private void Push(string route, Page p)
{
stack.Push(new KeyValuePair<string, Page>(route, p));
FirePropertyChanged(nameof(CurrentPage));
FirePropertyChanged(nameof(CurrentPath));
}
private bool TryResolveRoute(ref string path, out Page page)
{
if (path.EndsWith("/")) path = path.Substring(0, path.Length - 1);
if(path == "")
{
if(defaultRoute.HasValue)
{
path = defaultRoute.Value.Key;
page = defaultRoute.Value.Value();
page.RouteVariables = new ReadOnlyDictionary<string, string>(new Dictionary<string, string>());
page.Path = defaultRoute.Value.Key;
return true;
}
else
{
page = null;
return false;
}
}
var pathSegments = path.Split('/');
foreach (var route in routes.Keys)
{
var variablesCandidate = new Dictionary<string, string>();
var routeSegments = route.Split('/');
if(pathSegments.Length == routeSegments.Length)
{
// the path and route has the same # of segments
}
else if(routeSegments.Length > pathSegments.Length)
{
// path can't match route because the path is too short, skip it
continue;
}
else if(pathSegments.Length > routeSegments.Length && route.Contains("{*}"))
{
// this route supports dynamic routing so it's ok to keep checking if the path is longer than the route
}
else
{
continue;
}
bool candidateIsGood = true;
for(int i = 0; i < routeSegments.Length; i++)
{
var routeSegment = routeSegments[i];
var pathSegment = pathSegments[i];
if(routeSegment.StartsWith("{") && routeSegment.EndsWith("}"))
{
var variableName = routeSegment.Substring(1, routeSegment.Length - 2);
if (variableName == "*")
{
var restOfPathValue = "";
for(int j = i; j < pathSegments.Length; j++)
{
restOfPathValue += pathSegments[j]+"/";
}
restOfPathValue = restOfPathValue.Substring(0, restOfPathValue.Length - 1);
variablesCandidate.Add(variableName, restOfPathValue);
break;
}
else
{
variablesCandidate.Add(variableName, pathSegment);
}
}
else if(routeSegment.Equals(pathSegment, StringComparison.InvariantCultureIgnoreCase) == false)
{
candidateIsGood = false;
break;
}
}
if(candidateIsGood)
{
page = routes[route]();
page.RouteVariables = new ReadOnlyDictionary<string, string>(variablesCandidate);
page.Path = path;
return true;
}
}
page = null;
return false;
}
private Page CreateExplorerPage()
{
var explorerPage = new Page();
explorerPage.Loaded += () =>
{
var path = explorerPage.RouteVariables.ContainsKey("*") ? explorerPage.RouteVariables["*"] : "";
if(path.EndsWith(":"))
{
path += "/";
}
List<object> items;
if (path == "")
{
items = System.Environment.GetLogicalDrives().Select(d => new Drive() { Letter = d } as object).ToList();
}
else
{
items = new List<object>();
try
{
items.AddRange(Directory.GetDirectories(path).Select(d => new FileRecord(d)));
items.AddRange(Directory.GetFiles(path).Select(d => new FileRecord(d)));
}
catch (UnauthorizedAccessException) { }
}
var grid = explorerPage.Add(new Grid(items));
var filter = explorerPage.Add(new TextBox() { Y = 1 });
grid.Width = explorerPage.Width;
grid.Height = explorerPage.Height - 2;
grid.Y = 2;
filter.Width = explorerPage.Width;
grid.FilterTextBox = filter;
explorerPage.Width = explorerPage.Application.LayoutRoot.Width;
explorerPage.Height = explorerPage.Application.LayoutRoot.Height;
grid.Width = explorerPage.Width;
grid.Height = explorerPage.Height - 2;
filter.Width = explorerPage.Width;
var pathColumn = grid.VisibleColumns.Where(c => c.ColumnDisplayName.ToString() == "Path").SingleOrDefault();
if (pathColumn != null)
{
grid.VisibleColumns.Remove(pathColumn);
}
grid.SelectedItemActivated += () =>
{
if (grid.SelectedItem is Drive)
{
explorerPage.PageStack.Navigate((grid.SelectedItem as Drive).Letter.Replace('\\', '/'));
}
else if(Directory.Exists((grid.SelectedItem as FileRecord).Path.Replace('\\', '/')))
{
explorerPage.PageStack.Navigate((grid.SelectedItem as FileRecord).Path.Replace('\\', '/'));
}
else
{
Process.Start((grid.SelectedItem as FileRecord).Path.Replace('\\', '/'));
}
};
grid.KeyInputReceived.SubscribeForLifetime((keyInfo) =>
{
if(keyInfo.Key == ConsoleKey.Delete && grid.SelectedItem != null)
{
if(grid.SelectedItem is FileRecord)
{
var deletePath = (grid.SelectedItem as FileRecord).Path;
if(File.Exists(deletePath))
{
Dialog.ShowMessage("Are you sure you want to delete the file ".ToConsoleString() + Path.GetFileName(deletePath).ToConsoleString(ConsoleColor.Yellow) + "?", (response) =>
{
if(response != null && response.DisplayText == "Yes")
{
File.Delete(deletePath);
explorerPage.PageStack.Refresh();
}
}, true, 12, new DialogButton() { DisplayText = "Yes" }, new DialogButton() { DisplayText = "No" });
}
}
}
}, grid.LifetimeManager);
grid.TryFocus();
};
return explorerPage;
}