/// <summary>
/// Create image handler for downloading video image if found and release the WebClient instance used for API call.
/// </summary>
private void HandlePostApiCall(object sender)
{
try
{
if (_videoImageUrl != null)
{
_imageLoadHandler = new ImageLoadHandler(HtmlContainer, OnLoadImageComplete);
_imageLoadHandler.LoadImage(_videoImageUrl, HtmlTag != null ? HtmlTag.Attributes : null);
}
else
{
_imageLoadingComplete = true;
SetErrorBorder();
}
var webClient = (WebClient)sender;
webClient.DownloadStringCompleted -= OnDownloadYoutubeApiCompleted;
webClient.DownloadStringCompleted -= OnDownloadVimeoApiCompleted;
webClient.Dispose();
HtmlContainer.RequestRefresh(IsLayoutRequired());
}
catch
{
}
}
/// <summary>
/// Load Vimeo video data (title, image, link) by calling Vimeo API.
/// </summary>
private void LoadVimeoDataAsync(Uri uri)
{
ThreadPool.QueueUserWorkItem(state =>
{
try
{
var apiUri =
new Uri(string.Format(
"http://vimeo.com/api/v2/video/{0}.json", uri.Segments[2]));
var client = new WebClient();
client.Encoding = Encoding.UTF8;
client.DownloadStringCompleted += OnDownloadVimeoApiCompleted;
client.DownloadStringAsync(apiUri);
}
catch (Exception ex)
{
_imageLoadingComplete = true;
SetErrorBorder();
HtmlContainer.ReportError(HtmlRenderErrorType.Iframe,
"Failed to get vimeo video data: " + uri,
ex);
HtmlContainer.RequestRefresh(false);
}
});
}
/// <summary>
/// Load YouTube video data (title, image, link) by calling YouTube API.
/// </summary>
private void LoadYoutubeDataAsync(Uri uri)
{
ThreadPool.QueueUserWorkItem(state =>
{
try
{
var apiUri =
new Uri(
string.Format(
"http://gdata.youtube.com/feeds/api/videos/{0}?v=2&alt=json",
uri.Segments[2]));
var client = new WebClient();
client.Encoding = Encoding.UTF8;
client.DownloadStringCompleted += OnDownloadYoutubeApiCompleted;
client.DownloadStringAsync(apiUri);
}
catch (Exception ex)
{
HtmlContainer.ReportError(HtmlRenderErrorType.Iframe,
"Failed to get youtube video data: " +
uri, ex);
HtmlContainer.RequestRefresh(false);
}
});
}
void LoadImageAsync()
{
RImage image;
if (this.Content != null && this.Content != CssConstants.Normal)
{
image = HtmlContainer.ResourceServer.GetImage(
this.Content,
HtmlTag != null ? HtmlTag.Attributes : null);
}
else
{
image = HtmlContainer.ResourceServer.GetImage(
GetAttribute("src"),
HtmlTag != null ? HtmlTag.Attributes : null);
}
_imageWord.Image = image;
_imageWord.ImageRectangle = RRect.Empty; // rectangle;
_imageLoadingComplete = true;
_wordsSizeMeasured = false;
if (_imageLoadingComplete && image == null)
{
SetErrorBorder();
}
{
var width = new CssLength(Width);
var height = new CssLength(Height);
var layout = (width.Number <= 0 || width.Unit != CssUnit.Pixels) || (height.Number <= 0 || height.Unit != CssUnit.Pixels);
HtmlContainer.RequestRefresh(layout);
}
}
/// <summary>
/// On image load process is complete with image or without update the image box.
/// </summary>
/// <param name="image">the image loaded or null if failed</param>
/// <param name="rectangle">the source rectangle to draw in the image (empty - draw everything)</param>
/// <param name="async">is the callback was called async to load image call</param>
private void OnLoadImageComplete(RImage image, RRect rectangle, bool async)
{
_imageWord.Image = image;
_imageWord.ImageRectangle = rectangle;
_imageLoadingComplete = true;
_wordsSizeMeasured = false;
if (_imageLoadingComplete && image == null)
{
SetErrorBorder();
}
if (async)
{
HtmlContainer.RequestRefresh(IsLayoutRequired());
}
}
/// <summary>
/// On image load process is complete with image or without update the image box.
/// </summary>
/// <param name="image">the image loaded or null if failed</param>
/// <param name="rectangle">the source rectangle to draw in the image (empty - draw everything)</param>
/// <param name="async">is the callback was called async to load image call</param>
private void OnLoadImageComplete(RImage image, RRect rectangle, bool async)
{
_imageWord.Image = image;
_imageWord.ImageRectangle = rectangle;
_imageLoadingComplete = true;
_wordsSizeMeasured = false;
if (_imageLoadingComplete && image == null)
{
SetErrorBorder();
}
if (!HtmlContainer.AvoidImagesLateLoading || async)
{
var width = new CssLength(Width);
var height = new CssLength(Height);
var layout = (width.Number <= 0 || width.Unit != CssUnit.Pixels) || (height.Number <= 0 || height.Unit != CssUnit.Pixels);
HtmlContainer.RequestRefresh(layout);
}
}
/// <summary>
/// Create image handler for downloading video image if found and release the WebClient instance used for API call.
/// </summary>
private void HandlePostApiCall(object sender)
{
try
{
if (_videoImageUrl == null)
{
_imageLoadingComplete = true;
SetErrorBorder();
}
var webClient = (WebClient)sender;
webClient.DownloadStringCompleted -= OnDownloadYoutubeApiCompleted;
webClient.DownloadStringCompleted -= OnDownloadVimeoApiCompleted;
webClient.Dispose();
HtmlContainer.RequestRefresh(IsLayoutRequired());
}
catch
{ }
}
