public static bool Run(DependencyObject root, string targetMethodName, object?[] inputParams,
[NotNullWhen(true)] out object?result)
{
Log.Information("Search Tree Run Method {MethodName}", targetMethodName);
var pathComponents = ReflectionHelper.SplitPathString(targetMethodName).ToList();
var methodName = pathComponents.LastOrDefault() ?? "";
var targets = AddPathFollowing(TargetSelector.ResolveTarget(root), pathComponents);
foreach (var target in targets)
{
if (target == null)
{
continue;
}
Log.Debug("Searching Object: {target}", target.ToString());
if (TryInvokeMethod(root, inputParams, target, methodName, out result))
{
return(true);
}
if (TryInvokeCommand(inputParams, methodName, target))
{
return(true);
}
}
Log.Error("Failed to bind method: {MethodName}", targetMethodName);
result = null;
return(false);
}
public void ImplicitTargetTest()
{
object target = new object();
var elt = new FrameworkElement();
elt.DataContext = target;
Assert.Equal(target, TargetSelector.ResolveTarget(elt).First());
}
public void ExplicitTargetTest()
{
object target = new object();
var elt = new FrameworkElement();
TargetSelector.SetTargetProperty(elt, target);
Assert.Equal(target, TargetSelector.ResolveTarget(elt).First());
}
public void EmptyFallThrough()
{
var elt = new FrameworkElement();
var resolvedTargets = TargetSelector.ResolveTarget(elt).ToList();
Assert.Single(resolvedTargets); // just the element
Assert.Equal(elt, resolvedTargets.First());
}
public VisualTreeRunContext(
IDIIntegration diIntegration, DependencyObject root, string targetMethodName,
IEnumerable <object?> inputParameters)
{
DIIntegration = diIntegration;
Root = root;
TargetMethodName = targetMethodName;
InputParameters = inputParameters.ToArray();
Targets = TargetSelector.ResolveTarget(
Root, diIntegration.GetRequired <TargetListCompositeExpander>());
CandidateParameters =
DIIntegration.GetRequired <ParameterListCompositeExpander>()
.Expand(InputParameters.Concat(Targets));
}
private IList <object> Targets(DependencyObject root) => TargetSelector.ResolveTarget(root, new(Array.Empty <ITargetListExpander>()));