From f9c999ae2fc66584e9b9e880272341a1b82fd508 Mon Sep 17 00:00:00 2001
From: zhangdaiscott <zhangdaiscott@163.com>
Date: Sat, 8 Apr 2023 17:31:29 +0800
Subject: [PATCH] =?UTF-8?q?[issue/430]=E5=BC=B9=E5=87=BA=E9=A1=B5=E9=9D=A2?=
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---
 src/components/Modal/src/hooks/useModalDrag.ts | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/components/Modal/src/hooks/useModalDrag.ts b/src/components/Modal/src/hooks/useModalDrag.ts
index ff05b7b..220bfc4 100644
--- a/src/components/Modal/src/hooks/useModalDrag.ts
+++ b/src/components/Modal/src/hooks/useModalDrag.ts
@@ -36,7 +36,12 @@ export function useModalDragMove(context: UseModalDragMoveContext) {
 
       const maxDragDomLeft = screenWidth - dragDom.offsetLeft - dragDomWidth;
       const minDragDomTop = dragDom.offsetTop;
-      const maxDragDomTop = screenHeight - dragDom.offsetTop - dragDomheight;
+      let maxDragDomTop = screenHeight - dragDom.offsetTop - dragDomheight;
+      //update-begin-author:liusq---date:20230407--for: [issue/430]弹出页面出现自动吸顶，无法移动和显示头部--- 
+      if(maxDragDomTop<0){
+        maxDragDomTop = screenHeight - dragDom.offsetTop
+      }
+      //update-end-author:liusq---date:20230407--for: [issue/430]弹出页面出现自动吸顶，无法移动和显示头部--- 
       // 获取到的值带px 正则匹配替换
       const domLeft = getStyle(dragDom, 'left');
       const domTop = getStyle(dragDom, 'top');