dotnet/src/webdriver/Support/WebDriverWait.cs

// <copyright file="WebDriverWait.cs" company="Selenium Committers">
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//
//   http://www.apache.org/licenses/LICENSE-2.0
//
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using System;

namespace OpenQA.Selenium.Support.UI;

/// <summary>
/// Provides the ability to wait for an arbitrary condition during test execution.
/// </summary>
/// <example>
/// <code>
/// IWait wait = new WebDriverWait(driver, TimeSpan.FromSeconds(3))
/// IWebElement element = wait.Until(driver => driver.FindElement(By.Name("q")));
/// </code>
/// </example>
public class WebDriverWait : DefaultWait<IWebDriver>
{
    /// <summary>
    /// Initializes a new instance of the <see cref="WebDriverWait"/> class.
    /// </summary>
    /// <param name="driver">The WebDriver instance used to wait.</param>
    /// <param name="timeout">The timeout value indicating how long to wait for the condition.</param>
    public WebDriverWait(IWebDriver driver, TimeSpan timeout)
        : this(SystemClock.Instance, driver, timeout, DefaultSleepTimeout)
    {
    }

    /// <summary>
    /// Initializes a new instance of the <see cref="WebDriverWait"/> class.
    /// </summary>
    /// <param name="clock">An object implementing the <see cref="IClock"/> interface used to determine when time has passed.</param>
    /// <param name="driver">The WebDriver instance used to wait.</param>
    /// <param name="timeout">The timeout value indicating how long to wait for the condition.</param>
    /// <param name="sleepInterval">A <see cref="TimeSpan"/> value indicating how often to check for the condition to be true.</param>
    /// <exception cref="ArgumentNullException">If <paramref name="clock"/> or <paramref name="driver"/> are <see langword="null"/>.</exception>
    public WebDriverWait(IClock clock, IWebDriver driver, TimeSpan timeout, TimeSpan sleepInterval)
        : base(driver, clock)
    {
        this.Timeout = timeout;
        this.PollingInterval = sleepInterval;
        this.IgnoreExceptionTypes(typeof(NotFoundException));
    }

    private static TimeSpan DefaultSleepTimeout => TimeSpan.FromMilliseconds(500);
}