protected EntityHierarchyItemViewModel([NotNull] EntityHierarchyEditorViewModel editor, [NotNull] EntityHierarchyViewModel asset, [NotNull] IEnumerable <EntityDesign> childEntities)
: base(editor, asset)
{
if (childEntities == null)
{
throw new ArgumentNullException(nameof(childEntities));
}
// note: we want to ignore case and diacritics (e.g. accentuation) when sorting the folders
Folders = new AutoUpdatingSortedObservableCollection <EntityFolderViewModel>((x, y) => string.Compare(x.Name, y.Name, StringComparison.InvariantCultureIgnoreCase));
// Note: we make sure that empty folders and null folders are grouped together
// TODO: implement a more robust folder grouping method that trims, etc.
// TODO: also ensure that empty folder are serialized as null (or vice-versa) to avoid this kind of issue
foreach (var folderGroup in childEntities.GroupBy(x => !string.IsNullOrWhiteSpace(x.Folder) ? x.Folder : null).OrderBy(x => x.Key))
{
if (!EntityFolderViewModel.GenerateFolder(this, folderGroup.Key, folderGroup))
{
foreach (var child in folderGroup)
{
var viewModel = (EntityViewModel)Editor.CreatePartViewModel(Asset, child);
subEntities.Add(viewModel);
}
}
}
AddItems(Folders);
AddItems(subEntities);
// We register the collection changed handler after having added already-existing children
Folders.CollectionChanged += FolderCollectionChanged;
subEntities.CollectionChanged += SubEntityCollectionChanged;
// Add policies for adding/inserting assets
// TODO: make it work with plugins (discovery, registration, override...)
addAssetPolicies = new List <IAddAssetPolicy>
{
new AddModelAssetPolicy <ModelAsset>(),
new AddModelAssetPolicy <PrefabModelAsset>(),
new AddModelAssetPolicy <ProceduralModelAsset>(),
new AddPrefabAssetPolicy(),
new AddSceneAssetPolicy(),
new AddScriptSourceFileAssetPolicy(),
new AddSpriteSheetAssetPolicy(),
new AddSpriteStudioModelAssetPolicy(),
new AddTextureAssetPolicy(),
new AddVideoAssetPolicy(),
new AddUIPageAssetPolicy(),
};
}
public static bool GenerateFolder([NotNull] EntityHierarchyItemViewModel parent, string path, [NotNull] IEnumerable <EntityDesign> entities)
{
if (parent == null)
{
throw new ArgumentNullException(nameof(parent));
}
if (parent is EntityFolderViewModel)
{
return(false);
}
// Trim separator in malformed path
path = path?.Trim(FolderSeparator);
if (string.IsNullOrWhiteSpace(path))
{
return(false);
}
var folders = path.Split(new[] { FolderSeparator }, StringSplitOptions.RemoveEmptyEntries);
var folderCollection = parent.Folders;
EntityFolderViewModel subFolder;
foreach (var folder in folders.Take(folders.Length - 1))
{
subFolder = folderCollection.FirstOrDefault(x => string.Equals(x.Name, folder, FolderCase));
if (subFolder == null)
{
subFolder = new EntityFolderViewModel(parent.Editor, parent.Asset, folder, Enumerable.Empty <EntityDesign>());
parent.Folders.Add(subFolder);
}
folderCollection = subFolder.Folders;
parent = subFolder;
}
subFolder = new EntityFolderViewModel(parent.Editor, parent.Asset, folders[folders.Length - 1], entities);
parent.Folders.Add(subFolder);
return(true);
}
