/// <summary>
/// Find an element with the given <paramref name="tagSelector"/> bearing a given attribute name/value combination (value is compared using the
/// given <paramref name="op"/>).
/// </summary>
/// <param name="scope">The parent <see cref="ElementScope"/> which serves as the root element for the search.</param>
/// <param name="tagSelector">The CSS selector for the HTML tags to check for the attributes.</param>
/// <param name="op">The CSS operator to use when comparing the <paramref name="attributeValue"/>.</param>
/// <param name="attributeName">The attribute name.</param>
/// <param name="attributeValue">The attribute value.</param>
/// <returns>The <see cref="ElementScope"/> of the found element.</returns>
public static ElementScope FindTagWithAttributeUsingOperator(
[NotNull] this ElementScope scope,
[NotNull] string tagSelector,
CssComparisonOperator op,
[NotNull] string attributeName,
[NotNull] string attributeValue)
{
ArgumentUtility.CheckNotNull("scope", scope);
ArgumentUtility.CheckNotNullOrEmpty("tagSelector", tagSelector);
ArgumentUtility.CheckNotNullOrEmpty("attributeName", attributeName);
ArgumentUtility.CheckNotNullOrEmpty("attributeValue", attributeValue);
var cssSelector = string.Format("{0}[{1}{2}'{3}']", tagSelector, attributeName, op.ToCssString(), attributeValue);
return(scope.FindCss(cssSelector));
}
/// <summary>
/// Returns the corresponding CSS operator to the given <paramref name="op"/>.
/// </summary>
public static string ToCssString(this CssComparisonOperator op)
{
switch (op)
{
case CssComparisonOperator.Equals:
return("=");
case CssComparisonOperator.PrefixMatch:
return("^=");
case CssComparisonOperator.SuffixMatch:
return("$=");
case CssComparisonOperator.SubstringMatch:
return("*=");
}
throw new NotImplementedException(
string.Format("CssComparisonOperatorExtensions.ToCssString does not yet support CssComparisonOperator.{0}.", op));
}
