Selenium Webdriver (Java) Creation a class for Scrolling

Question

I'm trying to create a class for different kind of scrolls (Scroll up, down, bottom of page, Etc), but I can't do it work.

import org.openqa.selenium.JavascriptExecutor;
import org.openqa.selenium.chrome.ChromeDriver;

public class ScrollPage {

    public static void scrolldown(String element) throws Exception {

        System.setProperty("webdriver.chrome.driver", "C:\\JAVA\\DRIVER\\chromedriver.exe");
        ChromeDriver driver = new ChromeDriver();       

        //Scroll 1/4 página
        JavascriptExecutor jse1 = (JavascriptExecutor) driver;
        jse1.executeScript("scroll(0,250);");
        }
    /*
        public static void scrolldown2(String element) throws Exception {       
        //Scroll hasta la mitad
        JavascriptExecutor jse2 = (JavascriptExecutor) driver;
        jse2.executeScript("scroll(0,500);");
        }

        public static void scrolldown3(String element) throws Exception {       
        //Scroll hasta el final
        JavascriptExecutor jse3 = (JavascriptExecutor) driver;
        jse3.executeScript("scroll(0,1000);");
        }
   */   
        //Otra forma de Scroll hasta el final
 /*     JavascriptExecutor jse = (JavascriptExecutor)driver;
        jse.executeScript("window.scrollTo(0,Math.max"
                + "(document.documentElement.scrollHeight,"
                + "document.body.scrollHeight,document.documentElement.clientHeight));");

    public static void scrollup(String element) throws Exception {  
        //Scroll hasta arriba
        JavascriptExecutor jse4 = (JavascriptExecutor) driver;
        jse4.executeScript("scroll(1000,0);");
        }

        public static void slowmotion (String element) throws Exception {   
        //Scroll en cámara lenta
        for (int second = 0;; second++) {
            if(second >=60){
                break;
            }
        ((JavascriptExecutor) driver).executeScript("window.scrollBy(0,1000)", "");
        }


    }
*/
}

After that, in another class, I want to call a specific scroll:

ScrollPage.scrolldown();

Please, help me.

Answer 1

I see a lot of errors in your code:

1. You are messing driver instantiation within scrolldown method. Remove all non-scroll related stuff from it.
2. For scrolling to work, obviously, some scrollable web-page should be opened. In your scroll method no page is opened - just blank browser start page. Use driver.get(<some url>) method for that
3. Once scrollable page is opened - call (JavascriptExecutor)driver.executeScript("window.scrollBy(0,250)", ""); to scroll window by 250 pixels

Answer 2

This isn't a Selenium Java issue, this has to do with object oriented programming. Are you familiar with how java classes work?

1. Create a new class, called something like ScrollMethods, and put all your scroll methods in that class.

2. In your test, then you just need to instantiate that class:

   ScrollMethods scrollMethods = new ScrollMethods();

Now you should be able call the Scroll Methods within your test class.

Answer 3

You have used wrong java Script command to Scroll the window.

Try This :-

 JavascriptExecutor jse1 = (JavascriptExecutor) driver;
        jse1.executeScript("window.scroll(0,250);");

Answer 4

I had some issues in my code.

The right one would be next:

 package Util; import org.openqa.selenium.By; import org.openqa.selenium.JavascriptExecutor; import org.openqa.selenium.chrome.ChromeDriver; public abstract class ScrollPage { public static void doScrollDown250(ChromeDriver driver)throws Exception{ JavascriptExecutor jse = driver; jse.executeScript("scroll(0, 250);"); } public static void doScrollDown500(ChromeDriver driver)throws Exception { JavascriptExecutor jse2 = (JavascriptExecutor) driver; jse2.executeScript("scroll(0,500);"); } public static void doScrollUp(ChromeDriver driver)throws Exception { JavascriptExecutor jse2 = (JavascriptExecutor) driver; jse2.executeScript("scroll(0,000);"); } public static void doScrolldown1000(ChromeDriver driver)throws Exception { JavascriptExecutor jse3 = (JavascriptExecutor) driver; jse3.executeScript("scroll(0,1000);"); } //Slow Motion Down public static void slowmotionDown(ChromeDriver driver) throws Exception { for (int second = 0;; second++) { if(second >=60){ break; } ((JavascriptExecutor) driver).executeScript("window.scrollBy(0,13)", ""); } } //Slow Motion Up public static void slowmotionUp(ChromeDriver driver) throws Exception { for (int second = 0;; second++) { if(second >=60){ break; } ((JavascriptExecutor) driver).executeScript("window.scrollBy(1000,13)", ""); } } //From Left to Right public static void Left2Right(ChromeDriver driver) throws Exception { JavascriptExecutor js = (JavascriptExecutor)driver; js.executeScript("window.scrollBy(2000,0)", ""); } //From Right to Left public static void Right2Left(ChromeDriver driver) throws Exception { JavascriptExecutor jsx = (JavascriptExecutor)driver; jsx.executeScript("window.scrollBy(-2000,0)", ""); } //Scroll Down the Element Web, in this case, Ver Detalles del Plan (Modify the Xpath) public static void WebElement (ChromeDriver driver) throws Exception{ ((JavascriptExecutor)driver).executeScript("arguments[0].scrollIntoView();", driver.findElement(By.xpath("//*[@id='option1']/div[1]/div[5]/a"))); } } 

After that, in another class, we will call any of these methods with this sentence:

ScrollPage.slowmotionDown(driver);
            Thread.sleep(3000);

Please remember declarate the imports and the ChromeDriver

import org.openqa.selenium.chrome.ChromeDriver;

import Util.ScrollPage; public class banner1 extends ScrollPage {

public static void main(String[] args) throws Exception {

    System.setProperty("webdriver.chrome.driver", "C:\\JAVA\\DRIVER\\chromedriver.exe");
    ChromeDriver driver = new ChromeDriver();   

Answer 5

For Scrollpage slowmotion down, the code is:

public static void slowmotionDown(InternetExplorerDriver driver) throws Exception {
        for (int second = 0;; second++) {
            if(second >=60){
                break;
            }
            ((JavascriptExecutor) driver).executeScript("window.scrollBy(0,13)", "");
        }
    }

For Scrollpage slowmotion up, the code is:

 public static void slowmotionUp(InternetExplorerDriver driver) throws Exception {
        for (int second = 0;; second++) {
            if(second >=60){
                break;
            }
            ((JavascriptExecutor) driver).executeScript("window.scrollBy(1000,-13)", "");
        }
    }

This is working fine.