protected override FrameworkElement CreateControl(GoogleDrivePopupTreeParams initParams)
{
_dispatcher = Dispatcher.CurrentDispatcher;
var param = initParams;
var vm = _viewModel = new GoogleDriveTreeViewModel {
UpdateFrequentFolder = true
};
vm.Initialize(param.DriveService);
if (param.FrequentFiles != null)
{
vm.SetFrequentFiles(param.FrequentFiles);
}
vm.PropertyChanged += HandleViewModelPropertyChanged;
var tree = _treeView = new GoogleDriveTreeView {
EnableFrequentFiles = true, DataContext = vm
};
tree.SetBinding(GoogleDriveTreeView.ItemsSourceProperty, new Binding(vm.Property(v => v.ItemsView)));
tree.SetBinding(GoogleDriveTreeView.SelectedItemProperty, new Binding(vm.Property(v => v.SelectedItem))
{
Mode = BindingMode.TwoWay
});
tree.SetupLoaded(() => tree.Dispatcher.BeginInvoke(async() =>
{
await vm.InitializeAsync(false).ConfigureAwait(true);
var path = param.Path;
await vm.SelectAsync(path.Split(',')).ConfigureAwait(true);
UpdateState();
}, DispatcherPriority.DataBind));
return(tree);
}
private void LoadTreeBusyIndicator()
{
LoadingIndicatorPanel.Visibility = Visibility.Visible;
MainContent.IsEnabled = false;
Task.Factory.StartNew(() =>
{
var googleDriveTreeViewModel = new GoogleDriveTreeViewModel().Items;
Application.Current.Dispatcher.BeginInvoke(
DispatcherPriority.Background,
new Action(() =>
{
GoogleDriveFolderHierarchy.ItemsSource = googleDriveTreeViewModel;
}));
}).ContinueWith((task) =>
{
LoadingIndicatorPanel.Visibility = Visibility.Collapsed;
MainContent.IsEnabled = true;
}, TaskScheduler.FromCurrentSynchronizationContext());
}
