public void Render()
{
lock (SyncRoot) if (_instance == null)
{
_instance = this;
}
Rendering.Raise(this, EventArgs.Empty);
if (!TabItems.Any())
{
return;
}
if (string.IsNullOrEmpty(Text))
{
Text = "Go to...";
}
PaneManager.Instance.Clear();
var tabs = TabItems.Select(item => CompactFactory.GetNativeObject <TabItem>(item, item.Title)).ToList();
for (int i = 0; i < tabs.Count; i++)
{
var tab = tabs[i];
if (tab == null)
{
continue;
}
tab.View = this;
tab.Index = i;
MenuItems.Add(tab);
var context = new iApp.AppNavigationContext {
ActivePane = Pane.Master, ActiveTab = i
};
PaneManager.Instance.AddStack(new HistoryStack {
Context = context
}, context);
}
var cxt = new iApp.AppNavigationContext {
ActivePane = Pane.Popover,
};
PaneManager.Instance.AddStack(new HistoryStack {
Context = cxt
}, cxt);
if (PaneManager.Instance.CurrentTab > TabItems.Count() || PaneManager.Instance.CurrentTab < 0)
{
PaneManager.Instance.CurrentTab = 0;
}
CompactFactory.Navigate(TabItems.ElementAt(PaneManager.Instance.CurrentTab).NavigationLink, this);
}
private void DeleteTabItem()
{
for (int i = 0; i < TabItems.Count; i++)
{
if (SelectedItem == null)
{
break;
}
if (TabItems.ElementAt(i).Title == SelectedItem.Title)
{
if (!IsSessionLoaded) //for database
{
db.tabItems.Remove(TabItems.ElementAt(i));
db.SaveChanges();
LoadDbModels();
}
else //for xml file
{
TabItems.Remove(TabItems.ElementAt(i));
}
}
}
}
public bool OnNavigationItemSelected(int itemPosition, long itemId)
{
if (DroidFactory.Tabs != this)
{
return(false);
}
var masterStack = (FragmentHistoryStack)PaneManager.Instance.FromNavContext(Pane.Master, itemPosition);
var tab = TabItems.ElementAt(itemPosition);
var nativeTab = DroidFactory.GetNativeObject <TabItem>(TabItems.ElementAt(itemPosition), "tab");
if (itemPosition != SelectedIndex && !PaneManager.Instance.ShouldNavigate(tab.NavigationLink, Pane.Tabs, NavigationType.Tab))
{
return(false);
}
if (masterStack.CurrentView == null)
{
SelectedIndex = itemPosition;
this.OnPropertyChanged("SelectedIndex");
nativeTab.Activate(this);
}
else
{
if (itemPosition == SelectedIndex)
{
masterStack.Align(NavigationType.Tab);
return(true);
}
SelectedIndex = itemPosition;
var navTabs = _model as NavigationTabs;
if (navTabs != null && navTabs.TabItems[itemPosition].RefreshOnFocus)
{
this.OnPropertyChanged("SelectedIndex");
nativeTab.Activate(this);
return(true);
}
iLayer.NavigationContext context;
if (masterStack.CurrentLayer != null && (context = masterStack.CurrentLayer.NavContext) != null)
{
//Fix layer context if it was modified in a different tab
context.ClearPaneHistoryOnOutput = false;
context.NavigatedActivePane = Pane.Tabs;
context.NavigatedActiveTab = itemPosition;
context.OutputOnPane = Pane.Master;
}
if (itemPosition != iApp.CurrentNavContext.ActiveTab)
{
var masterView = (PaneManager.Instance.FromNavContext(Pane.Master, iApp.CurrentNavContext.ActiveTab) as FragmentHistoryStack)?.CurrentView as IView;
iApp.SetNavigationContext(new iLayer.NavigationContext {
OutputOnPane = Pane.Tabs, NavigatedActiveTab = itemPosition,
});
masterView?.RaiseEvent("Deactivated", EventArgs.Empty);
}
nativeTab.OnSelected();
this.OnPropertyChanged("SelectedIndex");
masterStack.Align(NavigationType.Tab);
(PaneManager.Instance.FromNavContext(Pane.Detail, 0) as FragmentHistoryStack)?.PopToRoot();
}
return(true);
}
