public override object GetData(ITabContext context)
{
var request = context.GetRequestContext <HttpContextBase>();
var mobile = request.Request["n0"] == null?request.GetOverriddenBrowser().IsMobileDevice:
request.Request["n0"].StartsWith("Mobile", StringComparison.Ordinal);
var stateDisplayInfo = new StateDisplayInfo();
if (StateContext.State != null)
{
stateDisplayInfo.Page = GetCurrentPage(context, mobile);
stateDisplayInfo.Route = GetCurrentRoute(mobile);
stateDisplayInfo.Theme = GetCurrentTheme(context, mobile);
stateDisplayInfo.Masters = GetCurrentMasters(context, mobile);
}
return(Canvas.Arrange(stateDisplayInfo));
}
internal static CanvasData Arrange(StateDisplayInfo stateDisplayInfo)
{
var transitionElements = new List <TransitionElement>();
var stateElements = new List <StateElement>();
var stateX = Left;
var stateY = Top;
var crumbs = StateController.Crumbs.Select((c, i) => new { Crumb = c, Index = i })
.ToDictionary(c => c.Crumb.State, c => new { Crumb = c.Crumb, c.Index });
foreach (Dialog dialog in StateInfoConfig.Dialogs)
{
stateX = Left;
var depths = CalculateDepths(dialog, transitionElements);
foreach (State state in dialog.States)
{
var stateElement = new StateElement(state);
stateElements.Add(stateElement);
stateElement.X = stateX;
stateElement.Y = stateY;
stateElement.H = StateHeight;
stateElement.Page = state.Page;
stateElement.Route = state.Route;
stateElement.Theme = state.Theme;
stateElement.Masters = state.Masters.ToList();
if (state == StateContext.State)
{
stateElement.Current = state == StateContext.State;
stateElement.Data = StateContext.Data;
stateElement.Page = stateDisplayInfo.Page;
stateElement.Route = stateDisplayInfo.Route;
stateElement.Theme = stateDisplayInfo.Theme;
stateElement.Masters = stateDisplayInfo.Masters;
}
stateElement.Previous = state == StateContext.PreviousState;
stateElement.Back = 0;
if (crumbs.ContainsKey(state))
{
stateElement.Back = crumbs.Count - crumbs[state].Index;
stateElement.Data = crumbs[state].Crumb.Data;
}
if (stateElement.Data == null)
{
stateElement.Data = new NavigationData();
foreach (string key in stateElement.State.Defaults.Keys)
{
stateElement.Data[key] = stateElement.State.Defaults[key];
}
}
stateElement.W = ProcessTransitions(stateElement, transitionElements);
stateX += stateElement.W + StateSeparation;
}
stateY += Top + StateHeight + depths.Count * TransitionStepHeight + FontSize;
}
var selected = stateElements.FirstOrDefault(s => s.Current) ?? new StateElement(new State());
var selectedDialogTrans = transitionElements.Where(t => t.Transition.Parent.Parent == selected.State.Parent).DefaultIfEmpty();
var lastState = stateElements.Last();
return(new CanvasData
{
States = stateElements,
Transitions = transitionElements,
X = Math.Min(0, Width - Math.Min(selected.X + selected.W + Left, selected.X + Width - Left)),
Y = Math.Min(0, Height - Math.Min(Math.Max(selected.Y + selected.H, selectedDialogTrans.Max(t => t != null ? t.Y + t.H : 0)) + PaddingY + FontSize, selected.Y + Height - Top)),
W = Math.Max(Width, stateElements.Max(s => s.X + s.W) + Left),
H = Math.Max(Height, Math.Max(lastState.Y + lastState.H, transitionElements.DefaultIfEmpty().Max(t => t != null ? t.Y + t.H : 0)) + PaddingY + FontSize)
});
}