dotnet/src/WebDriver/Interactions/KeyUpAction.cs

// <copyright file="KeyUpAction.cs" company="WebDriver Committers">
// Copyright 2007-2011 WebDriver committers
// Copyright 2007-2011 Google Inc.
// Portions copyright 2011 Software Freedom Conservancy
//
// 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.
// </copyright>

using System;
using System.Collections.Generic;
using System.Text;
using OpenQA.Selenium.Interactions.Internal;

namespace OpenQA.Selenium.Interactions
{
    /// <summary>
    /// Defines an action for releasing a modifier key (Shift, Alt, or Control) on the keyboard.
    /// </summary>
    internal class KeyUpAction : SingleKeyAction, IAction
    {
        /// <summary>
        /// Initializes a new instance of the <see cref="KeyUpAction"/> class.
        /// </summary>
        /// <param name="keyboard">The <see cref="IKeyboard"/> to use in performing the action.</param>
        /// <param name="mouse">The <see cref="IMouse"/> to use in setting focus to the element on which to perform the action.</param>
        /// <param name="actionTarget">An <see cref="ILocatable"/> object providing the element on which to perform the action.</param>
        /// <param name="key">The modifier key (<see cref="Keys.Shift"/>, <see cref="Keys.Control"/>, <see cref="Keys.Alt"/>) to use in the action.</param>
        public KeyUpAction(IKeyboard keyboard, IMouse mouse, ILocatable actionTarget, string key)
            : base(keyboard, mouse, actionTarget, key)
        {
        }

        #region IAction Members
        /// <summary>
        /// Performs this action.
        /// </summary>
        public void Perform()
        {
            this.FocusOnElement();
            this.Keyboard.ReleaseKey(this.Key);
        }

        #endregion
    }
}