I switched to Firefox and it worked for me with the following code. But at the moment this is not the case as selenium does not work perfectly with my Firefox version 47, see https://github.com/SeleniumHQ/selenium/issues/2257 Therefore I can not check this code right now, but for the last time I managed to get screenshots of the retina:
package de.kicktipp.screenshots.stackoverflow; import java.awt.Image; import java.awt.image.BufferedImage; import java.io.File; import java.io.IOException; import java.util.ArrayList; import javax.imageio.ImageIO; import org.openqa.selenium.Dimension; import org.openqa.selenium.JavascriptExecutor; import org.openqa.selenium.WebDriver; import org.openqa.selenium.firefox.FirefoxBinary; import org.openqa.selenium.firefox.FirefoxDriver; import org.openqa.selenium.firefox.FirefoxProfile; public class ScreenshotMaker { private PhoneList phoneList = new PhoneList(); private static final String HOST = "https://m.kicktipp.de"; private static final String PATH = "/"; private File resultDirectory; private int filenumber = 0; public static void main ( String[] args ) throws Exception { ScreenshotMaker screenshotMaker = new ScreenshotMaker(); screenshotMaker.run(); } public WebDriver getDriver ( Phone phone, Display display ) { FirefoxProfile profile = new FirefoxProfile(); // profile.setPreference("layout.css.devPixelsPerPx", "2.0"); // Ansonsten erscheint ein hässliches Popup welches Reader Funktion // anbietet profile.setPreference("reader.parse-on-load.enabled", false); profile.setPreference("xpinstall.signatures.required", false); FirefoxBinary firefoxBinary = new FirefoxBinary(); firefoxBinary.setEnvironmentProperty("DISPLAY", display.getDisplayNumberString()); FirefoxDriver firefoxDriver = new FirefoxDriver(firefoxBinary, profile); firefoxDriver.manage().window().setSize(new Dimension(phone.getWidth(), display.getHeight())); return firefoxDriver; } private void run ( ) throws Exception { mkdir(); for (Phone phone : phoneList) { WebDriver driver = null; Display display = null; try { display = new Display(phone.getDpiFaktor()); driver = getDriver(phone, display); System.out.println(phone.getName()); filenumber = 0; System.out.println(""); System.out.println("Generating Screenshots for " + phone.getName()); System.out.println("-----------------------------------------------------------------------------"); driver.get(HOST + "/"); shot(display, driver, PATH, phone); } finally { if (driver != null) { driver.quit(); } if (display != null) { display.shutdown(); } } } System.out.println(""); System.out.println("-----------------------------------------------------------------------------"); System.out.println("Finished."); } private void mkdir ( ) throws IOException { File targetDir = targetDir(); resultDirectory = new File(targetDir, "results"); resultDirectory.mkdir(); System.out.println("Writing screenshots to " + resultDirectory.getCanonicalPath()); } public File targetDir ( ) { String relPath = getClass().getProtectionDomain().getCodeSource().getLocation().getFile(); File targetDir = new File(relPath + "../.."); if (!targetDir.exists()) { targetDir.mkdir(); } return targetDir; } private void shot ( Display display, WebDriver driver, String path, Phone phoneSpec ) throws Exception { String url = getUrl(path); driver.get(url); scrollToRemoveScrollbars(driver); // Selenium screenshot doesn't work, we are dumping the framebuffer // directly File srcFile = display.captureScreenshot(); moveFile(srcFile, phoneSpec); } private void scrollToRemoveScrollbars ( WebDriver driver ) throws Exception { JavascriptExecutor js = (JavascriptExecutor) driver; js.executeScript("window.scrollTo(0,20);"); js.executeScript("window.scrollTo(0,0);"); Thread.sleep(800); } private String getUrl ( String path ) { StringBuffer url = new StringBuffer(HOST); url.append(path); return url.toString(); } private void moveFile ( File srcFile, Phone phone ) throws Exception { String filename = phone.getFilename(filenumber); File file = new File(resultDirectory, filename); if (file.exists()) { file.delete(); } crop(srcFile, file, phone); System.out.println(filename); } private void crop ( File srcFile, File targetFile, Phone phone ) throws Exception { int width = phone.getPixelWidth(); int height = phone.getPixelHeight(); int yStart = 71 * phone.getDpiFaktor(); Image orig = ImageIO.read(srcFile); BufferedImage bi = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB); bi.getGraphics().drawImage(orig, 0, 0, width, height, 0, yStart, width, height + yStart, null); ImageIO.write(bi, "png", targetFile); } } class PhoneList extends ArrayList<Phone> { private static final Phone IPHONE_4 = new Phone(320, 460, "iphone4", 2); private static final Phone IPHONE_5 = new Phone(320, 548, "iphone5", 2); private static final Phone IPHONE_6 = new Phone(375, 667, "iphone6", 2); private static final Phone IPAD = new Phone(1024, 748, "ipad", 2); private static final Phone IPHONE_6_PLUS = new Phone(414, 736, "iphone6plus", 3); private static final Phone AMAZON = new Phone(480, 800, "amazon", 1); public PhoneList () { add(AMAZON); add(IPHONE_4); add(IPHONE_5); add(IPHONE_6); add(IPAD); add(IPHONE_6_PLUS); } } class Phone { private int width = 0; private int height = 0; private String name = ""; private int dpiFaktor = 2; public Phone ( int width, int height, String name, int dpiFaktor ) { this.width = width; this.height = height; this.name = name; this.dpiFaktor = dpiFaktor; } public int getWidth ( ) { return width; } public int getHeight ( ) { return height; } public int getPixelWidth ( ) { return width * dpiFaktor; } public int getPixelHeight ( ) { return height * dpiFaktor; } public int getDpiFaktor ( ) { return dpiFaktor; } public String getName ( ) { return name; } public Dimension getDimension ( ) { return new Dimension(width, height); } public String getFilename ( int number ) { String dimension = getPixelWidth() + "x" + getPixelHeight(); return name + "-" + dimension + "-" + number + ".png"; } } class Display { private static final int HEIGHT = 5000; private static final int WIDTH = 5000; private static String XVFB = "/usr/bin/Xvfb"; private static String DISPLAY_NUMBER_STRING = ":99"; private static String SCREEN_SIZE = " -screen 0 " + WIDTH + "x" + HEIGHT + "x24"; private static String XVFB_COMMAND = XVFB + " " + DISPLAY_NUMBER_STRING + SCREEN_SIZE + " -dpi "; private static int baseDpi = 100; private Process p; public Display ( int dpiFaktor ) throws IOException, InterruptedException { checkExecutable(); int dpi = baseDpi * dpiFaktor; String cmd = XVFB_COMMAND + dpi; p = Runtime.getRuntime().exec(cmd); Thread.sleep(1000); try { int exitValue = p.exitValue(); String msgTemplate = "ERROR: Exit Value: %s. Display konnte nicht gestartet werden. Läuft ein Display noch auf %s ?"; String msg = String.format(msgTemplate, exitValue, DISPLAY_NUMBER_STRING); throw new IllegalStateException(msg); } catch (IllegalThreadStateException e) { // Das ist gut, der Prozess ist noch nicht beendet. System.out.println("Switched on display at " + dpi + "dpi with command " + cmd); return; } } private void checkExecutable ( ) { File file = new File(XVFB); if (!file.canExecute()) { System.err.println("Xvfb is not installed at " + XVFB); System.err.println("Install Xvfb by runing"); System.err.println("apt-get install xvfb"); } } public File captureScreenshot ( ) throws IOException, InterruptedException { File tempFile = File.createTempFile("screenshots", ".png"); String absolutePath = tempFile.getAbsolutePath(); String cmd = "import -window root " + absolutePath; String[] env = new String[] { "DISPLAY=" + DISPLAY_NUMBER_STRING }; Process exec = Runtime.getRuntime().exec(cmd, env); exec.waitFor(); return tempFile; } public void shutdown ( ) throws IOException, InterruptedException { p.destroy(); try { Thread.sleep(1000); int exitValue = p.exitValue(); System.out.println("Display was switched off. ExitValue: " + exitValue); } catch (IllegalThreadStateException e) { // Das ist nicht gut, der Prozess sollte beendet sein. // Kill it: p = Runtime.getRuntime().exec("pkill Xvfb"); } } public String getDisplayNumberString ( ) { return DISPLAY_NUMBER_STRING; } public int getHeight ( ) { return HEIGHT; } }
And this is my pom:
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>de.kicktipp</groupId> <artifactId>screenshots</artifactId> <version>0.0.1-SNAPSHOT</version> <name>screenshots</name> <properties> <jdk.version>1.7</jdk.version> <maven.version>3.0</maven.version> <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <selenium-java.version>2.53.1</selenium-java.version> </properties> <build> <plugins> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-compiler-plugin</artifactId> <configuration> <source>${jdk.version}</source> <target>${jdk.version}</target> </configuration> </plugin> </plugins> </build> <dependencies> <dependency> <groupId>org.seleniumhq.selenium</groupId> <artifactId>selenium-java</artifactId> <version>${selenium-java.version}</version> </dependency> </dependencies> </project>