!7796 翻译完成：6240+6865+7114 js-apis-application-WindowExtensionAbility.md

Merge pull request !7796 from wusongqing/TR6240

en/application-dev/reference/apis/js-apis-application-WindowExtensionAbility.md

+# Window Extension Ability
+**WindowExtensionAbility** inherits from **ExtensionAbility**. The content in a **WindowExtensionAbility** object can be displayed as an ability component in other application windows.
+
+> **NOTE**
+>
+> The initial APIs of this module are supported since API version 9. Newly added APIs will be marked with a superscript to indicate their earliest API version.
+> 
+> The APIs provided by this module are system APIs.
+>
+> The APIs of this module can be used only in the stage model.
+
+## Modules to Import
+
+```ts
+import WindowExtensionAbility from '@ohos.application.WindowExtensionAbility';
+```
+
+## Attributes
+
+**System capability**: SystemCapability.WindowManager.WindowManager.Core
+
+| Name     | Type| Readable| Writable| Description                     |
+| --------- | -------- | ---- | ---- | ------------------------- |
+| context      | [ExtensionContext](js-apis-extension-context.md)   | Yes  | No  | Context of an Extension ability.     |
+
+## WindowExtensionAbility.onConnect
+
+onConnect(want: Want): rpc.RemoteObject
+
+Called when this Window Extension ability is connected to an ability for the first time.
+
+**System capability**: SystemCapability.WindowManager.WindowManager.Core
+
+| Name| Type| Mandatory| Description|
+| -------- | -------- | -------- | -------- |
+| want | [Want](js-apis-application-Want.md) | Yes| Information related to this Window Extension ability, including the ability name and bundle name. |
+
+**Return value**
+| Type                                           | Description                |
+| ----------------------------------------------- | -------------------- |
+| [rpc.RemoteObject](js-apis-rpc.md#remoteobject) | Proxy of this Window Extension ability.|
+
+**Example**
+
+```ts
+import rpc from '@ohos.rpc';
+
+class StubTest extends rpc.RemoteObject {
+    constructor(des) {
+        super(des);
+    }
+    onRemoteRequest(code, data, reply, option) {
+        return true;
+    }
+    queryLocalInterface(descriptor) {
+        return null;
+    }
+    getInterfaceDescriptor() {
+        return "";
+    }
+    sendRequest(code, data, reply, options) {
+        return null;
+    }
+    getCallingPid() {
+        return 1;
+    }
+    getCallingUid() {
+        return 1;
+    }
+    attachLocalInterface(localInterface, descriptor){}
+}
+
+export default class MyWindowExtensionAbility extends WindowExtensionAbility {
+
+  onConnect(want): rpc.RemoteObject {
+    console.info('WindowExtAbility onConnect ' + want.abilityName);
+    return new StubTest("test");
+  }
+
+}
+```
+
+## WindowExtensionAbility.onDisconnect
+
+onDisconnect(want: Want): void
+
+Called when this Window Extension ability is disconnected from all connected abilities.
+
+**System capability**: SystemCapability.WindowManager.WindowManager.Core
+
+| Name| Type| Mandatory| Description|
+| -------- | -------- | -------- | -------- |
+| want | [Want](js-apis-application-Want.md) | Yes| Information related to this Window Extension ability, including the ability name and bundle name. |
+
+
+**Example**
+
+```ts
+export default class MyWindowExtensionAbility extends WindowExtensionAbility {
+
+  onDisconnect(want) {
+    console.info('WindowExtAbility onDisconnect ' + want.abilityName);
+  }
+
+}
+```
+
+
+## WindowExtensionAbility.onWindowReady
+
+onWindowReady(window: Window): void
+
+Called when a window is ready.
+
+**System capability**: SystemCapability.WindowManager.WindowManager.Core
+
+| Name| Type| Mandatory| Description|
+| -------- | -------- | -------- | -------- |
+| window | [Window](js-apis-window.md) | Yes| Current **Window** instance.|
+
+
+**Example**
+
+```ts
+export default class MyWindowExtensionAbility extends WindowExtensionAbility {
+
+  onWindowReady(window) {
+    window.loadContent('WindowExtAbility/pages/index1').then(() => {
+      window.getProperties().then((pro) => {
+        console.log("WindowExtension " + JSON.stringify(pro));
+      })
+      window.show();
+    })
+  }
+
+}
+```