How can I check a checkbox on the popup window? Selenium Webdriver - selenium-webdriver

Question

When a popup window open how can I handle on this window?
driver.switchTo().defaultContent();
MenuUtil.doClickMenu(selenium, driver, "Access 2G", "Cảnh báo", "Giám sát cảnh báo BTS");
ControlBase.waitForLoadOk(5);
CheckBoxUtil.doCheckByXpath(selenium, "//*[#id='listRow1']/tbody/tr[1]/td[18]/input");
ControlBase.waitForLoadOk(5);
ButtonUtil.doClickByLabel(driver, "Cập nhật");
ControlBase.waitForLoadOk(5);
CheckBoxUtil.doCheckByXpath(selenium, "//*[#id='txtName']");

Answer 1

Generally I use the Selenium IDE. Here you can 'click & record', which allows you to then get the XPath of the JS pop-up alert box.
I would suggest you first check for the alert box showing up with something such as this:
if (selenium.isAlertPresent()){
System.out.println(selenium.getAlert()); //show alert text message
selenium.click("id=alertbox_ok_btn"); //click OK on alert box
}
Download Selenium IDE from here: http://docs.seleniumhq.org/download/
Also, refer to Selenium's documentation for Java here: http://selenium.googlecode.com/svn/trunk/docs/api/java/index.html

Answer 2

Try the below code written in JAVA
WebDriver driver = new FirefoxDriver();
driver.manage().timeouts().implicitlyWait(30, TimeUnit.SECONDS);
driver.get("Your application URL");
String parentWindow = driver.getWindowHandle();
//click on the link/box/whatever to open the pop up
driver.findElement(By.xpath("")).click();
Set <String> popupWindows = driver.getWindowHandles();
for(String popup : popupWindows){
driver.switchTo().window(popup);
//you can use getTitle/getCurrentUrl to match with title/url of the pop up
if(driver.getTitle().equals("actual title on the pop up")){
break;
}
}
//Write a code to check a checkbox
//Close the pop up
driver.close();
//Come back to the parent window
driver.switchTo().window(parentWindow);
//Code if you want to test/do something else
driver.close();