/// <summary>
/// Renders the reCAPTCHA HTML in an MVC view.
/// </summary>
/// <param name="htmlHelper">The <see cref="System.Web.Mvc.HtmlHelper"/> object to which the extension is added.</param>
/// <param name="publicKey">Sets the public key (Site key) used to render the reCAPTCHA HTML.</param>
/// <param name="colorTheme">Sets the color theme used to render the reCAPTCHA HTML.
/// <para/> If null, no color theme will be specified and light theme should be used by the reCAPTCHA API.</param>
/// <param name="language">Sets the language used to render the reCAPTCHA HTML.
/// <para/> If null, no language will be specified and the language should be detected by the reCAPTCHA API.</param>
/// <returns>Returns rendered reCAPTCHA HTML as <see cref="IHtmlString"/>.</returns>
public static IHtmlString RecaptchaWidget(
this HtmlHelper htmlHelper,
string publicKey = "{recaptchaPublicKey}",
ColorTheme?colorTheme = null,
string language = null)
{
var recaptchaHtmlHelper = new RecaptchaHtmlHelper(publicKey);
if (colorTheme.HasValue)
{
recaptchaHtmlHelper.ColorTheme = colorTheme.Value;
}
if (String.IsNullOrEmpty(language) == false)
{
recaptchaHtmlHelper.Language = language;
}
using (var stringWriter = new StringWriter())
{
using (var htmlWriter = new HtmlTextWriter(stringWriter))
{
recaptchaHtmlHelper.Render(htmlWriter);
}
return(new MvcHtmlString(stringWriter.ToString()));
}
}
/// <summary>
/// Renders the reCAPTCHA widget HTML. This method is automatically called by ASP.NET during the rendering process.
/// </summary>
/// <param name="output">The output writer, the HTML will writen to.</param>
protected override void RenderContents(HtmlTextWriter output)
{
if (this.DesignMode)
{
output.RenderBeginTag(HtmlTextWriterTag.P);
output.Write("reCAPTCHA widget");
output.RenderEndTag();
}
else
{
var htmlHelper = new RecaptchaHtmlHelper(this.PublicKey)
{
ColorTheme = ColorTheme,
Language = Language
};
htmlHelper.Render(output);
}
}
public static IHtmlString Recaptcha(
this HtmlHelper htmlHelper,
string publicKey = "{recaptchaPublicKey}",
#pragma warning disable 618
RecaptchaTheme theme = RecaptchaTheme.Red,
#pragma warning restore 618
string language = null,
int tabIndex = 0,
bool useSsl = false)
{
var recaptchaHtmlHelper = new RecaptchaHtmlHelper(publicKey, theme, language, tabIndex);
using (var stringWriter = new StringWriter())
{
using (var htmlWriter = new HtmlTextWriter(stringWriter))
{
recaptchaHtmlHelper.Render(htmlWriter);
}
return(new MvcHtmlString(stringWriter.ToString()));
}
}
