Signed-off-by: ma-shaoyin <mashaoyin1@huawei.com>

Changes to be committed:

api/@ohos.inputmethodextensionability.d.ts

@@ -0,0 +1,111 @@
+/*
+ * Copyright (c) 2022 Huawei Device Co., Ltd.
+ * 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 rpc from "./@ohos.rpc";
+import Want from './@ohos.application.Want';
+import ExtensionAbility from './@ohos.application.ExtensionAbility';
+import InputMethodExtensionContext from "./@ohos.inputmethodextensioncontext";
+
+/**
+ * The extension ability class of input method.
+ *
+ * @since 9
+ * @syscap SystemCapability.MiscServices.InputMethodFramework
+ * @StageModelOnly
+ */
+export default class InputMethodExtensionAbility extends ExtensionAbility {
+    /**
+     * Indicates input method extension ability context.
+     * @since 9
+     * @syscap SystemCapability.MiscServices.InputMethodFramework
+     * @StageModelOnly
+     */
+    context: InputMethodExtensionContext;
+
+    /**
+     * Called back when a input method extension is started for initialization.
+     *
+     * @since 9
+     * @syscap SystemCapability.MiscServices.InputMethodFramework
+     * @param want Indicates the want of created service extension.
+     * @return -
+     * @throws {BusinessError} 401 - parameter error.
+     * @StageModelOnly
+     */
+    onCreate(want: Want): void;
+
+    /**
+     * Called back before a input method extension is destroyed.
+     *
+     * @since 9
+     * @syscap SystemCapability.MiscServices.InputMethodFramework
+     * @return -
+     * @throws {BusinessError} 401 - parameter error.
+     * @StageModelOnly
+     */
+    onDestroy(): void;
+
+    /**
+     * Called back when a input method extension is started.
+     *
+     * @since 9
+     * @syscap SystemCapability.MiscServices.InputMethodFramework
+     * @param want Indicates the want of service extension to start.
+     * @param startId Indicates the number of times the service extension has been started. The {@code startId} is
+     *     incremented by 1 every time the service extension is started. For example, if the service extension
+     *     has been started for six times.
+     * @return -
+     * @throws {BusinessError} 401 - parameter error.
+     * @StageModelOnly
+     */
+    onRequest(want: Want, startId: number): void;
+
+    /**
+     * Called back when a input method extension is first connected to an ability.
+     *
+     * @since 9
+     * @syscap SystemCapability.MiscServices.InputMethodFramework
+     * @param want Indicates connection information about the Service ability.
+     * @return Returns the proxy of the Service ability.
+     * @throws {BusinessError} 401 - parameter error.
+     * @StageModelOnly
+     */
+    onConnect(want: Want): rpc.RemoteObject;
+
+    /**
+     * Called back when all abilities connected to a input method extension are disconnected.
+     *
+     * @since 9
+     * @syscap SystemCapability.MiscServices.InputMethodFramework
+     * @param want Indicates disconnection information about the service extension.
+     * @return -
+     * @throws {BusinessError} 401 - parameter error.
+     * @StageModelOnly
+     */
+    onDisconnect(want: Want): void;
+
+    /**
+     * Called when a new client attempts to connect to a input method extension after all previous client connections to it
+     * are disconnected.
+     *
+     * @since 9
+     * @syscap SystemCapability.MiscServices.InputMethodFramework
+     * @param want Indicates the want of the service extension being connected.
+     * @return -
+     * @throws {BusinessError} 401 - parameter error.
+     * @StageModelOnly
+     */
+    onReconnect(want: Want): void;
+}

api/@ohos.inputmethodextensioncontext.d.ts

@@ -0,0 +1,48 @@
+/*
+ * Copyright (c) 2022 Huawei Device Co., Ltd.
+ * 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 {AsyncCallback} from './basic';
+import ExtensionContext from './application/ExtensionContext';
+
+/**
+ * The extension context class of input method.
+ *
+ * @since 9
+ * @syscap SystemCapability.MiscServices.InputMethodFramework
+ * @StageModelOnly
+ */
+export default class InputMethodExtensionContext extends ExtensionContext {
+    /**
+     * Destroy the input method extension.
+     *
+     * @since 9
+     * @syscap SystemCapability.MiscServices.InputMethodFramework
+     * @return -
+     * @throws {BusinessError} 401 - parameter error.
+     * @StageModelOnly
+     */
+    destroy(callback: AsyncCallback<void>): void;
+
+    /**
+     * Destroy the input method extension.
+     *
+     * @since 9
+     * @syscap SystemCapability.MiscServices.InputMethodFramework
+     * @return -
+     * @throws {BusinessError} 401 - parameter error.
+     * @StageModelOnly
+     */
+    destroy(): Promise<void>;
+}