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(EntryInfo entry)
{
return await OpenLocalChmFile(entry.Key);
}
