public async Task CreateThumbnailFile(Func<IRandomAccessStream, Task> create)
{
if (await Snapshot.CreateSnapshot(Key, create))
{
HasThumbnail = true;
FileHistory.UpdateImage(Key);
}
}
public static async Task<ChmFile> OpenLocalChmFile(string key)
{
try
{
Windows.Storage.StorageFolder localFolder = Windows.Storage.ApplicationData.Current.LocalFolder;
ChmFile ret = new ChmFile();
ret.Key = key;
var file = await localFolder.GetFileAsync(key + ChmFileExtension);
ret.Chm = await LoadChm(file.Path, true);
ret.ChmMeta = await MetaInfo.ReadMetaInfo(key);
ret.HasThumbnail = await Snapshot.HasSnapshot(key);
if (ret.Chm.Title != null)
{
ret.ChmMeta.SetDisplayName(ret.Chm.Title);
}
//try
//{
// Windows.UI.Xaml.Media.Imaging.BitmapImage image = new Windows.UI.Xaml.Media.Imaging.BitmapImage();
// using (var fileStream = await (await folder.GetFileAsync("0.png")).OpenReadAsync())
// {
// await image.SetSourceAsync(fileStream);
// }
//}
//catch
//{
// ret.HasThumbnail = false;
//}
if (!ret.ChmMeta.ContainsLast())
{
await ret.SetCurrent(ret.Chm.Home);
//await ret.ChmMeta.SaveMetaInfo(key);
}
else
{
await ret.SetCurrent(ret.ChmMeta.GetLast());
}
FileHistory.UpdateHistoryWhenOpenFile(ret.Key);
return ret;
}
catch
{
}
await FileHistory.DeleteFromHistory(key);
return null;
}
public static async Task<string> SetupChmFileFromOneDrive(LiveConnectClient client,
IProgress<LiveOperationProgress> progressHandler,
System.Threading.CancellationToken ctoken,
string id, string name, string path)
{
ChmFile ret = new ChmFile();
ret.Key = Guid.NewGuid().ToString("N");
ret.HasThumbnail = false;
Windows.Storage.StorageFolder localFolder = Windows.Storage.ApplicationData.Current.LocalFolder;
StorageFile file = await localFolder.CreateFileAsync(ret.Key + ChmFileExtension, CreationCollisionOption.ReplaceExisting);
LiveDownloadOperationResult result = await client.BackgroundDownloadAsync(id + "/content", file, ctoken, progressHandler);
try
{
ret.Chm = await LoadChm(file.Path, false);
MetaInfo meta = new MetaInfo();
meta.SetOriginalPath(path);
if (ret.Chm.Title != null)
{
meta.SetDisplayName(ret.Chm.Title);
}
else
{
meta.SetDisplayName(System.IO.Path.GetFileNameWithoutExtension(name));
}
ret.ChmMeta = meta;
await ret.Save();
FileHistory.AddToHistory(ret.Key);
}
catch
{
ret.Chm = null;
}
if (ret.Chm == null)
{
await MetaInfo.DeleteMetaFile(ret.Key);
await DeleteFile(ret.Key);
return null;
}
return ret.Key;
}
public static async Task<string> SetupChmFileFromPhone(IStorageFile storageFile)
{
ChmFile ret = new ChmFile();
Windows.Storage.StorageFolder localFolder = Windows.Storage.ApplicationData.Current.LocalFolder;
ret.Key = Guid.NewGuid().ToString("N");
ret.HasThumbnail = false;
var file = await storageFile.CopyAsync(localFolder, ret.Key + ChmFileExtension);
try
{
ret.Chm = await LoadChm(file.Path, false);
MetaInfo meta = new MetaInfo();
meta.SetOriginalPath(storageFile.Path);
if (ret.Chm.Title != null)
{
meta.SetDisplayName(ret.Chm.Title);
}
else
{
meta.SetDisplayName(System.IO.Path.GetFileNameWithoutExtension(storageFile.Name));
}
ret.ChmMeta = meta;
await ret.Save();
FileHistory.AddToHistory(ret.Key);
}
catch
{
ret.Chm = null;
}
if (ret.Chm == null)
{
await MetaInfo.DeleteMetaFile(ret.Key);
await DeleteFile(ret.Key);
return null;
}
return ret.Key;
}
