Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / cdf / src / WF / Activities / Rules / Design / LogicalExpressionTypeConverter.cs / 1305376 / LogicalExpressionTypeConverter.cs
// ---------------------------------------------------------------------------- // Copyright (C) 2006 Microsoft Corporation All Rights Reserved // --------------------------------------------------------------------------- using System.CodeDom; using System.ComponentModel; using System.ComponentModel.Design; using System.Globalization; using System.Security.Permissions; using System.Workflow.ComponentModel; using System.Workflow.ComponentModel.Design; using System.Workflow.Activities.Common; namespace System.Workflow.Activities.Rules.Design { internal abstract class RuleDefinitionDynamicPropertyDescriptor : DynamicPropertyDescriptor { public RuleDefinitionDynamicPropertyDescriptor(IServiceProvider serviceProvider, PropertyDescriptor descriptor) : base(serviceProvider, descriptor) { } protected RuleDefinitions GetRuleDefinitions(object component) { IReferenceService referenceService = ((IReferenceService)this.ServiceProvider.GetService(typeof(IReferenceService))); if (referenceService == null) throw new InvalidOperationException(string.Format(CultureInfo.CurrentCulture, Messages.MissingService, typeof(IReferenceService).FullName)); Activity activity = referenceService.GetComponent(component) as Activity; if (activity == null) return null; Activity root = Helpers.GetRootActivity(activity); if (root == null) return null; Activity declaring = Helpers.GetDeclaringActivity(activity); if (declaring == root || declaring == null) return ConditionHelper.Load_Rules_DT(this.ServiceProvider, root); else return ConditionHelper.GetRuleDefinitionsFromManifest(declaring.GetType()); } } #region Class RuleConditionReferenceTypeConverter internal class RuleConditionReferenceTypeConverter : TypeConverter { public override PropertyDescriptorCollection GetProperties(ITypeDescriptorContext context, object value, Attribute[] attributes) { PropertyDescriptorCollection newProps = new PropertyDescriptorCollection(null); newProps.Add(new RuleConditionReferenceNamePropertyDescriptor(context, TypeDescriptor.CreateProperty(typeof(RuleConditionReference), "ConditionName", typeof(string), new DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility.Content), DesignOnlyAttribute.Yes))); newProps.Add(new RuleConditionReferencePropertyDescriptor(context, TypeDescriptor.CreateProperty(typeof(RuleConditionReference), "Expression", typeof(CodeExpression), new DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility.Content), DesignOnlyAttribute.Yes))); return newProps.Sort(new string[] { "ConditionName", "Expression" }); } public override bool GetPropertiesSupported(ITypeDescriptorContext context) { return true; } } #endregion #region Class CodeDomRuleExpressionTypeConverter internal class RuleConditionReferenceExpressionTypeConverter : TypeConverter { internal RuleConditionReferenceExpressionTypeConverter() { } public override bool CanConvertTo(ITypeDescriptorContext context, Type destinationType) { if (destinationType == typeof(string)) return true; return base.CanConvertTo(context, destinationType); } public override object ConvertTo(ITypeDescriptorContext context, CultureInfo culture, object value, Type destinationType) { if (context == null) throw new ArgumentNullException("context"); if (destinationType != typeof(string)) return base.ConvertTo(context, culture, value, destinationType); CodeExpression expression = value as CodeExpression; if (expression == null) return Messages.ConditionExpression; return new RuleExpressionCondition(expression).ToString(); } } #endregion #region Class RuleSetReferenceTypeConverter internal class RuleSetReferenceTypeConverter : TypeConverter { public override bool CanConvertTo(ITypeDescriptorContext context, Type destinationType) { if (destinationType == typeof(string)) return true; return base.CanConvertTo(context, destinationType); } public override bool CanConvertFrom(ITypeDescriptorContext context, Type sourceType) { if (sourceType == typeof(string)) return true; else return base.CanConvertFrom(context, sourceType); } public override object ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, object valueToConvert) { if (context == null) throw new ArgumentNullException("context"); string ruleSetName = valueToConvert as string; if ((ruleSetName == null) || (ruleSetName.TrimEnd().Length == 0)) ruleSetName = string.Empty; ISite site = PropertyDescriptorUtils.GetSite(context, context.Instance); if (site == null) { string message = string.Format(CultureInfo.CurrentCulture, Messages.MissingService, typeof(ISite).FullName); throw new InvalidOperationException(message); } RuleSetCollection ruleSetCollection = null; RuleDefinitions rules = ConditionHelper.Load_Rules_DT(site, Helpers.GetRootActivity(site.Component as Activity)); if (rules != null) ruleSetCollection = rules.RuleSets; if (ruleSetCollection != null && ruleSetName.Length != 0 && !ruleSetCollection.Contains(ruleSetName)) { //in this case, RuleExpressionCondition is the only type allowed in the ruleConditionCollection RuleSet newRuleSet = new RuleSet(); newRuleSet.Name = ruleSetName; ruleSetCollection.Add(newRuleSet); ConditionHelper.Flush_Rules_DT(site, Helpers.GetRootActivity(site.Component as Activity)); } RuleSetReference ruleSetReference = new RuleSetReference(); ruleSetReference.RuleSetName = ruleSetName; return ruleSetReference; } public override object ConvertTo(ITypeDescriptorContext context, CultureInfo culture, object value, Type destinationType) { if (destinationType == null) throw new ArgumentNullException("destinationType"); if (destinationType != typeof(string)) return base.ConvertTo(context, culture, value, destinationType); RuleSetReference convertedValue = value as RuleSetReference; if (convertedValue != null) return convertedValue.RuleSetName; return null; } public override PropertyDescriptorCollection GetProperties(ITypeDescriptorContext context, object value, Attribute[] attributes) { ISite site = null; IComponent component = PropertyDescriptorUtils.GetComponent(context); if (component != null) site = component.Site; PropertyDescriptorCollection newProps = new PropertyDescriptorCollection(null); newProps.Add(new RuleSetPropertyDescriptor(site, TypeDescriptor.CreateProperty(typeof(RuleSet), "RuleSet Definition", typeof(RuleSet), new DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility.Content), DesignOnlyAttribute.Yes))); return newProps; } public override bool GetPropertiesSupported(ITypeDescriptorContext context) { return true; } } #endregion #region Class RuleSetDefinitionTypeConverter internal class RuleSetDefinitionTypeConverter : TypeConverter { public override bool CanConvertTo(ITypeDescriptorContext context, Type destinationType) { if (destinationType == typeof(string)) return true; return base.CanConvertTo(context, destinationType); } public override object ConvertTo(ITypeDescriptorContext context, CultureInfo culture, object value, Type destinationType) { if (context == null) throw new ArgumentNullException("context"); RuleSet rs = value as RuleSet; if (destinationType == typeof(string) && rs != null) return DesignerHelpers.GetRuleSetPreview(rs); else return base.ConvertTo(context, culture, value, destinationType); } } #endregion #region Class CodeDomRuleNamePropertyDescriptor internal class RuleConditionReferenceNamePropertyDescriptor : DynamicPropertyDescriptor { public RuleConditionReferenceNamePropertyDescriptor(IServiceProvider serviceProvider, PropertyDescriptor descriptor) : base(serviceProvider, descriptor) { } public override object GetEditor(Type editorBaseType) { SecurityPermission MyPermission = new SecurityPermission(PermissionState.Unrestricted); MyPermission.Demand(); return new ConditionNameEditor(); } public override string Description { get { return Messages.NamePropertyDescription; } } public override bool IsReadOnly { get { return false; } } public override object GetValue(object component) { if (component == null) throw new ArgumentNullException("component"); RuleConditionReference conditionDecl = component as RuleConditionReference; if (conditionDecl == null) throw new ArgumentException(string.Format(CultureInfo.CurrentCulture, Messages.NotARuleConditionReference, "component"), "component"); if (conditionDecl.ConditionName != null) return conditionDecl.ConditionName; return null; } public override void SetValue(object component, object value) { if (component == null) throw new ArgumentNullException("component"); RuleConditionReference conditionDecl = component as RuleConditionReference; if (conditionDecl == null) throw new ArgumentException(string.Format(CultureInfo.CurrentCulture, Messages.NotARuleConditionReference, "component"), "component"); string conditionName = value as string; if ((conditionName == null) || (conditionName.TrimEnd().Length == 0)) conditionName = string.Empty; ISite site = PropertyDescriptorUtils.GetSite(this.ServiceProvider, component); if (site == null) { string message = string.Format(CultureInfo.CurrentCulture, Messages.MissingService, typeof(ISite).FullName); throw new InvalidOperationException(message); } RuleConditionCollection conditionDefinitions = null; RuleDefinitions rules = ConditionHelper.Load_Rules_DT(site, Helpers.GetRootActivity(site.Component as Activity)); if (rules != null) conditionDefinitions = rules.Conditions; if (conditionDefinitions != null && conditionName.Length != 0 && !conditionDefinitions.Contains(conditionName)) { //in this case, RuleExpressionCondition is the only type allowed in the ruleConditionCollection RuleExpressionCondition newCondition = new RuleExpressionCondition(); newCondition.Name = conditionName; conditionDefinitions.Add(newCondition); ConditionHelper.Flush_Rules_DT(site, Helpers.GetRootActivity(site.Component as Activity)); } // Cause component change events to be fired. PropertyDescriptor propertyDescriptor = TypeDescriptor.GetProperties(component)["ConditionName"]; if (propertyDescriptor != null) PropertyDescriptorUtils.SetPropertyValue(site, propertyDescriptor, component, conditionName); } } #endregion #region Class CodeDomRuleExpressionPropertyDescriptor internal class RuleConditionReferencePropertyDescriptor : RuleDefinitionDynamicPropertyDescriptor { public RuleConditionReferencePropertyDescriptor(IServiceProvider serviceProvider, PropertyDescriptor descriptor) : base(serviceProvider, descriptor) { } public override TypeConverter Converter { get { return new RuleConditionReferenceExpressionTypeConverter(); } } public override string Description { get { return Messages.ExpressionPropertyDescription; } } public override object GetEditor(Type editorBaseType) { SecurityPermission MyPermission = new SecurityPermission(PermissionState.Unrestricted); MyPermission.Demand(); return new LogicalExpressionEditor(); } public override object GetValue(object component) { if (component == null) throw new ArgumentNullException("component"); RuleConditionReference conditionDecl = component as RuleConditionReference; if (conditionDecl == null) throw new ArgumentException(string.Format(CultureInfo.CurrentCulture, Messages.NotARuleConditionReference, "component"), "component"); if (conditionDecl.ConditionName != null) { RuleDefinitions rules = GetRuleDefinitions(component); if (rules != null) { RuleConditionCollection conditionDefs = rules.Conditions; if (conditionDefs != null && conditionDefs.Contains(conditionDecl.ConditionName)) { //in this case, RuleExpressionCondition is the only type allowed in the ruleConditionCollection RuleExpressionCondition conditionDefinition = (RuleExpressionCondition)conditionDefs[conditionDecl.ConditionName]; return conditionDefinition.Expression; } } } return null; } public override bool IsReadOnly { get { return false; } } public override void SetValue(object component, object value) { if (component == null) throw new ArgumentNullException("component"); RuleConditionReference conditionDecl = component as RuleConditionReference; if (conditionDecl == null) throw new ArgumentNullException("component"); CodeExpression expression = value as CodeExpression; if (conditionDecl.ConditionName != null) { ISite site = PropertyDescriptorUtils.GetSite(this.ServiceProvider, component); if (site == null) { string message = string.Format(CultureInfo.CurrentCulture, Messages.MissingService, typeof(ISite).FullName); throw new InvalidOperationException(message); } RuleConditionCollection conditionDefs = null; RuleDefinitions rules = ConditionHelper.Load_Rules_DT(site, Helpers.GetRootActivity(site.Component as Activity)); if (rules != null) conditionDefs = rules.Conditions; if (conditionDefs != null && conditionDefs.Contains(conditionDecl.ConditionName)) { //in this case, RuleExpressionCondition is the only type allowed in the ruleConditionCollection RuleExpressionCondition conditionDefinition = (RuleExpressionCondition) conditionDefs[conditionDecl.ConditionName]; conditionDefinition.Expression = expression; ConditionHelper.Flush_Rules_DT(site, Helpers.GetRootActivity(site.Component as Activity)); } } } } #endregion #region Class RuleSetPropertyDescriptor internal class RuleSetPropertyDescriptor : RuleDefinitionDynamicPropertyDescriptor { public RuleSetPropertyDescriptor(IServiceProvider serviceProvider, PropertyDescriptor descriptor) : base(serviceProvider, descriptor) { } public override TypeConverter Converter { get { return new RuleSetDefinitionTypeConverter(); } } public override string Description { get { return SR.GetString(SR.RuleSetDefinitionDescription); } } public override object GetEditor(Type editorBaseType) { SecurityPermission MyPermission = new SecurityPermission(PermissionState.Unrestricted); MyPermission.Demand(); return new RuleSetDefinitionEditor(); } public override object GetValue(object component) { if (component == null) throw new ArgumentNullException("component"); RuleSetReference ruleSetReference = component as RuleSetReference; if (!string.IsNullOrEmpty(ruleSetReference.RuleSetName)) { RuleDefinitions rules = GetRuleDefinitions(component); if (rules != null) { RuleSetCollection ruleSetCollection = rules.RuleSets; if (ruleSetCollection != null && ruleSetCollection.Contains(ruleSetReference.RuleSetName)) { //in this case, RuleExpressionCondition is the only type allowed in the ruleConditionCollection RuleSet ruleSet = ruleSetCollection[ruleSetReference.RuleSetName]; return ruleSet; } } } return null; } public override bool IsReadOnly { get { return false; } } public override void SetValue(object component, object value) { if (component == null) throw new ArgumentNullException("component"); RuleSetReference ruleSetReference = component as RuleSetReference; if (ruleSetReference == null) throw new ArgumentNullException("component"); RuleSet ruleSet = value as RuleSet; if (!string.IsNullOrEmpty(ruleSetReference.RuleSetName)) { ISite site = PropertyDescriptorUtils.GetSite(this.ServiceProvider, component); if (site == null) { string message = string.Format(CultureInfo.CurrentCulture, Messages.MissingService, typeof(ISite).FullName); throw new InvalidOperationException(message); } RuleSetCollection ruleSetCollection = null; RuleDefinitions rules = ConditionHelper.Load_Rules_DT(site, Helpers.GetRootActivity(site.Component as Activity)); if (rules != null) ruleSetCollection = rules.RuleSets; if (ruleSetCollection != null && ruleSetCollection.Contains(ruleSetReference.RuleSetName)) { ruleSetCollection.Remove(ruleSetReference.RuleSetName); ruleSetCollection.Add(ruleSet); ConditionHelper.Flush_Rules_DT(site, Helpers.GetRootActivity(site.Component as Activity)); } } } } #endregion } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. 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