/// <summary>
/// Populates the page with content passed during navigation. Any saved state is also
/// provided when recreating a page from a prior session.
/// </summary>
/// <param name="navigationParameter">The parameter value passed to
/// <see cref="Frame.Navigate(Type, Object)"/> when this page was initially requested.
/// </param>
/// <param name="pageState">A dictionary of state preserved by this page during an earlier
/// session. This will be null the first time a page is visited.</param>
protected override async void LoadState(Object navigationParameter, Dictionary <String, Object> pageState)
{
var app = Application.Current as App;
var loader = new ResourceLoader();
if (app.needToDownload == false)
{
needtoGoBack = true; return;
}
app.needToDownload = false;
var item = navigationParameter as DownloadMagazine;
if (item != null)
{
statusText.Text = loader.GetString("download_progress");
var url = item.url;
LoadSnappedSource();
//magList.Visibility = Windows.UI.Xaml.Visibility.Collapsed;
downloadView.Visibility = Windows.UI.Xaml.Visibility.Visible;
try
{
var folder = await app.Manager.AddMagazineFolderStructure(url);
Windows.UI.Xaml.Media.Imaging.BitmapSource bitmap = null;
try
{
bitmap = await app.Manager.DownloadThumbnailAsync(url, folder);
}
catch { }
if (bitmap == null)
{
var messageDialog = new MessageDialog(loader.GetString("download_failed"));
var commands = new List <UICommand>();
var close = new UICommand(loader.GetString("close"));
close.Invoked = closeCommandHandler;
messageDialog.Commands.Clear();
messageDialog.Commands.Add(close);
var task = messageDialog.ShowAsync().AsTask();
return;
}
pdfThumbnail.Width = bitmap.PixelWidth * pdfThumbnail.Height / bitmap.PixelHeight;
pdfThumbnail.Source = bitmap;
pRing.IsActive = false;
var progressIndicator = new Progress <int>((value) =>
{
if (statusText.Text != app.Manager.StatusText)
{
statusText.Text = app.Manager.StatusText;
}
progressBar.Value = value;
});
cts = new CancellationTokenSource();
IRandomAccessStream stream = null;
if (item.redirectUrl == null)
{
stream = await app.Manager.DownloadMagazineAsync(url, folder, item.IsSampleDownloaded, progressIndicator, cts.Token);
}
else
{
stream = await app.Manager.DownloadMagazineAsync(url, item.redirectUrl, folder, item.IsSampleDownloaded, progressIndicator, cts.Token);
}
if (stream == null)
{
return;
}
statusText.Text = loader.GetString("done");
await app.Manager.MarkAsDownloaded(url, folder, item.IsSampleDownloaded);
await Task.Delay(1000);
var mag = DownloadManager.GetLocalUrl(app.Manager.MagazineLocalUrl, url.FullName);
this.Frame.Navigate(typeof(PdfViewPage), new MagazineData()
{
stream = stream, folderUrl = mag.FolderPath
});
}
catch (Exception ex)
{
statusText.Text = "Error";
if (ex.Message == "Response status code does not indicate success: 403 (Forbidden).")
{
var messageDialog = new MessageDialog(loader.GetString("download_failed"));
var commands = new List <UICommand>();
var close = new UICommand(loader.GetString("close"));
close.Invoked = closeCommandHandler;
messageDialog.Commands.Clear();
messageDialog.Commands.Add(close);
var task = messageDialog.ShowAsync().AsTask();
return;
}
else if (ex.Message == "The operation was canceled.")
{
var messageDialog = new MessageDialog(loader.GetString("download_failed"));
var commands = new List <UICommand>();
var close = new UICommand(loader.GetString("close"));
close.Invoked = closeCommandHandler;
messageDialog.Commands.Clear();
messageDialog.Commands.Add(close);
var task = messageDialog.ShowAsync().AsTask();
return;
}
else
{
var messageDialog = new MessageDialog("Unexpected error");
var commands = new List <UICommand>();
var close = new UICommand(loader.GetString("close"));
close.Invoked = closeCommandHandler;
messageDialog.Commands.Clear();
messageDialog.Commands.Add(close);
var task = messageDialog.ShowAsync().AsTask();
return;
}
}
}
else
{
//string s = navigationParameter as string;
//if (s == "test")
//{
// testView.Visibility = Windows.UI.Xaml.Visibility.Visible;
//}
//else
//{
// needtoGoBack = true;
//}
}
}
//private async Task<StorageFile> CreateMetadataFile(string name)
//{
// //var roamingFolder = Windows.Storage.ApplicationData.Current.RoamingFolder;
// var roamingFolder = KnownFolders.DocumentsLibrary;
// var file = await roamingFolder.CreateFileAsync(name + ".pmd", CreationCollisionOption.ReplaceExisting);
// folder = await roamingFolder.CreateFolderAsync(name, CreationCollisionOption.GenerateUniqueName);
// var stream = await file.OpenAsync(Windows.Storage.FileAccessMode.ReadWrite);
// using (var outputStream = stream.GetOutputStreamAt(0))
// using (var dataWriter = new DataWriter(outputStream))
// {
// string data = name + "\r\n" + DateTime.Today.Month.ToString() + "/" + DateTime.Today.Day.ToString() + "/" + DateTime.Today.Year.ToString() + "\r\n";
// dataWriter.WriteString(data);
// await dataWriter.StoreAsync();
// await outputStream.FlushAsync();
// }
// return file;
//}
//private async Task<IRandomAccessStream> DownloadFileAsyncWithProgress(string url, StorageFile pdfFile, IProgress<int> progress = null, CancellationToken cancelToken = default(CancellationToken))
//{
// HttpClient client = new HttpClient();
// HttpRequestMessage request = new HttpRequestMessage(HttpMethod.Get, url);
// int read = 0;
// int offset = 0;
// byte[] responseBuffer = new byte[1024];
// var response = await client.SendAsync(request, HttpCompletionOption.ResponseHeadersRead, cancelToken);
// var length = response.Content.Headers.ContentLength;
// cancelToken.ThrowIfCancellationRequested();
// var stream = new InMemoryRandomAccessStream();
// using (var responseStream = await response.Content.ReadAsStreamAsync())
// {
// do
// {
// cancelToken.ThrowIfCancellationRequested();
// read = await responseStream.ReadAsync(responseBuffer, 0, responseBuffer.Length);
// cancelToken.ThrowIfCancellationRequested();
// await stream.AsStream().WriteAsync(responseBuffer, 0, read);
// offset += read;
// int val = (int)(offset * 100 / length);
// progress.Report(val);
// }
// while (read != 0);
// }
// await stream.FlushAsync();
// using (var protectedStream = await DownloadManager.ProtectPDFStream(stream))
// using (var fileStream = await pdfFile.OpenAsync(Windows.Storage.FileAccessMode.ReadWrite))
// //using (var unprotectedStream = await UnprotectPDFStream(protectedStream))
// {
// await RandomAccessStream.CopyAsync(protectedStream, fileStream.GetOutputStreamAt(0));
// await fileStream.FlushAsync();
// }
// return stream;
//}
//private async Task GetUrlsFromPDF(IRandomAccessStream stream)
//{
// using (var dataReader = new DataReader(stream.GetInputStreamAt(0)))
// {
// uint u = await dataReader.LoadAsync((uint)stream.Size);
// IBuffer buffer = dataReader.ReadBuffer(u);
// GetPDFLinks(buffer);
// TimeSpan t = new TimeSpan(0, 0, 1);
// await Task.Delay(t);
// }
//}
//private void GetPDFLinks(IBuffer buffer)
//{
// var document = Document.Create(
// buffer, // - file
// DocumentType.PDF, // type
// 72 // - dpi
// );
// var linkVistor = new LinkInfoVisitor();
// linkVistor.OnURILink += linkVistor_OnURILink;
// for (int i = 0; i < document.PageCount; i++)
// {
// var links = document.GetLinks(i);
// for (int j = 0; j < links.Count; j++)
// {
// links[j].AcceptVisitor(linkVistor);
// }
// }
//}
//void linkVistor_OnURILink(LinkInfoVisitor __param0, LinkInfoURI __param1)
//{
// string str = __param1.URI;
// if (str.Contains("localhost"))
// {
// links.Add(str);
// }
//}
//private async Task DownloadAssetsAsync(StorageFile metadataFile)
//{
// var absLinks = new List<string>();
// foreach (var link in links)
// {
// string absLink = link;
// var pos = absLink.IndexOf('?');
// if (pos >= 0) absLink = link.Substring(0, pos);
// string fileName = absLink.Replace("http://localhost/", "");
// string linkString = "";
// linkString = folder.Path + "\\" + absLink.Replace("http://localhost/", "") + "\r\n";
// absLink = absLink.Replace("http://localhost/", "http://librelio-europe.s3.amazonaws.com/niveales/wind/windfree_albeau2012/");
// absLinks.Add(absLink);
// var progressIndicator = new Progress<int>((value) => progressBar.Value = value);
// cts = new CancellationTokenSource();
// var sampleFile = await folder.CreateFileAsync(fileName + ".pmd", CreationCollisionOption.ReplaceExisting);
// await DownloadFileAsyncWithProgress(absLink, sampleFile, progressIndicator, cts.Token);
// using (var fileStream = await metadataFile.OpenAsync(Windows.Storage.FileAccessMode.ReadWrite))
// using (var dataReader = new DataReader(fileStream.GetInputStreamAt(0)))
// using (var dataWriter = new DataWriter(fileStream.GetOutputStreamAt(0)))
// {
// var len = await dataReader.LoadAsync((uint)fileStream.Size);
// var data = dataReader.ReadString((uint)len);
// var size = dataWriter.WriteString(data + linkString);
// await fileStream.FlushAsync();
// await dataWriter.StoreAsync();
// }
// }
//}
private async void itemListView_ItemClick(object sender, ItemClickEventArgs e)
{
Item item = (Item)e.ClickedItem;
var loader = new ResourceLoader();
statusText.Text = loader.GetString("download_progress");
var app = Application.Current as App;
foreach (var url in app.Manager.MagazineUrl)
{
if (url.FullName == item.FullName)
{
//magList.Visibility = Windows.UI.Xaml.Visibility.Collapsed;
downloadView.Visibility = Windows.UI.Xaml.Visibility.Visible;
var folder = await app.Manager.AddMagazineFolderStructure(url);
var bitmap = await app.Manager.DownloadThumbnailAsync(url, folder);
pdfThumbnail.Width = bitmap.PixelWidth * pdfThumbnail.Height / bitmap.PixelHeight;
pdfThumbnail.Source = bitmap;
pRing.IsActive = false;
var progressIndicator = new Progress <int>((value) =>
{
if (statusText.Text != app.Manager.StatusText)
{
statusText.Text = app.Manager.StatusText;
}
progressBar.Value = value;
});
cts = new CancellationTokenSource();
try
{
var stream = await app.Manager.DownloadMagazineAsync(url, folder, false, progressIndicator, cts.Token);
if (stream == null)
{
return;
}
statusText.Text = loader.GetString("done");
await app.Manager.MarkAsDownloaded(url, folder, false);
await Task.Delay(1000);
var mag = DownloadManager.GetLocalUrl(app.Manager.MagazineLocalUrl, item.FullName);
this.Frame.Navigate(typeof(PdfViewPage), new MagazineData()
{
stream = stream, folderUrl = mag.FolderPath
});
}
catch (Exception ex)
{
statusText.Text = "Error";
if (ex.Message == "Response status code does not indicate success: 403 (Forbidden).")
{
var messageDialog = new MessageDialog(loader.GetString("download_failed"));
var commands = new List <UICommand>();
var close = new UICommand(loader.GetString("close"));
close.Invoked = closeCommandHandler;
messageDialog.Commands.Clear();
messageDialog.Commands.Add(close);
var task = messageDialog.ShowAsync().AsTask();
return;
}
else if (ex.Message == "The operation was canceled.")
{
var messageDialog = new MessageDialog(loader.GetString("download_failed"));
var commands = new List <UICommand>();
var close = new UICommand(loader.GetString("close"));
close.Invoked = closeCommandHandler;
messageDialog.Commands.Clear();
messageDialog.Commands.Add(close);
var task = messageDialog.ShowAsync().AsTask();
return;
}
else
{
var messageDialog = new MessageDialog("Unexpected error");
var commands = new List <UICommand>();
var close = new UICommand(loader.GetString("close"));
close.Invoked = closeCommandHandler;
messageDialog.Commands.Clear();
messageDialog.Commands.Add(close);
var task = messageDialog.ShowAsync().AsTask();
return;
}
}
return;
}
}
}
