Preventing double click on google app script - google-apps-script

Question

When I make double click the form submitted twice. It creates duplicated rows. How can I prevent double click ?
Thank you!
function doGet(e) {
//Logger.log( Utilities.jsonStringify(e) );
if (!e.parameter.page) {
// When no specific page requested, return "home page"
return HtmlService.createTemplateFromFile('employee').evaluate()
.setTitle('care backup').setSandboxMode(HtmlService.SandboxMode.NATIVE);
}
// else, use page parameter to pick an html file from the script
return HtmlService.createTemplateFromFile(e.parameter['page']).evaluate()
.setTitle('care').setSandboxMode(HtmlService.SandboxMode.NATIVE);
}

Answer 1

I have not tested this, but just an option- also Set a time based trigger to run function reset every so often?
var recentSubmit = 0;
function doGet(e) {
//Logger.log( Utilities.jsonStringify(e) );
if (recentSubmit = 0){
if (!e.parameter.page) {
var recentSubmit = 1;
// When no specific page requested, return "home page"
return HtmlService.createTemplateFromFile('employee').evaluate()
.setTitle('care backup').setSandboxMode(HtmlService.SandboxMode.NATIVE);
}
// else, use page parameter to pick an html file from the script
return HtmlService.createTemplateFromFile(e.parameter['page']).evaluate()
.setTitle('care').setSandboxMode(HtmlService.SandboxMode.NATIVE);
}
Logger.log("Submitted a form to recently, try again later...");
}
function reset() {
var recentSubmit = 0;
}

Answer 2

You can try using the createClientHandler.forEventSource().setEnabled(false). It can disable the submit button. It's deprecated but it still works for now.
Full code implementation sample is found in this SO post:
function onOpen() {
var app = UiApp.createApplication();
app.setTitle('My Title');
app.setHeight(150);
app.setWidth(300);
var form = app.createFormPanel();
var flow = app.createFlowPanel();
flow.add(app.createHidden("action", 'action'));
flow.add(app.createLabel('My Label'));
//Submit
var submit = app.createButton('Run', app.createServerHandler('notif').addCallbackElement(form)).setId('run');
var cliHandler = app.createClientHandler().setEnabled().setEnabled(false);
submit.addClickHandler(cliHandler);
flow.add(submit);
form.add(flow);
app.add(form);
var spreadsheet = SpreadsheetApp.getActiveSpreadsheet();
spreadsheet.show(app);
};
function notif(){
//DO NOTHING. JUST SHOW THE button is DISABLED.
}
button is greyed-out after clicking..