From bbeadf82336e10873ee767be9ca2ba62a20b496b Mon Sep 17 00:00:00 2001
From: "Julia.Radzhabova" <Julia.Radzhabova@onlyoffice.com>
Date: Fri, 29 Aug 2025 22:37:29 +0300
Subject: [PATCH] For Bug 25910

---
 .../main/app/controller/Statusbar.js          | 18 +++++++++++--
 apps/spreadsheeteditor/main/locale/en.json    |  2 ++
 apps/spreadsheeteditor/mobile/locale/en.json  |  4 ++-
 .../mobile/src/controller/Statusbar.jsx       | 25 ++++++++++++++++---
 4 files changed, 43 insertions(+), 6 deletions(-)

diff --git a/apps/spreadsheeteditor/main/app/controller/Statusbar.js b/apps/spreadsheeteditor/main/app/controller/Statusbar.js
index eb0b141ec4..9b1734897a 100644
--- a/apps/spreadsheeteditor/main/app/controller/Statusbar.js
+++ b/apps/spreadsheeteditor/main/app/controller/Statusbar.js
@@ -785,9 +785,23 @@ define([
         onAddWorksheetClick: function(o, index, opts) {
             if (this.api) {
                 this.api.asc_closeCellEditor();
-                this.api.asc_addWorksheet(this.createSheetName());
 
-                Common.NotificationCenter.trigger('comments:updatefilter', ['doc', 'sheet' + this.api.asc_getActiveWorksheetId()], false);  //  hide popover
+                if (this.statusbar.mode.spreadsheet.fileType.toLowerCase()==='csv') {
+                    Common.UI.warning({
+                        msg: this.warnAddSheetCsv,
+                        buttons: [{value: 'ok', caption: this.textContinue}, 'cancel'],
+                        maxwidth: 500,
+                        callback: _.bind(function (btn) {
+                            if (btn == 'ok') {
+                                this.api.asc_addWorksheet(this.createSheetName());
+                                Common.NotificationCenter.trigger('comments:updatefilter', ['doc', 'sheet' + this.api.asc_getActiveWorksheetId()], false);  //  hide popover
+                            }
+                        }, this)
+                    });
+                } else {
+                    this.api.asc_addWorksheet(this.createSheetName());
+                    Common.NotificationCenter.trigger('comments:updatefilter', ['doc', 'sheet' + this.api.asc_getActiveWorksheetId()], false);  //  hide popover
+                }
             }
             Common.NotificationCenter.trigger('edit:complete', this.statusbar);
         },
diff --git a/apps/spreadsheeteditor/main/locale/en.json b/apps/spreadsheeteditor/main/locale/en.json
index afd19ab7b5..0c8156a970 100644
--- a/apps/spreadsheeteditor/main/locale/en.json
+++ b/apps/spreadsheeteditor/main/locale/en.json
@@ -1611,6 +1611,8 @@
   "SSE.Controllers.Statusbar.textSheetViewTipFilters": "You are in Sheet View mode. Filters are visible only to you and those who are still in this view.",
   "SSE.Controllers.Statusbar.warnDeleteSheet": "The selected sheets might contain data. Are you sure you want to proceed?",
   "SSE.Controllers.Statusbar.zoomText": "Zoom {0}%",
+  "SSE.Controllers.Statusbar.warnAddSheetCsv": "The CSV format does not support saving a multi-sheet file. Only the active sheet will be saved. To keep all sheets, please save the file in a different format.",
+  "SSE.Controllers.Statusbar.textContinue": "Continue",
   "SSE.Controllers.TableDesignTab.notcriticalErrorTitle": "Warning",
   "SSE.Controllers.TableDesignTab.textExistName": "ERROR! A range with such a name already exists",
   "SSE.Controllers.TableDesignTab.textInvalidName": "ERROR! Invalid table name",
diff --git a/apps/spreadsheeteditor/mobile/locale/en.json b/apps/spreadsheeteditor/mobile/locale/en.json
index 0c22698b2d..3201719987 100644
--- a/apps/spreadsheeteditor/mobile/locale/en.json
+++ b/apps/spreadsheeteditor/mobile/locale/en.json
@@ -448,7 +448,9 @@
     "textSheetName": "Sheet Name",
     "textTabColor": "Tab Color",
     "textUnhide": "Unhide",
-    "textWarnDeleteSheet": "The sheet maybe has data. Proceed operation?"
+    "textWarnDeleteSheet": "The sheet maybe has data. Proceed operation?",
+    "textContinue": "Continue",
+    "warnAddSheetCsv": "The CSV format does not support saving a multi-sheet file. Only the active sheet will be saved. To keep all sheets, please save the file in a different format."
   },
   "Toolbar": {
     "btnRestartNow": "Restart now",
diff --git a/apps/spreadsheeteditor/mobile/src/controller/Statusbar.jsx b/apps/spreadsheeteditor/mobile/src/controller/Statusbar.jsx
index 031399e012..806e470fcf 100644
--- a/apps/spreadsheeteditor/mobile/src/controller/Statusbar.jsx
+++ b/apps/spreadsheeteditor/mobile/src/controller/Statusbar.jsx
@@ -109,8 +109,8 @@ const StatusbarController = inject('storeWorksheets', 'storeFocusObjects', 'user
     return null;
 }));
 
-const Statusbar = inject('storeWorksheets', 'storeAppOptions', 'users')(observer(props => {
-    const {storeWorksheets, storeAppOptions, users} = props;
+const Statusbar = inject('storeWorksheets', 'storeAppOptions', 'users', 'storeSpreadsheetInfo')(observer(props => {
+    const {storeWorksheets, storeAppOptions, users, storeSpreadsheetInfo} = props;
     const {t} = useTranslation();
     const _t = t('Statusbar', {returnObjects: true});
     const isEdit = storeAppOptions.isEdit;
@@ -161,7 +161,26 @@ const Statusbar = inject('storeWorksheets', 'storeAppOptions', 'users')(observer
     const onAddTabClicked = () => {
         const api = Common.EditorApi.get();
         api.asc_closeCellEditor();
-        api.asc_addWorksheet(createSheetName());
+
+        if ((storeSpreadsheetInfo.dataDoc?.fileType ?? '').toLowerCase() === 'csv') {
+            f7.dialog.create({
+                title: _t.notcriticalErrorTitle,
+                text: _t.warnAddSheetCsv,
+                buttons: [
+                    {
+                        text: _t.textCancel
+                    },
+                    {
+                        text: _t.textContinue,
+                        onClick: () => {
+                            api.asc_addWorksheet(createSheetName());
+                        }
+                    }
+                ]
+            }).open();
+        } else {
+            api.asc_addWorksheet(createSheetName());
+        }
     };
 
     const onTabClick = (i, target) => {