eMusic Store: Add a Signout link.

This works a little differently to the Amazon version: because we don't
have any other items in the menu, just hiding the item leaves us with an
empty menu in the UI.

If a similar page is added for eMusic, this could be made to work like
Amazon.

2 files changed, 41 insertions, 2 deletions

diff --git a/src/Extensions/Banshee.Emusic.Store/Banshee.Emusic.Store/StoreView.cs b/src/Extensions/Banshee.Emusic.Store/Banshee.Emusic.Store/StoreView.cs
index 4212e93f3..fab133e94 100644
--- a/src/Extensions/Banshee.Emusic.Store/Banshee.Emusic.Store/StoreView.cs
+++ b/src/Extensions/Banshee.Emusic.Store/Banshee.Emusic.Store/StoreView.cs
@@ -52,6 +52,9 @@ namespace Banshee.Emusic.Store
         public StoreView ()
         {
             CanSearch = true;
+            IsSignedIn = false;
+            OssiferSession.CookieChanged += (o, n) => CheckSignIn ();
+            CheckSignIn ();
             FullReload ();
         }
 
@@ -108,5 +111,31 @@ namespace Banshee.Emusic.Store
         {
             LoadUri ("http://integrated-services.banshee.fm/emusic/search/" + System.Uri.EscapeDataString(query));
         }
+
+        public event EventHandler SignInChanged;
+        public bool IsSignedIn { get; private set; }
+
+        public void SignOut ()
+        {
+            LoadUri ("https://www.emusic.com/security/j_acegi_logout.html");
+        }
+
+        private void CheckSignIn ()
+        {
+            bool signed_in = OssiferSession.GetCookie ("EMUSIC_REMEMBER_ME_COOKIE", "www.emusic.com", "/") != null;
+
+            if (IsSignedIn != signed_in) {
+                IsSignedIn = signed_in;
+                OnSignInChanged ();
+            }
+        }
+
+        protected virtual void OnSignInChanged ()
+        {
+            var handler = SignInChanged;
+            if (handler != null) {
+                handler (this, EventArgs.Empty);
+            }
+        }
     }
 }
diff --git a/src/Extensions/Banshee.Emusic.Store/Banshee.Emusic.Store/StoreWebBrowserShell.cs b/src/Extensions/Banshee.Emusic.Store/Banshee.Emusic.Store/StoreWebBrowserShell.cs
index 0d5c8e0c4..3017eebe9 100644
--- a/src/Extensions/Banshee.Emusic.Store/Banshee.Emusic.Store/StoreWebBrowserShell.cs
+++ b/src/Extensions/Banshee.Emusic.Store/Banshee.Emusic.Store/StoreWebBrowserShell.cs
@@ -44,10 +44,20 @@ namespace Banshee.Emusic.Store
 
             SearchEntry.EmptyMessage = String.Format (Catalog.GetString ("Search eMusic"));
 
-            // FIXME: add a ‘sign out’ button, just as soon as someone figures
-            // out how to detect being signed in.
+            store_view.SignInChanged += (o, a) => CheckSignedIn ();
+            CheckSignedIn ();
 
             ShowAll ();
         }
+
+        private void CheckSignedIn ()
+        {
+            if (StoreView.IsSignedIn) {
+                var signout = NavigationControl.AddLink (Catalog.GetString ("Sign Out of eMusic"), null);
+                signout.Activated += (o, a) => StoreView.SignOut ();
+            } else {
+                NavigationControl.ClearLinks ();
+            }
+        }
     }
 }