output: Add output_update_usable_area/all_usable_areas()

Move the desktop_arrange_all_views() call outside layers_arrange() into
a new function, output_update_usable_area().  The new function currently
does exactly what layers_arrange() used to, but will be expanded in a
later commit.

Add output_update_all_usable_areas(), which is the same as calling
output_update_usable_area() for each output, but only calls
desktop_arrange_all_views() once.

Rebased and slightly modified by @Consolatis
This commit is contained in:
John Lindgren 2022-11-16 12:43:59 -05:00 committed by Consolatis
parent af56b68041
commit ed31381eb8
4 changed files with 54 additions and 22 deletions

View file

@ -240,8 +240,7 @@ output_init(struct server *server)
static void
output_update_for_layout_change(struct server *server)
{
/* Adjust window positions/sizes */
desktop_arrange_all_views(server);
output_update_all_usable_areas(server, /*enforce_view_arrange*/ true);
/*
* "Move" each wlr_output_cursor (in per-output coordinates) to
@ -395,11 +394,6 @@ do_output_layout_change(struct server *server)
wlr_log(WLR_ERROR,
"wlr_output_manager_v1_set_configuration()");
}
struct output *output;
wl_list_for_each(output, &server->outputs, link) {
layers_arrange(output);
}
output_update_for_layout_change(server);
}
}
@ -438,6 +432,38 @@ output_from_wlr_output(struct server *server, struct wlr_output *wlr_output)
return NULL;
}
/* returns true if usable area changed */
static bool
update_usable_area(struct output *output)
{
struct wlr_box old = output->usable_area;
layers_arrange(output);
return !wlr_box_equal(&old, &output->usable_area);
}
void
output_update_usable_area(struct output *output)
{
if (update_usable_area(output)) {
desktop_arrange_all_views(output->server);
}
}
void
output_update_all_usable_areas(struct server *server, bool enforce_view_arrange)
{
bool usable_area_changed = false;
struct output *output;
wl_list_for_each(output, &server->outputs, link) {
usable_area_changed |= update_usable_area(output);
}
if (usable_area_changed || enforce_view_arrange) {
desktop_arrange_all_views(server);
}
}
struct wlr_box
output_usable_area_in_layout_coords(struct output *output)
{