private IEnumerable <RootEntry> CreateRootEntries(List <VsHierarchy> oldHierarchies)
{
foreach (var hierarchy in oldHierarchies)
{
var rootPath = GetHierarchyRootPath(hierarchy);
var projectEntry = _fileSystemTree.Projects
.FirstOrDefault(x => SystemPathComparer.Instance.StringComparer.Equals(x.RootPath, rootPath));
if (projectEntry == null)
{
// Hierarchy should be deleted, as its root does not exist in new tree
yield return(new RootEntry {
RootPath = rootPath,
Hierarchy = hierarchy,
Builder = new IncrementalHierarchyBuilder(_templateFactory, hierarchy, new FullPath(rootPath),
_fileSystemTree.Version, _nodeViewModelLoader, _imageSourceFactory)
});
}
else
{
// Hierarchy should be updated with new root entry
yield return(new RootEntry {
RootPath = rootPath,
Hierarchy = hierarchy,
Builder = new IncrementalHierarchyBuilder(_templateFactory, hierarchy, new FullPath(rootPath),
_fileSystemTree.Version, _nodeViewModelLoader, _imageSourceFactory)
});
}
}
// Look for new hierarchies
foreach (var projectEntry in _fileSystemTree.Projects)
{
var rootPath = projectEntry.RootPath;
var hierarchy = oldHierarchies
.FirstOrDefault(x => SystemPathComparer.Instance.StringComparer.Equals(GetHierarchyRootPath(x), rootPath));
if (hierarchy == null)
{
// A new hierarchy should be created
var newHierarchy = _hierarchy.CreateHierarchy();
yield return(new RootEntry {
RootPath = rootPath,
Hierarchy = newHierarchy,
Builder = new IncrementalHierarchyBuilder(_templateFactory, newHierarchy, new FullPath(rootPath),
_fileSystemTree.Version, _nodeViewModelLoader, _imageSourceFactory)
});
}
}
}
private IEnumerable <RootEntry> CreateRootEntries(List <VsHierarchy> oldHierarchies)
{
foreach (var hierarchy in oldHierarchies)
{
var rootPath = GetHierarchyRootPath(hierarchy);
var directoryEntry = _fileSystemTree.Root.Entries.FirstOrDefault(x => x.Name == rootPath);
if (directoryEntry == null)
{
// Hierarchy should be deleted, as its root does not exist in new tree
var fakeTree = new FileSystemTree {
Version = _fileSystemTree.Version,
Root = new DirectoryEntry()
{
Name = _fileSystemTree.Root.Name,
Entries = new List <FileSystemEntry>()
}
};
yield return(new RootEntry {
RootPath = rootPath,
FileSystemTree = fakeTree,
Hierarchy = hierarchy,
Builder = new IncrementalHierarchyBuilder(_templateFactory, hierarchy, fakeTree, _imageSourceFactory)
});
}
else
{
// Hierarchy should be updated with new root entry
var fakeTree = new FileSystemTree {
Version = _fileSystemTree.Version,
Root = new DirectoryEntry()
{
Name = _fileSystemTree.Root.Name,
Entries = new List <FileSystemEntry> {
directoryEntry
}
}
};
yield return(new RootEntry {
RootPath = rootPath,
FileSystemTree = fakeTree,
Hierarchy = hierarchy,
Builder = new IncrementalHierarchyBuilder(_templateFactory, hierarchy, fakeTree, _imageSourceFactory)
});
}
}
// Look for new hierarchies
foreach (var directoryEntry in _fileSystemTree.Root.Entries)
{
var rootPath = directoryEntry.Name;
var hierarchy = oldHierarchies.FirstOrDefault(x => GetHierarchyRootPath(x) == rootPath);
if (hierarchy == null)
{
// A new hierarchy should be created
var fakeTree = new FileSystemTree {
Version = _fileSystemTree.Version,
Root = new DirectoryEntry()
{
Name = _fileSystemTree.Root.Name,
Entries = new List <FileSystemEntry> {
directoryEntry
}
}
};
var newHierarchy = _hierarchy.CreateHierarchy();
yield return(new RootEntry {
RootPath = rootPath,
FileSystemTree = fakeTree,
Hierarchy = newHierarchy,
Builder = new IncrementalHierarchyBuilder(_templateFactory, newHierarchy, fakeTree, _imageSourceFactory)
});
}
}
}