From 4925a60e44cbaab9977c4ad63e0ffbcfe9ce0da4 Mon Sep 17 00:00:00 2001
From: Jackson <wupeng_xg@163.com>
Date: Wed, 22 Nov 2017 15:04:49 +0800
Subject: [PATCH] =?UTF-8?q?feat:=20event=E9=97=AE=E9=A2=98=E8=A7=A3?=
 =?UTF-8?q?=E5=86=B3=20(#917)?=
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* feat: event问题解决

* feat: event问题解决
---
 src/mip-showmore/mip-showmore.js | 17 ++++++++++++-----
 1 file changed, 12 insertions(+), 5 deletions(-)

diff --git a/src/mip-showmore/mip-showmore.js b/src/mip-showmore/mip-showmore.js
index 4a299faa2..7397b0452 100755
--- a/src/mip-showmore/mip-showmore.js
+++ b/src/mip-showmore/mip-showmore.js
@@ -214,7 +214,9 @@ define(function (require) {
     Showmore.prototype.toggle = function (event) {
         var me = this;
         var classList = this.ele.classList;
-        var clickBtn = matchOriginTarget(this.ele.id.trim(), event.target);
+        var clickBtn = event && event.target
+            ? matchOriginTarget(this.ele.id.trim(), event.target)
+            : null;
         var opt = {};
         opt.aniTime = this.animateTime;
         if (this.showType === this.heightType[2]) {
@@ -291,13 +293,17 @@ define(function (require) {
         if (!status) {
             return;
         }
-        var closeclass = clickBtn.dataset.closeclass;
+        var closeclass;
+        if (clickBtn && clickBtn.dataset && clickBtn.dataset.closeclass) {
+            closeclass = clickBtn.dataset.closeclass;
+        }
         if (status === 'showOpen') {
             // v1.1.0 显示“展开”按钮
             if (clickBtn) {
                 if (closeclass) {
                     clickBtn.classList.remove(closeclass);
-                } else {
+                }
+                else {
                     clickBtn.innerText = clickBtn.dataset.opentext;
                 }
             }
@@ -312,8 +318,9 @@ define(function (require) {
             // v1.1.0显示“收起”按钮
             if (clickBtn) {
                 if (closeclass) {
-                    clickBtn.classList.add(closeclass)
-                } else {
+                    clickBtn.classList.add(closeclass);
+                }
+                else {
                     var opentext = clickBtn.innerText;
                     clickBtn.innerText = clickBtn.dataset.closetext || '收起';
                     clickBtn.dataset.opentext = opentext;