public static async Task <IList <EntryInfo> > GetHistoryEntriesInfo()
{
Windows.Storage.StorageFolder localFolder = Windows.Storage.ApplicationData.Current.LocalFolder;
IList <string> entriesKey = GetHistory();
IDictionary <string, EntryInfo> oldHistory = new Dictionary <string, EntryInfo>(StringComparer.OrdinalIgnoreCase);
if (_chmHistoryFiles != null)
{
foreach (var x in _chmHistoryFiles.Entries)
{
oldHistory.Add(x.Key, x);
}
}
else
{
_chmHistoryFiles = new EntriesInfo();
}
List <EntryInfo> newHistory = new List <EntryInfo>();
List <string> invalidEntries = new List <string>();
foreach (var k in entriesKey)
{
if (oldHistory.ContainsKey(k))
{
newHistory.Add(oldHistory[k]);
}
else if (await ChmFile.ContainsFile(k))
{
try
{
MetaInfo info = await MetaInfo.ReadMetaInfo(k);
EntryInfo entry = new EntryInfo();
entry.Key = k;
entry.Name = info.GetDisplayName();
if (string.IsNullOrEmpty(entry.Name))
{
entry.Name = "未知";
}
entry.Image = await Snapshot.LoadSnapshot(k);
newHistory.Add(entry);
}
catch
{
//Ignore
invalidEntries.Add(k);
}
}
else
{
invalidEntries.Add(k);
}
}
await DeleteFromHistory(invalidEntries);
_chmHistoryFiles.Entries = newHistory;
return(newHistory);
}
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;
}