internal static NavigationRequest GetNavigationRequest(Shell shell, Uri uri, bool enableRelativeShellRoutes = false, bool throwNavigationErrorAsException = true, ShellNavigationParameters shellNavigationParameters = null)
{
uri = FormatUri(uri, shell);
// figure out the intent of the Uri
NavigationRequest.WhatToDoWithTheStack whatDoIDo = CalculateStackRequest(uri);
Uri request = ConvertToStandardFormat(shell, uri);
var possibleRouteMatches = GenerateRoutePaths(shell, request, uri, enableRelativeShellRoutes);
if (possibleRouteMatches.Count == 0)
{
if (throwNavigationErrorAsException)
{
throw new ArgumentException($"unable to figure out route for: {uri}", nameof(uri));
}
return(null);
}
else if (possibleRouteMatches.Count > 1)
{
string[] matches = new string[possibleRouteMatches.Count];
int i = 0;
foreach (var match in possibleRouteMatches)
{
matches[i] = match.PathFull;
i++;
}
string matchesFound = String.Join(",", matches);
if (throwNavigationErrorAsException)
{
throw new ArgumentException($"Ambiguous routes matched for: {uri} matches found: {matchesFound}", nameof(uri));
}
return(null);
}
var theWinningRoute = possibleRouteMatches[0];
RequestDefinition definition =
new RequestDefinition(theWinningRoute, shell);
NavigationRequest navigationRequest = new NavigationRequest(definition, whatDoIDo, request.Query, request.Fragment);
return(navigationRequest);
}
internal Task GoToPart(NavigationRequest request, Dictionary<string, string> queryData)
{
var shellSection = request.Request.Section;
if (shellSection == null)
shellSection = ShellItemController.GetItems()[0];
Shell.ApplyQueryAttributes(shellSection, queryData, request.Request.Content == null);
if (CurrentItem != shellSection)
SetValueFromRenderer(CurrentItemProperty, shellSection);
return shellSection.GoToPart(request, queryData);
}
internal static NavigationRequest GetNavigationRequest(Shell shell, Uri uri, bool enableRelativeShellRoutes = false)
{
uri = FormatUri(uri, shell);
// figure out the intent of the Uri
NavigationRequest.WhatToDoWithTheStack whatDoIDo = NavigationRequest.WhatToDoWithTheStack.PushToIt;
if (uri.IsAbsoluteUri)
whatDoIDo = NavigationRequest.WhatToDoWithTheStack.ReplaceIt;
else if (uri.OriginalString.StartsWith("//", StringComparison.Ordinal) || uri.OriginalString.StartsWith("\\\\", StringComparison.Ordinal))
whatDoIDo = NavigationRequest.WhatToDoWithTheStack.ReplaceIt;
else
whatDoIDo = NavigationRequest.WhatToDoWithTheStack.PushToIt;
Uri request = ConvertToStandardFormat(shell, uri);
var possibleRouteMatches = GenerateRoutePaths(shell, request, uri, enableRelativeShellRoutes);
if (possibleRouteMatches.Count == 0)
throw new ArgumentException($"unable to figure out route for: {uri}", nameof(uri));
else if (possibleRouteMatches.Count > 1)
{
string[] matches = new string[possibleRouteMatches.Count];
int i = 0;
foreach (var match in possibleRouteMatches)
{
matches[i] = match.PathFull;
i++;
}
string matchesFound = String.Join(",", matches);
throw new ArgumentException($"Ambiguous routes matched for: {uri} matches found: {matchesFound}", nameof(uri));
}
var theWinningRoute = possibleRouteMatches[0];
RequestDefinition definition =
new RequestDefinition(
ConvertToStandardFormat(shell, CreateUri(theWinningRoute.PathFull)),
theWinningRoute.Item,
theWinningRoute.Section,
theWinningRoute.Content,
theWinningRoute.GlobalRouteMatches);
NavigationRequest navigationRequest = new NavigationRequest(definition, whatDoIDo, request.Query, request.Fragment);
return navigationRequest;
}
internal Task GoToPart(NavigationRequest request, Dictionary <string, string> queryData)
{
var shellSection = request.Request.Section;
if (shellSection == null)
{
return(Task.FromResult(true));
}
Shell.ApplyQueryAttributes(shellSection, queryData, request.Request.Content == null);
if (CurrentItem != shellSection)
{
SetValueFromRenderer(CurrentItemProperty, shellSection);
}
return(shellSection.GoToPart(request, queryData));
}
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);
}
