ssd: guard against negative sizes

We always create a SSD for 0x0 window since decorations are usually
requested before a window is mapped. Thus the sizes of some buffers/rects
like edge shadows could be negative, which is asserted in wlroots 0.19.
This commit is contained in:
tokyo4j 2025-05-04 22:33:12 +09:00 committed by Hiroaki Yamamoto
parent defa1d1a98
commit 93d77801c5
4 changed files with 16 additions and 23 deletions

View file

@ -58,7 +58,7 @@ ssd_titlebar_create(struct ssd *ssd)
/* Background */
add_scene_rect(&subtree->parts, LAB_SSD_PART_TITLEBAR, parent,
width - corner_width * 2, theme->titlebar_height,
MAX(width - corner_width * 2, 0), theme->titlebar_height,
corner_width, 0, color);
add_scene_buffer(&subtree->parts, LAB_SSD_PART_TITLEBAR_CORNER_LEFT, parent,
corner_top_left, -rc.theme->border_width, -rc.theme->border_width);
@ -153,7 +153,7 @@ set_squared_corners(struct ssd *ssd, bool enable)
part = ssd_get_part(&subtree->parts, LAB_SSD_PART_TITLEBAR);
wlr_scene_node_set_position(part->node, x, 0);
wlr_scene_rect_set_size(wlr_scene_rect_from_node(part->node),
width - 2 * x, theme->titlebar_height);
MAX(width - 2 * x, 0), theme->titlebar_height);
part = ssd_get_part(&subtree->parts, LAB_SSD_PART_TITLEBAR_CORNER_LEFT);
wlr_scene_node_set_enabled(part->node, !enable);
@ -204,9 +204,10 @@ static void
update_visible_buttons(struct ssd *ssd)
{
struct view *view = ssd->view;
int width = view->current.width - (2 * view->server->theme->window_titlebar_padding_width);
int button_width = view->server->theme->window_button_width;
int button_spacing = view->server->theme->window_button_spacing;
struct theme *theme = view->server->theme;
int width = MAX(view->current.width - 2 * theme->window_titlebar_padding_width, 0);
int button_width = theme->window_button_width;
int button_spacing = theme->window_button_spacing;
int button_count_left = wl_list_length(&rc.title_buttons_left);
int button_count_right = wl_list_length(&rc.title_buttons_right);
@ -301,7 +302,7 @@ ssd_titlebar_update(struct ssd *ssd)
part = ssd_get_part(&subtree->parts, LAB_SSD_PART_TITLEBAR);
wlr_scene_rect_set_size(
wlr_scene_rect_from_node(part->node),
width - bg_offset * 2, theme->titlebar_height);
MAX(width - bg_offset * 2, 0), theme->titlebar_height);
x = theme->window_titlebar_padding_width;
wl_list_for_each(b, &rc.title_buttons_left, link) {