Selenium chrome webDriver - 关注最新打开的新标签java

Question

I have problem while trying to get focus on the latest new tab i'v opened with selenium web driver.

in some mysterious way, when i try to change between 2 tabs it works, but when i'm trying to do this with 4 tabs it always get focus on the 3rd tab.

here is the code of the function that gets WebDriver element:

ArrayList tabs = new ArrayList(driver.getWindowHandles());
    System.out.println(tabs);
    System.out.println(tabs.get(tabs.size() -1));
    driver.switchTo().window((String) tabs.get(tabs.size() - 1));

and here is the out put when i'm printing the tabs:

[CDwindow-(43C81B1D7B7C666BFBFB339971ADEE0F), CDwindow-(CDD5D45D021E698DD005BC2AD6201714), CDwindow-(33FB208B51A8DD5F7DB947C7B0BAB9DD), CDwindow-(4B50A8C4074BEDB41152003DED37FB32)]
CDwindow-(4B50A8C4074BEDB41152003DED37FB32)

as you can see the first row is the all the ArrayList. and the second row is only the last tab that i want to get focus on.

am i missing something here??

Answer 1

I fail to see the issue.

tabs holds a list of handles (which may or may not be in the order you see them in the browser). tabs.size() is returning 4 (4 tabs). so tabs.get(tabs.size() - 1)) is tabs.get(4 -1 ) or tabs.get(3) .

Since java is 0-indexed, tabs.get(3) is the last tab. And looking at the output above is correct; CDwindow-(4B50A8C4074BEDB41152003DED37FB32) .

Where is it going to the third tab; CDwindow-(33FB208B51A8DD5F7DB947C7B0BAB9DD)?

I find it easier to keep track of if you Map the windows to a name:

public static Map<String, String> tabs = new HashMap<String, String>();

With the first String being your own descriptor like "Admin", or "Facebook" and the second String is the WindowHandle. You will need to add the windows one by one to keep track of them.

tabs.put(handleName, handle);

But when you want to switch you can use:

driver.switchTo().window(tabs.get("Admin"));

And eliminate all confusion.

Answer 2

So, after a little bit of debugging - i just wrote an if statement the will stop on the page i want.

Set<String> handles = driver.getWindowHandles();
    String currentHandle = driver.getWindowHandle();
    for (String handle : handles) {
     if (!handle.equals(currentHandle)) {
         driver.switchTo().window(handle);
         if(whatImLookingFor)
             break;
     }
   }

the problem is solved for me, but i think it worth to try to understand this for future needs...