js: implement keyboard related api

doric-js/src/native/index.native.ts

@@ -23,4 +23,5 @@ export * from './animate'
 export * from './notification'
 export * from './statusbar'
 export * from './coordinator'
-export * from './notch'
+export * from './notch'
+export * from './keyboard'

doric-js/src/native/keyboard.ts

@@ -0,0 +1,27 @@
+/*
+ * Copyright [2019] [Doric.Pub]
+ *
+ * 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.
+ */
+import { BridgeContext } from "../runtime/global"
+export function keyboard(context: BridgeContext) {
+    return {
+        subscribe: (callback: (data: { height: number }) => void) => {
+            return context.callNative('keyboard', 'subscribe', context.function2Id(callback)) as Promise<string>
+        },
+        unsubscribe: (subscribeId: string) => {
+            context.removeFuncById(subscribeId)
+            return context.callNative('keyboard', 'unsubscribe', subscribeId)
+        }
+    }
+}