// 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 void OpenSatellite(string tab_caption, string page_caption, SmartPage page2open, string instance_id = null)
{
if (instance_id != null && instance_id.Contains("/"))
{
throw new ArgumentException("The instance_id cannot contain a '/' character.");
}
if (instance_id == null)
{
instance_id = Guid.NewGuid().ToString();
}
var shelldata = Navigator.ShellData;
if (shelldata.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_this = shelldata.FindTabData(this);
FrameData framedata_this = shelldata.FindFrameData(this);
if (tabdata_this.TopMost() != this)
{
throw new InvalidOperationException("Only call OpenSatellite from the topmost Page object.");
}
// Create a unique ID for the satellite tab. For example:
// MASTERPAGE_UNIQUE_ID + "/" + "COUNTRIESLIST_PAGE" + "/" "INTERNAL ID"
// MASTERPAGE_UNIQUE_ID + "/" + "ORDERSTATUSLIST_PAGE" + "/" "INTERNAL ID
string unique_id = tabdata_this.UniqueID + "/" + page2open.GetType().FullName + "/" + instance_id;
// Check if a tab with the unique_id is already open.
var found = shelldata.FindTabData(m => m.UniqueID == unique_id);
// If the tab is found, then select the tab and make it active
if (found != null)
{
var frame = shelldata.FindFrameData(found);
frame.SelectedTab = found;
shelldata.ActiveFrameIndex = frame.Index;
return;
}
// A satellite page is guaranteed not to have satellite pages itself.
//
// If this tab is a satellite tab, it is not possible to open another satellite.
// This is to prevent a tab from becoming both master and satellite at the same time.
//
// MASTER LINKED
// MASTER LINKED
// MASTER LINKED
// orders1 ---> order1 ---> orders2 ----> order2
//
// Even though we asked for the page to be opened as a satellite page, it will be opened as a modal instead.
// The return value however, will be received in the SatellitePageClosed event by the caller.
//
if (tabdata_this.IsSatellite == true)
{
// Open the page as a 'modal' overlay.
page2open.IsModal = true;
page2open.PageCaption = page_caption;
page2open.CloseAction = CloseActionKind.CloseModal_SatelliteClosedEventOnParentPage;
page2open.InstanceID = instance_id;
tabdata_this.PushPage(page2open);
return;
}
page2open.CloseAction = CloseActionKind.CloseTab_With_SatelliteClosedEventOnMasterTab;
page2open.InstanceID = instance_id;
// Is Left, then right..
// Is right, then left...
int opposite_frameindex = 0;
if (framedata_this.Index == 0)
{
opposite_frameindex = 1;
}
// Make sure the screen is split
shelldata.SplitScreen = true;
// Activate
shelldata.ActiveFrameIndex = opposite_frameindex;
// The new tab
FrameData framedata_satellite = shelldata.Frames[opposite_frameindex];
var tabs = framedata_satellite.Tabs;
TabData tabdata_satellite = new TabData(tab_caption, page_caption, page2open, tabdata_this.ColorInfo, unique_id);
// Keep satellite tabs of the same mastertab together.
int insertindex = -1;
for (int i = tabs.Count - 1; i >= 0; i--)
{
if (tabs[i].MasterTabID == tabdata_this.UniqueID)
{
insertindex = i + 1;
break;
}
}
if (insertindex == -1)
{
framedata_satellite.Tabs.Add(tabdata_satellite);
}
else
{
framedata_satellite.Tabs.Insert(insertindex, tabdata_satellite);
}
// Make the new tab selected.
framedata_satellite.SelectedTab = tabdata_satellite;
}
/// <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));
}
}
