internal SideBarController(AxemasApplication app)
{
appref = new WeakReference(app);
}
internal int getBackStackDepth()
{
AxemasApplication app = Application.Current as AxemasApplication;
return(app.RootFrame.BackStackDepth + 1); // First element doesn't count on the backstack
}
public void goTo(JObject data, bool closeSidebar = false)
{
//Debug.WriteLine("GOTO: " + JsonConvert.SerializeObject(data, Formatting.Indented));
AxemasApplication app = Application.Current as AxemasApplication;
int stackPopElements = -1;
if (data["stackPopElements"] != null)
{
stackPopElements = data["stackPopElements"].Value <int>();
}
int stackMaintainedElements = -1;
if (data["stackMaintainedElements"] != null)
{
stackMaintainedElements = Math.Max(data["stackMaintainedElements"].Value <int>(), 0);
}
if (stackPopElements >= getBackStackDepth())
{
// Special case, popping more than available means keeping 0
stackPopElements = -1;
stackMaintainedElements = 0;
}
if (stackPopElements > 0)
{
while (stackPopElements-- > 0)
{
if (app.RootFrame.CanGoBack)
{
app.RootFrame.GoBack();
}
else
{
break;
}
}
}
bool navigate = data.Value <string>("url") != null;
if (stackMaintainedElements == 0)
{
if (!navigate)
{
throw new ArgumentException("Is not possibile to maintain 0 elements if no navigation page is provided");
}
// 0 Maintaned elements is special case as we cannot pop the last view.
// so we insert the new one at the begin of the stack instead of navigating to it.
navigate = false;
stackMaintainedElements = 1;
app.RootFrame.BackStack.Insert(
0,
new PageStackEntry(typeof(Controls.SectionViewPage), Controls.SectionViewPage.BuildNavigationData(data), null)
);
}
if (stackMaintainedElements > 0)
{
while (getBackStackDepth() > stackMaintainedElements)
{
if (app.RootFrame.CanGoBack)
{
app.RootFrame.GoBack();
}
else
{
break;
}
}
}
if (navigate)
{
Controls.SectionViewPage.Navigate(app.RootFrame, typeof(Controls.SectionViewPage), data);
}
if (closeSidebar)
{
getSidebarController().toggleSidebar(false);
}
}
internal AXMNavigationController(AxemasApplication app)
{
appref = new WeakReference(app);
}
