private void LoadHome()
{
LoadHomeProgressBar.Visibility = Visibility.Visible;
if (_url != null)
{
(ApplicationBar.Buttons[0] as ApplicationBarIconButton).IsEnabled = false; //refresh button
(ApplicationBar.Buttons[1] as ApplicationBarIconButton).IsEnabled = false; //user home button
(ApplicationBar.Buttons[2] as ApplicationBarIconButton).IsEnabled = false; //history button
(ApplicationBar.Buttons[3] as ApplicationBarIconButton).IsEnabled = false; //setting button
OfflineTag.Visibility = System.Windows.Visibility.Collapsed;
if (_offline)
{
MitbbsHomeBase _savedHome;
if (App.Settings.OfflineContentManager.TryLoadOfflineContent(_offlineID, _url, out _savedHome))
{
_mitbbsHome = _savedHome;
DataContext = _mitbbsHome;
OfflineTag.Visibility = System.Windows.Visibility.Visible;
AsyncCallHelper.DelayCall(
() => MitbbsHome_Loaded(this, null)
);
}
else
{
MessageBox.Show("离线内容不存在");
LoadHomeProgressBar.Visibility = Visibility.Collapsed;
NavigationService.GoBack();
}
return;
}
if (!AppInfo.IsNetworkConnected())
{
MessageBox.Show("没有可用的网络连接", "无法读取未名空间主页", MessageBoxButton.OK);
LoadHomeProgressBar.Visibility = Visibility.Collapsed;
(ApplicationBar.Buttons[0] as ApplicationBarIconButton).IsEnabled = true; //refresh button
return;
}
_mitbbsHome.HomeLoaded += MitbbsHome_Loaded;
_mitbbsHome.LoadFromUrl(App.WebSession.CreateWebClient(), _url);
PivotControl.Title = " " + App.License.AppTitle + " (" + App.WebSession.Username + ")";
}
}
protected override void OnNavigatedTo(System.Windows.Navigation.NavigationEventArgs e)
{
var parameters = NavigationContext.QueryString;
if (parameters.ContainsKey("OfflineID"))
{
_offline = HtmlAgilityPack.HtmlUtilities.TryParseGuid(parameters["OfflineID"], out _offlineID);
}
#if !NODO
if (!_offline && NavigationService.BackStack.Count() > 1)
{
while (NavigationService.BackStack.Count() > 1)
{
NavigationService.RemoveBackEntry();
}
App.Settings.CurrentSessionHistory.Reset();
}
#endif
if (PageHelper.SessionHistoryHandleNavigateTo(NavigationService))
{
return;
}
App.Settings.CurrentSessionHistory.SetLastPageName(NavigationService, "未名主页");
_selectedPivot = -1;
_scrollOffset = -1;
if (parameters.ContainsKey("ShowPage") && !State.ContainsKey("SelectedIndex"))
{
_selectedPivot = int.Parse(parameters["ShowPage"]);
}
if (_offline && !_pageDeleted && PivotControl.Items.Count >= 4)
{
PivotControl.Items.RemoveAt(3);
ApplicationBar.MenuItems.RemoveAt(0);
ApplicationBar.MenuItems.RemoveAt(0);
ApplicationBar.MenuItems.RemoveAt(0);
}
if (_offline)
{
HeaderImage.Visibility = System.Windows.Visibility.Collapsed;
HomeImage.Visibility = System.Windows.Visibility.Collapsed;
PivotControl.Foreground = (Brush)App.Current.Resources["PhoneAccentBrush"];
if (_mitbbsHome == null)
{
_mitbbsHome = new MitbbsHome();
}
}
else
{
if (_mitbbsHome != App.MitbbsHome)
{
_mitbbsHome = App.MitbbsHome;
DataContext = _mitbbsHome;
}
else if (!_mitbbsHome.IsLoaded)
{
_mitbbsHome.HomeLoaded -= MitbbsHome_Loaded;
App.MitbbsHome = new MitbbsHome();
_mitbbsHome = App.MitbbsHome;
DataContext = _mitbbsHome;
}
}
if (!_mitbbsHome.IsLoaded)
{
if (State.ContainsKey("SelectedIndex"))
{
_selectedPivot = (int)State["SelectedIndex"];
}
if (State.ContainsKey("ScrollOffset"))
{
_scrollOffset = (double)State["ScrollOffset"];
}
}
else
{
_mitbbsHome.ForceUpdateHistoryStatus();
}
base.OnNavigatedTo(e);
#if NODO
if (!_offline && !AppInfo.IsNetworkConnected() && !_redirected)
{
_redirected = true;
MessageBoxResult result = MessageBox.Show("你想直接查看离线内容吗？", "网络连接不存在", MessageBoxButton.OKCancel);
if (result == MessageBoxResult.OK)
{
OfflineMenu_Click(this, null);
return;
}
}
#endif
if (!_mitbbsHome.IsLoaded)
{
LoadHome();
}
}
