Import of the watch repository from Pebble

src/fw/applib/rockyjs/api/rocky_api.h

@@ -0,0 +1,44 @@
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include "stdbool.h"
+#include "jerry-api.h"
+
+// generic callback per API, e.g. to (de-) initialize
+typedef void (*RockyAPIHandler)(void);
+
+// callback to let APIs know when a caller registers an event rocky.on(event_name, handler)
+// return true, if you are interested in the given event so that the pair will be stored
+typedef bool (*RockyEventedAPIAddHandler)(const char *event_name, jerry_value_t handler);
+
+// callback to let APIs know when a caller unregisters an event rocky.off(event_name, handler)
+typedef void (*RockyEventedAPIRemoveHandler)(const char *event_name, jerry_value_t handler);
+
+typedef struct {
+  RockyAPIHandler init;
+  RockyAPIHandler deinit;
+
+  // responds to .on('someevent', f)
+  RockyEventedAPIAddHandler add_handler;
+  // responds to .off('someevent', f);
+  RockyEventedAPIRemoveHandler remove_handler;
+} RockyGlobalAPI;
+
+
+void rocky_api_watchface_init(void);
+void rocky_api_deinit(void);