Handling Event in Web Driver:-

Event:-  if we perform any action in HTML Web Element or Page Context then event will be raised.

WebDriver provides different event method's and classes to perform event operation.
Classes for Event
Actions Class:-  this class is used to manage an event of HTML web pages using different event method.
WebDriver driver = new ChromeDriver();
Actions obj = new Actions(driver);
Action:-  it is used to handle a particular event method of web element which will work under Action Class.
Action ref = obj.eventmethod().build();
ref.perform();
Q)Create a script to get background color before mouseover and after mouseover on list item using hyperlink?
import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.chrome.ChromeDriver;
import org.openqa.selenium.interactions.Action;
import org.openqa.selenium.interactions.Actions;
public class ActionExample {
public static void main(String[] args) {
System.setProperty("webdriver.chrome.driver","c:\\chromedriver.exe");
WebDriver driver = new ChromeDriver();
driver.get("http://demo.guru99.com/test/newtours/");
WebElement ele = driver.findElement(By.linkText("Home"));
WebElement td = driver.findElement(By.xpath("/html/body/div[2]/table/tbody/tr/td[1]/table/tbody/tr/td/table/tbody/tr/td/table/tbody/tr[1]"));
String color = td.getCssValue("background-color");
System.out.print(color);
Actions obj = new Actions(driver);
Action ref = obj.moveToElement(ele).build();
ref.perform();
String color1 = td.getCssValue("background-color");
System.out.print(color1);
}
}

Q)CREATE AN AUTOMATION SCRIPT TO HANDLE MULTIPLE EVENTS UNDER PARTICULAR TEXTBOX.

import org.openqa.selenium.By;

import org.openqa.selenium.Keys;

import org.openqa.selenium.WebDriver;

import org.openqa.selenium.WebElement;

import org.openqa.selenium.chrome.ChromeDriver;

import org.openqa.selenium.interactions.Action;

import org.openqa.selenium.interactions.Actions;

public class MultipleActionExample {

public static void main(String[] args) {

System.setProperty("webdriver.chrome.driver","c:\\chromedriver.exe");

WebDriver driver = new ChromeDriver();

driver.get("http://shivaconceptsolution.com/ims/");

WebElement ele=driver.findElement(By.name("email"));

    Actions obj = new Actions(driver);

    Action ref = obj.moveToElement(ele).click().keyDown(ele,Keys.SHIFT).sendKeys(ele,"welcome").doubleClick(ele).contextClick().build();

    ref.perform();

}

}

Multiple Element Method for Web Driver:-

Method	Description
clickAndHold()	Clicks (without releasing) at the current mouse location.
contextClick()	Performs a context-click at the current mouse location. (Right Click Mouse Action)
doubleClick()	Performs a double-click at the current mouse location.
dragAndDrop(source, target)	Performs click-and-hold at the location of the source element, moves to the location of the target element, then releases the mouse. Parameters: source- element to emulate button down at. target- element to move to and release the mouse at.
dragAndDropBy(source, x-offset, y-offset)	Performs click-and-hold at the location of the source element, moves by a given offset, then releases the mouse. Parameters: source- element to emulate button down at. xOffset- horizontal move offset. yOffset- vertical move offset.
keyDown(modifier_key)	Performs a modifier key press. Does not release the modifier key - subsequent interactions may assume it's kept pressed. Parameters: modifier_key - any of the modifier keys (Keys.ALT, Keys.SHIFT, or Keys.CONTROL)
keyUp(modifier _key)	Performs a key release. Parameters: modifier_key - any of the modifier keys (Keys.ALT, Keys.SHIFT, or Keys.CONTROL)
moveByOffset(x-offset, y-offset)	Moves the mouse from its current position (or 0,0) by the given offset. Parameters: x-offset- horizontal offset. A negative value means moving the mouse left. y-offset- vertical offset. A negative value means moving the mouse down.
moveToElement(toElement)	Moves the mouse to the middle of the element. Parameters: toElement- element to move to.
release()	Releases the depressed left mouse button at the current mouse location
sendKeys(onElement, charsequence)	Sends a series of keystrokes onto the element. Parameters: onElement - element that will receive the keystrokes, usually a text field charsequence - any string value representing the sequence of keystrokes to be sent

Example of Drag and Drop
package scs;
import java.util.concurrent.TimeUnit;
import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.chrome.ChromeDriver;
import org.openqa.selenium.firefox.FirefoxDriver;
import org.openqa.selenium.interactions.Actions;
public class DraganddropExample {
public static void main(String[] args) throws InterruptedException {
System.setProperty("webdriver.chrome.driver","c:\\chromedriver.exe");
WebDriver driver = new ChromeDriver();
String URL = "https://demoqa.com/droppable/";
driver.get(URL);

// It is always advisable to Maximize the window before performing DragNDrop action
driver.manage().window().maximize();
driver.manage().timeouts().implicitlyWait(10000, TimeUnit.MILLISECONDS);
//Actions class method to drag and drop
Actions builder = new Actions(driver);
WebElement from = driver.findElement(By.id("draggable"));
WebElement to = driver.findElement(By.id("droppable"));
//Perform drag and drop
builder.dragAndDrop(from, to).perform();
//verify text changed in to 'Drop here' box
String textTo = to.getText();
if(textTo.equals("Dropped!")) {
System.out.println("PASS: Source is dropped to target as expected");
}else {
System.out.println("FAIL: Source couldn't be dropped to target as expected");
}
driver.close();
}
}