From bc80708787ea0b955e1cb7717ba855c988a6f635 Mon Sep 17 00:00:00 2001
From: mxie <15623530290@163.com>
Date: Mon, 6 Aug 2018 12:07:04 +0800
Subject: [PATCH] feat: add event 'change-calendar-year'
 'change-calendar-month'

---
 src/calendar.vue | 24 ++++++++++++++++++++++--
 1 file changed, 22 insertions(+), 2 deletions(-)

diff --git a/src/calendar.vue b/src/calendar.vue
index d87924c..ca49583 100644
--- a/src/calendar.vue
+++ b/src/calendar.vue
@@ -290,14 +290,34 @@ export default {
     changeCalendarMonth (month) {
       this.now = new Date(this.calendarYear, month)
     },
+    getSibling () {
+      const calendars = this.$parent.$children.filter(v => v.$options.name === this.$options.name)
+      const index = calendars.indexOf(this)
+      const sibling = calendars[index ^ 1]
+      return sibling
+    },
     handleIconMonth (flag) {
-      this.changeCalendarMonth(this.calendarMonth + flag)
+      const month = this.calendarMonth
+      this.changeCalendarMonth(month + flag)
+      this.$parent.$emit('change-calendar-month', {
+        month,
+        flag,
+        vm: this,
+        sibling: this.getSibling()
+      })
     },
     handleIconYear (flag) {
       if (this.panel === 'YEAR') {
         this.changePanelYears(flag)
       } else {
-        this.changeCalendarYear(this.calendarYear + flag)
+        const year = this.calendarYear
+        this.changeCalendarYear(year + flag)
+        this.$parent.$emit('change-calendar-year', {
+          year,
+          flag,
+          vm: this,
+          sibling: this.getSibling()
+        })
       }
     },
     handleBtnYear () {