* [refac bug #64675] Fix for preview office file.

lib/zin/wg/docapp/js/v1.js

@@ -1221,7 +1221,7 @@ const actionsMap =
         const canEdit      = !isReadonly && privs.edit && (!doc.privs || doc.privs.edit !== false) && privs.editFile;
         const canDelete    = !isReadonly && privs.edit && (!doc.privs || doc.privs.edit !== false) && privs.deleteFile;
         const hasExtension = file.title.lastIndexOf('.' + file.extension) == (file.title.length - file.extension.length - 1);
-        const canPreview   = hasExtension && 'mp4,txt,jpg,jpeg,gif,png,bmp'.split(',').includes(file.extension);
+        const canPreview   = hasExtension && canPreviewExtensions.split('|').includes(file.extension);
         return [
             canPreview ? {'data-toggle': 'modal', 'data-size': 'lg', url: $.createLink('file', 'download', `fileID=${file.id}&mouse=left`), hint: lang.filePreview, icon: 'eye'} : null,
             {target: '_blank', url: zui.formatString(docApp.props.fileUrl, file), hint: lang.fileDownload, icon: 'download'},

lib/zin/wg/docapp/v1.php

@@ -320,6 +320,10 @@ class docApp extends wg
         $historyPanelProps = array('fileListProps' => $fileListProps);
         $canPreviewOffice  = $canDownload && isset($config->file->libreOfficeTurnon) and $config->file->libreOfficeTurnon == 1;
 
+        $canPreviewExtensions = 'txt|jpg|jpeg|gif|png|bmp|mp4';
+        if($canPreviewOffice) $canPreviewExtensions .= '|doc|docx|xls|xlsx|ppt|pptx|pdf';
+        jsVar('canPreviewExtensions', $canPreviewExtensions);
+
         // 不可用场景：文档模板、API 文档、开源版
         $diffEnabled = ($config->edition != 'open')
             && !($rawModule == 'doc' && $rawMethod == 'view')