/// <summary>
/// Adds a new child to the stack.
/// </summary>
/// <param name="viewStack">The view stack.</param>
/// <param name="parentViewStack">The parent view stack.</param>
/// <returns><c>true</c> if added, <c>false</c> otherwise.</returns>
public bool AddChild(ViewStack viewStack, ViewStack parentViewStack)
{
Argument.IsNotNull("viewStack", viewStack);
Argument.IsNotNull("parentViewStack", parentViewStack);
if (ReferenceEquals(this, parentViewStack))
{
viewStack.ViewStackLoaded += OnChildViewStackLoaded;
viewStack.ViewStackUnloaded += OnChildViewStackUnloaded;
viewStack.ViewLoaded += OnChildViewLoaded;
viewStack.ViewUnloaded += OnChildViewUnloaded;
_children.Add(viewStack);
return(true);
}
foreach (var child in _children)
{
if (child.AddChild(viewStack, parentViewStack))
{
return(true);
}
}
return(false);
}
/// <summary>
/// Adds a new child to the stack.
/// </summary>
/// <param name="view">The view.</param>
/// <param name="parentViewStack">The parent view stack.</param>
/// <returns><c>true</c> if added, <c>false</c> otherwise.</returns>
public bool AddChild(IView view, ViewStack parentViewStack)
{
Argument.IsNotNull("view", view);
Argument.IsNotNull("parentViewStack", parentViewStack);
var viewStack = new ViewStack(view, false, parentViewStack);
return(AddChild(viewStack, parentViewStack));
}
/// <summary>
/// Initializes a new instance of the <see cref="ViewStack" /> class.
/// </summary>
/// <param name="view">The view.</param>
/// <param name="isViewLoaded">if set to <c>true</c>, the view is loaded.</param>
/// <param name="parentViewStack">The parent view stack. Can be <c>null</c> for root view stacks.</param>
private ViewStack(IView view, bool isViewLoaded, ViewStack parentViewStack)
{
Argument.IsNotNull("view", view);
_viewInfo = new WeakViewInfo(view, isViewLoaded);
_viewInfo.Loaded += OnViewLoaded;
_viewInfo.Unloaded += OnViewUnloaded;
_parentViewStack = parentViewStack;
if (parentViewStack != null)
{
_parentViewStack.ViewStackLoaded += OnParentViewStackLoaded;
}
}
/// <summary>
/// Initializes a new instance of the <see cref="ViewStack" /> class.
/// </summary>
/// <param name="view">The view.</param>
/// <param name="isViewLoaded">if set to <c>true</c>, the view is loaded.</param>
/// <param name="parentViewStack">The parent view stack. Can be <c>null</c> for root view stacks.</param>
private ViewStack(IView view, bool isViewLoaded, ViewStack parentViewStack)
{
Argument.IsNotNull("view", view);
_viewInfo = new WeakViewInfo(view, isViewLoaded);
_viewInfo.Loaded += OnViewLoaded;
_viewInfo.Unloaded += OnViewUnloaded;
_parentViewStack = parentViewStack;
if (parentViewStack != null)
{
_parentViewStack.ViewStackLoaded += OnParentViewStackLoaded;
}
}
public UninitializedViewInfo(IViewLoadState viewLoadState)
{
ViewLoadState = viewLoadState;
ViewStack = new ViewStack(viewLoadState.View, false);
}
/// <summary>
/// Adds a new child to the stack.
/// </summary>
/// <param name="view">The view.</param>
/// <param name="parentViewStack">The parent view stack.</param>
/// <returns><c>true</c> if added, <c>false</c> otherwise.</returns>
public bool AddChild(IView view, ViewStack parentViewStack)
{
Argument.IsNotNull("view", view);
Argument.IsNotNull("parentViewStack", parentViewStack);
var viewStack = new ViewStack(view, false, parentViewStack);
return AddChild(viewStack, parentViewStack);
}
/// <summary>
/// Adds a new child to the stack.
/// </summary>
/// <param name="viewStack">The view stack.</param>
/// <param name="parentViewStack">The parent view stack.</param>
/// <returns><c>true</c> if added, <c>false</c> otherwise.</returns>
public bool AddChild(ViewStack viewStack, ViewStack parentViewStack)
{
Argument.IsNotNull("viewStack", viewStack);
Argument.IsNotNull("parentViewStack", parentViewStack);
if (ReferenceEquals(this, parentViewStack))
{
viewStack.ViewStackLoaded += OnChildViewStackLoaded;
viewStack.ViewStackUnloaded += OnChildViewStackUnloaded;
viewStack.ViewLoaded += OnChildViewLoaded;
viewStack.ViewUnloaded += OnChildViewUnloaded;
_children.Add(viewStack);
return true;
}
foreach (var child in _children)
{
if (child.AddChild(viewStack, parentViewStack))
{
return true;
}
}
return false;
}
public UninitializedViewInfo(IViewLoadState viewLoadState)
{
ViewLoadState = viewLoadState;
ViewStack = new ViewStack(viewLoadState.View, false);
}
private void AddViewAfterLoaded(UninitializedViewInfo uninitializedViewInfo)
{
var isTopViewStack = true;
var viewLoadState = uninitializedViewInfo.ViewLoadState;
var view = viewLoadState.View;
ViewStack viewStack = null;
var parent = view.FindParentByPredicate(x => x is IView) as FrameworkElement;
if (parent != null)
{
if (_uninitializedViews.ContainsKey(parent))
{
// We have a different uninitialized view that is the parent
var uninitializedParent = _uninitializedViews[parent];
uninitializedParent.ViewStack.AddChild(uninitializedViewInfo.ViewStack, uninitializedParent.ViewStack);
isTopViewStack = false;
}
else
{
// We are now listed to be added to the visual tree
foreach (var existingViewStack in _viewStacks)
{
if (existingViewStack.ContainsView((IView)parent))
{
var viewAsFrameworkElement = view as FrameworkElement;
if (viewAsFrameworkElement != null && _uninitializedViews.ContainsKey(viewAsFrameworkElement))
{
// This happens when we are called from OnFrameworkElementLoaded but out parent wasn't updated yet
existingViewStack.AddChild(_uninitializedViews[viewAsFrameworkElement].ViewStack, existingViewStack);
}
else
{
existingViewStack.AddChild(view, existingViewStack);
}
viewStack = existingViewStack;
isTopViewStack = false;
break;
}
}
}
}
if (isTopViewStack)
{
var topViewStack = uninitializedViewInfo.ViewStack;
topViewStack.ViewStackLoaded += OnViewStackLoaded;
topViewStack.ViewStackUnloaded += OnViewStackUnloaded;
_viewStacks.Add(topViewStack);
viewStack = topViewStack;
}
if (viewStack != null)
{
viewStack.NotifyThatParentIsReadyToAcceptLoadedMessages();
}
}
