private void UpdateParentOnLibraryItemRemoved(object sender, LibraryRemovedEventArgs args)
{
LibraryModelItem item = args.RemovedItem as LibraryModelItem;
if (args.RemovedItem is MediaItemsListModelItem)
{
CategoryModelItem parent = (from parentItem in CategoryItems where parentItem.Id == item.ParentId select parentItem).FirstOrDefault();
if (parent != null)
{
parent.RemoveChild(item as MediaItemsListModelItem);
}
}
else if (args.RemovedItem is CategoryModelItem)
{
CatalogueModelItem parent = (from parentItem in CatalogueItems where parentItem.Id == item.ParentId select parentItem).FirstOrDefault();
if (parent != null)
{
int childrenCount = (from categoryItem in CategoryItems where categoryItem.ParentId == item.ParentId select categoryItem).Count();
parent.Subtitle = CatalogueModelItem.GetSubtitleString(childrenCount);
}
}
// Currently there is no need to handle CatalogueModelItem removal
}
// Load library and return it's id
public string LoadLibrary(Library library)
{
ActiveLibrary = library;
LibraryDocument = Library.GetLibraryContents(ActiveLibrary, App.Engine.LoggedUser);
LibraryDocument.Changed += OnLibraryDocumentChanged;
ChangedContent = Library.GetChangedContent(ActiveLibrary, App.Engine.LoggedUser);
LibraryId = LibraryDocument.Root.Attribute(NedNodeIdAttribute).Value;
var mediaItemsQuery =
from nedNodeElements in LibraryDocument.Descendants(NedNodeTag)
from nedNodeChildren in nedNodeElements.Element(NedNodeChildrenTag).Elements()
where (string)nedNodeElements.Attribute(NedNodeTypeAttribute) == CategoryTagType
select new MediaItemsListModelItem()
{
Id = nedNodeChildren.Attribute(NedNodeIdAttribute).Value,
LibraryId = this.LibraryId,
ParentId = nedNodeElements.Attribute(NedNodeIdAttribute).Value,
Title = nedNodeChildren.Element(TitleTag).Value,
FileName = nedNodeChildren.Attribute(NedNodeDataAttribute) != null?nedNodeChildren.Attribute(NedNodeDataAttribute).Value : String.Empty,
ItemType = MediaItemsListModelItem.GetTypeFromString(nedNodeChildren.Attribute(NedNodeTypeAttribute).Value),
Description = nedNodeChildren.Element(NedNodeDescriptionTag) != null?nedNodeChildren.Element(NedNodeDescriptionTag).Value : String.Empty,
ExternalLinks = (from linkElement in nedNodeChildren.Elements(NedNodeLinkTag) select linkElement.Value).ToList(),
Keywords = (from keywordElement in nedNodeChildren.Elements(NedNodeKeywordTag) select keywordElement.Value).ToList(),
IsChanged = ChangedContent != null ? (from changedElements in ChangedContent.Root.Descendants(NedNodeTag)
where changedElements.Attribute(NedNodeIdAttribute).Value == nedNodeChildren.Attribute(NedNodeIdAttribute).Value
select changedElements).Count() > 0 : false
};
ObservableCollection <MediaItemsListModelItem> AllMediaItemsTemp = new ObservableCollection <MediaItemsListModelItem>();
foreach (MediaItemsListModelItem item in mediaItemsQuery)
{ // To avoid multiple observers notifications on initialization
AllMediaItemsTemp.Add(item);
}
MediaItems = AllMediaItemsTemp;
var categoryItemsQuery =
from nedNodeElements in LibraryDocument.Descendants(NedNodeTag)
from nedNodeChildren in nedNodeElements.Element(NedNodeChildrenTag).Elements()
where (string)nedNodeElements.Attribute(NedNodeTypeAttribute) == CatalogueTagType
select new CategoryModelItem()
{
Id = nedNodeChildren.Attribute(NedNodeIdAttribute).Value,
ParentId = nedNodeElements.Attribute(NedNodeIdAttribute).Value,
Title = nedNodeChildren.Element(TitleTag).Value,
IsChanged = ChangedContent != null ? (from changedElements in ChangedContent.Root.Descendants(NedNodeTag)
where changedElements.Attribute(NedNodeIdAttribute).Value == nedNodeChildren.Attribute(NedNodeIdAttribute).Value
select changedElements).Count() > 0 : false
};
ObservableCollection <CategoryModelItem> AllCategoryItemsTemp = new ObservableCollection <CategoryModelItem>();
foreach (CategoryModelItem item in categoryItemsQuery)
{ // To avoid multiple observers notifications on initialization
AllCategoryItemsTemp.Add(item);
}
CategoryItems = AllCategoryItemsTemp;
foreach (CategoryModelItem catItem in CategoryItems)
{
catItem.AddChildren((from catChild in MediaItems where catChild.ParentId == catItem.Id select catChild).ToList());
}
var catalogueItemsQuery =
from nedNodeElements in LibraryDocument.Descendants(NedNodeTag)
from nedNodeChildren in nedNodeElements.Element(NedNodeChildrenTag).Elements()
where (string)nedNodeElements.Attribute(NedNodeTypeAttribute) == LibraryTagType
select new CatalogueModelItem()
{
Id = nedNodeChildren.Attribute(NedNodeIdAttribute).Value,
ParentId = nedNodeElements.Attribute(NedNodeIdAttribute).Value,
Title = nedNodeChildren.Element(TitleTag).Value,
Subtitle = CatalogueModelItem.GetSubtitleString(nedNodeChildren.Element(NedNodeChildrenTag).Elements().Count <XElement>()),
IsChanged = ChangedContent != null ? (from changedElements in ChangedContent.Root.Descendants(NedNodeTag)
where changedElements.Attribute(NedNodeIdAttribute).Value == nedNodeChildren.Attribute(NedNodeIdAttribute).Value
select changedElements).Count() > 0 : false
};
ObservableCollection <CatalogueModelItem> CatalogueItemsTemp = new ObservableCollection <CatalogueModelItem>();
foreach (CatalogueModelItem item in catalogueItemsQuery)
{ // To avoid multiple observers notifications on initialization
CatalogueItemsTemp.Add(item);
}
CatalogueItems = CatalogueItemsTemp;
CatalogueItems.CollectionChanged += OnCatalogueItemsPropertyChanged;
LibraryName = LibraryDocument.Root.Element(TitleTag).Value;
UpdateMediaItemsDownloadedStatus();
return(LibraryId);
}
