private void OnNavigatingToPage(object sender, NavigatingCancelEventArgs e)
{
if (e.NavigationMode == NavigationMode.Back)
{
var item = (from p in this.navlist where p.DestPage == e.SourcePageType select p).SingleOrDefault();
if (item == null && this.AppFrame.BackStackDepth > 0)
{
// In cases where a page drills into sub-pages then we'll highlight the most recent
// navigation menu item that appears in the BackStack
foreach (var entry in this.AppFrame.BackStack.Reverse())
{
item = (from p in this.navlist where p.DestPage == entry.SourcePageType select p).SingleOrDefault();
if (item != null)
{
break;
}
}
}
var container = (ListViewItem)NavMenuList.ContainerFromItem(item);
if (container != null)
{
container.IsTabStop = false;
}
NavMenuList.SetSelectedItem(container);
if (container != null)
{
container.IsTabStop = true;
}
}
}
/// <summary>
/// Ensures the nav menu reflects reality when navigation is triggered outside of
/// the nav menu buttons.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void OnNavigatingToPage(object sender, NavigatingCancelEventArgs e)
{
if (e.NavigationMode == NavigationMode.Back)
{
var item = (from p in this.navlist where p.DestPage == e.SourcePageType select p).SingleOrDefault();
if (item == null && this.AppFrame.BackStackDepth > 0)
{
// In cases where a page drills into sub-pages then we'll highlight the most recent
// navigation menu item that appears in the BackStack
foreach (var entry in this.AppFrame.BackStack.Reverse())
{
item = (from p in this.navlist where p.DestPage == entry.SourcePageType select p).SingleOrDefault();
if (item != null)
{
break;
}
}
}
var container = (ListViewItem)NavMenuList.ContainerFromItem(item);
// While updating the selection state of the item prevent it from taking keyboard focus. If a
// user is invoking the back button via the keyboard causing the selected nav menu item to change
// then focus will remain on the back button.
if (container != null)
{
container.IsTabStop = false;
}
NavMenuList.SetSelectedItem(container);
if (container != null)
{
container.IsTabStop = true;
}
}
}
private void OnNavigatingToPage(object sender, NavigatingCancelEventArgs e)
{
if (e.NavigationMode == NavigationMode.Back)
{
var item = (from p in this.navlist where p.DestPage == e.SourcePageType select p).SingleOrDefault();
if (item == null && this.AppFrame.BackStackDepth > 0)
{
foreach (var entry in this.AppFrame.BackStack.Reverse())
{
item = (from p in this.navlist where p.DestPage == entry.SourcePageType select p).SingleOrDefault();
if (item != null)
{
break;
}
}
}
var container = (ListViewItem)NavMenuList.ContainerFromItem(item);
if (container != null)
{
container.IsTabStop = false;
}
NavMenuList.SetSelectedItem(container);
if (container != null)
{
container.IsTabStop = true;
}
}
}
public MainPage()
{
this.InitializeComponent();
SystemNavigationManager.GetForCurrentView().BackRequested += OnBackRequested;
NavMenuList.SelectedIndex = 0;
NavMenuList.SetSelectedItem(NavMenuList.Items[0] as NavMenuItem);
if (!(Microsoft.Services.Store.Engagement.StoreServicesFeedbackLauncher.IsSupported()))
{
FeedbackNavPaneButton.Visibility = Visibility.Collapsed;
FeedbackEmailNavPaneButton.Visibility = Visibility.Visible;
}
}
/// <summary>
/// Highlight a navigation button for a view or page.
/// </summary>
/// <param name="container"></param>
/// <returns>True if the highlight is successful.</returns>
private bool HighlightNavigationBtn(ListViewItem container)
{
// While updating the selection state of the item prevent it from taking keyboard focus. If a
// user is invoking the back button via the keyboard causing the selected nav menu item to change
// then focus will remain on the back button.
if (container != null)
{
container.IsTabStop = false;
NavMenuList.SetSelectedItem(container);
container.IsTabStop = true;
return(true);
}
else
{
return(false);
}
}
private void SyncMenu()
{
if (MainFrame == null)
{
return;
}
var content = MainFrame.Content as MvxWindowsPage;
var index = -1;
switch (content.BaseUri.Segments[2])
{
case "EventsView.xaml":
index = 0;
break;
case "NotificationsView.xaml":
index = 1;
break;
case "RepositoriesView.xaml":
index = 2;
break;
case "IssuesView.xaml":
index = 3;
break;
case "GistsView.xaml":
index = 4;
break;
}
if (!IsFirstTime)
{
NavMenuList.SelectedIndex = -1;
NavMenuList.SetSelectedItem();
}
IsFirstTime = false;
if (index > -1)
{
NavMenuList.SelectedIndex = index;
NavMenuList.SetSelectedItem(NavMenuList.Items[index] as NavMenuItem);
}
}
private NavMenuItem SelectNavigationItem(NavMenuItem item)
{
if (item == null && AppFrame.BackStackDepth > 0)
{
// in cases where a page drills into sub-pages then we'll highlight the most recent
// navigation menu item that appears in the BackStack
foreach (var entry in AppFrame.BackStack.Reverse())
{
item = GetNavigationItem(entry.SourcePageType);
if (item != null)
{
break;
}
}
}
else if (item == null)
{
var page = AppFrame.Content as UniversalPage;
if (page != null)
{
item = GetNavigationItem(page.ParentPage);
}
}
var container = GetContainerFromItem(item);
// while updating the selection state of the item prevent it from taking keyboard focus. If a
// user is invoking the back button via the keyboard causing the selected nav menu item to change
// then focus will remain on the back button.
if (container != null)
{
container.IsTabStop = false;
}
NavMenuList.SetSelectedItem(container);
NavMenuListBottomDock.SetSelectedItem(container);
if (container != null)
{
container.IsTabStop = true;
}
return(item);
}
private void SelectNavEntryMatching(Type type)
{
var item = (from p in NavMenuListControls.Items where (p as NavMenuItem).DestPage == type select p).FirstOrDefault();
if (item == null)
{
item = (from p in NavMenuList.Items where (p as NavMenuItem).DestPage == type select p).FirstOrDefault();
}
if (item == null && frame.BackStackDepth > 0)
{
// In cases where a page drills into sub-pages then we'll highlight the most recent
// navigation menu item that appears in the BackStack
foreach (var entry in frame.BackStack.Reverse())
{
item = (from p in this.navlist where p.DestPage == entry.SourcePageType select p).FirstOrDefault();
if (item != null)
{
break;
}
}
}
var NavMenu = NavMenuList;
var container = NavMenu.ContainerFromItem(item) as ListViewItem;
if (container == null)
{
NavMenu = NavMenuListControls;
container = NavMenu.ContainerFromItem(item) as ListViewItem;
}
// While updating the selection state of the item prevent it from taking keyboard focus. If a
// user is invoking the back button via the keyboard causing the selected nav menu item to change
// then focus will remain on the back button.
if (container != null)
{
container.IsTabStop = false;
NavMenuList.SetSelectedItem(container);
NavMenuListControls.SetSelectedItem(container);
container.IsTabStop = true;
}
}
private void NavMenuList_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
//Show the back button
SystemNavigationManager.GetForCurrentView().AppViewBackButtonVisibility = AppViewBackButtonVisibility.Visible;
//Change the title
var selectedItem = (sender as NavMenuListView).SelectedValue;
PageTitle.Text = (selectedItem as NavMenuItem)?.Label ?? "There should be a title here.";
//Deselect the other item
if (sender.Equals(NavMenuList))
{
NavMenuListBottom.SetSelectedItem(null);
}
else
{
NavMenuList.SetSelectedItem(null);
}
}
private async void OnLoaded(object sender, RoutedEventArgs routedEventArgs)
{
SystemNavigationManager.GetForCurrentView().BackRequested += OnBackRequested;
NavMenuList.SelectedIndex = 0;
NavMenuList.SetSelectedItem(NavMenuList.Items[0] as NavMenuItem);
if (!(Microsoft.Services.Store.Engagement.StoreServicesFeedbackLauncher.IsSupported()))
{
FeedbackNavPaneButton.Visibility = Visibility.Collapsed;
FeedbackEmailNavPaneButton.Visibility = Visibility.Visible;
}
NavPaneDivider.Visibility = Visibility.Collapsed;
//ViewModel handles the navigation to the 0 index on startup so have to manually set this here.
if (!CrossSecureStorage.Current.HasKey("OAuthToken"))
{
await ApiKeysManager.KeyRetriever();
}
await ViewModel.LoadFragments();
await RegisterAppForStoreNotifications();
}
public void Navigate(NavigationPage navigationPage, object parameter)
{
switch (navigationPage)
{
case NavigationPage.BackupConfirmPage:
MainFrame.Navigate(typeof(BackupConfirmPage), parameter);
break;
case NavigationPage.BackupSecretPhrasePage:
MainFrame.Navigate(typeof(BackupSecretPhrasePage), parameter);
break;
case NavigationPage.ReceiveMoneyPage:
NavMenuList.SetSelectedItem((ListViewItem)NavMenuList.ContainerFromIndex(2));
MainFrame.Navigate(typeof(ReceiveMoneyPage), parameter);
break;
case NavigationPage.SendMoneyPage:
NavMenuList.SetSelectedItem((ListViewItem)NavMenuList.ContainerFromIndex(1));
MainFrame.Navigate(typeof(SendMoneyPage), parameter);
break;
}
}