add docs for getInspectorTree/sendTouchEvent/sendKeyEvent/sendMouseEvent

Signed-off-by: Nzcdqs <junfeng.lijunfeng@huawei.com>
Change-Id: I3cd48976c91579278a90990dfcf5bc4f25e467d7

zh-cn/application-dev/reference/arkui-ts/ts-universal-attributes-component-id.md

 # 组件标识
 
+id为组件的唯一标识，在整个应用内唯一。本模块提供组件标识相关接口，可以获取指定id组件的属性，也提供向指定id组件发送事件的功能。
+
 >  **说明：**
 > 从API Version 8开始支持。后续版本如有新增内容，则采用上角标单独标记该内容的起始版本。
 
@@ -35,6 +37,17 @@ getInspectorByKey(id: string): string
   | -------- | -------- |
   | string | 组件属性列表的JSON字符串。 | 
 
+### getInspectorTree
+
+getInspectorTree(): string
+
+获取组件树及组件属性。
+
+- 返回值
+
+  | 类型   | 描述                               |
+  | ------ | ---------------------------------- |
+  | string | 组件树及组件属性列表的JSON字符串。 |
 
 ### sendEventByKey
 
@@ -54,50 +67,196 @@ sendEventByKey(id: string, action: number, params: string): boolean
   | -------- | -------- |
   | boolean | 找不到指定id的组件时返回false，其余情况返回true。 | 
 
+### sendTouchEvent
+
+sendTouchEvent(event: TouchObject): boolean
+
+发送触摸事件。
+
+- 参数
+
+  | 参数  | 类型        | 必填 | 默认值 | 描述                                                         |
+  | ----- | ----------- | ---- | ------ | ------------------------------------------------------------ |
+  | event | TouchObject | 是   | -      | 触发触摸事件的位置，event参数见[TouchEvent](ts-universal-events-touch.md#touchevent对象说明)中TouchObject的介绍。 |
+
+- 返回值
+
+  | 类型    | 描述                                        |
+  | ------- | ------------------------------------------- |
+  | boolean | 事件发送失败时返回false，其余情况返回true。 |
+
+### sendKeyEvent
+
+sendKeyEvent(event: KeyEvent): boolean
+
+发送按键事件。
+
+- 参数
+
+  | 参数  | 类型     | 必填 | 默认值 | 描述                                                         |
+  | ----- | -------- | ---- | ------ | ------------------------------------------------------------ |
+  | event | KeyEvent | 是   | -      | 按键事件，event参数见[KeyEvent](ts-universal-events-key.md#keyevent对象说明)介绍。 |
+
+- 返回值
+
+  | 类型    | 描述                                          |
+  | ------- | --------------------------------------------- |
+  | boolean | 事件发送失败时时返回false，其余情况返回true。 |
+
+### sendMouseEvent
+
+sendMouseEvent(event: MouseEvent): boolean
+
+发送鼠标事件。
+
+- 参数
+
+  | 参数  | 类型       | 必填 | 默认值 | 描述                                                         |
+  | ----- | ---------- | ---- | ------ | ------------------------------------------------------------ |
+  | event | MouseEvent | 是   | -      | 鼠标事件，event参数见[MouseEvent](ts-universal-mouse-key.md#mouseevent对象说明)介绍。 |
+
+- 返回值
+
+  | 类型    | 描述                                          |
+  | ------- | --------------------------------------------- |
+  | boolean | 事件发送失败时时返回false，其余情况返回true。 |
 
 ## 示例
 
 ```ts
 // xxx.ets
+class Utils {
+  static rect_left;
+  static rect_top;
+  static rect_right;
+  static rect_bottom;
+  static rect_value;
+
+  static getComponentRect(key) {
+    let strJson = getInspectorByKey(key);
+    let obj = JSON.parse(strJson);
+    console.info("[getInspectorByKey] current component obj is: " + JSON.stringify(obj));
+    let rectInfo = JSON.parse('[' + obj.$rect + ']')
+    console.info("[getInspectorByKey] rectInfo is: " + rectInfo);
+    this.rect_left = JSON.parse('[' + rectInfo[0] + ']')[0]
+    this.rect_top = JSON.parse('[' + rectInfo[0] + ']')[1]
+    this.rect_right = JSON.parse('[' + rectInfo[1] + ']')[0]
+    this.rect_bottom = JSON.parse('[' + rectInfo[1] + ']')[1]
+    return this.rect_value = {
+      "left": this.rect_left, "top": this.rect_top, "right": this.rect_right, "bottom": this.rect_bottom
+    }
+  }
+}
+
 @Entry
 @Component
 struct IdExample {
+  @State text: string = ''
+
   build() {
     Flex({ direction: FlexDirection.Column, alignItems: ItemAlign.Center, justifyContent: FlexAlign.Center }) {
+
       Button() {
-        Text('click')
-          .fontSize(25)
-          .fontWeight(FontWeight.Bold)
-      }
-      .type(ButtonType.Capsule)
-      .margin({
-        top: 20
-      }).onClick(() => {
+        Text('onKeyTab').fontSize(25).fontWeight(FontWeight.Bold)
+      }.margin({ top: 20 }).backgroundColor('#0D9FFB')
+      .onKeyEvent(() => {
+        this.text = "onKeyTab"
+      })
+
+      Button() {
+        Text('click to start').fontSize(25).fontWeight(FontWeight.Bold)
+      }.margin({ top: 20 })
+      .onClick(() => {
         console.info(getInspectorByKey("click"))
         console.info(getInspectorTree())
+        this.text = "Button 'click to start' is clicked"
         setTimeout(() => {
           sendEventByKey("longclick", 11, "")
         }, 2000)
       }).id('click')
 
       Button() {
-        Text('longclick')
-          .fontSize(25)
-          .fontWeight(FontWeight.Bold)
-      }
-      .type(ButtonType.Capsule)
-      .margin({
-        top: 20
-      })
-      .backgroundColor('#0D9FFB')
+        Text('longclick').fontSize(25).fontWeight(FontWeight.Bold)
+      }.margin({ top: 20 }).backgroundColor('#0D9FFB')
       .gesture(
-        LongPressGesture().onActionEnd(() => {
-          console.info('long clicked')
-        }))
-      .id('longclick')
+      LongPressGesture().onActionEnd(() => {
+        console.info('long clicked')
+        this.text = "Button 'longclick' is longclicked"
+        setTimeout(() => {
+          let rect = Utils.getComponentRect('onTouch')
+          let touchPoint: TouchObject = {
+            id: 1,
+            x: rect.left + (rect.right - rect.left) / 2,
+            y: rect.top + (rect.bottom - rect.top) / 2,
+            type: TouchType.Down,
+            screenX: rect.left + (rect.right - rect.left) / 2,
+            screenY: rect.left + (rect.right - rect.left) / 2,
+          }
+          sendTouchEvent(touchPoint)
+          touchPoint.type = TouchType.Up
+          sendTouchEvent(touchPoint)
+        }, 2000)
+      })).id('longclick')
+
+      Button() {
+        Text('onTouch').fontSize(25).fontWeight(FontWeight.Bold)
+      }.type(ButtonType.Capsule).margin({ top: 20 })
+      .onClick(() => {
+        console.info('onTouch is clicked')
+        this.text = "Button 'onTouch' is clicked"
+        setTimeout(() => {
+          let rect = Utils.getComponentRect('onMouse')
+          let mouseEvent: MouseEvent = {
+            button: MouseButton.Left,
+            action: MouseAction.Press,
+            x: rect.left + (rect.right - rect.left) / 2,
+            y: rect.top + (rect.bottom - rect.top) / 2,
+            screenX: rect.left + (rect.right - rect.left) / 2,
+            screenY: rect.top + (rect.bottom - rect.top) / 2,
+            timestamp: 1,
+            target: {
+              area: {
+                width: 1,
+                height: 1,
+                position: {
+                  x: 1,
+                  y: 1
+                },
+                globalPosition: {
+                  x: 1,
+                  y: 1
+                }
+              }
+            },
+            source: SourceType.Mouse
+          }
+          sendMouseEvent(mouseEvent)
+        }, 2000)
+      }).id('onTouch')
+
+      Button() {
+        Text('onMouse').fontSize(25).fontWeight(FontWeight.Bold)
+      }.margin({ top: 20 }).backgroundColor('#0D9FFB')
+      .onMouse(() => {
+        console.info('onMouse')
+        this.text = "Button 'onMouse' in onMouse"
+        setTimeout(() => {
+          let keyEvent: KeyEvent = {
+            type: KeyType.Down,
+            keyCode: 2049,
+            keyText: 'tab',
+            keySource: 4,
+            deviceId: 0,
+            metaKey: 0,
+            timestamp: 0
+          }
+          sendKeyEvent(keyEvent)
+        }, 2000)
+      }).id('onMouse')
+
+      Text(this.text).fontSize(25).padding(15)
     }
-    .width('100%')
-    .height('100%')
+    .width('100%').height('100%')
   }
 }
 ```