/
TakeScreenshotExample.java
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/
TakeScreenshotExample.java
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package com.github.kklisura.cdt.examples;
/*-
* #%L
* cdt-examples
* %%
* Copyright (C) 2018 - 2021 Kenan Klisura
* %%
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* #L%
*/
import com.github.kklisura.cdt.launch.ChromeLauncher;
import com.github.kklisura.cdt.protocol.commands.Page;
import com.github.kklisura.cdt.services.ChromeDevToolsService;
import com.github.kklisura.cdt.services.ChromeService;
import com.github.kklisura.cdt.services.types.ChromeTab;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.Base64;
/**
* Takes a page screenshot.
*
* @author Kenan Klisura
*/
public class TakeScreenshotExample {
public static void main(String[] args) {
// Create chrome launcher.
final ChromeLauncher launcher = new ChromeLauncher();
// Launch chrome either as headless (true) or regular (false).
final ChromeService chromeService = launcher.launch(false);
// Create empty tab ie about:blank.
final ChromeTab tab = chromeService.createTab();
// Get DevTools service to this tab
final ChromeDevToolsService devToolsService = chromeService.createDevToolsService(tab);
// Get individual commands
final Page page = devToolsService.getPage();
page.onLoadEventFired(
event -> {
System.out.println("Taking screenshot...");
dump("screenshot.png", page.captureScreenshot());
System.out.println("Done!");
devToolsService.close();
});
// Enable page events.
page.enable();
// Navigate to github.com.
page.navigate("http://github.com");
devToolsService.waitUntilClosed();
}
private static void dump(String fileName, String data) {
FileOutputStream fileOutputStream = null;
try {
File file = new File(fileName);
fileOutputStream = new FileOutputStream(file);
fileOutputStream.write(Base64.getDecoder().decode(data));
} catch (IOException e) {
e.printStackTrace();
} finally {
if (fileOutputStream != null) {
try {
fileOutputStream.flush();
fileOutputStream.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
}