[form] Add method to check if the form is signed

api.js

@@ -309,7 +309,7 @@ window["AscOForm"] = window.AscOForm = AscOForm;
 		oLogicDocument.RemoveTextSelection();
 		if (!oLogicDocument.IsSelectionLocked(AscCommon.changestype_Paragraph_Content))
 		{
-			oLogicDocument.StartAction(AscDFH.historydescription_Document_AddContentControlList, undefined, undefined, isComboBox);
+			oLogicDocument.StartAction(AscDFH.historydescription_Document_AddContentControlList);
 
 			var oCC;
 			if (isComboBox)
@@ -327,6 +327,7 @@ window["AscOForm"] = window.AscOForm = AscOForm;
 			if (oCC && oCommonPr)
 				oCC.SetContentControlPr(oCommonPr);
 
+			oLogicDocument.AddMacroData(AscDFH.historydescription_Document_AddContentControlList, {isComboBox : isComboBox});
 			oLogicDocument.Recalculate();
 			oLogicDocument.UpdateInterface();
 			oLogicDocument.UpdateSelection();
@@ -344,7 +345,7 @@ window["AscOForm"] = window.AscOForm = AscOForm;
 		oLogicDocument.RemoveTextSelection();
 		if (!oLogicDocument.IsSelectionLocked(AscCommon.changestype_Paragraph_Content))
 		{
-			oLogicDocument.StartAction(AscDFH.historydescription_Document_AddContentControlList, undefined, undefined, true);
+			oLogicDocument.StartAction(AscDFH.historydescription_Document_AddContentControlDatePicker, undefined, undefined, true);
 			
 			let dateTimePr = null;
 			let formPr     = null;

apiPlugins.js

@@ -168,6 +168,29 @@
 
 		return "";
 	};
+	/**
+	 * Checks whether the specified form has been digitally signed.
+	 * @memberof Api
+	 * @typeofeditors ["CDE"]
+	 * @alias IsFormSigned
+	 * @returns {boolean} Returns true if the form is signed, false otherwise.
+	 * @since 9.3.0
+	 * @see office-js-api/Examples/Plugins/Forms/Api/Methods/IsFormSigned.js
+	 */
+	Api.prototype["pluginMethod_IsFormSigned"] = function()
+	{
+		let signatures = this.signatures;
+		if (!signatures || !Array.isArray(signatures))
+			return false;
+		
+		for (let i = 0; i < signatures.length; ++i)
+		{
+			if (signatures[i].isForm)
+				return true;
+		}
+		
+		return false;
+	};
 
 })(window);
 

oform/OForm.js

@@ -718,8 +718,6 @@
 		if (!logicDocument)
 			return;
 		
-		this.onEndAction();
-		
 		logicDocument.UpdateInterface();
 		logicDocument.FinalizeAction();
 	};