[WIP] Query the pull request using the GraphQL search connection

src/GitHub.App/ViewModels/GitHubPane/IssueListViewModelBase.cs

@@ -286,13 +286,6 @@ bool FilterItem(object o)
                 }
             }
 
-            if (result && AuthorFilter.Selected != null)
-            {
-                result = item.Author.Login.Equals(
-                    AuthorFilter.Selected.Login,
-                    StringComparison.CurrentCultureIgnoreCase);
-            }
-
             return result;
         }
 

src/GitHub.App/ViewModels/GitHubPane/PullRequestListViewModel.cs

@@ -141,12 +141,15 @@ protected override async Task<Page<PullRequestListItemModel>> LoadPage(string af
                         break;
                 }
 
+                var authorLogin = owner.AuthorFilter.Selected?.Login;
+
                 var result = await owner.service.ReadPullRequests(
                     HostAddress.Create(owner.RemoteRepository.CloneUrl),
                     owner.RemoteRepository.Owner,
                     owner.RemoteRepository.Name,
                     after,
-                    states).ConfigureAwait(false);
+                    states,
+                    authorLogin).ConfigureAwait(false);
                 return result;
             }
         }

src/GitHub.Exports.Reactive/Services/IPullRequestService.cs

@@ -19,13 +19,14 @@ public interface IPullRequestService : IIssueishService
         /// <param name="name">The repository name.</param>
         /// <param name="after">The end cursor of the previous page, or null for the first page.</param>
         /// <param name="states">The pull request states to filter by</param>
+        /// <param name="author"></param>
         /// <returns>A page of pull request item models.</returns>
-        Task<Page<PullRequestListItemModel>> ReadPullRequests(
-            HostAddress address,
+        Task<Page<PullRequestListItemModel>> ReadPullRequests(HostAddress address,
             string owner,
             string name,
             string after,
-            PullRequestState[] states);
+            PullRequestState[] states,
+            string author);
 
         /// <summary>
         /// Reads a page of users that can be assigned to pull requests.

src/GitHub.Exports/Models/PullRequestListItemModel.cs

@@ -1,4 +1,5 @@
 using System;
+using System.Collections.Generic;
 
 namespace GitHub.Models
 {

test/GitHub.App.UnitTests/ViewModels/GitHubPane/IssueListViewModelBaseTests.cs

@@ -118,7 +118,7 @@ protected static IPullRequestSessionManager CreateSessionManager(PullRequestDeta
         protected static IPullRequestService CreatePullRequestService(int itemCount = 10)
         {
             var result = Substitute.For<IPullRequestService>();
-            result.ReadPullRequests(null, null, null, null, null).ReturnsForAnyArgs(
+            result.ReadPullRequests(null, null, null, null, null, null).ReturnsForAnyArgs(
                 new Page<PullRequestListItemModel>
                 {
                     Items = Enumerable.Range(0, itemCount).Select(x => new PullRequestListItemModel