限制sheet工作表的重命名不能为空

src/controllers/sheetBar.js

@@ -20,7 +20,7 @@ import luckysheetConfigsetting from './luckysheetConfigsetting';
 
 
 //表格底部名称栏区域 相关事件（增、删、改、隐藏显示、颜色等等）
-let isInitialSheetConfig = false, luckysheetcurrentSheetitem = null, jfdbclicklagTimeout = null;
+let isInitialSheetConfig = false, luckysheetcurrentSheetitem = null, jfdbclicklagTimeout = null,oldSheetFileName = "";;
 function showsheetconfigmenu() {
     if (!isInitialSheetConfig) {
         isInitialSheetConfig = true;
@@ -229,6 +229,18 @@ export function initialSheetBar(){
         if(Store.allowEdit===false){
             return;
         }
+
+        if(0 === $(this).text().length){
+           
+            alert(locale_sheetconfig.sheetNamecannotIsEmptyError);
+            setTimeout(()=>{
+                $(this).text(oldSheetFileName);
+                luckysheetsheetnameeditor($(this));
+                $(this).focus();
+            }, 1);
+            return;
+        }
+
         let $t = $(this);
         let txt = $t.text(), oldtxt = $t.data("oldtxt");
         var reg1 = new RegExp("[\\[\\]:\\?*\/'\"]");
@@ -279,6 +291,7 @@ export function initialSheetBar(){
         let $t = $(this);
         if (kcode == keycode.ENTER) {
             let index = getSheetIndex(Store.currentSheetIndex);
+            oldSheetFileName = Store.luckysheetfile[index].name || oldSheetFileName; 
             Store.luckysheetfile[index].name = $t.text();
             $t.attr("contenteditable", "false");
         }

src/locale/en.js

@@ -9512,6 +9512,7 @@ export default {
         noHide:"Can't hide, at least keep one sheet tag",
         chartEditNoOpt:"This operation is not allowed in chart editing mode!",
         sheetNameSpecCharError:"The name cannot contain:[ ] : \ ? * / ' \"",
+        sheetNamecannotIsEmptyError:"Sheet name cannot be empty"
     },
     conditionformat: {
         conditionformat_greaterThan: 'Conditionformat-GreaterThan',

src/locale/es.js

@@ -9510,6 +9510,7 @@ export default {
         noHide:"No se puede ocultar, al menos conserva una etiqueta de hoja",
         chartEditNoOpt:"¡Esta operación no está permitida en el modo de edición de gráficos!",
         sheetNameSpecCharError:"El nombre no puede contener:[ ] : \ ? * / ' \"",
+        sheetNamecannotIsEmptyError:"El nombre de la hoja no puede estar vacío"
     },
     conditionformat: {
         conditionformat_greaterThan: 'Conditionformat-GreaterThan',

src/locale/zh.js

@@ -9755,6 +9755,7 @@ export default {
         noHide:"不能隐藏, 至少保留一个sheet标签",
         chartEditNoOpt:"图表编辑模式下不允许该操作！",
         sheetNameSpecCharError:"名称不能包含:[ ] : \ ? * / ' \"",
+        sheetNamecannotIsEmptyError:"名称不能为空"
     },
     conditionformat: {
         conditionformat_greaterThan: '条件格式——大于',