public async Task LoadLocalAsync(bool SkipLatest = false, int maxItemCount = 10)
{
if (IsLoading)
{
return;
}
IsLoading = true;
if (AppGlobal.RecentList == null)
{
await AppGlobal.LoadHistoryDataAsync();
}
var historyList = AppGlobal.RecentList;
for (int i = 0; i < this.Count; ++i)
{
var hvm = this[i];
var bookmark = historyList.FirstOrDefault(bk => bk.Position.SeriesId == hvm.Position.SeriesId);
if (bookmark == null || (SkipLatest && bookmark == historyList[historyList.Count - 1])) //Thus we should remove this item from our collection
{
this.RemoveAt(i);
--i;
}
}
int begin = historyList.Count - 1;
if (SkipLatest)
{
--begin;
}
for (int idx = 0; idx <= begin; idx++)
{
var item = historyList[begin - idx];
var hvm = this.FirstOrDefault(vm => vm.Position.SeriesId == item.Position.SeriesId);
if (hvm == null)
{
hvm = new HistoryItemViewModel(item);
if (!String.IsNullOrEmpty(item.DescriptionThumbnailUri))
{
hvm.CoverImageUri = item.DescriptionThumbnailUri;
}
this.Insert(idx, hvm);
}
else
{
hvm.Position = item.Position;
hvm.ProgressPercentage = item.Progress;
hvm.CoverImageUri = item.DescriptionImageUri;
if (!String.IsNullOrEmpty(item.DescriptionThumbnailUri))
{
hvm.CoverImageUri = item.DescriptionThumbnailUri;
}
hvm.Description = item.ContentDescription;
hvm.ChapterTitle = item.ChapterTitle;
hvm.VolumeTitle = item.VolumeTitle;
hvm.SeriesTitle = item.SeriesTitle;
hvm.UpdateTime = item.ViewDate;
var oldIdx = this.IndexOf(hvm); // should be greater or equal than idx
if (oldIdx != idx)
{
this.Move(oldIdx, idx);
}
}
if (this.Count >= maxItemCount) // Load the first 10th to show
{
break;
}
}
AppGlobal.IsHistoryListChanged = false;
NotifyPropertyChanged("IsEmpty");
IsLoading = false;
IsLoaded = true;
}
