IoC and NavigationService implementation

2026-06-29 15:01:45 +03:00 · 2011-03-25 11:22:57 +02:00
parent 98c8cf3f94
commit f069ee7010
31 changed files with 1139 additions and 73 deletions
@@ -0,0 +1,23 @@
+using System;
+using System.Net;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Documents;
+using System.Windows.Ink;
+using System.Windows.Input;
+using System.Windows.Media;
+using System.Windows.Media.Animation;
+using System.Windows.Shapes;
+using System.Windows.Navigation;
+
+namespace MyFriendsAround.WP7.Helpers.Navigation
+{
+    public interface IPageNavigation
+    {
+        event NavigatingCancelEventHandler Navigating;
+        object CurrentContext { get; }
+        void NavigateTo(Uri pageUri);
+        void NavigateTo(Uri pageUri, object context);
+        void GoBack();
+    }
+}
@@ -0,0 +1,82 @@
+using System;
+using System.Net;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Documents;
+using System.Windows.Ink;
+using System.Windows.Input;
+using System.Windows.Media;
+using System.Windows.Media.Animation;
+using System.Windows.Shapes;
+using Microsoft.Phone.Controls;
+using System.Windows.Navigation;
+
+namespace MyFriendsAround.WP7.Helpers.Navigation
+{
+    public class PageNavigation : IPageNavigation
+    {
+
+        private PhoneApplicationFrame mainFrame;
+        private bool EnsureMainFrame()
+        {
+            if (mainFrame != null)
+            {
+                return true;
+            }
+            mainFrame = Application.Current.RootVisual as PhoneApplicationFrame;
+            if (mainFrame != null)
+            {
+                // Could be null if the app runs inside a design tool
+                mainFrame.Navigating += (s, e) =>
+                {
+                    if (Navigating != null)
+                    {
+                        Navigating(s, e);
+                    }
+                };
+                return true;
+            }
+            return false;
+        }
+
+
+        #region IPageNavigation implementation
+        
+        public event NavigatingCancelEventHandler Navigating;
+
+        private object currentContext;
+        public object CurrentContext
+        {
+            get { return this.currentContext; }
+        }
+
+        public void NavigateTo(Uri pageUri)
+        {
+            if (pageUri == null)
+                throw new ArgumentNullException("uri");
+            if (EnsureMainFrame())
+                this.NavigateTo(pageUri, null);
+        }
+
+        public void NavigateTo(Uri pageUri, object context)
+        {
+            if (pageUri == null)
+                throw new ArgumentNullException("uri");
+            if (EnsureMainFrame())
+            {
+                this.currentContext = context;
+                mainFrame.Navigate(pageUri);
+            }
+        }
+
+        public void GoBack()
+        {
+            if (EnsureMainFrame() && mainFrame.CanGoBack)
+            {
+                mainFrame.GoBack();
+            }
+        }
+
+        #endregion
+    }
+}