protected override void GetEmbedHTML(System.Web.UI.HtmlTextWriter writer)
{
Image image = new Image();
if (MaxWidth > 0)
{
image.Width = MaxWidth;
}
if (MaxHeight > 0)
{
image.Height = MaxHeight;
}
OEmbedResult result = GetEmbedResult(MaxWidth, MaxHeight);
if (result != null && !String.IsNullOrEmpty(result.thumbnail_url))
{
image.ImageUrl = result.thumbnail_url;
}
else
{
image.ImageUrl = DefaultImageUrl;
}
image.RenderControl(writer);
}
/// <summary>
/// Gets OEmbedResult for a URL
/// </summary>
/// <param name="url"></param>
/// <returns></returns>
public OEmbedResult GetEmbedResult(string url)
{
string response = GetEmbedResponse(url);
OEmbedResult result = JsonConvert.DeserializeObject <OEmbedResult>(response);
return(PostProcessResult(result));
}
public override OEmbedResult PostProcessResult(OEmbedResult result)
{
if (String.IsNullOrEmpty(result.html))
{
result.html = String.Format(@"<img src=""{0}"" alt=""{1}"" />", result.url, result.title);
}
return(result);
}
public override OEmbedResult PostProcessResult(OEmbedResult result)
{
if (String.IsNullOrEmpty(result.html))
{
result.html = String.Format(@"<img src=""{0}"" alt=""{1}"" />", result.url, result.title);
}
return result;
}
protected override void GetEmbedHTML(System.Web.UI.HtmlTextWriter writer)
{
string output = String.Empty;
OEmbedResult result = GetEmbedResult();
if (result != null)
{
output = result.html;
}
writer.Write(output);
}
/// <summary>
/// Processes a chunk of HTML/text
/// </summary>
/// <param name="input"></param>
/// <returns></returns>
public string Process(string input)
{
string output = input;
MatchCollection matches = Regex.Matches(input, ProviderPattern);
foreach (Match m in matches)
{
OEmbedResult result = GetEmbedResult(m.Value);
output = output.Replace(m.Value, result.html);
}
return(output);
}
public OEmbedResult GetEmbed(string url, int width, int height)
{
var result = new OEmbedResult();
var foundMatch = false;
IEmbedProvider?matchedProvider = null;
foreach (IEmbedProvider provider in _embedCollection)
{
// UrlSchemeRegex is an array of possible regex patterns to match against the URL
foreach (var urlPattern in provider.UrlSchemeRegex)
{
var regexPattern = new Regex(urlPattern, RegexOptions.IgnoreCase);
if (regexPattern.IsMatch(url))
{
foundMatch = true;
matchedProvider = provider;
break;
}
}
if (foundMatch)
{
break;
}
}
if (foundMatch == false)
{
//No matches return/ exit
result.OEmbedStatus = OEmbedStatus.NotSupported;
return(result);
}
try
{
result.SupportsDimensions = true;
result.Markup = matchedProvider?.GetMarkup(url, width, height);
result.OEmbedStatus = OEmbedStatus.Success;
}
catch (Exception ex)
{
_logger.LogError(ex, "Error embedding URL {Url} - width: {Width} height: {Height}", url, width, height);
result.OEmbedStatus = OEmbedStatus.Error;
}
return(result);
}
/// <summary>
/// If a provider wants to post-process a result, implement this method
/// </summary>
/// <param name="result"></param>
/// <returns></returns>
public virtual OEmbedResult PostProcessResult(OEmbedResult result)
{
return result;
}
/// <summary>
/// If a provider wants to post-process a result, implement this method
/// </summary>
/// <param name="result"></param>
/// <returns></returns>
public virtual OEmbedResult PostProcessResult(OEmbedResult result)
{
return(result);
}
