From d072693e7d3e0079822ce959c0c7453d54a19b12 Mon Sep 17 00:00:00 2001
From: ocean-gao <gaopandyx@163.com>
Date: Tue, 10 May 2022 18:40:14 +0800
Subject: [PATCH] =?UTF-8?q?fix:=20=E9=87=8D=E6=96=B0=E6=B8=B2=E6=9F=93?=
 =?UTF-8?q?=E6=B0=B4=E5=8D=B0?=
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---
 packages/fes-plugin-watermark/src/runtime/core.js | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/packages/fes-plugin-watermark/src/runtime/core.js b/packages/fes-plugin-watermark/src/runtime/core.js
index 605a7061..38420c86 100644
--- a/packages/fes-plugin-watermark/src/runtime/core.js
+++ b/packages/fes-plugin-watermark/src/runtime/core.js
@@ -86,7 +86,8 @@ function _createWatermark(param) {
         parseInt(fontSize) + 5
     );
 
-    const watermarkDiv = document.createElement('div');
+    let __wm = document.querySelector('.__wm');
+    const watermarkDiv = __wm || document.createElement('div');
     const styleStr = `
     position: ${container === document.body ? 'fixed' : 'absolute'};
     user-select: none;
@@ -102,12 +103,14 @@ function _createWatermark(param) {
     watermarkDiv.setAttribute('style', styleStr);
     watermarkDiv.classList.add('__wm');
 
-    container.insertBefore(watermarkDiv, container.firstChild);
+    if (!__wm) {
+        container.insertBefore(watermarkDiv, container.firstChild);
+    }
 
     const MutationObserver = window.MutationObserver || window.WebKitMutationObserver;
     if (MutationObserver) {
         _wmMo = new MutationObserver(() => {
-            const __wm = document.querySelector('.__wm');
+            __wm = document.querySelector('.__wm');
             if ((__wm && __wm.getAttribute('style') !== styleStr) || !__wm) {
                 // 避免一直触发
                 _wmMo.disconnect();