Selenium-webdriver / Javascript：如何滚动页面？

Question

I'm using the Javascript API to selenium-webdriver and I would like to scroll/move down through a page slowly to allow for visual inspection.

I know the following will jump me to a link at the end of my page:

  return driver.findElement({linkText: 'All rights reserved'}).click()

However, I'd like to review the stuff in between, as I watch selenium do its thing.

Is it possible to scroll incrementally through a page? (eg 10%, 20%, 30% etc.). Or is there another technique to effectively do a "slow scroll"?

Answer 1

This can be achieved in two ways- 1.Scroll the page in slow motion- you can change time in Thread.sleep as per requirement.

JavascriptExecutor js = (JavascriptExecutor)driver;
for (int i = 0;; i++) 
{
    if(i >=60)
    {
            break;
        }
 js.executeScript("window.scrollBy(0,800)", ""); //800 is Y coordinate. This can be changed
     Thread.sleep(3000);
}

2.Scroll to element position before performing operation on it-

Point p = driver.findElement(By.xpath("Value")).getLocation();//get element position
((JavascriptExecutor)driver).executeScript("window.scrollBy(0,"+(p.getY())+");");