Table 组件修复当表格配置了纵向自适应，出现横行滚动条的时候 ，横行滚动条高度会遮住最后一行表格bug

Author: 黄书伟

packages/src/utils/utils.js

@@ -1,7 +1,14 @@
 import settings from '../settings/settings'
 
 export default {
-    // 获取当前元素的left、top偏移
+    /*获取当前元素的left、top偏移
+    *   left：元素最左侧距离文档左侧的距离
+    *   top:元素最顶端距离文档顶端的距离
+    *   right:元素最右侧距离文档右侧的距离
+    *   bottom：元素最底端距离文档底端的距离
+    *   right2：元素最左侧距离文档右侧的距离
+    *   bottom2：元素最底端距离文档最底部的距离
+    * */
     getViewportOffset(element) {
 
         var doc = document.documentElement,
@@ -19,7 +26,9 @@ export default {
             left: left,
             top: top,
             right: window.document.documentElement.clientWidth - box.width - left,
-            bottom: window.document.documentElement.clientHeight - box.height - top
+            bottom: window.document.documentElement.clientHeight - box.height - top,
+            right2: window.document.documentElement.clientWidth - left,
+            bottom2: window.document.documentElement.clientHeight - top,
         }
     },
 
@@ -99,7 +108,7 @@ export default {
     // 是否包含横向滚动条
     hasHorizontalScrollBar(ele){
 
-        if (ele){
+        if (ele) {
 
             return ele.scrollWidth > ele.clientWidth;
         }
@@ -108,7 +117,7 @@ export default {
     // 是否包含纵向滚动条
     hasVerticalScrollBar(ele){
 
-        if (ele){
+        if (ele) {
 
             return ele.scrollHeight > ele.clientHeight;
         }
@@ -140,14 +149,14 @@ export default {
     },
 
     // 获取父组件信息
-    getParentCompByName(context,name){
+    getParentCompByName(context, name){
 
         let parent = context.$parent;
 
         while (parent) {
             if (parent.$options.name !== name) {
                 parent = parent.$parent;
-            }else{
+            } else {
                 return parent;
             }
         }
@@ -156,19 +165,19 @@ export default {
     },
 
     // 获取多个符合条件的子组件信息
-    getChildCompsByName(context,name){
+    getChildCompsByName(context, name){
 
         let result = [];
 
         let childrens = context.$children;
 
         while (childrens && childrens.length > 0) {
 
-            childrens.forEach(child=>{
+            childrens.forEach(child => {
 
                 childrens = child.$children ? child.$children : null;
 
-                if (child.$options.name === name){
+                if (child.$options.name === name) {
 
                     result.push(child);
                 }

packages/v-table/src/table-resize-mixin.js

@@ -120,8 +120,18 @@ export  default {
                 currentWidth = view.getBoundingClientRect !== 'undefined' ? view.getBoundingClientRect().width : view.clientWidth,
                 currentHeight = view.getBoundingClientRect !== 'undefined' ? view.getBoundingClientRect().height : view.clientHeight,
                 //right = window.document.documentElement.clientWidth - currentWidth - viewOffset.left,
-                bottom = window.document.documentElement.clientHeight - currentHeight - viewOffset.top - 2; //
+                bottom = window.document.documentElement.clientHeight - currentHeight - viewOffset.top - 2,
+                bottom2 = viewOffset.bottom2,
+                scrollbarWidth = this.scrollbarWidth;
+
 
+            if (this.isHorizontalResize && this.internalWidth && this.internalWidth > 0 && currentWidth > 0) {
+
+                currentWidth = currentWidth > maxWidth ? maxWidth : currentWidth;
+                currentWidth = currentWidth < minWidth ? minWidth : currentWidth;
+
+                this.internalWidth = currentWidth;
+            }
 
             if (this.isVerticalResize && currentHeight > 0) {
 
@@ -130,17 +140,30 @@ export  default {
                 currentHeight = currentHeight + bottom;// - this.VerticalResizeOffset;
                 currentHeight = currentHeight > maxHeight ? maxHeight : currentHeight;
                 currentHeight = currentHeight < minHeight ? minHeight : currentHeight;
-                this.internalHeight = currentHeight;
-            }
 
-            if (this.isHorizontalResize && this.internalWidth && this.internalWidth > 0 && currentWidth > 0) {
+                // 有横向滚动条
+                if (currentWidth <= this.initTotalColumnsWidth && !this.isTableEmpty) {
 
-                currentWidth = currentWidth > maxWidth ? maxWidth : currentWidth;
-                currentWidth = currentWidth < minWidth ? minWidth : currentWidth;
+                    bottom2 -= this.verticalResizeOffset;
 
-                this.internalWidth = currentWidth;
-                this.changeColumnsWidth(currentWidth);
+                    let differ = bottom2 - totalColumnsHeight;
+
+                    // 高度足够（table 顶部到文档底部的高度 > 表格高度+滚动条高度）
+                    if (bottom2 > totalColumnsHeight + scrollbarWidth){
+
+                        currentHeight += scrollbarWidth;
+
+                    }
+                    else if(differ > 0 && differ < scrollbarWidth){
+
+                        currentHeight += differ;
+                    }
+                }
+
+                this.internalHeight = currentHeight;
             }
+
+            this.changeColumnsWidth(currentWidth);
         },
 
         // 改变所有需要自适应列的宽度