From a6f2d4e6686fc5acc517d9202825f45cd1ddb15b Mon Sep 17 00:00:00 2001
From: Lindy <33708359+Lindysen@users.noreply.github.com>
Date: Fri, 10 Apr 2020 23:02:08 +0800
Subject: [PATCH] feat(Calendar): add cancel event (#2990)

* feat(Calendar): add cancel event

* feat(Calendar): rename  cancel event
---
 example/pages/calendar/index.js   |  4 ++++
 example/pages/calendar/index.wxml |  1 +
 packages/calendar/README.md       |  1 +
 packages/calendar/index.ts        | 10 +++++++++-
 4 files changed, 15 insertions(+), 1 deletion(-)

diff --git a/example/pages/calendar/index.js b/example/pages/calendar/index.js
index 3becd5b0..d66619cd 100644
--- a/example/pages/calendar/index.js
+++ b/example/pages/calendar/index.js
@@ -48,6 +48,10 @@ Page({
     console.log(event);
   },
 
+  onUnselect(event) {
+    console.log(event);
+  },
+
   onClose() {
     this.setData({ showCalendar: false });
   },
diff --git a/example/pages/calendar/index.wxml b/example/pages/calendar/index.wxml
index 1aeee9d9..c4a5ac99 100644
--- a/example/pages/calendar/index.wxml
+++ b/example/pages/calendar/index.wxml
@@ -131,6 +131,7 @@
   confirm-disabled-text="{{ confirmDisabledText }}"
   bind:confirm="onConfirm"
   bind:select="onSelect"
+  bind:unselect="onUnselect"
   bind:open="onOpen"
   bind:opened="onOpened"
   bind:close="onClose"
diff --git a/packages/calendar/README.md b/packages/calendar/README.md
index c55b9973..8195716e 100644
--- a/packages/calendar/README.md
+++ b/packages/calendar/README.md
@@ -308,6 +308,7 @@ Page({
 | 事件名  | 说明                                                               | 回调参数                |
 | ------- | ------------------------------------------------------------------ | ----------------------- |
 | select  | 点击任意日期时触发                                                 | _value: Date \| Date[]_ |
+| unselect  | 当 Canlendar 的 `type` 为 `multiple` 时,点击已选中的日期时触发       | _value: 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    | 打开弹出层时触发                                                   | -                       |
 | close   | 关闭弹出层时触发                                                   | -                       |
diff --git a/packages/calendar/index.ts b/packages/calendar/index.ts
index d71bd2eb..30ad9a45 100644
--- a/packages/calendar/index.ts
+++ b/packages/calendar/index.ts
@@ -247,8 +247,9 @@ VantComponent({
         });
 
         if (selected) {
-          currentDate.splice(selectedIndex, 1);
+          const cancelDate = currentDate.splice(selectedIndex, 1);
           this.setData({ currentDate });
+          this.unselect(cancelDate);
         } else {
           this.select([...currentDate, date]);
         }
@@ -257,6 +258,13 @@ VantComponent({
       }
     },
 
+    unselect(dateArray) {
+      const date = dateArray[0];
+      if (date) {
+        this.$emit('unselect', copyDates(date));
+      }
+    },
+
     select(date, complete) {
       const getTime = (date: Date | number) =>
         (date instanceof Date ? date.getTime() : date);