Selenium chrome webdriver 使用浏览器命令放大

Question

I am in a project that is bounded to use internal webdriverservice which contains some of the webdriver functions.

And it's not compatible to build together with org.openqa.selenium.WebDriver;

@Component
public class TableauReportingPage {

@Autowired
private BrowserCommands browserCommands;

@Autowired
private WebDriverService webDriverService;

//@Autowired    //note this webdriver is comment out, 
//import import org.openqa.selenium.WebDriver failed to build under the current project
//private WebDriver webDriver;


public void openExistingResource(String url) throws Exception{
    //the method below is working to open the url
    browserCommands.goTo(url);
    Thread.sleep(40000);

   }

public File getScreenshot(){
    try {
        System.out.println("whats going on??? " + browserCommands.getCurrentUrl());
        for(int i=0; i<3; i++) {
            browserCommands.findElementBy(By.tagName("html")).sendKeys(Keys.chord(Keys.CONTROL, Keys.SUBTRACT));
            System.out.println(i);
        }
        Thread.sleep(10000);
    } catch (InterruptedException e) {
        e.printStackTrace();
    }
    //this method below is working to take screenshot, 
    //however the chrome size is not maximize and tableau report only took half report screenshot size. 
    //That's why im trying to zoom out chrome browser before taking screenshot.     
    return browserCommands.getScreenshot();
}
}

this is the piece of code I tried.

browserCommands.findElementBy(By.tagName("html")).sendKeys(Keys.chord(Keys.CONTROL, Keys.SUBTRACT));

did nothin, it didn't trigger the zoom out. but the previous piece:

System.out.println("whats going on??? " + browserCommands.getCurrentUrl());

Did print the url that means the object is valid and methods are working properly.

What is wrong with the keys.subtract() ? why nothing happen and no errors?

the selenium method page reference

By the way this is the error I got from using the autowire Webdriver selenium or JavascriptExecutor:

[ERROR] Feature: Data analytics reporting features  Time elapsed: 2.081 s  <<< ERROR!
java.lang.IllegalStateException: Failed to load ApplicationContext

Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'tableauReportingPage': Unsatisfied dependency expressed through field 'chromeDriver'; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'org.openqa.selenium.chrome.ChromeDriver' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)} Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'org.openqa.selenium.chrome.ChromeDriver' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}

Answer 1

You can use JavascriptExecutor for this task,

JavascriptExecutor executor = (JavascriptExecutor)driver;
executor.executeScript("document.body.style.zoom = '0.90'");

If you need to zoom out multiple times, just loop through as follows.

    float i = 1;
    while(i>0.5) {
        i -= 0.1;
        System.out.println(i);
        JavascriptExecutor executor = (JavascriptExecutor)driver;
        executor.executeScript("document.body.style.zoom = '" + i +"'");
    }