Merge branch 'fix/documenteditor_toolbar' into 'wrdp'

修复版式文件编辑器的操作条，在tab页种位置异常的错误

See merge request o2oa/o2oa!3106

o2web/source/x_component_process_Xform/Documenteditor.js

@@ -1079,7 +1079,7 @@ MWF.xApplication.process.Xform.Documenteditor = MWF.APPDocumenteditor =  new Cla
                 paddingTop = 0;
             }
 
-            if (p.y<paddingTop){
+            if (p.y<paddingTop && this.toolNode.offsetParent){
                 this.toolbarNode.inject(this.scrollNode);
                 this.toolbarNode.setStyles({
                     "position": "absolute",