From cb7d54be8026993d4170fe952c65cfd4d95ddd2b Mon Sep 17 00:00:00 2001
From: gx-mac <gaox2025f@gmail.com>
Date: Tue, 2 Mar 2021 16:40:03 +0800
Subject: [PATCH] fix: update

---
 build/Table.js | 22 +++++++++++++++++++---
 package.json   |  2 +-
 2 files changed, 20 insertions(+), 4 deletions(-)

diff --git a/build/Table.js b/build/Table.js
index 0cdd77f..ad15c2c 100644
--- a/build/Table.js
+++ b/build/Table.js
@@ -487,11 +487,27 @@ var Table = function (_Component) {
     if (prevScrollY && currentScrollY && prevScrollY !== currentScrollY && this.props.lazyLoad && !this.props.ignoreScrollYChange) {
       this.bodyTable.scrollTop = 0;
     } else if (this.props.ignoreScrollYChange && currentScrollY && prevScrollY && prevScrollY !== currentScrollY) {
-      var distance = this.bodyTable.scrollTop + (currentScrollY - prevScrollY);
-      if (distance < 0) {
+      var bodyScrollTop = this.bodyTable.scrollTop;
+      if (bodyScrollTop === 0) {
+        // 在顶部的时候，滚动条不用动
         this.bodyTable.scrollTop = 0;
       } else {
-        this.bodyTable.scrollTop = distance;
+        var distance = bodyScrollTop + currentScrollY - prevScrollY;
+        if (distance < 0) {
+          this.bodyTable.scrollTop = 0;
+        } else {
+          var _bodyTable = this.bodyTable,
+              scrollHeight = _bodyTable.scrollHeight,
+              scrollTop = _bodyTable.scrollTop;
+
+          var bottomDistance = Math.abs(scrollHeight - scrollTop - prevScrollY); // 在最底部的时候也不用滚动滚动条
+          if (bottomDistance < 5) {
+            // 有些dom计算不是十分精确，设置一个值来缓冲一下
+            this.bodyTable.scrollTop = scrollTop + prevScrollY - currentScrollY;
+          } else {
+            this.bodyTable.scrollTop = distance;
+          }
+        }
       }
     }
     // 是否传入 scroll中的y属性，如果传入判断是否是整数，如果是则进行比较 。bodyTable 的clientHeight进行判断
diff --git a/package.json b/package.json
index df701dd..ed54056 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
  "name": "bee-table",
- "version": "2.3.15-beta.2",
+ "version": "2.3.15-beta.3",
  "description": "Table ui component for react",
  "keywords": [
   "react",