public override DependencyObject CreateTrigger(StyleSheet styleSheet, ITrigger trigger, Type targetType, DependencyObject styleResourceReferenceHolder)
{
if (trigger == null)
{
throw new ArgumentNullException(nameof(trigger));
}
if (trigger is Trigger)
{
var propertyTrigger = trigger as Trigger;
var nativeTrigger = new System.Windows.Trigger();
var dependencyProperty = dependencyService.GetDependencyProperty(targetType, propertyTrigger.Property);
if (dependencyProperty == null)
{
throw new NullReferenceException($"Property '{propertyTrigger.Property}' may not be null (targetType '{targetType.Name}')!");
}
nativeTrigger.Property = dependencyProperty;
nativeTrigger.Value = dependencyService.GetDependencyPropertyValue(targetType, nativeTrigger.Property.Name, nativeTrigger.Property, propertyTrigger.Value);
foreach (var styleDeclaration in propertyTrigger.StyleDeclarationBlock)
{
var propertyInfo = typeNameResolver.GetDependencyPropertyInfo(styleSheet.Namespaces, targetType, styleDeclaration.Property);
if (propertyInfo == null)
{
continue;
}
try
{
var value = typeNameResolver.GetPropertyValue(propertyInfo.DeclaringType, styleResourceReferenceHolder, propertyInfo.Name, styleDeclaration.Value, propertyInfo.Property, styleSheet.Namespaces);
if (value == null)
{
}
nativeTrigger.Setters.Add(new Setter {
Property = propertyInfo.Property, Value = value
});
}
catch (Exception e)
{
styleSheet.Errors.Add($@"ERROR in property trigger ""{propertyTrigger.Property} {propertyTrigger.Value} - {styleDeclaration.Property}: {styleDeclaration.Value}"": {e.Message}");
}
}
foreach (var action in propertyTrigger.EnterActions)
{
try
{
var nativeTriggerAction = CreateTriggerAction(styleSheet, styleResourceReferenceHolder, action);
nativeTrigger.EnterActions.Add(nativeTriggerAction);
}
catch (Exception e)
{
styleSheet.Errors.Add($@"ERROR in property trigger ""{propertyTrigger.Property} {propertyTrigger.Value}"" enter action: {e.Message}");
}
}
foreach (var action in propertyTrigger.ExitActions)
{
try
{
var nativeTriggerAction = CreateTriggerAction(styleSheet, styleResourceReferenceHolder, action);
nativeTrigger.ExitActions.Add(nativeTriggerAction);
}
catch (Exception e)
{
styleSheet.Errors.Add($@"ERROR in property trigger ""{propertyTrigger.Property} {propertyTrigger.Value}"" exit action: {e.Message}");
}
}
var serialized = SerializeObject(nativeTrigger);
//serialized = $"pre XamlWriter.Save({nativeTrigger.GetType().Name})".Measure(() => XamlWriter.Save(nativeTrigger));
Css.SetSerializedTrigger(nativeTrigger, serialized);
return(nativeTrigger);
}
else if (trigger is DataTrigger)
{
var dataTrigger = trigger as DataTrigger;
var nativeTrigger = new System.Windows.DataTrigger();
string expression = null;
if (typeNameResolver.IsMarkupExtension(dataTrigger.Binding))
{
expression = typeNameResolver.CreateMarkupExtensionExpression(dataTrigger.Binding);
}
else
{
expression = "{Binding " + dataTrigger.Binding + "}";
}
var binding = (System.Windows.Data.BindingBase)markupExtensionParser.ProvideValue(expression, null, styleSheet.Namespaces);
nativeTrigger.Binding = binding;
nativeTrigger.Value = GetBasicValue(dataTrigger);
foreach (var styleDeclaration in dataTrigger.StyleDeclarationBlock)
{
try
{
var propertyInfo = typeNameResolver.GetDependencyPropertyInfo(styleSheet.Namespaces, targetType, styleDeclaration.Property);
if (propertyInfo == null)
{
continue;
}
var value = typeNameResolver.GetPropertyValue(propertyInfo.DeclaringType, styleResourceReferenceHolder, propertyInfo.Name, styleDeclaration.Value, propertyInfo.Property, styleSheet.Namespaces);
if (value == null)
{
}
nativeTrigger.Setters.Add(new Setter {
Property = propertyInfo.Property, Value = value
});
}
catch (Exception e)
{
styleSheet.Errors.Add($@"ERROR in data trigger ""{dataTrigger.Binding} {dataTrigger.Value} - {styleDeclaration.Property}: {styleDeclaration.Value}"": {e.Message}");
}
}
foreach (var action in dataTrigger.EnterActions)
{
try
{
System.Windows.TriggerAction nativeTriggerAction = null;
nativeTriggerAction = CreateTriggerAction(styleSheet, styleResourceReferenceHolder, action);
nativeTrigger.EnterActions.Add(nativeTriggerAction);
}
catch (Exception e)
{
styleSheet.Errors.Add($@"ERROR in data trigger ""{dataTrigger.Binding} {dataTrigger.Value} - {action}"" enter action: {e.Message}");
}
}
foreach (var action in dataTrigger.ExitActions)
{
try
{
var nativeTriggerAction = CreateTriggerAction(styleSheet, styleResourceReferenceHolder, action);
nativeTrigger.ExitActions.Add(nativeTriggerAction);
}
catch (Exception e)
{
styleSheet.Errors.Add($@"ERROR in data trigger ""{dataTrigger.Binding} {dataTrigger.Value} - {action}"" exit action: {e.Message}");
}
}
var serialized = SerializeObject(nativeTrigger);
//serialized = $"pre XamlWriter.Save({nativeTrigger.GetType().Name})".Measure(() => XamlWriter.Save(nativeTrigger));
Css.SetSerializedTrigger(nativeTrigger, serialized);
return(nativeTrigger);
}
else if (trigger is EventTrigger)
{
var eventTrigger = trigger as EventTrigger;
var nativeTrigger = new System.Windows.EventTrigger();
nativeTrigger.RoutedEvent = (RoutedEvent)TypeHelpers.GetFieldValue(targetType, eventTrigger.Event + "Event");
foreach (var action in eventTrigger.Actions)
{
try
{
var nativeTriggerAction = CreateTriggerAction(styleSheet, styleResourceReferenceHolder, action);
nativeTrigger.Actions.Add(nativeTriggerAction);
}
catch (Exception e)
{
styleSheet.Errors.Add($@"ERROR in event trigger ""{eventTrigger.Event} {action.Action}"": {e.Message}");
}
}
var serialized = SerializeObject(nativeTrigger);
//serialized = $"pre XamlWriter.Save({nativeTrigger.GetType().Name})".Measure(() => XamlWriter.Save(nativeTrigger));
Css.SetSerializedTrigger(nativeTrigger, serialized);
return(nativeTrigger);
}
throw new NotSupportedException($"Trigger '{trigger.GetType().FullName}' is not supported!");
}