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tray: track SNI callbacks

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This removes any pending messages once the item is destroyed.
Furthermore, this installs SNI event calbacks asynchronously
in order to prevent sd-bus from bypassing pending messages.
This commit is contained in:
Ian Fan 2020-03-09 11:09:25 +00:00 • committed by Simon Ser
parent 68f53cd509
commit 65501f0e46
3 changed files with 47 additions and 31 deletions
Download patch file Download diff file Expand all files Collapse all files

13
include/swaybar/tray/item.h
View file

@ -14,6 +14,15 @@ struct swaybar_pixmap {
unsigned char pixels[];
};
struct swaybar_sni_slot {
struct wl_list link; // swaybar_sni::slots
struct swaybar_sni *sni;
const char *prop;
const char *type;
void *dest;
sd_bus_slot *slot;
};
struct swaybar_sni {
// icon properties
struct swaybar_tray *tray;
@ -37,9 +46,7 @@ struct swaybar_sni {
char *menu;
char *icon_theme_path; // non-standard KDE property
sd_bus_slot *new_icon_slot;
sd_bus_slot *new_attention_icon_slot;
sd_bus_slot *new_status_slot;
struct wl_list slots; // swaybar_sni_slot::link
};
struct swaybar_sni *create_sni(char *id, struct swaybar_tray *tray);

57
swaybar/tray/item.c
View file

@ -108,16 +108,9 @@ error:
return ret;
}
struct get_property_data {
struct swaybar_sni *sni;
const char *prop;
const char *type;
void *dest;
};
static int get_property_callback(sd_bus_message *msg, void *data,
sd_bus_error *error) {
struct get_property_data *d = data;
struct swaybar_sni_slot *d = data;
struct swaybar_sni *sni = d->sni;
const char *prop = d->prop;
const char *type = d->type;
@ -168,22 +161,26 @@ static int get_property_callback(sd_bus_message *msg, void *data,
set_sni_dirty(sni);
}
cleanup:
wl_list_remove(&d->link);
free(data);
return ret;
}
static void sni_get_property_async(struct swaybar_sni *sni, const char *prop,
const char *type, void *dest) {
struct get_property_data *data = malloc(sizeof(struct get_property_data));
struct swaybar_sni_slot *data = calloc(1, sizeof(struct swaybar_sni_slot));
data->sni = sni;
data->prop = prop;
data->type = type;
data->dest = dest;
int ret = sd_bus_call_method_async(sni->tray->bus, NULL, sni->service,
int ret = sd_bus_call_method_async(sni->tray->bus, &data->slot, sni->service,
sni->path, "org.freedesktop.DBus.Properties", "Get",
get_property_callback, data, "ss", sni->interface, prop);
if (ret < 0) {
if (ret >= 0) {
wl_list_insert(&sni->slots, &data->link);
} else {
sway_log(SWAY_ERROR, "%s %s: %s", sni->watcher_id, prop, strerror(-ret));
free(data);
}
}
@ -254,13 +251,17 @@ static int handle_new_status(sd_bus_message *msg, void *data, sd_bus_error *erro
return ret;
}
static void sni_match_signal(struct swaybar_sni *sni, sd_bus_slot **slot,
char *signal, sd_bus_message_handler_t callback) {
int ret = sd_bus_match_signal(sni->tray->bus, slot, sni->service, sni->path,
sni->interface, signal, callback, sni);
if (ret < 0) {
sway_log(SWAY_ERROR, "Failed to subscribe to signal %s: %s", signal,
strerror(-ret));
static void sni_match_signal_async(struct swaybar_sni *sni, char *signal,
sd_bus_message_handler_t callback) {
struct swaybar_sni_slot *slot = calloc(1, sizeof(struct swaybar_sni_slot));
int ret = sd_bus_match_signal_async(sni->tray->bus, &slot->slot,
sni->service, sni->path, sni->interface, signal, callback, NULL, sni);
if (ret >= 0) {
wl_list_insert(&sni->slots, &slot->link);
} else {
sway_log(SWAY_ERROR, "%s failed to subscribe to signal %s: %s",
sni->service, signal, strerror(-ret));
free(slot);
}
}
@ -270,6 +271,7 @@ struct swaybar_sni *create_sni(char *id, struct swaybar_tray *tray) {
return NULL;
}
sni->tray = tray;
wl_list_init(&sni->slots);
sni->watcher_id = strdup(id);
char *path_ptr = strchr(id, '/');
if (!path_ptr) {
@ -293,10 +295,9 @@ struct swaybar_sni *create_sni(char *id, struct swaybar_tray *tray) {
sni_get_property_async(sni, "ItemIsMenu", "b", &sni->item_is_menu);
sni_get_property_async(sni, "Menu", "o", &sni->menu);
sni_match_signal(sni, &sni->new_icon_slot, "NewIcon", handle_new_icon);
sni_match_signal(sni, &sni->new_attention_icon_slot, "NewAttentionIcon",
handle_new_attention_icon);
sni_match_signal(sni, &sni->new_status_slot, "NewStatus", handle_new_status);
sni_match_signal_async(sni, "NewIcon", handle_new_icon);
sni_match_signal_async(sni, "NewAttentionIcon", handle_new_attention_icon);
sni_match_signal_async(sni, "NewStatus", handle_new_status);
return sni;
}
@ -307,11 +308,6 @@ void destroy_sni(struct swaybar_sni *sni) {
}
cairo_surface_destroy(sni->icon);
sd_bus_slot_unref(sni->new_icon_slot);
sd_bus_slot_unref(sni->new_attention_icon_slot);
sd_bus_slot_unref(sni->new_status_slot);
free(sni->watcher_id);
free(sni->service);
free(sni->path);
@ -322,6 +318,13 @@ void destroy_sni(struct swaybar_sni *sni) {
list_free_items_and_destroy(sni->attention_icon_pixmap);
free(sni->menu);
free(sni->icon_theme_path);
struct swaybar_sni_slot *slot, *slot_tmp;
wl_list_for_each_safe(slot, slot_tmp, &sni->slots, link) {
sd_bus_slot_unref(slot->slot);
free(slot);
}
free(sni);
}

8
swaybar/tray/watcher.c
View file

@ -182,7 +182,13 @@ struct swaybar_watcher *create_watcher(char *protocol, sd_bus *bus) {
ret = sd_bus_request_name(bus, watcher->interface, 0);
if (ret < 0) {
sway_log(SWAY_ERROR, "Failed to acquire service name: %s", strerror(-ret));
if (-ret == EEXIST) {
sway_log(SWAY_DEBUG, "Failed to acquire service name '%s':"
"another tray is already running", watcher->interface);
} else {
sway_log(SWAY_ERROR, "Failed to acquire service name '%s': %s",
watcher->interface, strerror(-ret));
}
goto error;
}