/// <summary>
/// Initializes a new instance of the <see cref="TagViewModel"/> class.
/// </summary>
/// <param name="tags">The tags view model that created this tag.</param>
/// <param name="name">The name of this tag.</param>
/// <param name="taggedAssets">The assets who have this flag.</param>
/// <param name="selectedAssetsCount">The number of assets currently selected, whether or not they have this tag.</param>
public TagViewModel(TagsViewModel tags, string name, IEnumerable <AssetViewModel> taggedAssets, int selectedAssetsCount)
: base(tags.SafeArgument(nameof(tags)).ServiceProvider)
{
this.tags = tags;
this.selectedAssetsCount = selectedAssetsCount;
Name = name;
// Add assets before monitoring the Assets collection
Assets.AddRange(taggedAssets);
Assets.CollectionChanged += CollectionChanged;
RemoveTagCommand = new AnonymousCommand(ServiceProvider, RemoveTag);
AddTagToAllCommand = new AnonymousCommand(ServiceProvider, () => tags.AddTagCommand.Execute(Name));
UpdateCounter();
}
private void RefreshAssets()
{
if (IsBusy)
{
return;
}
Assets.Clear();
IsBusy = true;
pageNumber = 1;
Task.Run(async() =>
{
var result = await LoadAssetsAsync(pageNumber);
Assets.AddRange(result);
});
IsBusy = false;
}
private void LoadMoreAssets()
{
if (IsBusy)
{
return;
}
IsBusy = true;
Task.Run(async() =>
{
var result = await LoadAssetsAsync(pageNumber + 1);
if (result?.Any() == true)
{
Assets.AddRange(result);
pageNumber += 1;
}
});
IsBusy = false;
}
