Bunch of work for containers.

- Ordering and paging on the container mostly hooked up. Paging needs to respect item settings.
- Widget settings looking good but not yet functioning. Also need to add filtering.
- Custom part not yet in place for custom ordering/filtering.

--HG--
branch : dev

src/Orchard.Web/Core/Containers/Drivers/ContainerWidgetPartDriver.cs

@@ -0,0 +1,63 @@
+using System;
+using System.Linq;
+using System.Web.Mvc;
+using Orchard.ContentManagement;
+using Orchard.ContentManagement.Aspects;
+using Orchard.ContentManagement.Drivers;
+using Orchard.ContentManagement.Handlers;
+using Orchard.Core.Common.Models;
+using Orchard.Core.Containers.Models;
+using Orchard.Data;
+using Orchard.Localization;
+
+namespace Orchard.Core.Containers.Drivers {
+    public class ContainerWidgetPartDriver : ContentPartDriver<ContainerWidgetPart> {
+        private readonly IContentManager _contentManager;
+
+        public ContainerWidgetPartDriver(IContentManager contentManager) {
+            _contentManager = contentManager;
+            T = NullLocalizer.Instance;
+        }
+
+        public Localizer T { get; set; }
+
+        protected override DriverResult Editor(ContainerWidgetPart part, dynamic shapeHelper) {
+            return Editor(part, null, shapeHelper);
+        }
+
+        protected override DriverResult Editor(ContainerWidgetPart part, IUpdateModel updater, dynamic shapeHelper) {
+            return ContentShape(
+                "Parts_ContainerWidget_Edit",
+                () => {
+                    if (updater != null) 
+                        updater.TryUpdateModel(part, "ContainerSelector", null, null);
+
+                    var containers = _contentManager.Query<ContainerPart, ContainerPartRecord>(VersionOptions.Latest).List();
+
+                    var listItems = containers.Count() < 1
+                        ? new[] {new SelectListItem {Text = T("(None - create container enabled items first)").Text, Value = "0"}}
+                        : containers.Select(x => new SelectListItem {
+                                Value = Convert.ToString(x.Id),
+                                Text = x.ContentItem.TypeDefinition.DisplayName + ": " + x.As<IRoutableAspect>().Title,
+                                Selected = x.Id == part.Record.ContainerId,
+                            });
+
+                    part.AvailableContainers = new SelectList(listItems, "Value", "Text", part.Record.ContainerId);
+
+                    return shapeHelper.EditorTemplate(TemplateName: "ContainerWidget", Model: part, Prefix: "ContainerWidget");
+                });
+        }
+    }
+
+    public class ContainerWidgetPartHandler : ContentHandler {
+        public ContainerWidgetPartHandler(IRepository<ContainerWidgetPartRecord> repository, IOrchardServices orchardServices) {
+            Filters.Add(StorageFilter.For(repository));
+            OnInitializing<ContainerWidgetPart>((context, part) => {
+                part.Record.ContainerId = 0;
+                part.Record.PageSize = 5;
+                part.Record.OrderByProperty = part.Is<CommonPart>() ? "CommonPart.PublishedUtc" : "";
+                part.Record.OrderByDirection = (int)OrderByDirection.Descending;
+            });
+        }
+    }
+}