19:34:44 +01:00 committed by Kenny Levinsen
parent ab455bbada
commit a25645a5a6

View file

@ -312,9 +312,9 @@ static void arrange_children(enum sway_container_layout layout, list_t *children
wlr_scene_node_set_position(&child->scene_tree->node, 0, title_bar_height);
wlr_scene_node_reparent(&child->scene_tree->node, content);
height -= title_bar_height;
if (activated && width > 0 && height > 0) {
arrange_container(child, width, height, title_bar_height == 0, 0);
int net_height = height - title_bar_height;
if (activated && width > 0 && net_height > 0) {
arrange_container(child, width, net_height, title_bar_height == 0, 0);
} else {
disable_container(child);
}
@ -341,9 +341,9 @@ static void arrange_children(enum sway_container_layout layout, list_t *children
wlr_scene_node_set_position(&child->scene_tree->node, 0, title_height);
wlr_scene_node_reparent(&child->scene_tree->node, content);
height -= title_bar_height;
if (activated && width > 0 && height > 0) {
arrange_container(child, width, height, title_bar_height == 0, 0);
int net_height = height - title_bar_height;
if (activated && width > 0 && net_height > 0) {
arrange_container(child, width, net_height, title_bar_height == 0, 0);
} else {
disable_container(child);
}