示例#1
0
        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!");
        }