Adds the Unpublished Event and the Unpublish Task to workflows (#7929)

Fixes #7902

src/Orchard.Web/Modules/Orchard.Workflows/Activities/ContentActivity.cs

@@ -89,6 +89,16 @@ namespace Orchard.Workflows.Activities {
         }
     }
 
+    public class ContentUnpublishedActivity : ContentActivity {
+        public override string Name {
+            get { return "ContentUnpublished"; }
+        }
+
+
+        public override LocalizedString Description {
+            get { return T("Content is unpublished."); }
+        }
+    }
     public class ContentVersionedActivity : ContentActivity {
         public override string Name {
             get { return "ContentVersioned"; }

src/Orchard.Web/Modules/Orchard.Workflows/Activities/UnpublishActivity.cs

@@ -0,0 +1,42 @@
+using System.Collections.Generic;
+using Orchard.ContentManagement;
+using Orchard.Localization;
+using Orchard.Workflows.Models;
+using Orchard.Workflows.Services;
+
+namespace Orchard.Workflows.Activities {
+    public class UnpublishActivity : Task {
+        private readonly IContentManager _contentManager;
+
+        public UnpublishActivity(IContentManager contentManager) {
+            _contentManager = contentManager;
+        }
+
+        public Localizer T { get; set; }
+
+        public override bool CanExecute(WorkflowContext workflowContext, ActivityContext activityContext) {
+            return true;
+        }
+
+        public override IEnumerable<LocalizedString> GetPossibleOutcomes(WorkflowContext workflowContext, ActivityContext activityContext) {
+            return new[] { T("Unpublished") };
+        }
+
+        public override IEnumerable<LocalizedString> Execute(WorkflowContext workflowContext, ActivityContext activityContext) {
+            _contentManager.Unpublish(workflowContext.Content.ContentItem);
+            yield return T("Unpublished");
+        }
+
+        public override string Name {
+            get { return "Unpublish"; }
+        }
+
+        public override LocalizedString Category {
+            get { return T("Content Items"); }
+        }
+
+        public override LocalizedString Description {
+            get { return T("Unpublish the content item."); }
+        }
+    }
+}

src/Orchard.Web/Modules/Orchard.Workflows/Handlers/WorkflowContentHandler.cs

@@ -15,6 +15,12 @@ namespace Orchard.Workflows.Handlers {
                     context.ContentItem,
                     () => new Dictionary<string, object> { { "Content", context.ContentItem } }));
 
+            OnUnpublished<ContentPart>(
+                (context, part) =>
+                    workflowManager.TriggerEvent("ContentUnpublished",
+                    context.ContentItem,
+                    () => new Dictionary<string, object> { { "Content", context.ContentItem } }));
+
             OnRemoving<ContentPart>(
                 (context, part) =>
                     workflowManager.TriggerEvent("ContentRemoved",

src/Orchard.Web/Modules/Orchard.Workflows/Orchard.Workflows.csproj

@@ -133,6 +133,7 @@
     <Content Include="Scripts\Web.config" />
     <Content Include="Styles\Web.config" />
     <Compile Include="Activities\LoggingActivity.cs" />
+    <Compile Include="Activities\UnpublishActivity.cs" />
     <Compile Include="Forms\LoggingActivityForms.cs" />
     <Compile Include="Helpers\OutcomeSerializerExtensions.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />