// Page Open Transition:
// http://amadeusw.com/xaml/animated-navigation-universal-app
/// <summary>
/// Opens a page as an overlay. It must be closed to return to the page that opened it.
/// </summary>
public async Task <object> OpenModal(string page_caption, SmartPage page2open)
{
ShellData shell_data = Navigator.ShellData;
if (shell_data.ManagesSmartPage(this) == false)
{
throw new InvalidOperationException("This Page object is not managed by the Ventura Navigator.");
}
// Since the page is managed, we are 100% sure the FrameData and TabData will also be found.
TabData tabdata = shell_data.FindTabData(this);
if (tabdata.TopMost() != this)
{
throw new InvalidOperationException("Only call OpenModal for the topmost Page object.");
}
Navigator.CloseAllSatelliteTabs(tabdata.UniqueID);
page2open.IsModal = true;
page2open.PageCaption = page_caption;
page2open.CloseAction = CloseActionKind.ReleaseTCS;
page2open.TCS = new TaskCompletionSource <object>();
// PushPage MUST come before the await.
tabdata.PushPage(page2open);
object result = await page2open.TCS.Task;
return(result);
//await Task.CompletedTask; // Dummy task
}
public static void CloseTab(SmartPage page)
{
if (_shell_data.ManagesSmartPage(page) == false)
{
throw new InvalidOperationException("This Page object is not managed by the Ventura Navigator.");
}
// Since the page is managed, we are 100% sure the FrameData and TabData will also be found.
TabData tabdata = _shell_data.FindTabData(page);
CloseAllSatelliteTabs(tabdata.UniqueID);
tabdata.CloseAllPagesAtOnce();
}
/// <summary>
/// Close the Modal page or close the Tab.
/// </summary>
public void ClosePage(object retvar = null)
{
ShellData shell_data = Navigator.ShellData;
if (shell_data.ManagesSmartPage(this) == false)
{
throw new InvalidOperationException("This Page object is not managed by the Ventura Navigator.");
}
// Find the tab that holds the page in its modalstack.
TabData tabdata = shell_data.FindTabData(this);
if (tabdata.TopMost() != this)
{
throw new InvalidOperationException("Only call CloseModal for the topmost Page object.");
}
Navigator.CloseAllSatelliteTabs(tabdata.UniqueID);
tabdata.PopPage();
// The topmost will be null if no pages left on the stack.
var topmost = tabdata.TopMost();
if (this.CloseAction == CloseActionKind.CloseTab)
{
Navigator.InternalCloseTab(tabdata);
}
else if (this.CloseAction == CloseActionKind.ReleaseTCS)
{
this.TCS.SetResult(retvar);
}
else if (this.CloseAction == CloseActionKind.CloseTab_With_SatelliteClosedEventOnMasterTab)
{
Navigator.InternalCloseTab(tabdata);
TabData tabdata_master = shell_data.FindTabData(tabdata.MasterTabID);
if (tabdata_master != null)
{
FrameData framedata_master = shell_data.FindFrameData(tabdata_master);
// Make the frame containing the master page (for the satellite page) active.
shell_data.ActiveFrameIndex = framedata_master.Index;
// Make the master page the selected tab.
framedata_master.SelectedTab = tabdata_master;
SmartPage topmost_master = tabdata_master.TopMost();
if (topmost_master != null)
{
topmost_master.SatellitePageClosed(this.InstanceID, retvar);
}
}
}
else if (this.CloseAction == CloseActionKind.CloseModal_SatelliteClosedEventOnParentPage)
{
topmost.SatellitePageClosed(this.InstanceID, retvar);
//await Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal, () => topmost.SatellitePageClosed(this.InstanceID, retvar));
}
}