java - Handling a popup window using selenium

Question

I have a circumstance in which clicking a link webpage opens a popup window. And after the popup window opens the focus is in the popup window and master window is disabled. And i am unable to get the control transferred to the popup window. Please have a look at the following code.

driver.findElement(By.linkText("Click me")).click();// when this line of code is reached then a popup window opens.

System.out.println("After Clicking me"); // After the popup window opens this line of code is never executed.

I am unable to transfer the control from parent window to popup window. I am aware of the following command.

driver.switchTo().window("popup window");

But its not helping much. please help me.

Answer 1

driver.findElement(By.linkText("Click me")).click();// when this line of code is reached then a popup window opens.

System.out.println("After Clicking me"); // After the popup window opens this line of code is never executed.

The line of code is never executed because the process is waiting for the popup to be handled.

getWindowHandles() works properly in this situation.

Example:

//handle of the master window before clicking the link
String master = driver.getWindowHandle();

driver.findElement(By.linkText("Click me")).click();

//logic for waiting for the popup, checking the size to become greater than 1 or breaking after sometime to avoid the infinite loop.
int timeCount = 1;

do
{
   driver.getWindowHandles();
   Thread.sleep(200);
   timeCount++;
   if ( timeCount > 50 ) 
   {
       break;
   }
}
while ( driver.getWindowHandles().size == 1 );

//Assigning the handles to a set
Set<String> handles = driver.getWindowHandles();
//Switching to the popup window.
for ( String handle : handles )
{
    if(!handle.equals(master))
    {
         driver.switchTo().window(handle);
    }
}

Now driver is switched to the popup window. If the popup window has a frame then you need to switch to the frame before identifying elements in it.