public RequestDefinition(RouteRequestBuilder theWinningRoute, Shell shell)
{
Item = theWinningRoute.Item;
Section = theWinningRoute.Section ?? Item?.CurrentItem;
Content = theWinningRoute.Content ?? Section?.CurrentItem;
GlobalRoutes = theWinningRoute.GlobalRouteMatches;
List <String> builder = new List <string>();
if (Item?.Route != null)
{
builder.Add(Item.Route);
}
if (Section?.Route != null)
{
builder.Add(Section?.Route);
}
if (Content?.Route != null)
{
builder.Add(Content?.Route);
}
if (GlobalRoutes != null)
{
builder.AddRange(GlobalRoutes);
}
var uriPath = MakeUriString(builder);
var uri = ShellUriHandler.CreateUri(uriPath);
FullUri = ShellUriHandler.ConvertToStandardFormat(shell, uri);
}
public static ShellNavigationSource CalculateNavigationSource(Shell shell, ShellNavigationState current, NavigationRequest request)
{
if (request.StackRequest == NavigationRequest.WhatToDoWithTheStack.PushToIt)
{
return(ShellNavigationSource.Push);
}
if (current == null)
{
return(ShellNavigationSource.ShellItemChanged);
}
var targetUri = ShellUriHandler.ConvertToStandardFormat(shell, request.Request.FullUri);
var currentUri = ShellUriHandler.ConvertToStandardFormat(shell, current.FullLocation);
var targetPaths = ShellUriHandler.RetrievePaths(targetUri.PathAndQuery);
var currentPaths = ShellUriHandler.RetrievePaths(currentUri.PathAndQuery);
var targetPathsLength = targetPaths.Length;
var currentPathsLength = currentPaths.Length;
if (targetPathsLength < 4 || currentPathsLength < 4)
{
return(ShellNavigationSource.Unknown);
}
if (targetPaths[1] != currentPaths[1])
{
return(ShellNavigationSource.ShellItemChanged);
}
if (targetPaths[2] != currentPaths[2])
{
return(ShellNavigationSource.ShellSectionChanged);
}
if (targetPaths[3] != currentPaths[3])
{
return(ShellNavigationSource.ShellContentChanged);
}
if (targetPathsLength == currentPathsLength)
{
return(ShellNavigationSource.Unknown);
}
if (targetPathsLength < currentPathsLength)
{
for (var i = 0; i < targetPathsLength; i++)
{
var targetPath = targetPaths[i];
if (targetPath != currentPaths[i])
{
break;
}
if (i == targetPathsLength - 1)
{
if (targetPathsLength == 4)
{
return(ShellNavigationSource.PopToRoot);
}
return(ShellNavigationSource.Pop);
}
}
if (targetPaths[targetPathsLength - 1] == currentPaths[currentPathsLength - 1])
{
return(ShellNavigationSource.Remove);
}
if (targetPathsLength == 4)
{
return(ShellNavigationSource.PopToRoot);
}
return(ShellNavigationSource.Pop);
}
else if (targetPathsLength > currentPathsLength)
{
for (var i = 0; i < currentPathsLength; i++)
{
if (targetPaths[i] != currentPaths[i])
{
break;
}
if (i == targetPathsLength - 1)
{
return(ShellNavigationSource.Push);
}
}
}
if (targetPaths[targetPathsLength - 1] == currentPaths[currentPathsLength - 1])
{
return(ShellNavigationSource.Insert);
}
return(ShellNavigationSource.Push);
}
