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osd: add multi-monitor support
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Adds `output` attribute to control which monitor(s) display the window
switcher OSD. Supports three modes:
- "all": display on all monitors (default)
- "pointer": display on monitor with mouse cursor
- "keyboard": display on monitor with keyboard focus

The configuration structure is also refactored to nest OSD-specific
settings (show, style, output, thumbnailLabelFormat) under an <osd>
element within <windowSwitcher>, improving logical organization.
This commit is contained in:
Samet Aylak 2025-11-09 23:16:26 -05:00 • committed by GitHub
parent 79fbb611e0
commit d65caf8bfd
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GPG key ID: B5690EEEBB952194
6 changed files with 105 additions and 25 deletions
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43
src/osd/osd.c
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@ -294,6 +294,20 @@ preview_cycled_view(struct view *view)
wlr_scene_node_raise_to_top(osd_state->preview_node);
}
static void
update_osd_on_output(struct server *server, struct output *output,
struct osd_impl *osd_impl, struct wl_array *views)
{
if (!output_is_usable(output)) {
return;
}
if (!output->osd_scene.tree) {
osd_impl->create(output, views);
assert(output->osd_scene.tree);
}
osd_impl->update(output);
}
static void
update_osd(struct server *server)
{
@ -318,16 +332,29 @@ update_osd(struct server *server)
if (rc.window_switcher.show) {
/* Display the actual OSD */
struct output *output;
wl_list_for_each(output, &server->outputs, link) {
if (!output_is_usable(output)) {
continue;
switch (rc.window_switcher.output_criteria) {
case OSD_OUTPUT_ALL: {
struct output *output;
wl_list_for_each(output, &server->outputs, link) {
update_osd_on_output(server, output, osd_impl, &views);
}
break;
}
if (!output->osd_scene.tree) {
osd_impl->create(output, &views);
assert(output->osd_scene.tree);
case OSD_OUTPUT_POINTER:
update_osd_on_output(server,
output_nearest_to_cursor(server), osd_impl, &views);
break;
case OSD_OUTPUT_KEYBOARD: {
struct output *output;
if (server->active_view) {
output = server->active_view->output;
} else {
/* Fallback to pointer, if there is no active_view */
output = output_nearest_to_cursor(server);
}
update_osd_on_output(server, output, osd_impl, &views);
break;
}
osd_impl->update(output);
}
}