// IsVisible
/// <summary>
/// Indicates whether the element is visible or not.
/// See also https://blog.jquery.com/2009/02/20/jquery-1-3-2-released/#visible-hidden-overhauled
/// </summary>
/// <param name="handle">An <see cref="ElementHandle"/></param>
/// <returns><c>true</c> if the element is visible</returns>
public static async Task <bool> IsVisibleAsync(this ElementHandle handle)
{
handle.GuardFromNull();
return(await handle.EvaluateFunctionWithoutDisposeAsync <bool>("element => element.offsetWidth > 0 && element.offsetHeight > 0").ConfigureAwait(false));
}
// IsReadOnly
/// <summary>
/// Indicates whether the element is read-only or not.
/// </summary>
/// <param name="handle">An <see cref="ElementHandle"/></param>
/// <remarks><![CDATA[Elements: <input>, <textarea>]]></remarks>
/// <returns><c>true</c> if the element is read-only</returns>
public static async Task <bool> IsReadOnlyAsync(this ElementHandle handle)
{
handle.GuardFromNull();
return(await handle.EvaluateFunctionWithoutDisposeAsync <bool>("element => element.readOnly").ConfigureAwait(false));
}
// HasClass
/// <summary>
/// Indicates whether the element has the specified class or not.
/// </summary>
/// <param name="handle">An <see cref="ElementHandle"/></param>
/// <param name="className">The class name</param>
/// <returns><c>true</c> if the element has the specified class</returns>
public static async Task <bool> HasClassAsync(this ElementHandle handle, string className)
{
handle.GuardFromNull();
return(await handle.EvaluateFunctionWithoutDisposeAsync <bool>("(element, className) => element.classList.contains(className)", className).ConfigureAwait(false));
}
// ClassName
/// <summary>
/// ClassName of the element.
/// See also https://developer.mozilla.org/en-US/docs/Web/API/Element/className
/// </summary>
/// <param name="handle">An <see cref="ElementHandle"/></param>
/// <returns>The element <c>className</c></returns>
public static async Task <string> ClassNameAsync(this ElementHandle handle)
{
handle.GuardFromNull();
return(await handle.EvaluateFunctionWithoutDisposeAsync <string>("element => element.className").ConfigureAwait(false));
}
// HasContent
/// <summary>
/// Indicates whether the element has the specified content or not.
/// </summary>
/// <param name="handle">An <see cref="ElementHandle"/></param>
/// <param name="content">The content</param>
/// <remarks>Evaluates <c>node.textContent</c></remarks>
/// <returns><c>true</c> if the element has the specified content</returns>
public static async Task <bool> HasContentAsync(this ElementHandle handle, string content)
{
handle.GuardFromNull();
return(await handle.EvaluateFunctionWithoutDisposeAsync <bool>("(node, content) => node.textContent.includes(content)", content).ConfigureAwait(false));
}
/// <summary>
/// The value of a specified attribute on the element.
/// </summary>
/// <param name="elementHandle">An <see cref="ElementHandle"/></param>
/// <param name="name">The attribute name</param>
/// <returns>The attribute value</returns>
/// <seealso href="https://developer.mozilla.org/en-US/docs/Web/API/Element/getAttribute"/>
public static async Task <string> GetAttributeAsync(this ElementHandle elementHandle, string name)
{
return(await elementHandle.EvaluateFunctionWithoutDisposeAsync <string>("(element, name) => element.getAttribute(name)", name).ConfigureAwait(false));
}
// HasAttribute
/// <summary>
/// Indicates whether the element has the specified attribute or not.
/// See also https://developer.mozilla.org/en-US/docs/Web/API/Element/hasAttribute
/// </summary>
/// <param name="handle">An <see cref="ElementHandle"/></param>
/// <param name="name">The attribute name</param>
/// <returns><c>true</c> if the element has the specified attribute</returns>
public static async Task <bool> HasAttributeAsync(this ElementHandle handle, string name)
{
handle.GuardFromNull();
return(await handle.EvaluateFunctionWithoutDisposeAsync <bool>("(element, name) => element.hasAttribute(name)", name).ConfigureAwait(false));
}
