// <copyright file="ISearchContext.cs" company="Selenium Committers">
// Licensed to the Software Freedom Conservancy (SFC) under one
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// regarding copyright ownership.  The SFC licenses this file
// 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
//
// Unless required by applicable law or agreed to in writing,
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using System;
using System.Collections.ObjectModel;

#nullable enable

namespace OpenQA.Selenium
{
    /// <summary>
    /// Defines the interface used to search for elements.
    /// </summary>
    public interface ISearchContext
    {
        /// <summary>
        /// Finds the first <see cref="IWebElement"/> using the given method.
        /// </summary>
        /// <param name="by">The locating mechanism to use.</param>
        /// <returns>The first matching <see cref="IWebElement"/> on the current context.</returns>
        /// <exception cref="ArgumentNullException">If <paramref name="by" /> is <see langword="null"/>.</exception>
        /// <exception cref="NoSuchElementException">If no element matches the criteria.</exception>
        IWebElement FindElement(By by);

        /// <summary>
        /// Finds all <see cref="IWebElement">IWebElements</see> within the current context
        /// using the given mechanism.
        /// </summary>
        /// <param name="by">The locating mechanism to use.</param>
        /// <returns>A <see cref="ReadOnlyCollection{T}"/> of all <see cref="IWebElement">WebElements</see>
        /// matching the current criteria, or an empty list if nothing matches.</returns>
        ReadOnlyCollection<IWebElement> FindElements(By by);
    }
}
