private async Task SwitchToAvailablePackagesAsync()
{
_coreShell.AssertIsOnMainThread();
await EnsureInstalledAndAvailablePackagesLoadedAsync();
if (_availablePackages == null)
{
return;
}
_items.ReplaceWith(_availablePackages);
}
private void ReplaceItems(IList <IRPackageViewModel> packages)
{
_coreShell.AssertIsOnMainThread();
if (string.IsNullOrEmpty(_searchString))
{
_items.ReplaceWith(packages);
UpdateSelectedPackage(packages);
}
else
{
Search(packages, _searchString, CancellationToken.None);
}
}
private async Task ReplaceItemsAsync(IList <IRPackageViewModel> packages)
{
await _coreShell.SwitchToMainThreadAsync();
if (string.IsNullOrEmpty(_searchString))
{
_items.ReplaceWith(packages);
UpdateSelectedPackage(packages);
}
else
{
Search(packages, _searchString, CancellationToken.None);
}
}
private void UpdateConnections()
{
var selectedId = EditedConnection?.Id;
_items.ReplaceWith(_connectionManager.RecentConnections.Select(c => new ConnectionViewModel(c)
{
IsActive = c == _connectionManager.ActiveConnection,
IsConnected = c == _connectionManager.ActiveConnection && IsConnected
}).OrderBy(c => c.Name));
var editedConnection = Items.FirstOrDefault(i => i.Id == selectedId);
if (editedConnection != null)
{
EditedConnection = editedConnection;
}
}
public async Task RefreshEnvironmentsAsync(CancellationToken cancellationToken = default(CancellationToken))
{
using (_disposeToken.Link(ref cancellationToken)) {
var session = _rSession;
await TaskUtilities.SwitchToBackgroundThread();
var envs = new List <REnvironment>();
bool success = false;
try {
var traceback = (await session.TracebackAsync(cancellationToken: cancellationToken))
.Skip(1) // skip global - it's in the search path already
.Select(frame => new REnvironment(frame))
.Reverse();
if (traceback.Any())
{
envs.AddRange(traceback);
envs.Add(null);
}
var searchPath = (await session.EvaluateAsync <string[]>("as.list(search())", REvaluationKind.BaseEnv, cancellationToken))
.Except(_hiddenEnvironments)
.Select(name => new REnvironment(name));
envs.AddRange(searchPath);
success = true;
} catch (RException) {
} catch (OperationCanceledException) {
}
await _mainThread.SwitchToAsync(cancellationToken);
var oldSelection = _selectedEnvironment;
_environments.ReplaceWith(success ? envs : _errorEnvironments);
IREnvironment newSelection = null;
if (oldSelection != null)
{
newSelection = _environments?.FirstOrDefault(env => env?.Name == oldSelection.Name);
}
SelectedEnvironment = newSelection ?? _environments.FirstOrDefault();
}
}
public async Task RefreshEnvironmentsAsync()
{
await TaskUtilities.SwitchToBackgroundThread();
var envs = new List <REnvironment>();
bool success = false;
try {
var traceback = (await _rSession.TracebackAsync())
.Skip(1) // skip global - it's in the search path already
.Select(frame => new REnvironment(frame))
.Reverse();
if (traceback.Any())
{
envs.AddRange(traceback);
envs.Add(null);
}
var searchPath = (await _rSession.EvaluateAsync <string[]>("as.list(search())", REvaluationKind.BaseEnv))
.Except(_hiddenEnvironments)
.Select(name => new REnvironment(name));
envs.AddRange(searchPath);
success = true;
} catch (RException) {
} catch (MessageTransportException) {
} catch (OperationCanceledException) {
}
VsAppShell.Current.DispatchOnUIThread(() => {
var oldSelection = _selectedEnvironment;
_environments.ReplaceWith(success ? envs : _errorEnvironments);
IREnvironment newSelection = null;
if (oldSelection != null)
{
newSelection = _environments?.FirstOrDefault(env => env?.Name == oldSelection.Name);
}
SelectedEnvironment = newSelection ?? _environments.FirstOrDefault();
});
}
private void UpdateConnections()
{
var selectedId = EditedConnection?.Id;
_localConnections.ReplaceWith(_connectionManager.RecentConnections
.Where(c => !c.IsRemote)
.Select(CreateConnectionViewModel)
.OrderBy(c => c.Name));
_remoteConnections.ReplaceWith(_connectionManager.RecentConnections
.Where(c => c.IsRemote)
.Select(CreateConnectionViewModel)
.OrderBy(c => c.Name));
var editedConnection = RemoteConnections.FirstOrDefault(i => i.Id == selectedId);
if (editedConnection != null)
{
EditedConnection = editedConnection;
}
HasLocalConnections = _localConnections.Count > 0;
}
