文章禁止选择，延迟更新

zcbenz · Mar 4, 2012 · 62a967f · 62a967f
1 parent daa2aa1
commit 62a967f
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Showing 9 changed files with 50 additions and 15 deletions.
diff --git a/BoardSettingsPage.xaml.cs b/BoardSettingsPage.xaml.cs
@@ -26,9 +26,8 @@ protected override void OnNavigatedTo(NavigationEventArgs e)
             base.OnNavigatedTo(e);
 
             // 恢复选择
-            int[] modeMap = { 0, 1, 2, 2 };
             ignoreSelection = true;
-            Mode.SelectedIndex = modeMap[App.Service.BoardMode];
+            Mode.SelectedIndex = App.Service.BoardMode % 3;
         }
 
         private bool ignoreSelection = true; // 永远忽略第一次选择（由系统触发）
@@ -44,8 +43,7 @@ private void Mode_SelectionChanged(object sender, SelectionChangedEventArgs e)
             ListPicker list = sender as ListPicker;
 
             // 设置并保存模式
-            int[] modeMap = { 0, 1, 3};
-            int mode = modeMap[list.SelectedIndex];
+            int mode = list.SelectedIndex;
 
             if (mode != App.Service.BoardMode)
             {

diff --git a/MainPage.xaml b/MainPage.xaml
@@ -22,7 +22,7 @@
     toolkit:TiltEffect.IsTiltEnabled="True">
 
     <shell:SystemTray.ProgressIndicator>
-        <shell:ProgressIndicator Text="载入中..."
+        <shell:ProgressIndicator Text="更新中..."
             IsVisible="{Binding IsDataLoaded, Converter={StaticResource BoolReverseConverter}}"
             IsIndeterminate="{Binding IsDataLoaded, Converter={StaticResource BoolReverseConverter}}"/>
     </shell:SystemTray.ProgressIndicator>

diff --git a/MainPage.xaml.cs b/MainPage.xaml.cs
@@ -15,6 +15,7 @@ namespace sbbs_client_wp7
 {
     using Sbbs;
     using System.Collections.ObjectModel;
+    using System.Windows.Threading;
 
     public partial class MainPage : PhoneApplicationPage
     {
@@ -38,12 +39,25 @@ public MainPage()
         }
 
         // Load data for the ViewModel Items
+        private bool isFirstLoading = true;
         private void MainPage_Loaded(object sender, RoutedEventArgs e)
         {
-            if (!App.ViewModel.IsDataLoaded)
+            // 启动时延迟2秒更新
+            if (isFirstLoading)
             {
-                LoadTopten();
-                LoadFavorates();
+                isFirstLoading = false;
+
+                // 延迟两秒后开始刷新
+                DispatcherTimer timer = new DispatcherTimer() { Interval = TimeSpan.FromSeconds(2) };
+                timer.Tick += delegate(object s, EventArgs arg)
+                {
+                    App.ViewModel.IsDataLoaded = false; // 标记开始更新
+
+                    LoadTopten();
+                    LoadFavorates();
+                    timer.Stop();
+                };
+                timer.Start();
             }
         }
 

diff --git a/PostPage.xaml.cs b/PostPage.xaml.cs
@@ -52,7 +52,7 @@ private void Post_Click(object sender, EventArgs e)
         {
             viewModel.IsLoading = true;
 
-            App.Service.TopicPost(board, reid, TitleText.Text, ContentText.Text, delegate(ObservableCollection<TopicViewModel> topics, bool success, string error)
+            App.Service.TopicPost(board, reid, TitleText.Text, ContentText.Text, delegate(TopicViewModel topic, bool success, string error)
             {
                 viewModel.IsLoading = false;
                 if (!success)
@@ -66,7 +66,7 @@ private void Post_Click(object sender, EventArgs e)
                         App.ViewModel.CurrentBoard.NeedRefresh = true;
                     // 跳转到话题时直接在最后添加
                     else
-                        App.ViewModel.CurrentTopic.Topics.Add(topics[0]);
+                        App.ViewModel.CurrentTopic.Topics.Add(topic);
 
                     NavigationService.GoBack();
                 }

diff --git a/Sbbs/Response.cs b/Sbbs/Response.cs
@@ -48,6 +48,22 @@ public ObservableCollection<TopicViewModel> Root
         }
     }
 
+    // 返回单个主题
+    [DataContract]
+    public class TopicResponse : Response, IResponse<TopicViewModel>
+    {
+        [DataMember(Name = "topic")]
+        public TopicViewModel topic;
+
+        public TopicViewModel Root
+        {
+            get
+            {
+                return topic;
+            }
+        }
+    }
+
     // 返回版面集合
     // 符合类型： 收藏夹
     [DataContract]

diff --git a/Sbbs/Service.cs b/Sbbs/Service.cs
@@ -87,14 +87,14 @@ public void Topic(string board, int id, int start, int limit, Action<TopicCollec
         }
 
         // 发帖
-        public void TopicPost(string board, int reid, string title, string content, Action<TopicCollection, bool, string> callback)
+        public void TopicPost(string board, int reid, string title, string content, Action<TopicViewModel, bool, string> callback)
         {
             WebClient wc = new WebClient();
             Uri uri = new Uri(apiBase + "topic/post" + apiPost + "?type=2&token=" + HttpUtility.UrlEncode(Token) + "&board=" + board + "&reid=" + reid
                 + "&title=" + HttpUtility.UrlEncode(title) + "&content=" + HttpUtility.UrlEncode(content));
 
-            wc.DownloadStringCompleted += DownloadedAndParse<TopicCollection, TopicsResponse>;
-            wc.DownloadStringAsync(uri, new ServiceArg<TopicCollection>() { Callback = callback });
+            wc.DownloadStringCompleted += DownloadedAndParse<TopicViewModel, TopicResponse>;
+            wc.DownloadStringAsync(uri, new ServiceArg<TopicViewModel>() { Callback = callback });
         }
 
         // 下载完成后分析JSON数据然后调用回调函数

diff --git a/TopicPage.xaml b/TopicPage.xaml
@@ -61,7 +61,8 @@
         <ScrollViewer Grid.Row="1" Margin="12,0,12,0">
             <StackPanel>
                 <ListBox ItemsSource="{Binding Topics}" ItemTemplate="{StaticResource ContentDataTemplate}"
-                            ScrollViewer.VerticalScrollBarVisibility="Disabled">
+                         ScrollViewer.VerticalScrollBarVisibility="Disabled"
+                         SelectionChanged="ListBox_SelectionChanged">
                     <ListBox.ItemContainerStyle>
                         <Style TargetType="ListBoxItem">
                             <Setter Property="HorizontalContentAlignment" Value="Stretch"/>

diff --git a/TopicPage.xaml.cs b/TopicPage.xaml.cs
@@ -123,5 +123,11 @@ private void LoadTopics()
                     App.ViewModel.CurrentTopic.Topics = topics;
             });
         }
+
+        private void ListBox_SelectionChanged(object sender, SelectionChangedEventArgs e)
+        {
+            if ((sender as ListBox).SelectedIndex != -1)
+                (sender as ListBox).SelectedIndex = -1;
+        }
     }
 }
diff --git a/ViewModels/MainViewModel.cs b/ViewModels/MainViewModel.cs
@@ -146,7 +146,7 @@ public bool IsLogining
         public event LoginChangedHandler LoginChanged;
 
         // 数据是否全部载入完毕
-        private bool isDataLoaded;
+        private bool isDataLoaded = true; // 初始时假装更新完毕，进入程序后再开始更新
         public bool IsDataLoaded
         {
             get