swaybar: show hidden bar on key event

Since wayland does not currently allow swaybar to create global
keybinds, this is handled within sway and sent to the bar using a custom
event, so as not to pollute existing events, called bar_state_update.

1 files changed, 18 insertions, 0 deletions

diff --git a/sway/ipc-server.c b/sway/ipc-server.c
index 2d915502..63c95503 100644
--- a/sway/ipc-server.c
+++ b/sway/ipc-server.c
@@ -349,6 +349,22 @@ void ipc_event_barconfig_update(struct bar_config *bar) {
         json_object_put(json);
 }
 
+void ipc_event_bar_state_update(struct bar_config *bar) {
+        if (!ipc_has_event_listeners(IPC_EVENT_BAR_STATE_UPDATE)) {
+                return;
+        }
+        wlr_log(WLR_DEBUG, "Sending bar_state_update event");
+
+        json_object *json = json_object_new_object();
+        json_object_object_add(json, "id", json_object_new_string(bar->id));
+        json_object_object_add(json, "visible_by_modifier",
+                        json_object_new_boolean(bar->visible_by_modifier));
+
+        const char *json_string = json_object_to_json_string(json);
+        ipc_send_event(json_string, IPC_EVENT_BAR_STATE_UPDATE);
+        json_object_put(json);
+}
+
 void ipc_event_mode(const char *mode, bool pango) {
         if (!ipc_has_event_listeners(IPC_EVENT_MODE)) {
                 return;
@@ -651,6 +667,8 @@ void ipc_client_handle_command(struct ipc_client *client) {
                                 client->subscribed_events |= event_mask(IPC_EVENT_WORKSPACE);
                         } else if (strcmp(event_type, "barconfig_update") == 0) {
                                 client->subscribed_events |= event_mask(IPC_EVENT_BARCONFIG_UPDATE);
+                        } else if (strcmp(event_type, "bar_state_update") == 0) {
+                                client->subscribed_events |= event_mask(IPC_EVENT_BAR_STATE_UPDATE);
                         } else if (strcmp(event_type, "mode") == 0) {
                                 client->subscribed_events |= event_mask(IPC_EVENT_MODE);
                         } else if (strcmp(event_type, "shutdown") == 0) {