public void SelectDirectory(DirectoryEntryViewModel directoryEntry, TreeView treeView, Action beforeSelectItem, Action afterSelectItem)
{
if (ReferenceEquals(CurrentRootNodesViewModel, _fileSystemEntryRootNodes))
{
return;
}
var chromiumRoot = GetChromiumRoot(directoryEntry);
var entryViewModel =
_fileSystemEntryRootNodes.OfType <DirectoryEntryViewModel>()
.FirstOrDefault(x => SystemPathComparer.Instance.Comparer.Equals(x.Name, chromiumRoot.Name));
if (entryViewModel == null)
{
return;
}
foreach (var childName in directoryEntry.Name.Split(Path.DirectorySeparatorChar))
{
var childViewModel = entryViewModel
.Children
.OfType <DirectoryEntryViewModel>()
.FirstOrDefault(x => SystemPathComparer.Instance.Comparer.Equals(x.Name, childName));
if (childViewModel == null)
{
entryViewModel.EnsureAllChildrenLoaded();
childViewModel = entryViewModel
.Children
.OfType <DirectoryEntryViewModel>()
.FirstOrDefault(x => SystemPathComparer.Instance.Comparer.Equals(x.Name, childName));
if (childViewModel == null)
{
return;
}
}
entryViewModel = childViewModel;
}
SwitchToFileSystemTree();
entryViewModel.IsExpanded = true;
entryViewModel.IsSelected = true;
WpfUtilities.Invoke(treeView, DispatcherPriority.ApplicationIdle, () => {
try {
beforeSelectItem();
try {
WpfUtilities.SelectItem(treeView, entryViewModel);
}
finally {
afterSelectItem();
}
}
catch (Exception e) {
Logger.LogException(e, "Error updating TreeView UI to show selected item.");
}
});
}
public void NavigateToDirectory(DirectoryEntryViewModel directoryEntry)
{
// The use of "Post" is significant, as it prevents the message from
// bubbling up thus preventing the newly opened document to receive
// the focus.
SynchronizationContextProvider.UIContext.Post(() =>
_control.ViewModel.SelectDirectory(directoryEntry,
_control.FileTreeView,
() => _control.SwallowsRequestBringIntoView(false),
() => _control.SwallowsRequestBringIntoView(true)));
}
private DirectoryEntryViewModel GetChromiumRoot(DirectoryEntryViewModel directoryEntry)
{
for (TreeViewItemViewModel parent = directoryEntry; parent != null; parent = parent.ParentViewModel)
{
if (parent.ParentViewModel == null)
{
var model = parent as DirectoryEntryViewModel;
if (model != null)
{
return(model);
}
break;
}
}
return(null);
}
private DirectoryEntryViewModel GetChromiumRoot(DirectoryEntryViewModel directoryEntry)
{
for (TreeViewItemViewModel parent = directoryEntry; parent != null; parent = parent.ParentViewModel) {
if (parent.ParentViewModel == null) {
var model = parent as DirectoryEntryViewModel;
if (model != null)
return model;
break;
}
}
return null;
}
public void SelectDirectory(DirectoryEntryViewModel directoryEntry, TreeView treeView, Action beforeSelectItem, Action afterSelectItem)
{
if (ReferenceEquals(CurrentRootNodesViewModel, _fileSystemEntryRootNodes))
return;
var chromiumRoot = GetChromiumRoot(directoryEntry);
var entryViewModel =
_fileSystemEntryRootNodes.OfType<DirectoryEntryViewModel>()
.FirstOrDefault(x => SystemPathComparer.Instance.Comparer.Equals(x.Name, chromiumRoot.Name));
if (entryViewModel == null)
return;
foreach (var childName in directoryEntry.Name.Split(Path.DirectorySeparatorChar)) {
var childViewModel = entryViewModel
.Children
.OfType<DirectoryEntryViewModel>()
.FirstOrDefault(x => SystemPathComparer.Instance.Comparer.Equals(x.Name, childName));
if (childViewModel == null) {
entryViewModel.EnsureAllChildrenLoaded();
childViewModel = entryViewModel
.Children
.OfType<DirectoryEntryViewModel>()
.FirstOrDefault(x => SystemPathComparer.Instance.Comparer.Equals(x.Name, childName));
if (childViewModel == null)
return;
}
entryViewModel = childViewModel;
}
SwitchToFileSystemTree();
entryViewModel.IsExpanded = true;
entryViewModel.IsSelected = true;
WpfUtilities.Invoke(treeView, DispatcherPriority.ApplicationIdle, () => {
try {
beforeSelectItem();
try {
WpfUtilities.SelectItem(treeView, entryViewModel);
}
finally {
afterSelectItem();
}
}
catch (Exception e) {
Logger.LogException(e, "Error updating TreeView UI to show selected item.");
}
});
}
public void NavigateToDirectory(DirectoryEntryViewModel directoryEntry)
{
// The use of "Post" is significant, as it prevents the message from
// bubbling up thus preventing the newly opened document to receive
// the focus.
SynchronizationContextProvider.UIContext.Post(() =>
_control.ViewModel.SelectDirectory(directoryEntry,
_control.FileTreeView,
() => _control.SwallowsRequestBringIntoView(false),
() => _control.SwallowsRequestBringIntoView(true)));
}
