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Gracefully deal with outputs being removed

This commit is contained in:
Drew DeVault 2018-03-20 21:41:18 -04:00
parent f444a0d14c
commit 8c98c18880
2 changed files with 31 additions and 12 deletions
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1
include/rootston/layers.h
View File

@ -14,6 +14,7 @@ struct roots_layer_surface {
struct wl_listener map;
struct wl_listener unmap;
struct wl_listener surface_commit;
struct wl_listener output_destroy;
bool configured;
struct wlr_box geo;

42
rootston/layer_shell.c
View File

@ -114,13 +114,34 @@ static void arrange_layers(struct wlr_output *_output) {
}
}
static void handle_output_destroy(struct wl_listener *listener, void *data) {
struct roots_layer_surface *layer =
wl_container_of(listener, layer, output_destroy);
layer->layer_surface->output = NULL;
wl_resource_destroy(layer->layer_surface->resource);
}
static void handle_surface_commit(struct wl_listener *listener, void *data) {
struct roots_layer_surface *layer =
wl_container_of(listener, layer, surface_commit);
struct wlr_layer_surface *layer_surface = layer->layer_surface;
struct wlr_output *wlr_output = layer_surface->output;
if (wlr_output != NULL) {
struct roots_output *output = wlr_output->data;
output_damage_from_local_surface(output, layer_surface->surface,
layer->geo.x, layer->geo.y, 0);
}
}
static void unmap(struct wlr_layer_surface *layer_surface) {
struct roots_layer_surface *layer = layer_surface->data;
wl_list_remove(&layer->link);
struct wlr_output *wlr_output = layer_surface->output;
struct roots_output *output = wlr_output->data;
wlr_output_damage_add_box(output->damage, &layer->geo);
if (wlr_output != NULL) {
struct roots_output *output = wlr_output->data;
wlr_output_damage_add_box(output->damage, &layer->geo);
}
}
static void handle_destroy(struct wl_listener *listener, void *data) {
@ -129,19 +150,10 @@ static void handle_destroy(struct wl_listener *listener, void *data) {
if (layer->layer_surface->mapped) {
unmap(layer->layer_surface);
}
wl_list_remove(&layer->output_destroy.link);
free(layer);
}
static void handle_surface_commit(struct wl_listener *listener, void *data) {
struct roots_layer_surface *layer =
wl_container_of(listener, layer, surface_commit);
struct wlr_layer_surface *layer_surface = layer->layer_surface;
struct wlr_output *wlr_output = layer_surface->output;
struct roots_output *output = wlr_output->data;
output_damage_from_local_surface(output, layer_surface->surface,
layer->geo.x, layer->geo.y, 0);
}
static void handle_map(struct wl_listener *listener, void *data) {
struct wlr_layer_surface *layer_surface = data;
struct roots_layer_surface *layer = layer_surface->data;
@ -174,9 +186,15 @@ void handle_layer_shell_surface(struct wl_listener *listener, void *data) {
if (!roots_surface) {
return;
}
roots_surface->surface_commit.notify = handle_surface_commit;
wl_signal_add(&layer_surface->surface->events.commit,
&roots_surface->surface_commit);
roots_surface->output_destroy.notify = handle_output_destroy;
wl_signal_add(&layer_surface->output->events.destroy,
&roots_surface->output_destroy);
roots_surface->destroy.notify = handle_destroy;
wl_signal_add(&layer_surface->events.destroy, &roots_surface->destroy);
roots_surface->map.notify = handle_map;