public static FrameworkElement Render(AdaptiveMedia media, AdaptiveRenderContext context)
{
// If host doesn't support interactivity or no media source is provided
// just return the poster image if present
if (!context.Config.SupportsInteractivity || media.Sources.Count == 0)
{
return(GetPosterImage(media, context));
}
AdaptiveMediaSource mediaSource = GetMediaSource(media, context);
if (mediaSource == null)
{
return(null);
}
// Main element to return
var uiMedia = new Grid();
#region Thumbnail button
var mediaConfig = context.Config.Media;
var uiThumbnailButton = new Grid
{
Name = "thumbnailButton",
Visibility = Visibility.Visible
};
/* Poster Image */
// A poster container is necessary to handle background color and opacity mask
// in case poster image is not found or does not exist
var uiPosterContainer = new Grid()
{
Background = _controlBackgroundColor,
};
Image uiPosterImage = GetPosterImage(media, context);
if (uiPosterImage != null)
{
uiPosterContainer.Children.Add(uiPosterImage);
}
uiThumbnailButton.Children.Add(uiPosterContainer);
// Play button
var uiPlayButton = RenderThumbnailPlayButton(context);
uiThumbnailButton.Children.Add(uiPlayButton);
// Mouse hover handlers to signify playable media element
uiThumbnailButton.MouseEnter += (sender, e) =>
{
uiPosterContainer.OpacityMask = _controlBackgroundColor;
};
uiThumbnailButton.MouseLeave += (sender, e) =>
{
uiPosterContainer.OpacityMask = null;
};
#endregion
uiMedia.Children.Add(uiThumbnailButton);
// Inline playback is possible only when inline playback is allowed by the host and the chosen media source is not https
bool isInlinePlaybackPossible = mediaConfig.AllowInlinePlayback && context.Config.ResolveFinalAbsoluteUri(mediaSource.Url).Scheme != "https";
FrameworkElement uiMediaPlayer = null;
if (isInlinePlaybackPossible)
{
// Media player is only created if inline playback is allowed
uiMediaPlayer = RenderMediaPlayer(context, mediaSource, uiMedia);
uiMediaPlayer.Visibility = Visibility.Collapsed;
uiMedia.Children.Add(uiMediaPlayer);
}
// Play the media
uiThumbnailButton.MouseUp += (sender, e) =>
{
if (isInlinePlaybackPossible)
{
if (IsAudio(mediaSource) && uiPosterImage != null)
{
// If media is audio, keep only the poster image (if present)
// and disable the thumbnail button to prevent further clicks
uiPlayButton.Visibility = Visibility.Collapsed;
uiThumbnailButton.IsEnabled = false;
}
else
{
// Otherwise, collapse all the thumbnail button
uiThumbnailButton.Visibility = Visibility.Collapsed;
}
// Show the media player to start
uiMediaPlayer.Visibility = Visibility.Visible;
}
// Raise an event to send the media to host
else
{
context.ClickMedia(uiPosterContainer, new AdaptiveMediaEventArgs(media));
// Prevent nested events from triggering
e.Handled = true;
}
};
return(uiMedia);
}