Initial push notifications support

3 files changed, 138 insertions, 87 deletions

diff --git a/Juick/Classes/AccountManager.cs b/Juick/Classes/AccountManager.cs
index 4741992..1f9ffe5 100644
--- a/Juick/Classes/AccountManager.cs
+++ b/Juick/Classes/AccountManager.cs
@@ -54,7 +54,22 @@ namespace Juick.Classes
             }

             set { IsolatedStorageSettings.ApplicationSettings["authenticated"] = value; }

         }

+

+        public string NotificationUri

+        {

+            get

+            {

+                string savedUri;

+                IsolatedStorageSettings.ApplicationSettings.TryGetValue<string>("notification_uri", out savedUri);

+                return savedUri;

+            }

+            set

+            {

+                IsolatedStorageSettings.ApplicationSettings["notification_uri"] = value;

+            }

+        }

         

+               

         public void SignOut(Page page)

         {

             IsAuthenticated = false;

diff --git a/Juick/MainPage.xaml.cs b/Juick/MainPage.xaml.cs
index b37bd8f..23418ff 100644
--- a/Juick/MainPage.xaml.cs
+++ b/Juick/MainPage.xaml.cs
@@ -19,50 +19,11 @@ namespace Juick
         public MainPage()

         {

             // Holds the push channel that is created or found.

-            //HttpNotificationChannel pushChannel; // unused variable

-

-            // The name of our push channel.

-            //string channelName = "JuickChannel"; // unused variable

+            

 

             InitializeComponent();

 

-            /*      // Try to find the push channel.

-                  pushChannel = HttpNotificationChannel.Find(channelName);

-

-                  // If the channel was not found, then create a new connection to the push service.

-                  if (pushChannel == null)

-                  {

-                      pushChannel = new HttpNotificationChannel(channelName);

-

-                      // Register for all the events before attempting to open the channel.

-                      pushChannel.ChannelUriUpdated += new EventHandler<NotificationChannelUriEventArgs>(PushChannel_ChannelUriUpdated);

-                      pushChannel.ErrorOccurred += new EventHandler<NotificationChannelErrorEventArgs>(PushChannel_ErrorOccurred);

-

-                      // Register for this notification only if you need to receive the notifications while your application is running.

-                      pushChannel.ShellToastNotificationReceived += new EventHandler<NotificationEventArgs>(PushChannel_ShellToastNotificationReceived);

-

-                      pushChannel.Open();

-

-                      // Bind this new channel for toast events.

-                      pushChannel.BindToShellToast();

-

-                  }

-                  else

-                  {

-                      // The channel was already open, so just register for all the events.

-                      pushChannel.ChannelUriUpdated += new EventHandler<NotificationChannelUriEventArgs>(PushChannel_ChannelUriUpdated);

-                      pushChannel.ErrorOccurred += new EventHandler<NotificationChannelErrorEventArgs>(PushChannel_ErrorOccurred);

-

-                      // Register for this notification only if you need to receive the notifications while your application is running.

-                      pushChannel.ShellToastNotificationReceived += new EventHandler<NotificationEventArgs>(PushChannel_ShellToastNotificationReceived);

-

-                      // Display the URI for testing purposes. Normally, the URI would be passed back to your web service at this point.

-                      System.Diagnostics.Debug.WriteLine(pushChannel.ChannelUri.ToString());

-                      MessageBox.Show(String.Format("Channel Uri is {0}",

-                          pushChannel.ChannelUri.ToString()));

-

-                  }*/

-

+            

             DataContext = App.AppContext;

 

             Loaded += (o, args) =>

@@ -119,52 +80,7 @@ namespace Juick
             

         }

 

-        void PushChannel_ChannelUriUpdated(object sender, NotificationChannelUriEventArgs e)

-        {

-

-            Dispatcher.BeginInvoke(() =>

-            {

-                // Display the new URI for testing purposes.   Normally, the URI would be passed back to your web service at this point.

-                System.Diagnostics.Debug.WriteLine(e.ChannelUri.ToString());

-                MessageBox.Show(String.Format("Channel Uri is {0}",

-                    e.ChannelUri.ToString()));

-

-            });

-        }

-        void PushChannel_ShellToastNotificationReceived(object sender, NotificationEventArgs e)

-        {

-            StringBuilder message = new StringBuilder();

-            string relativeUri = string.Empty;

-

-            message.AppendFormat("Received Toast {0}:\n", DateTime.Now.ToShortTimeString());

-

-            // Parse out the information that was part of the message.

-            foreach (string key in e.Collection.Keys)

-            {

-                message.AppendFormat("{0}: {1}\n", key, e.Collection[key]);

-

-                if (string.Compare(

-                    key,

-                    "wp:Param",

-                    System.Globalization.CultureInfo.InvariantCulture,

-                    System.Globalization.CompareOptions.IgnoreCase) == 0)

-                {

-                    relativeUri = e.Collection[key];

-                }

-            }

-

-            // Display a dialog of all the fields in the toast.

-            Dispatcher.BeginInvoke(() => MessageBox.Show(message.ToString()));

-

-        }

-        void PushChannel_ErrorOccurred(object sender, NotificationChannelErrorEventArgs e)

-        {

-            // Error handling logic for your particular application would be here.

-            Dispatcher.BeginInvoke(() =>

-                MessageBox.Show(String.Format("A push notification {0} error occurred.  {1} ({2}) {3}",

-                    e.ErrorType, e.Message, e.ErrorCode, e.ErrorAdditionalData))

-                    );

-        }

+        

 

         private void ApplicationBarIconButtonClick(object sender, EventArgs e)

         {

diff --git a/Juick/ViewModels/AppViewModel.cs b/Juick/ViewModels/AppViewModel.cs
index 77970df..29e2a6b 100644
--- a/Juick/ViewModels/AppViewModel.cs
+++ b/Juick/ViewModels/AppViewModel.cs
@@ -5,11 +5,98 @@ using System.Linq;
 using Juick.Classes;
 using JuickApi;
 using RestSharp;
+using Microsoft.Phone.Notification;
+using System.Diagnostics;
+using System.Text;
 
 namespace Juick.ViewModels
 {
     public class AppViewModel : ViewModelBase
     {
+        readonly HttpNotificationChannel pushChannel; 
+
+        // The name of our push channel.
+        string channelName = "JuickChannel";
+
+        public AppViewModel()
+        {
+            pushChannel = HttpNotificationChannel.Find(channelName);
+
+                  // If the channel was not found, then create a new connection to the push service.
+            if (pushChannel == null)
+            {
+                pushChannel = new HttpNotificationChannel(channelName);
+
+                // Register for all the events before attempting to open the channel.
+                pushChannel.ChannelUriUpdated += (sender, e) => EnableNotifications(e.ChannelUri.ToString());
+                pushChannel.ErrorOccurred += (sender, e) => DisableNotifications();
+
+                // Register for this notification only if you need to receive the notifications while your application is running.
+                // Register for this notification only if you need to receive the notifications while your application is running.
+                pushChannel.ShellToastNotificationReceived += (sender, e) =>
+                {
+                    StringBuilder message = new StringBuilder();
+                    string relativeUri = string.Empty;
+
+                    message.AppendFormat("Received Toast {0}:\n", DateTime.Now.ToShortTimeString());
+
+                    // Parse out the information that was part of the message.
+                    foreach (string key in e.Collection.Keys)
+                    {
+                        message.AppendFormat("{0}: {1}\n", key, e.Collection[key]);
+
+                        if (string.Compare(
+                            key,
+                            "wp:Param",
+                            System.Globalization.CultureInfo.InvariantCulture,
+                            System.Globalization.CompareOptions.IgnoreCase) == 0)
+                        {
+                            relativeUri = e.Collection[key];
+                        }
+                    }
+                    Debug.WriteLine("Received: " + message.ToString());
+                };
+
+                pushChannel.Open();
+
+                // Bind this new channel for toast events.
+                pushChannel.BindToShellToast();
+
+            }
+            else
+            {
+                // The channel was already open, so just register for all the events.
+                pushChannel.ChannelUriUpdated += (sender, e) => EnableNotifications(e.ChannelUri.ToString());
+                pushChannel.ErrorOccurred += (sender, e) => DisableNotifications();
+
+                // Register for this notification only if you need to receive the notifications while your application is running.
+                pushChannel.ShellToastNotificationReceived += (sender, e) =>
+                {
+                    StringBuilder message = new StringBuilder();
+                    string relativeUri = string.Empty;
+
+                    message.AppendFormat("Received Toast {0}:\n", DateTime.Now.ToShortTimeString());
+
+                    // Parse out the information that was part of the message.
+                    foreach (string key in e.Collection.Keys)
+                    {
+                        message.AppendFormat("{0}: {1}\n", key, e.Collection[key]);
+
+                        if (string.Compare(
+                            key,
+                            "wp:Param",
+                            System.Globalization.CultureInfo.InvariantCulture,
+                            System.Globalization.CompareOptions.IgnoreCase) == 0)
+                        {
+                            relativeUri = e.Collection[key];
+                        }
+                    }
+                    Debug.WriteLine("Received: " + message.ToString());
+                };
+
+                EnableNotifications(pushChannel.ChannelUri.ToString());
+            }
+        }
         private ObservableCollection<PageViewModel> _pages;
         public ObservableCollection<PageViewModel> Pages
         {
@@ -51,5 +138,38 @@ namespace Juick.ViewModels
                 });
             }
         }
+
+        public void EnableNotifications(string Url)
+        {
+            if (!Account.IsAuthenticated) return;
+            Client.Authenticator = new HttpBasicAuthenticator(Account.UserName, Account.Password);
+            Debug.WriteLine(Url.ToString());
+            if (string.IsNullOrEmpty(Account.NotificationUri) || Account.NotificationUri != Url)
+            {
+                Account.NotificationUri = Url;
+                RegisterNotificationUrl(Url);
+            }
+            else
+            {
+                UnregisterNotificationUrl(Account.NotificationUri);
+                Account.NotificationUri = Url;
+                RegisterNotificationUrl(Url);
+            }
+        }
+
+        public void DisableNotifications()
+        {
+            UnregisterNotificationUrl(Account.NotificationUri);
+            Account.NotificationUri = string.Empty;            
+        }
+
+        void RegisterNotificationUrl(string newUrl)
+        {
+            Client.ExecuteAsync(new RestRequest("/winphone/register?url=" + newUrl), response => Debug.WriteLine(response.StatusCode));
+        }
+        void UnregisterNotificationUrl(string oldUrl)
+        {
+            Client.ExecuteAsync(new RestRequest("/winphone/unregister?url=" + oldUrl), response => Debug.WriteLine(response.StatusCode));
+        }
     }
 }