org.openqa.selenium.TakesScreenshot.java Source code

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Here is the source code for org.openqa.selenium.TakesScreenshot.java

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// to you under the Apache License, Version 2.0 (the
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// with the License.  You may obtain a copy of the License at
//
//   http://www.apache.org/licenses/LICENSE-2.0
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package org.openqa.selenium;

/**
 * Indicates a driver or an HTML element that can capture a screenshot and store it in different ways.
 * <p>
 * Example usage:
 *
 * <pre>
 * File screenshotFile = ((TakesScreenshot) driver).getScreenshotAs(OutputType.FILE);
 * String screenshotBase64 = ((TakesScreenshot) element).getScreenshotAs(OutputType.BASE64);
 * </pre>
 *
 * @see OutputType
 */
public interface TakesScreenshot {
    /**
     * Capture the screenshot and store it in the specified location.
     * <p>
     * For a W3C-conformant WebDriver or WebElement, this behaves as stated in
     * <a href="https://w3c.github.io/webdriver/#screen-capture">W3C WebDriver specification</a>.
     * <p>
     * For a non-W3C-conformant WebDriver, this makes a best effort depending on the browser to return
     * the following in order of preference:
     * <ul>
     *   <li>Entire page</li>
     *   <li>Current window</li>
     *   <li>Visible portion of the current frame</li>
     *   <li>The screenshot of the entire display containing the browser</li>
     * </ul>
     * For a non-W3C-conformant WebElement extending TakesScreenshot, this makes a best effort
     * depending on the browser to return the following in order of preference:
     * <ul>
     *   <li>The entire content of the HTML element</li>
     *   <li>The visible portion of the HTML element</li>
     * </ul>
     *
     * @param <X> Return type for getScreenshotAs.
     * @param target target type, @see OutputType
     * @return Object in which is stored information about the screenshot.
     * @throws WebDriverException on failure.
     * @throws UnsupportedOperationException if the underlying implementation does not support
     * screenshot capturing.
     */
    <X> X getScreenshotAs(OutputType<X> target) throws WebDriverException;
}