private async Task DownloadCoverImage(ComicData comic, CancellationToken cancelToken = default)
{
if (comic == null || comic.Pages.Count() == 0)
{
return;
}
string url = await ComicUpdater.Instance.GetComicImageUrl(comic.Pages.ElementAt(0), cancelToken);
if (string.IsNullOrEmpty(url))
{
return;
}
string filePath = await LocalImageService.DownloadImage(new Uri(url), comic.Id, cancelToken);
if (string.IsNullOrEmpty(filePath))
{
return;
}
CoverImage.Source = new FileImageSource {
File = filePath
};
}
private async Task SetCoverImage()
{
if (lastNavigatedWebView == null)
{
return;
}
// TODO: Expand to work with more sites
string imageUrl = await lastNavigatedWebView.EvaluateJavaScriptAsync(
"document.getElementById('cc-comic').getAttribute('src')");
if (string.IsNullOrEmpty(imageUrl))
{
await CoreMethods.DisplayAlert(
title : AppResources.Alert_Error_Title,
message : AppResources.ImageDownload_LocateError_Msg,
cancel : AppResources.Alert_Generic_Confirm);
return;
}
try
{
var cancelToken = pageEndCancel.Token;
// Start download image task so download can progress while user is reading "Download Started" popup
Task <string> downloadImageTask = LocalImageService.DownloadImage(new Uri(imageUrl), Comic.Id, cancelToken);
await CoreMethods.DisplayAlert(
title : AppResources.ImageDownload_FoundUrl_Title,
message : AppResources.ImageDownload_FoundUrl_Msg,
cancel : AppResources.Alert_Generic_Confirm);
await downloadImageTask;
cancelToken.ThrowIfCancellationRequested();
await CoreMethods.DisplayAlert(
title : AppResources.ImageDownload_Complete_Title,
message : AppResources.ImageDownload_Complete_Msg,
cancel : AppResources.Alert_Generic_Confirm);
}
catch (OperationCanceledException) { }
}