public ViewModelViewHost(NSView targetView)
{
NSView viewLastAdded = null;
ViewContractObservable = Observable.Return(default(string));
var vmAndContract = Observable.CombineLatest(
this.WhenAny(x => x.ViewModel, x => x.Value),
this.WhenAnyObservable(x => x.ViewContractObservable),
(vm, contract) => new { ViewModel = vm, Contract = contract, });
vmAndContract.Subscribe(x => {
if (viewLastAdded != null)
{
viewLastAdded.RemoveFromSuperview();
}
if (ViewModel == null)
{
if (DefaultContent != null)
{
targetView.AddSubview(DefaultContent.View);
}
return;
}
var viewLocator = ViewLocator ?? ReactiveUI.ViewLocator.Current;
var view = viewLocator.ResolveView(x.ViewModel, x.Contract);
view.ViewModel = x.ViewModel;
viewLastAdded = ((NSViewController)view).View;
targetView.AddSubview(viewLastAdded);
});
}
public ViewModelViewHost(NSView targetView)
{
NSView viewLastAdded = null;
this.WhenAny(x => x.DefaultContent, x => x.ViewModel, (c, v) => Unit.Default)
.Subscribe(_ => {
if (viewLastAdded != null)
{
viewLastAdded.RemoveFromSuperview();
}
if (ViewModel == null)
{
if (DefaultContent != null)
{
targetView.AddSubview(DefaultContent.View);
}
return;
}
var view = RxRouting.ResolveView(ViewModel);
view.ViewModel = ViewModel;
viewLastAdded = ((NSViewController)view).View;
targetView.AddSubview(viewLastAdded);
});
}
public RoutedViewHost(NSView targetView)
{
NSView viewLastAdded = null;
ViewContractObservable = Observable.Return(default(string));
var vmAndContract = Observable.CombineLatest(
this.WhenAnyObservable(x => x.Router.CurrentViewModel),
this.WhenAnyObservable(x => x.ViewContractObservable),
(vm, contract) => new { ViewModel = vm, Contract = contract, });
vmAndContract.Subscribe(x => {
if (viewLastAdded != null)
{
viewLastAdded.RemoveFromSuperview();
}
if (x.ViewModel == null)
{
if (DefaultContent != null)
{
targetView.AddSubview(DefaultContent.View);
}
return;
}
var viewLocator = ViewLocator ?? ReactiveUI.ViewLocator.Current;
var view = viewLocator.ResolveView(x.ViewModel, x.Contract) ?? viewLocator.ResolveView(x.ViewModel, null);
view.ViewModel = x.ViewModel;
if (view is NSViewController)
{
viewLastAdded = ((NSViewController)view).View;
}
else if (view is NSView)
{
viewLastAdded = (NSView)view;
}
else
{
throw new Exception(String.Format("'{0}' must be an NSViewController or NSView", view.GetType().FullName));
}
targetView.AddSubview(viewLastAdded);
}, RxApp.DefaultExceptionHandler.OnNext);
}
public RoutedViewHost(NSView targetView)
{
NSView viewLastAdded = null;
this.WhenAny(x => x.Router.NavigationStack, x => x.Value)
.SelectMany(x => x.CollectionCountChanged.StartWith(x.Count).Select(_ => x.LastOrDefault()))
.Subscribe(vm => {
if (viewLastAdded != null)
{
viewLastAdded.RemoveFromSuperview();
}
if (vm == null)
{
if (DefaultContent != null)
{
targetView.AddSubview(DefaultContent.View);
}
return;
}
var view = RxRouting.ResolveView(vm);
view.ViewModel = vm;
if (view is NSViewController)
{
viewLastAdded = ((NSViewController)view).View;
}
else if (view is NSView)
{
viewLastAdded = (NSView)view;
}
else
{
throw new Exception(String.Format("'{0}' must be an NSViewController or NSView", view.GetType().FullName));
}
targetView.AddSubview(viewLastAdded);
}, ex => RxApp.DefaultExceptionHandler.OnNext(ex));
}
public ViewModelViewHost(NSView targetView)
{
if (targetView == null)
{
throw new ArgumentNullException("targetView");
}
NSView viewLastAdded = null;
ViewContractObservable = Observable.Return(default(string));
var vmAndContract = Observable.CombineLatest(
this.WhenAny(x => x.ViewModel, x => x.Value),
this.WhenAnyObservable(x => x.ViewContractObservable),
(vm, contract) => new { ViewModel = vm, Contract = contract, });
vmAndContract.Subscribe(x => {
if (viewLastAdded != null)
{
viewLastAdded.RemoveFromSuperview();
}
if (ViewModel == null)
{
if (DefaultContent != null)
{
targetView.AddSubview(DefaultContent.View);
}
return;
}
// get an instance of the view controller for the supplied VM + Contract
var viewLocator = ViewLocator ?? ReactiveUI.ViewLocator.Current;
var viewController = viewLocator.ResolveView(x.ViewModel, x.Contract);
// if not found, throw
if (viewController == null)
{
var message = String.Format("Unable to resolve view for \"{0}\"", x.ViewModel.GetType());
if (x.Contract != null)
{
message += String.Format(" and contract \"{0}\"", x.Contract.GetType());
}
message += ".";
throw new Exception(message);
}
// set the VM on the controller and stash a copy of the added view
viewController.ViewModel = x.ViewModel;
viewLastAdded = ((NSViewController)viewController).View;
// sanity check, view controllers are expect to have a view
if (viewLastAdded == null)
{
var message = string.Format("No view associated with view controller {0}.", viewController.GetType());
throw new Exception(message);
}
if (AddAutoLayoutConstraintsToSubView)
{
// see https://developer.apple.com/library/ios/documentation/userexperience/conceptual/AutolayoutPG/AdoptingAutoLayout/AdoptingAutoLayout.html
viewLastAdded.TranslatesAutoresizingMaskIntoConstraints = false;
}
targetView.AddSubview(viewLastAdded);
if (AddAutoLayoutConstraintsToSubView)
{
// Add edge constraints so that subview trails changes in parent
addEdgeConstraint(NSLayoutAttribute.Left, targetView, viewLastAdded);
addEdgeConstraint(NSLayoutAttribute.Right, targetView, viewLastAdded);
addEdgeConstraint(NSLayoutAttribute.Top, targetView, viewLastAdded);
addEdgeConstraint(NSLayoutAttribute.Bottom, targetView, viewLastAdded);
}
});
}