107 lines
4.4 KiB
C#
107 lines
4.4 KiB
C#
namespace System.Workflow.Activities
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{
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using System;
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using System.Text;
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using System.Reflection;
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using System.Collections;
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using System.CodeDom;
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using System.ComponentModel;
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using System.ComponentModel.Design;
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using System.Drawing;
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using System.Drawing.Drawing2D;
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using System.Workflow.ComponentModel;
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using System.Workflow.ComponentModel.Design;
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using System.Workflow.ComponentModel.Compiler;
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using System.Workflow.Activities.Common;
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#region Class CallExternalMethodActivityDesigner
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[ActivityDesignerTheme(typeof(InvokeMethodDesignerTheme))]
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internal class CallExternalMethodActivityDesigner : ActivityDesigner
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{
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protected override void PreFilterProperties(IDictionary properties)
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{
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base.PreFilterProperties(properties);
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CallExternalMethodActivity invokeMethod = Activity as CallExternalMethodActivity;
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object corrRefProperty = properties["CorrelationToken"];
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AddRemoveCorrelationToken(invokeMethod.InterfaceType, properties, corrRefProperty);
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Type type = invokeMethod.InterfaceType;
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if (type == null)
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return;
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AddRemoveCorrelationToken(type, properties, corrRefProperty);
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invokeMethod.GetParameterPropertyDescriptors(properties);
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}
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private void AddRemoveCorrelationToken(Type interfaceType, IDictionary properties, object corrRefProperty)
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{
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if (interfaceType != null)
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{
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object[] corrProvAttribs = interfaceType.GetCustomAttributes(typeof(CorrelationProviderAttribute), false);
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object[] corrParamAttribs = interfaceType.GetCustomAttributes(typeof(CorrelationParameterAttribute), false);
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if (corrProvAttribs.Length != 0 || corrParamAttribs.Length != 0)
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{
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if (!properties.Contains("CorrelationToken"))
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properties.Add("CorrelationToken", corrRefProperty);
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return;
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}
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}
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if (properties.Contains("CorrelationToken"))
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properties.Remove("CorrelationToken");
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}
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protected override void OnActivityChanged(ActivityChangedEventArgs e)
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{
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base.OnActivityChanged(e);
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if (e.Member != null)
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{
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if (e.Member.Name == "InterfaceType")
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{
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if (Activity.Site != null)
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{
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Type interfaceType = e.NewValue as Type;
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if (interfaceType != null)
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new ExternalDataExchangeInterfaceTypeFilterProvider(Activity.Site).CanFilterType(interfaceType, true);
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CallExternalMethodActivity invokeActivity = e.Activity as CallExternalMethodActivity;
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PropertyDescriptorUtils.SetPropertyValue(Activity.Site, TypeDescriptor.GetProperties(Activity)["MethodName"], Activity, String.Empty);
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IExtendedUIService extUIService = (IExtendedUIService)Activity.Site.GetService(typeof(IExtendedUIService));
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if (extUIService == null)
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throw new Exception(SR.GetString(SR.General_MissingService, typeof(IExtendedUIService).FullName));
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}
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}
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if ((e.Member.Name == "MethodName")
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&& e.Activity is CallExternalMethodActivity)
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(e.Activity as CallExternalMethodActivity).ParameterBindings.Clear();
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if (e.Member.Name == "InterfaceType" || e.Member.Name == "MethodName" || e.Member.Name == "CorrelationToken")
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TypeDescriptor.Refresh(e.Activity);
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}
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}
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}
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#endregion
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#region InvokeMethodDesignerTheme
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internal sealed class InvokeMethodDesignerTheme : ActivityDesignerTheme
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{
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public InvokeMethodDesignerTheme(WorkflowTheme theme)
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: base(theme)
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{
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this.ForeColor = Color.FromArgb(0xFF, 0x00, 0x00, 0x00);
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this.BorderColor = Color.FromArgb(0xFF, 0x73, 0x79, 0xA5);
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this.BorderStyle = DashStyle.Solid;
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this.BackColorStart = Color.FromArgb(0xFF, 0xDF, 0xE8, 0xFF);
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this.BackColorEnd = Color.FromArgb(0xFF, 0x95, 0xB3, 0xFF);
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this.BackgroundStyle = LinearGradientMode.Horizontal;
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}
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}
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#endregion
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}
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