Example #1
0
        /// <summary>
        /// Adds the view load state.
        /// </summary>
        /// <param name="viewLoadState">The view load state.</param>
        /// <exception cref="ArgumentNullException">The <paramref name="viewLoadState" /> is <c>null</c>.</exception>
        public void AddView(IViewLoadState viewLoadState)
        {
            Argument.IsNotNull("viewLoadState", viewLoadState);

#if SILVERLIGHT
            var frameworkElement = viewLoadState.View as FrameworkElement;
            if (frameworkElement != null)
            {
                _uninitializedViews[frameworkElement] = new UninitializedViewInfo(viewLoadState);

                frameworkElement.Loaded += OnFrameworkElementLoaded;
            }
#else
            var viewInfo = new WeakViewInfo(viewLoadState.View);
            viewInfo.Loaded   += OnViewInfoLoaded;
            viewInfo.Unloaded += OnViewInfoUnloaded;

            _views.Add(viewInfo);
#endif
        }
Example #2
0
        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();
            }
        }
Example #3
0
        /// <summary>
        /// Adds the view load state.
        /// </summary>
        /// <param name="viewLoadState">The view load state.</param>
        /// <exception cref="ArgumentNullException">The <paramref name="viewLoadState" /> is <c>null</c>.</exception>
        public void AddView(IViewLoadState viewLoadState)
        {
            Argument.IsNotNull("viewLoadState", viewLoadState);

#if SILVERLIGHT
            var frameworkElement = viewLoadState.View as FrameworkElement;
            if (frameworkElement != null)
            {
                _uninitializedViews[frameworkElement] = new UninitializedViewInfo(viewLoadState);

                frameworkElement.Loaded += OnFrameworkElementLoaded;
            }
#else
            var viewInfo = new WeakViewInfo(viewLoadState.View);
            viewInfo.Loaded += OnViewInfoLoaded;
            viewInfo.Unloaded += OnViewInfoUnloaded;

            _views.Add(viewInfo);
#endif
        }
Example #4
0
        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();
            }
        }