feat(Calendar): add open、opened event

src/calendar/README.md

@@ -251,8 +251,10 @@ Set `poppable` to `false`, the calendar will be displayed directly on the page i
 |------|------|------|
 | select | Triggered when select date | *value: Date \| Date[]* |
 | confirm | Triggered after date selection is complete，if `show-confirm` is` true`, it is triggered after clicking the confirm button | *value: Date \| Date[]* |
-| close `v2.5.2` | Triggered when close Calendar Popup | - |
-| closed `v2.5.2` | Triggered when closed Calendar Popup | - |
+| open `v2.5.2` | Triggered when open Popup | - |
+| close `v2.5.2` | Triggered when close Popup | - |
+| opened `v2.5.2` | Triggered when opened Popup | - |
+| closed `v2.5.2` | Triggered when closed Popup | - |
 
 ### Slots
 

src/calendar/README.zh-CN.md

@@ -253,7 +253,9 @@ export default {
 |------|------|------|
 | select | 点击任意日期时触发 | *value: Date \| Date[]* |
 | confirm | 日期选择完成后触发，若`show-confirm`为`true`，则点击确认按钮后触发 | *value: Date \| Date[]* |
+| open `v2.5.2` | 打开弹出层时触发 | - |
 | close `v2.5.2` | 关闭弹出层时触发 | - |
+| opened `v2.5.2` | 打开弹出层且动画结束后触发 | - |
 | closed `v2.5.2` | 关闭弹出层且动画结束后触发 | - |
 
 ### Slots

src/calendar/index.js

@@ -387,6 +387,8 @@ export default createComponent({
           closeOnPopstate={this.closeOnPopstate}
           closeOnClickOverlay={this.closeOnClickOverlay}
           onInput={this.togglePopup}
+          onOpen={createListener('open')}
+          onOpened={createListener('opened')}
           onClose={createListener('close')}
           onClosed={createListener('closed')}
         >