[SSE] Disable adding formula from the cell editor line only when input text to the cell.

apps/spreadsheeteditor/main/app/controller/CellEditor.js

@@ -125,6 +125,7 @@ define([
                 this.api.isCEditorFocused = false;
                 this.editor.cellNameDisabled(false);
             }
+            this.editor.$btnfunc.toggleClass('disabled', state == Asc.c_oAscCellEditorState.editText);
         },
 
         onApiCellSelection: function(info) {
@@ -147,6 +148,7 @@ define([
 
         onCellsRange: function(status) {
             this.editor.cellNameDisabled(status != Asc.c_oAscSelectionDialogType.None);
+            this.editor.$btnfunc.toggleClass('disabled', status != Asc.c_oAscSelectionDialogType.None);
         },
 
         onLayoutResize: function(o, r) {

apps/spreadsheeteditor/main/app/view/CellEditor.js

@@ -102,7 +102,6 @@ define([
 
         cellNameDisabled: function(disabled){
             (disabled) ? this.$cellname.attr('disabled', 'disabled') : this.$cellname.removeAttr('disabled');
-            this.$btnfunc.toggleClass('disabled', disabled);
             this.btnNamedRanges.setDisabled(disabled);
         },