protected override void OnNavigatedTo(NavigationEventArgs e)
{
base.OnNavigatedTo(e);
Tag = e.Parameter;
if (e.Parameter is FeedItem feed)
{
BindingContext.Title = "通知详情";
PrimaryMenu.Add(new AppBarButton {
Icon = new SymbolIcon(Symbol.Flag), Label = "详情", Command = new Command(() => Device.OpenUri(new Uri(feed.Link)))
});
Title = feed.Title;
Time = "时间：" + feed.PubDate;
Sender = "分类：" + feed.Category;
Body = feed.Description.Replace(' ', '\n');
}
else if (e.Parameter is IMessageItem msg)
{
BindingContext.Title = "消息详情";
PrimaryMenu.Add(new AppBarButton {
Icon = new SymbolIcon(Symbol.Delete), Label = "设为未读", Command = msg.SetUnread
});
PrimaryMenu.Add(new AppBarButton {
Icon = new SymbolIcon(Symbol.Delete), Label = "删除", Command = msg.Delete
});
Title = msg.Title;
Time = "时间：" + msg.Time.ToString();
Sender = "发件人：" + msg.Sender;
Body = msg.Body;
}
}
protected override void OnNavigatedTo(NavigationEventArgs e)
{
if (e.Parameter is AboutViewModel vm)
{
BindingContext = AboutViewModel.Instance;
AboutViewModel.Instance.BindingContext = new ViewResponse(this);
var sb = new StringBuilder();
AboutViewModel.Instance.HtmlDocument.ToHtml(sb);
WebView.Html = sb.ToString();
WebView.Register = AboutViewModel.Instance.Response;
}
else if (e.Parameter is IInfoEntrance entrance)
{
BindingContext = new BaseViewModel {
Title = entrance.Name
};
entrance.Evaluate = WebView.InvokeScript;
InfoEntrance = entrance;
InfoEntrance.Binding = new ViewResponse(this);
var sb = new StringBuilder();
InfoEntrance.HtmlDocument.ToHtml(sb);
WebView.Html = sb.ToString();
WebView.Register = entrance.Receive;
foreach (var key in InfoEntrance.Menu)
{
PrimaryMenu.Add(new AppBarButton {
Label = key.Name, Command = key.Command, Icon = new FontIcon {
FontFamily = new FontFamily("Segoe MDL2 Assets"), Glyph = key.Icon
}
});
}
}
}
protected override void OnNavigatedTo(NavigationEventArgs e)
{
base.OnNavigatedTo(e);
Tag = e.Parameter;
if (e.Parameter is FeedItem feed)
{
ViewModel.Title = "通知详情";
PrimaryMenu.Add(new AppBarButton {
Icon = new SymbolIcon(Symbol.Flag), Label = "详情", Command = new Command(() => Device.OpenUri(new Uri(feed.Link)))
});
Title = feed.Title;
Time = "时间：" + feed.PubDate;
Sender = "分类：" + feed.Category;
var desc = feed.Description.Trim();
while (desc.Contains(" "))
{
desc = desc.Replace(" ", " ");
}
Body = desc;
}
else if (e.Parameter is IMessageItem msg)
{
ViewModel.Title = "消息详情";
PrimaryMenu.Add(new AppBarButton {
Icon = new SymbolIcon(Symbol.Delete), Label = "删除", Command = msg.Delete
});
Title = msg.Title;
Time = "时间：" + msg.Time.ToString();
Sender = "发件人：" + msg.Sender;
Body = msg.Body;
}
}
public ShellViewModel(INavigationServiceEx navigationService)
{
navigationService.Navigated += (sender, args) =>
{
switch (navigationService.CurrentPageKey)
{
case PageKeys.HOME:
case PageKeys.SETTINGS:
case PageKeys.ABOUT:
{
navigationService.Root.BackStack.Clear();
}
break;
}
if (navigationService.Root.CanGoBack)
{
SystemNavigationManager.GetForCurrentView().AppViewBackButtonVisibility = AppViewBackButtonVisibility.Visible;
}
else
{
SystemNavigationManager.GetForCurrentView().AppViewBackButtonVisibility = AppViewBackButtonVisibility.Collapsed;
}
foreach (var item in PrimaryMenu)
{
(item.NavigateCommand as RelayCommand).RaiseCanExecuteChanged();
}
foreach (var item in SecondaryMenu)
{
(item.NavigateCommand as RelayCommand).RaiseCanExecuteChanged();
}
};
// Build the menus
PrimaryMenu.Add(new MenuItem()
{
Glyph = Icon.GetIcon("HomeIcon"),
Text = "Home",
NavigateCommand = new RelayCommand(() => { navigationService.NavigateTo(PageKeys.HOME); },
() => { return(!navigationService.CurrentPageKey.Equals(PageKeys.HOME)); })
});
SecondaryMenu.Add(new MenuItem()
{
Glyph = Icon.GetIcon("GearIcon"),
Text = "Settings",
NavigateCommand = new RelayCommand(() => { navigationService.NavigateTo(PageKeys.SETTINGS); },
() => { return(!navigationService.CurrentPageKey.Equals(PageKeys.SETTINGS)); })
});
SecondaryMenu.Add(new MenuItem()
{
Glyph = Icon.GetIcon("InfoIcon"),
Text = "About",
NavigateCommand = new RelayCommand(() => { navigationService.NavigateTo(PageKeys.ABOUT); },
() => { return(!navigationService.CurrentPageKey.Equals(PageKeys.ABOUT)); })
});
}
protected override void OnNavigatedTo(NavigationEventArgs e)
{
System.Diagnostics.Debug.Assert(e.Parameter is IWebEntrance, "Error leading");
InfoEntrance = e.Parameter as BaseController;
var meta = InfoEntrance.GetType().GetCustomAttribute(typeof(EntAttr)) as EntAttr;
ViewModel = e.Parameter as BaseController;
ViewModel.Title = meta.Title;
InfoEntrance.Evaluate = WebView.InvokeScript;
InfoEntrance.View = ViewResponse;
WebView.Register = InfoEntrance.Receive;
foreach (var key in InfoEntrance.Menu)
{
PrimaryMenu.Add(new AppBarButton
{
Label = key.Name,
Command = key.Command,
CommandParameter = (Action <IWebEntrance>)OnEntranceRequested,
Icon = new FontIcon
{
FontFamily = new FontFamily("Segoe MDL2 Assets"),
Glyph = key.Icon
}
});
}
if (InfoEntrance is IInfoEntrance info)
{
var sb = new StringBuilder();
info.HtmlDocument.ToHtml(sb);
WebView.Html = sb.ToString();
}
else if (InfoEntrance is IUrlEntrance urle)
{
WebView.Url = urle.HtmlUrl;
WebView.SubUrlRequested += OnSubUrlRequested;
if (WebView.Url.Contains("://"))
{
ViewModel.SetIsBusy(true);
WebView.LoadCompleted += () => ViewModel.SetIsBusy(false);
}
}
}
